Merge branch 'acpi-processor'

* acpi-processor:
  ACPI / CPPC: Fix potential memory leak
  ACPI / CPPC: signedness bug in register_pcc_channel()
  ACPI: Allow selection of the ACPI processor driver for ARM64
  CPPC: Probe for CPPC tables for each ACPI Processor object
  ACPI: Add weak routines for ACPI CPU Hotplug
  ACPI / CPPC: Add a CPUFreq driver for use with CPPC
  ACPI: Introduce CPU performance controls using CPPC
diff --git a/.mailmap b/.mailmap
index 4b31af5..b1e9a97 100644
--- a/.mailmap
+++ b/.mailmap
@@ -59,6 +59,7 @@
 James Bottomley <jejb@titanic.il.steeleye.com>
 James E Wilson <wilson@specifix.com>
 James Ketrenos <jketreno@io.(none)>
+<javier@osg.samsung.com> <javier.martinez@collabora.co.uk>
 Jean Tourrilhes <jt@hpl.hp.com>
 Jeff Garzik <jgarzik@pretzel.yyz.us>
 Jens Axboe <axboe@suse.de>
diff --git a/Documentation/arm/OMAP/README b/Documentation/arm/OMAP/README
new file mode 100644
index 0000000..75645c4
--- /dev/null
+++ b/Documentation/arm/OMAP/README
@@ -0,0 +1,7 @@
+This file contains documentation for running mainline
+kernel on omaps.
+
+KERNEL		NEW DEPENDENCIES
+v4.3+		Update is needed for custom .config files to make sure
+		CONFIG_REGULATOR_PBIAS is enabled for MMC1 to work
+		properly.
diff --git a/MAINTAINERS b/MAINTAINERS
index 5f46784..9de185d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -894,11 +894,12 @@
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 
-ARM/Allwinner A1X SoC support
+ARM/Allwinner sunXi SoC support
 M:	Maxime Ripard <maxime.ripard@free-electrons.com>
+M:	Chen-Yu Tsai <wens@csie.org>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
-N:	sun[x4567]i
+N:	sun[x456789]i
 
 ARM/Allwinner SoC Clock Support
 M:	Emilio López <emilio@elopez.com.ar>
@@ -3591,6 +3592,13 @@
 F:	include/drm/i915*
 F:	include/uapi/drm/i915*
 
+DRM DRIVERS FOR ATMEL HLCDC
+M:	Boris Brezillon <boris.brezillon@free-electrons.com>
+L:	dri-devel@lists.freedesktop.org
+S:	Supported
+F:	drivers/gpu/drm/atmel-hlcdc/
+F:	Documentation/devicetree/bindings/drm/atmel/
+
 DRM DRIVERS FOR EXYNOS
 M:	Inki Dae <inki.dae@samsung.com>
 M:	Joonyoung Shim <jy0922.shim@samsung.com>
@@ -3619,6 +3627,14 @@
 F:	drivers/gpu/drm/imx/
 F:	Documentation/devicetree/bindings/drm/imx/
 
+DRM DRIVERS FOR GMA500 (Poulsbo, Moorestown and derivative chipsets)
+M:	Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
+L:	dri-devel@lists.freedesktop.org
+T:	git git://github.com/patjak/drm-gma500
+S:	Maintained
+F:	drivers/gpu/drm/gma500
+F:	include/drm/gma500*
+
 DRM DRIVERS FOR NVIDIA TEGRA
 M:	Thierry Reding <thierry.reding@gmail.com>
 M:	Terje Bergström <tbergstrom@nvidia.com>
@@ -6778,7 +6794,6 @@
 
 MELLANOX ETHERNET DRIVER (mlx4_en)
 M:	Amir Vadai <amirv@mellanox.com>
-M:	Ido Shamay <idos@mellanox.com>
 L:	netdev@vger.kernel.org
 S:	Supported
 W:	http://www.mellanox.com
@@ -9101,6 +9116,15 @@
 F: Documentation/devicetree/bindings/net/snps,dwc-qos-ethernet.txt
 F: drivers/net/ethernet/synopsys/dwc_eth_qos.c
 
+SYNOPSYS DESIGNWARE I2C DRIVER
+M:	Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+M:	Jarkko Nikula <jarkko.nikula@linux.intel.com>
+M:	Mika Westerberg <mika.westerberg@linux.intel.com>
+L:	linux-i2c@vger.kernel.org
+S:	Maintained
+F:	drivers/i2c/busses/i2c-designware-*
+F:	include/linux/platform_data/i2c-designware.h
+
 SYNOPSYS DESIGNWARE MMC/SD/SDIO DRIVER
 M:	Seungwon Jeon <tgih.jun@samsung.com>
 M:	Jaehoon Chung <jh80.chung@samsung.com>
@@ -11651,6 +11675,7 @@
 ZSMALLOC COMPRESSED SLAB MEMORY ALLOCATOR
 M:	Minchan Kim <minchan@kernel.org>
 M:	Nitin Gupta <ngupta@vflare.org>
+R:	Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
 L:	linux-mm@kvack.org
 S:	Maintained
 F:	mm/zsmalloc.c
diff --git a/Makefile b/Makefile
index 416660d..431067a 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 4
 PATCHLEVEL = 3
 SUBLEVEL = 0
-EXTRAVERSION = -rc5
+EXTRAVERSION = -rc7
 NAME = Blurry Fish Butt
 
 # *DOCUMENTATION*
diff --git a/arch/arm/boot/dts/am57xx-beagle-x15.dts b/arch/arm/boot/dts/am57xx-beagle-x15.dts
index 568adf5..d55e3ea 100644
--- a/arch/arm/boot/dts/am57xx-beagle-x15.dts
+++ b/arch/arm/boot/dts/am57xx-beagle-x15.dts
@@ -402,11 +402,12 @@
 				/* SMPS9 unused */
 
 				ldo1_reg: ldo1 {
-					/* VDD_SD  */
+					/* VDD_SD / VDDSHV8  */
 					regulator-name = "ldo1";
 					regulator-min-microvolt = <1800000>;
 					regulator-max-microvolt = <3300000>;
 					regulator-boot-on;
+					regulator-always-on;
 				};
 
 				ldo2_reg: ldo2 {
diff --git a/arch/arm/boot/dts/armada-385-db-ap.dts b/arch/arm/boot/dts/armada-385-db-ap.dts
index 89f5a95..4047621 100644
--- a/arch/arm/boot/dts/armada-385-db-ap.dts
+++ b/arch/arm/boot/dts/armada-385-db-ap.dts
@@ -46,7 +46,7 @@
 
 / {
 	model = "Marvell Armada 385 Access Point Development Board";
-	compatible = "marvell,a385-db-ap", "marvell,armada385", "marvell,armada38x";
+	compatible = "marvell,a385-db-ap", "marvell,armada385", "marvell,armada380";
 
 	chosen {
 		stdout-path = "serial1:115200n8";
diff --git a/arch/arm/boot/dts/berlin2q.dtsi b/arch/arm/boot/dts/berlin2q.dtsi
index 63a4849..d4dbd28 100644
--- a/arch/arm/boot/dts/berlin2q.dtsi
+++ b/arch/arm/boot/dts/berlin2q.dtsi
@@ -152,7 +152,7 @@
 		};
 
 		usb_phy2: phy@a2f400 {
-			compatible = "marvell,berlin2-usb-phy";
+			compatible = "marvell,berlin2cd-usb-phy";
 			reg = <0xa2f400 0x128>;
 			#phy-cells = <0>;
 			resets = <&chip_rst 0x104 14>;
@@ -170,7 +170,7 @@
 		};
 
 		usb_phy0: phy@b74000 {
-			compatible = "marvell,berlin2-usb-phy";
+			compatible = "marvell,berlin2cd-usb-phy";
 			reg = <0xb74000 0x128>;
 			#phy-cells = <0>;
 			resets = <&chip_rst 0x104 12>;
@@ -178,7 +178,7 @@
 		};
 
 		usb_phy1: phy@b78000 {
-			compatible = "marvell,berlin2-usb-phy";
+			compatible = "marvell,berlin2cd-usb-phy";
 			reg = <0xb78000 0x128>;
 			#phy-cells = <0>;
 			resets = <&chip_rst 0x104 13>;
diff --git a/arch/arm/boot/dts/exynos5420-peach-pit.dts b/arch/arm/boot/dts/exynos5420-peach-pit.dts
index 8f4d76c..1b95da7 100644
--- a/arch/arm/boot/dts/exynos5420-peach-pit.dts
+++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts
@@ -915,6 +915,11 @@
 	};
 };
 
+&pmu_system_controller {
+	assigned-clocks = <&pmu_system_controller 0>;
+	assigned-clock-parents = <&clock CLK_FIN_PLL>;
+};
+
 &rtc {
 	status = "okay";
 	clocks = <&clock CLK_RTC>, <&max77802 MAX77802_CLK_32K_AP>;
diff --git a/arch/arm/boot/dts/exynos5800-peach-pi.dts b/arch/arm/boot/dts/exynos5800-peach-pi.dts
index 7d5b386..8f40c7e 100644
--- a/arch/arm/boot/dts/exynos5800-peach-pi.dts
+++ b/arch/arm/boot/dts/exynos5800-peach-pi.dts
@@ -878,6 +878,11 @@
 	};
 };
 
+&pmu_system_controller {
+	assigned-clocks = <&pmu_system_controller 0>;
+	assigned-clock-parents = <&clock CLK_FIN_PLL>;
+};
+
 &rtc {
 	status = "okay";
 	clocks = <&clock CLK_RTC>, <&max77802 MAX77802_CLK_32K_AP>;
diff --git a/arch/arm/boot/dts/imx7d.dtsi b/arch/arm/boot/dts/imx7d.dtsi
index b738ce0..6e444bb 100644
--- a/arch/arm/boot/dts/imx7d.dtsi
+++ b/arch/arm/boot/dts/imx7d.dtsi
@@ -588,10 +588,10 @@
 				status = "disabled";
 			};
 
-			uart2: serial@30870000 {
+			uart2: serial@30890000 {
 				compatible = "fsl,imx7d-uart",
 					     "fsl,imx6q-uart";
-				reg = <0x30870000 0x10000>;
+				reg = <0x30890000 0x10000>;
 				interrupts = <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>;
 				clocks = <&clks IMX7D_UART2_ROOT_CLK>,
 					<&clks IMX7D_UART2_ROOT_CLK>;
diff --git a/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts b/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts
index 91146c3..5b04300 100644
--- a/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts
+++ b/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts
@@ -12,7 +12,7 @@
 
 / {
 	model = "LogicPD Zoom DM3730 Torpedo Development Kit";
-	compatible = "logicpd,dm3730-torpedo-devkit", "ti,omap36xx";
+	compatible = "logicpd,dm3730-torpedo-devkit", "ti,omap3630", "ti,omap3";
 
 	gpio_keys {
 		compatible = "gpio-keys";
diff --git a/arch/arm/boot/dts/meson.dtsi b/arch/arm/boot/dts/meson.dtsi
index 5484413..8c77c87 100644
--- a/arch/arm/boot/dts/meson.dtsi
+++ b/arch/arm/boot/dts/meson.dtsi
@@ -67,7 +67,7 @@
 
 	timer@c1109940 {
 		compatible = "amlogic,meson6-timer";
-		reg = <0xc1109940 0x14>;
+		reg = <0xc1109940 0x18>;
 		interrupts = <0 10 1>;
 	};
 
@@ -80,36 +80,37 @@
 		wdt: watchdog@c1109900 {
 			compatible = "amlogic,meson6-wdt";
 			reg = <0xc1109900 0x8>;
+			interrupts = <0 0 1>;
 		};
 
 		uart_AO: serial@c81004c0 {
 			compatible = "amlogic,meson-uart";
-			reg = <0xc81004c0 0x14>;
+			reg = <0xc81004c0 0x18>;
 			interrupts = <0 90 1>;
 			clocks = <&clk81>;
 			status = "disabled";
 		};
 
-		uart_A: serial@c81084c0 {
+		uart_A: serial@c11084c0 {
 			compatible = "amlogic,meson-uart";
-			reg = <0xc81084c0 0x14>;
-			interrupts = <0 90 1>;
+			reg = <0xc11084c0 0x18>;
+			interrupts = <0 26 1>;
 			clocks = <&clk81>;
 			status = "disabled";
 		};
 
-		uart_B: serial@c81084dc {
+		uart_B: serial@c11084dc {
 			compatible = "amlogic,meson-uart";
-			reg = <0xc81084dc 0x14>;
-			interrupts = <0 90 1>;
+			reg = <0xc11084dc 0x18>;
+			interrupts = <0 75 1>;
 			clocks = <&clk81>;
 			status = "disabled";
 		};
 
-		uart_C: serial@c8108700 {
+		uart_C: serial@c1108700 {
 			compatible = "amlogic,meson-uart";
-			reg = <0xc8108700 0x14>;
-			interrupts = <0 90 1>;
+			reg = <0xc1108700 0x18>;
+			interrupts = <0 93 1>;
 			clocks = <&clk81>;
 			status = "disabled";
 		};
diff --git a/arch/arm/boot/dts/omap3-evm-37xx.dts b/arch/arm/boot/dts/omap3-evm-37xx.dts
index 16e8ce3..bb339d1 100644
--- a/arch/arm/boot/dts/omap3-evm-37xx.dts
+++ b/arch/arm/boot/dts/omap3-evm-37xx.dts
@@ -13,7 +13,7 @@
 
 / {
 	model = "TI OMAP37XX EVM (TMDSEVM3730)";
-	compatible = "ti,omap3-evm-37xx", "ti,omap36xx";
+	compatible = "ti,omap3-evm-37xx", "ti,omap3630", "ti,omap3";
 
 	memory {
 		device_type = "memory";
diff --git a/arch/arm/boot/dts/ste-hrefv60plus.dtsi b/arch/arm/boot/dts/ste-hrefv60plus.dtsi
index 810cda7..9c2387b 100644
--- a/arch/arm/boot/dts/ste-hrefv60plus.dtsi
+++ b/arch/arm/boot/dts/ste-hrefv60plus.dtsi
@@ -56,7 +56,7 @@
 					/* VMMCI level-shifter enable */
 					default_hrefv60_cfg2 {
 						pins = "GPIO169_D22";
-						ste,config = <&gpio_out_lo>;
+						ste,config = <&gpio_out_hi>;
 					};
 					/* VMMCI level-shifter voltage select */
 					default_hrefv60_cfg3 {
diff --git a/arch/arm/boot/dts/tegra114.dtsi b/arch/arm/boot/dts/tegra114.dtsi
index 9d4f86e..d845bd1 100644
--- a/arch/arm/boot/dts/tegra114.dtsi
+++ b/arch/arm/boot/dts/tegra114.dtsi
@@ -234,7 +234,9 @@
 		gpio-controller;
 		#interrupt-cells = <2>;
 		interrupt-controller;
+		/*
 		gpio-ranges = <&pinmux 0 0 246>;
+		*/
 	};
 
 	apbmisc@70000800 {
diff --git a/arch/arm/boot/dts/tegra124.dtsi b/arch/arm/boot/dts/tegra124.dtsi
index 1e204a6..819e2ae 100644
--- a/arch/arm/boot/dts/tegra124.dtsi
+++ b/arch/arm/boot/dts/tegra124.dtsi
@@ -258,7 +258,9 @@
 		gpio-controller;
 		#interrupt-cells = <2>;
 		interrupt-controller;
+		/*
 		gpio-ranges = <&pinmux 0 0 251>;
+		*/
 	};
 
 	apbdma: dma@0,60020000 {
diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
index e058709..969b82850 100644
--- a/arch/arm/boot/dts/tegra20.dtsi
+++ b/arch/arm/boot/dts/tegra20.dtsi
@@ -244,7 +244,9 @@
 		gpio-controller;
 		#interrupt-cells = <2>;
 		interrupt-controller;
+		/*
 		gpio-ranges = <&pinmux 0 0 224>;
+		*/
 	};
 
 	apbmisc@70000800 {
diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi
index fe04fb5..c6938ad 100644
--- a/arch/arm/boot/dts/tegra30.dtsi
+++ b/arch/arm/boot/dts/tegra30.dtsi
@@ -349,7 +349,9 @@
 		gpio-controller;
 		#interrupt-cells = <2>;
 		interrupt-controller;
+		/*
 		gpio-ranges = <&pinmux 0 0 248>;
+		*/
 	};
 
 	apbmisc@70000800 {
diff --git a/arch/arm/boot/dts/uniphier-ph1-ld6b-ref.dts b/arch/arm/boot/dts/uniphier-ph1-ld6b-ref.dts
index 33963ac..f80f772 100644
--- a/arch/arm/boot/dts/uniphier-ph1-ld6b-ref.dts
+++ b/arch/arm/boot/dts/uniphier-ph1-ld6b-ref.dts
@@ -85,7 +85,7 @@
 };
 
 &ethsc {
-	interrupts = <0 50 4>;
+	interrupts = <0 52 4>;
 };
 
 &serial0 {
diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c
index a66e37e..97b22fa 100644
--- a/arch/arm/kernel/time.c
+++ b/arch/arm/kernel/time.c
@@ -120,6 +120,6 @@
 #ifdef CONFIG_COMMON_CLK
 		of_clk_init(NULL);
 #endif
-		clocksource_of_init();
+		clocksource_probe();
 	}
 }
diff --git a/arch/arm/kvm/Kconfig b/arch/arm/kvm/Kconfig
index 210ecca..356970f 100644
--- a/arch/arm/kvm/Kconfig
+++ b/arch/arm/kvm/Kconfig
@@ -21,6 +21,7 @@
 	depends on MMU && OF
 	select PREEMPT_NOTIFIERS
 	select ANON_INODES
+	select ARM_GIC
 	select HAVE_KVM_CPU_RELAX_INTERCEPT
 	select HAVE_KVM_ARCH_TLB_FLUSH_ALL
 	select KVM_MMIO
diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
index dc017ad..78b2869 100644
--- a/arch/arm/kvm/arm.c
+++ b/arch/arm/kvm/arm.c
@@ -1080,7 +1080,7 @@
 	 */
 	err = kvm_timer_hyp_init();
 	if (err)
-		goto out_free_mappings;
+		goto out_free_context;
 
 #ifndef CONFIG_HOTPLUG_CPU
 	free_boot_hyp_pgd();
diff --git a/arch/arm/mach-exynos/pm_domains.c b/arch/arm/mach-exynos/pm_domains.c
index 4a87e86..7c21760 100644
--- a/arch/arm/mach-exynos/pm_domains.c
+++ b/arch/arm/mach-exynos/pm_domains.c
@@ -200,15 +200,15 @@
 		args.args_count = 0;
 		child_domain = of_genpd_get_from_provider(&args);
 		if (IS_ERR(child_domain))
-			goto next_pd;
+			continue;
 
 		if (of_parse_phandle_with_args(np, "power-domains",
 					 "#power-domain-cells", 0, &args) != 0)
-			goto next_pd;
+			continue;
 
 		parent_domain = of_genpd_get_from_provider(&args);
 		if (IS_ERR(parent_domain))
-			goto next_pd;
+			continue;
 
 		if (pm_genpd_add_subdomain(parent_domain, child_domain))
 			pr_warn("%s failed to add subdomain: %s\n",
@@ -216,8 +216,6 @@
 		else
 			pr_info("%s has as child subdomain: %s.\n",
 				parent_domain->name, child_domain->name);
-next_pd:
-		of_node_put(np);
 	}
 
 	return 0;
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index b3a0dff..33d1460 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -49,6 +49,7 @@
 	select OMAP_INTERCONNECT
 	select OMAP_INTERCONNECT_BARRIER
 	select PM_OPP if PM
+	select ZONE_DMA if ARM_LPAE
 
 config SOC_AM33XX
 	bool "TI AM33XX"
@@ -78,6 +79,7 @@
 	select OMAP_INTERCONNECT
 	select OMAP_INTERCONNECT_BARRIER
 	select PM_OPP if PM
+	select ZONE_DMA if ARM_LPAE
 
 config ARCH_OMAP2PLUS
 	bool
diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
index 6133eaa..fb219a3 100644
--- a/arch/arm/mach-omap2/board-generic.c
+++ b/arch/arm/mach-omap2/board-generic.c
@@ -106,6 +106,7 @@
 MACHINE_END
 
 static const char *const omap36xx_boards_compat[] __initconst = {
+	"ti,omap3630",
 	"ti,omap36xx",
 	NULL,
 };
@@ -243,6 +244,9 @@
 };
 
 DT_MACHINE_START(OMAP5_DT, "Generic OMAP5 (Flattened Device Tree)")
+#if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
+	.dma_zone_size	= SZ_2G,
+#endif
 	.reserve	= omap_reserve,
 	.smp		= smp_ops(omap4_smp_ops),
 	.map_io		= omap5_map_io,
@@ -288,6 +292,9 @@
 };
 
 DT_MACHINE_START(DRA74X_DT, "Generic DRA74X (Flattened Device Tree)")
+#if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
+	.dma_zone_size	= SZ_2G,
+#endif
 	.reserve	= omap_reserve,
 	.smp		= smp_ops(omap4_smp_ops),
 	.map_io		= dra7xx_map_io,
@@ -308,6 +315,9 @@
 };
 
 DT_MACHINE_START(DRA72X_DT, "Generic DRA72X (Flattened Device Tree)")
+#if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
+	.dma_zone_size	= SZ_2G,
+#endif
 	.reserve	= omap_reserve,
 	.map_io		= dra7xx_map_io,
 	.init_early	= dra7xx_init_early,
diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c
index ea56397..1dfe346 100644
--- a/arch/arm/mach-omap2/pdata-quirks.c
+++ b/arch/arm/mach-omap2/pdata-quirks.c
@@ -559,7 +559,14 @@
 
 void __init pdata_quirks_init(const struct of_device_id *omap_dt_match_table)
 {
-	omap_sdrc_init(NULL, NULL);
+	/*
+	 * We still need this for omap2420 and omap3 PM to work, others are
+	 * using drivers/misc/sram.c already.
+	 */
+	if (of_machine_is_compatible("ti,omap2420") ||
+	    of_machine_is_compatible("ti,omap3"))
+		omap_sdrc_init(NULL, NULL);
+
 	pdata_quirks_check(auxdata_quirks);
 	of_platform_populate(NULL, omap_dt_match_table,
 			     omap_auxdata_lookup, NULL);
diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c
index a556551..bef4183 100644
--- a/arch/arm/mach-omap2/timer.c
+++ b/arch/arm/mach-omap2/timer.c
@@ -647,7 +647,7 @@
 void __init omap4_local_timer_init(void)
 {
 	omap4_sync32k_timer_init();
-	clocksource_of_init();
+	clocksource_probe();
 }
 #else
 void __init omap4_local_timer_init(void)
@@ -663,7 +663,7 @@
 	omap4_sync32k_timer_init();
 	realtime_counter_init();
 
-	clocksource_of_init();
+	clocksource_probe();
 }
 #endif /* CONFIG_SOC_OMAP5 || CONFIG_SOC_DRA7XX */
 
diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
index 06005d3..20ce2d3 100644
--- a/arch/arm/mach-pxa/pxa3xx.c
+++ b/arch/arm/mach-pxa/pxa3xx.c
@@ -42,10 +42,6 @@
 #define PECR_IS(n)	((1 << ((n) * 2)) << 29)
 
 extern void __init pxa_dt_irq_init(int (*fn)(struct irq_data *, unsigned int));
-#ifdef CONFIG_PM
-
-#define ISRAM_START	0x5c000000
-#define ISRAM_SIZE	SZ_256K
 
 /*
  * NAND NFC: DFI bus arbitration subset
@@ -54,6 +50,11 @@
 #define NDCR_ND_ARB_EN		(1 << 12)
 #define NDCR_ND_ARB_CNTL	(1 << 19)
 
+#ifdef CONFIG_PM
+
+#define ISRAM_START	0x5c000000
+#define ISRAM_SIZE	SZ_256K
+
 static void __iomem *sram;
 static unsigned long wakeup_src;
 
diff --git a/arch/arm/mach-rockchip/rockchip.c b/arch/arm/mach-rockchip/rockchip.c
index b6cf3b4..251c7b9 100644
--- a/arch/arm/mach-rockchip/rockchip.c
+++ b/arch/arm/mach-rockchip/rockchip.c
@@ -67,7 +67,7 @@
 	}
 
 	of_clk_init(NULL);
-	clocksource_of_init();
+	clocksource_probe();
 }
 
 static void __init rockchip_dt_init(void)
diff --git a/arch/arm/mach-shmobile/setup-r8a7779.c b/arch/arm/mach-shmobile/setup-r8a7779.c
index 6bfa640..1e572a9 100644
--- a/arch/arm/mach-shmobile/setup-r8a7779.c
+++ b/arch/arm/mach-shmobile/setup-r8a7779.c
@@ -97,7 +97,7 @@
 static void __init r8a7779_init_time(void)
 {
 	r8a7779_clocks_init(r8a7779_read_mode_pins());
-	clocksource_of_init();
+	clocksource_probe();
 }
 
 static const char *const r8a7779_compat_dt[] __initconst = {
diff --git a/arch/arm/mach-shmobile/setup-rcar-gen2.c b/arch/arm/mach-shmobile/setup-rcar-gen2.c
index aa33392..9eccde3 100644
--- a/arch/arm/mach-shmobile/setup-rcar-gen2.c
+++ b/arch/arm/mach-shmobile/setup-rcar-gen2.c
@@ -128,7 +128,7 @@
 #endif /* CONFIG_ARM_ARCH_TIMER */
 
 	rcar_gen2_clocks_init(mode);
-	clocksource_of_init();
+	clocksource_probe();
 }
 
 struct memory_reserve_config {
diff --git a/arch/arm/mach-spear/spear13xx.c b/arch/arm/mach-spear/spear13xx.c
index b7afce6..ca2f6a8 100644
--- a/arch/arm/mach-spear/spear13xx.c
+++ b/arch/arm/mach-spear/spear13xx.c
@@ -124,5 +124,5 @@
 	clk_put(pclk);
 
 	spear_setup_of_timer();
-	clocksource_of_init();
+	clocksource_probe();
 }
diff --git a/arch/arm/mach-sunxi/sunxi.c b/arch/arm/mach-sunxi/sunxi.c
index 65bab28..223c9e9 100644
--- a/arch/arm/mach-sunxi/sunxi.c
+++ b/arch/arm/mach-sunxi/sunxi.c
@@ -46,7 +46,7 @@
 	of_clk_init(NULL);
 	if (IS_ENABLED(CONFIG_RESET_CONTROLLER))
 		sun6i_reset_init();
-	clocksource_of_init();
+	clocksource_probe();
 }
 
 DT_MACHINE_START(SUN6I_DT, "Allwinner sun6i (A31) Family")
diff --git a/arch/arm/mach-u300/core.c b/arch/arm/mach-u300/core.c
index 35670b1..546338b 100644
--- a/arch/arm/mach-u300/core.c
+++ b/arch/arm/mach-u300/core.c
@@ -408,7 +408,7 @@
 DT_MACHINE_START(U300_DT, "U300 S335/B335 (Device Tree)")
 	.map_io		= u300_map_io,
 	.init_irq	= u300_init_irq_dt,
-	.init_time	= clocksource_of_init,
+	.init_time	= clocksource_probe,
 	.init_machine	= u300_init_machine_dt,
 	.restart	= u300_restart,
 	.dt_compat      = u300_board_compat,
diff --git a/arch/arm/mach-ux500/timer.c b/arch/arm/mach-ux500/timer.c
index ff28d8a..8d2d233 100644
--- a/arch/arm/mach-ux500/timer.c
+++ b/arch/arm/mach-ux500/timer.c
@@ -44,5 +44,5 @@
 
 dt_fail:
 	clksrc_dbx500_prcmu_init(prcmu_timer_base);
-	clocksource_of_init();
+	clocksource_probe();
 }
diff --git a/arch/arm/mach-zynq/common.c b/arch/arm/mach-zynq/common.c
index 5a6e4e2..6f39d03 100644
--- a/arch/arm/mach-zynq/common.c
+++ b/arch/arm/mach-zynq/common.c
@@ -154,7 +154,7 @@
 
 	zynq_clock_init();
 	of_clk_init(NULL);
-	clocksource_of_init();
+	clocksource_probe();
 }
 
 static struct map_desc zynq_cortex_a9_scu_map __initdata = {
diff --git a/arch/arm/net/bpf_jit_32.c b/arch/arm/net/bpf_jit_32.c
index 876060b..b8efb8c 100644
--- a/arch/arm/net/bpf_jit_32.c
+++ b/arch/arm/net/bpf_jit_32.c
@@ -614,6 +614,7 @@
 		case BPF_LD | BPF_B | BPF_IND:
 			load_order = 0;
 load_ind:
+			update_on_xread(ctx);
 			OP_IMM3(ARM_ADD, r_off, r_X, k, ctx);
 			goto load_common;
 		case BPF_LDX | BPF_IMM:
diff --git a/arch/arm/plat-orion/common.c b/arch/arm/plat-orion/common.c
index 2235081..8861c36 100644
--- a/arch/arm/plat-orion/common.c
+++ b/arch/arm/plat-orion/common.c
@@ -495,7 +495,7 @@
 
 	d->netdev = &orion_ge00.dev;
 	for (i = 0; i < d->nr_chips; i++)
-		d->chip[i].host_dev = &orion_ge00_shared.dev;
+		d->chip[i].host_dev = &orion_ge_mvmdio.dev;
 	orion_switch_device.dev.platform_data = d;
 
 	platform_device_register(&orion_switch_device);
diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
index f9914d7..d10b5d4 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -42,7 +42,7 @@
 CHECKFLAGS	+= -D__aarch64__
 
 ifeq ($(CONFIG_ARM64_ERRATUM_843419), y)
-CFLAGS_MODULE	+= -mcmodel=large
+KBUILD_CFLAGS_MODULE	+= -mcmodel=large
 endif
 
 # Default value
diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h
index 208cec0..6894205 100644
--- a/arch/arm64/include/asm/acpi.h
+++ b/arch/arm64/include/asm/acpi.h
@@ -12,7 +12,6 @@
 #ifndef _ASM_ACPI_H
 #define _ASM_ACPI_H
 
-#include <linux/irqchip/arm-gic-acpi.h>
 #include <linux/mm.h>
 #include <linux/psci.h>
 
diff --git a/arch/arm64/include/asm/irq.h b/arch/arm64/include/asm/irq.h
index bbb251b1..94c5367 100644
--- a/arch/arm64/include/asm/irq.h
+++ b/arch/arm64/include/asm/irq.h
@@ -1,8 +1,6 @@
 #ifndef __ASM_IRQ_H
 #define __ASM_IRQ_H
 
-#include <linux/irqchip/arm-gic-acpi.h>
-
 #include <asm-generic/irq.h>
 
 struct pt_regs;
@@ -10,15 +8,4 @@
 extern void migrate_irqs(void);
 extern void set_handle_irq(void (*handle_irq)(struct pt_regs *));
 
-static inline void acpi_irq_init(void)
-{
-	/*
-	 * Hardcode ACPI IRQ chip initialization to GICv2 for now.
-	 * Proper irqchip infrastructure will be implemented along with
-	 * incoming  GICv2m|GICv3|ITS bits.
-	 */
-	acpi_gic_init();
-}
-#define acpi_irq_init acpi_irq_init
-
 #endif
diff --git a/arch/arm64/include/asm/unistd.h b/arch/arm64/include/asm/unistd.h
index 3bc498c..41e58fe 100644
--- a/arch/arm64/include/asm/unistd.h
+++ b/arch/arm64/include/asm/unistd.h
@@ -44,7 +44,7 @@
 #define __ARM_NR_compat_cacheflush	(__ARM_NR_COMPAT_BASE+2)
 #define __ARM_NR_compat_set_tls		(__ARM_NR_COMPAT_BASE+5)
 
-#define __NR_compat_syscalls		388
+#define __NR_compat_syscalls		390
 #endif
 
 #define __ARCH_WANT_SYS_CLONE
diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h
index cef934a..5b925b7 100644
--- a/arch/arm64/include/asm/unistd32.h
+++ b/arch/arm64/include/asm/unistd32.h
@@ -797,3 +797,12 @@
 __SYSCALL(__NR_bpf, sys_bpf)
 #define __NR_execveat 387
 __SYSCALL(__NR_execveat, compat_sys_execveat)
+#define __NR_userfaultfd 388
+__SYSCALL(__NR_userfaultfd, sys_userfaultfd)
+#define __NR_membarrier 389
+__SYSCALL(__NR_membarrier, sys_membarrier)
+
+/*
+ * Please add new compat syscalls above this comment and update
+ * __NR_compat_syscalls in asm/unistd.h.
+ */
diff --git a/arch/arm64/include/uapi/asm/signal.h b/arch/arm64/include/uapi/asm/signal.h
index 8d1e723..991bf5d 100644
--- a/arch/arm64/include/uapi/asm/signal.h
+++ b/arch/arm64/include/uapi/asm/signal.h
@@ -19,6 +19,9 @@
 /* Required for AArch32 compatibility. */
 #define SA_RESTORER	0x04000000
 
+#define MINSIGSTKSZ 5120
+#define SIGSTKSZ    16384
+
 #include <asm-generic/signal.h>
 
 #endif
diff --git a/arch/arm64/kernel/acpi.c b/arch/arm64/kernel/acpi.c
index 19de753..d6463bb 100644
--- a/arch/arm64/kernel/acpi.c
+++ b/arch/arm64/kernel/acpi.c
@@ -205,28 +205,3 @@
 			disable_acpi();
 	}
 }
-
-void __init acpi_gic_init(void)
-{
-	struct acpi_table_header *table;
-	acpi_status status;
-	acpi_size tbl_size;
-	int err;
-
-	if (acpi_disabled)
-		return;
-
-	status = acpi_get_table_with_size(ACPI_SIG_MADT, 0, &table, &tbl_size);
-	if (ACPI_FAILURE(status)) {
-		const char *msg = acpi_format_exception(status);
-
-		pr_err("Failed to get MADT table, %s\n", msg);
-		return;
-	}
-
-	err = gic_v2_acpi_init(table);
-	if (err)
-		pr_err("Failed to initialize GIC IRQ controller");
-
-	early_acpi_os_unmap_memory((char *)table, tbl_size);
-}
diff --git a/arch/arm64/kernel/time.c b/arch/arm64/kernel/time.c
index 149151f..13339b6 100644
--- a/arch/arm64/kernel/time.c
+++ b/arch/arm64/kernel/time.c
@@ -67,16 +67,10 @@
 	u32 arch_timer_rate;
 
 	of_clk_init(NULL);
-	clocksource_of_init();
+	clocksource_probe();
 
 	tick_setup_hrtimer_broadcast();
 
-	/*
-	 * Since ACPI or FDT will only one be available in the system,
-	 * we can use acpi_generic_timer_init() here safely
-	 */
-	acpi_generic_timer_init();
-
 	arch_timer_rate = arch_timer_get_rate();
 	if (!arch_timer_rate)
 		panic("Unable to initialise architected timer.\n");
diff --git a/arch/ia64/include/asm/pci.h b/arch/ia64/include/asm/pci.h
index 36d2c1e3..07039d1 100644
--- a/arch/ia64/include/asm/pci.h
+++ b/arch/ia64/include/asm/pci.h
@@ -64,11 +64,6 @@
 #define pci_legacy_read platform_pci_legacy_read
 #define pci_legacy_write platform_pci_legacy_write
 
-struct iospace_resource {
-	struct list_head list;
-	struct resource res;
-};
-
 struct pci_controller {
 	struct acpi_device *companion;
 	void *iommu;
diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
index 7cc3be9..8f6ac2f 100644
--- a/arch/ia64/pci/pci.c
+++ b/arch/ia64/pci/pci.c
@@ -115,33 +115,13 @@
 	.write = pci_write,
 };
 
-/* Called by ACPI when it finds a new root bus.  */
-
-static struct pci_controller *alloc_pci_controller(int seg)
-{
-	struct pci_controller *controller;
-
-	controller = kzalloc(sizeof(*controller), GFP_KERNEL);
-	if (!controller)
-		return NULL;
-
-	controller->segment = seg;
-	return controller;
-}
-
 struct pci_root_info {
-	struct acpi_device *bridge;
-	struct pci_controller *controller;
-	struct list_head resources;
-	struct resource *res;
-	resource_size_t *res_offset;
-	unsigned int res_num;
+	struct acpi_pci_root_info common;
+	struct pci_controller controller;
 	struct list_head io_resources;
-	char *name;
 };
 
-static unsigned int
-new_space (u64 phys_base, int sparse)
+static unsigned int new_space(u64 phys_base, int sparse)
 {
 	u64 mmio_base;
 	int i;
@@ -168,39 +148,36 @@
 	return i;
 }
 
-static u64 add_io_space(struct pci_root_info *info,
-			struct acpi_resource_address64 *addr)
+static int add_io_space(struct device *dev, struct pci_root_info *info,
+			struct resource_entry *entry)
 {
-	struct iospace_resource *iospace;
-	struct resource *resource;
+	struct resource_entry *iospace;
+	struct resource *resource, *res = entry->res;
 	char *name;
 	unsigned long base, min, max, base_port;
 	unsigned int sparse = 0, space_nr, len;
 
-	len = strlen(info->name) + 32;
-	iospace = kzalloc(sizeof(*iospace) + len, GFP_KERNEL);
+	len = strlen(info->common.name) + 32;
+	iospace = resource_list_create_entry(NULL, len);
 	if (!iospace) {
-		dev_err(&info->bridge->dev,
-				"PCI: No memory for %s I/O port space\n",
-				info->name);
-		goto out;
+		dev_err(dev, "PCI: No memory for %s I/O port space\n",
+			info->common.name);
+		return -ENOMEM;
 	}
 
-	name = (char *)(iospace + 1);
-
-	min = addr->address.minimum;
-	max = min + addr->address.address_length - 1;
-	if (addr->info.io.translation_type == ACPI_SPARSE_TRANSLATION)
+	if (res->flags & IORESOURCE_IO_SPARSE)
 		sparse = 1;
-
-	space_nr = new_space(addr->address.translation_offset, sparse);
+	space_nr = new_space(entry->offset, sparse);
 	if (space_nr == ~0)
 		goto free_resource;
 
+	name = (char *)(iospace + 1);
+	min = res->start - entry->offset;
+	max = res->end - entry->offset;
 	base = __pa(io_space[space_nr].mmio_base);
 	base_port = IO_SPACE_BASE(space_nr);
-	snprintf(name, len, "%s I/O Ports %08lx-%08lx", info->name,
-		base_port + min, base_port + max);
+	snprintf(name, len, "%s I/O Ports %08lx-%08lx", info->common.name,
+		 base_port + min, base_port + max);
 
 	/*
 	 * The SDM guarantees the legacy 0-64K space is sparse, but if the
@@ -210,270 +187,125 @@
 	if (space_nr == 0)
 		sparse = 1;
 
-	resource = &iospace->res;
+	resource = iospace->res;
 	resource->name  = name;
 	resource->flags = IORESOURCE_MEM;
 	resource->start = base + (sparse ? IO_SPACE_SPARSE_ENCODING(min) : min);
 	resource->end   = base + (sparse ? IO_SPACE_SPARSE_ENCODING(max) : max);
 	if (insert_resource(&iomem_resource, resource)) {
-		dev_err(&info->bridge->dev,
-				"can't allocate host bridge io space resource  %pR\n",
-				resource);
+		dev_err(dev,
+			"can't allocate host bridge io space resource  %pR\n",
+			resource);
 		goto free_resource;
 	}
 
-	list_add_tail(&iospace->list, &info->io_resources);
-	return base_port;
+	entry->offset = base_port;
+	res->start = min + base_port;
+	res->end = max + base_port;
+	resource_list_add_tail(iospace, &info->io_resources);
+
+	return 0;
 
 free_resource:
-	kfree(iospace);
-out:
-	return ~0;
+	resource_list_free_entry(iospace);
+	return -ENOSPC;
 }
 
-static acpi_status resource_to_window(struct acpi_resource *resource,
-				      struct acpi_resource_address64 *addr)
+/*
+ * An IO port or MMIO resource assigned to a PCI host bridge may be
+ * consumed by the host bridge itself or available to its child
+ * bus/devices. The ACPI specification defines a bit (Producer/Consumer)
+ * to tell whether the resource is consumed by the host bridge itself,
+ * but firmware hasn't used that bit consistently, so we can't rely on it.
+ *
+ * On x86 and IA64 platforms, all IO port and MMIO resources are assumed
+ * to be available to child bus/devices except one special case:
+ *     IO port [0xCF8-0xCFF] is consumed by the host bridge itself
+ *     to access PCI configuration space.
+ *
+ * So explicitly filter out PCI CFG IO ports[0xCF8-0xCFF].
+ */
+static bool resource_is_pcicfg_ioport(struct resource *res)
 {
-	acpi_status status;
-
-	/*
-	 * We're only interested in _CRS descriptors that are
-	 *	- address space descriptors for memory or I/O space
-	 *	- non-zero size
-	 */
-	status = acpi_resource_to_address64(resource, addr);
-	if (ACPI_SUCCESS(status) &&
-	    (addr->resource_type == ACPI_MEMORY_RANGE ||
-	     addr->resource_type == ACPI_IO_RANGE) &&
-	    addr->address.address_length)
-		return AE_OK;
-
-	return AE_ERROR;
+	return (res->flags & IORESOURCE_IO) &&
+		res->start == 0xCF8 && res->end == 0xCFF;
 }
 
-static acpi_status count_window(struct acpi_resource *resource, void *data)
+static int pci_acpi_root_prepare_resources(struct acpi_pci_root_info *ci)
 {
-	unsigned int *windows = (unsigned int *) data;
-	struct acpi_resource_address64 addr;
-	acpi_status status;
-
-	status = resource_to_window(resource, &addr);
-	if (ACPI_SUCCESS(status))
-		(*windows)++;
-
-	return AE_OK;
-}
-
-static acpi_status add_window(struct acpi_resource *res, void *data)
-{
-	struct pci_root_info *info = data;
-	struct resource *resource;
-	struct acpi_resource_address64 addr;
-	acpi_status status;
-	unsigned long flags, offset = 0;
-	struct resource *root;
-
-	/* Return AE_OK for non-window resources to keep scanning for more */
-	status = resource_to_window(res, &addr);
-	if (!ACPI_SUCCESS(status))
-		return AE_OK;
-
-	if (addr.resource_type == ACPI_MEMORY_RANGE) {
-		flags = IORESOURCE_MEM;
-		root = &iomem_resource;
-		offset = addr.address.translation_offset;
-	} else if (addr.resource_type == ACPI_IO_RANGE) {
-		flags = IORESOURCE_IO;
-		root = &ioport_resource;
-		offset = add_io_space(info, &addr);
-		if (offset == ~0)
-			return AE_OK;
-	} else
-		return AE_OK;
-
-	resource = &info->res[info->res_num];
-	resource->name = info->name;
-	resource->flags = flags;
-	resource->start = addr.address.minimum + offset;
-	resource->end = resource->start + addr.address.address_length - 1;
-	info->res_offset[info->res_num] = offset;
-
-	if (insert_resource(root, resource)) {
-		dev_err(&info->bridge->dev,
-			"can't allocate host bridge window %pR\n",
-			resource);
-	} else {
-		if (offset)
-			dev_info(&info->bridge->dev, "host bridge window %pR "
-				 "(PCI address [%#llx-%#llx])\n",
-				 resource,
-				 resource->start - offset,
-				 resource->end - offset);
-		else
-			dev_info(&info->bridge->dev,
-				 "host bridge window %pR\n", resource);
-	}
-	/* HP's firmware has a hack to work around a Windows bug.
-	 * Ignore these tiny memory ranges */
-	if (!((resource->flags & IORESOURCE_MEM) &&
-	      (resource->end - resource->start < 16)))
-		pci_add_resource_offset(&info->resources, resource,
-					info->res_offset[info->res_num]);
-
-	info->res_num++;
-	return AE_OK;
-}
-
-static void free_pci_root_info_res(struct pci_root_info *info)
-{
-	struct iospace_resource *iospace, *tmp;
-
-	list_for_each_entry_safe(iospace, tmp, &info->io_resources, list)
-		kfree(iospace);
-
-	kfree(info->name);
-	kfree(info->res);
-	info->res = NULL;
-	kfree(info->res_offset);
-	info->res_offset = NULL;
-	info->res_num = 0;
-	kfree(info->controller);
-	info->controller = NULL;
-}
-
-static void __release_pci_root_info(struct pci_root_info *info)
-{
-	int i;
+	struct device *dev = &ci->bridge->dev;
+	struct pci_root_info *info;
 	struct resource *res;
-	struct iospace_resource *iospace;
+	struct resource_entry *entry, *tmp;
+	int status;
 
-	list_for_each_entry(iospace, &info->io_resources, list)
-		release_resource(&iospace->res);
-
-	for (i = 0; i < info->res_num; i++) {
-		res = &info->res[i];
-
-		if (!res->parent)
-			continue;
-
-		if (!(res->flags & (IORESOURCE_MEM | IORESOURCE_IO)))
-			continue;
-
-		release_resource(res);
+	status = acpi_pci_probe_root_resources(ci);
+	if (status > 0) {
+		info = container_of(ci, struct pci_root_info, common);
+		resource_list_for_each_entry_safe(entry, tmp, &ci->resources) {
+			res = entry->res;
+			if (res->flags & IORESOURCE_MEM) {
+				/*
+				 * HP's firmware has a hack to work around a
+				 * Windows bug. Ignore these tiny memory ranges.
+				 */
+				if (resource_size(res) <= 16) {
+					resource_list_del(entry);
+					insert_resource(&iomem_resource,
+							entry->res);
+					resource_list_add_tail(entry,
+							&info->io_resources);
+				}
+			} else if (res->flags & IORESOURCE_IO) {
+				if (resource_is_pcicfg_ioport(entry->res))
+					resource_list_destroy_entry(entry);
+				else if (add_io_space(dev, info, entry))
+					resource_list_destroy_entry(entry);
+			}
+		}
 	}
 
-	free_pci_root_info_res(info);
+	return status;
+}
+
+static void pci_acpi_root_release_info(struct acpi_pci_root_info *ci)
+{
+	struct pci_root_info *info;
+	struct resource_entry *entry, *tmp;
+
+	info = container_of(ci, struct pci_root_info, common);
+	resource_list_for_each_entry_safe(entry, tmp, &info->io_resources) {
+		release_resource(entry->res);
+		resource_list_destroy_entry(entry);
+	}
 	kfree(info);
 }
 
-static void release_pci_root_info(struct pci_host_bridge *bridge)
-{
-	struct pci_root_info *info = bridge->release_data;
-
-	__release_pci_root_info(info);
-}
-
-static int
-probe_pci_root_info(struct pci_root_info *info, struct acpi_device *device,
-		int busnum, int domain)
-{
-	char *name;
-
-	name = kmalloc(16, GFP_KERNEL);
-	if (!name)
-		return -ENOMEM;
-
-	sprintf(name, "PCI Bus %04x:%02x", domain, busnum);
-	info->bridge = device;
-	info->name = name;
-
-	acpi_walk_resources(device->handle, METHOD_NAME__CRS, count_window,
-			&info->res_num);
-	if (info->res_num) {
-		info->res =
-			kzalloc_node(sizeof(*info->res) * info->res_num,
-				     GFP_KERNEL, info->controller->node);
-		if (!info->res) {
-			kfree(name);
-			return -ENOMEM;
-		}
-
-		info->res_offset =
-			kzalloc_node(sizeof(*info->res_offset) * info->res_num,
-					GFP_KERNEL, info->controller->node);
-		if (!info->res_offset) {
-			kfree(name);
-			kfree(info->res);
-			info->res = NULL;
-			return -ENOMEM;
-		}
-
-		info->res_num = 0;
-		acpi_walk_resources(device->handle, METHOD_NAME__CRS,
-			add_window, info);
-	} else
-		kfree(name);
-
-	return 0;
-}
+static struct acpi_pci_root_ops pci_acpi_root_ops = {
+	.pci_ops = &pci_root_ops,
+	.release_info = pci_acpi_root_release_info,
+	.prepare_resources = pci_acpi_root_prepare_resources,
+};
 
 struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
 {
 	struct acpi_device *device = root->device;
-	int domain = root->segment;
-	int bus = root->secondary.start;
-	struct pci_controller *controller;
-	struct pci_root_info *info = NULL;
-	int busnum = root->secondary.start;
-	struct pci_bus *pbus;
-	int ret;
-
-	controller = alloc_pci_controller(domain);
-	if (!controller)
-		return NULL;
-
-	controller->companion = device;
-	controller->node = acpi_get_node(device->handle);
+	struct pci_root_info *info;
 
 	info = kzalloc(sizeof(*info), GFP_KERNEL);
 	if (!info) {
 		dev_err(&device->dev,
-				"pci_bus %04x:%02x: ignored (out of memory)\n",
-				domain, busnum);
-		kfree(controller);
+			"pci_bus %04x:%02x: ignored (out of memory)\n",
+			root->segment, (int)root->secondary.start);
 		return NULL;
 	}
 
-	info->controller = controller;
+	info->controller.segment = root->segment;
+	info->controller.companion = device;
+	info->controller.node = acpi_get_node(device->handle);
 	INIT_LIST_HEAD(&info->io_resources);
-	INIT_LIST_HEAD(&info->resources);
-
-	ret = probe_pci_root_info(info, device, busnum, domain);
-	if (ret) {
-		kfree(info->controller);
-		kfree(info);
-		return NULL;
-	}
-	/* insert busn resource at first */
-	pci_add_resource(&info->resources, &root->secondary);
-	/*
-	 * See arch/x86/pci/acpi.c.
-	 * The desired pci bus might already be scanned in a quirk. We
-	 * should handle the case here, but it appears that IA64 hasn't
-	 * such quirk. So we just ignore the case now.
-	 */
-	pbus = pci_create_root_bus(NULL, bus, &pci_root_ops, controller,
-				   &info->resources);
-	if (!pbus) {
-		pci_free_resource_list(&info->resources);
-		__release_pci_root_info(info);
-		return NULL;
-	}
-
-	pci_set_host_bridge_release(to_pci_host_bridge(pbus->bridge),
-			release_pci_root_info, info);
-	pci_scan_child_bus(pbus);
-	return pbus;
+	return acpi_pci_root_create(root, &pci_acpi_root_ops,
+				    &info->common, &info->controller);
 }
 
 int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge)
diff --git a/arch/microblaze/kernel/setup.c b/arch/microblaze/kernel/setup.c
index ab5b488..89a2a939 100644
--- a/arch/microblaze/kernel/setup.c
+++ b/arch/microblaze/kernel/setup.c
@@ -194,7 +194,7 @@
 {
 	of_clk_init(NULL);
 	setup_cpuinfo_clk();
-	clocksource_of_init();
+	clocksource_probe();
 }
 
 #ifdef CONFIG_DEBUG_FS
diff --git a/arch/mips/pistachio/time.c b/arch/mips/pistachio/time.c
index 8a37734..1022201 100644
--- a/arch/mips/pistachio/time.c
+++ b/arch/mips/pistachio/time.c
@@ -39,7 +39,7 @@
 	struct clk *clk;
 
 	of_clk_init(NULL);
-	clocksource_of_init();
+	clocksource_probe();
 
 	np = of_get_cpu_node(0, NULL);
 	if (!np) {
diff --git a/arch/mips/ralink/clk.c b/arch/mips/ralink/clk.c
index feb5a9b..25c4a61 100644
--- a/arch/mips/ralink/clk.c
+++ b/arch/mips/ralink/clk.c
@@ -75,5 +75,5 @@
 	pr_info("CPU Clock: %ldMHz\n", clk_get_rate(clk) / 1000000);
 	mips_hpt_frequency = clk_get_rate(clk) / 2;
 	clk_put(clk);
-	clocksource_of_init();
+	clocksource_probe();
 }
diff --git a/arch/nios2/kernel/time.c b/arch/nios2/kernel/time.c
index bbc3f91..e835dda 100644
--- a/arch/nios2/kernel/time.c
+++ b/arch/nios2/kernel/time.c
@@ -324,7 +324,7 @@
 	if (count < 2)
 		panic("%d timer is found, it needs 2 timers in system\n", count);
 
-	clocksource_of_init();
+	clocksource_probe();
 }
 
 CLOCKSOURCE_OF_DECLARE(nios2_timer, ALTR_TIMER_COMPATIBLE, nios2_time_init);
diff --git a/arch/powerpc/configs/ppc64_defconfig b/arch/powerpc/configs/ppc64_defconfig
index 6bc0ee4..2c041b5 100644
--- a/arch/powerpc/configs/ppc64_defconfig
+++ b/arch/powerpc/configs/ppc64_defconfig
@@ -111,7 +111,7 @@
 CONFIG_SCSI_QLA_ISCSI=m
 CONFIG_SCSI_LPFC=m
 CONFIG_SCSI_VIRTIO=m
-CONFIG_SCSI_DH=m
+CONFIG_SCSI_DH=y
 CONFIG_SCSI_DH_RDAC=m
 CONFIG_SCSI_DH_ALUA=m
 CONFIG_ATA=y
diff --git a/arch/powerpc/configs/pseries_defconfig b/arch/powerpc/configs/pseries_defconfig
index 7991f37..36871a4 100644
--- a/arch/powerpc/configs/pseries_defconfig
+++ b/arch/powerpc/configs/pseries_defconfig
@@ -114,7 +114,7 @@
 CONFIG_SCSI_QLA_ISCSI=m
 CONFIG_SCSI_LPFC=m
 CONFIG_SCSI_VIRTIO=m
-CONFIG_SCSI_DH=m
+CONFIG_SCSI_DH=y
 CONFIG_SCSI_DH_RDAC=m
 CONFIG_SCSI_DH_ALUA=m
 CONFIG_ATA=y
diff --git a/arch/powerpc/include/asm/cache.h b/arch/powerpc/include/asm/cache.h
index 0dc42c5..5f8229e 100644
--- a/arch/powerpc/include/asm/cache.h
+++ b/arch/powerpc/include/asm/cache.h
@@ -3,7 +3,6 @@
 
 #ifdef __KERNEL__
 
-#include <asm/reg.h>
 
 /* bytes per L1 cache line */
 #if defined(CONFIG_8xx) || defined(CONFIG_403GCX)
@@ -40,12 +39,6 @@
 };
 
 extern struct ppc64_caches ppc64_caches;
-
-static inline void logmpp(u64 x)
-{
-	asm volatile(PPC_LOGMPP(R1) : : "r" (x));
-}
-
 #endif /* __powerpc64__ && ! __ASSEMBLY__ */
 
 #if defined(__ASSEMBLY__)
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index 827a38d..887c259 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -297,8 +297,6 @@
 	u32 arch_compat;
 	ulong pcr;
 	ulong dpdes;		/* doorbell state (POWER8) */
-	void *mpp_buffer; /* Micro Partition Prefetch buffer */
-	bool mpp_buffer_is_valid;
 	ulong conferring_threads;
 };
 
diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h
index cab6753..3f191f5 100644
--- a/arch/powerpc/include/asm/machdep.h
+++ b/arch/powerpc/include/asm/machdep.h
@@ -61,8 +61,13 @@
 					       unsigned long addr,
 					       unsigned char *hpte_slot_array,
 					       int psize, int ssize, int local);
-	/* special for kexec, to be called in real mode, linear mapping is
-	 * destroyed as well */
+	/*
+	 * Special for kexec.
+	 * To be called in real mode with interrupts disabled. No locks are
+	 * taken as such, concurrent access on pre POWER5 hardware could result
+	 * in a deadlock.
+	 * The linear mapping is destroyed as well.
+	 */
 	void		(*hpte_clear_all)(void);
 
 	void __iomem *	(*ioremap)(phys_addr_t addr, unsigned long size,
diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h
index 790f5d1..7ab04fc 100644
--- a/arch/powerpc/include/asm/ppc-opcode.h
+++ b/arch/powerpc/include/asm/ppc-opcode.h
@@ -141,7 +141,6 @@
 #define PPC_INST_ISEL			0x7c00001e
 #define PPC_INST_ISEL_MASK		0xfc00003e
 #define PPC_INST_LDARX			0x7c0000a8
-#define PPC_INST_LOGMPP			0x7c0007e4
 #define PPC_INST_LSWI			0x7c0004aa
 #define PPC_INST_LSWX			0x7c00042a
 #define PPC_INST_LWARX			0x7c000028
@@ -285,20 +284,6 @@
 #define __PPC_EH(eh)	0
 #endif
 
-/* POWER8 Micro Partition Prefetch (MPP) parameters */
-/* Address mask is common for LOGMPP instruction and MPPR SPR */
-#define PPC_MPPE_ADDRESS_MASK 0xffffffffc000ULL
-
-/* Bits 60 and 61 of MPP SPR should be set to one of the following */
-/* Aborting the fetch is indeed setting 00 in the table size bits */
-#define PPC_MPPR_FETCH_ABORT (0x0ULL << 60)
-#define PPC_MPPR_FETCH_WHOLE_TABLE (0x2ULL << 60)
-
-/* Bits 54 and 55 of register for LOGMPP instruction should be set to: */
-#define PPC_LOGMPP_LOG_L2 (0x02ULL << 54)
-#define PPC_LOGMPP_LOG_L2L3 (0x01ULL << 54)
-#define PPC_LOGMPP_LOG_ABORT (0x03ULL << 54)
-
 /* Deal with instructions that older assemblers aren't aware of */
 #define	PPC_DCBAL(a, b)		stringify_in_c(.long PPC_INST_DCBAL | \
 					__PPC_RA(a) | __PPC_RB(b))
@@ -307,8 +292,6 @@
 #define PPC_LDARX(t, a, b, eh)	stringify_in_c(.long PPC_INST_LDARX | \
 					___PPC_RT(t) | ___PPC_RA(a) | \
 					___PPC_RB(b) | __PPC_EH(eh))
-#define PPC_LOGMPP(b)		stringify_in_c(.long PPC_INST_LOGMPP | \
-					__PPC_RB(b))
 #define PPC_LWARX(t, a, b, eh)	stringify_in_c(.long PPC_INST_LWARX | \
 					___PPC_RT(t) | ___PPC_RA(a) | \
 					___PPC_RB(b) | __PPC_EH(eh))
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index aa1cc5f0..a908ada 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -226,7 +226,6 @@
 #define   CTRL_TE	0x00c00000	/* thread enable */
 #define   CTRL_RUNLATCH	0x1
 #define SPRN_DAWR	0xB4
-#define SPRN_MPPR	0xB8	/* Micro Partition Prefetch Register */
 #define SPRN_RPR	0xBA	/* Relative Priority Register */
 #define SPRN_CIABR	0xBB
 #define   CIABR_PRIV		0x3
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index 84bf934..5a753fa 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -1043,6 +1043,9 @@
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
 
+	if (!rtas.entry)
+		return -EINVAL;
+
 	if (copy_from_user(&args, uargs, 3 * sizeof(u32)) != 0)
 		return -EFAULT;
 
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 2280497..9c26c5a 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -36,7 +36,6 @@
 
 #include <asm/reg.h>
 #include <asm/cputable.h>
-#include <asm/cache.h>
 #include <asm/cacheflush.h>
 #include <asm/tlbflush.h>
 #include <asm/uaccess.h>
@@ -75,12 +74,6 @@
 
 static DECLARE_BITMAP(default_enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
 
-#if defined(CONFIG_PPC_64K_PAGES)
-#define MPP_BUFFER_ORDER	0
-#elif defined(CONFIG_PPC_4K_PAGES)
-#define MPP_BUFFER_ORDER	3
-#endif
-
 static int dynamic_mt_modes = 6;
 module_param(dynamic_mt_modes, int, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(dynamic_mt_modes, "Set of allowed dynamic micro-threading modes: 0 (= none), 2, 4, or 6 (= 2 or 4)");
@@ -1455,13 +1448,6 @@
 	vcore->kvm = kvm;
 	INIT_LIST_HEAD(&vcore->preempt_list);
 
-	vcore->mpp_buffer_is_valid = false;
-
-	if (cpu_has_feature(CPU_FTR_ARCH_207S))
-		vcore->mpp_buffer = (void *)__get_free_pages(
-			GFP_KERNEL|__GFP_ZERO,
-			MPP_BUFFER_ORDER);
-
 	return vcore;
 }
 
@@ -1894,33 +1880,6 @@
 	return 1;
 }
 
-static void kvmppc_start_saving_l2_cache(struct kvmppc_vcore *vc)
-{
-	phys_addr_t phy_addr, mpp_addr;
-
-	phy_addr = (phys_addr_t)virt_to_phys(vc->mpp_buffer);
-	mpp_addr = phy_addr & PPC_MPPE_ADDRESS_MASK;
-
-	mtspr(SPRN_MPPR, mpp_addr | PPC_MPPR_FETCH_ABORT);
-	logmpp(mpp_addr | PPC_LOGMPP_LOG_L2);
-
-	vc->mpp_buffer_is_valid = true;
-}
-
-static void kvmppc_start_restoring_l2_cache(const struct kvmppc_vcore *vc)
-{
-	phys_addr_t phy_addr, mpp_addr;
-
-	phy_addr = virt_to_phys(vc->mpp_buffer);
-	mpp_addr = phy_addr & PPC_MPPE_ADDRESS_MASK;
-
-	/* We must abort any in-progress save operations to ensure
-	 * the table is valid so that prefetch engine knows when to
-	 * stop prefetching. */
-	logmpp(mpp_addr | PPC_LOGMPP_LOG_ABORT);
-	mtspr(SPRN_MPPR, mpp_addr | PPC_MPPR_FETCH_WHOLE_TABLE);
-}
-
 /*
  * A list of virtual cores for each physical CPU.
  * These are vcores that could run but their runner VCPU tasks are
@@ -2471,14 +2430,8 @@
 
 	srcu_idx = srcu_read_lock(&vc->kvm->srcu);
 
-	if (vc->mpp_buffer_is_valid)
-		kvmppc_start_restoring_l2_cache(vc);
-
 	__kvmppc_vcore_entry();
 
-	if (vc->mpp_buffer)
-		kvmppc_start_saving_l2_cache(vc);
-
 	srcu_read_unlock(&vc->kvm->srcu, srcu_idx);
 
 	spin_lock(&vc->lock);
@@ -3073,14 +3026,8 @@
 {
 	long int i;
 
-	for (i = 0; i < KVM_MAX_VCORES; ++i) {
-		if (kvm->arch.vcores[i] && kvm->arch.vcores[i]->mpp_buffer) {
-			struct kvmppc_vcore *vc = kvm->arch.vcores[i];
-			free_pages((unsigned long)vc->mpp_buffer,
-				   MPP_BUFFER_ORDER);
-		}
+	for (i = 0; i < KVM_MAX_VCORES; ++i)
 		kfree(kvm->arch.vcores[i]);
-	}
 	kvm->arch.online_vcores = 0;
 }
 
diff --git a/arch/powerpc/mm/hash_native_64.c b/arch/powerpc/mm/hash_native_64.c
index 13befa35..c8822af 100644
--- a/arch/powerpc/mm/hash_native_64.c
+++ b/arch/powerpc/mm/hash_native_64.c
@@ -582,13 +582,21 @@
  * be when they isi), and we are the only one left.  We rely on our kernel
  * mapping being 0xC0's and the hardware ignoring those two real bits.
  *
+ * This must be called with interrupts disabled.
+ *
+ * Taking the native_tlbie_lock is unsafe here due to the possibility of
+ * lockdep being on. On pre POWER5 hardware, not taking the lock could
+ * cause deadlock. POWER5 and newer not taking the lock is fine. This only
+ * gets called during boot before secondary CPUs have come up and during
+ * crashdump and all bets are off anyway.
+ *
  * TODO: add batching support when enabled.  remember, no dynamic memory here,
  * athough there is the control page available...
  */
 static void native_hpte_clear(void)
 {
 	unsigned long vpn = 0;
-	unsigned long slot, slots, flags;
+	unsigned long slot, slots;
 	struct hash_pte *hptep = htab_address;
 	unsigned long hpte_v;
 	unsigned long pteg_count;
@@ -596,13 +604,6 @@
 
 	pteg_count = htab_hash_mask + 1;
 
-	local_irq_save(flags);
-
-	/* we take the tlbie lock and hold it.  Some hardware will
-	 * deadlock if we try to tlbie from two processors at once.
-	 */
-	raw_spin_lock(&native_tlbie_lock);
-
 	slots = pteg_count * HPTES_PER_GROUP;
 
 	for (slot = 0; slot < slots; slot++, hptep++) {
@@ -614,8 +615,8 @@
 		hpte_v = be64_to_cpu(hptep->v);
 
 		/*
-		 * Call __tlbie() here rather than tlbie() since we
-		 * already hold the native_tlbie_lock.
+		 * Call __tlbie() here rather than tlbie() since we can't take the
+		 * native_tlbie_lock.
 		 */
 		if (hpte_v & HPTE_V_VALID) {
 			hpte_decode(hptep, slot, &psize, &apsize, &ssize, &vpn);
@@ -625,8 +626,6 @@
 	}
 
 	asm volatile("eieio; tlbsync; ptesync":::"memory");
-	raw_spin_unlock(&native_tlbie_lock);
-	local_irq_restore(flags);
 }
 
 /*
diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index 230f3a7..4296d55 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -487,9 +487,12 @@
 	 *    PRD component would have already got notified about this
 	 *    error through other channels.
 	 *
-	 * In any case, let us just fall through. We anyway heading
-	 * down to panic path.
+	 * If hardware marked this as an unrecoverable MCE, we are
+	 * going to panic anyway. Even if it didn't, it's not safe to
+	 * continue at this point, so we should explicitly panic.
 	 */
+
+	panic("PowerNV Unrecovered Machine Check");
 	return 0;
 }
 
diff --git a/arch/powerpc/platforms/powernv/smp.c b/arch/powerpc/platforms/powernv/smp.c
index 8f70ba6..ca26483 100644
--- a/arch/powerpc/platforms/powernv/smp.c
+++ b/arch/powerpc/platforms/powernv/smp.c
@@ -171,7 +171,26 @@
 	 * so clear LPCR:PECE1. We keep PECE2 enabled.
 	 */
 	mtspr(SPRN_LPCR, mfspr(SPRN_LPCR) & ~(u64)LPCR_PECE1);
+
+	/*
+	 * Hard-disable interrupts, and then clear irq_happened flags
+	 * that we can safely ignore while off-line, since they
+	 * are for things for which we do no processing when off-line
+	 * (or in the case of HMI, all the processing we need to do
+	 * is done in lower-level real-mode code).
+	 */
+	hard_irq_disable();
+	local_paca->irq_happened &= ~(PACA_IRQ_DEC | PACA_IRQ_HMI);
+
 	while (!generic_check_cpu_restart(cpu)) {
+		/*
+		 * Clear IPI flag, since we don't handle IPIs while
+		 * offline, except for those when changing micro-threading
+		 * mode, which are handled explicitly below, and those
+		 * for coming online, which are handled via
+		 * generic_check_cpu_restart() calls.
+		 */
+		kvmppc_set_host_ipi(cpu, 0);
 
 		ppc64_runlatch_off();
 
@@ -196,20 +215,20 @@
 		 * having finished executing in a KVM guest, then srr1
 		 * contains 0.
 		 */
-		if ((srr1 & wmask) == SRR1_WAKEEE) {
+		if (((srr1 & wmask) == SRR1_WAKEEE) ||
+		    (local_paca->irq_happened & PACA_IRQ_EE)) {
 			icp_native_flush_interrupt();
-			local_paca->irq_happened &= PACA_IRQ_HARD_DIS;
-			smp_mb();
 		} else if ((srr1 & wmask) == SRR1_WAKEHDBELL) {
 			unsigned long msg = PPC_DBELL_TYPE(PPC_DBELL_SERVER);
 			asm volatile(PPC_MSGCLR(%0) : : "r" (msg));
-			kvmppc_set_host_ipi(cpu, 0);
 		}
+		local_paca->irq_happened &= ~(PACA_IRQ_EE | PACA_IRQ_DBELL);
+		smp_mb();
 
 		if (cpu_core_split_required())
 			continue;
 
-		if (!generic_check_cpu_restart(cpu))
+		if (srr1 && !generic_check_cpu_restart(cpu))
 			DBG("CPU%d Unexpected exit while offline !\n", cpu);
 	}
 	mtspr(SPRN_LPCR, mfspr(SPRN_LPCR) | LPCR_PECE1);
diff --git a/arch/powerpc/platforms/ps3/os-area.c b/arch/powerpc/platforms/ps3/os-area.c
index 0978713..3db53e8 100644
--- a/arch/powerpc/platforms/ps3/os-area.c
+++ b/arch/powerpc/platforms/ps3/os-area.c
@@ -194,11 +194,6 @@
 	.key = OS_AREA_DB_KEY_RTC_DIFF
 };
 
-static const struct os_area_db_id os_area_db_id_video_mode = {
-	.owner = OS_AREA_DB_OWNER_LINUX,
-	.key = OS_AREA_DB_KEY_VIDEO_MODE
-};
-
 #define SECONDS_FROM_1970_TO_2000 946684800LL
 
 /**
diff --git a/arch/sh/include/asm/page.h b/arch/sh/include/asm/page.h
index fe20d14a..ceb5201 100644
--- a/arch/sh/include/asm/page.h
+++ b/arch/sh/include/asm/page.h
@@ -59,6 +59,7 @@
 
 #define clear_page(page)	memset((void *)(page), 0, PAGE_SIZE)
 extern void copy_page(void *to, void *from);
+#define copy_user_page(to, from, vaddr, pg)  __copy_user(to, from, PAGE_SIZE)
 
 struct page;
 struct vm_area_struct;
diff --git a/arch/sparc/crypto/aes_glue.c b/arch/sparc/crypto/aes_glue.c
index 2e48eb8..c90930d 100644
--- a/arch/sparc/crypto/aes_glue.c
+++ b/arch/sparc/crypto/aes_glue.c
@@ -433,6 +433,7 @@
 		.blkcipher = {
 			.min_keysize	= AES_MIN_KEY_SIZE,
 			.max_keysize	= AES_MAX_KEY_SIZE,
+			.ivsize		= AES_BLOCK_SIZE,
 			.setkey		= aes_set_key,
 			.encrypt	= cbc_encrypt,
 			.decrypt	= cbc_decrypt,
@@ -452,6 +453,7 @@
 		.blkcipher = {
 			.min_keysize	= AES_MIN_KEY_SIZE,
 			.max_keysize	= AES_MAX_KEY_SIZE,
+			.ivsize		= AES_BLOCK_SIZE,
 			.setkey		= aes_set_key,
 			.encrypt	= ctr_crypt,
 			.decrypt	= ctr_crypt,
diff --git a/arch/sparc/crypto/camellia_glue.c b/arch/sparc/crypto/camellia_glue.c
index 6bf2479..561a84d 100644
--- a/arch/sparc/crypto/camellia_glue.c
+++ b/arch/sparc/crypto/camellia_glue.c
@@ -274,6 +274,7 @@
 		.blkcipher = {
 			.min_keysize	= CAMELLIA_MIN_KEY_SIZE,
 			.max_keysize	= CAMELLIA_MAX_KEY_SIZE,
+			.ivsize		= CAMELLIA_BLOCK_SIZE,
 			.setkey		= camellia_set_key,
 			.encrypt	= cbc_encrypt,
 			.decrypt	= cbc_decrypt,
diff --git a/arch/sparc/crypto/des_glue.c b/arch/sparc/crypto/des_glue.c
index dd6a34f..61af794 100644
--- a/arch/sparc/crypto/des_glue.c
+++ b/arch/sparc/crypto/des_glue.c
@@ -429,6 +429,7 @@
 		.blkcipher = {
 			.min_keysize	= DES_KEY_SIZE,
 			.max_keysize	= DES_KEY_SIZE,
+			.ivsize		= DES_BLOCK_SIZE,
 			.setkey		= des_set_key,
 			.encrypt	= cbc_encrypt,
 			.decrypt	= cbc_decrypt,
@@ -485,6 +486,7 @@
 		.blkcipher = {
 			.min_keysize	= DES3_EDE_KEY_SIZE,
 			.max_keysize	= DES3_EDE_KEY_SIZE,
+			.ivsize		= DES3_EDE_BLOCK_SIZE,
 			.setkey		= des3_ede_set_key,
 			.encrypt	= cbc3_encrypt,
 			.decrypt	= cbc3_decrypt,
diff --git a/arch/um/Makefile b/arch/um/Makefile
index 098ab33..e3abe6f 100644
--- a/arch/um/Makefile
+++ b/arch/um/Makefile
@@ -70,8 +70,8 @@
 
 USER_CFLAGS = $(patsubst $(KERNEL_DEFINES),,$(patsubst -I%,,$(KBUILD_CFLAGS))) \
 		$(ARCH_INCLUDE) $(MODE_INCLUDE) $(filter -I%,$(CFLAGS)) \
-		-D_FILE_OFFSET_BITS=64 -idirafter include \
-		-D__KERNEL__ -D__UM_HOST__
+		-D_FILE_OFFSET_BITS=64 -idirafter $(srctree)/include \
+		-idirafter $(obj)/include -D__KERNEL__ -D__UM_HOST__
 
 #This will adjust *FLAGS accordingly to the platform.
 include $(ARCH_DIR)/Makefile-os-$(OS)
diff --git a/arch/um/kernel/trap.c b/arch/um/kernel/trap.c
index d8a9fce..98783dd 100644
--- a/arch/um/kernel/trap.c
+++ b/arch/um/kernel/trap.c
@@ -220,7 +220,7 @@
 		show_regs(container_of(regs, struct pt_regs, regs));
 		panic("Segfault with no mm");
 	}
-	else if (!is_user && address < TASK_SIZE) {
+	else if (!is_user && address > PAGE_SIZE && address < TASK_SIZE) {
 		show_regs(container_of(regs, struct pt_regs, regs));
 		panic("Kernel tried to access user memory at addr 0x%lx, ip 0x%lx",
 		       address, ip);
diff --git a/arch/um/os-Linux/helper.c b/arch/um/os-Linux/helper.c
index e3ee4a5..3f02d42 100644
--- a/arch/um/os-Linux/helper.c
+++ b/arch/um/os-Linux/helper.c
@@ -96,7 +96,7 @@
 			       "ret = %d\n", -n);
 			ret = n;
 		}
-		CATCH_EINTR(waitpid(pid, NULL, __WCLONE));
+		CATCH_EINTR(waitpid(pid, NULL, __WALL));
 	}
 
 out_free2:
@@ -129,7 +129,7 @@
 		return err;
 	}
 	if (stack_out == NULL) {
-		CATCH_EINTR(pid = waitpid(pid, &status, __WCLONE));
+		CATCH_EINTR(pid = waitpid(pid, &status, __WALL));
 		if (pid < 0) {
 			err = -errno;
 			printk(UM_KERN_ERR "run_helper_thread - wait failed, "
@@ -148,7 +148,7 @@
 int helper_wait(int pid)
 {
 	int ret, status;
-	int wflags = __WCLONE;
+	int wflags = __WALL;
 
 	CATCH_EINTR(ret = waitpid(pid, &status, wflags));
 	if (ret < 0) {
diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index ee1b6d3..db51c1f 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -667,6 +667,7 @@
 		bool conout_found = false;
 		void *dummy = NULL;
 		u32 h = handles[i];
+		u32 current_fb_base;
 
 		status = efi_call_early(handle_protocol, h,
 					proto, (void **)&gop32);
@@ -678,7 +679,7 @@
 		if (status == EFI_SUCCESS)
 			conout_found = true;
 
-		status = __gop_query32(gop32, &info, &size, &fb_base);
+		status = __gop_query32(gop32, &info, &size, &current_fb_base);
 		if (status == EFI_SUCCESS && (!first_gop || conout_found)) {
 			/*
 			 * Systems that use the UEFI Console Splitter may
@@ -692,6 +693,7 @@
 			pixel_format = info->pixel_format;
 			pixel_info = info->pixel_information;
 			pixels_per_scan_line = info->pixels_per_scan_line;
+			fb_base = current_fb_base;
 
 			/*
 			 * Once we've found a GOP supporting ConOut,
@@ -770,6 +772,7 @@
 		bool conout_found = false;
 		void *dummy = NULL;
 		u64 h = handles[i];
+		u32 current_fb_base;
 
 		status = efi_call_early(handle_protocol, h,
 					proto, (void **)&gop64);
@@ -781,7 +784,7 @@
 		if (status == EFI_SUCCESS)
 			conout_found = true;
 
-		status = __gop_query64(gop64, &info, &size, &fb_base);
+		status = __gop_query64(gop64, &info, &size, &current_fb_base);
 		if (status == EFI_SUCCESS && (!first_gop || conout_found)) {
 			/*
 			 * Systems that use the UEFI Console Splitter may
@@ -795,6 +798,7 @@
 			pixel_format = info->pixel_format;
 			pixel_info = info->pixel_information;
 			pixels_per_scan_line = info->pixels_per_scan_line;
+			fb_base = current_fb_base;
 
 			/*
 			 * Once we've found a GOP supporting ConOut,
diff --git a/arch/x86/crypto/camellia_aesni_avx_glue.c b/arch/x86/crypto/camellia_aesni_avx_glue.c
index 80a0e43..bacaa13 100644
--- a/arch/x86/crypto/camellia_aesni_avx_glue.c
+++ b/arch/x86/crypto/camellia_aesni_avx_glue.c
@@ -554,6 +554,11 @@
 {
 	const char *feature_name;
 
+	if (!cpu_has_avx || !cpu_has_aes || !cpu_has_osxsave) {
+		pr_info("AVX or AES-NI instructions are not detected.\n");
+		return -ENODEV;
+	}
+
 	if (!cpu_has_xfeatures(XSTATE_SSE | XSTATE_YMM, &feature_name)) {
 		pr_info("CPU feature '%s' is not supported.\n", feature_name);
 		return -ENODEV;
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 2beee03..3a36ee7 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1226,10 +1226,8 @@
 
 int kvm_is_in_guest(void);
 
-int __x86_set_memory_region(struct kvm *kvm,
-			    const struct kvm_userspace_memory_region *mem);
-int x86_set_memory_region(struct kvm *kvm,
-			  const struct kvm_userspace_memory_region *mem);
+int __x86_set_memory_region(struct kvm *kvm, int id, gpa_t gpa, u32 size);
+int x86_set_memory_region(struct kvm *kvm, int id, gpa_t gpa, u32 size);
 bool kvm_vcpu_is_reset_bsp(struct kvm_vcpu *vcpu);
 bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu);
 
diff --git a/arch/x86/include/asm/string_64.h b/arch/x86/include/asm/string_64.h
index e466119..ff8b9a1 100644
--- a/arch/x86/include/asm/string_64.h
+++ b/arch/x86/include/asm/string_64.h
@@ -27,12 +27,11 @@
    function. */
 
 #define __HAVE_ARCH_MEMCPY 1
+extern void *memcpy(void *to, const void *from, size_t len);
 extern void *__memcpy(void *to, const void *from, size_t len);
 
 #ifndef CONFIG_KMEMCHECK
-#if (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) || __GNUC__ > 4
-extern void *memcpy(void *to, const void *from, size_t len);
-#else
+#if (__GNUC__ == 4 && __GNUC_MINOR__ < 3) || __GNUC__ < 4
 #define memcpy(dst, src, len)					\
 ({								\
 	size_t __len = (len);					\
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index ded848c..e759076 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -976,6 +976,8 @@
 {
 	int count;
 	int x2count = 0;
+	int ret;
+	struct acpi_subtable_proc madt_proc[2];
 
 	if (!cpu_has_apic)
 		return -ENODEV;
@@ -999,10 +1001,22 @@
 				      acpi_parse_sapic, MAX_LOCAL_APIC);
 
 	if (!count) {
-		x2count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_X2APIC,
-					acpi_parse_x2apic, MAX_LOCAL_APIC);
-		count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC,
-					acpi_parse_lapic, MAX_LOCAL_APIC);
+		memset(madt_proc, 0, sizeof(madt_proc));
+		madt_proc[0].id = ACPI_MADT_TYPE_LOCAL_APIC;
+		madt_proc[0].handler = acpi_parse_lapic;
+		madt_proc[1].id = ACPI_MADT_TYPE_LOCAL_X2APIC;
+		madt_proc[1].handler = acpi_parse_x2apic;
+		ret = acpi_table_parse_entries_array(ACPI_SIG_MADT,
+				sizeof(struct acpi_table_madt),
+				madt_proc, ARRAY_SIZE(madt_proc), MAX_LOCAL_APIC);
+		if (ret < 0) {
+			printk(KERN_ERR PREFIX
+					"Error parsing LAPIC/X2APIC entries\n");
+			return ret;
+		}
+
+		x2count = madt_proc[0].count;
+		count = madt_proc[1].count;
 	}
 	if (!count && !x2count) {
 		printk(KERN_ERR PREFIX "No LAPIC entries present\n");
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 5c60bb1..bb6bfc0 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -2907,6 +2907,7 @@
 	struct irq_data *irq_data;
 	struct mp_chip_data *data;
 	struct irq_alloc_info *info = arg;
+	unsigned long flags;
 
 	if (!info || nr_irqs > 1)
 		return -EINVAL;
@@ -2939,11 +2940,14 @@
 
 	cfg = irqd_cfg(irq_data);
 	add_pin_to_irq_node(data, ioapic_alloc_attr_node(info), ioapic, pin);
+
+	local_irq_save(flags);
 	if (info->ioapic_entry)
 		mp_setup_entry(cfg, data, info->ioapic_entry);
 	mp_register_handler(virq, data->trigger);
 	if (virq < nr_legacy_irqs())
 		legacy_pic->mask(virq);
+	local_irq_restore(flags);
 
 	apic_printk(APIC_VERBOSE, KERN_DEBUG
 		    "IOAPIC[%d]: Set routing entry (%d-%d -> 0x%x -> IRQ %d Mode:%i Active:%i Dest:%d)\n",
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 39e585a..e28db18 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -550,14 +550,14 @@
 	if (sp < bottom || sp > top)
 		return 0;
 
-	fp = READ_ONCE(*(unsigned long *)sp);
+	fp = READ_ONCE_NOCHECK(*(unsigned long *)sp);
 	do {
 		if (fp < bottom || fp > top)
 			return 0;
-		ip = READ_ONCE(*(unsigned long *)(fp + sizeof(unsigned long)));
+		ip = READ_ONCE_NOCHECK(*(unsigned long *)(fp + sizeof(unsigned long)));
 		if (!in_sched_functions(ip))
 			return ip;
-		fp = READ_ONCE(*(unsigned long *)fp);
+		fp = READ_ONCE_NOCHECK(*(unsigned long *)fp);
 	} while (count++ < 16 && p->state != TASK_RUNNING);
 	return 0;
 }
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index fdb7f2a..a3cccbf 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -1173,6 +1173,14 @@
 	clone_pgd_range(initial_page_table + KERNEL_PGD_BOUNDARY,
 			swapper_pg_dir     + KERNEL_PGD_BOUNDARY,
 			KERNEL_PGD_PTRS);
+
+	/*
+	 * sync back low identity map too.  It is used for example
+	 * in the 32-bit EFI stub.
+	 */
+	clone_pgd_range(initial_page_table,
+			swapper_pg_dir     + KERNEL_PGD_BOUNDARY,
+			KERNEL_PGD_PTRS);
 #endif
 
 	tboot_probe();
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index e0c198e..892ee2e5 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -509,7 +509,7 @@
  */
 #define UDELAY_10MS_DEFAULT 10000
 
-static unsigned int init_udelay = UDELAY_10MS_DEFAULT;
+static unsigned int init_udelay = INT_MAX;
 
 static int __init cpu_init_udelay(char *str)
 {
@@ -522,13 +522,16 @@
 static void __init smp_quirk_init_udelay(void)
 {
 	/* if cmdline changed it from default, leave it alone */
-	if (init_udelay != UDELAY_10MS_DEFAULT)
+	if (init_udelay != INT_MAX)
 		return;
 
 	/* if modern processor, use no delay */
 	if (((boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) && (boot_cpu_data.x86 == 6)) ||
 	    ((boot_cpu_data.x86_vendor == X86_VENDOR_AMD) && (boot_cpu_data.x86 >= 0xF)))
 		init_udelay = 0;
+
+	/* else, use legacy delay */
+	init_udelay = UDELAY_10MS_DEFAULT;
 }
 
 /*
@@ -657,7 +660,9 @@
 		/*
 		 * Give the other CPU some time to accept the IPI.
 		 */
-		if (init_udelay)
+		if (init_udelay == 0)
+			udelay(10);
+		else
 			udelay(300);
 
 		pr_debug("Startup point 1\n");
@@ -668,7 +673,9 @@
 		/*
 		 * Give the other CPU some time to accept the IPI.
 		 */
-		if (init_udelay)
+		if (init_udelay == 0)
+			udelay(10);
+		else
 			udelay(200);
 
 		if (maxlvt > 3)		/* Due to the Pentium erratum 3AP.  */
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index b372a75..9da95b9 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -2418,7 +2418,7 @@
 	u64 val, cr0, cr4;
 	u32 base3;
 	u16 selector;
-	int i;
+	int i, r;
 
 	for (i = 0; i < 16; i++)
 		*reg_write(ctxt, i) = GET_SMSTATE(u64, smbase, 0x7ff8 - i * 8);
@@ -2460,13 +2460,17 @@
 	dt.address =                GET_SMSTATE(u64, smbase, 0x7e68);
 	ctxt->ops->set_gdt(ctxt, &dt);
 
+	r = rsm_enter_protected_mode(ctxt, cr0, cr4);
+	if (r != X86EMUL_CONTINUE)
+		return r;
+
 	for (i = 0; i < 6; i++) {
-		int r = rsm_load_seg_64(ctxt, smbase, i);
+		r = rsm_load_seg_64(ctxt, smbase, i);
 		if (r != X86EMUL_CONTINUE)
 			return r;
 	}
 
-	return rsm_enter_protected_mode(ctxt, cr0, cr4);
+	return X86EMUL_CONTINUE;
 }
 
 static int em_rsm(struct x86_emulate_ctxt *ctxt)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 06ef490..6a8bc64 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -4105,17 +4105,13 @@
 static int alloc_apic_access_page(struct kvm *kvm)
 {
 	struct page *page;
-	struct kvm_userspace_memory_region kvm_userspace_mem;
 	int r = 0;
 
 	mutex_lock(&kvm->slots_lock);
 	if (kvm->arch.apic_access_page_done)
 		goto out;
-	kvm_userspace_mem.slot = APIC_ACCESS_PAGE_PRIVATE_MEMSLOT;
-	kvm_userspace_mem.flags = 0;
-	kvm_userspace_mem.guest_phys_addr = APIC_DEFAULT_PHYS_BASE;
-	kvm_userspace_mem.memory_size = PAGE_SIZE;
-	r = __x86_set_memory_region(kvm, &kvm_userspace_mem);
+	r = __x86_set_memory_region(kvm, APIC_ACCESS_PAGE_PRIVATE_MEMSLOT,
+				    APIC_DEFAULT_PHYS_BASE, PAGE_SIZE);
 	if (r)
 		goto out;
 
@@ -4140,17 +4136,12 @@
 {
 	/* Called with kvm->slots_lock held. */
 
-	struct kvm_userspace_memory_region kvm_userspace_mem;
 	int r = 0;
 
 	BUG_ON(kvm->arch.ept_identity_pagetable_done);
 
-	kvm_userspace_mem.slot = IDENTITY_PAGETABLE_PRIVATE_MEMSLOT;
-	kvm_userspace_mem.flags = 0;
-	kvm_userspace_mem.guest_phys_addr =
-		kvm->arch.ept_identity_map_addr;
-	kvm_userspace_mem.memory_size = PAGE_SIZE;
-	r = __x86_set_memory_region(kvm, &kvm_userspace_mem);
+	r = __x86_set_memory_region(kvm, IDENTITY_PAGETABLE_PRIVATE_MEMSLOT,
+				    kvm->arch.ept_identity_map_addr, PAGE_SIZE);
 
 	return r;
 }
@@ -4949,14 +4940,9 @@
 static int vmx_set_tss_addr(struct kvm *kvm, unsigned int addr)
 {
 	int ret;
-	struct kvm_userspace_memory_region tss_mem = {
-		.slot = TSS_PRIVATE_MEMSLOT,
-		.guest_phys_addr = addr,
-		.memory_size = PAGE_SIZE * 3,
-		.flags = 0,
-	};
 
-	ret = x86_set_memory_region(kvm, &tss_mem);
+	ret = x86_set_memory_region(kvm, TSS_PRIVATE_MEMSLOT, addr,
+				    PAGE_SIZE * 3);
 	if (ret)
 		return ret;
 	kvm->arch.tss_addr = addr;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 92511d4..9a9a198 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -6453,6 +6453,12 @@
 	return 1;
 }
 
+static inline bool kvm_vcpu_running(struct kvm_vcpu *vcpu)
+{
+	return (vcpu->arch.mp_state == KVM_MP_STATE_RUNNABLE &&
+		!vcpu->arch.apf.halted);
+}
+
 static int vcpu_run(struct kvm_vcpu *vcpu)
 {
 	int r;
@@ -6461,8 +6467,7 @@
 	vcpu->srcu_idx = srcu_read_lock(&kvm->srcu);
 
 	for (;;) {
-		if (vcpu->arch.mp_state == KVM_MP_STATE_RUNNABLE &&
-		    !vcpu->arch.apf.halted)
+		if (kvm_vcpu_running(vcpu))
 			r = vcpu_enter_guest(vcpu);
 		else
 			r = vcpu_block(kvm, vcpu);
@@ -7474,34 +7479,66 @@
 	kvm_free_pit(kvm);
 }
 
-int __x86_set_memory_region(struct kvm *kvm,
-			    const struct kvm_userspace_memory_region *mem)
+int __x86_set_memory_region(struct kvm *kvm, int id, gpa_t gpa, u32 size)
 {
 	int i, r;
+	unsigned long hva;
+	struct kvm_memslots *slots = kvm_memslots(kvm);
+	struct kvm_memory_slot *slot, old;
 
 	/* Called with kvm->slots_lock held.  */
-	BUG_ON(mem->slot >= KVM_MEM_SLOTS_NUM);
+	if (WARN_ON(id >= KVM_MEM_SLOTS_NUM))
+		return -EINVAL;
 
+	slot = id_to_memslot(slots, id);
+	if (size) {
+		if (WARN_ON(slot->npages))
+			return -EEXIST;
+
+		/*
+		 * MAP_SHARED to prevent internal slot pages from being moved
+		 * by fork()/COW.
+		 */
+		hva = vm_mmap(NULL, 0, size, PROT_READ | PROT_WRITE,
+			      MAP_SHARED | MAP_ANONYMOUS, 0);
+		if (IS_ERR((void *)hva))
+			return PTR_ERR((void *)hva);
+	} else {
+		if (!slot->npages)
+			return 0;
+
+		hva = 0;
+	}
+
+	old = *slot;
 	for (i = 0; i < KVM_ADDRESS_SPACE_NUM; i++) {
-		struct kvm_userspace_memory_region m = *mem;
+		struct kvm_userspace_memory_region m;
 
-		m.slot |= i << 16;
+		m.slot = id | (i << 16);
+		m.flags = 0;
+		m.guest_phys_addr = gpa;
+		m.userspace_addr = hva;
+		m.memory_size = size;
 		r = __kvm_set_memory_region(kvm, &m);
 		if (r < 0)
 			return r;
 	}
 
+	if (!size) {
+		r = vm_munmap(old.userspace_addr, old.npages * PAGE_SIZE);
+		WARN_ON(r < 0);
+	}
+
 	return 0;
 }
 EXPORT_SYMBOL_GPL(__x86_set_memory_region);
 
-int x86_set_memory_region(struct kvm *kvm,
-			  const struct kvm_userspace_memory_region *mem)
+int x86_set_memory_region(struct kvm *kvm, int id, gpa_t gpa, u32 size)
 {
 	int r;
 
 	mutex_lock(&kvm->slots_lock);
-	r = __x86_set_memory_region(kvm, mem);
+	r = __x86_set_memory_region(kvm, id, gpa, size);
 	mutex_unlock(&kvm->slots_lock);
 
 	return r;
@@ -7516,16 +7553,9 @@
 		 * unless the the memory map has changed due to process exit
 		 * or fd copying.
 		 */
-		struct kvm_userspace_memory_region mem;
-		memset(&mem, 0, sizeof(mem));
-		mem.slot = APIC_ACCESS_PAGE_PRIVATE_MEMSLOT;
-		x86_set_memory_region(kvm, &mem);
-
-		mem.slot = IDENTITY_PAGETABLE_PRIVATE_MEMSLOT;
-		x86_set_memory_region(kvm, &mem);
-
-		mem.slot = TSS_PRIVATE_MEMSLOT;
-		x86_set_memory_region(kvm, &mem);
+		x86_set_memory_region(kvm, APIC_ACCESS_PAGE_PRIVATE_MEMSLOT, 0, 0);
+		x86_set_memory_region(kvm, IDENTITY_PAGETABLE_PRIVATE_MEMSLOT, 0, 0);
+		x86_set_memory_region(kvm, TSS_PRIVATE_MEMSLOT, 0, 0);
 	}
 	kvm_iommu_unmap_guest(kvm);
 	kfree(kvm->arch.vpic);
@@ -7628,27 +7658,6 @@
 				const struct kvm_userspace_memory_region *mem,
 				enum kvm_mr_change change)
 {
-	/*
-	 * Only private memory slots need to be mapped here since
-	 * KVM_SET_MEMORY_REGION ioctl is no longer supported.
-	 */
-	if ((memslot->id >= KVM_USER_MEM_SLOTS) && (change == KVM_MR_CREATE)) {
-		unsigned long userspace_addr;
-
-		/*
-		 * MAP_SHARED to prevent internal slot pages from being moved
-		 * by fork()/COW.
-		 */
-		userspace_addr = vm_mmap(NULL, 0, memslot->npages * PAGE_SIZE,
-					 PROT_READ | PROT_WRITE,
-					 MAP_SHARED | MAP_ANONYMOUS, 0);
-
-		if (IS_ERR((void *)userspace_addr))
-			return PTR_ERR((void *)userspace_addr);
-
-		memslot->userspace_addr = userspace_addr;
-	}
-
 	return 0;
 }
 
@@ -7710,17 +7719,6 @@
 {
 	int nr_mmu_pages = 0;
 
-	if (change == KVM_MR_DELETE && old->id >= KVM_USER_MEM_SLOTS) {
-		int ret;
-
-		ret = vm_munmap(old->userspace_addr,
-				old->npages * PAGE_SIZE);
-		if (ret < 0)
-			printk(KERN_WARNING
-			       "kvm_vm_ioctl_set_memory_region: "
-			       "failed to munmap memory\n");
-	}
-
 	if (!kvm->arch.n_requested_mmu_pages)
 		nr_mmu_pages = kvm_mmu_calculate_mmu_pages(kvm);
 
@@ -7769,19 +7767,36 @@
 	kvm_mmu_invalidate_zap_all_pages(kvm);
 }
 
+static inline bool kvm_vcpu_has_events(struct kvm_vcpu *vcpu)
+{
+	if (!list_empty_careful(&vcpu->async_pf.done))
+		return true;
+
+	if (kvm_apic_has_events(vcpu))
+		return true;
+
+	if (vcpu->arch.pv.pv_unhalted)
+		return true;
+
+	if (atomic_read(&vcpu->arch.nmi_queued))
+		return true;
+
+	if (test_bit(KVM_REQ_SMI, &vcpu->requests))
+		return true;
+
+	if (kvm_arch_interrupt_allowed(vcpu) &&
+	    kvm_cpu_has_interrupt(vcpu))
+		return true;
+
+	return false;
+}
+
 int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu)
 {
 	if (is_guest_mode(vcpu) && kvm_x86_ops->check_nested_events)
 		kvm_x86_ops->check_nested_events(vcpu, false);
 
-	return (vcpu->arch.mp_state == KVM_MP_STATE_RUNNABLE &&
-		!vcpu->arch.apf.halted)
-		|| !list_empty_careful(&vcpu->async_pf.done)
-		|| kvm_apic_has_events(vcpu)
-		|| vcpu->arch.pv.pv_unhalted
-		|| atomic_read(&vcpu->arch.nmi_queued) ||
-		(kvm_arch_interrupt_allowed(vcpu) &&
-		 kvm_cpu_has_interrupt(vcpu));
+	return kvm_vcpu_running(vcpu) || kvm_vcpu_has_events(vcpu);
 }
 
 int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu)
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index ff99117..3cd6983 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -4,16 +4,15 @@
 #include <linux/irq.h>
 #include <linux/dmi.h>
 #include <linux/slab.h>
+#include <linux/pci-acpi.h>
 #include <asm/numa.h>
 #include <asm/pci_x86.h>
 
 struct pci_root_info {
-	struct acpi_device *bridge;
-	char name[16];
+	struct acpi_pci_root_info common;
 	struct pci_sysdata sd;
 #ifdef	CONFIG_PCI_MMCONFIG
 	bool mcfg_added;
-	u16 segment;
 	u8 start_bus;
 	u8 end_bus;
 #endif
@@ -178,15 +177,18 @@
 	return 0;
 }
 
-static int setup_mcfg_map(struct pci_root_info *info, u16 seg, u8 start,
-			  u8 end, phys_addr_t addr)
+static int setup_mcfg_map(struct acpi_pci_root_info *ci)
 {
-	int result;
-	struct device *dev = &info->bridge->dev;
+	int result, seg;
+	struct pci_root_info *info;
+	struct acpi_pci_root *root = ci->root;
+	struct device *dev = &ci->bridge->dev;
 
-	info->start_bus = start;
-	info->end_bus = end;
+	info = container_of(ci, struct pci_root_info, common);
+	info->start_bus = (u8)root->secondary.start;
+	info->end_bus = (u8)root->secondary.end;
 	info->mcfg_added = false;
+	seg = info->sd.domain;
 
 	/* return success if MMCFG is not in use */
 	if (raw_pci_ext_ops && raw_pci_ext_ops != &pci_mmcfg)
@@ -195,7 +197,8 @@
 	if (!(pci_probe & PCI_PROBE_MMCONF))
 		return check_segment(seg, dev, "MMCONFIG is disabled,");
 
-	result = pci_mmconfig_insert(dev, seg, start, end, addr);
+	result = pci_mmconfig_insert(dev, seg, info->start_bus, info->end_bus,
+				     root->mcfg_addr);
 	if (result == 0) {
 		/* enable MMCFG if it hasn't been enabled yet */
 		if (raw_pci_ext_ops == NULL)
@@ -208,134 +211,55 @@
 	return 0;
 }
 
-static void teardown_mcfg_map(struct pci_root_info *info)
+static void teardown_mcfg_map(struct acpi_pci_root_info *ci)
 {
+	struct pci_root_info *info;
+
+	info = container_of(ci, struct pci_root_info, common);
 	if (info->mcfg_added) {
-		pci_mmconfig_delete(info->segment, info->start_bus,
-				    info->end_bus);
+		pci_mmconfig_delete(info->sd.domain,
+				    info->start_bus, info->end_bus);
 		info->mcfg_added = false;
 	}
 }
 #else
-static int setup_mcfg_map(struct pci_root_info *info,
-				    u16 seg, u8 start, u8 end,
-				    phys_addr_t addr)
+static int setup_mcfg_map(struct acpi_pci_root_info *ci)
 {
 	return 0;
 }
-static void teardown_mcfg_map(struct pci_root_info *info)
+
+static void teardown_mcfg_map(struct acpi_pci_root_info *ci)
 {
 }
 #endif
 
-static void validate_resources(struct device *dev, struct list_head *crs_res,
-			       unsigned long type)
+static int pci_acpi_root_get_node(struct acpi_pci_root *root)
 {
-	LIST_HEAD(list);
-	struct resource *res1, *res2, *root = NULL;
-	struct resource_entry *tmp, *entry, *entry2;
+	int busnum = root->secondary.start;
+	struct acpi_device *device = root->device;
+	int node = acpi_get_node(device->handle);
 
-	BUG_ON((type & (IORESOURCE_MEM | IORESOURCE_IO)) == 0);
-	root = (type & IORESOURCE_MEM) ? &iomem_resource : &ioport_resource;
-
-	list_splice_init(crs_res, &list);
-	resource_list_for_each_entry_safe(entry, tmp, &list) {
-		bool free = false;
-		resource_size_t end;
-
-		res1 = entry->res;
-		if (!(res1->flags & type))
-			goto next;
-
-		/* Exclude non-addressable range or non-addressable portion */
-		end = min(res1->end, root->end);
-		if (end <= res1->start) {
-			dev_info(dev, "host bridge window %pR (ignored, not CPU addressable)\n",
-				 res1);
-			free = true;
-			goto next;
-		} else if (res1->end != end) {
-			dev_info(dev, "host bridge window %pR ([%#llx-%#llx] ignored, not CPU addressable)\n",
-				 res1, (unsigned long long)end + 1,
-				 (unsigned long long)res1->end);
-			res1->end = end;
-		}
-
-		resource_list_for_each_entry(entry2, crs_res) {
-			res2 = entry2->res;
-			if (!(res2->flags & type))
-				continue;
-
-			/*
-			 * I don't like throwing away windows because then
-			 * our resources no longer match the ACPI _CRS, but
-			 * the kernel resource tree doesn't allow overlaps.
-			 */
-			if (resource_overlaps(res1, res2)) {
-				res2->start = min(res1->start, res2->start);
-				res2->end = max(res1->end, res2->end);
-				dev_info(dev, "host bridge window expanded to %pR; %pR ignored\n",
-					 res2, res1);
-				free = true;
-				goto next;
-			}
-		}
-
-next:
-		resource_list_del(entry);
-		if (free)
-			resource_list_free_entry(entry);
-		else
-			resource_list_add_tail(entry, crs_res);
+	if (node == NUMA_NO_NODE) {
+		node = x86_pci_root_bus_node(busnum);
+		if (node != 0 && node != NUMA_NO_NODE)
+			dev_info(&device->dev, FW_BUG "no _PXM; falling back to node %d from hardware (may be inconsistent with ACPI node numbers)\n",
+				node);
 	}
+	if (node != NUMA_NO_NODE && !node_online(node))
+		node = NUMA_NO_NODE;
+
+	return node;
 }
 
-static void add_resources(struct pci_root_info *info,
-			  struct list_head *resources,
-			  struct list_head *crs_res)
+static int pci_acpi_root_init_info(struct acpi_pci_root_info *ci)
 {
-	struct resource_entry *entry, *tmp;
-	struct resource *res, *conflict, *root = NULL;
-
-	validate_resources(&info->bridge->dev, crs_res, IORESOURCE_MEM);
-	validate_resources(&info->bridge->dev, crs_res, IORESOURCE_IO);
-
-	resource_list_for_each_entry_safe(entry, tmp, crs_res) {
-		res = entry->res;
-		if (res->flags & IORESOURCE_MEM)
-			root = &iomem_resource;
-		else if (res->flags & IORESOURCE_IO)
-			root = &ioport_resource;
-		else
-			BUG_ON(res);
-
-		conflict = insert_resource_conflict(root, res);
-		if (conflict) {
-			dev_info(&info->bridge->dev,
-				 "ignoring host bridge window %pR (conflicts with %s %pR)\n",
-				 res, conflict->name, conflict);
-			resource_list_destroy_entry(entry);
-		}
-	}
-
-	list_splice_tail(crs_res, resources);
+	return setup_mcfg_map(ci);
 }
 
-static void release_pci_root_info(struct pci_host_bridge *bridge)
+static void pci_acpi_root_release_info(struct acpi_pci_root_info *ci)
 {
-	struct resource *res;
-	struct resource_entry *entry;
-	struct pci_root_info *info = bridge->release_data;
-
-	resource_list_for_each_entry(entry, &bridge->windows) {
-		res = entry->res;
-		if (res->parent &&
-		    (res->flags & (IORESOURCE_MEM | IORESOURCE_IO)))
-			release_resource(res);
-	}
-
-	teardown_mcfg_map(info);
-	kfree(info);
+	teardown_mcfg_map(ci);
+	kfree(container_of(ci, struct pci_root_info, common));
 }
 
 /*
@@ -358,50 +282,47 @@
 		res->start == 0xCF8 && res->end == 0xCFF;
 }
 
-static void probe_pci_root_info(struct pci_root_info *info,
-				struct acpi_device *device,
-				int busnum, int domain,
-				struct list_head *list)
+static int pci_acpi_root_prepare_resources(struct acpi_pci_root_info *ci)
 {
-	int ret;
+	struct acpi_device *device = ci->bridge;
+	int busnum = ci->root->secondary.start;
 	struct resource_entry *entry, *tmp;
+	int status;
 
-	sprintf(info->name, "PCI Bus %04x:%02x", domain, busnum);
-	info->bridge = device;
-	ret = acpi_dev_get_resources(device, list,
-				     acpi_dev_filter_resource_type_cb,
-				     (void *)(IORESOURCE_IO | IORESOURCE_MEM));
-	if (ret < 0)
-		dev_warn(&device->dev,
-			 "failed to parse _CRS method, error code %d\n", ret);
-	else if (ret == 0)
-		dev_dbg(&device->dev,
-			"no IO and memory resources present in _CRS\n");
-	else
-		resource_list_for_each_entry_safe(entry, tmp, list) {
-			if ((entry->res->flags & IORESOURCE_DISABLED) ||
-			    resource_is_pcicfg_ioport(entry->res))
+	status = acpi_pci_probe_root_resources(ci);
+	if (pci_use_crs) {
+		resource_list_for_each_entry_safe(entry, tmp, &ci->resources)
+			if (resource_is_pcicfg_ioport(entry->res))
 				resource_list_destroy_entry(entry);
-			else
-				entry->res->name = info->name;
-		}
+		return status;
+	}
+
+	resource_list_for_each_entry_safe(entry, tmp, &ci->resources) {
+		dev_printk(KERN_DEBUG, &device->dev,
+			   "host bridge window %pR (ignored)\n", entry->res);
+		resource_list_destroy_entry(entry);
+	}
+	x86_pci_root_bus_resources(busnum, &ci->resources);
+
+	return 0;
 }
 
+static struct acpi_pci_root_ops acpi_pci_root_ops = {
+	.pci_ops = &pci_root_ops,
+	.init_info = pci_acpi_root_init_info,
+	.release_info = pci_acpi_root_release_info,
+	.prepare_resources = pci_acpi_root_prepare_resources,
+};
+
 struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
 {
-	struct acpi_device *device = root->device;
-	struct pci_root_info *info;
 	int domain = root->segment;
 	int busnum = root->secondary.start;
-	struct resource_entry *res_entry;
-	LIST_HEAD(crs_res);
-	LIST_HEAD(resources);
+	int node = pci_acpi_root_get_node(root);
 	struct pci_bus *bus;
-	struct pci_sysdata *sd;
-	int node;
 
 	if (pci_ignore_seg)
-		domain = 0;
+		root->segment = domain = 0;
 
 	if (domain && !pci_domains_supported) {
 		printk(KERN_WARNING "pci_bus %04x:%02x: "
@@ -410,71 +331,33 @@
 		return NULL;
 	}
 
-	node = acpi_get_node(device->handle);
-	if (node == NUMA_NO_NODE) {
-		node = x86_pci_root_bus_node(busnum);
-		if (node != 0 && node != NUMA_NO_NODE)
-			dev_info(&device->dev, FW_BUG "no _PXM; falling back to node %d from hardware (may be inconsistent with ACPI node numbers)\n",
-				node);
-	}
-
-	if (node != NUMA_NO_NODE && !node_online(node))
-		node = NUMA_NO_NODE;
-
-	info = kzalloc_node(sizeof(*info), GFP_KERNEL, node);
-	if (!info) {
-		printk(KERN_WARNING "pci_bus %04x:%02x: "
-		       "ignored (out of memory)\n", domain, busnum);
-		return NULL;
-	}
-
-	sd = &info->sd;
-	sd->domain = domain;
-	sd->node = node;
-	sd->companion = device;
-
 	bus = pci_find_bus(domain, busnum);
 	if (bus) {
 		/*
 		 * If the desired bus has been scanned already, replace
 		 * its bus->sysdata.
 		 */
-		memcpy(bus->sysdata, sd, sizeof(*sd));
-		kfree(info);
+		struct pci_sysdata sd = {
+			.domain = domain,
+			.node = node,
+			.companion = root->device
+		};
+
+		memcpy(bus->sysdata, &sd, sizeof(sd));
 	} else {
-		/* insert busn res at first */
-		pci_add_resource(&resources,  &root->secondary);
+		struct pci_root_info *info;
 
-		/*
-		 * _CRS with no apertures is normal, so only fall back to
-		 * defaults or native bridge info if we're ignoring _CRS.
-		 */
-		probe_pci_root_info(info, device, busnum, domain, &crs_res);
-		if (pci_use_crs) {
-			add_resources(info, &resources, &crs_res);
-		} else {
-			resource_list_for_each_entry(res_entry, &crs_res)
-				dev_printk(KERN_DEBUG, &device->dev,
-					   "host bridge window %pR (ignored)\n",
-					   res_entry->res);
-			resource_list_free(&crs_res);
-			x86_pci_root_bus_resources(busnum, &resources);
-		}
-
-		if (!setup_mcfg_map(info, domain, (u8)root->secondary.start,
-				    (u8)root->secondary.end, root->mcfg_addr))
-			bus = pci_create_root_bus(NULL, busnum, &pci_root_ops,
-						  sd, &resources);
-
-		if (bus) {
-			pci_scan_child_bus(bus);
-			pci_set_host_bridge_release(
-				to_pci_host_bridge(bus->bridge),
-				release_pci_root_info, info);
-		} else {
-			resource_list_free(&resources);
-			teardown_mcfg_map(info);
-			kfree(info);
+		info = kzalloc_node(sizeof(*info), GFP_KERNEL, node);
+		if (!info)
+			dev_err(&root->device->dev,
+				"pci_bus %04x:%02x: ignored (out of memory)\n",
+				domain, busnum);
+		else {
+			info->sd.domain = domain;
+			info->sd.node = node;
+			info->sd.companion = root->device;
+			bus = acpi_pci_root_create(root, &acpi_pci_root_ops,
+						   &info->common, &info->sd);
 		}
 	}
 
@@ -487,9 +370,6 @@
 			pcie_bus_configure_settings(child);
 	}
 
-	if (bus && node != NUMA_NO_NODE)
-		dev_printk(KERN_DEBUG, &bus->dev, "on NUMA node %d\n", node);
-
 	return bus;
 }
 
diff --git a/arch/x86/um/ldt.c b/arch/x86/um/ldt.c
index 9701a4f..836a1eb 100644
--- a/arch/x86/um/ldt.c
+++ b/arch/x86/um/ldt.c
@@ -12,7 +12,10 @@
 #include <skas.h>
 #include <sysdep/tls.h>
 
-extern int modify_ldt(int func, void *ptr, unsigned long bytecount);
+static inline int modify_ldt (int func, void *ptr, unsigned long bytecount)
+{
+	return syscall(__NR_modify_ldt, func, ptr, bytecount);
+}
 
 static long write_ldt_entry(struct mm_id *mm_idp, int func,
 		     struct user_desc *desc, void **addr, int done)
diff --git a/arch/xtensa/kernel/time.c b/arch/xtensa/kernel/time.c
index b97767d..b9ad9fe 100644
--- a/arch/xtensa/kernel/time.c
+++ b/arch/xtensa/kernel/time.c
@@ -148,7 +148,7 @@
 	local_timer_setup(0);
 	setup_irq(this_cpu_ptr(&ccount_timer)->evt.irq, &timer_irqaction);
 	sched_clock_register(ccount_sched_clock_read, 32, ccount_freq);
-	clocksource_of_init();
+	clocksource_probe();
 }
 
 /*
diff --git a/block/blk-core.c b/block/blk-core.c
index 2eb722d4..18e92a6 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -576,7 +576,7 @@
 		q->queue_lock = &q->__queue_lock;
 	spin_unlock_irq(lock);
 
-	bdi_destroy(&q->backing_dev_info);
+	bdi_unregister(&q->backing_dev_info);
 
 	/* @q is and will stay empty, shutdown and put */
 	blk_put_queue(q);
diff --git a/block/blk-mq-tag.c b/block/blk-mq-tag.c
index ed96474..ec2d119 100644
--- a/block/blk-mq-tag.c
+++ b/block/blk-mq-tag.c
@@ -641,6 +641,7 @@
 {
 	bt_free(&tags->bitmap_tags);
 	bt_free(&tags->breserved_tags);
+	free_cpumask_var(tags->cpumask);
 	kfree(tags);
 }
 
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 7785ae96..85f0143 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -2296,10 +2296,8 @@
 	int i;
 
 	for (i = 0; i < set->nr_hw_queues; i++) {
-		if (set->tags[i]) {
+		if (set->tags[i])
 			blk_mq_free_rq_map(set, set->tags[i], i);
-			free_cpumask_var(set->tags[i]->cpumask);
-		}
 	}
 
 	kfree(set->tags);
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index 3e44a9d..07b42f5 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -540,6 +540,7 @@
 	struct request_queue *q =
 		container_of(kobj, struct request_queue, kobj);
 
+	bdi_exit(&q->backing_dev_info);
 	blkcg_exit_queue(q);
 
 	if (q->elevator) {
diff --git a/crypto/ahash.c b/crypto/ahash.c
index 8acb88603..9c1dc8d 100644
--- a/crypto/ahash.c
+++ b/crypto/ahash.c
@@ -544,7 +544,8 @@
 	struct crypto_alg *base = &alg->halg.base;
 
 	if (alg->halg.digestsize > PAGE_SIZE / 8 ||
-	    alg->halg.statesize > PAGE_SIZE / 8)
+	    alg->halg.statesize > PAGE_SIZE / 8 ||
+	    alg->halg.statesize == 0)
 		return -EINVAL;
 
 	base->cra_type = &crypto_ahash_type;
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index ce97a59..25dbb76 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -57,6 +57,15 @@
 config ACPI_CCA_REQUIRED
 	bool
 
+config ACPI_DEBUGGER
+	bool "In-kernel debugger (EXPERIMENTAL)"
+	select ACPI_DEBUG
+	help
+	  Enable in-kernel debugging facilities: statistics, internal
+	  object dump, single step control method execution.
+	  This is still under development, currently enabling this only
+	  results in the compilation of the ACPICA debugger files.
+
 config ACPI_SLEEP
 	bool
 	depends on SUSPEND || HIBERNATION
diff --git a/drivers/acpi/acpi_pnp.c b/drivers/acpi/acpi_pnp.c
index c58940b..48fc3ad 100644
--- a/drivers/acpi/acpi_pnp.c
+++ b/drivers/acpi/acpi_pnp.c
@@ -316,7 +316,7 @@
 	{""},
 };
 
-static bool matching_id(char *idstr, char *list_id)
+static bool matching_id(const char *idstr, const char *list_id)
 {
 	int i;
 
@@ -333,7 +333,7 @@
 	return true;
 }
 
-static bool acpi_pnp_match(char *idstr, const struct acpi_device_id **matchid)
+static bool acpi_pnp_match(const char *idstr, const struct acpi_device_id **matchid)
 {
 	const struct acpi_device_id *devid;
 
diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile
index fedcc16..885936f 100644
--- a/drivers/acpi/acpica/Makefile
+++ b/drivers/acpi/acpica/Makefile
@@ -123,7 +123,6 @@
 	rsaddr.o	\
 	rscalc.o	\
 	rscreate.o	\
-	rsdump.o	\
 	rsdumpinfo.o	\
 	rsinfo.o	\
 	rsio.o		\
@@ -178,7 +177,24 @@
 	utxferror.o	\
 	utxfmutex.o
 
+acpi-$(CONFIG_ACPI_DEBUGGER) +=	\
+	dbcmds.o		\
+	dbconvert.o		\
+	dbdisply.o		\
+	dbexec.o		\
+	dbhistry.o		\
+	dbinput.o		\
+	dbmethod.o		\
+	dbnames.o		\
+	dbobject.o		\
+	dbstats.o		\
+	dbutils.o		\
+	dbxface.o		\
+	rsdump.o		\
+
 acpi-$(ACPI_FUTURE_USAGE) +=	\
+	dbfileio.o		\
+	dbtest.o		\
 	utcache.o		\
 	utfileio.o		\
 	utprint.o		\
diff --git a/drivers/acpi/acpica/acapps.h b/drivers/acpi/acpica/acapps.h
index e9f0833..e4cc48f 100644
--- a/drivers/acpi/acpica/acapps.h
+++ b/drivers/acpi/acpica/acapps.h
@@ -88,7 +88,7 @@
 	acpi_os_printf (" %-18s%s\n", name, description);
 
 #define FILE_SUFFIX_DISASSEMBLY     "dsl"
-#define ACPI_TABLE_FILE_SUFFIX      ".dat"
+#define FILE_SUFFIX_BINARY_TABLE    ".dat"	/* Needs the dot */
 
 /*
  * getopt
diff --git a/drivers/acpi/acpica/acdebug.h b/drivers/acpi/acpica/acdebug.h
index eb2e926..c928ba4 100644
--- a/drivers/acpi/acpica/acdebug.h
+++ b/drivers/acpi/acpica/acdebug.h
@@ -44,6 +44,12 @@
 #ifndef __ACDEBUG_H__
 #define __ACDEBUG_H__
 
+/* The debugger is used in conjunction with the disassembler most of time */
+
+#ifdef ACPI_DISASSEMBLER
+#include "acdisasm.h"
+#endif
+
 #define ACPI_DEBUG_BUFFER_SIZE  0x4000	/* 16K buffer for return objects */
 
 struct acpi_db_command_info {
diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h
index 09f37b5..faa9760 100644
--- a/drivers/acpi/acpica/acglobal.h
+++ b/drivers/acpi/acpica/acglobal.h
@@ -61,6 +61,7 @@
 ACPI_INIT_GLOBAL(u32, acpi_gbl_dsdt_index, ACPI_INVALID_TABLE_INDEX);
 ACPI_INIT_GLOBAL(u32, acpi_gbl_facs_index, ACPI_INVALID_TABLE_INDEX);
 ACPI_INIT_GLOBAL(u32, acpi_gbl_xfacs_index, ACPI_INVALID_TABLE_INDEX);
+ACPI_INIT_GLOBAL(u32, acpi_gbl_fadt_index, ACPI_INVALID_TABLE_INDEX);
 
 #if (!ACPI_REDUCED_HARDWARE)
 ACPI_GLOBAL(struct acpi_table_facs *, acpi_gbl_FACS);
@@ -324,9 +325,9 @@
 
 #ifdef ACPI_DEBUGGER
 
-ACPI_INIT_GLOBAL(u8, acpi_gbl_db_terminate_threads, FALSE);
 ACPI_INIT_GLOBAL(u8, acpi_gbl_abort_method, FALSE);
 ACPI_INIT_GLOBAL(u8, acpi_gbl_method_executing, FALSE);
+ACPI_INIT_GLOBAL(acpi_thread_id, acpi_gbl_db_thread_id, ACPI_INVALID_THREAD_ID);
 
 ACPI_GLOBAL(u8, acpi_gbl_db_opt_no_ini_methods);
 ACPI_GLOBAL(u8, acpi_gbl_db_opt_no_region_support);
@@ -336,6 +337,8 @@
 ACPI_GLOBAL(u32, acpi_gbl_db_debug_level);
 ACPI_GLOBAL(u32, acpi_gbl_db_console_debug_level);
 ACPI_GLOBAL(struct acpi_namespace_node *, acpi_gbl_db_scope_node);
+ACPI_GLOBAL(u8, acpi_gbl_db_terminate_loop);
+ACPI_GLOBAL(u8, acpi_gbl_db_threads_terminated);
 
 ACPI_GLOBAL(char *, acpi_gbl_db_args[ACPI_DEBUGGER_MAX_ARGS]);
 ACPI_GLOBAL(acpi_object_type, acpi_gbl_db_arg_types[ACPI_DEBUGGER_MAX_ARGS]);
@@ -357,6 +360,9 @@
 ACPI_GLOBAL(u32, acpi_gbl_num_nodes);
 ACPI_GLOBAL(u32, acpi_gbl_num_objects);
 
+ACPI_GLOBAL(acpi_mutex, acpi_gbl_db_command_ready);
+ACPI_GLOBAL(acpi_mutex, acpi_gbl_db_command_complete);
+
 #endif				/* ACPI_DEBUGGER */
 
 /*****************************************************************************
diff --git a/drivers/acpi/acpica/acinterp.h b/drivers/acpi/acpica/acinterp.h
index e820ed8..e9e936e 100644
--- a/drivers/acpi/acpica/acinterp.h
+++ b/drivers/acpi/acpica/acinterp.h
@@ -397,12 +397,10 @@
 acpi_ex_dump_operands(union acpi_operand_object **operands,
 		      const char *opcode_name, u32 num_opcodes);
 
-#ifdef	ACPI_FUTURE_USAGE
 void
 acpi_ex_dump_object_descriptor(union acpi_operand_object *object, u32 flags);
 
 void acpi_ex_dump_namespace_node(struct acpi_namespace_node *node, u32 flags);
-#endif				/* ACPI_FUTURE_USAGE */
 
 /*
  * exnames - AML namestring support
diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h
index 6f70826..e1dd784 100644
--- a/drivers/acpi/acpica/aclocal.h
+++ b/drivers/acpi/acpica/aclocal.h
@@ -83,10 +83,8 @@
 #define ACPI_MTX_EVENTS                 3	/* Data for ACPI events */
 #define ACPI_MTX_CACHES                 4	/* Internal caches, general purposes */
 #define ACPI_MTX_MEMORY                 5	/* Debug memory tracking lists */
-#define ACPI_MTX_DEBUG_CMD_COMPLETE     6	/* AML debugger */
-#define ACPI_MTX_DEBUG_CMD_READY        7	/* AML debugger */
 
-#define ACPI_MAX_MUTEX                  7
+#define ACPI_MAX_MUTEX                  5
 #define ACPI_NUM_MUTEX                  ACPI_MAX_MUTEX+1
 
 /* Lock structure for reader/writer interfaces */
@@ -111,6 +109,14 @@
 
 #define ACPI_MUTEX_NOT_ACQUIRED         (acpi_thread_id) 0
 
+/* This Thread ID means an invalid thread ID */
+
+#ifdef ACPI_OS_INVALID_THREAD_ID
+#define ACPI_INVALID_THREAD_ID          ACPI_OS_INVALID_THREAD_ID
+#else
+#define ACPI_INVALID_THREAD_ID          ((acpi_thread_id) 0xFFFFFFFF)
+#endif
+
 /* Table for the global mutexes */
 
 struct acpi_mutex_info {
@@ -287,13 +293,17 @@
 #define ACPI_BTYPE_BUFFER_FIELD         0x00002000
 #define ACPI_BTYPE_DDB_HANDLE           0x00004000
 #define ACPI_BTYPE_DEBUG_OBJECT         0x00008000
-#define ACPI_BTYPE_REFERENCE            0x00010000
+#define ACPI_BTYPE_REFERENCE_OBJECT     0x00010000	/* From Index(), ref_of(), etc (type6_opcodes) */
 #define ACPI_BTYPE_RESOURCE             0x00020000
+#define ACPI_BTYPE_NAMED_REFERENCE      0x00040000	/* Generic unresolved Name or Namepath */
 
 #define ACPI_BTYPE_COMPUTE_DATA         (ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING | ACPI_BTYPE_BUFFER)
 
 #define ACPI_BTYPE_DATA                 (ACPI_BTYPE_COMPUTE_DATA  | ACPI_BTYPE_PACKAGE)
-#define ACPI_BTYPE_DATA_REFERENCE       (ACPI_BTYPE_DATA | ACPI_BTYPE_REFERENCE | ACPI_BTYPE_DDB_HANDLE)
+
+	/* Used by Copy, de_ref_of, Store, Printf, Fprintf */
+
+#define ACPI_BTYPE_DATA_REFERENCE       (ACPI_BTYPE_DATA | ACPI_BTYPE_REFERENCE_OBJECT | ACPI_BTYPE_DDB_HANDLE)
 #define ACPI_BTYPE_DEVICE_OBJECTS       (ACPI_BTYPE_DEVICE | ACPI_BTYPE_THERMAL | ACPI_BTYPE_PROCESSOR)
 #define ACPI_BTYPE_OBJECTS_AND_REFS     0x0001FFFF	/* ARG or LOCAL */
 #define ACPI_BTYPE_ALL_OBJECTS          0x0000FFFF
@@ -848,7 +858,7 @@
 #define ACPI_PARSEOP_PARAMLIST          0x02
 #define ACPI_PARSEOP_EMPTY_TERMLIST     0x04
 #define ACPI_PARSEOP_PREDEF_CHECKED     0x08
-#define ACPI_PARSEOP_SPECIAL            0x10
+#define ACPI_PARSEOP_CLOSING_PAREN      0x10
 #define ACPI_PARSEOP_COMPOUND           0x20
 #define ACPI_PARSEOP_ASSIGNMENT         0x40
 
diff --git a/drivers/acpi/acpica/acnamesp.h b/drivers/acpi/acpica/acnamesp.h
index ea0d907..5d261c9 100644
--- a/drivers/acpi/acpica/acnamesp.h
+++ b/drivers/acpi/acpica/acnamesp.h
@@ -193,9 +193,7 @@
 /*
  * nsdump - Namespace dump/print utilities
  */
-#ifdef	ACPI_FUTURE_USAGE
 void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth);
-#endif				/* ACPI_FUTURE_USAGE */
 
 void acpi_ns_dump_entry(acpi_handle handle, u32 debug_level);
 
@@ -208,7 +206,6 @@
 acpi_ns_dump_one_object(acpi_handle obj_handle,
 			u32 level, void *context, void **return_value);
 
-#ifdef	ACPI_FUTURE_USAGE
 void
 acpi_ns_dump_objects(acpi_object_type type,
 		     u8 display_type,
@@ -220,7 +217,6 @@
 			  u8 display_type,
 			  u32 max_depth,
 			  acpi_owner_id owner_id, acpi_handle start_handle);
-#endif				/* ACPI_FUTURE_USAGE */
 
 /*
  * nseval - Namespace evaluation functions
diff --git a/drivers/acpi/acpica/acopcode.h b/drivers/acpi/acpica/acopcode.h
index fd85ad0..f9acf92 100644
--- a/drivers/acpi/acpica/acopcode.h
+++ b/drivers/acpi/acpica/acopcode.h
@@ -211,7 +211,7 @@
 #define ARGI_ARG4                       ARG_NONE
 #define ARGI_ARG5                       ARG_NONE
 #define ARGI_ARG6                       ARG_NONE
-#define ARGI_BANK_FIELD_OP              ARGI_INVALID_OPCODE
+#define ARGI_BANK_FIELD_OP              ARGI_LIST1 (ARGI_INTEGER)
 #define ARGI_BIT_AND_OP                 ARGI_LIST3 (ARGI_INTEGER,    ARGI_INTEGER,       ARGI_TARGETREF)
 #define ARGI_BIT_NAND_OP                ARGI_LIST3 (ARGI_INTEGER,    ARGI_INTEGER,       ARGI_TARGETREF)
 #define ARGI_BIT_NOR_OP                 ARGI_LIST3 (ARGI_INTEGER,    ARGI_INTEGER,       ARGI_TARGETREF)
@@ -307,7 +307,7 @@
 #define ARGI_SLEEP_OP                   ARGI_LIST1 (ARGI_INTEGER)
 #define ARGI_STALL_OP                   ARGI_LIST1 (ARGI_INTEGER)
 #define ARGI_STATICSTRING_OP            ARGI_INVALID_OPCODE
-#define ARGI_STORE_OP                   ARGI_LIST2 (ARGI_DATAREFOBJ, ARGI_TARGETREF)
+#define ARGI_STORE_OP                   ARGI_LIST2 (ARGI_DATAREFOBJ, ARGI_STORE_TARGET)
 #define ARGI_STRING_OP                  ARGI_INVALID_OPCODE
 #define ARGI_SUBTRACT_OP                ARGI_LIST3 (ARGI_INTEGER,    ARGI_INTEGER,       ARGI_TARGETREF)
 #define ARGI_THERMAL_ZONE_OP            ARGI_INVALID_OPCODE
diff --git a/drivers/acpi/acpica/acparser.h b/drivers/acpi/acpica/acparser.h
index 6021ccf..8fc8c7c 100644
--- a/drivers/acpi/acpica/acparser.h
+++ b/drivers/acpi/acpica/acparser.h
@@ -194,10 +194,8 @@
 
 union acpi_parse_object *acpi_ps_get_arg(union acpi_parse_object *op, u32 argn);
 
-#ifdef	ACPI_FUTURE_USAGE
 union acpi_parse_object *acpi_ps_get_depth_next(union acpi_parse_object *origin,
 						union acpi_parse_object *op);
-#endif				/* ACPI_FUTURE_USAGE */
 
 /*
  * pswalk - parse tree walk routines
@@ -235,9 +233,7 @@
 
 u8 acpi_ps_is_leading_char(u32 c);
 
-#ifdef	ACPI_FUTURE_USAGE
 u32 acpi_ps_get_name(union acpi_parse_object *op);
-#endif				/* ACPI_FUTURE_USAGE */
 
 void acpi_ps_set_name(union acpi_parse_object *op, u32 name);
 
diff --git a/drivers/acpi/acpica/actables.h b/drivers/acpi/acpica/actables.h
index f7731f2..591ea95 100644
--- a/drivers/acpi/acpica/actables.h
+++ b/drivers/acpi/acpica/actables.h
@@ -85,7 +85,7 @@
 /*
  * tbfadt - FADT parse/convert/validate
  */
-void acpi_tb_parse_fadt(u32 table_index);
+void acpi_tb_parse_fadt(void);
 
 void acpi_tb_create_local_fadt(struct acpi_table_header *table, u32 length);
 
@@ -138,8 +138,6 @@
  */
 acpi_status acpi_tb_initialize_facs(void);
 
-u8 acpi_tb_tables_loaded(void);
-
 void
 acpi_tb_print_table_header(acpi_physical_address address,
 			   struct acpi_table_header *header);
diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h
index fb2aa50..8b8fef6 100644
--- a/drivers/acpi/acpica/acutils.h
+++ b/drivers/acpi/acpica/acutils.h
@@ -635,9 +635,7 @@
 acpi_ut_free_and_track(void *address,
 		       u32 component, const char *module, u32 line);
 
-#ifdef	ACPI_FUTURE_USAGE
 void acpi_ut_dump_allocation_info(void);
-#endif				/* ACPI_FUTURE_USAGE */
 
 void acpi_ut_dump_allocations(u32 component, const char *module);
 
diff --git a/drivers/acpi/acpica/amlcode.h b/drivers/acpi/acpica/amlcode.h
index be9fd00..883f20c 100644
--- a/drivers/acpi/acpica/amlcode.h
+++ b/drivers/acpi/acpica/amlcode.h
@@ -277,14 +277,15 @@
 #define ARGI_TARGETREF              0x0F	/* Target, subject to implicit conversion */
 #define ARGI_FIXED_TARGET           0x10	/* Target, no implicit conversion */
 #define ARGI_SIMPLE_TARGET          0x11	/* Name, Local, Arg -- no implicit conversion */
+#define ARGI_STORE_TARGET           0x12	/* Target for store is TARGETREF + package objects */
 
 /* Multiple/complex types */
 
-#define ARGI_DATAOBJECT             0x12	/* Buffer, String, package or reference to a node - Used only by size_of operator */
-#define ARGI_COMPLEXOBJ             0x13	/* Buffer, String, or package (Used by INDEX op only) */
-#define ARGI_REF_OR_STRING          0x14	/* Reference or String (Used by DEREFOF op only) */
-#define ARGI_REGION_OR_BUFFER       0x15	/* Used by LOAD op only */
-#define ARGI_DATAREFOBJ             0x16
+#define ARGI_DATAOBJECT             0x13	/* Buffer, String, package or reference to a node - Used only by size_of operator */
+#define ARGI_COMPLEXOBJ             0x14	/* Buffer, String, or package (Used by INDEX op only) */
+#define ARGI_REF_OR_STRING          0x15	/* Reference or String (Used by DEREFOF op only) */
+#define ARGI_REGION_OR_BUFFER       0x16	/* Used by LOAD op only */
+#define ARGI_DATAREFOBJ             0x17
 
 /* Note: types above can expand to 0x1F maximum */
 
diff --git a/drivers/acpi/acpica/dbcmds.c b/drivers/acpi/acpica/dbcmds.c
new file mode 100644
index 0000000..30414b3d
--- /dev/null
+++ b/drivers/acpi/acpica/dbcmds.c
@@ -0,0 +1,1187 @@
+/*******************************************************************************
+ *
+ * Module Name: dbcmds - Miscellaneous debug commands and output routines
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2015, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acevents.h"
+#include "acdebug.h"
+#include "acnamesp.h"
+#include "acresrc.h"
+#include "actables.h"
+
+#define _COMPONENT          ACPI_CA_DEBUGGER
+ACPI_MODULE_NAME("dbcmds")
+
+/* Local prototypes */
+static void
+acpi_dm_compare_aml_resources(u8 *aml1_buffer,
+			      acpi_rsdesc_size aml1_buffer_length,
+			      u8 *aml2_buffer,
+			      acpi_rsdesc_size aml2_buffer_length);
+
+static acpi_status
+acpi_dm_test_resource_conversion(struct acpi_namespace_node *node, char *name);
+
+static acpi_status
+acpi_db_resource_callback(struct acpi_resource *resource, void *context);
+
+static acpi_status
+acpi_db_device_resources(acpi_handle obj_handle,
+			 u32 nesting_level, void *context, void **return_value);
+
+static void acpi_db_do_one_sleep_state(u8 sleep_state);
+
+static char *acpi_db_trace_method_name = NULL;
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_convert_to_node
+ *
+ * PARAMETERS:  in_string           - String to convert
+ *
+ * RETURN:      Pointer to a NS node
+ *
+ * DESCRIPTION: Convert a string to a valid NS pointer. Handles numeric or
+ *              alphanumeric strings.
+ *
+ ******************************************************************************/
+
+struct acpi_namespace_node *acpi_db_convert_to_node(char *in_string)
+{
+	struct acpi_namespace_node *node;
+	acpi_size address;
+
+	if ((*in_string >= 0x30) && (*in_string <= 0x39)) {
+
+		/* Numeric argument, convert */
+
+		address = strtoul(in_string, NULL, 16);
+		node = ACPI_TO_POINTER(address);
+		if (!acpi_os_readable(node, sizeof(struct acpi_namespace_node))) {
+			acpi_os_printf("Address %p is invalid", node);
+			return (NULL);
+		}
+
+		/* Make sure pointer is valid NS node */
+
+		if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) {
+			acpi_os_printf
+			    ("Address %p is not a valid namespace node [%s]\n",
+			     node, acpi_ut_get_descriptor_name(node));
+			return (NULL);
+		}
+	} else {
+		/*
+		 * Alpha argument: The parameter is a name string that must be
+		 * resolved to a Namespace object.
+		 */
+		node = acpi_db_local_ns_lookup(in_string);
+		if (!node) {
+			acpi_os_printf
+			    ("Could not find [%s] in namespace, defaulting to root node\n",
+			     in_string);
+			node = acpi_gbl_root_node;
+		}
+	}
+
+	return (node);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_sleep
+ *
+ * PARAMETERS:  object_arg          - Desired sleep state (0-5). NULL means
+ *                                    invoke all possible sleep states.
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Simulate sleep/wake sequences
+ *
+ ******************************************************************************/
+
+acpi_status acpi_db_sleep(char *object_arg)
+{
+	u8 sleep_state;
+	u32 i;
+
+	ACPI_FUNCTION_TRACE(acpi_db_sleep);
+
+	/* Null input (no arguments) means to invoke all sleep states */
+
+	if (!object_arg) {
+		acpi_os_printf("Invoking all possible sleep states, 0-%d\n",
+			       ACPI_S_STATES_MAX);
+
+		for (i = 0; i <= ACPI_S_STATES_MAX; i++) {
+			acpi_db_do_one_sleep_state((u8)i);
+		}
+
+		return_ACPI_STATUS(AE_OK);
+	}
+
+	/* Convert argument to binary and invoke the sleep state */
+
+	sleep_state = (u8)strtoul(object_arg, NULL, 0);
+	acpi_db_do_one_sleep_state(sleep_state);
+	return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_do_one_sleep_state
+ *
+ * PARAMETERS:  sleep_state         - Desired sleep state (0-5)
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Simulate a sleep/wake sequence
+ *
+ ******************************************************************************/
+
+static void acpi_db_do_one_sleep_state(u8 sleep_state)
+{
+	acpi_status status;
+	u8 sleep_type_a;
+	u8 sleep_type_b;
+
+	/* Validate parameter */
+
+	if (sleep_state > ACPI_S_STATES_MAX) {
+		acpi_os_printf("Sleep state %d out of range (%d max)\n",
+			       sleep_state, ACPI_S_STATES_MAX);
+		return;
+	}
+
+	acpi_os_printf("\n---- Invoking sleep state S%d (%s):\n",
+		       sleep_state, acpi_gbl_sleep_state_names[sleep_state]);
+
+	/* Get the values for the sleep type registers (for display only) */
+
+	status =
+	    acpi_get_sleep_type_data(sleep_state, &sleep_type_a, &sleep_type_b);
+	if (ACPI_FAILURE(status)) {
+		acpi_os_printf("Could not evaluate [%s] method, %s\n",
+			       acpi_gbl_sleep_state_names[sleep_state],
+			       acpi_format_exception(status));
+		return;
+	}
+
+	acpi_os_printf
+	    ("Register values for sleep state S%d: Sleep-A: %.2X, Sleep-B: %.2X\n",
+	     sleep_state, sleep_type_a, sleep_type_b);
+
+	/* Invoke the various sleep/wake interfaces */
+
+	acpi_os_printf("**** Sleep: Prepare to sleep (S%d) ****\n",
+		       sleep_state);
+	status = acpi_enter_sleep_state_prep(sleep_state);
+	if (ACPI_FAILURE(status)) {
+		goto error_exit;
+	}
+
+	acpi_os_printf("**** Sleep: Going to sleep (S%d) ****\n", sleep_state);
+	status = acpi_enter_sleep_state(sleep_state);
+	if (ACPI_FAILURE(status)) {
+		goto error_exit;
+	}
+
+	acpi_os_printf("**** Wake: Prepare to return from sleep (S%d) ****\n",
+		       sleep_state);
+	status = acpi_leave_sleep_state_prep(sleep_state);
+	if (ACPI_FAILURE(status)) {
+		goto error_exit;
+	}
+
+	acpi_os_printf("**** Wake: Return from sleep (S%d) ****\n",
+		       sleep_state);
+	status = acpi_leave_sleep_state(sleep_state);
+	if (ACPI_FAILURE(status)) {
+		goto error_exit;
+	}
+
+	return;
+
+error_exit:
+	ACPI_EXCEPTION((AE_INFO, status, "During invocation of sleep state S%d",
+			sleep_state));
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_display_locks
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Display information about internal mutexes.
+ *
+ ******************************************************************************/
+
+void acpi_db_display_locks(void)
+{
+	u32 i;
+
+	for (i = 0; i < ACPI_MAX_MUTEX; i++) {
+		acpi_os_printf("%26s : %s\n", acpi_ut_get_mutex_name(i),
+			       acpi_gbl_mutex_info[i].thread_id ==
+			       ACPI_MUTEX_NOT_ACQUIRED ? "Locked" : "Unlocked");
+	}
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_display_table_info
+ *
+ * PARAMETERS:  table_arg           - Name of table to be displayed
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Display information about loaded tables. Current
+ *              implementation displays all loaded tables.
+ *
+ ******************************************************************************/
+
+void acpi_db_display_table_info(char *table_arg)
+{
+	u32 i;
+	struct acpi_table_desc *table_desc;
+	acpi_status status;
+
+	/* Header */
+
+	acpi_os_printf("Idx ID  Status Type                    "
+		       "TableHeader (Sig, Address, Length, Misc)\n");
+
+	/* Walk the entire root table list */
+
+	for (i = 0; i < acpi_gbl_root_table_list.current_table_count; i++) {
+		table_desc = &acpi_gbl_root_table_list.tables[i];
+
+		/* Index and Table ID */
+
+		acpi_os_printf("%3u %.2u ", i, table_desc->owner_id);
+
+		/* Decode the table flags */
+
+		if (!(table_desc->flags & ACPI_TABLE_IS_LOADED)) {
+			acpi_os_printf("NotLoaded ");
+		} else {
+			acpi_os_printf(" Loaded ");
+		}
+
+		switch (table_desc->flags & ACPI_TABLE_ORIGIN_MASK) {
+		case ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL:
+
+			acpi_os_printf("External/virtual ");
+			break;
+
+		case ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL:
+
+			acpi_os_printf("Internal/physical ");
+			break;
+
+		case ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL:
+
+			acpi_os_printf("Internal/virtual ");
+			break;
+
+		default:
+
+			acpi_os_printf("INVALID TYPE    ");
+			break;
+		}
+
+		/* Make sure that the table is mapped */
+
+		status = acpi_tb_validate_table(table_desc);
+		if (ACPI_FAILURE(status)) {
+			return;
+		}
+
+		/* Dump the table header */
+
+		if (table_desc->pointer) {
+			acpi_tb_print_table_header(table_desc->address,
+						   table_desc->pointer);
+		} else {
+			/* If the pointer is null, the table has been unloaded */
+
+			ACPI_INFO((AE_INFO, "%4.4s - Table has been unloaded",
+				   table_desc->signature.ascii));
+		}
+	}
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_unload_acpi_table
+ *
+ * PARAMETERS:  object_name         - Namespace pathname for an object that
+ *                                    is owned by the table to be unloaded
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Unload an ACPI table, via any namespace node that is owned
+ *              by the table.
+ *
+ ******************************************************************************/
+
+void acpi_db_unload_acpi_table(char *object_name)
+{
+	struct acpi_namespace_node *node;
+	acpi_status status;
+
+	/* Translate name to an Named object */
+
+	node = acpi_db_convert_to_node(object_name);
+	if (!node) {
+		return;
+	}
+
+	status = acpi_unload_parent_table(ACPI_CAST_PTR(acpi_handle, node));
+	if (ACPI_SUCCESS(status)) {
+		acpi_os_printf("Parent of [%s] (%p) unloaded and uninstalled\n",
+			       object_name, node);
+	} else {
+		acpi_os_printf("%s, while unloading parent table of [%s]\n",
+			       acpi_format_exception(status), object_name);
+	}
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_send_notify
+ *
+ * PARAMETERS:  name                - Name of ACPI object where to send notify
+ *              value               - Value of the notify to send.
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Send an ACPI notification. The value specified is sent to the
+ *              named object as an ACPI notify.
+ *
+ ******************************************************************************/
+
+void acpi_db_send_notify(char *name, u32 value)
+{
+	struct acpi_namespace_node *node;
+	acpi_status status;
+
+	/* Translate name to an Named object */
+
+	node = acpi_db_convert_to_node(name);
+	if (!node) {
+		return;
+	}
+
+	/* Dispatch the notify if legal */
+
+	if (acpi_ev_is_notify_object(node)) {
+		status = acpi_ev_queue_notify_request(node, value);
+		if (ACPI_FAILURE(status)) {
+			acpi_os_printf("Could not queue notify\n");
+		}
+	} else {
+		acpi_os_printf("Named object [%4.4s] Type %s, "
+			       "must be Device/Thermal/Processor type\n",
+			       acpi_ut_get_node_name(node),
+			       acpi_ut_get_type_name(node->type));
+	}
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_display_interfaces
+ *
+ * PARAMETERS:  action_arg          - Null, "install", or "remove"
+ *              interface_name_arg  - Name for install/remove options
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Display or modify the global _OSI interface list
+ *
+ ******************************************************************************/
+
+void acpi_db_display_interfaces(char *action_arg, char *interface_name_arg)
+{
+	struct acpi_interface_info *next_interface;
+	char *sub_string;
+	acpi_status status;
+
+	/* If no arguments, just display current interface list */
+
+	if (!action_arg) {
+		(void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex,
+					    ACPI_WAIT_FOREVER);
+
+		next_interface = acpi_gbl_supported_interfaces;
+		while (next_interface) {
+			if (!(next_interface->flags & ACPI_OSI_INVALID)) {
+				acpi_os_printf("%s\n", next_interface->name);
+			}
+
+			next_interface = next_interface->next;
+		}
+
+		acpi_os_release_mutex(acpi_gbl_osi_mutex);
+		return;
+	}
+
+	/* If action_arg exists, so must interface_name_arg */
+
+	if (!interface_name_arg) {
+		acpi_os_printf("Missing Interface Name argument\n");
+		return;
+	}
+
+	/* Uppercase the action for match below */
+
+	acpi_ut_strupr(action_arg);
+
+	/* install - install an interface */
+
+	sub_string = strstr("INSTALL", action_arg);
+	if (sub_string) {
+		status = acpi_install_interface(interface_name_arg);
+		if (ACPI_FAILURE(status)) {
+			acpi_os_printf("%s, while installing \"%s\"\n",
+				       acpi_format_exception(status),
+				       interface_name_arg);
+		}
+		return;
+	}
+
+	/* remove - remove an interface */
+
+	sub_string = strstr("REMOVE", action_arg);
+	if (sub_string) {
+		status = acpi_remove_interface(interface_name_arg);
+		if (ACPI_FAILURE(status)) {
+			acpi_os_printf("%s, while removing \"%s\"\n",
+				       acpi_format_exception(status),
+				       interface_name_arg);
+		}
+		return;
+	}
+
+	/* Invalid action_arg */
+
+	acpi_os_printf("Invalid action argument: %s\n", action_arg);
+	return;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_display_template
+ *
+ * PARAMETERS:  buffer_arg          - Buffer name or address
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Dump a buffer that contains a resource template
+ *
+ ******************************************************************************/
+
+void acpi_db_display_template(char *buffer_arg)
+{
+	struct acpi_namespace_node *node;
+	acpi_status status;
+	struct acpi_buffer return_buffer;
+
+	/* Translate buffer_arg to an Named object */
+
+	node = acpi_db_convert_to_node(buffer_arg);
+	if (!node || (node == acpi_gbl_root_node)) {
+		acpi_os_printf("Invalid argument: %s\n", buffer_arg);
+		return;
+	}
+
+	/* We must have a buffer object */
+
+	if (node->type != ACPI_TYPE_BUFFER) {
+		acpi_os_printf
+		    ("Not a Buffer object, cannot be a template: %s\n",
+		     buffer_arg);
+		return;
+	}
+
+	return_buffer.length = ACPI_DEBUG_BUFFER_SIZE;
+	return_buffer.pointer = acpi_gbl_db_buffer;
+
+	/* Attempt to convert the raw buffer to a resource list */
+
+	status = acpi_rs_create_resource_list(node->object, &return_buffer);
+
+	acpi_db_set_output_destination(ACPI_DB_REDIRECTABLE_OUTPUT);
+	acpi_dbg_level |= ACPI_LV_RESOURCES;
+
+	if (ACPI_FAILURE(status)) {
+		acpi_os_printf
+		    ("Could not convert Buffer to a resource list: %s, %s\n",
+		     buffer_arg, acpi_format_exception(status));
+		goto dump_buffer;
+	}
+
+	/* Now we can dump the resource list */
+
+	acpi_rs_dump_resource_list(ACPI_CAST_PTR(struct acpi_resource,
+						 return_buffer.pointer));
+
+dump_buffer:
+	acpi_os_printf("\nRaw data buffer:\n");
+	acpi_ut_debug_dump_buffer((u8 *)node->object->buffer.pointer,
+				  node->object->buffer.length,
+				  DB_BYTE_DISPLAY, ACPI_UINT32_MAX);
+
+	acpi_db_set_output_destination(ACPI_DB_CONSOLE_OUTPUT);
+	return;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_dm_compare_aml_resources
+ *
+ * PARAMETERS:  aml1_buffer         - Contains first resource list
+ *              aml1_buffer_length  - Length of first resource list
+ *              aml2_buffer         - Contains second resource list
+ *              aml2_buffer_length  - Length of second resource list
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Compare two AML resource lists, descriptor by descriptor (in
+ *              order to isolate a miscompare to an individual resource)
+ *
+ ******************************************************************************/
+
+static void
+acpi_dm_compare_aml_resources(u8 *aml1_buffer,
+			      acpi_rsdesc_size aml1_buffer_length,
+			      u8 *aml2_buffer,
+			      acpi_rsdesc_size aml2_buffer_length)
+{
+	u8 *aml1;
+	u8 *aml2;
+	u8 *aml1_end;
+	u8 *aml2_end;
+	acpi_rsdesc_size aml1_length;
+	acpi_rsdesc_size aml2_length;
+	acpi_rsdesc_size offset = 0;
+	u8 resource_type;
+	u32 count = 0;
+	u32 i;
+
+	/* Compare overall buffer sizes (may be different due to size rounding) */
+
+	if (aml1_buffer_length != aml2_buffer_length) {
+		acpi_os_printf("**** Buffer length mismatch in converted "
+			       "AML: Original %X, New %X ****\n",
+			       aml1_buffer_length, aml2_buffer_length);
+	}
+
+	aml1 = aml1_buffer;
+	aml2 = aml2_buffer;
+	aml1_end = aml1_buffer + aml1_buffer_length;
+	aml2_end = aml2_buffer + aml2_buffer_length;
+
+	/* Walk the descriptor lists, comparing each descriptor */
+
+	while ((aml1 < aml1_end) && (aml2 < aml2_end)) {
+
+		/* Get the lengths of each descriptor */
+
+		aml1_length = acpi_ut_get_descriptor_length(aml1);
+		aml2_length = acpi_ut_get_descriptor_length(aml2);
+		resource_type = acpi_ut_get_resource_type(aml1);
+
+		/* Check for descriptor length match */
+
+		if (aml1_length != aml2_length) {
+			acpi_os_printf
+			    ("**** Length mismatch in descriptor [%.2X] type %2.2X, "
+			     "Offset %8.8X Len1 %X, Len2 %X ****\n", count,
+			     resource_type, offset, aml1_length, aml2_length);
+		}
+
+		/* Check for descriptor byte match */
+
+		else if (memcmp(aml1, aml2, aml1_length)) {
+			acpi_os_printf
+			    ("**** Data mismatch in descriptor [%.2X] type %2.2X, "
+			     "Offset %8.8X ****\n", count, resource_type,
+			     offset);
+
+			for (i = 0; i < aml1_length; i++) {
+				if (aml1[i] != aml2[i]) {
+					acpi_os_printf
+					    ("Mismatch at byte offset %.2X: is %2.2X, "
+					     "should be %2.2X\n", i, aml2[i],
+					     aml1[i]);
+				}
+			}
+		}
+
+		/* Exit on end_tag descriptor */
+
+		if (resource_type == ACPI_RESOURCE_NAME_END_TAG) {
+			return;
+		}
+
+		/* Point to next descriptor in each buffer */
+
+		count++;
+		offset += aml1_length;
+		aml1 += aml1_length;
+		aml2 += aml2_length;
+	}
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_dm_test_resource_conversion
+ *
+ * PARAMETERS:  node                - Parent device node
+ *              name                - resource method name (_CRS)
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Compare the original AML with a conversion of the AML to
+ *              internal resource list, then back to AML.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_dm_test_resource_conversion(struct acpi_namespace_node *node, char *name)
+{
+	acpi_status status;
+	struct acpi_buffer return_buffer;
+	struct acpi_buffer resource_buffer;
+	struct acpi_buffer new_aml;
+	union acpi_object *original_aml;
+
+	acpi_os_printf("Resource Conversion Comparison:\n");
+
+	new_aml.length = ACPI_ALLOCATE_LOCAL_BUFFER;
+	return_buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
+	resource_buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
+
+	/* Get the original _CRS AML resource template */
+
+	status = acpi_evaluate_object(node, name, NULL, &return_buffer);
+	if (ACPI_FAILURE(status)) {
+		acpi_os_printf("Could not obtain %s: %s\n",
+			       name, acpi_format_exception(status));
+		return (status);
+	}
+
+	/* Get the AML resource template, converted to internal resource structs */
+
+	status = acpi_get_current_resources(node, &resource_buffer);
+	if (ACPI_FAILURE(status)) {
+		acpi_os_printf("AcpiGetCurrentResources failed: %s\n",
+			       acpi_format_exception(status));
+		goto exit1;
+	}
+
+	/* Convert internal resource list to external AML resource template */
+
+	status = acpi_rs_create_aml_resources(&resource_buffer, &new_aml);
+	if (ACPI_FAILURE(status)) {
+		acpi_os_printf("AcpiRsCreateAmlResources failed: %s\n",
+			       acpi_format_exception(status));
+		goto exit2;
+	}
+
+	/* Compare original AML to the newly created AML resource list */
+
+	original_aml = return_buffer.pointer;
+
+	acpi_dm_compare_aml_resources(original_aml->buffer.pointer,
+				      (acpi_rsdesc_size) original_aml->buffer.
+				      length, new_aml.pointer,
+				      (acpi_rsdesc_size) new_aml.length);
+
+	/* Cleanup and exit */
+
+	ACPI_FREE(new_aml.pointer);
+exit2:
+	ACPI_FREE(resource_buffer.pointer);
+exit1:
+	ACPI_FREE(return_buffer.pointer);
+	return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_resource_callback
+ *
+ * PARAMETERS:  acpi_walk_resource_callback
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Simple callback to exercise acpi_walk_resources and
+ *              acpi_walk_resource_buffer.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_db_resource_callback(struct acpi_resource *resource, void *context)
+{
+
+	return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_device_resources
+ *
+ * PARAMETERS:  acpi_walk_callback
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Display the _PRT/_CRS/_PRS resources for a device object.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_db_device_resources(acpi_handle obj_handle,
+			 u32 nesting_level, void *context, void **return_value)
+{
+	struct acpi_namespace_node *node;
+	struct acpi_namespace_node *prt_node = NULL;
+	struct acpi_namespace_node *crs_node = NULL;
+	struct acpi_namespace_node *prs_node = NULL;
+	struct acpi_namespace_node *aei_node = NULL;
+	char *parent_path;
+	struct acpi_buffer return_buffer;
+	acpi_status status;
+
+	node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle);
+	parent_path = acpi_ns_get_external_pathname(node);
+	if (!parent_path) {
+		return (AE_NO_MEMORY);
+	}
+
+	/* Get handles to the resource methods for this device */
+
+	(void)acpi_get_handle(node, METHOD_NAME__PRT,
+			      ACPI_CAST_PTR(acpi_handle, &prt_node));
+	(void)acpi_get_handle(node, METHOD_NAME__CRS,
+			      ACPI_CAST_PTR(acpi_handle, &crs_node));
+	(void)acpi_get_handle(node, METHOD_NAME__PRS,
+			      ACPI_CAST_PTR(acpi_handle, &prs_node));
+	(void)acpi_get_handle(node, METHOD_NAME__AEI,
+			      ACPI_CAST_PTR(acpi_handle, &aei_node));
+
+	if (!prt_node && !crs_node && !prs_node && !aei_node) {
+		goto cleanup;	/* Nothing to do */
+	}
+
+	acpi_os_printf("\nDevice: %s\n", parent_path);
+
+	/* Prepare for a return object of arbitrary size */
+
+	return_buffer.pointer = acpi_gbl_db_buffer;
+	return_buffer.length = ACPI_DEBUG_BUFFER_SIZE;
+
+	/* _PRT */
+
+	if (prt_node) {
+		acpi_os_printf("Evaluating _PRT\n");
+
+		status =
+		    acpi_evaluate_object(prt_node, NULL, NULL, &return_buffer);
+		if (ACPI_FAILURE(status)) {
+			acpi_os_printf("Could not evaluate _PRT: %s\n",
+				       acpi_format_exception(status));
+			goto get_crs;
+		}
+
+		return_buffer.pointer = acpi_gbl_db_buffer;
+		return_buffer.length = ACPI_DEBUG_BUFFER_SIZE;
+
+		status = acpi_get_irq_routing_table(node, &return_buffer);
+		if (ACPI_FAILURE(status)) {
+			acpi_os_printf("GetIrqRoutingTable failed: %s\n",
+				       acpi_format_exception(status));
+			goto get_crs;
+		}
+
+		acpi_rs_dump_irq_list(ACPI_CAST_PTR(u8, acpi_gbl_db_buffer));
+	}
+
+	/* _CRS */
+
+get_crs:
+	if (crs_node) {
+		acpi_os_printf("Evaluating _CRS\n");
+
+		return_buffer.pointer = acpi_gbl_db_buffer;
+		return_buffer.length = ACPI_DEBUG_BUFFER_SIZE;
+
+		status =
+		    acpi_evaluate_object(crs_node, NULL, NULL, &return_buffer);
+		if (ACPI_FAILURE(status)) {
+			acpi_os_printf("Could not evaluate _CRS: %s\n",
+				       acpi_format_exception(status));
+			goto get_prs;
+		}
+
+		/* This code exercises the acpi_walk_resources interface */
+
+		status = acpi_walk_resources(node, METHOD_NAME__CRS,
+					     acpi_db_resource_callback, NULL);
+		if (ACPI_FAILURE(status)) {
+			acpi_os_printf("AcpiWalkResources failed: %s\n",
+				       acpi_format_exception(status));
+			goto get_prs;
+		}
+
+		/* Get the _CRS resource list (test ALLOCATE buffer) */
+
+		return_buffer.pointer = NULL;
+		return_buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
+
+		status = acpi_get_current_resources(node, &return_buffer);
+		if (ACPI_FAILURE(status)) {
+			acpi_os_printf("AcpiGetCurrentResources failed: %s\n",
+				       acpi_format_exception(status));
+			goto get_prs;
+		}
+
+		/* This code exercises the acpi_walk_resource_buffer interface */
+
+		status = acpi_walk_resource_buffer(&return_buffer,
+						   acpi_db_resource_callback,
+						   NULL);
+		if (ACPI_FAILURE(status)) {
+			acpi_os_printf("AcpiWalkResourceBuffer failed: %s\n",
+				       acpi_format_exception(status));
+			goto end_crs;
+		}
+
+		/* Dump the _CRS resource list */
+
+		acpi_rs_dump_resource_list(ACPI_CAST_PTR(struct acpi_resource,
+							 return_buffer.
+							 pointer));
+
+		/*
+		 * Perform comparison of original AML to newly created AML. This
+		 * tests both the AML->Resource conversion and the Resource->AML
+		 * conversion.
+		 */
+		(void)acpi_dm_test_resource_conversion(node, METHOD_NAME__CRS);
+
+		/* Execute _SRS with the resource list */
+
+		acpi_os_printf("Evaluating _SRS\n");
+
+		status = acpi_set_current_resources(node, &return_buffer);
+		if (ACPI_FAILURE(status)) {
+			acpi_os_printf("AcpiSetCurrentResources failed: %s\n",
+				       acpi_format_exception(status));
+			goto end_crs;
+		}
+
+end_crs:
+		ACPI_FREE(return_buffer.pointer);
+	}
+
+	/* _PRS */
+
+get_prs:
+	if (prs_node) {
+		acpi_os_printf("Evaluating _PRS\n");
+
+		return_buffer.pointer = acpi_gbl_db_buffer;
+		return_buffer.length = ACPI_DEBUG_BUFFER_SIZE;
+
+		status =
+		    acpi_evaluate_object(prs_node, NULL, NULL, &return_buffer);
+		if (ACPI_FAILURE(status)) {
+			acpi_os_printf("Could not evaluate _PRS: %s\n",
+				       acpi_format_exception(status));
+			goto get_aei;
+		}
+
+		return_buffer.pointer = acpi_gbl_db_buffer;
+		return_buffer.length = ACPI_DEBUG_BUFFER_SIZE;
+
+		status = acpi_get_possible_resources(node, &return_buffer);
+		if (ACPI_FAILURE(status)) {
+			acpi_os_printf("AcpiGetPossibleResources failed: %s\n",
+				       acpi_format_exception(status));
+			goto get_aei;
+		}
+
+		acpi_rs_dump_resource_list(ACPI_CAST_PTR
+					   (struct acpi_resource,
+					    acpi_gbl_db_buffer));
+	}
+
+	/* _AEI */
+
+get_aei:
+	if (aei_node) {
+		acpi_os_printf("Evaluating _AEI\n");
+
+		return_buffer.pointer = acpi_gbl_db_buffer;
+		return_buffer.length = ACPI_DEBUG_BUFFER_SIZE;
+
+		status =
+		    acpi_evaluate_object(aei_node, NULL, NULL, &return_buffer);
+		if (ACPI_FAILURE(status)) {
+			acpi_os_printf("Could not evaluate _AEI: %s\n",
+				       acpi_format_exception(status));
+			goto cleanup;
+		}
+
+		return_buffer.pointer = acpi_gbl_db_buffer;
+		return_buffer.length = ACPI_DEBUG_BUFFER_SIZE;
+
+		status = acpi_get_event_resources(node, &return_buffer);
+		if (ACPI_FAILURE(status)) {
+			acpi_os_printf("AcpiGetEventResources failed: %s\n",
+				       acpi_format_exception(status));
+			goto cleanup;
+		}
+
+		acpi_rs_dump_resource_list(ACPI_CAST_PTR
+					   (struct acpi_resource,
+					    acpi_gbl_db_buffer));
+	}
+
+cleanup:
+	ACPI_FREE(parent_path);
+	return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_display_resources
+ *
+ * PARAMETERS:  object_arg          - String object name or object pointer.
+ *                                    NULL or "*" means "display resources for
+ *                                    all devices"
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Display the resource objects associated with a device.
+ *
+ ******************************************************************************/
+
+void acpi_db_display_resources(char *object_arg)
+{
+	struct acpi_namespace_node *node;
+
+	acpi_db_set_output_destination(ACPI_DB_REDIRECTABLE_OUTPUT);
+	acpi_dbg_level |= ACPI_LV_RESOURCES;
+
+	/* Asterisk means "display resources for all devices" */
+
+	if (!object_arg || (!strcmp(object_arg, "*"))) {
+		(void)acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
+					  ACPI_UINT32_MAX,
+					  acpi_db_device_resources, NULL, NULL,
+					  NULL);
+	} else {
+		/* Convert string to object pointer */
+
+		node = acpi_db_convert_to_node(object_arg);
+		if (node) {
+			if (node->type != ACPI_TYPE_DEVICE) {
+				acpi_os_printf
+				    ("%4.4s: Name is not a device object (%s)\n",
+				     node->name.ascii,
+				     acpi_ut_get_type_name(node->type));
+			} else {
+				(void)acpi_db_device_resources(node, 0, NULL,
+							       NULL);
+			}
+		}
+	}
+
+	acpi_db_set_output_destination(ACPI_DB_CONSOLE_OUTPUT);
+}
+
+#if (!ACPI_REDUCED_HARDWARE)
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_generate_gpe
+ *
+ * PARAMETERS:  gpe_arg             - Raw GPE number, ascii string
+ *              block_arg           - GPE block number, ascii string
+ *                                    0 or 1 for FADT GPE blocks
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Simulate firing of a GPE
+ *
+ ******************************************************************************/
+
+void acpi_db_generate_gpe(char *gpe_arg, char *block_arg)
+{
+	u32 block_number = 0;
+	u32 gpe_number;
+	struct acpi_gpe_event_info *gpe_event_info;
+
+	gpe_number = strtoul(gpe_arg, NULL, 0);
+
+	/*
+	 * If no block arg, or block arg == 0 or 1, use the FADT-defined
+	 * GPE blocks.
+	 */
+	if (block_arg) {
+		block_number = strtoul(block_arg, NULL, 0);
+		if (block_number == 1) {
+			block_number = 0;
+		}
+	}
+
+	gpe_event_info =
+	    acpi_ev_get_gpe_event_info(ACPI_TO_POINTER(block_number),
+				       gpe_number);
+	if (!gpe_event_info) {
+		acpi_os_printf("Invalid GPE\n");
+		return;
+	}
+
+	(void)acpi_ev_gpe_dispatch(NULL, gpe_event_info, gpe_number);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_generate_sci
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Simulate an SCI -- just call the SCI dispatch.
+ *
+ ******************************************************************************/
+
+void acpi_db_generate_sci(void)
+{
+	acpi_ev_sci_dispatch();
+}
+
+#endif				/* !ACPI_REDUCED_HARDWARE */
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_trace
+ *
+ * PARAMETERS:  enable_arg          - ENABLE/AML to enable tracer
+ *                                    DISABLE to disable tracer
+ *              method_arg          - Method to trace
+ *              once_arg            - Whether trace once
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Control method tracing facility
+ *
+ ******************************************************************************/
+
+void acpi_db_trace(char *enable_arg, char *method_arg, char *once_arg)
+{
+	u32 debug_level = 0;
+	u32 debug_layer = 0;
+	u32 flags = 0;
+
+	if (enable_arg) {
+		acpi_ut_strupr(enable_arg);
+	}
+
+	if (once_arg) {
+		acpi_ut_strupr(once_arg);
+	}
+
+	if (method_arg) {
+		if (acpi_db_trace_method_name) {
+			ACPI_FREE(acpi_db_trace_method_name);
+			acpi_db_trace_method_name = NULL;
+		}
+
+		acpi_db_trace_method_name =
+		    ACPI_ALLOCATE(strlen(method_arg) + 1);
+		if (!acpi_db_trace_method_name) {
+			acpi_os_printf("Failed to allocate method name (%s)\n",
+				       method_arg);
+			return;
+		}
+
+		strcpy(acpi_db_trace_method_name, method_arg);
+	}
+
+	if (!strcmp(enable_arg, "ENABLE") ||
+	    !strcmp(enable_arg, "METHOD") || !strcmp(enable_arg, "OPCODE")) {
+		if (!strcmp(enable_arg, "ENABLE")) {
+
+			/* Inherit current console settings */
+
+			debug_level = acpi_gbl_db_console_debug_level;
+			debug_layer = acpi_dbg_layer;
+		} else {
+			/* Restrict console output to trace points only */
+
+			debug_level = ACPI_LV_TRACE_POINT;
+			debug_layer = ACPI_EXECUTER;
+		}
+
+		flags = ACPI_TRACE_ENABLED;
+
+		if (!strcmp(enable_arg, "OPCODE")) {
+			flags |= ACPI_TRACE_OPCODE;
+		}
+
+		if (once_arg && !strcmp(once_arg, "ONCE")) {
+			flags |= ACPI_TRACE_ONESHOT;
+		}
+	}
+
+	(void)acpi_debug_trace(acpi_db_trace_method_name,
+			       debug_level, debug_layer, flags);
+}
diff --git a/drivers/acpi/acpica/dbconvert.c b/drivers/acpi/acpica/dbconvert.c
new file mode 100644
index 0000000..a71632c
--- /dev/null
+++ b/drivers/acpi/acpica/dbconvert.c
@@ -0,0 +1,484 @@
+/*******************************************************************************
+ *
+ * Module Name: dbconvert - debugger miscellaneous conversion routines
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2015, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acdebug.h"
+
+#define _COMPONENT          ACPI_CA_DEBUGGER
+ACPI_MODULE_NAME("dbconvert")
+
+#define DB_DEFAULT_PKG_ELEMENTS     33
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_hex_char_to_value
+ *
+ * PARAMETERS:  hex_char            - Ascii Hex digit, 0-9|a-f|A-F
+ *              return_value        - Where the converted value is returned
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Convert a single hex character to a 4-bit number (0-16).
+ *
+ ******************************************************************************/
+acpi_status acpi_db_hex_char_to_value(int hex_char, u8 *return_value)
+{
+	u8 value;
+
+	/* Digit must be ascii [0-9a-fA-F] */
+
+	if (!isxdigit(hex_char)) {
+		return (AE_BAD_HEX_CONSTANT);
+	}
+
+	if (hex_char <= 0x39) {
+		value = (u8)(hex_char - 0x30);
+	} else {
+		value = (u8)(toupper(hex_char) - 0x37);
+	}
+
+	*return_value = value;
+	return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_hex_byte_to_binary
+ *
+ * PARAMETERS:  hex_byte            - Double hex digit (0x00 - 0xFF) in format:
+ *                                    hi_byte then lo_byte.
+ *              return_value        - Where the converted value is returned
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Convert two hex characters to an 8 bit number (0 - 255).
+ *
+ ******************************************************************************/
+
+static acpi_status acpi_db_hex_byte_to_binary(char *hex_byte, u8 *return_value)
+{
+	u8 local0;
+	u8 local1;
+	acpi_status status;
+
+	/* High byte */
+
+	status = acpi_db_hex_char_to_value(hex_byte[0], &local0);
+	if (ACPI_FAILURE(status)) {
+		return (status);
+	}
+
+	/* Low byte */
+
+	status = acpi_db_hex_char_to_value(hex_byte[1], &local1);
+	if (ACPI_FAILURE(status)) {
+		return (status);
+	}
+
+	*return_value = (u8)((local0 << 4) | local1);
+	return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_convert_to_buffer
+ *
+ * PARAMETERS:  string              - Input string to be converted
+ *              object              - Where the buffer object is returned
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Convert a string to a buffer object. String is treated a list
+ *              of buffer elements, each separated by a space or comma.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_db_convert_to_buffer(char *string, union acpi_object *object)
+{
+	u32 i;
+	u32 j;
+	u32 length;
+	u8 *buffer;
+	acpi_status status;
+
+	/* Generate the final buffer length */
+
+	for (i = 0, length = 0; string[i];) {
+		i += 2;
+		length++;
+
+		while (string[i] && ((string[i] == ',') || (string[i] == ' '))) {
+			i++;
+		}
+	}
+
+	buffer = ACPI_ALLOCATE(length);
+	if (!buffer) {
+		return (AE_NO_MEMORY);
+	}
+
+	/* Convert the command line bytes to the buffer */
+
+	for (i = 0, j = 0; string[i];) {
+		status = acpi_db_hex_byte_to_binary(&string[i], &buffer[j]);
+		if (ACPI_FAILURE(status)) {
+			ACPI_FREE(buffer);
+			return (status);
+		}
+
+		j++;
+		i += 2;
+		while (string[i] && ((string[i] == ',') || (string[i] == ' '))) {
+			i++;
+		}
+	}
+
+	object->type = ACPI_TYPE_BUFFER;
+	object->buffer.pointer = buffer;
+	object->buffer.length = length;
+	return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_convert_to_package
+ *
+ * PARAMETERS:  string              - Input string to be converted
+ *              object              - Where the package object is returned
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Convert a string to a package object. Handles nested packages
+ *              via recursion with acpi_db_convert_to_object.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_db_convert_to_package(char *string, union acpi_object * object)
+{
+	char *this;
+	char *next;
+	u32 i;
+	acpi_object_type type;
+	union acpi_object *elements;
+	acpi_status status;
+
+	elements =
+	    ACPI_ALLOCATE_ZEROED(DB_DEFAULT_PKG_ELEMENTS *
+				 sizeof(union acpi_object));
+
+	this = string;
+	for (i = 0; i < (DB_DEFAULT_PKG_ELEMENTS - 1); i++) {
+		this = acpi_db_get_next_token(this, &next, &type);
+		if (!this) {
+			break;
+		}
+
+		/* Recursive call to convert each package element */
+
+		status = acpi_db_convert_to_object(type, this, &elements[i]);
+		if (ACPI_FAILURE(status)) {
+			acpi_db_delete_objects(i + 1, elements);
+			ACPI_FREE(elements);
+			return (status);
+		}
+
+		this = next;
+	}
+
+	object->type = ACPI_TYPE_PACKAGE;
+	object->package.count = i;
+	object->package.elements = elements;
+	return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_convert_to_object
+ *
+ * PARAMETERS:  type                - Object type as determined by parser
+ *              string              - Input string to be converted
+ *              object              - Where the new object is returned
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Convert a typed and tokenized string to an union acpi_object. Typing:
+ *              1) String objects were surrounded by quotes.
+ *              2) Buffer objects were surrounded by parentheses.
+ *              3) Package objects were surrounded by brackets "[]".
+ *              4) All standalone tokens are treated as integers.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_db_convert_to_object(acpi_object_type type,
+			  char *string, union acpi_object * object)
+{
+	acpi_status status = AE_OK;
+
+	switch (type) {
+	case ACPI_TYPE_STRING:
+
+		object->type = ACPI_TYPE_STRING;
+		object->string.pointer = string;
+		object->string.length = (u32)strlen(string);
+		break;
+
+	case ACPI_TYPE_BUFFER:
+
+		status = acpi_db_convert_to_buffer(string, object);
+		break;
+
+	case ACPI_TYPE_PACKAGE:
+
+		status = acpi_db_convert_to_package(string, object);
+		break;
+
+	default:
+
+		object->type = ACPI_TYPE_INTEGER;
+		status = acpi_ut_strtoul64(string, 16, &object->integer.value);
+		break;
+	}
+
+	return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_encode_pld_buffer
+ *
+ * PARAMETERS:  pld_info            - _PLD buffer struct (Using local struct)
+ *
+ * RETURN:      Encode _PLD buffer suitable for return value from _PLD
+ *
+ * DESCRIPTION: Bit-packs a _PLD buffer struct. Used to test the _PLD macros
+ *
+ ******************************************************************************/
+
+u8 *acpi_db_encode_pld_buffer(struct acpi_pld_info *pld_info)
+{
+	u32 *buffer;
+	u32 dword;
+
+	buffer = ACPI_ALLOCATE_ZEROED(ACPI_PLD_BUFFER_SIZE);
+	if (!buffer) {
+		return (NULL);
+	}
+
+	/* First 32 bits */
+
+	dword = 0;
+	ACPI_PLD_SET_REVISION(&dword, pld_info->revision);
+	ACPI_PLD_SET_IGNORE_COLOR(&dword, pld_info->ignore_color);
+	ACPI_PLD_SET_RED(&dword, pld_info->red);
+	ACPI_PLD_SET_GREEN(&dword, pld_info->green);
+	ACPI_PLD_SET_BLUE(&dword, pld_info->blue);
+	ACPI_MOVE_32_TO_32(&buffer[0], &dword);
+
+	/* Second 32 bits */
+
+	dword = 0;
+	ACPI_PLD_SET_WIDTH(&dword, pld_info->width);
+	ACPI_PLD_SET_HEIGHT(&dword, pld_info->height);
+	ACPI_MOVE_32_TO_32(&buffer[1], &dword);
+
+	/* Third 32 bits */
+
+	dword = 0;
+	ACPI_PLD_SET_USER_VISIBLE(&dword, pld_info->user_visible);
+	ACPI_PLD_SET_DOCK(&dword, pld_info->dock);
+	ACPI_PLD_SET_LID(&dword, pld_info->lid);
+	ACPI_PLD_SET_PANEL(&dword, pld_info->panel);
+	ACPI_PLD_SET_VERTICAL(&dword, pld_info->vertical_position);
+	ACPI_PLD_SET_HORIZONTAL(&dword, pld_info->horizontal_position);
+	ACPI_PLD_SET_SHAPE(&dword, pld_info->shape);
+	ACPI_PLD_SET_ORIENTATION(&dword, pld_info->group_orientation);
+	ACPI_PLD_SET_TOKEN(&dword, pld_info->group_token);
+	ACPI_PLD_SET_POSITION(&dword, pld_info->group_position);
+	ACPI_PLD_SET_BAY(&dword, pld_info->bay);
+	ACPI_MOVE_32_TO_32(&buffer[2], &dword);
+
+	/* Fourth 32 bits */
+
+	dword = 0;
+	ACPI_PLD_SET_EJECTABLE(&dword, pld_info->ejectable);
+	ACPI_PLD_SET_OSPM_EJECT(&dword, pld_info->ospm_eject_required);
+	ACPI_PLD_SET_CABINET(&dword, pld_info->cabinet_number);
+	ACPI_PLD_SET_CARD_CAGE(&dword, pld_info->card_cage_number);
+	ACPI_PLD_SET_REFERENCE(&dword, pld_info->reference);
+	ACPI_PLD_SET_ROTATION(&dword, pld_info->rotation);
+	ACPI_PLD_SET_ORDER(&dword, pld_info->order);
+	ACPI_MOVE_32_TO_32(&buffer[3], &dword);
+
+	if (pld_info->revision >= 2) {
+
+		/* Fifth 32 bits */
+
+		dword = 0;
+		ACPI_PLD_SET_VERT_OFFSET(&dword, pld_info->vertical_offset);
+		ACPI_PLD_SET_HORIZ_OFFSET(&dword, pld_info->horizontal_offset);
+		ACPI_MOVE_32_TO_32(&buffer[4], &dword);
+	}
+
+	return (ACPI_CAST_PTR(u8, buffer));
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_dump_pld_buffer
+ *
+ * PARAMETERS:  obj_desc            - Object returned from _PLD method
+ *
+ * RETURN:      None.
+ *
+ * DESCRIPTION: Dumps formatted contents of a _PLD return buffer.
+ *
+ ******************************************************************************/
+
+#define ACPI_PLD_OUTPUT     "%20s : %-6X\n"
+
+void acpi_db_dump_pld_buffer(union acpi_object *obj_desc)
+{
+	union acpi_object *buffer_desc;
+	struct acpi_pld_info *pld_info;
+	u8 *new_buffer;
+	acpi_status status;
+
+	/* Object must be of type Package with at least one Buffer element */
+
+	if (obj_desc->type != ACPI_TYPE_PACKAGE) {
+		return;
+	}
+
+	buffer_desc = &obj_desc->package.elements[0];
+	if (buffer_desc->type != ACPI_TYPE_BUFFER) {
+		return;
+	}
+
+	/* Convert _PLD buffer to local _PLD struct */
+
+	status = acpi_decode_pld_buffer(buffer_desc->buffer.pointer,
+					buffer_desc->buffer.length, &pld_info);
+	if (ACPI_FAILURE(status)) {
+		return;
+	}
+
+	/* Encode local _PLD struct back to a _PLD buffer */
+
+	new_buffer = acpi_db_encode_pld_buffer(pld_info);
+	if (!new_buffer) {
+		return;
+	}
+
+	/* The two bit-packed buffers should match */
+
+	if (memcmp(new_buffer, buffer_desc->buffer.pointer,
+		   buffer_desc->buffer.length)) {
+		acpi_os_printf
+		    ("Converted _PLD buffer does not compare. New:\n");
+
+		acpi_ut_dump_buffer(new_buffer,
+				    buffer_desc->buffer.length, DB_BYTE_DISPLAY,
+				    0);
+	}
+
+	/* First 32-bit dword */
+
+	acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Revision", pld_info->revision);
+	acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_IgnoreColor",
+		       pld_info->ignore_color);
+	acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Red", pld_info->red);
+	acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Green", pld_info->green);
+	acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Blue", pld_info->blue);
+
+	/* Second 32-bit dword */
+
+	acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Width", pld_info->width);
+	acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Height", pld_info->height);
+
+	/* Third 32-bit dword */
+
+	acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_UserVisible",
+		       pld_info->user_visible);
+	acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Dock", pld_info->dock);
+	acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Lid", pld_info->lid);
+	acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Panel", pld_info->panel);
+	acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_VerticalPosition",
+		       pld_info->vertical_position);
+	acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_HorizontalPosition",
+		       pld_info->horizontal_position);
+	acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Shape", pld_info->shape);
+	acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_GroupOrientation",
+		       pld_info->group_orientation);
+	acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_GroupToken",
+		       pld_info->group_token);
+	acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_GroupPosition",
+		       pld_info->group_position);
+	acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Bay", pld_info->bay);
+
+	/* Fourth 32-bit dword */
+
+	acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Ejectable", pld_info->ejectable);
+	acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_EjectRequired",
+		       pld_info->ospm_eject_required);
+	acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_CabinetNumber",
+		       pld_info->cabinet_number);
+	acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_CardCageNumber",
+		       pld_info->card_cage_number);
+	acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Reference", pld_info->reference);
+	acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Rotation", pld_info->rotation);
+	acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Order", pld_info->order);
+
+	/* Fifth 32-bit dword */
+
+	if (buffer_desc->buffer.length > 16) {
+		acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_VerticalOffset",
+			       pld_info->vertical_offset);
+		acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_HorizontalOffset",
+			       pld_info->horizontal_offset);
+	}
+
+	ACPI_FREE(pld_info);
+	ACPI_FREE(new_buffer);
+}
diff --git a/drivers/acpi/acpica/dbdisply.c b/drivers/acpi/acpica/dbdisply.c
new file mode 100644
index 0000000..672977e
--- /dev/null
+++ b/drivers/acpi/acpica/dbdisply.c
@@ -0,0 +1,1108 @@
+/*******************************************************************************
+ *
+ * Module Name: dbdisply - debug display commands
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2015, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "amlcode.h"
+#include "acdispat.h"
+#include "acnamesp.h"
+#include "acparser.h"
+#include "acinterp.h"
+#include "acdebug.h"
+
+#define _COMPONENT          ACPI_CA_DEBUGGER
+ACPI_MODULE_NAME("dbdisply")
+
+/* Local prototypes */
+static void acpi_db_dump_parser_descriptor(union acpi_parse_object *op);
+
+static void *acpi_db_get_pointer(void *target);
+
+static acpi_status
+acpi_db_display_non_root_handlers(acpi_handle obj_handle,
+				  u32 nesting_level,
+				  void *context, void **return_value);
+
+/*
+ * System handler information.
+ * Used for Handlers command, in acpi_db_display_handlers.
+ */
+#define ACPI_PREDEFINED_PREFIX          "%25s (%.2X) : "
+#define ACPI_HANDLER_NAME_STRING               "%30s : "
+#define ACPI_HANDLER_PRESENT_STRING                    "%-9s (%p)\n"
+#define ACPI_HANDLER_PRESENT_STRING2                   "%-9s (%p)"
+#define ACPI_HANDLER_NOT_PRESENT_STRING                "%-9s\n"
+
+/* All predefined Address Space IDs */
+
+static acpi_adr_space_type acpi_gbl_space_id_list[] = {
+	ACPI_ADR_SPACE_SYSTEM_MEMORY,
+	ACPI_ADR_SPACE_SYSTEM_IO,
+	ACPI_ADR_SPACE_PCI_CONFIG,
+	ACPI_ADR_SPACE_EC,
+	ACPI_ADR_SPACE_SMBUS,
+	ACPI_ADR_SPACE_CMOS,
+	ACPI_ADR_SPACE_PCI_BAR_TARGET,
+	ACPI_ADR_SPACE_IPMI,
+	ACPI_ADR_SPACE_GPIO,
+	ACPI_ADR_SPACE_GSBUS,
+	ACPI_ADR_SPACE_DATA_TABLE,
+	ACPI_ADR_SPACE_FIXED_HARDWARE
+};
+
+/* Global handler information */
+
+typedef struct acpi_handler_info {
+	void *handler;
+	char *name;
+
+} acpi_handler_info;
+
+static struct acpi_handler_info acpi_gbl_handler_list[] = {
+	{&acpi_gbl_global_notify[0].handler, "System Notifications"},
+	{&acpi_gbl_global_notify[1].handler, "Device Notifications"},
+	{&acpi_gbl_table_handler, "ACPI Table Events"},
+	{&acpi_gbl_exception_handler, "Control Method Exceptions"},
+	{&acpi_gbl_interface_handler, "OSI Invocations"}
+};
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_get_pointer
+ *
+ * PARAMETERS:  target          - Pointer to string to be converted
+ *
+ * RETURN:      Converted pointer
+ *
+ * DESCRIPTION: Convert an ascii pointer value to a real value
+ *
+ ******************************************************************************/
+
+static void *acpi_db_get_pointer(void *target)
+{
+	void *obj_ptr;
+	acpi_size address;
+
+	address = strtoul(target, NULL, 16);
+	obj_ptr = ACPI_TO_POINTER(address);
+	return (obj_ptr);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_dump_parser_descriptor
+ *
+ * PARAMETERS:  op              - A parser Op descriptor
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Display a formatted parser object
+ *
+ ******************************************************************************/
+
+static void acpi_db_dump_parser_descriptor(union acpi_parse_object *op)
+{
+	const struct acpi_opcode_info *info;
+
+	info = acpi_ps_get_opcode_info(op->common.aml_opcode);
+
+	acpi_os_printf("Parser Op Descriptor:\n");
+	acpi_os_printf("%20.20s : %4.4X\n", "Opcode", op->common.aml_opcode);
+
+	ACPI_DEBUG_ONLY_MEMBERS(acpi_os_printf("%20.20s : %s\n", "Opcode Name",
+					       info->name));
+
+	acpi_os_printf("%20.20s : %p\n", "Value/ArgList", op->common.value.arg);
+	acpi_os_printf("%20.20s : %p\n", "Parent", op->common.parent);
+	acpi_os_printf("%20.20s : %p\n", "NextOp", op->common.next);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_decode_and_display_object
+ *
+ * PARAMETERS:  target          - String with object to be displayed. Names
+ *                                and hex pointers are supported.
+ *              output_type     - Byte, Word, Dword, or Qword (B|W|D|Q)
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Display a formatted ACPI object
+ *
+ ******************************************************************************/
+
+void acpi_db_decode_and_display_object(char *target, char *output_type)
+{
+	void *obj_ptr;
+	struct acpi_namespace_node *node;
+	union acpi_operand_object *obj_desc;
+	u32 display = DB_BYTE_DISPLAY;
+	char buffer[80];
+	struct acpi_buffer ret_buf;
+	acpi_status status;
+	u32 size;
+
+	if (!target) {
+		return;
+	}
+
+	/* Decode the output type */
+
+	if (output_type) {
+		acpi_ut_strupr(output_type);
+		if (output_type[0] == 'W') {
+			display = DB_WORD_DISPLAY;
+		} else if (output_type[0] == 'D') {
+			display = DB_DWORD_DISPLAY;
+		} else if (output_type[0] == 'Q') {
+			display = DB_QWORD_DISPLAY;
+		}
+	}
+
+	ret_buf.length = sizeof(buffer);
+	ret_buf.pointer = buffer;
+
+	/* Differentiate between a number and a name */
+
+	if ((target[0] >= 0x30) && (target[0] <= 0x39)) {
+		obj_ptr = acpi_db_get_pointer(target);
+		if (!acpi_os_readable(obj_ptr, 16)) {
+			acpi_os_printf
+			    ("Address %p is invalid in this address space\n",
+			     obj_ptr);
+			return;
+		}
+
+		/* Decode the object type */
+
+		switch (ACPI_GET_DESCRIPTOR_TYPE(obj_ptr)) {
+		case ACPI_DESC_TYPE_NAMED:
+
+			/* This is a namespace Node */
+
+			if (!acpi_os_readable
+			    (obj_ptr, sizeof(struct acpi_namespace_node))) {
+				acpi_os_printf
+				    ("Cannot read entire Named object at address %p\n",
+				     obj_ptr);
+				return;
+			}
+
+			node = obj_ptr;
+			goto dump_node;
+
+		case ACPI_DESC_TYPE_OPERAND:
+
+			/* This is a ACPI OPERAND OBJECT */
+
+			if (!acpi_os_readable
+			    (obj_ptr, sizeof(union acpi_operand_object))) {
+				acpi_os_printf
+				    ("Cannot read entire ACPI object at address %p\n",
+				     obj_ptr);
+				return;
+			}
+
+			acpi_ut_debug_dump_buffer(obj_ptr,
+						  sizeof(union
+							 acpi_operand_object),
+						  display, ACPI_UINT32_MAX);
+			acpi_ex_dump_object_descriptor(obj_ptr, 1);
+			break;
+
+		case ACPI_DESC_TYPE_PARSER:
+
+			/* This is a Parser Op object */
+
+			if (!acpi_os_readable
+			    (obj_ptr, sizeof(union acpi_parse_object))) {
+				acpi_os_printf
+				    ("Cannot read entire Parser object at address %p\n",
+				     obj_ptr);
+				return;
+			}
+
+			acpi_ut_debug_dump_buffer(obj_ptr,
+						  sizeof(union
+							 acpi_parse_object),
+						  display, ACPI_UINT32_MAX);
+			acpi_db_dump_parser_descriptor((union acpi_parse_object
+							*)obj_ptr);
+			break;
+
+		default:
+
+			/* Is not a recognizeable object */
+
+			acpi_os_printf
+			    ("Not a known ACPI internal object, descriptor type %2.2X\n",
+			     ACPI_GET_DESCRIPTOR_TYPE(obj_ptr));
+
+			size = 16;
+			if (acpi_os_readable(obj_ptr, 64)) {
+				size = 64;
+			}
+
+			/* Just dump some memory */
+
+			acpi_ut_debug_dump_buffer(obj_ptr, size, display,
+						  ACPI_UINT32_MAX);
+			break;
+		}
+
+		return;
+	}
+
+	/* The parameter is a name string that must be resolved to a Named obj */
+
+	node = acpi_db_local_ns_lookup(target);
+	if (!node) {
+		return;
+	}
+
+dump_node:
+	/* Now dump the NS node */
+
+	status = acpi_get_name(node, ACPI_FULL_PATHNAME_NO_TRAILING, &ret_buf);
+	if (ACPI_FAILURE(status)) {
+		acpi_os_printf("Could not convert name to pathname\n");
+	}
+
+	else {
+		acpi_os_printf("Object (%p) Pathname: %s\n",
+			       node, (char *)ret_buf.pointer);
+	}
+
+	if (!acpi_os_readable(node, sizeof(struct acpi_namespace_node))) {
+		acpi_os_printf("Invalid Named object at address %p\n", node);
+		return;
+	}
+
+	acpi_ut_debug_dump_buffer((void *)node,
+				  sizeof(struct acpi_namespace_node), display,
+				  ACPI_UINT32_MAX);
+	acpi_ex_dump_namespace_node(node, 1);
+
+	obj_desc = acpi_ns_get_attached_object(node);
+	if (obj_desc) {
+		acpi_os_printf("\nAttached Object (%p):\n", obj_desc);
+		if (!acpi_os_readable
+		    (obj_desc, sizeof(union acpi_operand_object))) {
+			acpi_os_printf
+			    ("Invalid internal ACPI Object at address %p\n",
+			     obj_desc);
+			return;
+		}
+
+		acpi_ut_debug_dump_buffer((void *)obj_desc,
+					  sizeof(union acpi_operand_object),
+					  display, ACPI_UINT32_MAX);
+		acpi_ex_dump_object_descriptor(obj_desc, 1);
+	}
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_display_method_info
+ *
+ * PARAMETERS:  start_op        - Root of the control method parse tree
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Display information about the current method
+ *
+ ******************************************************************************/
+
+void acpi_db_display_method_info(union acpi_parse_object *start_op)
+{
+	struct acpi_walk_state *walk_state;
+	union acpi_operand_object *obj_desc;
+	struct acpi_namespace_node *node;
+	union acpi_parse_object *root_op;
+	union acpi_parse_object *op;
+	const struct acpi_opcode_info *op_info;
+	u32 num_ops = 0;
+	u32 num_operands = 0;
+	u32 num_operators = 0;
+	u32 num_remaining_ops = 0;
+	u32 num_remaining_operands = 0;
+	u32 num_remaining_operators = 0;
+	u8 count_remaining = FALSE;
+
+	walk_state = acpi_ds_get_current_walk_state(acpi_gbl_current_walk_list);
+	if (!walk_state) {
+		acpi_os_printf("There is no method currently executing\n");
+		return;
+	}
+
+	obj_desc = walk_state->method_desc;
+	node = walk_state->method_node;
+
+	acpi_os_printf("Currently executing control method is [%4.4s]\n",
+		       acpi_ut_get_node_name(node));
+	acpi_os_printf("%X Arguments, SyncLevel = %X\n",
+		       (u32)obj_desc->method.param_count,
+		       (u32)obj_desc->method.sync_level);
+
+	root_op = start_op;
+	while (root_op->common.parent) {
+		root_op = root_op->common.parent;
+	}
+
+	op = root_op;
+
+	while (op) {
+		if (op == start_op) {
+			count_remaining = TRUE;
+		}
+
+		num_ops++;
+		if (count_remaining) {
+			num_remaining_ops++;
+		}
+
+		/* Decode the opcode */
+
+		op_info = acpi_ps_get_opcode_info(op->common.aml_opcode);
+		switch (op_info->class) {
+		case AML_CLASS_ARGUMENT:
+
+			if (count_remaining) {
+				num_remaining_operands++;
+			}
+
+			num_operands++;
+			break;
+
+		case AML_CLASS_UNKNOWN:
+
+			/* Bad opcode or ASCII character */
+
+			continue;
+
+		default:
+
+			if (count_remaining) {
+				num_remaining_operators++;
+			}
+
+			num_operators++;
+			break;
+		}
+
+		op = acpi_ps_get_depth_next(start_op, op);
+	}
+
+	acpi_os_printf
+	    ("Method contains:       %X AML Opcodes - %X Operators, %X Operands\n",
+	     num_ops, num_operators, num_operands);
+
+	acpi_os_printf
+	    ("Remaining to execute:  %X AML Opcodes - %X Operators, %X Operands\n",
+	     num_remaining_ops, num_remaining_operators,
+	     num_remaining_operands);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_display_locals
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Display all locals for the currently running control method
+ *
+ ******************************************************************************/
+
+void acpi_db_display_locals(void)
+{
+	struct acpi_walk_state *walk_state;
+
+	walk_state = acpi_ds_get_current_walk_state(acpi_gbl_current_walk_list);
+	if (!walk_state) {
+		acpi_os_printf("There is no method currently executing\n");
+		return;
+	}
+
+	acpi_db_decode_locals(walk_state);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_display_arguments
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Display all arguments for the currently running control method
+ *
+ ******************************************************************************/
+
+void acpi_db_display_arguments(void)
+{
+	struct acpi_walk_state *walk_state;
+
+	walk_state = acpi_ds_get_current_walk_state(acpi_gbl_current_walk_list);
+	if (!walk_state) {
+		acpi_os_printf("There is no method currently executing\n");
+		return;
+	}
+
+	acpi_db_decode_arguments(walk_state);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_display_results
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Display current contents of a method result stack
+ *
+ ******************************************************************************/
+
+void acpi_db_display_results(void)
+{
+	u32 i;
+	struct acpi_walk_state *walk_state;
+	union acpi_operand_object *obj_desc;
+	u32 result_count = 0;
+	struct acpi_namespace_node *node;
+	union acpi_generic_state *frame;
+	u32 index;		/* Index onto current frame */
+
+	walk_state = acpi_ds_get_current_walk_state(acpi_gbl_current_walk_list);
+	if (!walk_state) {
+		acpi_os_printf("There is no method currently executing\n");
+		return;
+	}
+
+	obj_desc = walk_state->method_desc;
+	node = walk_state->method_node;
+
+	if (walk_state->results) {
+		result_count = walk_state->result_count;
+	}
+
+	acpi_os_printf("Method [%4.4s] has %X stacked result objects\n",
+		       acpi_ut_get_node_name(node), result_count);
+
+	/* From the top element of result stack */
+
+	frame = walk_state->results;
+	index = (result_count - 1) % ACPI_RESULTS_FRAME_OBJ_NUM;
+
+	for (i = 0; i < result_count; i++) {
+		obj_desc = frame->results.obj_desc[index];
+		acpi_os_printf("Result%u: ", i);
+		acpi_db_display_internal_object(obj_desc, walk_state);
+
+		if (index == 0) {
+			frame = frame->results.next;
+			index = ACPI_RESULTS_FRAME_OBJ_NUM;
+		}
+
+		index--;
+	}
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_display_calling_tree
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Display current calling tree of nested control methods
+ *
+ ******************************************************************************/
+
+void acpi_db_display_calling_tree(void)
+{
+	struct acpi_walk_state *walk_state;
+	struct acpi_namespace_node *node;
+
+	walk_state = acpi_ds_get_current_walk_state(acpi_gbl_current_walk_list);
+	if (!walk_state) {
+		acpi_os_printf("There is no method currently executing\n");
+		return;
+	}
+
+	node = walk_state->method_node;
+	acpi_os_printf("Current Control Method Call Tree\n");
+
+	while (walk_state) {
+		node = walk_state->method_node;
+		acpi_os_printf("  [%4.4s]\n", acpi_ut_get_node_name(node));
+
+		walk_state = walk_state->next;
+	}
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_display_object_type
+ *
+ * PARAMETERS:  name            - User entered NS node handle or name
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Display type of an arbitrary NS node
+ *
+ ******************************************************************************/
+
+void acpi_db_display_object_type(char *name)
+{
+	struct acpi_namespace_node *node;
+	struct acpi_device_info *info;
+	acpi_status status;
+	u32 i;
+
+	node = acpi_db_convert_to_node(name);
+	if (!node) {
+		return;
+	}
+
+	status = acpi_get_object_info(ACPI_CAST_PTR(acpi_handle, node), &info);
+	if (ACPI_FAILURE(status)) {
+		acpi_os_printf("Could not get object info, %s\n",
+			       acpi_format_exception(status));
+		return;
+	}
+
+	if (info->valid & ACPI_VALID_ADR) {
+		acpi_os_printf("ADR: %8.8X%8.8X, STA: %8.8X, Flags: %X\n",
+			       ACPI_FORMAT_UINT64(info->address),
+			       info->current_status, info->flags);
+	}
+	if (info->valid & ACPI_VALID_SXDS) {
+		acpi_os_printf("S1D-%2.2X S2D-%2.2X S3D-%2.2X S4D-%2.2X\n",
+			       info->highest_dstates[0],
+			       info->highest_dstates[1],
+			       info->highest_dstates[2],
+			       info->highest_dstates[3]);
+	}
+	if (info->valid & ACPI_VALID_SXWS) {
+		acpi_os_printf
+		    ("S0W-%2.2X S1W-%2.2X S2W-%2.2X S3W-%2.2X S4W-%2.2X\n",
+		     info->lowest_dstates[0], info->lowest_dstates[1],
+		     info->lowest_dstates[2], info->lowest_dstates[3],
+		     info->lowest_dstates[4]);
+	}
+
+	if (info->valid & ACPI_VALID_HID) {
+		acpi_os_printf("HID: %s\n", info->hardware_id.string);
+	}
+
+	if (info->valid & ACPI_VALID_UID) {
+		acpi_os_printf("UID: %s\n", info->unique_id.string);
+	}
+
+	if (info->valid & ACPI_VALID_SUB) {
+		acpi_os_printf("SUB: %s\n", info->subsystem_id.string);
+	}
+
+	if (info->valid & ACPI_VALID_CID) {
+		for (i = 0; i < info->compatible_id_list.count; i++) {
+			acpi_os_printf("CID %u: %s\n", i,
+				       info->compatible_id_list.ids[i].string);
+		}
+	}
+
+	ACPI_FREE(info);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_display_result_object
+ *
+ * PARAMETERS:  obj_desc        - Object to be displayed
+ *              walk_state      - Current walk state
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Display the result of an AML opcode
+ *
+ * Note: Curently only displays the result object if we are single stepping.
+ * However, this output may be useful in other contexts and could be enabled
+ * to do so if needed.
+ *
+ ******************************************************************************/
+
+void
+acpi_db_display_result_object(union acpi_operand_object *obj_desc,
+			      struct acpi_walk_state *walk_state)
+{
+
+	/* Only display if single stepping */
+
+	if (!acpi_gbl_cm_single_step) {
+		return;
+	}
+
+	acpi_os_printf("ResultObj: ");
+	acpi_db_display_internal_object(obj_desc, walk_state);
+	acpi_os_printf("\n");
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_display_argument_object
+ *
+ * PARAMETERS:  obj_desc        - Object to be displayed
+ *              walk_state      - Current walk state
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Display the result of an AML opcode
+ *
+ ******************************************************************************/
+
+void
+acpi_db_display_argument_object(union acpi_operand_object *obj_desc,
+				struct acpi_walk_state *walk_state)
+{
+
+	if (!acpi_gbl_cm_single_step) {
+		return;
+	}
+
+	acpi_os_printf("ArgObj:  ");
+	acpi_db_display_internal_object(obj_desc, walk_state);
+}
+
+#if (!ACPI_REDUCED_HARDWARE)
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_display_gpes
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Display the current GPE structures
+ *
+ ******************************************************************************/
+
+void acpi_db_display_gpes(void)
+{
+	struct acpi_gpe_block_info *gpe_block;
+	struct acpi_gpe_xrupt_info *gpe_xrupt_info;
+	struct acpi_gpe_event_info *gpe_event_info;
+	struct acpi_gpe_register_info *gpe_register_info;
+	char *gpe_type;
+	struct acpi_gpe_notify_info *notify;
+	u32 gpe_index;
+	u32 block = 0;
+	u32 i;
+	u32 j;
+	u32 count;
+	char buffer[80];
+	struct acpi_buffer ret_buf;
+	acpi_status status;
+
+	ret_buf.length = sizeof(buffer);
+	ret_buf.pointer = buffer;
+
+	block = 0;
+
+	/* Walk the GPE lists */
+
+	gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head;
+	while (gpe_xrupt_info) {
+		gpe_block = gpe_xrupt_info->gpe_block_list_head;
+		while (gpe_block) {
+			status = acpi_get_name(gpe_block->node,
+					       ACPI_FULL_PATHNAME_NO_TRAILING,
+					       &ret_buf);
+			if (ACPI_FAILURE(status)) {
+				acpi_os_printf
+				    ("Could not convert name to pathname\n");
+			}
+
+			if (gpe_block->node == acpi_gbl_fadt_gpe_device) {
+				gpe_type = "FADT-defined GPE block";
+			} else {
+				gpe_type = "GPE Block Device";
+			}
+
+			acpi_os_printf
+			    ("\nBlock %u - Info %p  DeviceNode %p [%s] - %s\n",
+			     block, gpe_block, gpe_block->node, buffer,
+			     gpe_type);
+
+			acpi_os_printf("    Registers:    %u (%u GPEs)\n",
+				       gpe_block->register_count,
+				       gpe_block->gpe_count);
+
+			acpi_os_printf
+			    ("    GPE range:    0x%X to 0x%X on interrupt %u\n",
+			     gpe_block->block_base_number,
+			     gpe_block->block_base_number +
+			     (gpe_block->gpe_count - 1),
+			     gpe_xrupt_info->interrupt_number);
+
+			acpi_os_printf
+			    ("    RegisterInfo: %p  Status %8.8X%8.8X Enable %8.8X%8.8X\n",
+			     gpe_block->register_info,
+			     ACPI_FORMAT_UINT64(gpe_block->register_info->
+						status_address.address),
+			     ACPI_FORMAT_UINT64(gpe_block->register_info->
+						enable_address.address));
+
+			acpi_os_printf("  EventInfo:    %p\n",
+				       gpe_block->event_info);
+
+			/* Examine each GPE Register within the block */
+
+			for (i = 0; i < gpe_block->register_count; i++) {
+				gpe_register_info =
+				    &gpe_block->register_info[i];
+
+				acpi_os_printf("    Reg %u: (GPE %.2X-%.2X)  "
+					       "RunEnable %2.2X WakeEnable %2.2X"
+					       " Status %8.8X%8.8X Enable %8.8X%8.8X\n",
+					       i,
+					       gpe_register_info->
+					       base_gpe_number,
+					       gpe_register_info->
+					       base_gpe_number +
+					       (ACPI_GPE_REGISTER_WIDTH - 1),
+					       gpe_register_info->
+					       enable_for_run,
+					       gpe_register_info->
+					       enable_for_wake,
+					       ACPI_FORMAT_UINT64
+					       (gpe_register_info->
+						status_address.address),
+					       ACPI_FORMAT_UINT64
+					       (gpe_register_info->
+						enable_address.address));
+
+				/* Now look at the individual GPEs in this byte register */
+
+				for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) {
+					gpe_index =
+					    (i * ACPI_GPE_REGISTER_WIDTH) + j;
+					gpe_event_info =
+					    &gpe_block->event_info[gpe_index];
+
+					if (ACPI_GPE_DISPATCH_TYPE
+					    (gpe_event_info->flags) ==
+					    ACPI_GPE_DISPATCH_NONE) {
+
+						/* This GPE is not used (no method or handler), ignore it */
+
+						continue;
+					}
+
+					acpi_os_printf
+					    ("        GPE %.2X: %p  RunRefs %2.2X Flags %2.2X (",
+					     gpe_block->block_base_number +
+					     gpe_index, gpe_event_info,
+					     gpe_event_info->runtime_count,
+					     gpe_event_info->flags);
+
+					/* Decode the flags byte */
+
+					if (gpe_event_info->
+					    flags & ACPI_GPE_LEVEL_TRIGGERED) {
+						acpi_os_printf("Level, ");
+					} else {
+						acpi_os_printf("Edge, ");
+					}
+
+					if (gpe_event_info->
+					    flags & ACPI_GPE_CAN_WAKE) {
+						acpi_os_printf("CanWake, ");
+					} else {
+						acpi_os_printf("RunOnly, ");
+					}
+
+					switch (ACPI_GPE_DISPATCH_TYPE
+						(gpe_event_info->flags)) {
+					case ACPI_GPE_DISPATCH_NONE:
+
+						acpi_os_printf("NotUsed");
+						break;
+
+					case ACPI_GPE_DISPATCH_METHOD:
+
+						acpi_os_printf("Method");
+						break;
+
+					case ACPI_GPE_DISPATCH_HANDLER:
+
+						acpi_os_printf("Handler");
+						break;
+
+					case ACPI_GPE_DISPATCH_NOTIFY:
+
+						count = 0;
+						notify =
+						    gpe_event_info->dispatch.
+						    notify_list;
+						while (notify) {
+							count++;
+							notify = notify->next;
+						}
+
+						acpi_os_printf
+						    ("Implicit Notify on %u devices",
+						     count);
+						break;
+
+					case ACPI_GPE_DISPATCH_RAW_HANDLER:
+
+						acpi_os_printf("RawHandler");
+						break;
+
+					default:
+
+						acpi_os_printf("UNKNOWN: %X",
+							       ACPI_GPE_DISPATCH_TYPE
+							       (gpe_event_info->
+								flags));
+						break;
+					}
+
+					acpi_os_printf(")\n");
+				}
+			}
+
+			block++;
+			gpe_block = gpe_block->next;
+		}
+
+		gpe_xrupt_info = gpe_xrupt_info->next;
+	}
+}
+#endif				/* !ACPI_REDUCED_HARDWARE */
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_display_handlers
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Display the currently installed global handlers
+ *
+ ******************************************************************************/
+
+void acpi_db_display_handlers(void)
+{
+	union acpi_operand_object *obj_desc;
+	union acpi_operand_object *handler_obj;
+	acpi_adr_space_type space_id;
+	u32 i;
+
+	/* Operation region handlers */
+
+	acpi_os_printf("\nOperation Region Handlers at the namespace root:\n");
+
+	obj_desc = acpi_ns_get_attached_object(acpi_gbl_root_node);
+	if (obj_desc) {
+		for (i = 0; i < ACPI_ARRAY_LENGTH(acpi_gbl_space_id_list); i++) {
+			space_id = acpi_gbl_space_id_list[i];
+			handler_obj = obj_desc->device.handler;
+
+			acpi_os_printf(ACPI_PREDEFINED_PREFIX,
+				       acpi_ut_get_region_name((u8)space_id),
+				       space_id);
+
+			while (handler_obj) {
+				if (acpi_gbl_space_id_list[i] ==
+				    handler_obj->address_space.space_id) {
+					acpi_os_printf
+					    (ACPI_HANDLER_PRESENT_STRING,
+					     (handler_obj->address_space.
+					      handler_flags &
+					      ACPI_ADDR_HANDLER_DEFAULT_INSTALLED)
+					     ? "Default" : "User",
+					     handler_obj->address_space.
+					     handler);
+
+					goto found_handler;
+				}
+
+				handler_obj = handler_obj->address_space.next;
+			}
+
+			/* There is no handler for this space_id */
+
+			acpi_os_printf("None\n");
+
+found_handler:		;
+		}
+
+		/* Find all handlers for user-defined space_IDs */
+
+		handler_obj = obj_desc->device.handler;
+		while (handler_obj) {
+			if (handler_obj->address_space.space_id >=
+			    ACPI_USER_REGION_BEGIN) {
+				acpi_os_printf(ACPI_PREDEFINED_PREFIX,
+					       "User-defined ID",
+					       handler_obj->address_space.
+					       space_id);
+				acpi_os_printf(ACPI_HANDLER_PRESENT_STRING,
+					       (handler_obj->address_space.
+						handler_flags &
+						ACPI_ADDR_HANDLER_DEFAULT_INSTALLED)
+					       ? "Default" : "User",
+					       handler_obj->address_space.
+					       handler);
+			}
+
+			handler_obj = handler_obj->address_space.next;
+		}
+	}
+#if (!ACPI_REDUCED_HARDWARE)
+
+	/* Fixed event handlers */
+
+	acpi_os_printf("\nFixed Event Handlers:\n");
+
+	for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) {
+		acpi_os_printf(ACPI_PREDEFINED_PREFIX,
+			       acpi_ut_get_event_name(i), i);
+		if (acpi_gbl_fixed_event_handlers[i].handler) {
+			acpi_os_printf(ACPI_HANDLER_PRESENT_STRING, "User",
+				       acpi_gbl_fixed_event_handlers[i].
+				       handler);
+		} else {
+			acpi_os_printf(ACPI_HANDLER_NOT_PRESENT_STRING, "None");
+		}
+	}
+
+#endif				/* !ACPI_REDUCED_HARDWARE */
+
+	/* Miscellaneous global handlers */
+
+	acpi_os_printf("\nMiscellaneous Global Handlers:\n");
+
+	for (i = 0; i < ACPI_ARRAY_LENGTH(acpi_gbl_handler_list); i++) {
+		acpi_os_printf(ACPI_HANDLER_NAME_STRING,
+			       acpi_gbl_handler_list[i].name);
+
+		if (acpi_gbl_handler_list[i].handler) {
+			acpi_os_printf(ACPI_HANDLER_PRESENT_STRING, "User",
+				       acpi_gbl_handler_list[i].handler);
+		} else {
+			acpi_os_printf(ACPI_HANDLER_NOT_PRESENT_STRING, "None");
+		}
+	}
+
+	/* Other handlers that are installed throughout the namespace */
+
+	acpi_os_printf("\nOperation Region Handlers for specific devices:\n");
+
+	(void)acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
+				  ACPI_UINT32_MAX,
+				  acpi_db_display_non_root_handlers, NULL, NULL,
+				  NULL);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_display_non_root_handlers
+ *
+ * PARAMETERS:  acpi_walk_callback
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Display information about all handlers installed for a
+ *              device object.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_db_display_non_root_handlers(acpi_handle obj_handle,
+				  u32 nesting_level,
+				  void *context, void **return_value)
+{
+	struct acpi_namespace_node *node =
+	    ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle);
+	union acpi_operand_object *obj_desc;
+	union acpi_operand_object *handler_obj;
+	char *pathname;
+
+	obj_desc = acpi_ns_get_attached_object(node);
+	if (!obj_desc) {
+		return (AE_OK);
+	}
+
+	pathname = acpi_ns_get_external_pathname(node);
+	if (!pathname) {
+		return (AE_OK);
+	}
+
+	/* Display all handlers associated with this device */
+
+	handler_obj = obj_desc->device.handler;
+	while (handler_obj) {
+		acpi_os_printf(ACPI_PREDEFINED_PREFIX,
+			       acpi_ut_get_region_name((u8)handler_obj->
+						       address_space.space_id),
+			       handler_obj->address_space.space_id);
+
+		acpi_os_printf(ACPI_HANDLER_PRESENT_STRING2,
+			       (handler_obj->address_space.handler_flags &
+				ACPI_ADDR_HANDLER_DEFAULT_INSTALLED) ? "Default"
+			       : "User", handler_obj->address_space.handler);
+
+		acpi_os_printf(" Device Name: %s (%p)\n", pathname, node);
+
+		handler_obj = handler_obj->address_space.next;
+	}
+
+	ACPI_FREE(pathname);
+	return (AE_OK);
+}
diff --git a/drivers/acpi/acpica/dbexec.c b/drivers/acpi/acpica/dbexec.c
new file mode 100644
index 0000000..d713e2d
--- /dev/null
+++ b/drivers/acpi/acpica/dbexec.c
@@ -0,0 +1,764 @@
+/*******************************************************************************
+ *
+ * Module Name: dbexec - debugger control method execution
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2015, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acdebug.h"
+#include "acnamesp.h"
+
+#define _COMPONENT          ACPI_CA_DEBUGGER
+ACPI_MODULE_NAME("dbexec")
+
+static struct acpi_db_method_info acpi_gbl_db_method_info;
+
+/* Local prototypes */
+
+static acpi_status
+acpi_db_execute_method(struct acpi_db_method_info *info,
+		       struct acpi_buffer *return_obj);
+
+static acpi_status acpi_db_execute_setup(struct acpi_db_method_info *info);
+
+static u32 acpi_db_get_outstanding_allocations(void);
+
+static void ACPI_SYSTEM_XFACE acpi_db_method_thread(void *context);
+
+static acpi_status
+acpi_db_execution_walk(acpi_handle obj_handle,
+		       u32 nesting_level, void *context, void **return_value);
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_delete_objects
+ *
+ * PARAMETERS:  count               - Count of objects in the list
+ *              objects             - Array of ACPI_OBJECTs to be deleted
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Delete a list of ACPI_OBJECTS. Handles packages and nested
+ *              packages via recursion.
+ *
+ ******************************************************************************/
+
+void acpi_db_delete_objects(u32 count, union acpi_object *objects)
+{
+	u32 i;
+
+	for (i = 0; i < count; i++) {
+		switch (objects[i].type) {
+		case ACPI_TYPE_BUFFER:
+
+			ACPI_FREE(objects[i].buffer.pointer);
+			break;
+
+		case ACPI_TYPE_PACKAGE:
+
+			/* Recursive call to delete package elements */
+
+			acpi_db_delete_objects(objects[i].package.count,
+					       objects[i].package.elements);
+
+			/* Free the elements array */
+
+			ACPI_FREE(objects[i].package.elements);
+			break;
+
+		default:
+
+			break;
+		}
+	}
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_execute_method
+ *
+ * PARAMETERS:  info            - Valid info segment
+ *              return_obj      - Where to put return object
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Execute a control method.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_db_execute_method(struct acpi_db_method_info *info,
+		       struct acpi_buffer *return_obj)
+{
+	acpi_status status;
+	struct acpi_object_list param_objects;
+	union acpi_object params[ACPI_DEBUGGER_MAX_ARGS + 1];
+	u32 i;
+
+	ACPI_FUNCTION_TRACE(db_execute_method);
+
+	if (acpi_gbl_db_output_to_file && !acpi_dbg_level) {
+		acpi_os_printf("Warning: debug output is not enabled!\n");
+	}
+
+	param_objects.count = 0;
+	param_objects.pointer = NULL;
+
+	/* Pass through any command-line arguments */
+
+	if (info->args && info->args[0]) {
+
+		/* Get arguments passed on the command line */
+
+		for (i = 0; (info->args[i] && *(info->args[i])); i++) {
+
+			/* Convert input string (token) to an actual union acpi_object */
+
+			status = acpi_db_convert_to_object(info->types[i],
+							   info->args[i],
+							   &params[i]);
+			if (ACPI_FAILURE(status)) {
+				ACPI_EXCEPTION((AE_INFO, status,
+						"While parsing method arguments"));
+				goto cleanup;
+			}
+		}
+
+		param_objects.count = i;
+		param_objects.pointer = params;
+	}
+
+	/* Prepare for a return object of arbitrary size */
+
+	return_obj->pointer = acpi_gbl_db_buffer;
+	return_obj->length = ACPI_DEBUG_BUFFER_SIZE;
+
+	/* Do the actual method execution */
+
+	acpi_gbl_method_executing = TRUE;
+	status = acpi_evaluate_object(NULL, info->pathname,
+				      &param_objects, return_obj);
+
+	acpi_gbl_cm_single_step = FALSE;
+	acpi_gbl_method_executing = FALSE;
+
+	if (ACPI_FAILURE(status)) {
+		ACPI_EXCEPTION((AE_INFO, status,
+				"while executing %s from debugger",
+				info->pathname));
+
+		if (status == AE_BUFFER_OVERFLOW) {
+			ACPI_ERROR((AE_INFO,
+				    "Possible overflow of internal debugger "
+				    "buffer (size 0x%X needed 0x%X)",
+				    ACPI_DEBUG_BUFFER_SIZE,
+				    (u32)return_obj->length));
+		}
+	}
+
+cleanup:
+	acpi_db_delete_objects(param_objects.count, params);
+	return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_execute_setup
+ *
+ * PARAMETERS:  info            - Valid method info
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Setup info segment prior to method execution
+ *
+ ******************************************************************************/
+
+static acpi_status acpi_db_execute_setup(struct acpi_db_method_info *info)
+{
+	acpi_status status;
+
+	ACPI_FUNCTION_NAME(db_execute_setup);
+
+	/* Catenate the current scope to the supplied name */
+
+	info->pathname[0] = 0;
+	if ((info->name[0] != '\\') && (info->name[0] != '/')) {
+		if (acpi_ut_safe_strcat(info->pathname, sizeof(info->pathname),
+					acpi_gbl_db_scope_buf)) {
+			status = AE_BUFFER_OVERFLOW;
+			goto error_exit;
+		}
+	}
+
+	if (acpi_ut_safe_strcat(info->pathname, sizeof(info->pathname),
+				info->name)) {
+		status = AE_BUFFER_OVERFLOW;
+		goto error_exit;
+	}
+
+	acpi_db_prep_namestring(info->pathname);
+
+	acpi_db_set_output_destination(ACPI_DB_DUPLICATE_OUTPUT);
+	acpi_os_printf("Evaluating %s\n", info->pathname);
+
+	if (info->flags & EX_SINGLE_STEP) {
+		acpi_gbl_cm_single_step = TRUE;
+		acpi_db_set_output_destination(ACPI_DB_CONSOLE_OUTPUT);
+	}
+
+	else {
+		/* No single step, allow redirection to a file */
+
+		acpi_db_set_output_destination(ACPI_DB_REDIRECTABLE_OUTPUT);
+	}
+
+	return (AE_OK);
+
+error_exit:
+
+	ACPI_EXCEPTION((AE_INFO, status, "During setup for method execution"));
+	return (status);
+}
+
+#ifdef ACPI_DBG_TRACK_ALLOCATIONS
+u32 acpi_db_get_cache_info(struct acpi_memory_list *cache)
+{
+
+	return (cache->total_allocated - cache->total_freed -
+		cache->current_depth);
+}
+#endif
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_get_outstanding_allocations
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      Current global allocation count minus cache entries
+ *
+ * DESCRIPTION: Determine the current number of "outstanding" allocations --
+ *              those allocations that have not been freed and also are not
+ *              in one of the various object caches.
+ *
+ ******************************************************************************/
+
+static u32 acpi_db_get_outstanding_allocations(void)
+{
+	u32 outstanding = 0;
+
+#ifdef ACPI_DBG_TRACK_ALLOCATIONS
+
+	outstanding += acpi_db_get_cache_info(acpi_gbl_state_cache);
+	outstanding += acpi_db_get_cache_info(acpi_gbl_ps_node_cache);
+	outstanding += acpi_db_get_cache_info(acpi_gbl_ps_node_ext_cache);
+	outstanding += acpi_db_get_cache_info(acpi_gbl_operand_cache);
+#endif
+
+	return (outstanding);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_execution_walk
+ *
+ * PARAMETERS:  WALK_CALLBACK
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Execute a control method. Name is relative to the current
+ *              scope.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_db_execution_walk(acpi_handle obj_handle,
+		       u32 nesting_level, void *context, void **return_value)
+{
+	union acpi_operand_object *obj_desc;
+	struct acpi_namespace_node *node =
+	    (struct acpi_namespace_node *)obj_handle;
+	struct acpi_buffer return_obj;
+	acpi_status status;
+
+	obj_desc = acpi_ns_get_attached_object(node);
+	if (obj_desc->method.param_count) {
+		return (AE_OK);
+	}
+
+	return_obj.pointer = NULL;
+	return_obj.length = ACPI_ALLOCATE_BUFFER;
+
+	acpi_ns_print_node_pathname(node, "Evaluating");
+
+	/* Do the actual method execution */
+
+	acpi_os_printf("\n");
+	acpi_gbl_method_executing = TRUE;
+
+	status = acpi_evaluate_object(node, NULL, NULL, &return_obj);
+
+	acpi_os_printf("Evaluation of [%4.4s] returned %s\n",
+		       acpi_ut_get_node_name(node),
+		       acpi_format_exception(status));
+
+	acpi_gbl_method_executing = FALSE;
+	return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_execute
+ *
+ * PARAMETERS:  name                - Name of method to execute
+ *              args                - Parameters to the method
+ *              Types               -
+ *              flags               - single step/no single step
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Execute a control method. Name is relative to the current
+ *              scope.
+ *
+ ******************************************************************************/
+
+void
+acpi_db_execute(char *name, char **args, acpi_object_type * types, u32 flags)
+{
+	acpi_status status;
+	struct acpi_buffer return_obj;
+	char *name_string;
+
+#ifdef ACPI_DEBUG_OUTPUT
+	u32 previous_allocations;
+	u32 allocations;
+#endif
+
+	/*
+	 * Allow one execution to be performed by debugger or single step
+	 * execution will be dead locked by the interpreter mutexes.
+	 */
+	if (acpi_gbl_method_executing) {
+		acpi_os_printf("Only one debugger execution is allowed.\n");
+		return;
+	}
+#ifdef ACPI_DEBUG_OUTPUT
+	/* Memory allocation tracking */
+
+	previous_allocations = acpi_db_get_outstanding_allocations();
+#endif
+
+	if (*name == '*') {
+		(void)acpi_walk_namespace(ACPI_TYPE_METHOD, ACPI_ROOT_OBJECT,
+					  ACPI_UINT32_MAX,
+					  acpi_db_execution_walk, NULL, NULL,
+					  NULL);
+		return;
+	} else {
+		name_string = ACPI_ALLOCATE(strlen(name) + 1);
+		if (!name_string) {
+			return;
+		}
+
+		memset(&acpi_gbl_db_method_info, 0,
+		       sizeof(struct acpi_db_method_info));
+
+		strcpy(name_string, name);
+		acpi_ut_strupr(name_string);
+		acpi_gbl_db_method_info.name = name_string;
+		acpi_gbl_db_method_info.args = args;
+		acpi_gbl_db_method_info.types = types;
+		acpi_gbl_db_method_info.flags = flags;
+
+		return_obj.pointer = NULL;
+		return_obj.length = ACPI_ALLOCATE_BUFFER;
+
+		status = acpi_db_execute_setup(&acpi_gbl_db_method_info);
+		if (ACPI_FAILURE(status)) {
+			ACPI_FREE(name_string);
+			return;
+		}
+
+		/* Get the NS node, determines existence also */
+
+		status = acpi_get_handle(NULL, acpi_gbl_db_method_info.pathname,
+					 &acpi_gbl_db_method_info.method);
+		if (ACPI_SUCCESS(status)) {
+			status =
+			    acpi_db_execute_method(&acpi_gbl_db_method_info,
+						   &return_obj);
+		}
+		ACPI_FREE(name_string);
+	}
+
+	/*
+	 * Allow any handlers in separate threads to complete.
+	 * (Such as Notify handlers invoked from AML executed above).
+	 */
+	acpi_os_sleep((u64)10);
+
+#ifdef ACPI_DEBUG_OUTPUT
+
+	/* Memory allocation tracking */
+
+	allocations =
+	    acpi_db_get_outstanding_allocations() - previous_allocations;
+
+	acpi_db_set_output_destination(ACPI_DB_DUPLICATE_OUTPUT);
+
+	if (allocations > 0) {
+		acpi_os_printf
+		    ("0x%X Outstanding allocations after evaluation of %s\n",
+		     allocations, acpi_gbl_db_method_info.pathname);
+	}
+#endif
+
+	if (ACPI_FAILURE(status)) {
+		acpi_os_printf("Evaluation of %s failed with status %s\n",
+			       acpi_gbl_db_method_info.pathname,
+			       acpi_format_exception(status));
+	} else {
+		/* Display a return object, if any */
+
+		if (return_obj.length) {
+			acpi_os_printf("Evaluation of %s returned object %p, "
+				       "external buffer length %X\n",
+				       acpi_gbl_db_method_info.pathname,
+				       return_obj.pointer,
+				       (u32)return_obj.length);
+
+			acpi_db_dump_external_object(return_obj.pointer, 1);
+
+			/* Dump a _PLD buffer if present */
+
+			if (ACPI_COMPARE_NAME
+			    ((ACPI_CAST_PTR
+			      (struct acpi_namespace_node,
+			       acpi_gbl_db_method_info.method)->name.ascii),
+			     METHOD_NAME__PLD)) {
+				acpi_db_dump_pld_buffer(return_obj.pointer);
+			}
+		} else {
+			acpi_os_printf
+			    ("No object was returned from evaluation of %s\n",
+			     acpi_gbl_db_method_info.pathname);
+		}
+	}
+
+	acpi_db_set_output_destination(ACPI_DB_CONSOLE_OUTPUT);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_method_thread
+ *
+ * PARAMETERS:  context             - Execution info segment
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Debugger execute thread. Waits for a command line, then
+ *              simply dispatches it.
+ *
+ ******************************************************************************/
+
+static void ACPI_SYSTEM_XFACE acpi_db_method_thread(void *context)
+{
+	acpi_status status;
+	struct acpi_db_method_info *info = context;
+	struct acpi_db_method_info local_info;
+	u32 i;
+	u8 allow;
+	struct acpi_buffer return_obj;
+
+	/*
+	 * acpi_gbl_db_method_info.Arguments will be passed as method arguments.
+	 * Prevent acpi_gbl_db_method_info from being modified by multiple threads
+	 * concurrently.
+	 *
+	 * Note: The arguments we are passing are used by the ASL test suite
+	 * (aslts). Do not change them without updating the tests.
+	 */
+	(void)acpi_os_wait_semaphore(info->info_gate, 1, ACPI_WAIT_FOREVER);
+
+	if (info->init_args) {
+		acpi_db_uint32_to_hex_string(info->num_created,
+					     info->index_of_thread_str);
+		acpi_db_uint32_to_hex_string((u32)acpi_os_get_thread_id(),
+					     info->id_of_thread_str);
+	}
+
+	if (info->threads && (info->num_created < info->num_threads)) {
+		info->threads[info->num_created++] = acpi_os_get_thread_id();
+	}
+
+	local_info = *info;
+	local_info.args = local_info.arguments;
+	local_info.arguments[0] = local_info.num_threads_str;
+	local_info.arguments[1] = local_info.id_of_thread_str;
+	local_info.arguments[2] = local_info.index_of_thread_str;
+	local_info.arguments[3] = NULL;
+
+	local_info.types = local_info.arg_types;
+
+	(void)acpi_os_signal_semaphore(info->info_gate, 1);
+
+	for (i = 0; i < info->num_loops; i++) {
+		status = acpi_db_execute_method(&local_info, &return_obj);
+		if (ACPI_FAILURE(status)) {
+			acpi_os_printf
+			    ("%s During evaluation of %s at iteration %X\n",
+			     acpi_format_exception(status), info->pathname, i);
+			if (status == AE_ABORT_METHOD) {
+				break;
+			}
+		}
+#if 0
+		if ((i % 100) == 0) {
+			acpi_os_printf("%u loops, Thread 0x%x\n",
+				       i, acpi_os_get_thread_id());
+		}
+
+		if (return_obj.length) {
+			acpi_os_printf
+			    ("Evaluation of %s returned object %p Buflen %X\n",
+			     info->pathname, return_obj.pointer,
+			     (u32)return_obj.length);
+			acpi_db_dump_external_object(return_obj.pointer, 1);
+		}
+#endif
+	}
+
+	/* Signal our completion */
+
+	allow = 0;
+	(void)acpi_os_wait_semaphore(info->thread_complete_gate,
+				     1, ACPI_WAIT_FOREVER);
+	info->num_completed++;
+
+	if (info->num_completed == info->num_threads) {
+
+		/* Do signal for main thread once only */
+		allow = 1;
+	}
+
+	(void)acpi_os_signal_semaphore(info->thread_complete_gate, 1);
+
+	if (allow) {
+		status = acpi_os_signal_semaphore(info->main_thread_gate, 1);
+		if (ACPI_FAILURE(status)) {
+			acpi_os_printf
+			    ("Could not signal debugger thread sync semaphore, %s\n",
+			     acpi_format_exception(status));
+		}
+	}
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_create_execution_threads
+ *
+ * PARAMETERS:  num_threads_arg         - Number of threads to create
+ *              num_loops_arg           - Loop count for the thread(s)
+ *              method_name_arg         - Control method to execute
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Create threads to execute method(s)
+ *
+ ******************************************************************************/
+
+void
+acpi_db_create_execution_threads(char *num_threads_arg,
+				 char *num_loops_arg, char *method_name_arg)
+{
+	acpi_status status;
+	u32 num_threads;
+	u32 num_loops;
+	u32 i;
+	u32 size;
+	acpi_mutex main_thread_gate;
+	acpi_mutex thread_complete_gate;
+	acpi_mutex info_gate;
+
+	/* Get the arguments */
+
+	num_threads = strtoul(num_threads_arg, NULL, 0);
+	num_loops = strtoul(num_loops_arg, NULL, 0);
+
+	if (!num_threads || !num_loops) {
+		acpi_os_printf("Bad argument: Threads %X, Loops %X\n",
+			       num_threads, num_loops);
+		return;
+	}
+
+	/*
+	 * Create the semaphore for synchronization of
+	 * the created threads with the main thread.
+	 */
+	status = acpi_os_create_semaphore(1, 0, &main_thread_gate);
+	if (ACPI_FAILURE(status)) {
+		acpi_os_printf("Could not create semaphore for "
+			       "synchronization with the main thread, %s\n",
+			       acpi_format_exception(status));
+		return;
+	}
+
+	/*
+	 * Create the semaphore for synchronization
+	 * between the created threads.
+	 */
+	status = acpi_os_create_semaphore(1, 1, &thread_complete_gate);
+	if (ACPI_FAILURE(status)) {
+		acpi_os_printf("Could not create semaphore for "
+			       "synchronization between the created threads, %s\n",
+			       acpi_format_exception(status));
+
+		(void)acpi_os_delete_semaphore(main_thread_gate);
+		return;
+	}
+
+	status = acpi_os_create_semaphore(1, 1, &info_gate);
+	if (ACPI_FAILURE(status)) {
+		acpi_os_printf("Could not create semaphore for "
+			       "synchronization of AcpiGbl_DbMethodInfo, %s\n",
+			       acpi_format_exception(status));
+
+		(void)acpi_os_delete_semaphore(thread_complete_gate);
+		(void)acpi_os_delete_semaphore(main_thread_gate);
+		return;
+	}
+
+	memset(&acpi_gbl_db_method_info, 0, sizeof(struct acpi_db_method_info));
+
+	/* Array to store IDs of threads */
+
+	acpi_gbl_db_method_info.num_threads = num_threads;
+	size = sizeof(acpi_thread_id) * acpi_gbl_db_method_info.num_threads;
+
+	acpi_gbl_db_method_info.threads = acpi_os_allocate(size);
+	if (acpi_gbl_db_method_info.threads == NULL) {
+		acpi_os_printf("No memory for thread IDs array\n");
+		(void)acpi_os_delete_semaphore(main_thread_gate);
+		(void)acpi_os_delete_semaphore(thread_complete_gate);
+		(void)acpi_os_delete_semaphore(info_gate);
+		return;
+	}
+	memset(acpi_gbl_db_method_info.threads, 0, size);
+
+	/* Setup the context to be passed to each thread */
+
+	acpi_gbl_db_method_info.name = method_name_arg;
+	acpi_gbl_db_method_info.flags = 0;
+	acpi_gbl_db_method_info.num_loops = num_loops;
+	acpi_gbl_db_method_info.main_thread_gate = main_thread_gate;
+	acpi_gbl_db_method_info.thread_complete_gate = thread_complete_gate;
+	acpi_gbl_db_method_info.info_gate = info_gate;
+
+	/* Init arguments to be passed to method */
+
+	acpi_gbl_db_method_info.init_args = 1;
+	acpi_gbl_db_method_info.args = acpi_gbl_db_method_info.arguments;
+	acpi_gbl_db_method_info.arguments[0] =
+	    acpi_gbl_db_method_info.num_threads_str;
+	acpi_gbl_db_method_info.arguments[1] =
+	    acpi_gbl_db_method_info.id_of_thread_str;
+	acpi_gbl_db_method_info.arguments[2] =
+	    acpi_gbl_db_method_info.index_of_thread_str;
+	acpi_gbl_db_method_info.arguments[3] = NULL;
+
+	acpi_gbl_db_method_info.types = acpi_gbl_db_method_info.arg_types;
+	acpi_gbl_db_method_info.arg_types[0] = ACPI_TYPE_INTEGER;
+	acpi_gbl_db_method_info.arg_types[1] = ACPI_TYPE_INTEGER;
+	acpi_gbl_db_method_info.arg_types[2] = ACPI_TYPE_INTEGER;
+
+	acpi_db_uint32_to_hex_string(num_threads,
+				     acpi_gbl_db_method_info.num_threads_str);
+
+	status = acpi_db_execute_setup(&acpi_gbl_db_method_info);
+	if (ACPI_FAILURE(status)) {
+		goto cleanup_and_exit;
+	}
+
+	/* Get the NS node, determines existence also */
+
+	status = acpi_get_handle(NULL, acpi_gbl_db_method_info.pathname,
+				 &acpi_gbl_db_method_info.method);
+	if (ACPI_FAILURE(status)) {
+		acpi_os_printf("%s Could not get handle for %s\n",
+			       acpi_format_exception(status),
+			       acpi_gbl_db_method_info.pathname);
+		goto cleanup_and_exit;
+	}
+
+	/* Create the threads */
+
+	acpi_os_printf("Creating %X threads to execute %X times each\n",
+		       num_threads, num_loops);
+
+	for (i = 0; i < (num_threads); i++) {
+		status =
+		    acpi_os_execute(OSL_DEBUGGER_EXEC_THREAD,
+				    acpi_db_method_thread,
+				    &acpi_gbl_db_method_info);
+		if (ACPI_FAILURE(status)) {
+			break;
+		}
+	}
+
+	/* Wait for all threads to complete */
+
+	(void)acpi_os_wait_semaphore(main_thread_gate, 1, ACPI_WAIT_FOREVER);
+
+	acpi_db_set_output_destination(ACPI_DB_DUPLICATE_OUTPUT);
+	acpi_os_printf("All threads (%X) have completed\n", num_threads);
+	acpi_db_set_output_destination(ACPI_DB_CONSOLE_OUTPUT);
+
+cleanup_and_exit:
+
+	/* Cleanup and exit */
+
+	(void)acpi_os_delete_semaphore(main_thread_gate);
+	(void)acpi_os_delete_semaphore(thread_complete_gate);
+	(void)acpi_os_delete_semaphore(info_gate);
+
+	acpi_os_free(acpi_gbl_db_method_info.threads);
+	acpi_gbl_db_method_info.threads = NULL;
+}
diff --git a/drivers/acpi/acpica/dbfileio.c b/drivers/acpi/acpica/dbfileio.c
new file mode 100644
index 0000000..d0e6b20
--- /dev/null
+++ b/drivers/acpi/acpica/dbfileio.c
@@ -0,0 +1,256 @@
+/*******************************************************************************
+ *
+ * Module Name: dbfileio - Debugger file I/O commands. These can't usually
+ *              be used when running the debugger in Ring 0 (Kernel mode)
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2015, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acdebug.h"
+#include "actables.h"
+
+#define _COMPONENT          ACPI_CA_DEBUGGER
+ACPI_MODULE_NAME("dbfileio")
+
+#ifdef ACPI_DEBUGGER
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_close_debug_file
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: If open, close the current debug output file
+ *
+ ******************************************************************************/
+void acpi_db_close_debug_file(void)
+{
+
+#ifdef ACPI_APPLICATION
+
+	if (acpi_gbl_debug_file) {
+		fclose(acpi_gbl_debug_file);
+		acpi_gbl_debug_file = NULL;
+		acpi_gbl_db_output_to_file = FALSE;
+		acpi_os_printf("Debug output file %s closed\n",
+			       acpi_gbl_db_debug_filename);
+	}
+#endif
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_open_debug_file
+ *
+ * PARAMETERS:  name                - Filename to open
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Open a file where debug output will be directed.
+ *
+ ******************************************************************************/
+
+void acpi_db_open_debug_file(char *name)
+{
+
+#ifdef ACPI_APPLICATION
+
+	acpi_db_close_debug_file();
+	acpi_gbl_debug_file = fopen(name, "w+");
+	if (!acpi_gbl_debug_file) {
+		acpi_os_printf("Could not open debug file %s\n", name);
+		return;
+	}
+
+	acpi_os_printf("Debug output file %s opened\n", name);
+	strncpy(acpi_gbl_db_debug_filename, name,
+		sizeof(acpi_gbl_db_debug_filename));
+	acpi_gbl_db_output_to_file = TRUE;
+
+#endif
+}
+#endif
+
+#ifdef ACPI_APPLICATION
+#include "acapps.h"
+
+/*******************************************************************************
+ *
+ * FUNCTION:    ae_local_load_table
+ *
+ * PARAMETERS:  table           - pointer to a buffer containing the entire
+ *                                table to be loaded
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: This function is called to load a table from the caller's
+ *              buffer. The buffer must contain an entire ACPI Table including
+ *              a valid header. The header fields will be verified, and if it
+ *              is determined that the table is invalid, the call will fail.
+ *
+ ******************************************************************************/
+
+static acpi_status ae_local_load_table(struct acpi_table_header *table)
+{
+	acpi_status status = AE_OK;
+
+	ACPI_FUNCTION_TRACE(ae_local_load_table);
+
+#if 0
+/*    struct acpi_table_desc          table_info; */
+
+	if (!table) {
+		return_ACPI_STATUS(AE_BAD_PARAMETER);
+	}
+
+	table_info.pointer = table;
+	status = acpi_tb_recognize_table(&table_info, ACPI_TABLE_ALL);
+	if (ACPI_FAILURE(status)) {
+		return_ACPI_STATUS(status);
+	}
+
+	/* Install the new table into the local data structures */
+
+	status = acpi_tb_init_table_descriptor(&table_info);
+	if (ACPI_FAILURE(status)) {
+		if (status == AE_ALREADY_EXISTS) {
+
+			/* Table already exists, no error */
+
+			status = AE_OK;
+		}
+
+		/* Free table allocated by acpi_tb_get_table */
+
+		acpi_tb_delete_single_table(&table_info);
+		return_ACPI_STATUS(status);
+	}
+#if (!defined (ACPI_NO_METHOD_EXECUTION) && !defined (ACPI_CONSTANT_EVAL_ONLY))
+
+	status =
+	    acpi_ns_load_table(table_info.installed_desc, acpi_gbl_root_node);
+	if (ACPI_FAILURE(status)) {
+
+		/* Uninstall table and free the buffer */
+
+		acpi_tb_delete_tables_by_type(ACPI_TABLE_ID_DSDT);
+		return_ACPI_STATUS(status);
+	}
+#endif
+#endif
+
+	return_ACPI_STATUS(status);
+}
+#endif
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_get_table_from_file
+ *
+ * PARAMETERS:  filename        - File where table is located
+ *              return_table    - Where a pointer to the table is returned
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Load an ACPI table from a file
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_db_get_table_from_file(char *filename,
+			    struct acpi_table_header **return_table,
+			    u8 must_be_aml_file)
+{
+#ifdef ACPI_APPLICATION
+	acpi_status status;
+	struct acpi_table_header *table;
+	u8 is_aml_table = TRUE;
+
+	status = acpi_ut_read_table_from_file(filename, &table);
+	if (ACPI_FAILURE(status)) {
+		return (status);
+	}
+
+	if (must_be_aml_file) {
+		is_aml_table = acpi_ut_is_aml_table(table);
+		if (!is_aml_table) {
+			ACPI_EXCEPTION((AE_INFO, AE_OK,
+					"Input for -e is not an AML table: "
+					"\"%4.4s\" (must be DSDT/SSDT)",
+					table->signature));
+			return (AE_TYPE);
+		}
+	}
+
+	if (is_aml_table) {
+
+		/* Attempt to recognize and install the table */
+
+		status = ae_local_load_table(table);
+		if (ACPI_FAILURE(status)) {
+			if (status == AE_ALREADY_EXISTS) {
+				acpi_os_printf
+				    ("Table %4.4s is already installed\n",
+				     table->signature);
+			} else {
+				acpi_os_printf("Could not install table, %s\n",
+					       acpi_format_exception(status));
+			}
+
+			return (status);
+		}
+
+		acpi_tb_print_table_header(0, table);
+
+		fprintf(stderr,
+			"Acpi table [%4.4s] successfully installed and loaded\n",
+			table->signature);
+	}
+
+	acpi_gbl_acpi_hardware_present = FALSE;
+	if (return_table) {
+		*return_table = table;
+	}
+
+#endif				/* ACPI_APPLICATION */
+	return (AE_OK);
+}
diff --git a/drivers/acpi/acpica/dbhistry.c b/drivers/acpi/acpica/dbhistry.c
new file mode 100644
index 0000000..9c66a9e
--- /dev/null
+++ b/drivers/acpi/acpica/dbhistry.c
@@ -0,0 +1,239 @@
+/******************************************************************************
+ *
+ * Module Name: dbhistry - debugger HISTORY command
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2015, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acdebug.h"
+
+#define _COMPONENT          ACPI_CA_DEBUGGER
+ACPI_MODULE_NAME("dbhistry")
+
+#define HI_NO_HISTORY       0
+#define HI_RECORD_HISTORY   1
+#define HISTORY_SIZE        40
+typedef struct history_info {
+	char *command;
+	u32 cmd_num;
+
+} HISTORY_INFO;
+
+static HISTORY_INFO acpi_gbl_history_buffer[HISTORY_SIZE];
+static u16 acpi_gbl_lo_history = 0;
+static u16 acpi_gbl_num_history = 0;
+static u16 acpi_gbl_next_history_index = 0;
+u32 acpi_gbl_next_cmd_num = 1;
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_add_to_history
+ *
+ * PARAMETERS:  command_line    - Command to add
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Add a command line to the history buffer.
+ *
+ ******************************************************************************/
+
+void acpi_db_add_to_history(char *command_line)
+{
+	u16 cmd_len;
+	u16 buffer_len;
+
+	/* Put command into the next available slot */
+
+	cmd_len = (u16)strlen(command_line);
+	if (!cmd_len) {
+		return;
+	}
+
+	if (acpi_gbl_history_buffer[acpi_gbl_next_history_index].command !=
+	    NULL) {
+		buffer_len =
+		    (u16)
+		    strlen(acpi_gbl_history_buffer[acpi_gbl_next_history_index].
+			   command);
+
+		if (cmd_len > buffer_len) {
+			acpi_os_free(acpi_gbl_history_buffer
+				     [acpi_gbl_next_history_index].command);
+			acpi_gbl_history_buffer[acpi_gbl_next_history_index].
+			    command = acpi_os_allocate(cmd_len + 1);
+		}
+	} else {
+		acpi_gbl_history_buffer[acpi_gbl_next_history_index].command =
+		    acpi_os_allocate(cmd_len + 1);
+	}
+
+	strcpy(acpi_gbl_history_buffer[acpi_gbl_next_history_index].command,
+	       command_line);
+
+	acpi_gbl_history_buffer[acpi_gbl_next_history_index].cmd_num =
+	    acpi_gbl_next_cmd_num;
+
+	/* Adjust indexes */
+
+	if ((acpi_gbl_num_history == HISTORY_SIZE) &&
+	    (acpi_gbl_next_history_index == acpi_gbl_lo_history)) {
+		acpi_gbl_lo_history++;
+		if (acpi_gbl_lo_history >= HISTORY_SIZE) {
+			acpi_gbl_lo_history = 0;
+		}
+	}
+
+	acpi_gbl_next_history_index++;
+	if (acpi_gbl_next_history_index >= HISTORY_SIZE) {
+		acpi_gbl_next_history_index = 0;
+	}
+
+	acpi_gbl_next_cmd_num++;
+	if (acpi_gbl_num_history < HISTORY_SIZE) {
+		acpi_gbl_num_history++;
+	}
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_display_history
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Display the contents of the history buffer
+ *
+ ******************************************************************************/
+
+void acpi_db_display_history(void)
+{
+	u32 i;
+	u16 history_index;
+
+	history_index = acpi_gbl_lo_history;
+
+	/* Dump entire history buffer */
+
+	for (i = 0; i < acpi_gbl_num_history; i++) {
+		if (acpi_gbl_history_buffer[history_index].command) {
+			acpi_os_printf("%3ld %s\n",
+				       acpi_gbl_history_buffer[history_index].
+				       cmd_num,
+				       acpi_gbl_history_buffer[history_index].
+				       command);
+		}
+
+		history_index++;
+		if (history_index >= HISTORY_SIZE) {
+			history_index = 0;
+		}
+	}
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_get_from_history
+ *
+ * PARAMETERS:  command_num_arg         - String containing the number of the
+ *                                        command to be retrieved
+ *
+ * RETURN:      Pointer to the retrieved command. Null on error.
+ *
+ * DESCRIPTION: Get a command from the history buffer
+ *
+ ******************************************************************************/
+
+char *acpi_db_get_from_history(char *command_num_arg)
+{
+	u32 cmd_num;
+
+	if (command_num_arg == NULL) {
+		cmd_num = acpi_gbl_next_cmd_num - 1;
+	}
+
+	else {
+		cmd_num = strtoul(command_num_arg, NULL, 0);
+	}
+
+	return (acpi_db_get_history_by_index(cmd_num));
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_get_history_by_index
+ *
+ * PARAMETERS:  cmd_num             - Index of the desired history entry.
+ *                                    Values are 0...(acpi_gbl_next_cmd_num - 1)
+ *
+ * RETURN:      Pointer to the retrieved command. Null on error.
+ *
+ * DESCRIPTION: Get a command from the history buffer
+ *
+ ******************************************************************************/
+
+char *acpi_db_get_history_by_index(u32 cmd_num)
+{
+	u32 i;
+	u16 history_index;
+
+	/* Search history buffer */
+
+	history_index = acpi_gbl_lo_history;
+	for (i = 0; i < acpi_gbl_num_history; i++) {
+		if (acpi_gbl_history_buffer[history_index].cmd_num == cmd_num) {
+
+			/* Found the command, return it */
+
+			return (acpi_gbl_history_buffer[history_index].command);
+		}
+
+		/* History buffer is circular */
+
+		history_index++;
+		if (history_index >= HISTORY_SIZE) {
+			history_index = 0;
+		}
+	}
+
+	acpi_os_printf("Invalid history number: %u\n", history_index);
+	return (NULL);
+}
diff --git a/drivers/acpi/acpica/dbinput.c b/drivers/acpi/acpica/dbinput.c
new file mode 100644
index 0000000..0480254
--- /dev/null
+++ b/drivers/acpi/acpica/dbinput.c
@@ -0,0 +1,1267 @@
+/*******************************************************************************
+ *
+ * Module Name: dbinput - user front-end to the AML debugger
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2015, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acdebug.h"
+
+#define _COMPONENT          ACPI_CA_DEBUGGER
+ACPI_MODULE_NAME("dbinput")
+
+/* Local prototypes */
+static u32 acpi_db_get_line(char *input_buffer);
+
+static u32 acpi_db_match_command(char *user_command);
+
+static void acpi_db_single_thread(void);
+
+static void acpi_db_display_command_info(char *command, u8 display_all);
+
+static void acpi_db_display_help(char *command);
+
+static u8
+acpi_db_match_command_help(char *command,
+			   const struct acpi_db_command_help *help);
+
+/*
+ * Top-level debugger commands.
+ *
+ * This list of commands must match the string table below it
+ */
+enum acpi_ex_debugger_commands {
+	CMD_NOT_FOUND = 0,
+	CMD_NULL,
+	CMD_ALLOCATIONS,
+	CMD_ARGS,
+	CMD_ARGUMENTS,
+	CMD_BREAKPOINT,
+	CMD_BUSINFO,
+	CMD_CALL,
+	CMD_DEBUG,
+	CMD_DISASSEMBLE,
+	CMD_DISASM,
+	CMD_DUMP,
+	CMD_EVALUATE,
+	CMD_EXECUTE,
+	CMD_EXIT,
+	CMD_FIND,
+	CMD_GO,
+	CMD_HANDLERS,
+	CMD_HELP,
+	CMD_HELP2,
+	CMD_HISTORY,
+	CMD_HISTORY_EXE,
+	CMD_HISTORY_LAST,
+	CMD_INFORMATION,
+	CMD_INTEGRITY,
+	CMD_INTO,
+	CMD_LEVEL,
+	CMD_LIST,
+	CMD_LOCALS,
+	CMD_LOCKS,
+	CMD_METHODS,
+	CMD_NAMESPACE,
+	CMD_NOTIFY,
+	CMD_OBJECTS,
+	CMD_OSI,
+	CMD_OWNER,
+	CMD_PATHS,
+	CMD_PREDEFINED,
+	CMD_PREFIX,
+	CMD_QUIT,
+	CMD_REFERENCES,
+	CMD_RESOURCES,
+	CMD_RESULTS,
+	CMD_SET,
+	CMD_STATS,
+	CMD_STOP,
+	CMD_TABLES,
+	CMD_TEMPLATE,
+	CMD_TRACE,
+	CMD_TREE,
+	CMD_TYPE,
+#ifdef ACPI_APPLICATION
+	CMD_ENABLEACPI,
+	CMD_EVENT,
+	CMD_GPE,
+	CMD_GPES,
+	CMD_SCI,
+	CMD_SLEEP,
+
+	CMD_CLOSE,
+	CMD_LOAD,
+	CMD_OPEN,
+	CMD_UNLOAD,
+
+	CMD_TERMINATE,
+	CMD_THREADS,
+
+	CMD_TEST,
+#endif
+};
+
+#define CMD_FIRST_VALID     2
+
+/* Second parameter is the required argument count */
+
+static const struct acpi_db_command_info acpi_gbl_db_commands[] = {
+	{"<NOT FOUND>", 0},
+	{"<NULL>", 0},
+	{"ALLOCATIONS", 0},
+	{"ARGS", 0},
+	{"ARGUMENTS", 0},
+	{"BREAKPOINT", 1},
+	{"BUSINFO", 0},
+	{"CALL", 0},
+	{"DEBUG", 1},
+	{"DISASSEMBLE", 1},
+	{"DISASM", 1},
+	{"DUMP", 1},
+	{"EVALUATE", 1},
+	{"EXECUTE", 1},
+	{"EXIT", 0},
+	{"FIND", 1},
+	{"GO", 0},
+	{"HANDLERS", 0},
+	{"HELP", 0},
+	{"?", 0},
+	{"HISTORY", 0},
+	{"!", 1},
+	{"!!", 0},
+	{"INFORMATION", 0},
+	{"INTEGRITY", 0},
+	{"INTO", 0},
+	{"LEVEL", 0},
+	{"LIST", 0},
+	{"LOCALS", 0},
+	{"LOCKS", 0},
+	{"METHODS", 0},
+	{"NAMESPACE", 0},
+	{"NOTIFY", 2},
+	{"OBJECTS", 0},
+	{"OSI", 0},
+	{"OWNER", 1},
+	{"PATHS", 0},
+	{"PREDEFINED", 0},
+	{"PREFIX", 0},
+	{"QUIT", 0},
+	{"REFERENCES", 1},
+	{"RESOURCES", 0},
+	{"RESULTS", 0},
+	{"SET", 3},
+	{"STATS", 1},
+	{"STOP", 0},
+	{"TABLES", 0},
+	{"TEMPLATE", 1},
+	{"TRACE", 1},
+	{"TREE", 0},
+	{"TYPE", 1},
+#ifdef ACPI_APPLICATION
+	{"ENABLEACPI", 0},
+	{"EVENT", 1},
+	{"GPE", 1},
+	{"GPES", 0},
+	{"SCI", 0},
+	{"SLEEP", 0},
+
+	{"CLOSE", 0},
+	{"LOAD", 1},
+	{"OPEN", 1},
+	{"UNLOAD", 1},
+
+	{"TERMINATE", 0},
+	{"THREADS", 3},
+
+	{"TEST", 1},
+#endif
+	{NULL, 0}
+};
+
+/*
+ * Help for all debugger commands. First argument is the number of lines
+ * of help to output for the command.
+ */
+static const struct acpi_db_command_help acpi_gbl_db_command_help[] = {
+	{0, "\nGeneral-Purpose Commands:", "\n"},
+	{1, "  Allocations", "Display list of current memory allocations\n"},
+	{2, "  Dump <Address>|<Namepath>", "\n"},
+	{0, "       [Byte|Word|Dword|Qword]",
+	 "Display ACPI objects or memory\n"},
+	{1, "  Handlers", "Info about global handlers\n"},
+	{1, "  Help [Command]", "This help screen or individual command\n"},
+	{1, "  History", "Display command history buffer\n"},
+	{1, "  Level <DebugLevel>] [console]",
+	 "Get/Set debug level for file or console\n"},
+	{1, "  Locks", "Current status of internal mutexes\n"},
+	{1, "  Osi [Install|Remove <name>]",
+	 "Display or modify global _OSI list\n"},
+	{1, "  Quit or Exit", "Exit this command\n"},
+	{8, "  Stats <SubCommand>",
+	 "Display namespace and memory statistics\n"},
+	{1, "     Allocations", "Display list of current memory allocations\n"},
+	{1, "     Memory", "Dump internal memory lists\n"},
+	{1, "     Misc", "Namespace search and mutex stats\n"},
+	{1, "     Objects", "Summary of namespace objects\n"},
+	{1, "     Sizes", "Sizes for each of the internal objects\n"},
+	{1, "     Stack", "Display CPU stack usage\n"},
+	{1, "     Tables", "Info about current ACPI table(s)\n"},
+	{1, "  Tables", "Display info about loaded ACPI tables\n"},
+	{1, "  ! <CommandNumber>", "Execute command from history buffer\n"},
+	{1, "  !!", "Execute last command again\n"},
+
+	{0, "\nNamespace Access Commands:", "\n"},
+	{1, "  Businfo", "Display system bus info\n"},
+	{1, "  Disassemble <Method>", "Disassemble a control method\n"},
+	{1, "  Find <AcpiName> (? is wildcard)",
+	 "Find ACPI name(s) with wildcards\n"},
+	{1, "  Integrity", "Validate namespace integrity\n"},
+	{1, "  Methods", "Display list of loaded control methods\n"},
+	{1, "  Namespace [Object] [Depth]",
+	 "Display loaded namespace tree/subtree\n"},
+	{1, "  Notify <Object> <Value>", "Send a notification on Object\n"},
+	{1, "  Objects [ObjectType]",
+	 "Display summary of all objects or just given type\n"},
+	{1, "  Owner <OwnerId> [Depth]",
+	 "Display loaded namespace by object owner\n"},
+	{1, "  Paths", "Display full pathnames of namespace objects\n"},
+	{1, "  Predefined", "Check all predefined names\n"},
+	{1, "  Prefix [<Namepath>]", "Set or Get current execution prefix\n"},
+	{1, "  References <Addr>", "Find all references to object at addr\n"},
+	{1, "  Resources [DeviceName]",
+	 "Display Device resources (no arg = all devices)\n"},
+	{1, "  Set N <NamedObject> <Value>", "Set value for named integer\n"},
+	{1, "  Template <Object>", "Format/dump a Buffer/ResourceTemplate\n"},
+	{1, "  Type <Object>", "Display object type\n"},
+
+	{0, "\nControl Method Execution Commands:", "\n"},
+	{1, "  Arguments (or Args)", "Display method arguments\n"},
+	{1, "  Breakpoint <AmlOffset>", "Set an AML execution breakpoint\n"},
+	{1, "  Call", "Run to next control method invocation\n"},
+	{1, "  Debug <Namepath> [Arguments]", "Single Step a control method\n"},
+	{6, "  Evaluate", "Synonym for Execute\n"},
+	{5, "  Execute <Namepath> [Arguments]", "Execute control method\n"},
+	{1, "     Hex Integer", "Integer method argument\n"},
+	{1, "     \"Ascii String\"", "String method argument\n"},
+	{1, "     (Hex Byte List)", "Buffer method argument\n"},
+	{1, "     [Package Element List]", "Package method argument\n"},
+	{1, "  Go", "Allow method to run to completion\n"},
+	{1, "  Information", "Display info about the current method\n"},
+	{1, "  Into", "Step into (not over) a method call\n"},
+	{1, "  List [# of Aml Opcodes]", "Display method ASL statements\n"},
+	{1, "  Locals", "Display method local variables\n"},
+	{1, "  Results", "Display method result stack\n"},
+	{1, "  Set <A|L> <#> <Value>", "Set method data (Arguments/Locals)\n"},
+	{1, "  Stop", "Terminate control method\n"},
+	{5, "  Trace <State> [<Namepath>] [Once]",
+	 "Trace control method execution\n"},
+	{1, "     Enable", "Enable all messages\n"},
+	{1, "     Disable", "Disable tracing\n"},
+	{1, "     Method", "Enable method execution messages\n"},
+	{1, "     Opcode", "Enable opcode execution messages\n"},
+	{1, "  Tree", "Display control method calling tree\n"},
+	{1, "  <Enter>", "Single step next AML opcode (over calls)\n"},
+
+#ifdef ACPI_APPLICATION
+	{0, "\nHardware Simulation Commands:", "\n"},
+	{1, "  EnableAcpi", "Enable ACPI (hardware) mode\n"},
+	{1, "  Event <F|G> <Value>", "Generate AcpiEvent (Fixed/GPE)\n"},
+	{1, "  Gpe <GpeNum> [GpeBlockDevice]", "Simulate a GPE\n"},
+	{1, "  Gpes", "Display info on all GPE devices\n"},
+	{1, "  Sci", "Generate an SCI\n"},
+	{1, "  Sleep [SleepState]", "Simulate sleep/wake sequence(s) (0-5)\n"},
+
+	{0, "\nFile I/O Commands:", "\n"},
+	{1, "  Close", "Close debug output file\n"},
+	{1, "  Load <Input Filename>", "Load ACPI table from a file\n"},
+	{1, "  Open <Output Filename>", "Open a file for debug output\n"},
+	{1, "  Unload <Namepath>",
+	 "Unload an ACPI table via namespace object\n"},
+
+	{0, "\nUser Space Commands:", "\n"},
+	{1, "  Terminate", "Delete namespace and all internal objects\n"},
+	{1, "  Thread <Threads><Loops><NamePath>",
+	 "Spawn threads to execute method(s)\n"},
+
+	{0, "\nDebug Test Commands:", "\n"},
+	{3, "  Test <TestName>", "Invoke a debug test\n"},
+	{1, "     Objects", "Read/write/compare all namespace data objects\n"},
+	{1, "     Predefined",
+	 "Execute all ACPI predefined names (_STA, etc.)\n"},
+#endif
+	{0, NULL, NULL}
+};
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_match_command_help
+ *
+ * PARAMETERS:  command             - Command string to match
+ *              help                - Help table entry to attempt match
+ *
+ * RETURN:      TRUE if command matched, FALSE otherwise
+ *
+ * DESCRIPTION: Attempt to match a command in the help table in order to
+ *              print help information for a single command.
+ *
+ ******************************************************************************/
+
+static u8
+acpi_db_match_command_help(char *command,
+			   const struct acpi_db_command_help *help)
+{
+	char *invocation = help->invocation;
+	u32 line_count;
+
+	/* Valid commands in the help table begin with a couple of spaces */
+
+	if (*invocation != ' ') {
+		return (FALSE);
+	}
+
+	while (*invocation == ' ') {
+		invocation++;
+	}
+
+	/* Match command name (full command or substring) */
+
+	while ((*command) && (*invocation) && (*invocation != ' ')) {
+		if (tolower((int)*command) != tolower((int)*invocation)) {
+			return (FALSE);
+		}
+
+		invocation++;
+		command++;
+	}
+
+	/* Print the appropriate number of help lines */
+
+	line_count = help->line_count;
+	while (line_count) {
+		acpi_os_printf("%-38s : %s", help->invocation,
+			       help->description);
+		help++;
+		line_count--;
+	}
+
+	return (TRUE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_display_command_info
+ *
+ * PARAMETERS:  command             - Command string to match
+ *              display_all         - Display all matching commands, or just
+ *                                    the first one (substring match)
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Display help information for a Debugger command.
+ *
+ ******************************************************************************/
+
+static void acpi_db_display_command_info(char *command, u8 display_all)
+{
+	const struct acpi_db_command_help *next;
+	u8 matched;
+
+	next = acpi_gbl_db_command_help;
+	while (next->invocation) {
+		matched = acpi_db_match_command_help(command, next);
+		if (!display_all && matched) {
+			return;
+		}
+
+		next++;
+	}
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_display_help
+ *
+ * PARAMETERS:  command             - Optional command string to display help.
+ *                                    if not specified, all debugger command
+ *                                    help strings are displayed
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Display help for a single debugger command, or all of them.
+ *
+ ******************************************************************************/
+
+static void acpi_db_display_help(char *command)
+{
+	const struct acpi_db_command_help *next = acpi_gbl_db_command_help;
+
+	if (!command) {
+
+		/* No argument to help, display help for all commands */
+
+		while (next->invocation) {
+			acpi_os_printf("%-38s%s", next->invocation,
+				       next->description);
+			next++;
+		}
+	} else {
+		/* Display help for all commands that match the subtring */
+
+		acpi_db_display_command_info(command, TRUE);
+	}
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_get_next_token
+ *
+ * PARAMETERS:  string          - Command buffer
+ *              next            - Return value, end of next token
+ *
+ * RETURN:      Pointer to the start of the next token.
+ *
+ * DESCRIPTION: Command line parsing. Get the next token on the command line
+ *
+ ******************************************************************************/
+
+char *acpi_db_get_next_token(char *string,
+			     char **next, acpi_object_type * return_type)
+{
+	char *start;
+	u32 depth;
+	acpi_object_type type = ACPI_TYPE_INTEGER;
+
+	/* At end of buffer? */
+
+	if (!string || !(*string)) {
+		return (NULL);
+	}
+
+	/* Remove any spaces at the beginning */
+
+	if (*string == ' ') {
+		while (*string && (*string == ' ')) {
+			string++;
+		}
+
+		if (!(*string)) {
+			return (NULL);
+		}
+	}
+
+	switch (*string) {
+	case '"':
+
+		/* This is a quoted string, scan until closing quote */
+
+		string++;
+		start = string;
+		type = ACPI_TYPE_STRING;
+
+		/* Find end of string */
+
+		while (*string && (*string != '"')) {
+			string++;
+		}
+		break;
+
+	case '(':
+
+		/* This is the start of a buffer, scan until closing paren */
+
+		string++;
+		start = string;
+		type = ACPI_TYPE_BUFFER;
+
+		/* Find end of buffer */
+
+		while (*string && (*string != ')')) {
+			string++;
+		}
+		break;
+
+	case '[':
+
+		/* This is the start of a package, scan until closing bracket */
+
+		string++;
+		depth = 1;
+		start = string;
+		type = ACPI_TYPE_PACKAGE;
+
+		/* Find end of package (closing bracket) */
+
+		while (*string) {
+
+			/* Handle String package elements */
+
+			if (*string == '"') {
+				/* Find end of string */
+
+				string++;
+				while (*string && (*string != '"')) {
+					string++;
+				}
+				if (!(*string)) {
+					break;
+				}
+			} else if (*string == '[') {
+				depth++;	/* A nested package declaration */
+			} else if (*string == ']') {
+				depth--;
+				if (depth == 0) {	/* Found final package closing bracket */
+					break;
+				}
+			}
+
+			string++;
+		}
+		break;
+
+	default:
+
+		start = string;
+
+		/* Find end of token */
+
+		while (*string && (*string != ' ')) {
+			string++;
+		}
+		break;
+	}
+
+	if (!(*string)) {
+		*next = NULL;
+	} else {
+		*string = 0;
+		*next = string + 1;
+	}
+
+	*return_type = type;
+	return (start);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_get_line
+ *
+ * PARAMETERS:  input_buffer        - Command line buffer
+ *
+ * RETURN:      Count of arguments to the command
+ *
+ * DESCRIPTION: Get the next command line from the user. Gets entire line
+ *              up to the next newline
+ *
+ ******************************************************************************/
+
+static u32 acpi_db_get_line(char *input_buffer)
+{
+	u32 i;
+	u32 count;
+	char *next;
+	char *this;
+
+	if (acpi_ut_safe_strcpy
+	    (acpi_gbl_db_parsed_buf, sizeof(acpi_gbl_db_parsed_buf),
+	     input_buffer)) {
+		acpi_os_printf
+		    ("Buffer overflow while parsing input line (max %u characters)\n",
+		     sizeof(acpi_gbl_db_parsed_buf));
+		return (0);
+	}
+
+	this = acpi_gbl_db_parsed_buf;
+	for (i = 0; i < ACPI_DEBUGGER_MAX_ARGS; i++) {
+		acpi_gbl_db_args[i] = acpi_db_get_next_token(this, &next,
+							     &acpi_gbl_db_arg_types
+							     [i]);
+		if (!acpi_gbl_db_args[i]) {
+			break;
+		}
+
+		this = next;
+	}
+
+	/* Uppercase the actual command */
+
+	if (acpi_gbl_db_args[0]) {
+		acpi_ut_strupr(acpi_gbl_db_args[0]);
+	}
+
+	count = i;
+	if (count) {
+		count--;	/* Number of args only */
+	}
+
+	return (count);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_match_command
+ *
+ * PARAMETERS:  user_command            - User command line
+ *
+ * RETURN:      Index into command array, -1 if not found
+ *
+ * DESCRIPTION: Search command array for a command match
+ *
+ ******************************************************************************/
+
+static u32 acpi_db_match_command(char *user_command)
+{
+	u32 i;
+
+	if (!user_command || user_command[0] == 0) {
+		return (CMD_NULL);
+	}
+
+	for (i = CMD_FIRST_VALID; acpi_gbl_db_commands[i].name; i++) {
+		if (strstr(acpi_gbl_db_commands[i].name, user_command) ==
+		    acpi_gbl_db_commands[i].name) {
+			return (i);
+		}
+	}
+
+	/* Command not recognized */
+
+	return (CMD_NOT_FOUND);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_command_dispatch
+ *
+ * PARAMETERS:  input_buffer        - Command line buffer
+ *              walk_state          - Current walk
+ *              op                  - Current (executing) parse op
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Command dispatcher.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_db_command_dispatch(char *input_buffer,
+			 struct acpi_walk_state * walk_state,
+			 union acpi_parse_object * op)
+{
+	u32 temp;
+	u32 command_index;
+	u32 param_count;
+	char *command_line;
+	acpi_status status = AE_CTRL_TRUE;
+
+	/* If acpi_terminate has been called, terminate this thread */
+
+	if (acpi_gbl_db_terminate_loop) {
+		return (AE_CTRL_TERMINATE);
+	}
+
+	/* Find command and add to the history buffer */
+
+	param_count = acpi_db_get_line(input_buffer);
+	command_index = acpi_db_match_command(acpi_gbl_db_args[0]);
+	temp = 0;
+
+	/*
+	 * We don't want to add the !! command to the history buffer. It
+	 * would cause an infinite loop because it would always be the
+	 * previous command.
+	 */
+	if (command_index != CMD_HISTORY_LAST) {
+		acpi_db_add_to_history(input_buffer);
+	}
+
+	/* Verify that we have the minimum number of params */
+
+	if (param_count < acpi_gbl_db_commands[command_index].min_args) {
+		acpi_os_printf
+		    ("%u parameters entered, [%s] requires %u parameters\n",
+		     param_count, acpi_gbl_db_commands[command_index].name,
+		     acpi_gbl_db_commands[command_index].min_args);
+
+		acpi_db_display_command_info(acpi_gbl_db_commands
+					     [command_index].name, FALSE);
+		return (AE_CTRL_TRUE);
+	}
+
+	/* Decode and dispatch the command */
+
+	switch (command_index) {
+	case CMD_NULL:
+
+		if (op) {
+			return (AE_OK);
+		}
+		break;
+
+	case CMD_ALLOCATIONS:
+
+#ifdef ACPI_DBG_TRACK_ALLOCATIONS
+		acpi_ut_dump_allocations((u32)-1, NULL);
+#endif
+		break;
+
+	case CMD_ARGS:
+	case CMD_ARGUMENTS:
+
+		acpi_db_display_arguments();
+		break;
+
+	case CMD_BREAKPOINT:
+
+		acpi_db_set_method_breakpoint(acpi_gbl_db_args[1], walk_state,
+					      op);
+		break;
+
+	case CMD_BUSINFO:
+
+		acpi_db_get_bus_info();
+		break;
+
+	case CMD_CALL:
+
+		acpi_db_set_method_call_breakpoint(op);
+		status = AE_OK;
+		break;
+
+	case CMD_DEBUG:
+
+		acpi_db_execute(acpi_gbl_db_args[1],
+				&acpi_gbl_db_args[2], &acpi_gbl_db_arg_types[2],
+				EX_SINGLE_STEP);
+		break;
+
+	case CMD_DISASSEMBLE:
+	case CMD_DISASM:
+
+		(void)acpi_db_disassemble_method(acpi_gbl_db_args[1]);
+		break;
+
+	case CMD_DUMP:
+
+		acpi_db_decode_and_display_object(acpi_gbl_db_args[1],
+						  acpi_gbl_db_args[2]);
+		break;
+
+	case CMD_EVALUATE:
+	case CMD_EXECUTE:
+
+		acpi_db_execute(acpi_gbl_db_args[1],
+				&acpi_gbl_db_args[2], &acpi_gbl_db_arg_types[2],
+				EX_NO_SINGLE_STEP);
+		break;
+
+	case CMD_FIND:
+
+		status = acpi_db_find_name_in_namespace(acpi_gbl_db_args[1]);
+		break;
+
+	case CMD_GO:
+
+		acpi_gbl_cm_single_step = FALSE;
+		return (AE_OK);
+
+	case CMD_HANDLERS:
+
+		acpi_db_display_handlers();
+		break;
+
+	case CMD_HELP:
+	case CMD_HELP2:
+
+		acpi_db_display_help(acpi_gbl_db_args[1]);
+		break;
+
+	case CMD_HISTORY:
+
+		acpi_db_display_history();
+		break;
+
+	case CMD_HISTORY_EXE:	/* ! command */
+
+		command_line = acpi_db_get_from_history(acpi_gbl_db_args[1]);
+		if (!command_line) {
+			return (AE_CTRL_TRUE);
+		}
+
+		status = acpi_db_command_dispatch(command_line, walk_state, op);
+		return (status);
+
+	case CMD_HISTORY_LAST:	/* !! command */
+
+		command_line = acpi_db_get_from_history(NULL);
+		if (!command_line) {
+			return (AE_CTRL_TRUE);
+		}
+
+		status = acpi_db_command_dispatch(command_line, walk_state, op);
+		return (status);
+
+	case CMD_INFORMATION:
+
+		acpi_db_display_method_info(op);
+		break;
+
+	case CMD_INTEGRITY:
+
+		acpi_db_check_integrity();
+		break;
+
+	case CMD_INTO:
+
+		if (op) {
+			acpi_gbl_cm_single_step = TRUE;
+			return (AE_OK);
+		}
+		break;
+
+	case CMD_LEVEL:
+
+		if (param_count == 0) {
+			acpi_os_printf
+			    ("Current debug level for file output is:    %8.8lX\n",
+			     acpi_gbl_db_debug_level);
+			acpi_os_printf
+			    ("Current debug level for console output is: %8.8lX\n",
+			     acpi_gbl_db_console_debug_level);
+		} else if (param_count == 2) {
+			temp = acpi_gbl_db_console_debug_level;
+			acpi_gbl_db_console_debug_level =
+			    strtoul(acpi_gbl_db_args[1], NULL, 16);
+			acpi_os_printf
+			    ("Debug Level for console output was %8.8lX, now %8.8lX\n",
+			     temp, acpi_gbl_db_console_debug_level);
+		} else {
+			temp = acpi_gbl_db_debug_level;
+			acpi_gbl_db_debug_level =
+			    strtoul(acpi_gbl_db_args[1], NULL, 16);
+			acpi_os_printf
+			    ("Debug Level for file output was %8.8lX, now %8.8lX\n",
+			     temp, acpi_gbl_db_debug_level);
+		}
+		break;
+
+	case CMD_LIST:
+
+		acpi_db_disassemble_aml(acpi_gbl_db_args[1], op);
+		break;
+
+	case CMD_LOCKS:
+
+		acpi_db_display_locks();
+		break;
+
+	case CMD_LOCALS:
+
+		acpi_db_display_locals();
+		break;
+
+	case CMD_METHODS:
+
+		status = acpi_db_display_objects("METHOD", acpi_gbl_db_args[1]);
+		break;
+
+	case CMD_NAMESPACE:
+
+		acpi_db_dump_namespace(acpi_gbl_db_args[1],
+				       acpi_gbl_db_args[2]);
+		break;
+
+	case CMD_NOTIFY:
+
+		temp = strtoul(acpi_gbl_db_args[2], NULL, 0);
+		acpi_db_send_notify(acpi_gbl_db_args[1], temp);
+		break;
+
+	case CMD_OBJECTS:
+
+		acpi_ut_strupr(acpi_gbl_db_args[1]);
+		status =
+		    acpi_db_display_objects(acpi_gbl_db_args[1],
+					    acpi_gbl_db_args[2]);
+		break;
+
+	case CMD_OSI:
+
+		acpi_db_display_interfaces(acpi_gbl_db_args[1],
+					   acpi_gbl_db_args[2]);
+		break;
+
+	case CMD_OWNER:
+
+		acpi_db_dump_namespace_by_owner(acpi_gbl_db_args[1],
+						acpi_gbl_db_args[2]);
+		break;
+
+	case CMD_PATHS:
+
+		acpi_db_dump_namespace_paths();
+		break;
+
+	case CMD_PREFIX:
+
+		acpi_db_set_scope(acpi_gbl_db_args[1]);
+		break;
+
+	case CMD_REFERENCES:
+
+		acpi_db_find_references(acpi_gbl_db_args[1]);
+		break;
+
+	case CMD_RESOURCES:
+
+		acpi_db_display_resources(acpi_gbl_db_args[1]);
+		break;
+
+	case CMD_RESULTS:
+
+		acpi_db_display_results();
+		break;
+
+	case CMD_SET:
+
+		acpi_db_set_method_data(acpi_gbl_db_args[1],
+					acpi_gbl_db_args[2],
+					acpi_gbl_db_args[3]);
+		break;
+
+	case CMD_STATS:
+
+		status = acpi_db_display_statistics(acpi_gbl_db_args[1]);
+		break;
+
+	case CMD_STOP:
+
+		return (AE_NOT_IMPLEMENTED);
+
+	case CMD_TABLES:
+
+		acpi_db_display_table_info(acpi_gbl_db_args[1]);
+		break;
+
+	case CMD_TEMPLATE:
+
+		acpi_db_display_template(acpi_gbl_db_args[1]);
+		break;
+
+	case CMD_TRACE:
+
+		acpi_db_trace(acpi_gbl_db_args[1], acpi_gbl_db_args[2],
+			      acpi_gbl_db_args[3]);
+		break;
+
+	case CMD_TREE:
+
+		acpi_db_display_calling_tree();
+		break;
+
+	case CMD_TYPE:
+
+		acpi_db_display_object_type(acpi_gbl_db_args[1]);
+		break;
+
+#ifdef ACPI_APPLICATION
+
+		/* Hardware simulation commands. */
+
+	case CMD_ENABLEACPI:
+#if (!ACPI_REDUCED_HARDWARE)
+
+		status = acpi_enable();
+		if (ACPI_FAILURE(status)) {
+			acpi_os_printf("AcpiEnable failed (Status=%X)\n",
+				       status);
+			return (status);
+		}
+#endif				/* !ACPI_REDUCED_HARDWARE */
+		break;
+
+	case CMD_EVENT:
+
+		acpi_os_printf("Event command not implemented\n");
+		break;
+
+	case CMD_GPE:
+
+		acpi_db_generate_gpe(acpi_gbl_db_args[1], acpi_gbl_db_args[2]);
+		break;
+
+	case CMD_GPES:
+
+		acpi_db_display_gpes();
+		break;
+
+	case CMD_SCI:
+
+		acpi_db_generate_sci();
+		break;
+
+	case CMD_SLEEP:
+
+		status = acpi_db_sleep(acpi_gbl_db_args[1]);
+		break;
+
+		/* File I/O commands. */
+
+	case CMD_CLOSE:
+
+		acpi_db_close_debug_file();
+		break;
+
+	case CMD_LOAD:
+
+		status =
+		    acpi_db_get_table_from_file(acpi_gbl_db_args[1], NULL,
+						FALSE);
+		break;
+
+	case CMD_OPEN:
+
+		acpi_db_open_debug_file(acpi_gbl_db_args[1]);
+		break;
+
+		/* User space commands. */
+
+	case CMD_TERMINATE:
+
+		acpi_db_set_output_destination(ACPI_DB_REDIRECTABLE_OUTPUT);
+		acpi_ut_subsystem_shutdown();
+
+		/*
+		 * TBD: [Restructure] Need some way to re-initialize without
+		 * re-creating the semaphores!
+		 */
+
+		acpi_gbl_db_terminate_loop = TRUE;
+		/*  acpi_initialize (NULL); */
+		break;
+
+	case CMD_THREADS:
+
+		acpi_db_create_execution_threads(acpi_gbl_db_args[1],
+						 acpi_gbl_db_args[2],
+						 acpi_gbl_db_args[3]);
+		break;
+
+		/* Debug test commands. */
+
+	case CMD_PREDEFINED:
+
+		acpi_db_check_predefined_names();
+		break;
+
+	case CMD_TEST:
+
+		acpi_db_execute_test(acpi_gbl_db_args[1]);
+		break;
+
+	case CMD_UNLOAD:
+
+		acpi_db_unload_acpi_table(acpi_gbl_db_args[1]);
+		break;
+#endif
+
+	case CMD_EXIT:
+	case CMD_QUIT:
+
+		if (op) {
+			acpi_os_printf("Method execution terminated\n");
+			return (AE_CTRL_TERMINATE);
+		}
+
+		if (!acpi_gbl_db_output_to_file) {
+			acpi_dbg_level = ACPI_DEBUG_DEFAULT;
+		}
+#ifdef ACPI_APPLICATION
+		acpi_db_close_debug_file();
+#endif
+		acpi_gbl_db_terminate_loop = TRUE;
+		return (AE_CTRL_TERMINATE);
+
+	case CMD_NOT_FOUND:
+	default:
+
+		acpi_os_printf("%s: unknown command\n", acpi_gbl_db_args[0]);
+		return (AE_CTRL_TRUE);
+	}
+
+	if (ACPI_SUCCESS(status)) {
+		status = AE_CTRL_TRUE;
+	}
+
+	return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_execute_thread
+ *
+ * PARAMETERS:  context         - Not used
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Debugger execute thread. Waits for a command line, then
+ *              simply dispatches it.
+ *
+ ******************************************************************************/
+
+void ACPI_SYSTEM_XFACE acpi_db_execute_thread(void *context)
+{
+	acpi_status status = AE_OK;
+	acpi_status Mstatus;
+
+	while (status != AE_CTRL_TERMINATE && !acpi_gbl_db_terminate_loop) {
+		acpi_gbl_method_executing = FALSE;
+		acpi_gbl_step_to_next_call = FALSE;
+
+		Mstatus = acpi_os_acquire_mutex(acpi_gbl_db_command_ready,
+						ACPI_WAIT_FOREVER);
+		if (ACPI_FAILURE(Mstatus)) {
+			return;
+		}
+
+		status =
+		    acpi_db_command_dispatch(acpi_gbl_db_line_buf, NULL, NULL);
+
+		acpi_os_release_mutex(acpi_gbl_db_command_complete);
+	}
+	acpi_gbl_db_threads_terminated = TRUE;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_single_thread
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Debugger execute thread. Waits for a command line, then
+ *              simply dispatches it.
+ *
+ ******************************************************************************/
+
+static void acpi_db_single_thread(void)
+{
+
+	acpi_gbl_method_executing = FALSE;
+	acpi_gbl_step_to_next_call = FALSE;
+
+	(void)acpi_db_command_dispatch(acpi_gbl_db_line_buf, NULL, NULL);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_user_commands
+ *
+ * PARAMETERS:  prompt              - User prompt (depends on mode)
+ *              op                  - Current executing parse op
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Command line execution for the AML debugger. Commands are
+ *              matched and dispatched here.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_db_user_commands(char prompt, union acpi_parse_object *op)
+{
+	acpi_status status = AE_OK;
+
+	acpi_os_printf("\n");
+
+	/* TBD: [Restructure] Need a separate command line buffer for step mode */
+
+	while (!acpi_gbl_db_terminate_loop) {
+
+		/* Force output to console until a command is entered */
+
+		acpi_db_set_output_destination(ACPI_DB_CONSOLE_OUTPUT);
+
+		/* Different prompt if method is executing */
+
+		if (!acpi_gbl_method_executing) {
+			acpi_os_printf("%1c ", ACPI_DEBUGGER_COMMAND_PROMPT);
+		} else {
+			acpi_os_printf("%1c ", ACPI_DEBUGGER_EXECUTE_PROMPT);
+		}
+
+		/* Get the user input line */
+
+		status = acpi_os_get_line(acpi_gbl_db_line_buf,
+					  ACPI_DB_LINE_BUFFER_SIZE, NULL);
+		if (ACPI_FAILURE(status)) {
+			ACPI_EXCEPTION((AE_INFO, status,
+					"While parsing command line"));
+			return (status);
+		}
+
+		/* Check for single or multithreaded debug */
+
+		if (acpi_gbl_debugger_configuration & DEBUGGER_MULTI_THREADED) {
+			/*
+			 * Signal the debug thread that we have a command to execute,
+			 * and wait for the command to complete.
+			 */
+			acpi_os_release_mutex(acpi_gbl_db_command_ready);
+			if (ACPI_FAILURE(status)) {
+				return (status);
+			}
+
+			status =
+			    acpi_os_acquire_mutex(acpi_gbl_db_command_complete,
+						  ACPI_WAIT_FOREVER);
+			if (ACPI_FAILURE(status)) {
+				return (status);
+			}
+		} else {
+			/* Just call to the command line interpreter */
+
+			acpi_db_single_thread();
+		}
+	}
+
+	return (status);
+}
diff --git a/drivers/acpi/acpica/dbmethod.c b/drivers/acpi/acpica/dbmethod.c
new file mode 100644
index 0000000..01e5a71
--- /dev/null
+++ b/drivers/acpi/acpica/dbmethod.c
@@ -0,0 +1,369 @@
+/*******************************************************************************
+ *
+ * Module Name: dbmethod - Debug commands for control methods
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2015, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acdispat.h"
+#include "acnamesp.h"
+#include "acdebug.h"
+#include "acparser.h"
+#include "acpredef.h"
+
+#define _COMPONENT          ACPI_CA_DEBUGGER
+ACPI_MODULE_NAME("dbmethod")
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_set_method_breakpoint
+ *
+ * PARAMETERS:  location            - AML offset of breakpoint
+ *              walk_state          - Current walk info
+ *              op                  - Current Op (from parse walk)
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Set a breakpoint in a control method at the specified
+ *              AML offset
+ *
+ ******************************************************************************/
+void
+acpi_db_set_method_breakpoint(char *location,
+			      struct acpi_walk_state *walk_state,
+			      union acpi_parse_object *op)
+{
+	u32 address;
+	u32 aml_offset;
+
+	if (!op) {
+		acpi_os_printf("There is no method currently executing\n");
+		return;
+	}
+
+	/* Get and verify the breakpoint address */
+
+	address = strtoul(location, NULL, 16);
+	aml_offset = (u32)ACPI_PTR_DIFF(op->common.aml,
+					walk_state->parser_state.aml_start);
+	if (address <= aml_offset) {
+		acpi_os_printf("Breakpoint %X is beyond current address %X\n",
+			       address, aml_offset);
+	}
+
+	/* Save breakpoint in current walk */
+
+	walk_state->user_breakpoint = address;
+	acpi_os_printf("Breakpoint set at AML offset %X\n", address);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_set_method_call_breakpoint
+ *
+ * PARAMETERS:  op                  - Current Op (from parse walk)
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Set a breakpoint in a control method at the specified
+ *              AML offset
+ *
+ ******************************************************************************/
+
+void acpi_db_set_method_call_breakpoint(union acpi_parse_object *op)
+{
+
+	if (!op) {
+		acpi_os_printf("There is no method currently executing\n");
+		return;
+	}
+
+	acpi_gbl_step_to_next_call = TRUE;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_set_method_data
+ *
+ * PARAMETERS:  type_arg        - L for local, A for argument
+ *              index_arg       - which one
+ *              value_arg       - Value to set.
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Set a local or argument for the running control method.
+ *              NOTE: only object supported is Number.
+ *
+ ******************************************************************************/
+
+void acpi_db_set_method_data(char *type_arg, char *index_arg, char *value_arg)
+{
+	char type;
+	u32 index;
+	u32 value;
+	struct acpi_walk_state *walk_state;
+	union acpi_operand_object *obj_desc;
+	acpi_status status;
+	struct acpi_namespace_node *node;
+
+	/* Validate type_arg */
+
+	acpi_ut_strupr(type_arg);
+	type = type_arg[0];
+	if ((type != 'L') && (type != 'A') && (type != 'N')) {
+		acpi_os_printf("Invalid SET operand: %s\n", type_arg);
+		return;
+	}
+
+	value = strtoul(value_arg, NULL, 16);
+
+	if (type == 'N') {
+		node = acpi_db_convert_to_node(index_arg);
+		if (!node) {
+			return;
+		}
+
+		if (node->type != ACPI_TYPE_INTEGER) {
+			acpi_os_printf("Can only set Integer nodes\n");
+			return;
+		}
+		obj_desc = node->object;
+		obj_desc->integer.value = value;
+		return;
+	}
+
+	/* Get the index and value */
+
+	index = strtoul(index_arg, NULL, 16);
+
+	walk_state = acpi_ds_get_current_walk_state(acpi_gbl_current_walk_list);
+	if (!walk_state) {
+		acpi_os_printf("There is no method currently executing\n");
+		return;
+	}
+
+	/* Create and initialize the new object */
+
+	obj_desc = acpi_ut_create_integer_object((u64)value);
+	if (!obj_desc) {
+		acpi_os_printf("Could not create an internal object\n");
+		return;
+	}
+
+	/* Store the new object into the target */
+
+	switch (type) {
+	case 'A':
+
+		/* Set a method argument */
+
+		if (index > ACPI_METHOD_MAX_ARG) {
+			acpi_os_printf("Arg%u - Invalid argument name\n",
+				       index);
+			goto cleanup;
+		}
+
+		status = acpi_ds_store_object_to_local(ACPI_REFCLASS_ARG,
+						       index, obj_desc,
+						       walk_state);
+		if (ACPI_FAILURE(status)) {
+			goto cleanup;
+		}
+
+		obj_desc = walk_state->arguments[index].object;
+
+		acpi_os_printf("Arg%u: ", index);
+		acpi_db_display_internal_object(obj_desc, walk_state);
+		break;
+
+	case 'L':
+
+		/* Set a method local */
+
+		if (index > ACPI_METHOD_MAX_LOCAL) {
+			acpi_os_printf
+			    ("Local%u - Invalid local variable name\n", index);
+			goto cleanup;
+		}
+
+		status = acpi_ds_store_object_to_local(ACPI_REFCLASS_LOCAL,
+						       index, obj_desc,
+						       walk_state);
+		if (ACPI_FAILURE(status)) {
+			goto cleanup;
+		}
+
+		obj_desc = walk_state->local_variables[index].object;
+
+		acpi_os_printf("Local%u: ", index);
+		acpi_db_display_internal_object(obj_desc, walk_state);
+		break;
+
+	default:
+
+		break;
+	}
+
+cleanup:
+	acpi_ut_remove_reference(obj_desc);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_disassemble_aml
+ *
+ * PARAMETERS:  statements          - Number of statements to disassemble
+ *              op                  - Current Op (from parse walk)
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Display disassembled AML (ASL) starting from Op for the number
+ *              of statements specified.
+ *
+ ******************************************************************************/
+
+void acpi_db_disassemble_aml(char *statements, union acpi_parse_object *op)
+{
+	u32 num_statements = 8;
+
+	if (!op) {
+		acpi_os_printf("There is no method currently executing\n");
+		return;
+	}
+
+	if (statements) {
+		num_statements = strtoul(statements, NULL, 0);
+	}
+#ifdef ACPI_DISASSEMBLER
+	acpi_dm_disassemble(NULL, op, num_statements);
+#endif
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_disassemble_method
+ *
+ * PARAMETERS:  name            - Name of control method
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Display disassembled AML (ASL) starting from Op for the number
+ *              of statements specified.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_db_disassemble_method(char *name)
+{
+	acpi_status status;
+	union acpi_parse_object *op;
+	struct acpi_walk_state *walk_state;
+	union acpi_operand_object *obj_desc;
+	struct acpi_namespace_node *method;
+
+	method = acpi_db_convert_to_node(name);
+	if (!method) {
+		return (AE_BAD_PARAMETER);
+	}
+
+	if (method->type != ACPI_TYPE_METHOD) {
+		ACPI_ERROR((AE_INFO, "%s (%s): Object must be a control method",
+			    name, acpi_ut_get_type_name(method->type)));
+		return (AE_BAD_PARAMETER);
+	}
+
+	obj_desc = method->object;
+
+	op = acpi_ps_create_scope_op(obj_desc->method.aml_start);
+	if (!op) {
+		return (AE_NO_MEMORY);
+	}
+
+	/* Create and initialize a new walk state */
+
+	walk_state = acpi_ds_create_walk_state(0, op, NULL, NULL);
+	if (!walk_state) {
+		return (AE_NO_MEMORY);
+	}
+
+	status = acpi_ds_init_aml_walk(walk_state, op, NULL,
+				       obj_desc->method.aml_start,
+				       obj_desc->method.aml_length, NULL,
+				       ACPI_IMODE_LOAD_PASS1);
+	if (ACPI_FAILURE(status)) {
+		return (status);
+	}
+
+	status = acpi_ut_allocate_owner_id(&obj_desc->method.owner_id);
+	walk_state->owner_id = obj_desc->method.owner_id;
+
+	/* Push start scope on scope stack and make it current */
+
+	status = acpi_ds_scope_stack_push(method, method->type, walk_state);
+	if (ACPI_FAILURE(status)) {
+		return (status);
+	}
+
+	/* Parse the entire method AML including deferred operators */
+
+	walk_state->parse_flags &= ~ACPI_PARSE_DELETE_TREE;
+	walk_state->parse_flags |= ACPI_PARSE_DISASSEMBLE;
+
+	status = acpi_ps_parse_aml(walk_state);
+
+#ifdef ACPI_DISASSEMBLER
+	(void)acpi_dm_parse_deferred_ops(op);
+
+	/* Now we can disassemble the method */
+
+	acpi_gbl_dm_opt_verbose = FALSE;
+	acpi_dm_disassemble(NULL, op, 0);
+	acpi_gbl_dm_opt_verbose = TRUE;
+#endif
+
+	acpi_ps_delete_parse_tree(op);
+
+	/* Method cleanup */
+
+	acpi_ns_delete_namespace_subtree(method);
+	acpi_ns_delete_namespace_by_owner(obj_desc->method.owner_id);
+	acpi_ut_release_owner_id(&obj_desc->method.owner_id);
+	return (AE_OK);
+}
diff --git a/drivers/acpi/acpica/dbnames.c b/drivers/acpi/acpica/dbnames.c
new file mode 100644
index 0000000..04ff1eb
--- /dev/null
+++ b/drivers/acpi/acpica/dbnames.c
@@ -0,0 +1,947 @@
+/*******************************************************************************
+ *
+ * Module Name: dbnames - Debugger commands for the acpi namespace
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2015, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acnamesp.h"
+#include "acdebug.h"
+#include "acpredef.h"
+
+#define _COMPONENT          ACPI_CA_DEBUGGER
+ACPI_MODULE_NAME("dbnames")
+
+/* Local prototypes */
+static acpi_status
+acpi_db_walk_and_match_name(acpi_handle obj_handle,
+			    u32 nesting_level,
+			    void *context, void **return_value);
+
+static acpi_status
+acpi_db_walk_for_predefined_names(acpi_handle obj_handle,
+				  u32 nesting_level,
+				  void *context, void **return_value);
+
+static acpi_status
+acpi_db_walk_for_specific_objects(acpi_handle obj_handle,
+				  u32 nesting_level,
+				  void *context, void **return_value);
+
+static acpi_status
+acpi_db_walk_for_object_counts(acpi_handle obj_handle,
+			       u32 nesting_level,
+			       void *context, void **return_value);
+
+static acpi_status
+acpi_db_integrity_walk(acpi_handle obj_handle,
+		       u32 nesting_level, void *context, void **return_value);
+
+static acpi_status
+acpi_db_walk_for_references(acpi_handle obj_handle,
+			    u32 nesting_level,
+			    void *context, void **return_value);
+
+static acpi_status
+acpi_db_bus_walk(acpi_handle obj_handle,
+		 u32 nesting_level, void *context, void **return_value);
+
+/*
+ * Arguments for the Objects command
+ * These object types map directly to the ACPI_TYPES
+ */
+static struct acpi_db_argument_info acpi_db_object_types[] = {
+	{"ANY"},
+	{"INTEGERS"},
+	{"STRINGS"},
+	{"BUFFERS"},
+	{"PACKAGES"},
+	{"FIELDS"},
+	{"DEVICES"},
+	{"EVENTS"},
+	{"METHODS"},
+	{"MUTEXES"},
+	{"REGIONS"},
+	{"POWERRESOURCES"},
+	{"PROCESSORS"},
+	{"THERMALZONES"},
+	{"BUFFERFIELDS"},
+	{"DDBHANDLES"},
+	{"DEBUG"},
+	{"REGIONFIELDS"},
+	{"BANKFIELDS"},
+	{"INDEXFIELDS"},
+	{"REFERENCES"},
+	{"ALIASES"},
+	{"METHODALIASES"},
+	{"NOTIFY"},
+	{"ADDRESSHANDLER"},
+	{"RESOURCE"},
+	{"RESOURCEFIELD"},
+	{"SCOPES"},
+	{NULL}			/* Must be null terminated */
+};
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_set_scope
+ *
+ * PARAMETERS:  name                - New scope path
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Set the "current scope" as maintained by this utility.
+ *              The scope is used as a prefix to ACPI paths.
+ *
+ ******************************************************************************/
+
+void acpi_db_set_scope(char *name)
+{
+	acpi_status status;
+	struct acpi_namespace_node *node;
+
+	if (!name || name[0] == 0) {
+		acpi_os_printf("Current scope: %s\n", acpi_gbl_db_scope_buf);
+		return;
+	}
+
+	acpi_db_prep_namestring(name);
+
+	if (ACPI_IS_ROOT_PREFIX(name[0])) {
+
+		/* Validate new scope from the root */
+
+		status = acpi_ns_get_node(acpi_gbl_root_node, name,
+					  ACPI_NS_NO_UPSEARCH, &node);
+		if (ACPI_FAILURE(status)) {
+			goto error_exit;
+		}
+
+		acpi_gbl_db_scope_buf[0] = 0;
+	} else {
+		/* Validate new scope relative to old scope */
+
+		status = acpi_ns_get_node(acpi_gbl_db_scope_node, name,
+					  ACPI_NS_NO_UPSEARCH, &node);
+		if (ACPI_FAILURE(status)) {
+			goto error_exit;
+		}
+	}
+
+	/* Build the final pathname */
+
+	if (acpi_ut_safe_strcat
+	    (acpi_gbl_db_scope_buf, sizeof(acpi_gbl_db_scope_buf), name)) {
+		status = AE_BUFFER_OVERFLOW;
+		goto error_exit;
+	}
+
+	if (acpi_ut_safe_strcat
+	    (acpi_gbl_db_scope_buf, sizeof(acpi_gbl_db_scope_buf), "\\")) {
+		status = AE_BUFFER_OVERFLOW;
+		goto error_exit;
+	}
+
+	acpi_gbl_db_scope_node = node;
+	acpi_os_printf("New scope: %s\n", acpi_gbl_db_scope_buf);
+	return;
+
+error_exit:
+
+	acpi_os_printf("Could not attach scope: %s, %s\n",
+		       name, acpi_format_exception(status));
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_dump_namespace
+ *
+ * PARAMETERS:  start_arg       - Node to begin namespace dump
+ *              depth_arg       - Maximum tree depth to be dumped
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Dump entire namespace or a subtree. Each node is displayed
+ *              with type and other information.
+ *
+ ******************************************************************************/
+
+void acpi_db_dump_namespace(char *start_arg, char *depth_arg)
+{
+	acpi_handle subtree_entry = acpi_gbl_root_node;
+	u32 max_depth = ACPI_UINT32_MAX;
+
+	/* No argument given, just start at the root and dump entire namespace */
+
+	if (start_arg) {
+		subtree_entry = acpi_db_convert_to_node(start_arg);
+		if (!subtree_entry) {
+			return;
+		}
+
+		/* Now we can check for the depth argument */
+
+		if (depth_arg) {
+			max_depth = strtoul(depth_arg, NULL, 0);
+		}
+	}
+
+	acpi_db_set_output_destination(ACPI_DB_DUPLICATE_OUTPUT);
+	acpi_os_printf("ACPI Namespace (from %4.4s (%p) subtree):\n",
+		       ((struct acpi_namespace_node *)subtree_entry)->name.
+		       ascii, subtree_entry);
+
+	/* Display the subtree */
+
+	acpi_db_set_output_destination(ACPI_DB_REDIRECTABLE_OUTPUT);
+	acpi_ns_dump_objects(ACPI_TYPE_ANY, ACPI_DISPLAY_SUMMARY, max_depth,
+			     ACPI_OWNER_ID_MAX, subtree_entry);
+	acpi_db_set_output_destination(ACPI_DB_CONSOLE_OUTPUT);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_dump_namespace_paths
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Dump entire namespace with full object pathnames and object
+ *              type information. Alternative to "namespace" command.
+ *
+ ******************************************************************************/
+
+void acpi_db_dump_namespace_paths(void)
+{
+
+	acpi_db_set_output_destination(ACPI_DB_DUPLICATE_OUTPUT);
+	acpi_os_printf("ACPI Namespace (from root):\n");
+
+	/* Display the entire namespace */
+
+	acpi_db_set_output_destination(ACPI_DB_REDIRECTABLE_OUTPUT);
+	acpi_ns_dump_object_paths(ACPI_TYPE_ANY, ACPI_DISPLAY_SUMMARY,
+				  ACPI_UINT32_MAX, ACPI_OWNER_ID_MAX,
+				  acpi_gbl_root_node);
+
+	acpi_db_set_output_destination(ACPI_DB_CONSOLE_OUTPUT);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_dump_namespace_by_owner
+ *
+ * PARAMETERS:  owner_arg       - Owner ID whose nodes will be displayed
+ *              depth_arg       - Maximum tree depth to be dumped
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Dump elements of the namespace that are owned by the owner_id.
+ *
+ ******************************************************************************/
+
+void acpi_db_dump_namespace_by_owner(char *owner_arg, char *depth_arg)
+{
+	acpi_handle subtree_entry = acpi_gbl_root_node;
+	u32 max_depth = ACPI_UINT32_MAX;
+	acpi_owner_id owner_id;
+
+	owner_id = (acpi_owner_id) strtoul(owner_arg, NULL, 0);
+
+	/* Now we can check for the depth argument */
+
+	if (depth_arg) {
+		max_depth = strtoul(depth_arg, NULL, 0);
+	}
+
+	acpi_db_set_output_destination(ACPI_DB_DUPLICATE_OUTPUT);
+	acpi_os_printf("ACPI Namespace by owner %X:\n", owner_id);
+
+	/* Display the subtree */
+
+	acpi_db_set_output_destination(ACPI_DB_REDIRECTABLE_OUTPUT);
+	acpi_ns_dump_objects(ACPI_TYPE_ANY, ACPI_DISPLAY_SUMMARY, max_depth,
+			     owner_id, subtree_entry);
+	acpi_db_set_output_destination(ACPI_DB_CONSOLE_OUTPUT);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_walk_and_match_name
+ *
+ * PARAMETERS:  Callback from walk_namespace
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Find a particular name/names within the namespace. Wildcards
+ *              are supported -- '?' matches any character.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_db_walk_and_match_name(acpi_handle obj_handle,
+			    u32 nesting_level,
+			    void *context, void **return_value)
+{
+	acpi_status status;
+	char *requested_name = (char *)context;
+	u32 i;
+	struct acpi_buffer buffer;
+	struct acpi_walk_info info;
+
+	/* Check for a name match */
+
+	for (i = 0; i < 4; i++) {
+
+		/* Wildcard support */
+
+		if ((requested_name[i] != '?') &&
+		    (requested_name[i] != ((struct acpi_namespace_node *)
+					   obj_handle)->name.ascii[i])) {
+
+			/* No match, just exit */
+
+			return (AE_OK);
+		}
+	}
+
+	/* Get the full pathname to this object */
+
+	buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
+	status = acpi_ns_handle_to_pathname(obj_handle, &buffer, TRUE);
+	if (ACPI_FAILURE(status)) {
+		acpi_os_printf("Could Not get pathname for object %p\n",
+			       obj_handle);
+	} else {
+		info.owner_id = ACPI_OWNER_ID_MAX;
+		info.debug_level = ACPI_UINT32_MAX;
+		info.display_type = ACPI_DISPLAY_SUMMARY | ACPI_DISPLAY_SHORT;
+
+		acpi_os_printf("%32s", (char *)buffer.pointer);
+		(void)acpi_ns_dump_one_object(obj_handle, nesting_level, &info,
+					      NULL);
+		ACPI_FREE(buffer.pointer);
+	}
+
+	return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_find_name_in_namespace
+ *
+ * PARAMETERS:  name_arg        - The 4-character ACPI name to find.
+ *                                wildcards are supported.
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Search the namespace for a given name (with wildcards)
+ *
+ ******************************************************************************/
+
+acpi_status acpi_db_find_name_in_namespace(char *name_arg)
+{
+	char acpi_name[5] = "____";
+	char *acpi_name_ptr = acpi_name;
+
+	if (strlen(name_arg) > ACPI_NAME_SIZE) {
+		acpi_os_printf("Name must be no longer than 4 characters\n");
+		return (AE_OK);
+	}
+
+	/* Pad out name with underscores as necessary to create a 4-char name */
+
+	acpi_ut_strupr(name_arg);
+	while (*name_arg) {
+		*acpi_name_ptr = *name_arg;
+		acpi_name_ptr++;
+		name_arg++;
+	}
+
+	/* Walk the namespace from the root */
+
+	(void)acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
+				  ACPI_UINT32_MAX, acpi_db_walk_and_match_name,
+				  NULL, acpi_name, NULL);
+
+	acpi_db_set_output_destination(ACPI_DB_CONSOLE_OUTPUT);
+	return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_walk_for_predefined_names
+ *
+ * PARAMETERS:  Callback from walk_namespace
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Detect and display predefined ACPI names (names that start with
+ *              an underscore)
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_db_walk_for_predefined_names(acpi_handle obj_handle,
+				  u32 nesting_level,
+				  void *context, void **return_value)
+{
+	struct acpi_namespace_node *node =
+	    (struct acpi_namespace_node *)obj_handle;
+	u32 *count = (u32 *)context;
+	const union acpi_predefined_info *predefined;
+	const union acpi_predefined_info *package = NULL;
+	char *pathname;
+	char string_buffer[48];
+
+	predefined = acpi_ut_match_predefined_method(node->name.ascii);
+	if (!predefined) {
+		return (AE_OK);
+	}
+
+	pathname = acpi_ns_get_external_pathname(node);
+	if (!pathname) {
+		return (AE_OK);
+	}
+
+	/* If method returns a package, the info is in the next table entry */
+
+	if (predefined->info.expected_btypes & ACPI_RTYPE_PACKAGE) {
+		package = predefined + 1;
+	}
+
+	acpi_ut_get_expected_return_types(string_buffer,
+					  predefined->info.expected_btypes);
+
+	acpi_os_printf("%-32s Arguments %X, Return Types: %s", pathname,
+		       METHOD_GET_ARG_COUNT(predefined->info.argument_list),
+		       string_buffer);
+
+	if (package) {
+		acpi_os_printf(" (PkgType %2.2X, ObjType %2.2X, Count %2.2X)",
+			       package->ret_info.type,
+			       package->ret_info.object_type1,
+			       package->ret_info.count1);
+	}
+
+	acpi_os_printf("\n");
+
+	/* Check that the declared argument count matches the ACPI spec */
+
+	acpi_ns_check_acpi_compliance(pathname, node, predefined);
+
+	ACPI_FREE(pathname);
+	(*count)++;
+	return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_check_predefined_names
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Validate all predefined names in the namespace
+ *
+ ******************************************************************************/
+
+void acpi_db_check_predefined_names(void)
+{
+	u32 count = 0;
+
+	/* Search all nodes in namespace */
+
+	(void)acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
+				  ACPI_UINT32_MAX,
+				  acpi_db_walk_for_predefined_names, NULL,
+				  (void *)&count, NULL);
+
+	acpi_os_printf("Found %u predefined names in the namespace\n", count);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_walk_for_object_counts
+ *
+ * PARAMETERS:  Callback from walk_namespace
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Display short info about objects in the namespace
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_db_walk_for_object_counts(acpi_handle obj_handle,
+			       u32 nesting_level,
+			       void *context, void **return_value)
+{
+	struct acpi_object_info *info = (struct acpi_object_info *)context;
+	struct acpi_namespace_node *node =
+	    (struct acpi_namespace_node *)obj_handle;
+
+	if (node->type > ACPI_TYPE_NS_NODE_MAX) {
+		acpi_os_printf("[%4.4s]: Unknown object type %X\n",
+			       node->name.ascii, node->type);
+	} else {
+		info->types[node->type]++;
+	}
+
+	return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_walk_for_specific_objects
+ *
+ * PARAMETERS:  Callback from walk_namespace
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Display short info about objects in the namespace
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_db_walk_for_specific_objects(acpi_handle obj_handle,
+				  u32 nesting_level,
+				  void *context, void **return_value)
+{
+	struct acpi_walk_info *info = (struct acpi_walk_info *)context;
+	struct acpi_buffer buffer;
+	acpi_status status;
+
+	info->count++;
+
+	/* Get and display the full pathname to this object */
+
+	buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
+	status = acpi_ns_handle_to_pathname(obj_handle, &buffer, TRUE);
+	if (ACPI_FAILURE(status)) {
+		acpi_os_printf("Could Not get pathname for object %p\n",
+			       obj_handle);
+		return (AE_OK);
+	}
+
+	acpi_os_printf("%32s", (char *)buffer.pointer);
+	ACPI_FREE(buffer.pointer);
+
+	/* Dump short info about the object */
+
+	(void)acpi_ns_dump_one_object(obj_handle, nesting_level, info, NULL);
+	return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_display_objects
+ *
+ * PARAMETERS:  obj_type_arg        - Type of object to display
+ *              display_count_arg   - Max depth to display
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Display objects in the namespace of the requested type
+ *
+ ******************************************************************************/
+
+acpi_status acpi_db_display_objects(char *obj_type_arg, char *display_count_arg)
+{
+	struct acpi_walk_info info;
+	acpi_object_type type;
+	struct acpi_object_info *object_info;
+	u32 i;
+	u32 total_objects = 0;
+
+	/* No argument means display summary/count of all object types */
+
+	if (!obj_type_arg) {
+		object_info =
+		    ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_object_info));
+
+		/* Walk the namespace from the root */
+
+		(void)acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
+					  ACPI_UINT32_MAX,
+					  acpi_db_walk_for_object_counts, NULL,
+					  (void *)object_info, NULL);
+
+		acpi_os_printf("\nSummary of namespace objects:\n\n");
+
+		for (i = 0; i < ACPI_TOTAL_TYPES; i++) {
+			acpi_os_printf("%8u %s\n", object_info->types[i],
+				       acpi_ut_get_type_name(i));
+
+			total_objects += object_info->types[i];
+		}
+
+		acpi_os_printf("\n%8u Total namespace objects\n\n",
+			       total_objects);
+
+		ACPI_FREE(object_info);
+		return (AE_OK);
+	}
+
+	/* Get the object type */
+
+	type = acpi_db_match_argument(obj_type_arg, acpi_db_object_types);
+	if (type == ACPI_TYPE_NOT_FOUND) {
+		acpi_os_printf("Invalid or unsupported argument\n");
+		return (AE_OK);
+	}
+
+	acpi_db_set_output_destination(ACPI_DB_DUPLICATE_OUTPUT);
+	acpi_os_printf
+	    ("Objects of type [%s] defined in the current ACPI Namespace:\n",
+	     acpi_ut_get_type_name(type));
+
+	acpi_db_set_output_destination(ACPI_DB_REDIRECTABLE_OUTPUT);
+
+	info.count = 0;
+	info.owner_id = ACPI_OWNER_ID_MAX;
+	info.debug_level = ACPI_UINT32_MAX;
+	info.display_type = ACPI_DISPLAY_SUMMARY | ACPI_DISPLAY_SHORT;
+
+	/* Walk the namespace from the root */
+
+	(void)acpi_walk_namespace(type, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX,
+				  acpi_db_walk_for_specific_objects, NULL,
+				  (void *)&info, NULL);
+
+	acpi_os_printf
+	    ("\nFound %u objects of type [%s] in the current ACPI Namespace\n",
+	     info.count, acpi_ut_get_type_name(type));
+
+	acpi_db_set_output_destination(ACPI_DB_CONSOLE_OUTPUT);
+	return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_integrity_walk
+ *
+ * PARAMETERS:  Callback from walk_namespace
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Examine one NS node for valid values.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_db_integrity_walk(acpi_handle obj_handle,
+		       u32 nesting_level, void *context, void **return_value)
+{
+	struct acpi_integrity_info *info =
+	    (struct acpi_integrity_info *)context;
+	struct acpi_namespace_node *node =
+	    (struct acpi_namespace_node *)obj_handle;
+	union acpi_operand_object *object;
+	u8 alias = TRUE;
+
+	info->nodes++;
+
+	/* Verify the NS node, and dereference aliases */
+
+	while (alias) {
+		if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) {
+			acpi_os_printf
+			    ("Invalid Descriptor Type for Node %p [%s] - "
+			     "is %2.2X should be %2.2X\n", node,
+			     acpi_ut_get_descriptor_name(node),
+			     ACPI_GET_DESCRIPTOR_TYPE(node),
+			     ACPI_DESC_TYPE_NAMED);
+			return (AE_OK);
+		}
+
+		if ((node->type == ACPI_TYPE_LOCAL_ALIAS) ||
+		    (node->type == ACPI_TYPE_LOCAL_METHOD_ALIAS)) {
+			node = (struct acpi_namespace_node *)node->object;
+		} else {
+			alias = FALSE;
+		}
+	}
+
+	if (node->type > ACPI_TYPE_LOCAL_MAX) {
+		acpi_os_printf("Invalid Object Type for Node %p, Type = %X\n",
+			       node, node->type);
+		return (AE_OK);
+	}
+
+	if (!acpi_ut_valid_acpi_name(node->name.ascii)) {
+		acpi_os_printf("Invalid AcpiName for Node %p\n", node);
+		return (AE_OK);
+	}
+
+	object = acpi_ns_get_attached_object(node);
+	if (object) {
+		info->objects++;
+		if (ACPI_GET_DESCRIPTOR_TYPE(object) != ACPI_DESC_TYPE_OPERAND) {
+			acpi_os_printf
+			    ("Invalid Descriptor Type for Object %p [%s]\n",
+			     object, acpi_ut_get_descriptor_name(object));
+		}
+	}
+
+	return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_check_integrity
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Check entire namespace for data structure integrity
+ *
+ ******************************************************************************/
+
+void acpi_db_check_integrity(void)
+{
+	struct acpi_integrity_info info = { 0, 0 };
+
+	/* Search all nodes in namespace */
+
+	(void)acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
+				  ACPI_UINT32_MAX, acpi_db_integrity_walk, NULL,
+				  (void *)&info, NULL);
+
+	acpi_os_printf("Verified %u namespace nodes with %u Objects\n",
+		       info.nodes, info.objects);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_walk_for_references
+ *
+ * PARAMETERS:  Callback from walk_namespace
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Check if this namespace object refers to the target object
+ *              that is passed in as the context value.
+ *
+ * Note: Currently doesn't check subobjects within the Node's object
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_db_walk_for_references(acpi_handle obj_handle,
+			    u32 nesting_level,
+			    void *context, void **return_value)
+{
+	union acpi_operand_object *obj_desc =
+	    (union acpi_operand_object *)context;
+	struct acpi_namespace_node *node =
+	    (struct acpi_namespace_node *)obj_handle;
+
+	/* Check for match against the namespace node itself */
+
+	if (node == (void *)obj_desc) {
+		acpi_os_printf("Object is a Node [%4.4s]\n",
+			       acpi_ut_get_node_name(node));
+	}
+
+	/* Check for match against the object attached to the node */
+
+	if (acpi_ns_get_attached_object(node) == obj_desc) {
+		acpi_os_printf("Reference at Node->Object %p [%4.4s]\n",
+			       node, acpi_ut_get_node_name(node));
+	}
+
+	return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_find_references
+ *
+ * PARAMETERS:  object_arg      - String with hex value of the object
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Search namespace for all references to the input object
+ *
+ ******************************************************************************/
+
+void acpi_db_find_references(char *object_arg)
+{
+	union acpi_operand_object *obj_desc;
+	acpi_size address;
+
+	/* Convert string to object pointer */
+
+	address = strtoul(object_arg, NULL, 16);
+	obj_desc = ACPI_TO_POINTER(address);
+
+	/* Search all nodes in namespace */
+
+	(void)acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
+				  ACPI_UINT32_MAX, acpi_db_walk_for_references,
+				  NULL, (void *)obj_desc, NULL);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_bus_walk
+ *
+ * PARAMETERS:  Callback from walk_namespace
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Display info about device objects that have a corresponding
+ *              _PRT method.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_db_bus_walk(acpi_handle obj_handle,
+		 u32 nesting_level, void *context, void **return_value)
+{
+	struct acpi_namespace_node *node =
+	    (struct acpi_namespace_node *)obj_handle;
+	acpi_status status;
+	struct acpi_buffer buffer;
+	struct acpi_namespace_node *temp_node;
+	struct acpi_device_info *info;
+	u32 i;
+
+	if ((node->type != ACPI_TYPE_DEVICE) &&
+	    (node->type != ACPI_TYPE_PROCESSOR)) {
+		return (AE_OK);
+	}
+
+	/* Exit if there is no _PRT under this device */
+
+	status = acpi_get_handle(node, METHOD_NAME__PRT,
+				 ACPI_CAST_PTR(acpi_handle, &temp_node));
+	if (ACPI_FAILURE(status)) {
+		return (AE_OK);
+	}
+
+	/* Get the full path to this device object */
+
+	buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
+	status = acpi_ns_handle_to_pathname(obj_handle, &buffer, TRUE);
+	if (ACPI_FAILURE(status)) {
+		acpi_os_printf("Could Not get pathname for object %p\n",
+			       obj_handle);
+		return (AE_OK);
+	}
+
+	status = acpi_get_object_info(obj_handle, &info);
+	if (ACPI_FAILURE(status)) {
+		return (AE_OK);
+	}
+
+	/* Display the full path */
+
+	acpi_os_printf("%-32s Type %X", (char *)buffer.pointer, node->type);
+	ACPI_FREE(buffer.pointer);
+
+	if (info->flags & ACPI_PCI_ROOT_BRIDGE) {
+		acpi_os_printf(" - Is PCI Root Bridge");
+	}
+	acpi_os_printf("\n");
+
+	/* _PRT info */
+
+	acpi_os_printf("_PRT: %p\n", temp_node);
+
+	/* Dump _ADR, _HID, _UID, _CID */
+
+	if (info->valid & ACPI_VALID_ADR) {
+		acpi_os_printf("_ADR: %8.8X%8.8X\n",
+			       ACPI_FORMAT_UINT64(info->address));
+	} else {
+		acpi_os_printf("_ADR: <Not Present>\n");
+	}
+
+	if (info->valid & ACPI_VALID_HID) {
+		acpi_os_printf("_HID: %s\n", info->hardware_id.string);
+	} else {
+		acpi_os_printf("_HID: <Not Present>\n");
+	}
+
+	if (info->valid & ACPI_VALID_UID) {
+		acpi_os_printf("_UID: %s\n", info->unique_id.string);
+	} else {
+		acpi_os_printf("_UID: <Not Present>\n");
+	}
+
+	if (info->valid & ACPI_VALID_CID) {
+		for (i = 0; i < info->compatible_id_list.count; i++) {
+			acpi_os_printf("_CID: %s\n",
+				       info->compatible_id_list.ids[i].string);
+		}
+	} else {
+		acpi_os_printf("_CID: <Not Present>\n");
+	}
+
+	ACPI_FREE(info);
+	return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_get_bus_info
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Display info about system busses.
+ *
+ ******************************************************************************/
+
+void acpi_db_get_bus_info(void)
+{
+	/* Search all nodes in namespace */
+
+	(void)acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
+				  ACPI_UINT32_MAX, acpi_db_bus_walk, NULL, NULL,
+				  NULL);
+}
diff --git a/drivers/acpi/acpica/dbobject.c b/drivers/acpi/acpica/dbobject.c
new file mode 100644
index 0000000..116f6db8
--- /dev/null
+++ b/drivers/acpi/acpica/dbobject.c
@@ -0,0 +1,533 @@
+/*******************************************************************************
+ *
+ * Module Name: dbobject - ACPI object decode and display
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2015, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acnamesp.h"
+#include "acdebug.h"
+
+#define _COMPONENT          ACPI_CA_DEBUGGER
+ACPI_MODULE_NAME("dbobject")
+
+/* Local prototypes */
+static void acpi_db_decode_node(struct acpi_namespace_node *node);
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_dump_method_info
+ *
+ * PARAMETERS:  status          - Method execution status
+ *              walk_state      - Current state of the parse tree walk
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Called when a method has been aborted because of an error.
+ *              Dumps the method execution stack, and the method locals/args,
+ *              and disassembles the AML opcode that failed.
+ *
+ ******************************************************************************/
+
+void
+acpi_db_dump_method_info(acpi_status status, struct acpi_walk_state *walk_state)
+{
+	struct acpi_thread_state *thread;
+
+	/* Ignore control codes, they are not errors */
+
+	if ((status & AE_CODE_MASK) == AE_CODE_CONTROL) {
+		return;
+	}
+
+	/* We may be executing a deferred opcode */
+
+	if (walk_state->deferred_node) {
+		acpi_os_printf("Executing subtree for Buffer/Package/Region\n");
+		return;
+	}
+
+	/*
+	 * If there is no Thread, we are not actually executing a method.
+	 * This can happen when the iASL compiler calls the interpreter
+	 * to perform constant folding.
+	 */
+	thread = walk_state->thread;
+	if (!thread) {
+		return;
+	}
+
+	/* Display the method locals and arguments */
+
+	acpi_os_printf("\n");
+	acpi_db_decode_locals(walk_state);
+	acpi_os_printf("\n");
+	acpi_db_decode_arguments(walk_state);
+	acpi_os_printf("\n");
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_decode_internal_object
+ *
+ * PARAMETERS:  obj_desc        - Object to be displayed
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Short display of an internal object. Numbers/Strings/Buffers.
+ *
+ ******************************************************************************/
+
+void acpi_db_decode_internal_object(union acpi_operand_object *obj_desc)
+{
+	u32 i;
+
+	if (!obj_desc) {
+		acpi_os_printf(" Uninitialized");
+		return;
+	}
+
+	if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) != ACPI_DESC_TYPE_OPERAND) {
+		acpi_os_printf(" %p [%s]", obj_desc,
+			       acpi_ut_get_descriptor_name(obj_desc));
+		return;
+	}
+
+	acpi_os_printf(" %s", acpi_ut_get_object_type_name(obj_desc));
+
+	switch (obj_desc->common.type) {
+	case ACPI_TYPE_INTEGER:
+
+		acpi_os_printf(" %8.8X%8.8X",
+			       ACPI_FORMAT_UINT64(obj_desc->integer.value));
+		break;
+
+	case ACPI_TYPE_STRING:
+
+		acpi_os_printf("(%u) \"%.24s",
+			       obj_desc->string.length,
+			       obj_desc->string.pointer);
+
+		if (obj_desc->string.length > 24) {
+			acpi_os_printf("...");
+		} else {
+			acpi_os_printf("\"");
+		}
+		break;
+
+	case ACPI_TYPE_BUFFER:
+
+		acpi_os_printf("(%u)", obj_desc->buffer.length);
+		for (i = 0; (i < 8) && (i < obj_desc->buffer.length); i++) {
+			acpi_os_printf(" %2.2X", obj_desc->buffer.pointer[i]);
+		}
+		break;
+
+	default:
+
+		acpi_os_printf(" %p", obj_desc);
+		break;
+	}
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_decode_node
+ *
+ * PARAMETERS:  node        - Object to be displayed
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Short display of a namespace node
+ *
+ ******************************************************************************/
+
+static void acpi_db_decode_node(struct acpi_namespace_node *node)
+{
+
+	acpi_os_printf("<Node>          Name %4.4s",
+		       acpi_ut_get_node_name(node));
+
+	if (node->flags & ANOBJ_METHOD_ARG) {
+		acpi_os_printf(" [Method Arg]");
+	}
+	if (node->flags & ANOBJ_METHOD_LOCAL) {
+		acpi_os_printf(" [Method Local]");
+	}
+
+	switch (node->type) {
+
+		/* These types have no attached object */
+
+	case ACPI_TYPE_DEVICE:
+
+		acpi_os_printf(" Device");
+		break;
+
+	case ACPI_TYPE_THERMAL:
+
+		acpi_os_printf(" Thermal Zone");
+		break;
+
+	default:
+
+		acpi_db_decode_internal_object(acpi_ns_get_attached_object
+					       (node));
+		break;
+	}
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_display_internal_object
+ *
+ * PARAMETERS:  obj_desc        - Object to be displayed
+ *              walk_state      - Current walk state
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Short display of an internal object
+ *
+ ******************************************************************************/
+
+void
+acpi_db_display_internal_object(union acpi_operand_object *obj_desc,
+				struct acpi_walk_state *walk_state)
+{
+	u8 type;
+
+	acpi_os_printf("%p ", obj_desc);
+
+	if (!obj_desc) {
+		acpi_os_printf("<Null Object>\n");
+		return;
+	}
+
+	/* Decode the object type */
+
+	switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) {
+	case ACPI_DESC_TYPE_PARSER:
+
+		acpi_os_printf("<Parser> ");
+		break;
+
+	case ACPI_DESC_TYPE_NAMED:
+
+		acpi_db_decode_node((struct acpi_namespace_node *)obj_desc);
+		break;
+
+	case ACPI_DESC_TYPE_OPERAND:
+
+		type = obj_desc->common.type;
+		if (type > ACPI_TYPE_LOCAL_MAX) {
+			acpi_os_printf(" Type %X [Invalid Type]", (u32)type);
+			return;
+		}
+
+		/* Decode the ACPI object type */
+
+		switch (obj_desc->common.type) {
+		case ACPI_TYPE_LOCAL_REFERENCE:
+
+			acpi_os_printf("[%s] ",
+				       acpi_ut_get_reference_name(obj_desc));
+
+			/* Decode the refererence */
+
+			switch (obj_desc->reference.class) {
+			case ACPI_REFCLASS_LOCAL:
+
+				acpi_os_printf("%X ",
+					       obj_desc->reference.value);
+				if (walk_state) {
+					obj_desc = walk_state->local_variables
+					    [obj_desc->reference.value].object;
+					acpi_os_printf("%p", obj_desc);
+					acpi_db_decode_internal_object
+					    (obj_desc);
+				}
+				break;
+
+			case ACPI_REFCLASS_ARG:
+
+				acpi_os_printf("%X ",
+					       obj_desc->reference.value);
+				if (walk_state) {
+					obj_desc = walk_state->arguments
+					    [obj_desc->reference.value].object;
+					acpi_os_printf("%p", obj_desc);
+					acpi_db_decode_internal_object
+					    (obj_desc);
+				}
+				break;
+
+			case ACPI_REFCLASS_INDEX:
+
+				switch (obj_desc->reference.target_type) {
+				case ACPI_TYPE_BUFFER_FIELD:
+
+					acpi_os_printf("%p",
+						       obj_desc->reference.
+						       object);
+					acpi_db_decode_internal_object
+					    (obj_desc->reference.object);
+					break;
+
+				case ACPI_TYPE_PACKAGE:
+
+					acpi_os_printf("%p",
+						       obj_desc->reference.
+						       where);
+					if (!obj_desc->reference.where) {
+						acpi_os_printf
+						    (" Uninitialized WHERE pointer");
+					} else {
+						acpi_db_decode_internal_object(*
+									       (obj_desc->
+										reference.
+										where));
+					}
+					break;
+
+				default:
+
+					acpi_os_printf
+					    ("Unknown index target type");
+					break;
+				}
+				break;
+
+			case ACPI_REFCLASS_REFOF:
+
+				if (!obj_desc->reference.object) {
+					acpi_os_printf
+					    ("Uninitialized reference subobject pointer");
+					break;
+				}
+
+				/* Reference can be to a Node or an Operand object */
+
+				switch (ACPI_GET_DESCRIPTOR_TYPE
+					(obj_desc->reference.object)) {
+				case ACPI_DESC_TYPE_NAMED:
+
+					acpi_db_decode_node(obj_desc->reference.
+							    object);
+					break;
+
+				case ACPI_DESC_TYPE_OPERAND:
+
+					acpi_db_decode_internal_object
+					    (obj_desc->reference.object);
+					break;
+
+				default:
+					break;
+				}
+				break;
+
+			case ACPI_REFCLASS_NAME:
+
+				acpi_db_decode_node(obj_desc->reference.node);
+				break;
+
+			case ACPI_REFCLASS_DEBUG:
+			case ACPI_REFCLASS_TABLE:
+
+				acpi_os_printf("\n");
+				break;
+
+			default:	/* Unknown reference class */
+
+				acpi_os_printf("%2.2X\n",
+					       obj_desc->reference.class);
+				break;
+			}
+			break;
+
+		default:
+
+			acpi_os_printf("<Obj>          ");
+			acpi_db_decode_internal_object(obj_desc);
+			break;
+		}
+		break;
+
+	default:
+
+		acpi_os_printf("<Not a valid ACPI Object Descriptor> [%s]",
+			       acpi_ut_get_descriptor_name(obj_desc));
+		break;
+	}
+
+	acpi_os_printf("\n");
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_decode_locals
+ *
+ * PARAMETERS:  walk_state      - State for current method
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Display all locals for the currently running control method
+ *
+ ******************************************************************************/
+
+void acpi_db_decode_locals(struct acpi_walk_state *walk_state)
+{
+	u32 i;
+	union acpi_operand_object *obj_desc;
+	struct acpi_namespace_node *node;
+	u8 display_locals = FALSE;
+
+	obj_desc = walk_state->method_desc;
+	node = walk_state->method_node;
+
+	if (!node) {
+		acpi_os_printf
+		    ("No method node (Executing subtree for buffer or opregion)\n");
+		return;
+	}
+
+	if (node->type != ACPI_TYPE_METHOD) {
+		acpi_os_printf("Executing subtree for Buffer/Package/Region\n");
+		return;
+	}
+
+	/* Are any locals actually set? */
+
+	for (i = 0; i < ACPI_METHOD_NUM_LOCALS; i++) {
+		obj_desc = walk_state->local_variables[i].object;
+		if (obj_desc) {
+			display_locals = TRUE;
+			break;
+		}
+	}
+
+	/* If any are set, only display the ones that are set */
+
+	if (display_locals) {
+		acpi_os_printf
+		    ("\nInitialized Local Variables for method [%4.4s]:\n",
+		     acpi_ut_get_node_name(node));
+
+		for (i = 0; i < ACPI_METHOD_NUM_LOCALS; i++) {
+			obj_desc = walk_state->local_variables[i].object;
+			if (obj_desc) {
+				acpi_os_printf("  Local%X: ", i);
+				acpi_db_display_internal_object(obj_desc,
+								walk_state);
+			}
+		}
+	} else {
+		acpi_os_printf
+		    ("No Local Variables are initialized for method [%4.4s]\n",
+		     acpi_ut_get_node_name(node));
+	}
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_decode_arguments
+ *
+ * PARAMETERS:  walk_state      - State for current method
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Display all arguments for the currently running control method
+ *
+ ******************************************************************************/
+
+void acpi_db_decode_arguments(struct acpi_walk_state *walk_state)
+{
+	u32 i;
+	union acpi_operand_object *obj_desc;
+	struct acpi_namespace_node *node;
+	u8 display_args = FALSE;
+
+	node = walk_state->method_node;
+	obj_desc = walk_state->method_desc;
+
+	if (!node) {
+		acpi_os_printf
+		    ("No method node (Executing subtree for buffer or opregion)\n");
+		return;
+	}
+
+	if (node->type != ACPI_TYPE_METHOD) {
+		acpi_os_printf("Executing subtree for Buffer/Package/Region\n");
+		return;
+	}
+
+	/* Are any arguments actually set? */
+
+	for (i = 0; i < ACPI_METHOD_NUM_ARGS; i++) {
+		obj_desc = walk_state->arguments[i].object;
+		if (obj_desc) {
+			display_args = TRUE;
+			break;
+		}
+	}
+
+	/* If any are set, only display the ones that are set */
+
+	if (display_args) {
+		acpi_os_printf("Initialized Arguments for Method [%4.4s]:  "
+			       "(%X arguments defined for method invocation)\n",
+			       acpi_ut_get_node_name(node),
+			       obj_desc->method.param_count);
+
+		for (i = 0; i < ACPI_METHOD_NUM_ARGS; i++) {
+			obj_desc = walk_state->arguments[i].object;
+			if (obj_desc) {
+				acpi_os_printf("  Arg%u:   ", i);
+				acpi_db_display_internal_object(obj_desc,
+								walk_state);
+			}
+		}
+	} else {
+		acpi_os_printf
+		    ("No Arguments are initialized for method [%4.4s]\n",
+		     acpi_ut_get_node_name(node));
+	}
+}
diff --git a/drivers/acpi/acpica/dbstats.c b/drivers/acpi/acpica/dbstats.c
new file mode 100644
index 0000000..4ba0a20
--- /dev/null
+++ b/drivers/acpi/acpica/dbstats.c
@@ -0,0 +1,546 @@
+/*******************************************************************************
+ *
+ * Module Name: dbstats - Generation and display of ACPI table statistics
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2015, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acdebug.h"
+#include "acnamesp.h"
+
+#define _COMPONENT          ACPI_CA_DEBUGGER
+ACPI_MODULE_NAME("dbstats")
+
+/* Local prototypes */
+static void acpi_db_count_namespace_objects(void);
+
+static void acpi_db_enumerate_object(union acpi_operand_object *obj_desc);
+
+static acpi_status
+acpi_db_classify_one_object(acpi_handle obj_handle,
+			    u32 nesting_level,
+			    void *context, void **return_value);
+
+#if defined ACPI_DBG_TRACK_ALLOCATIONS || defined ACPI_USE_LOCAL_CACHE
+static void acpi_db_list_info(struct acpi_memory_list *list);
+#endif
+
+/*
+ * Statistics subcommands
+ */
+static struct acpi_db_argument_info acpi_db_stat_types[] = {
+	{"ALLOCATIONS"},
+	{"OBJECTS"},
+	{"MEMORY"},
+	{"MISC"},
+	{"TABLES"},
+	{"SIZES"},
+	{"STACK"},
+	{NULL}			/* Must be null terminated */
+};
+
+#define CMD_STAT_ALLOCATIONS     0
+#define CMD_STAT_OBJECTS         1
+#define CMD_STAT_MEMORY          2
+#define CMD_STAT_MISC            3
+#define CMD_STAT_TABLES          4
+#define CMD_STAT_SIZES           5
+#define CMD_STAT_STACK           6
+
+#if defined ACPI_DBG_TRACK_ALLOCATIONS || defined ACPI_USE_LOCAL_CACHE
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_list_info
+ *
+ * PARAMETERS:  list            - Memory list/cache to be displayed
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Display information about the input memory list or cache.
+ *
+ ******************************************************************************/
+
+static void acpi_db_list_info(struct acpi_memory_list *list)
+{
+#ifdef ACPI_DBG_TRACK_ALLOCATIONS
+	u32 outstanding;
+#endif
+
+	acpi_os_printf("\n%s\n", list->list_name);
+
+	/* max_depth > 0 indicates a cache object */
+
+	if (list->max_depth > 0) {
+		acpi_os_printf
+		    ("    Cache: [Depth    MaxD Avail  Size]                "
+		     "%8.2X %8.2X %8.2X %8.2X\n", list->current_depth,
+		     list->max_depth, list->max_depth - list->current_depth,
+		     (list->current_depth * list->object_size));
+	}
+#ifdef ACPI_DBG_TRACK_ALLOCATIONS
+	if (list->max_depth > 0) {
+		acpi_os_printf
+		    ("    Cache: [Requests Hits Misses ObjSize]             "
+		     "%8.2X %8.2X %8.2X %8.2X\n", list->requests, list->hits,
+		     list->requests - list->hits, list->object_size);
+	}
+
+	outstanding = acpi_db_get_cache_info(list);
+
+	if (list->object_size) {
+		acpi_os_printf
+		    ("    Mem:   [Alloc    Free Max    CurSize Outstanding] "
+		     "%8.2X %8.2X %8.2X %8.2X %8.2X\n", list->total_allocated,
+		     list->total_freed, list->max_occupied,
+		     outstanding * list->object_size, outstanding);
+	} else {
+		acpi_os_printf
+		    ("    Mem:   [Alloc Free Max CurSize Outstanding Total] "
+		     "%8.2X %8.2X %8.2X %8.2X %8.2X %8.2X\n",
+		     list->total_allocated, list->total_freed,
+		     list->max_occupied, list->current_total_size, outstanding,
+		     list->total_size);
+	}
+#endif
+}
+#endif
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_enumerate_object
+ *
+ * PARAMETERS:  obj_desc            - Object to be counted
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Add this object to the global counts, by object type.
+ *              Limited recursion handles subobjects and packages, and this
+ *              is probably acceptable within the AML debugger only.
+ *
+ ******************************************************************************/
+
+static void acpi_db_enumerate_object(union acpi_operand_object *obj_desc)
+{
+	u32 i;
+
+	if (!obj_desc) {
+		return;
+	}
+
+	/* Enumerate this object first */
+
+	acpi_gbl_num_objects++;
+
+	if (obj_desc->common.type > ACPI_TYPE_NS_NODE_MAX) {
+		acpi_gbl_obj_type_count_misc++;
+	} else {
+		acpi_gbl_obj_type_count[obj_desc->common.type]++;
+	}
+
+	/* Count the sub-objects */
+
+	switch (obj_desc->common.type) {
+	case ACPI_TYPE_PACKAGE:
+
+		for (i = 0; i < obj_desc->package.count; i++) {
+			acpi_db_enumerate_object(obj_desc->package.elements[i]);
+		}
+		break;
+
+	case ACPI_TYPE_DEVICE:
+
+		acpi_db_enumerate_object(obj_desc->device.notify_list[0]);
+		acpi_db_enumerate_object(obj_desc->device.notify_list[1]);
+		acpi_db_enumerate_object(obj_desc->device.handler);
+		break;
+
+	case ACPI_TYPE_BUFFER_FIELD:
+
+		if (acpi_ns_get_secondary_object(obj_desc)) {
+			acpi_gbl_obj_type_count[ACPI_TYPE_BUFFER_FIELD]++;
+		}
+		break;
+
+	case ACPI_TYPE_REGION:
+
+		acpi_gbl_obj_type_count[ACPI_TYPE_LOCAL_REGION_FIELD]++;
+		acpi_db_enumerate_object(obj_desc->region.handler);
+		break;
+
+	case ACPI_TYPE_POWER:
+
+		acpi_db_enumerate_object(obj_desc->power_resource.
+					 notify_list[0]);
+		acpi_db_enumerate_object(obj_desc->power_resource.
+					 notify_list[1]);
+		break;
+
+	case ACPI_TYPE_PROCESSOR:
+
+		acpi_db_enumerate_object(obj_desc->processor.notify_list[0]);
+		acpi_db_enumerate_object(obj_desc->processor.notify_list[1]);
+		acpi_db_enumerate_object(obj_desc->processor.handler);
+		break;
+
+	case ACPI_TYPE_THERMAL:
+
+		acpi_db_enumerate_object(obj_desc->thermal_zone.notify_list[0]);
+		acpi_db_enumerate_object(obj_desc->thermal_zone.notify_list[1]);
+		acpi_db_enumerate_object(obj_desc->thermal_zone.handler);
+		break;
+
+	default:
+
+		break;
+	}
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_classify_one_object
+ *
+ * PARAMETERS:  Callback for walk_namespace
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Enumerate both the object descriptor (including subobjects) and
+ *              the parent namespace node.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_db_classify_one_object(acpi_handle obj_handle,
+			    u32 nesting_level,
+			    void *context, void **return_value)
+{
+	struct acpi_namespace_node *node;
+	union acpi_operand_object *obj_desc;
+	u32 type;
+
+	acpi_gbl_num_nodes++;
+
+	node = (struct acpi_namespace_node *)obj_handle;
+	obj_desc = acpi_ns_get_attached_object(node);
+
+	acpi_db_enumerate_object(obj_desc);
+
+	type = node->type;
+	if (type > ACPI_TYPE_NS_NODE_MAX) {
+		acpi_gbl_node_type_count_misc++;
+	} else {
+		acpi_gbl_node_type_count[type]++;
+	}
+
+	return (AE_OK);
+
+#ifdef ACPI_FUTURE_IMPLEMENTATION
+
+	/* TBD: These need to be counted during the initial parsing phase */
+
+	if (acpi_ps_is_named_op(op->opcode)) {
+		num_nodes++;
+	}
+
+	if (is_method) {
+		num_method_elements++;
+	}
+
+	num_grammar_elements++;
+	op = acpi_ps_get_depth_next(root, op);
+
+	size_of_parse_tree = (num_grammar_elements - num_method_elements) *
+	    (u32)sizeof(union acpi_parse_object);
+	size_of_method_trees =
+	    num_method_elements * (u32)sizeof(union acpi_parse_object);
+	size_of_node_entries =
+	    num_nodes * (u32)sizeof(struct acpi_namespace_node);
+	size_of_acpi_objects =
+	    num_nodes * (u32)sizeof(union acpi_operand_object);
+#endif
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_count_namespace_objects
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Count and classify the entire namespace, including all
+ *              namespace nodes and attached objects.
+ *
+ ******************************************************************************/
+
+static void acpi_db_count_namespace_objects(void)
+{
+	u32 i;
+
+	acpi_gbl_num_nodes = 0;
+	acpi_gbl_num_objects = 0;
+
+	acpi_gbl_obj_type_count_misc = 0;
+	for (i = 0; i < (ACPI_TYPE_NS_NODE_MAX - 1); i++) {
+		acpi_gbl_obj_type_count[i] = 0;
+		acpi_gbl_node_type_count[i] = 0;
+	}
+
+	(void)acpi_ns_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
+				     ACPI_UINT32_MAX, FALSE,
+				     acpi_db_classify_one_object, NULL, NULL,
+				     NULL);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_display_statistics
+ *
+ * PARAMETERS:  type_arg        - Subcommand
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Display various statistics
+ *
+ ******************************************************************************/
+
+acpi_status acpi_db_display_statistics(char *type_arg)
+{
+	u32 i;
+	u32 temp;
+
+	acpi_ut_strupr(type_arg);
+	temp = acpi_db_match_argument(type_arg, acpi_db_stat_types);
+	if (temp == ACPI_TYPE_NOT_FOUND) {
+		acpi_os_printf("Invalid or unsupported argument\n");
+		return (AE_OK);
+	}
+
+	switch (temp) {
+	case CMD_STAT_ALLOCATIONS:
+
+#ifdef ACPI_DBG_TRACK_ALLOCATIONS
+		acpi_ut_dump_allocation_info();
+#endif
+		break;
+
+	case CMD_STAT_TABLES:
+
+		acpi_os_printf("ACPI Table Information (not implemented):\n\n");
+		break;
+
+	case CMD_STAT_OBJECTS:
+
+		acpi_db_count_namespace_objects();
+
+		acpi_os_printf
+		    ("\nObjects defined in the current namespace:\n\n");
+
+		acpi_os_printf("%16.16s %10.10s %10.10s\n",
+			       "ACPI_TYPE", "NODES", "OBJECTS");
+
+		for (i = 0; i < ACPI_TYPE_NS_NODE_MAX; i++) {
+			acpi_os_printf("%16.16s % 10ld% 10ld\n",
+				       acpi_ut_get_type_name(i),
+				       acpi_gbl_node_type_count[i],
+				       acpi_gbl_obj_type_count[i]);
+		}
+		acpi_os_printf("%16.16s % 10ld% 10ld\n", "Misc/Unknown",
+			       acpi_gbl_node_type_count_misc,
+			       acpi_gbl_obj_type_count_misc);
+
+		acpi_os_printf("%16.16s % 10ld% 10ld\n", "TOTALS:",
+			       acpi_gbl_num_nodes, acpi_gbl_num_objects);
+		break;
+
+	case CMD_STAT_MEMORY:
+
+#ifdef ACPI_DBG_TRACK_ALLOCATIONS
+		acpi_os_printf
+		    ("\n----Object Statistics (all in hex)---------\n");
+
+		acpi_db_list_info(acpi_gbl_global_list);
+		acpi_db_list_info(acpi_gbl_ns_node_list);
+#endif
+
+#ifdef ACPI_USE_LOCAL_CACHE
+		acpi_os_printf
+		    ("\n----Cache Statistics (all in hex)---------\n");
+		acpi_db_list_info(acpi_gbl_operand_cache);
+		acpi_db_list_info(acpi_gbl_ps_node_cache);
+		acpi_db_list_info(acpi_gbl_ps_node_ext_cache);
+		acpi_db_list_info(acpi_gbl_state_cache);
+#endif
+
+		break;
+
+	case CMD_STAT_MISC:
+
+		acpi_os_printf("\nMiscellaneous Statistics:\n\n");
+		acpi_os_printf("Calls to AcpiPsFind:.. ........% 7ld\n",
+			       acpi_gbl_ps_find_count);
+		acpi_os_printf("Calls to AcpiNsLookup:..........% 7ld\n",
+			       acpi_gbl_ns_lookup_count);
+
+		acpi_os_printf("\n");
+
+		acpi_os_printf("Mutex usage:\n\n");
+		for (i = 0; i < ACPI_NUM_MUTEX; i++) {
+			acpi_os_printf("%-28s:     % 7ld\n",
+				       acpi_ut_get_mutex_name(i),
+				       acpi_gbl_mutex_info[i].use_count);
+		}
+		break;
+
+	case CMD_STAT_SIZES:
+
+		acpi_os_printf("\nInternal object sizes:\n\n");
+
+		acpi_os_printf("Common         %3d\n",
+			       sizeof(struct acpi_object_common));
+		acpi_os_printf("Number         %3d\n",
+			       sizeof(struct acpi_object_integer));
+		acpi_os_printf("String         %3d\n",
+			       sizeof(struct acpi_object_string));
+		acpi_os_printf("Buffer         %3d\n",
+			       sizeof(struct acpi_object_buffer));
+		acpi_os_printf("Package        %3d\n",
+			       sizeof(struct acpi_object_package));
+		acpi_os_printf("BufferField    %3d\n",
+			       sizeof(struct acpi_object_buffer_field));
+		acpi_os_printf("Device         %3d\n",
+			       sizeof(struct acpi_object_device));
+		acpi_os_printf("Event          %3d\n",
+			       sizeof(struct acpi_object_event));
+		acpi_os_printf("Method         %3d\n",
+			       sizeof(struct acpi_object_method));
+		acpi_os_printf("Mutex          %3d\n",
+			       sizeof(struct acpi_object_mutex));
+		acpi_os_printf("Region         %3d\n",
+			       sizeof(struct acpi_object_region));
+		acpi_os_printf("PowerResource  %3d\n",
+			       sizeof(struct acpi_object_power_resource));
+		acpi_os_printf("Processor      %3d\n",
+			       sizeof(struct acpi_object_processor));
+		acpi_os_printf("ThermalZone    %3d\n",
+			       sizeof(struct acpi_object_thermal_zone));
+		acpi_os_printf("RegionField    %3d\n",
+			       sizeof(struct acpi_object_region_field));
+		acpi_os_printf("BankField      %3d\n",
+			       sizeof(struct acpi_object_bank_field));
+		acpi_os_printf("IndexField     %3d\n",
+			       sizeof(struct acpi_object_index_field));
+		acpi_os_printf("Reference      %3d\n",
+			       sizeof(struct acpi_object_reference));
+		acpi_os_printf("Notify         %3d\n",
+			       sizeof(struct acpi_object_notify_handler));
+		acpi_os_printf("AddressSpace   %3d\n",
+			       sizeof(struct acpi_object_addr_handler));
+		acpi_os_printf("Extra          %3d\n",
+			       sizeof(struct acpi_object_extra));
+		acpi_os_printf("Data           %3d\n",
+			       sizeof(struct acpi_object_data));
+
+		acpi_os_printf("\n");
+
+		acpi_os_printf("ParseObject    %3d\n",
+			       sizeof(struct acpi_parse_obj_common));
+		acpi_os_printf("ParseObjectNamed %3d\n",
+			       sizeof(struct acpi_parse_obj_named));
+		acpi_os_printf("ParseObjectAsl %3d\n",
+			       sizeof(struct acpi_parse_obj_asl));
+		acpi_os_printf("OperandObject  %3d\n",
+			       sizeof(union acpi_operand_object));
+		acpi_os_printf("NamespaceNode  %3d\n",
+			       sizeof(struct acpi_namespace_node));
+		acpi_os_printf("AcpiObject     %3d\n",
+			       sizeof(union acpi_object));
+
+		acpi_os_printf("\n");
+
+		acpi_os_printf("Generic State  %3d\n",
+			       sizeof(union acpi_generic_state));
+		acpi_os_printf("Common State   %3d\n",
+			       sizeof(struct acpi_common_state));
+		acpi_os_printf("Control State  %3d\n",
+			       sizeof(struct acpi_control_state));
+		acpi_os_printf("Update State   %3d\n",
+			       sizeof(struct acpi_update_state));
+		acpi_os_printf("Scope State    %3d\n",
+			       sizeof(struct acpi_scope_state));
+		acpi_os_printf("Parse Scope    %3d\n",
+			       sizeof(struct acpi_pscope_state));
+		acpi_os_printf("Package State  %3d\n",
+			       sizeof(struct acpi_pkg_state));
+		acpi_os_printf("Thread State   %3d\n",
+			       sizeof(struct acpi_thread_state));
+		acpi_os_printf("Result Values  %3d\n",
+			       sizeof(struct acpi_result_values));
+		acpi_os_printf("Notify Info    %3d\n",
+			       sizeof(struct acpi_notify_info));
+		break;
+
+	case CMD_STAT_STACK:
+#if defined(ACPI_DEBUG_OUTPUT)
+
+		temp =
+		    (u32)ACPI_PTR_DIFF(acpi_gbl_entry_stack_pointer,
+				       acpi_gbl_lowest_stack_pointer);
+
+		acpi_os_printf("\nSubsystem Stack Usage:\n\n");
+		acpi_os_printf("Entry Stack Pointer        %p\n",
+			       acpi_gbl_entry_stack_pointer);
+		acpi_os_printf("Lowest Stack Pointer       %p\n",
+			       acpi_gbl_lowest_stack_pointer);
+		acpi_os_printf("Stack Use                  %X (%u)\n", temp,
+			       temp);
+		acpi_os_printf("Deepest Procedure Nesting  %u\n",
+			       acpi_gbl_deepest_nesting);
+#endif
+		break;
+
+	default:
+
+		break;
+	}
+
+	acpi_os_printf("\n");
+	return (AE_OK);
+}
diff --git a/drivers/acpi/acpica/dbtest.c b/drivers/acpi/acpica/dbtest.c
new file mode 100644
index 0000000..10ea8bf
--- /dev/null
+++ b/drivers/acpi/acpica/dbtest.c
@@ -0,0 +1,1057 @@
+/*******************************************************************************
+ *
+ * Module Name: dbtest - Various debug-related tests
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2015, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acdebug.h"
+#include "acnamesp.h"
+#include "acpredef.h"
+
+#define _COMPONENT          ACPI_CA_DEBUGGER
+ACPI_MODULE_NAME("dbtest")
+
+/* Local prototypes */
+static void acpi_db_test_all_objects(void);
+
+static acpi_status
+acpi_db_test_one_object(acpi_handle obj_handle,
+			u32 nesting_level, void *context, void **return_value);
+
+static acpi_status
+acpi_db_test_integer_type(struct acpi_namespace_node *node, u32 bit_length);
+
+static acpi_status
+acpi_db_test_buffer_type(struct acpi_namespace_node *node, u32 bit_length);
+
+static acpi_status
+acpi_db_test_string_type(struct acpi_namespace_node *node, u32 byte_length);
+
+static acpi_status
+acpi_db_read_from_object(struct acpi_namespace_node *node,
+			 acpi_object_type expected_type,
+			 union acpi_object **value);
+
+static acpi_status
+acpi_db_write_to_object(struct acpi_namespace_node *node,
+			union acpi_object *value);
+
+static void acpi_db_evaluate_all_predefined_names(char *count_arg);
+
+static acpi_status
+acpi_db_evaluate_one_predefined_name(acpi_handle obj_handle,
+				     u32 nesting_level,
+				     void *context, void **return_value);
+
+/*
+ * Test subcommands
+ */
+static struct acpi_db_argument_info acpi_db_test_types[] = {
+	{"OBJECTS"},
+	{"PREDEFINED"},
+	{NULL}			/* Must be null terminated */
+};
+
+#define CMD_TEST_OBJECTS        0
+#define CMD_TEST_PREDEFINED     1
+
+#define BUFFER_FILL_VALUE       0xFF
+
+/*
+ * Support for the special debugger read/write control methods.
+ * These methods are installed into the current namespace and are
+ * used to read and write the various namespace objects. The point
+ * is to force the AML interpreter do all of the work.
+ */
+#define ACPI_DB_READ_METHOD     "\\_T98"
+#define ACPI_DB_WRITE_METHOD    "\\_T99"
+
+static acpi_handle read_handle = NULL;
+static acpi_handle write_handle = NULL;
+
+/* ASL Definitions of the debugger read/write control methods */
+
+#if 0
+definition_block("ssdt.aml", "SSDT", 2, "Intel", "DEBUG", 0x00000001)
+{
+	method(_T98, 1, not_serialized) {	/* Read */
+		return (de_ref_of(arg0))
+	}
+}
+
+definition_block("ssdt2.aml", "SSDT", 2, "Intel", "DEBUG", 0x00000001)
+{
+	method(_T99, 2, not_serialized) {	/* Write */
+		store(arg1, arg0)
+	}
+}
+#endif
+
+static unsigned char read_method_code[] = {
+	0x53, 0x53, 0x44, 0x54, 0x2E, 0x00, 0x00, 0x00,	/* 00000000    "SSDT...." */
+	0x02, 0xC9, 0x49, 0x6E, 0x74, 0x65, 0x6C, 0x00,	/* 00000008    "..Intel." */
+	0x44, 0x45, 0x42, 0x55, 0x47, 0x00, 0x00, 0x00,	/* 00000010    "DEBUG..." */
+	0x01, 0x00, 0x00, 0x00, 0x49, 0x4E, 0x54, 0x4C,	/* 00000018    "....INTL" */
+	0x18, 0x12, 0x13, 0x20, 0x14, 0x09, 0x5F, 0x54,	/* 00000020    "... .._T" */
+	0x39, 0x38, 0x01, 0xA4, 0x83, 0x68	/* 00000028    "98...h"   */
+};
+
+static unsigned char write_method_code[] = {
+	0x53, 0x53, 0x44, 0x54, 0x2E, 0x00, 0x00, 0x00,	/* 00000000    "SSDT...." */
+	0x02, 0x15, 0x49, 0x6E, 0x74, 0x65, 0x6C, 0x00,	/* 00000008    "..Intel." */
+	0x44, 0x45, 0x42, 0x55, 0x47, 0x00, 0x00, 0x00,	/* 00000010    "DEBUG..." */
+	0x01, 0x00, 0x00, 0x00, 0x49, 0x4E, 0x54, 0x4C,	/* 00000018    "....INTL" */
+	0x18, 0x12, 0x13, 0x20, 0x14, 0x09, 0x5F, 0x54,	/* 00000020    "... .._T" */
+	0x39, 0x39, 0x02, 0x70, 0x69, 0x68	/* 00000028    "99.pih"   */
+};
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_execute_test
+ *
+ * PARAMETERS:  type_arg        - Subcommand
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Execute various debug tests.
+ *
+ * Note: Code is prepared for future expansion of the TEST command.
+ *
+ ******************************************************************************/
+
+void acpi_db_execute_test(char *type_arg)
+{
+	u32 temp;
+
+	acpi_ut_strupr(type_arg);
+	temp = acpi_db_match_argument(type_arg, acpi_db_test_types);
+	if (temp == ACPI_TYPE_NOT_FOUND) {
+		acpi_os_printf("Invalid or unsupported argument\n");
+		return;
+	}
+
+	switch (temp) {
+	case CMD_TEST_OBJECTS:
+
+		acpi_db_test_all_objects();
+		break;
+
+	case CMD_TEST_PREDEFINED:
+
+		acpi_db_evaluate_all_predefined_names(NULL);
+		break;
+
+	default:
+		break;
+	}
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_test_all_objects
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: This test implements the OBJECTS subcommand. It exercises the
+ *              namespace by reading/writing/comparing all data objects such
+ *              as integers, strings, buffers, fields, buffer fields, etc.
+ *
+ ******************************************************************************/
+
+static void acpi_db_test_all_objects(void)
+{
+	acpi_status status;
+
+	/* Install the debugger read-object control method if necessary */
+
+	if (!read_handle) {
+		status = acpi_install_method(read_method_code);
+		if (ACPI_FAILURE(status)) {
+			acpi_os_printf
+			    ("%s, Could not install debugger read method\n",
+			     acpi_format_exception(status));
+			return;
+		}
+
+		status =
+		    acpi_get_handle(NULL, ACPI_DB_READ_METHOD, &read_handle);
+		if (ACPI_FAILURE(status)) {
+			acpi_os_printf
+			    ("Could not obtain handle for debug method %s\n",
+			     ACPI_DB_READ_METHOD);
+			return;
+		}
+	}
+
+	/* Install the debugger write-object control method if necessary */
+
+	if (!write_handle) {
+		status = acpi_install_method(write_method_code);
+		if (ACPI_FAILURE(status)) {
+			acpi_os_printf
+			    ("%s, Could not install debugger write method\n",
+			     acpi_format_exception(status));
+			return;
+		}
+
+		status =
+		    acpi_get_handle(NULL, ACPI_DB_WRITE_METHOD, &write_handle);
+		if (ACPI_FAILURE(status)) {
+			acpi_os_printf
+			    ("Could not obtain handle for debug method %s\n",
+			     ACPI_DB_WRITE_METHOD);
+			return;
+		}
+	}
+
+	/* Walk the entire namespace, testing each supported named data object */
+
+	(void)acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
+				  ACPI_UINT32_MAX, acpi_db_test_one_object,
+				  NULL, NULL, NULL);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_test_one_object
+ *
+ * PARAMETERS:  acpi_walk_callback
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Test one namespace object. Supported types are Integer,
+ *              String, Buffer, buffer_field, and field_unit. All other object
+ *              types are simply ignored.
+ *
+ *              Note: Support for Packages is not implemented.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_db_test_one_object(acpi_handle obj_handle,
+			u32 nesting_level, void *context, void **return_value)
+{
+	struct acpi_namespace_node *node;
+	union acpi_operand_object *obj_desc;
+	union acpi_operand_object *region_obj;
+	acpi_object_type local_type;
+	u32 bit_length = 0;
+	u32 byte_length = 0;
+	acpi_status status = AE_OK;
+
+	node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle);
+	obj_desc = node->object;
+
+	/*
+	 * For the supported types, get the actual bit length or
+	 * byte length. Map the type to one of Integer/String/Buffer.
+	 */
+	switch (node->type) {
+	case ACPI_TYPE_INTEGER:
+
+		/* Integer width is either 32 or 64 */
+
+		local_type = ACPI_TYPE_INTEGER;
+		bit_length = acpi_gbl_integer_bit_width;
+		break;
+
+	case ACPI_TYPE_STRING:
+
+		local_type = ACPI_TYPE_STRING;
+		byte_length = obj_desc->string.length;
+		break;
+
+	case ACPI_TYPE_BUFFER:
+
+		local_type = ACPI_TYPE_BUFFER;
+		byte_length = obj_desc->buffer.length;
+		bit_length = byte_length * 8;
+		break;
+
+	case ACPI_TYPE_FIELD_UNIT:
+	case ACPI_TYPE_BUFFER_FIELD:
+	case ACPI_TYPE_LOCAL_REGION_FIELD:
+	case ACPI_TYPE_LOCAL_INDEX_FIELD:
+	case ACPI_TYPE_LOCAL_BANK_FIELD:
+
+		local_type = ACPI_TYPE_INTEGER;
+		if (obj_desc) {
+			/*
+			 * Returned object will be a Buffer if the field length
+			 * is larger than the size of an Integer (32 or 64 bits
+			 * depending on the DSDT version).
+			 */
+			bit_length = obj_desc->common_field.bit_length;
+			byte_length = ACPI_ROUND_BITS_UP_TO_BYTES(bit_length);
+			if (bit_length > acpi_gbl_integer_bit_width) {
+				local_type = ACPI_TYPE_BUFFER;
+			}
+		}
+		break;
+
+	default:
+
+		/* Ignore all other types */
+
+		return (AE_OK);
+	}
+
+	/* Emit the common prefix: Type:Name */
+
+	acpi_os_printf("%14s: %4.4s",
+		       acpi_ut_get_type_name(node->type), node->name.ascii);
+	if (!obj_desc) {
+		acpi_os_printf(" Ignoring, no attached object\n");
+		return (AE_OK);
+	}
+
+	/*
+	 * Check for unsupported region types. Note: acpi_exec simulates
+	 * access to system_memory, system_IO, PCI_Config, and EC.
+	 */
+	switch (node->type) {
+	case ACPI_TYPE_LOCAL_REGION_FIELD:
+
+		region_obj = obj_desc->field.region_obj;
+		switch (region_obj->region.space_id) {
+		case ACPI_ADR_SPACE_SYSTEM_MEMORY:
+		case ACPI_ADR_SPACE_SYSTEM_IO:
+		case ACPI_ADR_SPACE_PCI_CONFIG:
+		case ACPI_ADR_SPACE_EC:
+
+			break;
+
+		default:
+
+			acpi_os_printf
+			    ("    %s space is not supported [%4.4s]\n",
+			     acpi_ut_get_region_name(region_obj->region.
+						     space_id),
+			     region_obj->region.node->name.ascii);
+			return (AE_OK);
+		}
+		break;
+
+	default:
+		break;
+	}
+
+	/* At this point, we have resolved the object to one of the major types */
+
+	switch (local_type) {
+	case ACPI_TYPE_INTEGER:
+
+		status = acpi_db_test_integer_type(node, bit_length);
+		break;
+
+	case ACPI_TYPE_STRING:
+
+		status = acpi_db_test_string_type(node, byte_length);
+		break;
+
+	case ACPI_TYPE_BUFFER:
+
+		status = acpi_db_test_buffer_type(node, bit_length);
+		break;
+
+	default:
+
+		acpi_os_printf(" Ignoring, type not implemented (%2.2X)",
+			       local_type);
+		break;
+	}
+
+	switch (node->type) {
+	case ACPI_TYPE_LOCAL_REGION_FIELD:
+
+		region_obj = obj_desc->field.region_obj;
+		acpi_os_printf(" (%s)",
+			       acpi_ut_get_region_name(region_obj->region.
+						       space_id));
+		break;
+
+	default:
+		break;
+	}
+
+	acpi_os_printf("\n");
+	return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_test_integer_type
+ *
+ * PARAMETERS:  node                - Parent NS node for the object
+ *              bit_length          - Actual length of the object. Used for
+ *                                    support of arbitrary length field_unit
+ *                                    and buffer_field objects.
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Test read/write for an Integer-valued object. Performs a
+ *              write/read/compare of an arbitrary new value, then performs
+ *              a write/read/compare of the original value.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_db_test_integer_type(struct acpi_namespace_node *node, u32 bit_length)
+{
+	union acpi_object *temp1 = NULL;
+	union acpi_object *temp2 = NULL;
+	union acpi_object *temp3 = NULL;
+	union acpi_object write_value;
+	u64 value_to_write;
+	acpi_status status;
+
+	if (bit_length > 64) {
+		acpi_os_printf(" Invalid length for an Integer: %u",
+			       bit_length);
+		return (AE_OK);
+	}
+
+	/* Read the original value */
+
+	status = acpi_db_read_from_object(node, ACPI_TYPE_INTEGER, &temp1);
+	if (ACPI_FAILURE(status)) {
+		return (status);
+	}
+
+	acpi_os_printf(" (%4.4X/%3.3X) %8.8X%8.8X",
+		       bit_length, ACPI_ROUND_BITS_UP_TO_BYTES(bit_length),
+		       ACPI_FORMAT_UINT64(temp1->integer.value));
+
+	value_to_write = ACPI_UINT64_MAX >> (64 - bit_length);
+	if (temp1->integer.value == value_to_write) {
+		value_to_write = 0;
+	}
+
+	/* Write a new value */
+
+	write_value.type = ACPI_TYPE_INTEGER;
+	write_value.integer.value = value_to_write;
+	status = acpi_db_write_to_object(node, &write_value);
+	if (ACPI_FAILURE(status)) {
+		goto exit;
+	}
+
+	/* Ensure that we can read back the new value */
+
+	status = acpi_db_read_from_object(node, ACPI_TYPE_INTEGER, &temp2);
+	if (ACPI_FAILURE(status)) {
+		goto exit;
+	}
+
+	if (temp2->integer.value != value_to_write) {
+		acpi_os_printf(" MISMATCH 2: %8.8X%8.8X, expecting %8.8X%8.8X",
+			       ACPI_FORMAT_UINT64(temp2->integer.value),
+			       ACPI_FORMAT_UINT64(value_to_write));
+	}
+
+	/* Write back the original value */
+
+	write_value.integer.value = temp1->integer.value;
+	status = acpi_db_write_to_object(node, &write_value);
+	if (ACPI_FAILURE(status)) {
+		goto exit;
+	}
+
+	/* Ensure that we can read back the original value */
+
+	status = acpi_db_read_from_object(node, ACPI_TYPE_INTEGER, &temp3);
+	if (ACPI_FAILURE(status)) {
+		goto exit;
+	}
+
+	if (temp3->integer.value != temp1->integer.value) {
+		acpi_os_printf(" MISMATCH 3: %8.8X%8.8X, expecting %8.8X%8.8X",
+			       ACPI_FORMAT_UINT64(temp3->integer.value),
+			       ACPI_FORMAT_UINT64(temp1->integer.value));
+	}
+
+exit:
+	if (temp1) {
+		acpi_os_free(temp1);
+	}
+	if (temp2) {
+		acpi_os_free(temp2);
+	}
+	if (temp3) {
+		acpi_os_free(temp3);
+	}
+	return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_test_buffer_type
+ *
+ * PARAMETERS:  node                - Parent NS node for the object
+ *              bit_length          - Actual length of the object.
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Test read/write for an Buffer-valued object. Performs a
+ *              write/read/compare of an arbitrary new value, then performs
+ *              a write/read/compare of the original value.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_db_test_buffer_type(struct acpi_namespace_node *node, u32 bit_length)
+{
+	union acpi_object *temp1 = NULL;
+	union acpi_object *temp2 = NULL;
+	union acpi_object *temp3 = NULL;
+	u8 *buffer;
+	union acpi_object write_value;
+	acpi_status status;
+	u32 byte_length;
+	u32 i;
+	u8 extra_bits;
+
+	byte_length = ACPI_ROUND_BITS_UP_TO_BYTES(bit_length);
+	if (byte_length == 0) {
+		acpi_os_printf(" Ignoring zero length buffer");
+		return (AE_OK);
+	}
+
+	/* Allocate a local buffer */
+
+	buffer = ACPI_ALLOCATE_ZEROED(byte_length);
+	if (!buffer) {
+		return (AE_NO_MEMORY);
+	}
+
+	/* Read the original value */
+
+	status = acpi_db_read_from_object(node, ACPI_TYPE_BUFFER, &temp1);
+	if (ACPI_FAILURE(status)) {
+		goto exit;
+	}
+
+	/* Emit a few bytes of the buffer */
+
+	acpi_os_printf(" (%4.4X/%3.3X)", bit_length, temp1->buffer.length);
+	for (i = 0; ((i < 4) && (i < byte_length)); i++) {
+		acpi_os_printf(" %2.2X", temp1->buffer.pointer[i]);
+	}
+	acpi_os_printf("... ");
+
+	/*
+	 * Write a new value.
+	 *
+	 * Handle possible extra bits at the end of the buffer. Can
+	 * happen for field_units larger than an integer, but the bit
+	 * count is not an integral number of bytes. Zero out the
+	 * unused bits.
+	 */
+	memset(buffer, BUFFER_FILL_VALUE, byte_length);
+	extra_bits = bit_length % 8;
+	if (extra_bits) {
+		buffer[byte_length - 1] = ACPI_MASK_BITS_ABOVE(extra_bits);
+	}
+
+	write_value.type = ACPI_TYPE_BUFFER;
+	write_value.buffer.length = byte_length;
+	write_value.buffer.pointer = buffer;
+
+	status = acpi_db_write_to_object(node, &write_value);
+	if (ACPI_FAILURE(status)) {
+		goto exit;
+	}
+
+	/* Ensure that we can read back the new value */
+
+	status = acpi_db_read_from_object(node, ACPI_TYPE_BUFFER, &temp2);
+	if (ACPI_FAILURE(status)) {
+		goto exit;
+	}
+
+	if (memcmp(temp2->buffer.pointer, buffer, byte_length)) {
+		acpi_os_printf(" MISMATCH 2: New buffer value");
+	}
+
+	/* Write back the original value */
+
+	write_value.buffer.length = byte_length;
+	write_value.buffer.pointer = temp1->buffer.pointer;
+
+	status = acpi_db_write_to_object(node, &write_value);
+	if (ACPI_FAILURE(status)) {
+		goto exit;
+	}
+
+	/* Ensure that we can read back the original value */
+
+	status = acpi_db_read_from_object(node, ACPI_TYPE_BUFFER, &temp3);
+	if (ACPI_FAILURE(status)) {
+		goto exit;
+	}
+
+	if (memcmp(temp1->buffer.pointer, temp3->buffer.pointer, byte_length)) {
+		acpi_os_printf(" MISMATCH 3: While restoring original buffer");
+	}
+
+exit:
+	ACPI_FREE(buffer);
+	if (temp1) {
+		acpi_os_free(temp1);
+	}
+	if (temp2) {
+		acpi_os_free(temp2);
+	}
+	if (temp3) {
+		acpi_os_free(temp3);
+	}
+	return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_test_string_type
+ *
+ * PARAMETERS:  node                - Parent NS node for the object
+ *              byte_length         - Actual length of the object.
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Test read/write for an String-valued object. Performs a
+ *              write/read/compare of an arbitrary new value, then performs
+ *              a write/read/compare of the original value.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_db_test_string_type(struct acpi_namespace_node *node, u32 byte_length)
+{
+	union acpi_object *temp1 = NULL;
+	union acpi_object *temp2 = NULL;
+	union acpi_object *temp3 = NULL;
+	char *value_to_write = "Test String from AML Debugger";
+	union acpi_object write_value;
+	acpi_status status;
+
+	/* Read the original value */
+
+	status = acpi_db_read_from_object(node, ACPI_TYPE_STRING, &temp1);
+	if (ACPI_FAILURE(status)) {
+		return (status);
+	}
+
+	acpi_os_printf(" (%4.4X/%3.3X) \"%s\"", (temp1->string.length * 8),
+		       temp1->string.length, temp1->string.pointer);
+
+	/* Write a new value */
+
+	write_value.type = ACPI_TYPE_STRING;
+	write_value.string.length = strlen(value_to_write);
+	write_value.string.pointer = value_to_write;
+
+	status = acpi_db_write_to_object(node, &write_value);
+	if (ACPI_FAILURE(status)) {
+		goto exit;
+	}
+
+	/* Ensure that we can read back the new value */
+
+	status = acpi_db_read_from_object(node, ACPI_TYPE_STRING, &temp2);
+	if (ACPI_FAILURE(status)) {
+		goto exit;
+	}
+
+	if (strcmp(temp2->string.pointer, value_to_write)) {
+		acpi_os_printf(" MISMATCH 2: %s, expecting %s",
+			       temp2->string.pointer, value_to_write);
+	}
+
+	/* Write back the original value */
+
+	write_value.string.length = strlen(temp1->string.pointer);
+	write_value.string.pointer = temp1->string.pointer;
+
+	status = acpi_db_write_to_object(node, &write_value);
+	if (ACPI_FAILURE(status)) {
+		goto exit;
+	}
+
+	/* Ensure that we can read back the original value */
+
+	status = acpi_db_read_from_object(node, ACPI_TYPE_STRING, &temp3);
+	if (ACPI_FAILURE(status)) {
+		goto exit;
+	}
+
+	if (strcmp(temp1->string.pointer, temp3->string.pointer)) {
+		acpi_os_printf(" MISMATCH 3: %s, expecting %s",
+			       temp3->string.pointer, temp1->string.pointer);
+	}
+
+exit:
+	if (temp1) {
+		acpi_os_free(temp1);
+	}
+	if (temp2) {
+		acpi_os_free(temp2);
+	}
+	if (temp3) {
+		acpi_os_free(temp3);
+	}
+	return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_read_from_object
+ *
+ * PARAMETERS:  node                - Parent NS node for the object
+ *              expected_type       - Object type expected from the read
+ *              value               - Where the value read is returned
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Performs a read from the specified object by invoking the
+ *              special debugger control method that reads the object. Thus,
+ *              the AML interpreter is doing all of the work, increasing the
+ *              validity of the test.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_db_read_from_object(struct acpi_namespace_node *node,
+			 acpi_object_type expected_type,
+			 union acpi_object **value)
+{
+	union acpi_object *ret_value;
+	struct acpi_object_list param_objects;
+	union acpi_object params[2];
+	struct acpi_buffer return_obj;
+	acpi_status status;
+
+	params[0].type = ACPI_TYPE_LOCAL_REFERENCE;
+	params[0].reference.actual_type = node->type;
+	params[0].reference.handle = ACPI_CAST_PTR(acpi_handle, node);
+
+	param_objects.count = 1;
+	param_objects.pointer = params;
+
+	return_obj.length = ACPI_ALLOCATE_BUFFER;
+
+	acpi_gbl_method_executing = TRUE;
+	status = acpi_evaluate_object(read_handle, NULL,
+				      &param_objects, &return_obj);
+	acpi_gbl_method_executing = FALSE;
+
+	if (ACPI_FAILURE(status)) {
+		acpi_os_printf("Could not read from object, %s",
+			       acpi_format_exception(status));
+		return (status);
+	}
+
+	ret_value = (union acpi_object *)return_obj.pointer;
+
+	switch (ret_value->type) {
+	case ACPI_TYPE_INTEGER:
+	case ACPI_TYPE_BUFFER:
+	case ACPI_TYPE_STRING:
+		/*
+		 * Did we receive the type we wanted? Most important for the
+		 * Integer/Buffer case (when a field is larger than an Integer,
+		 * it should return a Buffer).
+		 */
+		if (ret_value->type != expected_type) {
+			acpi_os_printf
+			    (" Type mismatch: Expected %s, Received %s",
+			     acpi_ut_get_type_name(expected_type),
+			     acpi_ut_get_type_name(ret_value->type));
+
+			return (AE_TYPE);
+		}
+
+		*value = ret_value;
+		break;
+
+	default:
+
+		acpi_os_printf(" Unsupported return object type, %s",
+			       acpi_ut_get_type_name(ret_value->type));
+
+		acpi_os_free(return_obj.pointer);
+		return (AE_TYPE);
+	}
+
+	return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_write_to_object
+ *
+ * PARAMETERS:  node                - Parent NS node for the object
+ *              value               - Value to be written
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Performs a write to the specified object by invoking the
+ *              special debugger control method that writes the object. Thus,
+ *              the AML interpreter is doing all of the work, increasing the
+ *              validity of the test.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_db_write_to_object(struct acpi_namespace_node *node,
+			union acpi_object *value)
+{
+	struct acpi_object_list param_objects;
+	union acpi_object params[2];
+	acpi_status status;
+
+	params[0].type = ACPI_TYPE_LOCAL_REFERENCE;
+	params[0].reference.actual_type = node->type;
+	params[0].reference.handle = ACPI_CAST_PTR(acpi_handle, node);
+
+	/* Copy the incoming user parameter */
+
+	memcpy(&params[1], value, sizeof(union acpi_object));
+
+	param_objects.count = 2;
+	param_objects.pointer = params;
+
+	acpi_gbl_method_executing = TRUE;
+	status = acpi_evaluate_object(write_handle, NULL, &param_objects, NULL);
+	acpi_gbl_method_executing = FALSE;
+
+	if (ACPI_FAILURE(status)) {
+		acpi_os_printf("Could not write to object, %s",
+			       acpi_format_exception(status));
+	}
+
+	return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_evaluate_all_predefined_names
+ *
+ * PARAMETERS:  count_arg           - Max number of methods to execute
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Namespace batch execution. Execute predefined names in the
+ *              namespace, up to the max count, if specified.
+ *
+ ******************************************************************************/
+
+static void acpi_db_evaluate_all_predefined_names(char *count_arg)
+{
+	struct acpi_db_execute_walk info;
+
+	info.count = 0;
+	info.max_count = ACPI_UINT32_MAX;
+
+	if (count_arg) {
+		info.max_count = strtoul(count_arg, NULL, 0);
+	}
+
+	/* Search all nodes in namespace */
+
+	(void)acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
+				  ACPI_UINT32_MAX,
+				  acpi_db_evaluate_one_predefined_name, NULL,
+				  (void *)&info, NULL);
+
+	acpi_os_printf("Evaluated %u predefined names in the namespace\n",
+		       info.count);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_evaluate_one_predefined_name
+ *
+ * PARAMETERS:  Callback from walk_namespace
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Batch execution module. Currently only executes predefined
+ *              ACPI names.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_db_evaluate_one_predefined_name(acpi_handle obj_handle,
+				     u32 nesting_level,
+				     void *context, void **return_value)
+{
+	struct acpi_namespace_node *node =
+	    (struct acpi_namespace_node *)obj_handle;
+	struct acpi_db_execute_walk *info =
+	    (struct acpi_db_execute_walk *)context;
+	char *pathname;
+	const union acpi_predefined_info *predefined;
+	struct acpi_device_info *obj_info;
+	struct acpi_object_list param_objects;
+	union acpi_object params[ACPI_METHOD_NUM_ARGS];
+	union acpi_object *this_param;
+	struct acpi_buffer return_obj;
+	acpi_status status;
+	u16 arg_type_list;
+	u8 arg_count;
+	u8 arg_type;
+	u32 i;
+
+	/* The name must be a predefined ACPI name */
+
+	predefined = acpi_ut_match_predefined_method(node->name.ascii);
+	if (!predefined) {
+		return (AE_OK);
+	}
+
+	if (node->type == ACPI_TYPE_LOCAL_SCOPE) {
+		return (AE_OK);
+	}
+
+	pathname = acpi_ns_get_external_pathname(node);
+	if (!pathname) {
+		return (AE_OK);
+	}
+
+	/* Get the object info for number of method parameters */
+
+	status = acpi_get_object_info(obj_handle, &obj_info);
+	if (ACPI_FAILURE(status)) {
+		ACPI_FREE(pathname);
+		return (status);
+	}
+
+	param_objects.count = 0;
+	param_objects.pointer = NULL;
+
+	if (obj_info->type == ACPI_TYPE_METHOD) {
+
+		/* Setup default parameters (with proper types) */
+
+		arg_type_list = predefined->info.argument_list;
+		arg_count = METHOD_GET_ARG_COUNT(arg_type_list);
+
+		/*
+		 * Setup the ACPI-required number of arguments, regardless of what
+		 * the actual method defines. If there is a difference, then the
+		 * method is wrong and a warning will be issued during execution.
+		 */
+		this_param = params;
+		for (i = 0; i < arg_count; i++) {
+			arg_type = METHOD_GET_NEXT_TYPE(arg_type_list);
+			this_param->type = arg_type;
+
+			switch (arg_type) {
+			case ACPI_TYPE_INTEGER:
+
+				this_param->integer.value = 1;
+				break;
+
+			case ACPI_TYPE_STRING:
+
+				this_param->string.pointer =
+				    "This is the default argument string";
+				this_param->string.length =
+				    strlen(this_param->string.pointer);
+				break;
+
+			case ACPI_TYPE_BUFFER:
+
+				this_param->buffer.pointer = (u8 *)params;	/* just a garbage buffer */
+				this_param->buffer.length = 48;
+				break;
+
+			case ACPI_TYPE_PACKAGE:
+
+				this_param->package.elements = NULL;
+				this_param->package.count = 0;
+				break;
+
+			default:
+
+				acpi_os_printf
+				    ("%s: Unsupported argument type: %u\n",
+				     pathname, arg_type);
+				break;
+			}
+
+			this_param++;
+		}
+
+		param_objects.count = arg_count;
+		param_objects.pointer = params;
+	}
+
+	ACPI_FREE(obj_info);
+	return_obj.pointer = NULL;
+	return_obj.length = ACPI_ALLOCATE_BUFFER;
+
+	/* Do the actual method execution */
+
+	acpi_gbl_method_executing = TRUE;
+
+	status = acpi_evaluate_object(node, NULL, &param_objects, &return_obj);
+
+	acpi_os_printf("%-32s returned %s\n",
+		       pathname, acpi_format_exception(status));
+	acpi_gbl_method_executing = FALSE;
+	ACPI_FREE(pathname);
+
+	/* Ignore status from method execution */
+
+	status = AE_OK;
+
+	/* Update count, check if we have executed enough methods */
+
+	info->count++;
+	if (info->count >= info->max_count) {
+		status = AE_CTRL_TERMINATE;
+	}
+
+	return (status);
+}
diff --git a/drivers/acpi/acpica/dbutils.c b/drivers/acpi/acpica/dbutils.c
new file mode 100644
index 0000000..86790e0
--- /dev/null
+++ b/drivers/acpi/acpica/dbutils.c
@@ -0,0 +1,457 @@
+/*******************************************************************************
+ *
+ * Module Name: dbutils - AML debugger utilities
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2015, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acnamesp.h"
+#include "acdebug.h"
+
+#define _COMPONENT          ACPI_CA_DEBUGGER
+ACPI_MODULE_NAME("dbutils")
+
+/* Local prototypes */
+#ifdef ACPI_OBSOLETE_FUNCTIONS
+acpi_status acpi_db_second_pass_parse(union acpi_parse_object *root);
+
+void acpi_db_dump_buffer(u32 address);
+#endif
+
+static char *gbl_hex_to_ascii = "0123456789ABCDEF";
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_match_argument
+ *
+ * PARAMETERS:  user_argument           - User command line
+ *              arguments               - Array of commands to match against
+ *
+ * RETURN:      Index into command array or ACPI_TYPE_NOT_FOUND if not found
+ *
+ * DESCRIPTION: Search command array for a command match
+ *
+ ******************************************************************************/
+
+acpi_object_type
+acpi_db_match_argument(char *user_argument,
+		       struct acpi_db_argument_info *arguments)
+{
+	u32 i;
+
+	if (!user_argument || user_argument[0] == 0) {
+		return (ACPI_TYPE_NOT_FOUND);
+	}
+
+	for (i = 0; arguments[i].name; i++) {
+		if (strstr(arguments[i].name, user_argument) ==
+		    arguments[i].name) {
+			return (i);
+		}
+	}
+
+	/* Argument not recognized */
+
+	return (ACPI_TYPE_NOT_FOUND);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_set_output_destination
+ *
+ * PARAMETERS:  output_flags        - Current flags word
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Set the current destination for debugger output. Also sets
+ *              the debug output level accordingly.
+ *
+ ******************************************************************************/
+
+void acpi_db_set_output_destination(u32 output_flags)
+{
+
+	acpi_gbl_db_output_flags = (u8)output_flags;
+
+	if ((output_flags & ACPI_DB_REDIRECTABLE_OUTPUT) &&
+	    acpi_gbl_db_output_to_file) {
+		acpi_dbg_level = acpi_gbl_db_debug_level;
+	} else {
+		acpi_dbg_level = acpi_gbl_db_console_debug_level;
+	}
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_dump_external_object
+ *
+ * PARAMETERS:  obj_desc        - External ACPI object to dump
+ *              level           - Nesting level.
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Dump the contents of an ACPI external object
+ *
+ ******************************************************************************/
+
+void acpi_db_dump_external_object(union acpi_object *obj_desc, u32 level)
+{
+	u32 i;
+
+	if (!obj_desc) {
+		acpi_os_printf("[Null Object]\n");
+		return;
+	}
+
+	for (i = 0; i < level; i++) {
+		acpi_os_printf(" ");
+	}
+
+	switch (obj_desc->type) {
+	case ACPI_TYPE_ANY:
+
+		acpi_os_printf("[Null Object] (Type=0)\n");
+		break;
+
+	case ACPI_TYPE_INTEGER:
+
+		acpi_os_printf("[Integer] = %8.8X%8.8X\n",
+			       ACPI_FORMAT_UINT64(obj_desc->integer.value));
+		break;
+
+	case ACPI_TYPE_STRING:
+
+		acpi_os_printf("[String] Length %.2X = ",
+			       obj_desc->string.length);
+		acpi_ut_print_string(obj_desc->string.pointer, ACPI_UINT8_MAX);
+		acpi_os_printf("\n");
+		break;
+
+	case ACPI_TYPE_BUFFER:
+
+		acpi_os_printf("[Buffer] Length %.2X = ",
+			       obj_desc->buffer.length);
+		if (obj_desc->buffer.length) {
+			if (obj_desc->buffer.length > 16) {
+				acpi_os_printf("\n");
+			}
+			acpi_ut_debug_dump_buffer(ACPI_CAST_PTR
+						  (u8,
+						   obj_desc->buffer.pointer),
+						  obj_desc->buffer.length,
+						  DB_BYTE_DISPLAY, _COMPONENT);
+		} else {
+			acpi_os_printf("\n");
+		}
+		break;
+
+	case ACPI_TYPE_PACKAGE:
+
+		acpi_os_printf("[Package] Contains %u Elements:\n",
+			       obj_desc->package.count);
+
+		for (i = 0; i < obj_desc->package.count; i++) {
+			acpi_db_dump_external_object(&obj_desc->package.
+						     elements[i], level + 1);
+		}
+		break;
+
+	case ACPI_TYPE_LOCAL_REFERENCE:
+
+		acpi_os_printf("[Object Reference] = ");
+		acpi_db_display_internal_object(obj_desc->reference.handle,
+						NULL);
+		break;
+
+	case ACPI_TYPE_PROCESSOR:
+
+		acpi_os_printf("[Processor]\n");
+		break;
+
+	case ACPI_TYPE_POWER:
+
+		acpi_os_printf("[Power Resource]\n");
+		break;
+
+	default:
+
+		acpi_os_printf("[Unknown Type] %X\n", obj_desc->type);
+		break;
+	}
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_prep_namestring
+ *
+ * PARAMETERS:  name            - String to prepare
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Translate all forward slashes and dots to backslashes.
+ *
+ ******************************************************************************/
+
+void acpi_db_prep_namestring(char *name)
+{
+
+	if (!name) {
+		return;
+	}
+
+	acpi_ut_strupr(name);
+
+	/* Convert a leading forward slash to a backslash */
+
+	if (*name == '/') {
+		*name = '\\';
+	}
+
+	/* Ignore a leading backslash, this is the root prefix */
+
+	if (ACPI_IS_ROOT_PREFIX(*name)) {
+		name++;
+	}
+
+	/* Convert all slash path separators to dots */
+
+	while (*name) {
+		if ((*name == '/') || (*name == '\\')) {
+			*name = '.';
+		}
+
+		name++;
+	}
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_local_ns_lookup
+ *
+ * PARAMETERS:  name            - Name to lookup
+ *
+ * RETURN:      Pointer to a namespace node, null on failure
+ *
+ * DESCRIPTION: Lookup a name in the ACPI namespace
+ *
+ * Note: Currently begins search from the root. Could be enhanced to use
+ * the current prefix (scope) node as the search beginning point.
+ *
+ ******************************************************************************/
+
+struct acpi_namespace_node *acpi_db_local_ns_lookup(char *name)
+{
+	char *internal_path;
+	acpi_status status;
+	struct acpi_namespace_node *node = NULL;
+
+	acpi_db_prep_namestring(name);
+
+	/* Build an internal namestring */
+
+	status = acpi_ns_internalize_name(name, &internal_path);
+	if (ACPI_FAILURE(status)) {
+		acpi_os_printf("Invalid namestring: %s\n", name);
+		return (NULL);
+	}
+
+	/*
+	 * Lookup the name.
+	 * (Uses root node as the search starting point)
+	 */
+	status = acpi_ns_lookup(NULL, internal_path, ACPI_TYPE_ANY,
+				ACPI_IMODE_EXECUTE,
+				ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE,
+				NULL, &node);
+	if (ACPI_FAILURE(status)) {
+		acpi_os_printf("Could not locate name: %s, %s\n",
+			       name, acpi_format_exception(status));
+	}
+
+	ACPI_FREE(internal_path);
+	return (node);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_uint32_to_hex_string
+ *
+ * PARAMETERS:  value           - The value to be converted to string
+ *              buffer          - Buffer for result (not less than 11 bytes)
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Convert the unsigned 32-bit value to the hexadecimal image
+ *
+ * NOTE: It is the caller's responsibility to ensure that the length of buffer
+ *       is sufficient.
+ *
+ ******************************************************************************/
+
+void acpi_db_uint32_to_hex_string(u32 value, char *buffer)
+{
+	int i;
+
+	if (value == 0) {
+		strcpy(buffer, "0");
+		return;
+	}
+
+	buffer[8] = '\0';
+
+	for (i = 7; i >= 0; i--) {
+		buffer[i] = gbl_hex_to_ascii[value & 0x0F];
+		value = value >> 4;
+	}
+}
+
+#ifdef ACPI_OBSOLETE_FUNCTIONS
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_second_pass_parse
+ *
+ * PARAMETERS:  root            - Root of the parse tree
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Second pass parse of the ACPI tables. We need to wait until
+ *              second pass to parse the control methods
+ *
+ ******************************************************************************/
+
+acpi_status acpi_db_second_pass_parse(union acpi_parse_object *root)
+{
+	union acpi_parse_object *op = root;
+	union acpi_parse_object *method;
+	union acpi_parse_object *search_op;
+	union acpi_parse_object *start_op;
+	acpi_status status = AE_OK;
+	u32 base_aml_offset;
+	struct acpi_walk_state *walk_state;
+
+	ACPI_FUNCTION_ENTRY();
+
+	acpi_os_printf("Pass two parse ....\n");
+
+	while (op) {
+		if (op->common.aml_opcode == AML_METHOD_OP) {
+			method = op;
+
+			/* Create a new walk state for the parse */
+
+			walk_state =
+			    acpi_ds_create_walk_state(0, NULL, NULL, NULL);
+			if (!walk_state) {
+				return (AE_NO_MEMORY);
+			}
+
+			/* Init the Walk State */
+
+			walk_state->parser_state.aml =
+			    walk_state->parser_state.aml_start =
+			    method->named.data;
+			walk_state->parser_state.aml_end =
+			    walk_state->parser_state.pkg_end =
+			    method->named.data + method->named.length;
+			walk_state->parser_state.start_scope = op;
+
+			walk_state->descending_callback =
+			    acpi_ds_load1_begin_op;
+			walk_state->ascending_callback = acpi_ds_load1_end_op;
+
+			/* Perform the AML parse */
+
+			status = acpi_ps_parse_aml(walk_state);
+
+			base_aml_offset =
+			    (method->common.value.arg)->common.aml_offset + 1;
+			start_op = (method->common.value.arg)->common.next;
+			search_op = start_op;
+
+			while (search_op) {
+				search_op->common.aml_offset += base_aml_offset;
+				search_op =
+				    acpi_ps_get_depth_next(start_op, search_op);
+			}
+		}
+
+		if (op->common.aml_opcode == AML_REGION_OP) {
+
+			/* TBD: [Investigate] this isn't quite the right thing to do! */
+			/*
+			 *
+			 * Method = (ACPI_DEFERRED_OP *) Op;
+			 * Status = acpi_ps_parse_aml (Op, Method->Body, Method->body_length);
+			 */
+		}
+
+		if (ACPI_FAILURE(status)) {
+			break;
+		}
+
+		op = acpi_ps_get_depth_next(root, op);
+	}
+
+	return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_dump_buffer
+ *
+ * PARAMETERS:  address             - Pointer to the buffer
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Print a portion of a buffer
+ *
+ ******************************************************************************/
+
+void acpi_db_dump_buffer(u32 address)
+{
+
+	acpi_os_printf("\nLocation %X:\n", address);
+
+	acpi_dbg_level |= ACPI_LV_TABLES;
+	acpi_ut_debug_dump_buffer(ACPI_TO_POINTER(address), 64, DB_BYTE_DISPLAY,
+				  ACPI_UINT32_MAX);
+}
+#endif
diff --git a/drivers/acpi/acpica/dbxface.c b/drivers/acpi/acpica/dbxface.c
new file mode 100644
index 0000000..342298a
--- /dev/null
+++ b/drivers/acpi/acpica/dbxface.c
@@ -0,0 +1,513 @@
+/*******************************************************************************
+ *
+ * Module Name: dbxface - AML Debugger external interfaces
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2015, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "amlcode.h"
+#include "acdebug.h"
+
+#define _COMPONENT          ACPI_CA_DEBUGGER
+ACPI_MODULE_NAME("dbxface")
+
+/* Local prototypes */
+static acpi_status
+acpi_db_start_command(struct acpi_walk_state *walk_state,
+		      union acpi_parse_object *op);
+
+#ifdef ACPI_OBSOLETE_FUNCTIONS
+void acpi_db_method_end(struct acpi_walk_state *walk_state);
+#endif
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_start_command
+ *
+ * PARAMETERS:  walk_state      - Current walk
+ *              op              - Current executing Op, from AML interpreter
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Enter debugger command loop
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_db_start_command(struct acpi_walk_state *walk_state,
+		      union acpi_parse_object *op)
+{
+	acpi_status status;
+
+	/* TBD: [Investigate] are there namespace locking issues here? */
+
+	/* acpi_ut_release_mutex (ACPI_MTX_NAMESPACE); */
+
+	/* Go into the command loop and await next user command */
+
+	acpi_gbl_method_executing = TRUE;
+	status = AE_CTRL_TRUE;
+	while (status == AE_CTRL_TRUE) {
+		if (acpi_gbl_debugger_configuration == DEBUGGER_MULTI_THREADED) {
+
+			/* Handshake with the front-end that gets user command lines */
+
+			acpi_os_release_mutex(acpi_gbl_db_command_complete);
+
+			status =
+			    acpi_os_acquire_mutex(acpi_gbl_db_command_ready,
+						  ACPI_WAIT_FOREVER);
+			if (ACPI_FAILURE(status)) {
+				return (status);
+			}
+		} else {
+			/* Single threaded, we must get a command line ourselves */
+
+			/* Force output to console until a command is entered */
+
+			acpi_db_set_output_destination(ACPI_DB_CONSOLE_OUTPUT);
+
+			/* Different prompt if method is executing */
+
+			if (!acpi_gbl_method_executing) {
+				acpi_os_printf("%1c ",
+					       ACPI_DEBUGGER_COMMAND_PROMPT);
+			} else {
+				acpi_os_printf("%1c ",
+					       ACPI_DEBUGGER_EXECUTE_PROMPT);
+			}
+
+			/* Get the user input line */
+
+			status = acpi_os_get_line(acpi_gbl_db_line_buf,
+						  ACPI_DB_LINE_BUFFER_SIZE,
+						  NULL);
+			if (ACPI_FAILURE(status)) {
+				ACPI_EXCEPTION((AE_INFO, status,
+						"While parsing command line"));
+				return (status);
+			}
+		}
+
+		status =
+		    acpi_db_command_dispatch(acpi_gbl_db_line_buf, walk_state,
+					     op);
+	}
+
+	/* acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE); */
+
+	return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_single_step
+ *
+ * PARAMETERS:  walk_state      - Current walk
+ *              op              - Current executing op (from aml interpreter)
+ *              opcode_class    - Class of the current AML Opcode
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Called just before execution of an AML opcode.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_db_single_step(struct acpi_walk_state * walk_state,
+		    union acpi_parse_object * op, u32 opcode_class)
+{
+	union acpi_parse_object *next;
+	acpi_status status = AE_OK;
+	u32 original_debug_level;
+	union acpi_parse_object *display_op;
+	union acpi_parse_object *parent_op;
+	u32 aml_offset;
+
+	ACPI_FUNCTION_ENTRY();
+
+#ifndef ACPI_APPLICATION
+	if (acpi_gbl_db_thread_id != acpi_os_get_thread_id()) {
+		return (AE_OK);
+	}
+#endif
+
+	/* Check the abort flag */
+
+	if (acpi_gbl_abort_method) {
+		acpi_gbl_abort_method = FALSE;
+		return (AE_ABORT_METHOD);
+	}
+
+	aml_offset = (u32)ACPI_PTR_DIFF(op->common.aml,
+					walk_state->parser_state.aml_start);
+
+	/* Check for single-step breakpoint */
+
+	if (walk_state->method_breakpoint &&
+	    (walk_state->method_breakpoint <= aml_offset)) {
+
+		/* Check if the breakpoint has been reached or passed */
+		/* Hit the breakpoint, resume single step, reset breakpoint */
+
+		acpi_os_printf("***Break*** at AML offset %X\n", aml_offset);
+		acpi_gbl_cm_single_step = TRUE;
+		acpi_gbl_step_to_next_call = FALSE;
+		walk_state->method_breakpoint = 0;
+	}
+
+	/* Check for user breakpoint (Must be on exact Aml offset) */
+
+	else if (walk_state->user_breakpoint &&
+		 (walk_state->user_breakpoint == aml_offset)) {
+		acpi_os_printf("***UserBreakpoint*** at AML offset %X\n",
+			       aml_offset);
+		acpi_gbl_cm_single_step = TRUE;
+		acpi_gbl_step_to_next_call = FALSE;
+		walk_state->method_breakpoint = 0;
+	}
+
+	/*
+	 * Check if this is an opcode that we are interested in --
+	 * namely, opcodes that have arguments
+	 */
+	if (op->common.aml_opcode == AML_INT_NAMEDFIELD_OP) {
+		return (AE_OK);
+	}
+
+	switch (opcode_class) {
+	case AML_CLASS_UNKNOWN:
+	case AML_CLASS_ARGUMENT:	/* constants, literals, etc. do nothing */
+
+		return (AE_OK);
+
+	default:
+
+		/* All other opcodes -- continue */
+		break;
+	}
+
+	/*
+	 * Under certain debug conditions, display this opcode and its operands
+	 */
+	if ((acpi_gbl_db_output_to_file) ||
+	    (acpi_gbl_cm_single_step) || (acpi_dbg_level & ACPI_LV_PARSE)) {
+		if ((acpi_gbl_db_output_to_file) ||
+		    (acpi_dbg_level & ACPI_LV_PARSE)) {
+			acpi_os_printf
+			    ("\n[AmlDebug] Next AML Opcode to execute:\n");
+		}
+
+		/*
+		 * Display this op (and only this op - zero out the NEXT field
+		 * temporarily, and disable parser trace output for the duration of
+		 * the display because we don't want the extraneous debug output)
+		 */
+		original_debug_level = acpi_dbg_level;
+		acpi_dbg_level &= ~(ACPI_LV_PARSE | ACPI_LV_FUNCTIONS);
+		next = op->common.next;
+		op->common.next = NULL;
+
+		display_op = op;
+		parent_op = op->common.parent;
+		if (parent_op) {
+			if ((walk_state->control_state) &&
+			    (walk_state->control_state->common.state ==
+			     ACPI_CONTROL_PREDICATE_EXECUTING)) {
+				/*
+				 * We are executing the predicate of an IF or WHILE statement
+				 * Search upwards for the containing IF or WHILE so that the
+				 * entire predicate can be displayed.
+				 */
+				while (parent_op) {
+					if ((parent_op->common.aml_opcode ==
+					     AML_IF_OP)
+					    || (parent_op->common.aml_opcode ==
+						AML_WHILE_OP)) {
+						display_op = parent_op;
+						break;
+					}
+					parent_op = parent_op->common.parent;
+				}
+			} else {
+				while (parent_op) {
+					if ((parent_op->common.aml_opcode ==
+					     AML_IF_OP)
+					    || (parent_op->common.aml_opcode ==
+						AML_ELSE_OP)
+					    || (parent_op->common.aml_opcode ==
+						AML_SCOPE_OP)
+					    || (parent_op->common.aml_opcode ==
+						AML_METHOD_OP)
+					    || (parent_op->common.aml_opcode ==
+						AML_WHILE_OP)) {
+						break;
+					}
+					display_op = parent_op;
+					parent_op = parent_op->common.parent;
+				}
+			}
+		}
+
+		/* Now we can display it */
+
+#ifdef ACPI_DISASSEMBLER
+		acpi_dm_disassemble(walk_state, display_op, ACPI_UINT32_MAX);
+#endif
+
+		if ((op->common.aml_opcode == AML_IF_OP) ||
+		    (op->common.aml_opcode == AML_WHILE_OP)) {
+			if (walk_state->control_state->common.value) {
+				acpi_os_printf
+				    ("Predicate = [True], IF block was executed\n");
+			} else {
+				acpi_os_printf
+				    ("Predicate = [False], Skipping IF block\n");
+			}
+		} else if (op->common.aml_opcode == AML_ELSE_OP) {
+			acpi_os_printf
+			    ("Predicate = [False], ELSE block was executed\n");
+		}
+
+		/* Restore everything */
+
+		op->common.next = next;
+		acpi_os_printf("\n");
+		if ((acpi_gbl_db_output_to_file) ||
+		    (acpi_dbg_level & ACPI_LV_PARSE)) {
+			acpi_os_printf("\n");
+		}
+		acpi_dbg_level = original_debug_level;
+	}
+
+	/* If we are not single stepping, just continue executing the method */
+
+	if (!acpi_gbl_cm_single_step) {
+		return (AE_OK);
+	}
+
+	/*
+	 * If we are executing a step-to-call command,
+	 * Check if this is a method call.
+	 */
+	if (acpi_gbl_step_to_next_call) {
+		if (op->common.aml_opcode != AML_INT_METHODCALL_OP) {
+
+			/* Not a method call, just keep executing */
+
+			return (AE_OK);
+		}
+
+		/* Found a method call, stop executing */
+
+		acpi_gbl_step_to_next_call = FALSE;
+	}
+
+	/*
+	 * If the next opcode is a method call, we will "step over" it
+	 * by default.
+	 */
+	if (op->common.aml_opcode == AML_INT_METHODCALL_OP) {
+
+		/* Force no more single stepping while executing called method */
+
+		acpi_gbl_cm_single_step = FALSE;
+
+		/*
+		 * Set the breakpoint on/before the call, it will stop execution
+		 * as soon as we return
+		 */
+		walk_state->method_breakpoint = 1;	/* Must be non-zero! */
+	}
+
+	status = acpi_db_start_command(walk_state, op);
+
+	/* User commands complete, continue execution of the interrupted method */
+
+	return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_initialize_debugger
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Init and start debugger
+ *
+ ******************************************************************************/
+
+acpi_status acpi_initialize_debugger(void)
+{
+	acpi_status status;
+
+	ACPI_FUNCTION_TRACE(acpi_initialize_debugger);
+
+	/* Init globals */
+
+	acpi_gbl_db_buffer = NULL;
+	acpi_gbl_db_filename = NULL;
+	acpi_gbl_db_output_to_file = FALSE;
+
+	acpi_gbl_db_debug_level = ACPI_LV_VERBOSITY2;
+	acpi_gbl_db_console_debug_level = ACPI_NORMAL_DEFAULT | ACPI_LV_TABLES;
+	acpi_gbl_db_output_flags = ACPI_DB_CONSOLE_OUTPUT;
+
+	acpi_gbl_db_opt_no_ini_methods = FALSE;
+
+	acpi_gbl_db_buffer = acpi_os_allocate(ACPI_DEBUG_BUFFER_SIZE);
+	if (!acpi_gbl_db_buffer) {
+		return_ACPI_STATUS(AE_NO_MEMORY);
+	}
+	memset(acpi_gbl_db_buffer, 0, ACPI_DEBUG_BUFFER_SIZE);
+
+	/* Initial scope is the root */
+
+	acpi_gbl_db_scope_buf[0] = AML_ROOT_PREFIX;
+	acpi_gbl_db_scope_buf[1] = 0;
+	acpi_gbl_db_scope_node = acpi_gbl_root_node;
+
+	/* Initialize user commands loop */
+
+	acpi_gbl_db_terminate_loop = FALSE;
+
+	/*
+	 * If configured for multi-thread support, the debug executor runs in
+	 * a separate thread so that the front end can be in another address
+	 * space, environment, or even another machine.
+	 */
+	if (acpi_gbl_debugger_configuration & DEBUGGER_MULTI_THREADED) {
+
+		/* These were created with one unit, grab it */
+
+		status = acpi_os_acquire_mutex(acpi_gbl_db_command_complete,
+					       ACPI_WAIT_FOREVER);
+		if (ACPI_FAILURE(status)) {
+			acpi_os_printf("Could not get debugger mutex\n");
+			return_ACPI_STATUS(status);
+		}
+
+		status = acpi_os_acquire_mutex(acpi_gbl_db_command_ready,
+					       ACPI_WAIT_FOREVER);
+		if (ACPI_FAILURE(status)) {
+			acpi_os_printf("Could not get debugger mutex\n");
+			return_ACPI_STATUS(status);
+		}
+
+		/* Create the debug execution thread to execute commands */
+
+		acpi_gbl_db_threads_terminated = FALSE;
+		status = acpi_os_execute(OSL_DEBUGGER_MAIN_THREAD,
+					 acpi_db_execute_thread, NULL);
+		if (ACPI_FAILURE(status)) {
+			ACPI_EXCEPTION((AE_INFO, status,
+					"Could not start debugger thread"));
+			acpi_gbl_db_threads_terminated = TRUE;
+			return_ACPI_STATUS(status);
+		}
+	} else {
+		acpi_gbl_db_thread_id = acpi_os_get_thread_id();
+	}
+
+	return_ACPI_STATUS(AE_OK);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_initialize_debugger)
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_terminate_debugger
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Stop debugger
+ *
+ ******************************************************************************/
+void acpi_terminate_debugger(void)
+{
+
+	/* Terminate the AML Debugger */
+
+	acpi_gbl_db_terminate_loop = TRUE;
+
+	if (acpi_gbl_debugger_configuration & DEBUGGER_MULTI_THREADED) {
+		acpi_os_release_mutex(acpi_gbl_db_command_ready);
+
+		/* Wait the AML Debugger threads */
+
+		while (!acpi_gbl_db_threads_terminated) {
+			acpi_os_sleep(100);
+		}
+	}
+
+	if (acpi_gbl_db_buffer) {
+		acpi_os_free(acpi_gbl_db_buffer);
+		acpi_gbl_db_buffer = NULL;
+	}
+
+	/* Ensure that debug output is now disabled */
+
+	acpi_gbl_db_output_flags = ACPI_DB_DISABLE_OUTPUT;
+}
+
+ACPI_EXPORT_SYMBOL(acpi_terminate_debugger)
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_set_debugger_thread_id
+ *
+ * PARAMETERS:  thread_id       - Debugger thread ID
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Set debugger thread ID
+ *
+ ******************************************************************************/
+void acpi_set_debugger_thread_id(acpi_thread_id thread_id)
+{
+	acpi_gbl_db_thread_id = thread_id;
+}
+
+ACPI_EXPORT_SYMBOL(acpi_set_debugger_thread_id)
diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c
index 81f2d9e..07d22bf 100644
--- a/drivers/acpi/acpica/evxface.c
+++ b/drivers/acpi/acpica/evxface.c
@@ -405,7 +405,7 @@
 }
 
 ACPI_EXPORT_SYMBOL(acpi_install_exception_handler)
-#endif				/*  ACPI_FUTURE_USAGE  */
+#endif
 
 #if (!ACPI_REDUCED_HARDWARE)
 /*******************************************************************************
diff --git a/drivers/acpi/acpica/evxfevnt.c b/drivers/acpi/acpica/evxfevnt.c
index faad911..10ce48e 100644
--- a/drivers/acpi/acpica/evxfevnt.c
+++ b/drivers/acpi/acpica/evxfevnt.c
@@ -71,7 +71,7 @@
 
 	/* ACPI tables must be present */
 
-	if (!acpi_tb_tables_loaded()) {
+	if (acpi_gbl_fadt_index == ACPI_INVALID_TABLE_INDEX) {
 		return_ACPI_STATUS(AE_NO_ACPI_TABLES);
 	}
 
diff --git a/drivers/acpi/acpica/exconvrt.c b/drivers/acpi/acpica/exconvrt.c
index 075d654..1e4c5b6 100644
--- a/drivers/acpi/acpica/exconvrt.c
+++ b/drivers/acpi/acpica/exconvrt.c
@@ -618,6 +618,7 @@
 		break;
 
 	case ARGI_TARGETREF:
+	case ARGI_STORE_TARGET:
 
 		switch (destination_type) {
 		case ACPI_TYPE_INTEGER:
diff --git a/drivers/acpi/acpica/exresolv.c b/drivers/acpi/acpica/exresolv.c
index 7b10912..a1afe1a 100644
--- a/drivers/acpi/acpica/exresolv.c
+++ b/drivers/acpi/acpica/exresolv.c
@@ -209,7 +209,6 @@
 					 * (i.e., dereference the package index)
 					 * Delete the ref object, increment the returned object
 					 */
-					acpi_ut_remove_reference(stack_desc);
 					acpi_ut_add_reference(obj_desc);
 					*stack_ptr = obj_desc;
 				} else {
diff --git a/drivers/acpi/acpica/exresop.c b/drivers/acpi/acpica/exresop.c
index d2964af..424442d 100644
--- a/drivers/acpi/acpica/exresop.c
+++ b/drivers/acpi/acpica/exresop.c
@@ -307,6 +307,8 @@
 		case ARGI_TARGETREF:	/* Allows implicit conversion rules before store */
 		case ARGI_FIXED_TARGET:	/* No implicit conversion before store to target */
 		case ARGI_SIMPLE_TARGET:	/* Name, Local, or arg - no implicit conversion  */
+		case ARGI_STORE_TARGET:
+
 			/*
 			 * Need an operand of type ACPI_TYPE_LOCAL_REFERENCE
 			 * A Namespace Node is OK as-is
diff --git a/drivers/acpi/acpica/exstore.c b/drivers/acpi/acpica/exstore.c
index a7eee24..c076e91 100644
--- a/drivers/acpi/acpica/exstore.c
+++ b/drivers/acpi/acpica/exstore.c
@@ -137,7 +137,7 @@
 		/* Destination is not a Reference object */
 
 		ACPI_ERROR((AE_INFO,
-			    "Target is not a Reference or Constant object - %s [%p]",
+			    "Target is not a Reference or Constant object - [%s] %p",
 			    acpi_ut_get_object_type_name(dest_desc),
 			    dest_desc));
 
@@ -189,7 +189,7 @@
 		 * displayed and otherwise has no effect -- see ACPI Specification
 		 */
 		ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-				  "**** Write to Debug Object: Object %p %s ****:\n\n",
+				  "**** Write to Debug Object: Object %p [%s] ****:\n\n",
 				  source_desc,
 				  acpi_ut_get_object_type_name(source_desc)));
 
@@ -341,7 +341,7 @@
 			/* All other types are invalid */
 
 			ACPI_ERROR((AE_INFO,
-				    "Source must be Integer/Buffer/String type, not %s",
+				    "Source must be type [Integer/Buffer/String], found [%s]",
 				    acpi_ut_get_object_type_name(source_desc)));
 			return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
 		}
@@ -352,8 +352,9 @@
 		break;
 
 	default:
-		ACPI_ERROR((AE_INFO, "Target is not a Package or BufferField"));
-		status = AE_AML_OPERAND_TYPE;
+		ACPI_ERROR((AE_INFO,
+			    "Target is not of type [Package/BufferField]"));
+		status = AE_AML_TARGET_TYPE;
 		break;
 	}
 
@@ -373,20 +374,20 @@
  *
  * DESCRIPTION: Store the object to the named object.
  *
- *              The Assignment of an object to a named object is handled here
- *              The value passed in will replace the current value (if any)
- *              with the input value.
+ * The assignment of an object to a named object is handled here.
+ * The value passed in will replace the current value (if any)
+ * with the input value.
  *
- *              When storing into an object the data is converted to the
- *              target object type then stored in the object. This means
- *              that the target object type (for an initialized target) will
- *              not be changed by a store operation. A copy_object can change
- *              the target type, however.
+ * When storing into an object the data is converted to the
+ * target object type then stored in the object. This means
+ * that the target object type (for an initialized target) will
+ * not be changed by a store operation. A copy_object can change
+ * the target type, however.
  *
- *              The implicit_conversion flag is set to NO/FALSE only when
- *              storing to an arg_x -- as per the rules of the ACPI spec.
+ * The implicit_conversion flag is set to NO/FALSE only when
+ * storing to an arg_x -- as per the rules of the ACPI spec.
  *
- *              Assumes parameters are already validated.
+ * Assumes parameters are already validated.
  *
  ******************************************************************************/
 
@@ -408,11 +409,75 @@
 	target_type = acpi_ns_get_type(node);
 	target_desc = acpi_ns_get_attached_object(node);
 
-	ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Storing %p (%s) to node %p (%s)\n",
+	ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Storing %p [%s] to node %p [%s]\n",
 			  source_desc,
 			  acpi_ut_get_object_type_name(source_desc), node,
 			  acpi_ut_get_type_name(target_type)));
 
+	/* Only limited target types possible for everything except copy_object */
+
+	if (walk_state->opcode != AML_COPY_OP) {
+		/*
+		 * Only copy_object allows all object types to be overwritten. For
+		 * target_ref(s), there are restrictions on the object types that
+		 * are allowed.
+		 *
+		 * Allowable operations/typing for Store:
+		 *
+		 * 1) Simple Store
+		 *      Integer     --> Integer (Named/Local/Arg)
+		 *      String      --> String  (Named/Local/Arg)
+		 *      Buffer      --> Buffer  (Named/Local/Arg)
+		 *      Package     --> Package (Named/Local/Arg)
+		 *
+		 * 2) Store with implicit conversion
+		 *      Integer     --> String or Buffer  (Named)
+		 *      String      --> Integer or Buffer (Named)
+		 *      Buffer      --> Integer or String (Named)
+		 */
+		switch (target_type) {
+		case ACPI_TYPE_PACKAGE:
+			/*
+			 * Here, can only store a package to an existing package.
+			 * Storing a package to a Local/Arg is OK, and handled
+			 * elsewhere.
+			 */
+			if (walk_state->opcode == AML_STORE_OP) {
+				if (source_desc->common.type !=
+				    ACPI_TYPE_PACKAGE) {
+					ACPI_ERROR((AE_INFO,
+						    "Cannot assign type [%s] to [Package] "
+						    "(source must be type Pkg)",
+						    acpi_ut_get_object_type_name
+						    (source_desc)));
+
+					return_ACPI_STATUS(AE_AML_TARGET_TYPE);
+				}
+				break;
+			}
+
+			/* Fallthrough */
+
+		case ACPI_TYPE_DEVICE:
+		case ACPI_TYPE_EVENT:
+		case ACPI_TYPE_MUTEX:
+		case ACPI_TYPE_REGION:
+		case ACPI_TYPE_POWER:
+		case ACPI_TYPE_PROCESSOR:
+		case ACPI_TYPE_THERMAL:
+
+			ACPI_ERROR((AE_INFO,
+				    "Target must be [Buffer/Integer/String/Reference], found [%s] (%4.4s)",
+				    acpi_ut_get_type_name(node->type),
+				    node->name.ascii));
+
+			return_ACPI_STATUS(AE_AML_TARGET_TYPE);
+
+		default:
+			break;
+		}
+	}
+
 	/*
 	 * Resolve the source object to an actual value
 	 * (If it is a reference object)
@@ -425,13 +490,13 @@
 	/* Do the actual store operation */
 
 	switch (target_type) {
-	case ACPI_TYPE_INTEGER:
-	case ACPI_TYPE_STRING:
-	case ACPI_TYPE_BUFFER:
 		/*
 		 * The simple data types all support implicit source operand
 		 * conversion before the store.
 		 */
+	case ACPI_TYPE_INTEGER:
+	case ACPI_TYPE_STRING:
+	case ACPI_TYPE_BUFFER:
 
 		if ((walk_state->opcode == AML_COPY_OP) || !implicit_conversion) {
 			/*
@@ -467,7 +532,7 @@
 						       new_desc->common.type);
 
 			ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-					  "Store %s into %s via Convert/Attach\n",
+					  "Store type [%s] into [%s] via Convert/Attach\n",
 					  acpi_ut_get_object_type_name
 					  (source_desc),
 					  acpi_ut_get_object_type_name
@@ -491,15 +556,12 @@
 
 	default:
 		/*
-		 * No conversions for all other types. Directly store a copy of
-		 * the source object. This is the ACPI spec-defined behavior for
-		 * the copy_object operator.
+		 * copy_object operator: No conversions for all other types.
+		 * Instead, directly store a copy of the source object.
 		 *
-		 * NOTE: For the Store operator, this is a departure from the
-		 * ACPI spec, which states "If conversion is impossible, abort
-		 * the running control method". Instead, this code implements
-		 * "If conversion is impossible, treat the Store operation as
-		 * a CopyObject".
+		 * This is the ACPI spec-defined behavior for the copy_object
+		 * operator. (Note, for this default case, all normal
+		 * Store/Target operations exited above with an error).
 		 */
 		status = acpi_ex_store_direct_to_node(source_desc, node,
 						      walk_state);
diff --git a/drivers/acpi/acpica/exstoren.c b/drivers/acpi/acpica/exstoren.c
index 3101607..d1841de 100644
--- a/drivers/acpi/acpica/exstoren.c
+++ b/drivers/acpi/acpica/exstoren.c
@@ -122,9 +122,10 @@
 			/* Conversion successful but still not a valid type */
 
 			ACPI_ERROR((AE_INFO,
-				    "Cannot assign type %s to %s (must be type Int/Str/Buf)",
+				    "Cannot assign type [%s] to [%s] (must be type Int/Str/Buf)",
 				    acpi_ut_get_object_type_name(source_desc),
 				    acpi_ut_get_type_name(target_type)));
+
 			status = AE_AML_OPERAND_TYPE;
 		}
 		break;
@@ -275,7 +276,7 @@
 		/*
 		 * All other types come here.
 		 */
-		ACPI_WARNING((AE_INFO, "Store into type %s not implemented",
+		ACPI_WARNING((AE_INFO, "Store into type [%s] not implemented",
 			      acpi_ut_get_object_type_name(dest_desc)));
 
 		status = AE_NOT_IMPLEMENTED;
diff --git a/drivers/acpi/acpica/nsdump.c b/drivers/acpi/acpica/nsdump.c
index 0f1daba..37aa5c4 100644
--- a/drivers/acpi/acpica/nsdump.c
+++ b/drivers/acpi/acpica/nsdump.c
@@ -60,7 +60,6 @@
 
 #if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
 
-#ifdef	ACPI_FUTURE_USAGE
 static acpi_status
 acpi_ns_dump_one_object_path(acpi_handle obj_handle,
 			     u32 level, void *context, void **return_value);
@@ -68,7 +67,6 @@
 static acpi_status
 acpi_ns_get_max_depth(acpi_handle obj_handle,
 		      u32 level, void *context, void **return_value);
-#endif				/* ACPI_FUTURE_USAGE */
 
 /*******************************************************************************
  *
@@ -625,7 +623,6 @@
 	return (AE_OK);
 }
 
-#ifdef ACPI_FUTURE_USAGE
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ns_dump_objects
@@ -680,9 +677,7 @@
 
 	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 }
-#endif				/* ACPI_FUTURE_USAGE */
 
-#ifdef	ACPI_FUTURE_USAGE
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ns_dump_one_object_path, acpi_ns_get_max_depth
@@ -810,7 +805,6 @@
 
 	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 }
-#endif				/* ACPI_FUTURE_USAGE */
 
 /*******************************************************************************
  *
diff --git a/drivers/acpi/acpica/nspredef.c b/drivers/acpi/acpica/nspredef.c
index 0eb5431..0c20980 100644
--- a/drivers/acpi/acpica/nspredef.c
+++ b/drivers/acpi/acpica/nspredef.c
@@ -226,7 +226,7 @@
 {
 	union acpi_operand_object *return_object = *return_object_ptr;
 	acpi_status status = AE_OK;
-	char type_buffer[48];	/* Room for 5 types */
+	char type_buffer[96];	/* Room for 10 types */
 
 	/* A Namespace node should not get here, but make sure */
 
diff --git a/drivers/acpi/acpica/pstree.c b/drivers/acpi/acpica/pstree.c
index 89984f3..cf2f2fa 100644
--- a/drivers/acpi/acpica/pstree.c
+++ b/drivers/acpi/acpica/pstree.c
@@ -183,7 +183,6 @@
 	}
 }
 
-#ifdef ACPI_FUTURE_USAGE
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ps_get_depth_next
@@ -317,4 +316,3 @@
 	return (child);
 }
 #endif
-#endif				/*  ACPI_FUTURE_USAGE  */
diff --git a/drivers/acpi/acpica/psutils.c b/drivers/acpi/acpica/psutils.c
index 183cc1e..71d2877 100644
--- a/drivers/acpi/acpica/psutils.c
+++ b/drivers/acpi/acpica/psutils.c
@@ -205,7 +205,6 @@
 /*
  * Get op's name (4-byte name segment) or 0 if unnamed
  */
-#ifdef ACPI_FUTURE_USAGE
 u32 acpi_ps_get_name(union acpi_parse_object * op)
 {
 
@@ -219,7 +218,6 @@
 
 	return (op->named.name);
 }
-#endif				/*  ACPI_FUTURE_USAGE  */
 
 /*
  * Set op's name
diff --git a/drivers/acpi/acpica/rsdump.c b/drivers/acpi/acpica/rsdump.c
index c428bb3..2a09288 100644
--- a/drivers/acpi/acpica/rsdump.c
+++ b/drivers/acpi/acpica/rsdump.c
@@ -51,7 +51,6 @@
 /*
  * All functions in this module are used by the AML Debugger only
  */
-#if defined(ACPI_DEBUGGER)
 /* Local prototypes */
 static void acpi_rs_out_string(char *title, char *value);
 
@@ -565,5 +564,3 @@
 		acpi_os_printf("%25s%2.2X : %4.4X\n", "Word", i, data[i]);
 	}
 }
-
-#endif
diff --git a/drivers/acpi/acpica/rsutils.c b/drivers/acpi/acpica/rsutils.c
index 52b024d..9486992 100644
--- a/drivers/acpi/acpica/rsutils.c
+++ b/drivers/acpi/acpica/rsutils.c
@@ -564,7 +564,6 @@
  *
  ******************************************************************************/
 
-#ifdef ACPI_FUTURE_USAGE
 acpi_status
 acpi_rs_get_prs_method_data(struct acpi_namespace_node *node,
 			    struct acpi_buffer *ret_buffer)
@@ -596,7 +595,6 @@
 	acpi_ut_remove_reference(obj_desc);
 	return_ACPI_STATUS(status);
 }
-#endif				/*  ACPI_FUTURE_USAGE  */
 
 /*******************************************************************************
  *
diff --git a/drivers/acpi/acpica/rsxface.c b/drivers/acpi/acpica/rsxface.c
index de51f83..1e8cd57 100644
--- a/drivers/acpi/acpica/rsxface.c
+++ b/drivers/acpi/acpica/rsxface.c
@@ -220,7 +220,7 @@
 }
 
 ACPI_EXPORT_SYMBOL(acpi_get_current_resources)
-#ifdef ACPI_FUTURE_USAGE
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_get_possible_resources
@@ -262,7 +262,7 @@
 }
 
 ACPI_EXPORT_SYMBOL(acpi_get_possible_resources)
-#endif				/*  ACPI_FUTURE_USAGE  */
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_set_current_resources
diff --git a/drivers/acpi/acpica/tbfadt.c b/drivers/acpi/acpica/tbfadt.c
index 455a070..a6454f4 100644
--- a/drivers/acpi/acpica/tbfadt.c
+++ b/drivers/acpi/acpica/tbfadt.c
@@ -298,7 +298,7 @@
  *
  * FUNCTION:    acpi_tb_parse_fadt
  *
- * PARAMETERS:  table_index         - Index for the FADT
+ * PARAMETERS:  None
  *
  * RETURN:      None
  *
@@ -307,7 +307,7 @@
  *
  ******************************************************************************/
 
-void acpi_tb_parse_fadt(u32 table_index)
+void acpi_tb_parse_fadt(void)
 {
 	u32 length;
 	struct acpi_table_header *table;
@@ -319,11 +319,11 @@
 	 * Get a local copy of the FADT and convert it to a common format
 	 * Map entire FADT, assumed to be smaller than one page.
 	 */
-	length = acpi_gbl_root_table_list.tables[table_index].length;
+	length = acpi_gbl_root_table_list.tables[acpi_gbl_fadt_index].length;
 
 	table =
-	    acpi_os_map_memory(acpi_gbl_root_table_list.tables[table_index].
-			       address, length);
+	    acpi_os_map_memory(acpi_gbl_root_table_list.
+			       tables[acpi_gbl_fadt_index].address, length);
 	if (!table) {
 		return;
 	}
diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c
index 4337990..d8ddef3 100644
--- a/drivers/acpi/acpica/tbutils.c
+++ b/drivers/acpi/acpica/tbutils.c
@@ -99,29 +99,6 @@
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_tb_tables_loaded
- *
- * PARAMETERS:  None
- *
- * RETURN:      TRUE if required ACPI tables are loaded
- *
- * DESCRIPTION: Determine if the minimum required ACPI tables are present
- *              (FADT, FACS, DSDT)
- *
- ******************************************************************************/
-
-u8 acpi_tb_tables_loaded(void)
-{
-
-	if (acpi_gbl_root_table_list.current_table_count >= 4) {
-		return (TRUE);
-	}
-
-	return (FALSE);
-}
-
-/*******************************************************************************
- *
  * FUNCTION:    acpi_tb_check_dsdt_header
  *
  * PARAMETERS:  None
@@ -392,7 +369,8 @@
 		    ACPI_COMPARE_NAME(&acpi_gbl_root_table_list.
 				      tables[table_index].signature,
 				      ACPI_SIG_FADT)) {
-			acpi_tb_parse_fadt(table_index);
+			acpi_gbl_fadt_index = table_index;
+			acpi_tb_parse_fadt();
 		}
 
 next_table:
diff --git a/drivers/acpi/acpica/utdecode.c b/drivers/acpi/acpica/utdecode.c
index 988e23b..ecaaaff 100644
--- a/drivers/acpi/acpica/utdecode.c
+++ b/drivers/acpi/acpica/utdecode.c
@@ -232,12 +232,27 @@
 
 char *acpi_ut_get_object_type_name(union acpi_operand_object *obj_desc)
 {
+	ACPI_FUNCTION_TRACE(ut_get_object_type_name);
 
 	if (!obj_desc) {
-		return ("[NULL Object Descriptor]");
+		ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Null Object Descriptor\n"));
+		return_PTR("[NULL Object Descriptor]");
 	}
 
-	return (acpi_ut_get_type_name(obj_desc->common.type));
+	/* These descriptor types share a common area */
+
+	if ((ACPI_GET_DESCRIPTOR_TYPE(obj_desc) != ACPI_DESC_TYPE_OPERAND) &&
+	    (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) != ACPI_DESC_TYPE_NAMED)) {
+		ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+				  "Invalid object descriptor type: 0x%2.2X [%s] (%p)\n",
+				  ACPI_GET_DESCRIPTOR_TYPE(obj_desc),
+				  acpi_ut_get_descriptor_name(obj_desc),
+				  obj_desc));
+
+		return_PTR("Invalid object");
+	}
+
+	return_PTR(acpi_ut_get_type_name(obj_desc->common.type));
 }
 
 /*******************************************************************************
@@ -407,8 +422,6 @@
 	"ACPI_MTX_Events",
 	"ACPI_MTX_Caches",
 	"ACPI_MTX_Memory",
-	"ACPI_MTX_CommandComplete",
-	"ACPI_MTX_CommandReady"
 };
 
 char *acpi_ut_get_mutex_name(u32 mutex_id)
diff --git a/drivers/acpi/acpica/utfileio.c b/drivers/acpi/acpica/utfileio.c
index 75a94f5..d435b7b7 100644
--- a/drivers/acpi/acpica/utfileio.c
+++ b/drivers/acpi/acpica/utfileio.c
@@ -45,6 +45,7 @@
 #include "accommon.h"
 #include "actables.h"
 #include "acapps.h"
+#include "errno.h"
 
 #ifdef ACPI_ASL_COMPILER
 #include "aslcompiler.h"
@@ -301,6 +302,11 @@
 	file = fopen(filename, "rb");
 	if (!file) {
 		perror("Could not open input file");
+
+		if (errno == ENOENT) {
+			return (AE_NOT_EXIST);
+		}
+
 		return (status);
 	}
 
diff --git a/drivers/acpi/acpica/utinit.c b/drivers/acpi/acpica/utinit.c
index 28ab3a1..ccd0745 100644
--- a/drivers/acpi/acpica/utinit.c
+++ b/drivers/acpi/acpica/utinit.c
@@ -241,8 +241,6 @@
 	acpi_gbl_disable_mem_tracking = FALSE;
 #endif
 
-	ACPI_DEBUGGER_EXEC(acpi_gbl_db_terminate_threads = FALSE);
-
 	return_ACPI_STATUS(AE_OK);
 }
 
@@ -284,6 +282,19 @@
 {
 	ACPI_FUNCTION_TRACE(ut_subsystem_shutdown);
 
+	/* Just exit if subsystem is already shutdown */
+
+	if (acpi_gbl_shutdown) {
+		ACPI_ERROR((AE_INFO, "ACPI Subsystem is already terminated"));
+		return_VOID;
+	}
+
+	/* Subsystem appears active, go ahead and shut it down */
+
+	acpi_gbl_shutdown = TRUE;
+	acpi_gbl_startup_flags = 0;
+	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n"));
+
 #ifndef ACPI_ASL_COMPILER
 
 	/* Close the acpi_event Handling */
diff --git a/drivers/acpi/acpica/utmutex.c b/drivers/acpi/acpica/utmutex.c
index 37b8b58..ce406e3 100644
--- a/drivers/acpi/acpica/utmutex.c
+++ b/drivers/acpi/acpica/utmutex.c
@@ -108,6 +108,21 @@
 	/* Create the reader/writer lock for namespace access */
 
 	status = acpi_ut_create_rw_lock(&acpi_gbl_namespace_rw_lock);
+	if (ACPI_FAILURE(status)) {
+		return_ACPI_STATUS(status);
+	}
+#ifdef ACPI_DEBUGGER
+
+	/* Debugger Support */
+
+	status = acpi_os_create_mutex(&acpi_gbl_db_command_ready);
+	if (ACPI_FAILURE(status)) {
+		return_ACPI_STATUS(status);
+	}
+
+	status = acpi_os_create_mutex(&acpi_gbl_db_command_complete);
+#endif
+
 	return_ACPI_STATUS(status);
 }
 
@@ -147,6 +162,12 @@
 	/* Delete the reader/writer lock */
 
 	acpi_ut_delete_rw_lock(&acpi_gbl_namespace_rw_lock);
+
+#ifdef ACPI_DEBUGGER
+	acpi_os_delete_mutex(acpi_gbl_db_command_ready);
+	acpi_os_delete_mutex(acpi_gbl_db_command_complete);
+#endif
+
 	return_VOID;
 }
 
diff --git a/drivers/acpi/acpica/utxface.c b/drivers/acpi/acpica/utxface.c
index 4f33281..f9c8f9c 100644
--- a/drivers/acpi/acpica/utxface.c
+++ b/drivers/acpi/acpica/utxface.c
@@ -67,23 +67,6 @@
 
 	ACPI_FUNCTION_TRACE(acpi_terminate);
 
-	/* Just exit if subsystem is already shutdown */
-
-	if (acpi_gbl_shutdown) {
-		ACPI_ERROR((AE_INFO, "ACPI Subsystem is already terminated"));
-		return_ACPI_STATUS(AE_OK);
-	}
-
-	/* Subsystem appears active, go ahead and shut it down */
-
-	acpi_gbl_shutdown = TRUE;
-	acpi_gbl_startup_flags = 0;
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n"));
-
-	/* Terminate the AML Debugger if present */
-
-	ACPI_DEBUGGER_EXEC(acpi_gbl_db_terminate_threads = TRUE);
-
 	/* Shutdown and free all resources */
 
 	acpi_ut_subsystem_shutdown();
@@ -270,7 +253,7 @@
 }
 
 ACPI_EXPORT_SYMBOL(acpi_install_initialization_handler)
-#endif				/*  ACPI_FUTURE_USAGE  */
+#endif
 
 /*****************************************************************************
  *
diff --git a/drivers/acpi/device_sysfs.c b/drivers/acpi/device_sysfs.c
index 4ab4582..707cf62 100644
--- a/drivers/acpi/device_sysfs.c
+++ b/drivers/acpi/device_sysfs.c
@@ -26,6 +26,106 @@
 
 #include "internal.h"
 
+static ssize_t acpi_object_path(acpi_handle handle, char *buf)
+{
+	struct acpi_buffer path = {ACPI_ALLOCATE_BUFFER, NULL};
+	int result;
+
+	result = acpi_get_name(handle, ACPI_FULL_PATHNAME, &path);
+	if (result)
+		return result;
+
+	result = sprintf(buf, "%s\n", (char*)path.pointer);
+	kfree(path.pointer);
+	return result;
+}
+
+struct acpi_data_node_attr {
+	struct attribute attr;
+	ssize_t (*show)(struct acpi_data_node *, char *);
+	ssize_t (*store)(struct acpi_data_node *, const char *, size_t count);
+};
+
+#define DATA_NODE_ATTR(_name)			\
+	static struct acpi_data_node_attr data_node_##_name =	\
+		__ATTR(_name, 0444, data_node_show_##_name, NULL)
+
+static ssize_t data_node_show_path(struct acpi_data_node *dn, char *buf)
+{
+	return acpi_object_path(dn->handle, buf);
+}
+
+DATA_NODE_ATTR(path);
+
+static struct attribute *acpi_data_node_default_attrs[] = {
+	&data_node_path.attr,
+	NULL
+};
+
+#define to_data_node(k) container_of(k, struct acpi_data_node, kobj)
+#define to_attr(a) container_of(a, struct acpi_data_node_attr, attr)
+
+static ssize_t acpi_data_node_attr_show(struct kobject *kobj,
+					struct attribute *attr, char *buf)
+{
+	struct acpi_data_node *dn = to_data_node(kobj);
+	struct acpi_data_node_attr *dn_attr = to_attr(attr);
+
+	return dn_attr->show ? dn_attr->show(dn, buf) : -ENXIO;
+}
+
+static const struct sysfs_ops acpi_data_node_sysfs_ops = {
+	.show	= acpi_data_node_attr_show,
+};
+
+static void acpi_data_node_release(struct kobject *kobj)
+{
+	struct acpi_data_node *dn = to_data_node(kobj);
+	complete(&dn->kobj_done);
+}
+
+static struct kobj_type acpi_data_node_ktype = {
+	.sysfs_ops = &acpi_data_node_sysfs_ops,
+	.default_attrs = acpi_data_node_default_attrs,
+	.release = acpi_data_node_release,
+};
+
+static void acpi_expose_nondev_subnodes(struct kobject *kobj,
+					struct acpi_device_data *data)
+{
+	struct list_head *list = &data->subnodes;
+	struct acpi_data_node *dn;
+
+	if (list_empty(list))
+		return;
+
+	list_for_each_entry(dn, list, sibling) {
+		int ret;
+
+		init_completion(&dn->kobj_done);
+		ret = kobject_init_and_add(&dn->kobj, &acpi_data_node_ktype,
+					   kobj, dn->name);
+		if (ret)
+			acpi_handle_err(dn->handle, "Failed to expose (%d)\n", ret);
+		else
+			acpi_expose_nondev_subnodes(&dn->kobj, &dn->data);
+	}
+}
+
+static void acpi_hide_nondev_subnodes(struct acpi_device_data *data)
+{
+	struct list_head *list = &data->subnodes;
+	struct acpi_data_node *dn;
+
+	if (list_empty(list))
+		return;
+
+	list_for_each_entry_reverse(dn, list, sibling) {
+		acpi_hide_nondev_subnodes(&dn->data);
+		kobject_put(&dn->kobj);
+	}
+}
+
 /**
  * create_pnp_modalias - Create hid/cid(s) string for modalias and uevent
  * @acpi_dev: ACPI device object.
@@ -323,20 +423,12 @@
 }
 static DEVICE_ATTR(adr, 0444, acpi_device_adr_show, NULL);
 
-static ssize_t
-acpi_device_path_show(struct device *dev, struct device_attribute *attr, char *buf) {
+static ssize_t acpi_device_path_show(struct device *dev,
+				     struct device_attribute *attr, char *buf)
+{
 	struct acpi_device *acpi_dev = to_acpi_device(dev);
-	struct acpi_buffer path = {ACPI_ALLOCATE_BUFFER, NULL};
-	int result;
 
-	result = acpi_get_name(acpi_dev->handle, ACPI_FULL_PATHNAME, &path);
-	if (result)
-		goto end;
-
-	result = sprintf(buf, "%s\n", (char*)path.pointer);
-	kfree(path.pointer);
-end:
-	return result;
+	return acpi_object_path(acpi_dev->handle, buf);
 }
 static DEVICE_ATTR(path, 0444, acpi_device_path_show, NULL);
 
@@ -475,6 +567,8 @@
 						    &dev_attr_real_power_state);
 	}
 
+	acpi_expose_nondev_subnodes(&dev->dev.kobj, &dev->data);
+
 end:
 	return result;
 }
@@ -485,6 +579,8 @@
  */
 void acpi_device_remove_files(struct acpi_device *dev)
 {
+	acpi_hide_nondev_subnodes(&dev->data);
+
 	if (dev->flags.power_manageable) {
 		device_remove_file(&dev->dev, &dev_attr_power_state);
 		if (dev->power.flags.power_resources)
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 42c66b6..f61a7c8 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -441,17 +441,31 @@
 
 static bool acpi_ec_guard_event(struct acpi_ec *ec)
 {
+	bool guarded = true;
+	unsigned long flags;
+
+	spin_lock_irqsave(&ec->lock, flags);
+	/*
+	 * If firmware SCI_EVT clearing timing is "event", we actually
+	 * don't know when the SCI_EVT will be cleared by firmware after
+	 * evaluating _Qxx, so we need to re-check SCI_EVT after waiting an
+	 * acceptable period.
+	 *
+	 * The guarding period begins when EC_FLAGS_QUERY_PENDING is
+	 * flagged, which means SCI_EVT check has just been performed.
+	 * But if the current transaction is ACPI_EC_COMMAND_QUERY, the
+	 * guarding should have already been performed (via
+	 * EC_FLAGS_QUERY_GUARDING) and should not be applied so that the
+	 * ACPI_EC_COMMAND_QUERY transaction can be transitioned into
+	 * ACPI_EC_COMMAND_POLL state immediately.
+	 */
 	if (ec_event_clearing == ACPI_EC_EVT_TIMING_STATUS ||
 	    ec_event_clearing == ACPI_EC_EVT_TIMING_QUERY ||
 	    !test_bit(EC_FLAGS_QUERY_PENDING, &ec->flags) ||
 	    (ec->curr && ec->curr->command == ACPI_EC_COMMAND_QUERY))
-		return false;
-
-	/*
-	 * Postpone the query submission to allow the firmware to proceed,
-	 * we shouldn't check SCI_EVT before the firmware reflagging it.
-	 */
-	return true;
+		guarded = false;
+	spin_unlock_irqrestore(&ec->lock, flags);
+	return guarded;
 }
 
 static int ec_transaction_polled(struct acpi_ec *ec)
@@ -597,6 +611,7 @@
 	unsigned long guard = usecs_to_jiffies(ec_polling_guard);
 	unsigned long timeout = ec->timestamp + guard;
 
+	/* Ensure guarding period before polling EC status */
 	do {
 		if (ec_busy_polling) {
 			/* Perform busy polling */
@@ -606,11 +621,13 @@
 		} else {
 			/*
 			 * Perform wait polling
-			 *
-			 * For SCI_EVT clearing timing of "event",
-			 * performing guarding before re-checking the
-			 * SCI_EVT. Otherwise, such guarding is not needed
-			 * due to the old practices.
+			 * 1. Wait the transaction to be completed by the
+			 *    GPE handler after the transaction enters
+			 *    ACPI_EC_COMMAND_POLL state.
+			 * 2. A special guarding logic is also required
+			 *    for event clearing mode "event" before the
+			 *    transaction enters ACPI_EC_COMMAND_POLL
+			 *    state.
 			 */
 			if (!ec_transaction_polled(ec) &&
 			    !acpi_ec_guard_event(ec))
@@ -620,7 +637,6 @@
 					       guard))
 				return 0;
 		}
-		/* Guard the register accesses for the polling modes */
 	} while (time_before(jiffies, timeout));
 	return -ETIME;
 }
@@ -929,6 +945,23 @@
 	return handler;
 }
 
+static struct acpi_ec_query_handler *
+acpi_ec_get_query_handler_by_value(struct acpi_ec *ec, u8 value)
+{
+	struct acpi_ec_query_handler *handler;
+	bool found = false;
+
+	mutex_lock(&ec->mutex);
+	list_for_each_entry(handler, &ec->list, node) {
+		if (value == handler->query_bit) {
+			found = true;
+			break;
+		}
+	}
+	mutex_unlock(&ec->mutex);
+	return found ? acpi_ec_get_query_handler(handler) : NULL;
+}
+
 static void acpi_ec_query_handler_release(struct kref *kref)
 {
 	struct acpi_ec_query_handler *handler =
@@ -964,14 +997,15 @@
 }
 EXPORT_SYMBOL_GPL(acpi_ec_add_query_handler);
 
-void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit)
+static void acpi_ec_remove_query_handlers(struct acpi_ec *ec,
+					  bool remove_all, u8 query_bit)
 {
 	struct acpi_ec_query_handler *handler, *tmp;
 	LIST_HEAD(free_list);
 
 	mutex_lock(&ec->mutex);
 	list_for_each_entry_safe(handler, tmp, &ec->list, node) {
-		if (query_bit == handler->query_bit) {
+		if (remove_all || query_bit == handler->query_bit) {
 			list_del_init(&handler->node);
 			list_add(&handler->node, &free_list);
 		}
@@ -980,6 +1014,11 @@
 	list_for_each_entry_safe(handler, tmp, &free_list, node)
 		acpi_ec_put_query_handler(handler);
 }
+
+void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit)
+{
+	acpi_ec_remove_query_handlers(ec, false, query_bit);
+}
 EXPORT_SYMBOL_GPL(acpi_ec_remove_query_handler);
 
 static struct acpi_ec_query *acpi_ec_create_query(u8 *pval)
@@ -1025,7 +1064,6 @@
 {
 	u8 value = 0;
 	int result;
-	struct acpi_ec_query_handler *handler;
 	struct acpi_ec_query *q;
 
 	q = acpi_ec_create_query(&value);
@@ -1043,25 +1081,26 @@
 	if (result)
 		goto err_exit;
 
-	mutex_lock(&ec->mutex);
-	result = -ENODATA;
-	list_for_each_entry(handler, &ec->list, node) {
-		if (value == handler->query_bit) {
-			result = 0;
-			q->handler = acpi_ec_get_query_handler(handler);
-			ec_dbg_evt("Query(0x%02x) scheduled",
-				   q->handler->query_bit);
-			/*
-			 * It is reported that _Qxx are evaluated in a
-			 * parallel way on Windows:
-			 * https://bugzilla.kernel.org/show_bug.cgi?id=94411
-			 */
-			if (!schedule_work(&q->work))
-				result = -EBUSY;
-			break;
-		}
+	q->handler = acpi_ec_get_query_handler_by_value(ec, value);
+	if (!q->handler) {
+		result = -ENODATA;
+		goto err_exit;
 	}
-	mutex_unlock(&ec->mutex);
+
+	/*
+	 * It is reported that _Qxx are evaluated in a parallel way on
+	 * Windows:
+	 * https://bugzilla.kernel.org/show_bug.cgi?id=94411
+	 *
+	 * Put this log entry before schedule_work() in order to make
+	 * it appearing before any other log entries occurred during the
+	 * work queue execution.
+	 */
+	ec_dbg_evt("Query(0x%02x) scheduled", value);
+	if (!schedule_work(&q->work)) {
+		ec_dbg_evt("Query(0x%02x) overlapped", value);
+		result = -EBUSY;
+	}
 
 err_exit:
 	if (result && q)
@@ -1354,19 +1393,13 @@
 static int acpi_ec_remove(struct acpi_device *device)
 {
 	struct acpi_ec *ec;
-	struct acpi_ec_query_handler *handler, *tmp;
 
 	if (!device)
 		return -EINVAL;
 
 	ec = acpi_driver_data(device);
 	ec_remove_handlers(ec);
-	mutex_lock(&ec->mutex);
-	list_for_each_entry_safe(handler, tmp, &ec->list, node) {
-		list_del(&handler->node);
-		kfree(handler);
-	}
-	mutex_unlock(&ec->mutex);
+	acpi_ec_remove_query_handlers(ec, true, 0);
 	release_region(ec->data_addr, 1);
 	release_region(ec->command_addr, 1);
 	device->driver_data = NULL;
diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c
index b9657af..1470ae4 100644
--- a/drivers/acpi/glue.c
+++ b/drivers/acpi/glue.c
@@ -351,13 +351,12 @@
 	return 0;
 }
 
-int __init init_acpi_device_notify(void)
+void __init init_acpi_device_notify(void)
 {
 	if (platform_notify || platform_notify_remove) {
 		printk(KERN_ERR PREFIX "Can't use platform_notify\n");
-		return 0;
+		return;
 	}
 	platform_notify = acpi_platform_notify;
 	platform_notify_remove = acpi_platform_notify_remove;
-	return 0;
 }
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 9e42621..c31787b 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -21,7 +21,7 @@
 #define PREFIX "ACPI: "
 
 acpi_status acpi_os_initialize1(void);
-int init_acpi_device_notify(void);
+void init_acpi_device_notify(void);
 int acpi_scan_init(void);
 void acpi_pci_root_init(void);
 void acpi_pci_link_init(void);
@@ -179,13 +179,13 @@
 #endif
 
 #ifdef CONFIG_ACPI_SLEEP
-int acpi_sleep_proc_init(void);
+void acpi_sleep_proc_init(void);
 int suspend_nvs_alloc(void);
 void suspend_nvs_free(void);
 int suspend_nvs_save(void);
 void suspend_nvs_restore(void);
 #else
-static inline int acpi_sleep_proc_init(void) { return 0; }
+static inline void acpi_sleep_proc_init(void) {}
 static inline int suspend_nvs_alloc(void) { return 0; }
 static inline void suspend_nvs_free(void) {}
 static inline int suspend_nvs_save(void) { return 0; }
diff --git a/drivers/acpi/nfit.c b/drivers/acpi/nfit.c
index c1b8d03..bc18aa2 100644
--- a/drivers/acpi/nfit.c
+++ b/drivers/acpi/nfit.c
@@ -706,7 +706,7 @@
 		flags & ACPI_NFIT_MEM_SAVE_FAILED ? "save_fail " : "",
 		flags & ACPI_NFIT_MEM_RESTORE_FAILED ? "restore_fail " : "",
 		flags & ACPI_NFIT_MEM_FLUSH_FAILED ? "flush_fail " : "",
-		flags & ACPI_NFIT_MEM_ARMED ? "not_armed " : "",
+		flags & ACPI_NFIT_MEM_NOT_ARMED ? "not_armed " : "",
 		flags & ACPI_NFIT_MEM_HEALTH_OBSERVED ? "smart_event " : "");
 }
 static DEVICE_ATTR_RO(flags);
@@ -815,7 +815,7 @@
 			flags |= NDD_ALIASING;
 
 		mem_flags = __to_nfit_memdev(nfit_mem)->flags;
-		if (mem_flags & ACPI_NFIT_MEM_ARMED)
+		if (mem_flags & ACPI_NFIT_MEM_NOT_ARMED)
 			flags |= NDD_UNARMED;
 
 		rc = acpi_nfit_add_dimm(acpi_desc, nfit_mem, device_handle);
@@ -839,7 +839,7 @@
 		  mem_flags & ACPI_NFIT_MEM_SAVE_FAILED ? " save_fail" : "",
 		  mem_flags & ACPI_NFIT_MEM_RESTORE_FAILED ? " restore_fail":"",
 		  mem_flags & ACPI_NFIT_MEM_FLUSH_FAILED ? " flush_fail" : "",
-		  mem_flags & ACPI_NFIT_MEM_ARMED ? " not_armed" : "");
+		  mem_flags & ACPI_NFIT_MEM_NOT_ARMED ? " not_armed" : "");
 
 	}
 
diff --git a/drivers/acpi/nfit.h b/drivers/acpi/nfit.h
index 7e74015..329a1eb 100644
--- a/drivers/acpi/nfit.h
+++ b/drivers/acpi/nfit.h
@@ -24,7 +24,7 @@
 #define UUID_NFIT_DIMM "4309ac30-0d11-11e4-9191-0800200c9a66"
 #define ACPI_NFIT_MEM_FAILED_MASK (ACPI_NFIT_MEM_SAVE_FAILED \
 		| ACPI_NFIT_MEM_RESTORE_FAILED | ACPI_NFIT_MEM_FLUSH_FAILED \
-		| ACPI_NFIT_MEM_ARMED)
+		| ACPI_NFIT_MEM_NOT_ARMED)
 
 enum nfit_uuids {
 	NFIT_SPA_VOLATILE,
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 739a4a6..3272915 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -66,8 +66,6 @@
 /* stuff for debugger support */
 int acpi_in_debugger;
 EXPORT_SYMBOL(acpi_in_debugger);
-
-extern char line_buf[80];
 #endif				/*ENABLE_DEBUGGER */
 
 static int (*__acpi_os_prepare_sleep)(u8 sleep_state, u32 pm1a_ctrl,
@@ -1345,15 +1343,13 @@
 	return AE_OK;
 }
 
-#ifdef ACPI_FUTURE_USAGE
-u32 acpi_os_get_line(char *buffer)
+acpi_status acpi_os_get_line(char *buffer, u32 buffer_length, u32 *bytes_read)
 {
-
 #ifdef ENABLE_DEBUGGER
 	if (acpi_in_debugger) {
 		u32 chars;
 
-		kdb_read(buffer, sizeof(line_buf));
+		kdb_read(buffer, buffer_length);
 
 		/* remove the CR kdb includes */
 		chars = strlen(buffer) - 1;
@@ -1361,9 +1357,8 @@
 	}
 #endif
 
-	return 0;
+	return AE_OK;
 }
-#endif				/*  ACPI_FUTURE_USAGE  */
 
 acpi_status acpi_os_signal(u32 function, void *info)
 {
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 393706a..850d7bf 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -652,6 +652,210 @@
 	kfree(root);
 }
 
+/*
+ * Following code to support acpi_pci_root_create() is copied from
+ * arch/x86/pci/acpi.c and modified so it could be reused by x86, IA64
+ * and ARM64.
+ */
+static void acpi_pci_root_validate_resources(struct device *dev,
+					     struct list_head *resources,
+					     unsigned long type)
+{
+	LIST_HEAD(list);
+	struct resource *res1, *res2, *root = NULL;
+	struct resource_entry *tmp, *entry, *entry2;
+
+	BUG_ON((type & (IORESOURCE_MEM | IORESOURCE_IO)) == 0);
+	root = (type & IORESOURCE_MEM) ? &iomem_resource : &ioport_resource;
+
+	list_splice_init(resources, &list);
+	resource_list_for_each_entry_safe(entry, tmp, &list) {
+		bool free = false;
+		resource_size_t end;
+
+		res1 = entry->res;
+		if (!(res1->flags & type))
+			goto next;
+
+		/* Exclude non-addressable range or non-addressable portion */
+		end = min(res1->end, root->end);
+		if (end <= res1->start) {
+			dev_info(dev, "host bridge window %pR (ignored, not CPU addressable)\n",
+				 res1);
+			free = true;
+			goto next;
+		} else if (res1->end != end) {
+			dev_info(dev, "host bridge window %pR ([%#llx-%#llx] ignored, not CPU addressable)\n",
+				 res1, (unsigned long long)end + 1,
+				 (unsigned long long)res1->end);
+			res1->end = end;
+		}
+
+		resource_list_for_each_entry(entry2, resources) {
+			res2 = entry2->res;
+			if (!(res2->flags & type))
+				continue;
+
+			/*
+			 * I don't like throwing away windows because then
+			 * our resources no longer match the ACPI _CRS, but
+			 * the kernel resource tree doesn't allow overlaps.
+			 */
+			if (resource_overlaps(res1, res2)) {
+				res2->start = min(res1->start, res2->start);
+				res2->end = max(res1->end, res2->end);
+				dev_info(dev, "host bridge window expanded to %pR; %pR ignored\n",
+					 res2, res1);
+				free = true;
+				goto next;
+			}
+		}
+
+next:
+		resource_list_del(entry);
+		if (free)
+			resource_list_free_entry(entry);
+		else
+			resource_list_add_tail(entry, resources);
+	}
+}
+
+int acpi_pci_probe_root_resources(struct acpi_pci_root_info *info)
+{
+	int ret;
+	struct list_head *list = &info->resources;
+	struct acpi_device *device = info->bridge;
+	struct resource_entry *entry, *tmp;
+	unsigned long flags;
+
+	flags = IORESOURCE_IO | IORESOURCE_MEM | IORESOURCE_MEM_8AND16BIT;
+	ret = acpi_dev_get_resources(device, list,
+				     acpi_dev_filter_resource_type_cb,
+				     (void *)flags);
+	if (ret < 0)
+		dev_warn(&device->dev,
+			 "failed to parse _CRS method, error code %d\n", ret);
+	else if (ret == 0)
+		dev_dbg(&device->dev,
+			"no IO and memory resources present in _CRS\n");
+	else {
+		resource_list_for_each_entry_safe(entry, tmp, list) {
+			if (entry->res->flags & IORESOURCE_DISABLED)
+				resource_list_destroy_entry(entry);
+			else
+				entry->res->name = info->name;
+		}
+		acpi_pci_root_validate_resources(&device->dev, list,
+						 IORESOURCE_MEM);
+		acpi_pci_root_validate_resources(&device->dev, list,
+						 IORESOURCE_IO);
+	}
+
+	return ret;
+}
+
+static void pci_acpi_root_add_resources(struct acpi_pci_root_info *info)
+{
+	struct resource_entry *entry, *tmp;
+	struct resource *res, *conflict, *root = NULL;
+
+	resource_list_for_each_entry_safe(entry, tmp, &info->resources) {
+		res = entry->res;
+		if (res->flags & IORESOURCE_MEM)
+			root = &iomem_resource;
+		else if (res->flags & IORESOURCE_IO)
+			root = &ioport_resource;
+		else
+			continue;
+
+		conflict = insert_resource_conflict(root, res);
+		if (conflict) {
+			dev_info(&info->bridge->dev,
+				 "ignoring host bridge window %pR (conflicts with %s %pR)\n",
+				 res, conflict->name, conflict);
+			resource_list_destroy_entry(entry);
+		}
+	}
+}
+
+static void __acpi_pci_root_release_info(struct acpi_pci_root_info *info)
+{
+	struct resource *res;
+	struct resource_entry *entry, *tmp;
+
+	if (!info)
+		return;
+
+	resource_list_for_each_entry_safe(entry, tmp, &info->resources) {
+		res = entry->res;
+		if (res->parent &&
+		    (res->flags & (IORESOURCE_MEM | IORESOURCE_IO)))
+			release_resource(res);
+		resource_list_destroy_entry(entry);
+	}
+
+	info->ops->release_info(info);
+}
+
+static void acpi_pci_root_release_info(struct pci_host_bridge *bridge)
+{
+	struct resource *res;
+	struct resource_entry *entry;
+
+	resource_list_for_each_entry(entry, &bridge->windows) {
+		res = entry->res;
+		if (res->parent &&
+		    (res->flags & (IORESOURCE_MEM | IORESOURCE_IO)))
+			release_resource(res);
+	}
+	__acpi_pci_root_release_info(bridge->release_data);
+}
+
+struct pci_bus *acpi_pci_root_create(struct acpi_pci_root *root,
+				     struct acpi_pci_root_ops *ops,
+				     struct acpi_pci_root_info *info,
+				     void *sysdata)
+{
+	int ret, busnum = root->secondary.start;
+	struct acpi_device *device = root->device;
+	int node = acpi_get_node(device->handle);
+	struct pci_bus *bus;
+
+	info->root = root;
+	info->bridge = device;
+	info->ops = ops;
+	INIT_LIST_HEAD(&info->resources);
+	snprintf(info->name, sizeof(info->name), "PCI Bus %04x:%02x",
+		 root->segment, busnum);
+
+	if (ops->init_info && ops->init_info(info))
+		goto out_release_info;
+	if (ops->prepare_resources)
+		ret = ops->prepare_resources(info);
+	else
+		ret = acpi_pci_probe_root_resources(info);
+	if (ret < 0)
+		goto out_release_info;
+
+	pci_acpi_root_add_resources(info);
+	pci_add_resource(&info->resources, &root->secondary);
+	bus = pci_create_root_bus(NULL, busnum, ops->pci_ops,
+				  sysdata, &info->resources);
+	if (!bus)
+		goto out_release_info;
+
+	pci_scan_child_bus(bus);
+	pci_set_host_bridge_release(to_pci_host_bridge(bus->bridge),
+				    acpi_pci_root_release_info, info);
+	if (node != NUMA_NO_NODE)
+		dev_printk(KERN_DEBUG, &bus->dev, "on NUMA node %d\n", node);
+	return bus;
+
+out_release_info:
+	__acpi_pci_root_release_info(info);
+	return NULL;
+}
+
 void __init acpi_pci_root_init(void)
 {
 	acpi_hest_init();
diff --git a/drivers/acpi/proc.c b/drivers/acpi/proc.c
index 75c28ea..2a35815 100644
--- a/drivers/acpi/proc.c
+++ b/drivers/acpi/proc.c
@@ -144,11 +144,9 @@
 	.release = single_release,
 };
 
-int __init acpi_sleep_proc_init(void)
+void __init acpi_sleep_proc_init(void)
 {
 	/* 'wakeup device' [R/W] */
 	proc_create("wakeup", S_IFREG | S_IRUGO | S_IWUSR,
 		    acpi_root_dir, &acpi_system_wakeup_device_fops);
-
-	return 0;
 }
diff --git a/drivers/acpi/property.c b/drivers/acpi/property.c
index 6d99450..88f4306 100644
--- a/drivers/acpi/property.c
+++ b/drivers/acpi/property.c
@@ -19,11 +19,133 @@
 
 #include "internal.h"
 
+static int acpi_data_get_property_array(struct acpi_device_data *data,
+					const char *name,
+					acpi_object_type type,
+					const union acpi_object **obj);
+
 /* ACPI _DSD device properties UUID: daffd814-6eba-4d8c-8a91-bc9bbf4aa301 */
 static const u8 prp_uuid[16] = {
 	0x14, 0xd8, 0xff, 0xda, 0xba, 0x6e, 0x8c, 0x4d,
 	0x8a, 0x91, 0xbc, 0x9b, 0xbf, 0x4a, 0xa3, 0x01
 };
+/* ACPI _DSD data subnodes UUID: dbb8e3e6-5886-4ba6-8795-1319f52a966b */
+static const u8 ads_uuid[16] = {
+	0xe6, 0xe3, 0xb8, 0xdb, 0x86, 0x58, 0xa6, 0x4b,
+	0x87, 0x95, 0x13, 0x19, 0xf5, 0x2a, 0x96, 0x6b
+};
+
+static bool acpi_enumerate_nondev_subnodes(acpi_handle scope,
+					   const union acpi_object *desc,
+					   struct acpi_device_data *data);
+static bool acpi_extract_properties(const union acpi_object *desc,
+				    struct acpi_device_data *data);
+
+static bool acpi_nondev_subnode_ok(acpi_handle scope,
+				   const union acpi_object *link,
+				   struct list_head *list)
+{
+	struct acpi_buffer buf = { ACPI_ALLOCATE_BUFFER };
+	struct acpi_data_node *dn;
+	acpi_handle handle;
+	acpi_status status;
+
+	dn = kzalloc(sizeof(*dn), GFP_KERNEL);
+	if (!dn)
+		return false;
+
+	dn->name = link->package.elements[0].string.pointer;
+	dn->fwnode.type = FWNODE_ACPI_DATA;
+	INIT_LIST_HEAD(&dn->data.subnodes);
+
+	status = acpi_get_handle(scope, link->package.elements[1].string.pointer,
+				 &handle);
+	if (ACPI_FAILURE(status))
+		goto fail;
+
+	status = acpi_evaluate_object_typed(handle, NULL, NULL, &buf,
+					    ACPI_TYPE_PACKAGE);
+	if (ACPI_FAILURE(status))
+		goto fail;
+
+	if (acpi_extract_properties(buf.pointer, &dn->data))
+		dn->handle = handle;
+
+	/*
+	 * The scope for the subnode object lookup is the one of the namespace
+	 * node (device) containing the object that has returned the package.
+	 * That is, it's the scope of that object's parent.
+	 */
+	status = acpi_get_parent(handle, &scope);
+	if (ACPI_SUCCESS(status)
+	    && acpi_enumerate_nondev_subnodes(scope, buf.pointer, &dn->data))
+		dn->handle = handle;
+
+	if (dn->handle) {
+		dn->data.pointer = buf.pointer;
+		list_add_tail(&dn->sibling, list);
+		return true;
+	}
+
+	acpi_handle_debug(handle, "Invalid properties/subnodes data, skipping\n");
+
+ fail:
+	ACPI_FREE(buf.pointer);
+	kfree(dn);
+	return false;
+}
+
+static int acpi_add_nondev_subnodes(acpi_handle scope,
+				    const union acpi_object *links,
+				    struct list_head *list)
+{
+	bool ret = false;
+	int i;
+
+	for (i = 0; i < links->package.count; i++) {
+		const union acpi_object *link;
+
+		link = &links->package.elements[i];
+		/* Only two elements allowed, both must be strings. */
+		if (link->package.count == 2
+		    && link->package.elements[0].type == ACPI_TYPE_STRING
+		    && link->package.elements[1].type == ACPI_TYPE_STRING
+		    && acpi_nondev_subnode_ok(scope, link, list))
+			ret = true;
+	}
+
+	return ret;
+}
+
+static bool acpi_enumerate_nondev_subnodes(acpi_handle scope,
+					   const union acpi_object *desc,
+					   struct acpi_device_data *data)
+{
+	int i;
+
+	/* Look for the ACPI data subnodes UUID. */
+	for (i = 0; i < desc->package.count; i += 2) {
+		const union acpi_object *uuid, *links;
+
+		uuid = &desc->package.elements[i];
+		links = &desc->package.elements[i + 1];
+
+		/*
+		 * The first element must be a UUID and the second one must be
+		 * a package.
+		 */
+		if (uuid->type != ACPI_TYPE_BUFFER || uuid->buffer.length != 16
+		    || links->type != ACPI_TYPE_PACKAGE)
+			break;
+
+		if (memcmp(uuid->buffer.pointer, ads_uuid, sizeof(ads_uuid)))
+			continue;
+
+		return acpi_add_nondev_subnodes(scope, links, &data->subnodes);
+	}
+
+	return false;
+}
 
 static bool acpi_property_value_ok(const union acpi_object *value)
 {
@@ -81,8 +203,8 @@
 	const union acpi_object *of_compatible;
 	int ret;
 
-	ret = acpi_dev_get_property_array(adev, "compatible", ACPI_TYPE_STRING,
-					  &of_compatible);
+	ret = acpi_data_get_property_array(&adev->data, "compatible",
+					   ACPI_TYPE_STRING, &of_compatible);
 	if (ret) {
 		ret = acpi_dev_get_property(adev, "compatible",
 					    ACPI_TYPE_STRING, &of_compatible);
@@ -100,34 +222,13 @@
 	adev->flags.of_compatible_ok = 1;
 }
 
-void acpi_init_properties(struct acpi_device *adev)
+static bool acpi_extract_properties(const union acpi_object *desc,
+				    struct acpi_device_data *data)
 {
-	struct acpi_buffer buf = { ACPI_ALLOCATE_BUFFER };
-	bool acpi_of = false;
-	struct acpi_hardware_id *hwid;
-	const union acpi_object *desc;
-	acpi_status status;
 	int i;
 
-	/*
-	 * Check if ACPI_DT_NAMESPACE_HID is present and inthat case we fill in
-	 * Device Tree compatible properties for this device.
-	 */
-	list_for_each_entry(hwid, &adev->pnp.ids, list) {
-		if (!strcmp(hwid->id, ACPI_DT_NAMESPACE_HID)) {
-			acpi_of = true;
-			break;
-		}
-	}
-
-	status = acpi_evaluate_object_typed(adev->handle, "_DSD", NULL, &buf,
-					    ACPI_TYPE_PACKAGE);
-	if (ACPI_FAILURE(status))
-		goto out;
-
-	desc = buf.pointer;
 	if (desc->package.count % 2)
-		goto fail;
+		return false;
 
 	/* Look for the device properties UUID. */
 	for (i = 0; i < desc->package.count; i += 2) {
@@ -154,18 +255,50 @@
 		if (!acpi_properties_format_valid(properties))
 			break;
 
-		adev->data.pointer = buf.pointer;
-		adev->data.properties = properties;
-
-		if (acpi_of)
-			acpi_init_of_compatible(adev);
-
-		goto out;
+		data->properties = properties;
+		return true;
 	}
 
- fail:
-	dev_dbg(&adev->dev, "Returned _DSD data is not valid, skipping\n");
-	ACPI_FREE(buf.pointer);
+	return false;
+}
+
+void acpi_init_properties(struct acpi_device *adev)
+{
+	struct acpi_buffer buf = { ACPI_ALLOCATE_BUFFER };
+	struct acpi_hardware_id *hwid;
+	acpi_status status;
+	bool acpi_of = false;
+
+	INIT_LIST_HEAD(&adev->data.subnodes);
+
+	/*
+	 * Check if ACPI_DT_NAMESPACE_HID is present and inthat case we fill in
+	 * Device Tree compatible properties for this device.
+	 */
+	list_for_each_entry(hwid, &adev->pnp.ids, list) {
+		if (!strcmp(hwid->id, ACPI_DT_NAMESPACE_HID)) {
+			acpi_of = true;
+			break;
+		}
+	}
+
+	status = acpi_evaluate_object_typed(adev->handle, "_DSD", NULL, &buf,
+					    ACPI_TYPE_PACKAGE);
+	if (ACPI_FAILURE(status))
+		goto out;
+
+	if (acpi_extract_properties(buf.pointer, &adev->data)) {
+		adev->data.pointer = buf.pointer;
+		if (acpi_of)
+			acpi_init_of_compatible(adev);
+	}
+	if (acpi_enumerate_nondev_subnodes(adev->handle, buf.pointer, &adev->data))
+		adev->data.pointer = buf.pointer;
+
+	if (!adev->data.pointer) {
+		acpi_handle_debug(adev->handle, "Invalid _DSD data, skipping\n");
+		ACPI_FREE(buf.pointer);
+	}
 
  out:
 	if (acpi_of && !adev->flags.of_compatible_ok)
@@ -173,8 +306,25 @@
 			 ACPI_DT_NAMESPACE_HID " requires 'compatible' property\n");
 }
 
+static void acpi_destroy_nondev_subnodes(struct list_head *list)
+{
+	struct acpi_data_node *dn, *next;
+
+	if (list_empty(list))
+		return;
+
+	list_for_each_entry_safe_reverse(dn, next, list, sibling) {
+		acpi_destroy_nondev_subnodes(&dn->data.subnodes);
+		wait_for_completion(&dn->kobj_done);
+		list_del(&dn->sibling);
+		ACPI_FREE((void *)dn->data.pointer);
+		kfree(dn);
+	}
+}
+
 void acpi_free_properties(struct acpi_device *adev)
 {
+	acpi_destroy_nondev_subnodes(&adev->data.subnodes);
 	ACPI_FREE((void *)adev->data.pointer);
 	adev->data.of_compatible = NULL;
 	adev->data.pointer = NULL;
@@ -182,8 +332,8 @@
 }
 
 /**
- * acpi_dev_get_property - return an ACPI property with given name
- * @adev: ACPI device to get property
+ * acpi_data_get_property - return an ACPI property with given name
+ * @data: ACPI device deta object to get the property from
  * @name: Name of the property
  * @type: Expected property type
  * @obj: Location to store the property value (if not %NULL)
@@ -192,26 +342,27 @@
  * object at the location pointed to by @obj if found.
  *
  * Callers must not attempt to free the returned objects.  These objects will be
- * freed by the ACPI core automatically during the removal of @adev.
+ * freed by the ACPI core automatically during the removal of @data.
  *
  * Return: %0 if property with @name has been found (success),
  *         %-EINVAL if the arguments are invalid,
  *         %-ENODATA if the property doesn't exist,
  *         %-EPROTO if the property value type doesn't match @type.
  */
-int acpi_dev_get_property(struct acpi_device *adev, const char *name,
-			  acpi_object_type type, const union acpi_object **obj)
+static int acpi_data_get_property(struct acpi_device_data *data,
+				  const char *name, acpi_object_type type,
+				  const union acpi_object **obj)
 {
 	const union acpi_object *properties;
 	int i;
 
-	if (!adev || !name)
+	if (!data || !name)
 		return -EINVAL;
 
-	if (!adev->data.pointer || !adev->data.properties)
+	if (!data->pointer || !data->properties)
 		return -ENODATA;
 
-	properties = adev->data.properties;
+	properties = data->properties;
 	for (i = 0; i < properties->package.count; i++) {
 		const union acpi_object *propname, *propvalue;
 		const union acpi_object *property;
@@ -232,11 +383,50 @@
 	}
 	return -ENODATA;
 }
-EXPORT_SYMBOL_GPL(acpi_dev_get_property);
 
 /**
- * acpi_dev_get_property_array - return an ACPI array property with given name
- * @adev: ACPI device to get property
+ * acpi_dev_get_property - return an ACPI property with given name.
+ * @adev: ACPI device to get the property from.
+ * @name: Name of the property.
+ * @type: Expected property type.
+ * @obj: Location to store the property value (if not %NULL).
+ */
+int acpi_dev_get_property(struct acpi_device *adev, const char *name,
+			  acpi_object_type type, const union acpi_object **obj)
+{
+	return adev ? acpi_data_get_property(&adev->data, name, type, obj) : -EINVAL;
+}
+EXPORT_SYMBOL_GPL(acpi_dev_get_property);
+
+static struct acpi_device_data *acpi_device_data_of_node(struct fwnode_handle *fwnode)
+{
+	if (fwnode->type == FWNODE_ACPI) {
+		struct acpi_device *adev = to_acpi_device_node(fwnode);
+		return &adev->data;
+	} else if (fwnode->type == FWNODE_ACPI_DATA) {
+		struct acpi_data_node *dn = to_acpi_data_node(fwnode);
+		return &dn->data;
+	}
+	return NULL;
+}
+
+/**
+ * acpi_node_prop_get - return an ACPI property with given name.
+ * @fwnode: Firmware node to get the property from.
+ * @propname: Name of the property.
+ * @valptr: Location to store a pointer to the property value (if not %NULL).
+ */
+int acpi_node_prop_get(struct fwnode_handle *fwnode, const char *propname,
+		       void **valptr)
+{
+	return acpi_data_get_property(acpi_device_data_of_node(fwnode),
+				      propname, ACPI_TYPE_ANY,
+				      (const union acpi_object **)valptr);
+}
+
+/**
+ * acpi_data_get_property_array - return an ACPI array property with given name
+ * @adev: ACPI data object to get the property from
  * @name: Name of the property
  * @type: Expected type of array elements
  * @obj: Location to store a pointer to the property value (if not NULL)
@@ -245,7 +435,7 @@
  * ACPI object at the location pointed to by @obj if found.
  *
  * Callers must not attempt to free the returned objects.  Those objects will be
- * freed by the ACPI core automatically during the removal of @adev.
+ * freed by the ACPI core automatically during the removal of @data.
  *
  * Return: %0 if array property (package) with @name has been found (success),
  *         %-EINVAL if the arguments are invalid,
@@ -253,14 +443,15 @@
  *         %-EPROTO if the property is not a package or the type of its elements
  *           doesn't match @type.
  */
-int acpi_dev_get_property_array(struct acpi_device *adev, const char *name,
-				acpi_object_type type,
-				const union acpi_object **obj)
+static int acpi_data_get_property_array(struct acpi_device_data *data,
+					const char *name,
+					acpi_object_type type,
+					const union acpi_object **obj)
 {
 	const union acpi_object *prop;
 	int ret, i;
 
-	ret = acpi_dev_get_property(adev, name, ACPI_TYPE_PACKAGE, &prop);
+	ret = acpi_data_get_property(data, name, ACPI_TYPE_PACKAGE, &prop);
 	if (ret)
 		return ret;
 
@@ -275,12 +466,11 @@
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(acpi_dev_get_property_array);
 
 /**
- * acpi_dev_get_property_reference - returns handle to the referenced object
- * @adev: ACPI device to get property
- * @name: Name of the property
+ * acpi_data_get_property_reference - returns handle to the referenced object
+ * @data: ACPI device data object containing the property
+ * @propname: Name of the property
  * @index: Index of the reference to return
  * @args: Location to store the returned reference with optional arguments
  *
@@ -294,16 +484,16 @@
  *
  * Return: %0 on success, negative error code on failure.
  */
-int acpi_dev_get_property_reference(struct acpi_device *adev,
-				    const char *name, size_t index,
-				    struct acpi_reference_args *args)
+static int acpi_data_get_property_reference(struct acpi_device_data *data,
+					    const char *propname, size_t index,
+					    struct acpi_reference_args *args)
 {
 	const union acpi_object *element, *end;
 	const union acpi_object *obj;
 	struct acpi_device *device;
 	int ret, idx = 0;
 
-	ret = acpi_dev_get_property(adev, name, ACPI_TYPE_ANY, &obj);
+	ret = acpi_data_get_property(data, propname, ACPI_TYPE_ANY, &obj);
 	if (ret)
 		return ret;
 
@@ -378,17 +568,27 @@
 
 	return -EPROTO;
 }
-EXPORT_SYMBOL_GPL(acpi_dev_get_property_reference);
 
-int acpi_dev_prop_get(struct acpi_device *adev, const char *propname,
-		      void **valptr)
+/**
+ * acpi_node_get_property_reference - get a handle to the referenced object.
+ * @fwnode: Firmware node to get the property from.
+ * @propname: Name of the property.
+ * @index: Index of the reference to return.
+ * @args: Location to store the returned reference with optional arguments.
+ */
+int acpi_node_get_property_reference(struct fwnode_handle *fwnode,
+				     const char *name, size_t index,
+				     struct acpi_reference_args *args)
 {
-	return acpi_dev_get_property(adev, propname, ACPI_TYPE_ANY,
-				     (const union acpi_object **)valptr);
-}
+	struct acpi_device_data *data = acpi_device_data_of_node(fwnode);
 
-int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname,
-			      enum dev_prop_type proptype, void *val)
+	return data ? acpi_data_get_property_reference(data, name, index, args) : -EINVAL;
+}
+EXPORT_SYMBOL_GPL(acpi_node_get_property_reference);
+
+static int acpi_data_prop_read_single(struct acpi_device_data *data,
+				      const char *propname,
+				      enum dev_prop_type proptype, void *val)
 {
 	const union acpi_object *obj;
 	int ret;
@@ -397,7 +597,7 @@
 		return -EINVAL;
 
 	if (proptype >= DEV_PROP_U8 && proptype <= DEV_PROP_U64) {
-		ret = acpi_dev_get_property(adev, propname, ACPI_TYPE_INTEGER, &obj);
+		ret = acpi_data_get_property(data, propname, ACPI_TYPE_INTEGER, &obj);
 		if (ret)
 			return ret;
 
@@ -422,7 +622,7 @@
 			break;
 		}
 	} else if (proptype == DEV_PROP_STRING) {
-		ret = acpi_dev_get_property(adev, propname, ACPI_TYPE_STRING, &obj);
+		ret = acpi_data_get_property(data, propname, ACPI_TYPE_STRING, &obj);
 		if (ret)
 			return ret;
 
@@ -433,6 +633,12 @@
 	return ret;
 }
 
+int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname,
+			      enum dev_prop_type proptype, void *val)
+{
+	return adev ? acpi_data_prop_read_single(&adev->data, propname, proptype, val) : -EINVAL;
+}
+
 static int acpi_copy_property_array_u8(const union acpi_object *items, u8 *val,
 				       size_t nval)
 {
@@ -509,20 +715,22 @@
 	return 0;
 }
 
-int acpi_dev_prop_read(struct acpi_device *adev, const char *propname,
-		       enum dev_prop_type proptype, void *val, size_t nval)
+static int acpi_data_prop_read(struct acpi_device_data *data,
+			       const char *propname,
+			       enum dev_prop_type proptype,
+			       void *val, size_t nval)
 {
 	const union acpi_object *obj;
 	const union acpi_object *items;
 	int ret;
 
 	if (val && nval == 1) {
-		ret = acpi_dev_prop_read_single(adev, propname, proptype, val);
+		ret = acpi_data_prop_read_single(data, propname, proptype, val);
 		if (!ret)
 			return ret;
 	}
 
-	ret = acpi_dev_get_property_array(adev, propname, ACPI_TYPE_ANY, &obj);
+	ret = acpi_data_get_property_array(data, propname, ACPI_TYPE_ANY, &obj);
 	if (ret)
 		return ret;
 
@@ -558,3 +766,84 @@
 	}
 	return ret;
 }
+
+int acpi_dev_prop_read(struct acpi_device *adev, const char *propname,
+		       enum dev_prop_type proptype, void *val, size_t nval)
+{
+	return adev ? acpi_data_prop_read(&adev->data, propname, proptype, val, nval) : -EINVAL;
+}
+
+/**
+ * acpi_node_prop_read - retrieve the value of an ACPI property with given name.
+ * @fwnode: Firmware node to get the property from.
+ * @propname: Name of the property.
+ * @proptype: Expected property type.
+ * @val: Location to store the property value (if not %NULL).
+ * @nval: Size of the array pointed to by @val.
+ *
+ * If @val is %NULL, return the number of array elements comprising the value
+ * of the property.  Otherwise, read at most @nval values to the array at the
+ * location pointed to by @val.
+ */
+int acpi_node_prop_read(struct fwnode_handle *fwnode,  const char *propname,
+		        enum dev_prop_type proptype, void *val, size_t nval)
+{
+	return acpi_data_prop_read(acpi_device_data_of_node(fwnode),
+				   propname, proptype, val, nval);
+}
+
+/**
+ * acpi_get_next_subnode - Return the next child node handle for a device.
+ * @dev: Device to find the next child node for.
+ * @child: Handle to one of the device's child nodes or a null handle.
+ */
+struct fwnode_handle *acpi_get_next_subnode(struct device *dev,
+					    struct fwnode_handle *child)
+{
+	struct acpi_device *adev = ACPI_COMPANION(dev);
+	struct list_head *head, *next;
+
+	if (!adev)
+		return NULL;
+
+	if (!child || child->type == FWNODE_ACPI) {
+		head = &adev->children;
+		if (list_empty(head))
+			goto nondev;
+
+		if (child) {
+			adev = to_acpi_device_node(child);
+			next = adev->node.next;
+			if (next == head) {
+				child = NULL;
+				goto nondev;
+			}
+			adev = list_entry(next, struct acpi_device, node);
+		} else {
+			adev = list_first_entry(head, struct acpi_device, node);
+		}
+		return acpi_fwnode_handle(adev);
+	}
+
+ nondev:
+	if (!child || child->type == FWNODE_ACPI_DATA) {
+		struct acpi_data_node *dn;
+
+		head = &adev->data.subnodes;
+		if (list_empty(head))
+			return NULL;
+
+		if (child) {
+			dn = to_acpi_data_node(child);
+			next = dn->sibling.next;
+			if (next == head)
+				return NULL;
+
+			dn = list_entry(next, struct acpi_data_node, sibling);
+		} else {
+			dn = list_first_entry(head, struct acpi_data_node, sibling);
+		}
+		return &dn->fwnode;
+	}
+	return NULL;
+}
diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
index 15d22db..cdc5c25 100644
--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -119,7 +119,7 @@
 EXPORT_SYMBOL_GPL(acpi_dev_resource_memory);
 
 static void acpi_dev_ioresource_flags(struct resource *res, u64 len,
-				      u8 io_decode)
+				      u8 io_decode, u8 translation_type)
 {
 	res->flags = IORESOURCE_IO;
 
@@ -131,6 +131,8 @@
 
 	if (io_decode == ACPI_DECODE_16)
 		res->flags |= IORESOURCE_IO_16BIT_ADDR;
+	if (translation_type == ACPI_SPARSE_TRANSLATION)
+		res->flags |= IORESOURCE_IO_SPARSE;
 }
 
 static void acpi_dev_get_ioresource(struct resource *res, u64 start, u64 len,
@@ -138,7 +140,7 @@
 {
 	res->start = start;
 	res->end = start + len - 1;
-	acpi_dev_ioresource_flags(res, len, io_decode);
+	acpi_dev_ioresource_flags(res, len, io_decode, 0);
 }
 
 /**
@@ -231,7 +233,8 @@
 		acpi_dev_memresource_flags(res, len, wp);
 		break;
 	case ACPI_IO_RANGE:
-		acpi_dev_ioresource_flags(res, len, iodec);
+		acpi_dev_ioresource_flags(res, len, iodec,
+					  addr->info.io.translation_type);
 		break;
 	case ACPI_BUS_NUMBER_RANGE:
 		res->flags = IORESOURCE_BUS;
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 01136b8..daf9fc8 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -695,26 +695,6 @@
 	return result;
 }
 
-struct acpi_device *acpi_get_next_child(struct device *dev,
-					struct acpi_device *child)
-{
-	struct acpi_device *adev = ACPI_COMPANION(dev);
-	struct list_head *head, *next;
-
-	if (!adev)
-		return NULL;
-
-	head = &adev->children;
-	if (list_empty(head))
-		return NULL;
-
-	if (!child)
-		return list_first_entry(head, struct acpi_device, node);
-
-	next = child->node.next;
-	return next == head ? NULL : list_entry(next, struct acpi_device, node);
-}
-
 /* --------------------------------------------------------------------------
                                  Device Enumeration
    -------------------------------------------------------------------------- */
@@ -1184,7 +1164,7 @@
 	if (!id)
 		return;
 
-	id->id = kstrdup(dev_id, GFP_KERNEL);
+	id->id = kstrdup_const(dev_id, GFP_KERNEL);
 	if (!id->id) {
 		kfree(id);
 		return;
@@ -1322,7 +1302,7 @@
 	struct acpi_hardware_id *id, *tmp;
 
 	list_for_each_entry_safe(id, tmp, &pnp->ids, list) {
-		kfree(id->id);
+		kfree_const(id->id);
 		kfree(id);
 	}
 	kfree(pnp->unique_id);
@@ -1472,7 +1452,7 @@
 }
 
 static bool acpi_scan_handler_matching(struct acpi_scan_handler *handler,
-				       char *idstr,
+				       const char *idstr,
 				       const struct acpi_device_id **matchid)
 {
 	const struct acpi_device_id *devid;
@@ -1491,7 +1471,7 @@
 	return false;
 }
 
-static struct acpi_scan_handler *acpi_scan_match_handler(char *idstr,
+static struct acpi_scan_handler *acpi_scan_match_handler(const char *idstr,
 					const struct acpi_device_id **matchid)
 {
 	struct acpi_scan_handler *handler;
@@ -1933,3 +1913,42 @@
 	mutex_unlock(&acpi_scan_lock);
 	return result;
 }
+
+static struct acpi_probe_entry *ape;
+static int acpi_probe_count;
+static DEFINE_SPINLOCK(acpi_probe_lock);
+
+static int __init acpi_match_madt(struct acpi_subtable_header *header,
+				  const unsigned long end)
+{
+	if (!ape->subtable_valid || ape->subtable_valid(header, ape))
+		if (!ape->probe_subtbl(header, end))
+			acpi_probe_count++;
+
+	return 0;
+}
+
+int __init __acpi_probe_device_table(struct acpi_probe_entry *ap_head, int nr)
+{
+	int count = 0;
+
+	if (acpi_disabled)
+		return 0;
+
+	spin_lock(&acpi_probe_lock);
+	for (ape = ap_head; nr; ape++, nr--) {
+		if (ACPI_COMPARE_NAME(ACPI_SIG_MADT, ape->id)) {
+			acpi_probe_count = 0;
+			acpi_table_parse_madt(ape->type, acpi_match_madt, 0);
+			count += acpi_probe_count;
+		} else {
+			int res;
+			res = acpi_table_parse(ape->id, ape->probe_table);
+			if (!res)
+				count++;
+		}
+	}
+	spin_unlock(&acpi_probe_lock);
+
+	return count;
+}
diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
index 17a6fa0..6c0f079 100644
--- a/drivers/acpi/tables.c
+++ b/drivers/acpi/tables.c
@@ -210,20 +210,39 @@
 	}
 }
 
-int __init
-acpi_parse_entries(char *id, unsigned long table_size,
-		acpi_tbl_entry_handler handler,
+/**
+ * acpi_parse_entries_array - for each proc_num find a suitable subtable
+ *
+ * @id: table id (for debugging purposes)
+ * @table_size: single entry size
+ * @table_header: where does the table start?
+ * @proc: array of acpi_subtable_proc struct containing entry id
+ *        and associated handler with it
+ * @proc_num: how big proc is?
+ * @max_entries: how many entries can we process?
+ *
+ * For each proc_num find a subtable with proc->id and run proc->handler
+ * on it. Assumption is that there's only single handler for particular
+ * entry id.
+ *
+ * On success returns sum of all matching entries for all proc handlers.
+ * Otherwise, -ENODEV or -EINVAL is returned.
+ */
+static int __init
+acpi_parse_entries_array(char *id, unsigned long table_size,
 		struct acpi_table_header *table_header,
-		int entry_id, unsigned int max_entries)
+		struct acpi_subtable_proc *proc, int proc_num,
+		unsigned int max_entries)
 {
 	struct acpi_subtable_header *entry;
-	int count = 0;
 	unsigned long table_end;
+	int count = 0;
+	int i;
 
 	if (acpi_disabled)
 		return -ENODEV;
 
-	if (!id || !handler)
+	if (!id)
 		return -EINVAL;
 
 	if (!table_size)
@@ -243,20 +262,28 @@
 
 	while (((unsigned long)entry) + sizeof(struct acpi_subtable_header) <
 	       table_end) {
-		if (entry->type == entry_id
-		    && (!max_entries || count < max_entries)) {
-			if (handler(entry, table_end))
+		if (max_entries && count >= max_entries)
+			break;
+
+		for (i = 0; i < proc_num; i++) {
+			if (entry->type != proc[i].id)
+				continue;
+			if (!proc[i].handler ||
+			     proc[i].handler(entry, table_end))
 				return -EINVAL;
 
-			count++;
+			proc->count++;
+			break;
 		}
+		if (i != proc_num)
+			count++;
 
 		/*
 		 * If entry->length is 0, break from this loop to avoid
 		 * infinite loop.
 		 */
 		if (entry->length == 0) {
-			pr_err("[%4.4s:0x%02x] Invalid zero length\n", id, entry_id);
+			pr_err("[%4.4s:0x%02x] Invalid zero length\n", id, proc->id);
 			return -EINVAL;
 		}
 
@@ -266,17 +293,32 @@
 
 	if (max_entries && count > max_entries) {
 		pr_warn("[%4.4s:0x%02x] ignored %i entries of %i found\n",
-			id, entry_id, count - max_entries, count);
+			id, proc->id, count - max_entries, count);
 	}
 
 	return count;
 }
 
 int __init
-acpi_table_parse_entries(char *id,
+acpi_parse_entries(char *id,
+			unsigned long table_size,
+			acpi_tbl_entry_handler handler,
+			struct acpi_table_header *table_header,
+			int entry_id, unsigned int max_entries)
+{
+	struct acpi_subtable_proc proc = {
+		.id		= entry_id,
+		.handler	= handler,
+	};
+
+	return acpi_parse_entries_array(id, table_size, table_header,
+			&proc, 1, max_entries);
+}
+
+int __init
+acpi_table_parse_entries_array(char *id,
 			 unsigned long table_size,
-			 int entry_id,
-			 acpi_tbl_entry_handler handler,
+			 struct acpi_subtable_proc *proc, int proc_num,
 			 unsigned int max_entries)
 {
 	struct acpi_table_header *table_header = NULL;
@@ -287,7 +329,7 @@
 	if (acpi_disabled)
 		return -ENODEV;
 
-	if (!id || !handler)
+	if (!id)
 		return -EINVAL;
 
 	if (!strncmp(id, ACPI_SIG_MADT, 4))
@@ -299,14 +341,30 @@
 		return -ENODEV;
 	}
 
-	count = acpi_parse_entries(id, table_size, handler, table_header,
-			entry_id, max_entries);
+	count = acpi_parse_entries_array(id, table_size, table_header,
+			proc, proc_num, max_entries);
 
 	early_acpi_os_unmap_memory((char *)table_header, tbl_size);
 	return count;
 }
 
 int __init
+acpi_table_parse_entries(char *id,
+			unsigned long table_size,
+			int entry_id,
+			acpi_tbl_entry_handler handler,
+			unsigned int max_entries)
+{
+	struct acpi_subtable_proc proc = {
+		.id		= entry_id,
+		.handler	= handler,
+	};
+
+	return acpi_table_parse_entries_array(id, table_size, &proc, 1,
+						max_entries);
+}
+
+int __init
 acpi_table_parse_madt(enum acpi_madt_type id,
 		      acpi_tbl_entry_handler handler, unsigned int max_entries)
 {
diff --git a/drivers/base/dma-contiguous.c b/drivers/base/dma-contiguous.c
index 950fff9..a12ff98 100644
--- a/drivers/base/dma-contiguous.c
+++ b/drivers/base/dma-contiguous.c
@@ -187,7 +187,7 @@
  * global one. Requires architecture specific dev_get_cma_area() helper
  * function.
  */
-struct page *dma_alloc_from_contiguous(struct device *dev, int count,
+struct page *dma_alloc_from_contiguous(struct device *dev, size_t count,
 				       unsigned int align)
 {
 	if (align > CONFIG_CMA_ALIGNMENT)
diff --git a/drivers/base/power/domain_governor.c b/drivers/base/power/domain_governor.c
index 2a4154a..85e17ba 100644
--- a/drivers/base/power/domain_governor.c
+++ b/drivers/base/power/domain_governor.c
@@ -77,13 +77,16 @@
 				      dev_update_qos_constraint);
 
 	if (constraint_ns > 0) {
-		constraint_ns -= td->start_latency_ns;
+		constraint_ns -= td->save_state_latency_ns +
+				td->stop_latency_ns +
+				td->start_latency_ns +
+				td->restore_state_latency_ns;
 		if (constraint_ns == 0)
 			return false;
 	}
 	td->effective_constraint_ns = constraint_ns;
-	td->cached_stop_ok = constraint_ns > td->stop_latency_ns ||
-				constraint_ns == 0;
+	td->cached_stop_ok = constraint_ns >= 0;
+
 	/*
 	 * The children have been suspended already, so we don't need to take
 	 * their stop latencies into account here.
@@ -126,18 +129,6 @@
 
 	off_on_time_ns = genpd->power_off_latency_ns +
 				genpd->power_on_latency_ns;
-	/*
-	 * It doesn't make sense to remove power from the domain if saving
-	 * the state of all devices in it and the power off/power on operations
-	 * take too much time.
-	 *
-	 * All devices in this domain have been stopped already at this point.
-	 */
-	list_for_each_entry(pdd, &genpd->dev_list, list_node) {
-		if (pdd->dev->driver)
-			off_on_time_ns +=
-				to_gpd_data(pdd)->td.save_state_latency_ns;
-	}
 
 	min_off_time_ns = -1;
 	/*
@@ -193,7 +184,6 @@
 		 * constraint_ns cannot be negative here, because the device has
 		 * been suspended.
 		 */
-		constraint_ns -= td->restore_state_latency_ns;
 		if (constraint_ns <= off_on_time_ns)
 			return false;
 
diff --git a/drivers/base/property.c b/drivers/base/property.c
index 2d75366..de40623 100644
--- a/drivers/base/property.c
+++ b/drivers/base/property.c
@@ -134,7 +134,7 @@
 	if (is_of_node(fwnode))
 		return of_property_read_bool(to_of_node(fwnode), propname);
 	else if (is_acpi_node(fwnode))
-		return !acpi_dev_prop_get(to_acpi_node(fwnode), propname, NULL);
+		return !acpi_node_prop_get(fwnode, propname, NULL);
 
 	return !!pset_prop_get(to_pset(fwnode), propname);
 }
@@ -287,6 +287,28 @@
 }
 EXPORT_SYMBOL_GPL(device_property_read_string);
 
+/**
+ * device_property_match_string - find a string in an array and return index
+ * @dev: Device to get the property of
+ * @propname: Name of the property holding the array
+ * @string: String to look for
+ *
+ * Find a given string in a string array and if it is found return the
+ * index back.
+ *
+ * Return: %0 if the property was found (success),
+ *	   %-EINVAL if given arguments are not valid,
+ *	   %-ENODATA if the property does not have a value,
+ *	   %-EPROTO if the property is not an array of strings,
+ *	   %-ENXIO if no suitable firmware interface is present.
+ */
+int device_property_match_string(struct device *dev, const char *propname,
+				 const char *string)
+{
+	return fwnode_property_match_string(dev_fwnode(dev), propname, string);
+}
+EXPORT_SYMBOL_GPL(device_property_match_string);
+
 #define OF_DEV_PROP_READ_ARRAY(node, propname, type, val, nval) \
 	(val) ? of_property_read_##type##_array((node), (propname), (val), (nval)) \
 	      : of_property_count_elems_of_size((node), (propname), sizeof(type))
@@ -298,8 +320,8 @@
 		_ret_ = OF_DEV_PROP_READ_ARRAY(to_of_node(_fwnode_), _propname_, \
 					       _type_, _val_, _nval_); \
 	else if (is_acpi_node(_fwnode_)) \
-		_ret_ = acpi_dev_prop_read(to_acpi_node(_fwnode_), _propname_, \
-					   _proptype_, _val_, _nval_); \
+		_ret_ = acpi_node_prop_read(_fwnode_, _propname_, _proptype_, \
+					    _val_, _nval_); \
 	else if (is_pset(_fwnode_)) \
 		_ret_ = pset_prop_read_array(to_pset(_fwnode_), _propname_, \
 					     _proptype_, _val_, _nval_); \
@@ -440,8 +462,8 @@
 						      propname, val, nval) :
 			of_property_count_strings(to_of_node(fwnode), propname);
 	else if (is_acpi_node(fwnode))
-		return acpi_dev_prop_read(to_acpi_node(fwnode), propname,
-					  DEV_PROP_STRING, val, nval);
+		return acpi_node_prop_read(fwnode, propname, DEV_PROP_STRING,
+					   val, nval);
 	else if (is_pset(fwnode))
 		return pset_prop_read_array(to_pset(fwnode), propname,
 					    DEV_PROP_STRING, val, nval);
@@ -470,8 +492,8 @@
 	if (is_of_node(fwnode))
 		return of_property_read_string(to_of_node(fwnode), propname, val);
 	else if (is_acpi_node(fwnode))
-		return acpi_dev_prop_read(to_acpi_node(fwnode), propname,
-					  DEV_PROP_STRING, val, 1);
+		return acpi_node_prop_read(fwnode, propname, DEV_PROP_STRING,
+					   val, 1);
 
 	return pset_prop_read_array(to_pset(fwnode), propname,
 				    DEV_PROP_STRING, val, 1);
@@ -479,6 +501,52 @@
 EXPORT_SYMBOL_GPL(fwnode_property_read_string);
 
 /**
+ * fwnode_property_match_string - find a string in an array and return index
+ * @fwnode: Firmware node to get the property of
+ * @propname: Name of the property holding the array
+ * @string: String to look for
+ *
+ * Find a given string in a string array and if it is found return the
+ * index back.
+ *
+ * Return: %0 if the property was found (success),
+ *	   %-EINVAL if given arguments are not valid,
+ *	   %-ENODATA if the property does not have a value,
+ *	   %-EPROTO if the property is not an array of strings,
+ *	   %-ENXIO if no suitable firmware interface is present.
+ */
+int fwnode_property_match_string(struct fwnode_handle *fwnode,
+	const char *propname, const char *string)
+{
+	const char **values;
+	int nval, ret, i;
+
+	nval = fwnode_property_read_string_array(fwnode, propname, NULL, 0);
+	if (nval < 0)
+		return nval;
+
+	values = kcalloc(nval, sizeof(*values), GFP_KERNEL);
+	if (!values)
+		return -ENOMEM;
+
+	ret = fwnode_property_read_string_array(fwnode, propname, values, nval);
+	if (ret < 0)
+		goto out;
+
+	ret = -ENODATA;
+	for (i = 0; i < nval; i++) {
+		if (!strcmp(values[i], string)) {
+			ret = i;
+			break;
+		}
+	}
+out:
+	kfree(values);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(fwnode_property_match_string);
+
+/**
  * device_get_next_child_node - Return the next child node handle for a device
  * @dev: Device to find the next child node for.
  * @child: Handle to one of the device's child nodes or a null handle.
@@ -493,11 +561,7 @@
 		if (node)
 			return &node->fwnode;
 	} else if (IS_ENABLED(CONFIG_ACPI)) {
-		struct acpi_device *node;
-
-		node = acpi_get_next_child(dev, to_acpi_node(child));
-		if (node)
-			return acpi_fwnode_handle(node);
+		return acpi_get_next_subnode(dev, child);
 	}
 	return NULL;
 }
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 293495a..1b87623 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -60,6 +60,7 @@
 	bool disconnect; /* a disconnect has been requested by user */
 
 	struct timer_list timeout_timer;
+	spinlock_t tasks_lock;
 	struct task_struct *task_recv;
 	struct task_struct *task_send;
 
@@ -140,21 +141,23 @@
 static void nbd_xmit_timeout(unsigned long arg)
 {
 	struct nbd_device *nbd = (struct nbd_device *)arg;
-	struct task_struct *task;
+	unsigned long flags;
 
 	if (list_empty(&nbd->queue_head))
 		return;
 
 	nbd->disconnect = true;
 
-	task = READ_ONCE(nbd->task_recv);
-	if (task)
-		force_sig(SIGKILL, task);
+	spin_lock_irqsave(&nbd->tasks_lock, flags);
 
-	task = READ_ONCE(nbd->task_send);
-	if (task)
+	if (nbd->task_recv)
+		force_sig(SIGKILL, nbd->task_recv);
+
+	if (nbd->task_send)
 		force_sig(SIGKILL, nbd->task_send);
 
+	spin_unlock_irqrestore(&nbd->tasks_lock, flags);
+
 	dev_err(nbd_to_dev(nbd), "Connection timed out, killed receiver and sender, shutting down connection\n");
 }
 
@@ -403,17 +406,24 @@
 {
 	struct request *req;
 	int ret;
+	unsigned long flags;
 
 	BUG_ON(nbd->magic != NBD_MAGIC);
 
 	sk_set_memalloc(nbd->sock->sk);
 
+	spin_lock_irqsave(&nbd->tasks_lock, flags);
 	nbd->task_recv = current;
+	spin_unlock_irqrestore(&nbd->tasks_lock, flags);
 
 	ret = device_create_file(disk_to_dev(nbd->disk), &pid_attr);
 	if (ret) {
 		dev_err(disk_to_dev(nbd->disk), "device_create_file failed!\n");
+
+		spin_lock_irqsave(&nbd->tasks_lock, flags);
 		nbd->task_recv = NULL;
+		spin_unlock_irqrestore(&nbd->tasks_lock, flags);
+
 		return ret;
 	}
 
@@ -429,7 +439,9 @@
 
 	device_remove_file(disk_to_dev(nbd->disk), &pid_attr);
 
+	spin_lock_irqsave(&nbd->tasks_lock, flags);
 	nbd->task_recv = NULL;
+	spin_unlock_irqrestore(&nbd->tasks_lock, flags);
 
 	if (signal_pending(current)) {
 		siginfo_t info;
@@ -534,8 +546,11 @@
 {
 	struct nbd_device *nbd = data;
 	struct request *req;
+	unsigned long flags;
 
+	spin_lock_irqsave(&nbd->tasks_lock, flags);
 	nbd->task_send = current;
+	spin_unlock_irqrestore(&nbd->tasks_lock, flags);
 
 	set_user_nice(current, MIN_NICE);
 	while (!kthread_should_stop() || !list_empty(&nbd->waiting_queue)) {
@@ -572,7 +587,15 @@
 		nbd_handle_req(nbd, req);
 	}
 
+	spin_lock_irqsave(&nbd->tasks_lock, flags);
 	nbd->task_send = NULL;
+	spin_unlock_irqrestore(&nbd->tasks_lock, flags);
+
+	/* Clear maybe pending signals */
+	if (signal_pending(current)) {
+		siginfo_t info;
+		dequeue_signal_lock(current, &current->blocked, &info);
+	}
 
 	return 0;
 }
@@ -1052,6 +1075,7 @@
 		nbd_dev[i].magic = NBD_MAGIC;
 		INIT_LIST_HEAD(&nbd_dev[i].waiting_queue);
 		spin_lock_init(&nbd_dev[i].queue_lock);
+		spin_lock_init(&nbd_dev[i].tasks_lock);
 		INIT_LIST_HEAD(&nbd_dev[i].queue_head);
 		mutex_init(&nbd_dev[i].tx_lock);
 		init_timer(&nbd_dev[i].timeout_timer);
diff --git a/drivers/block/nvme-core.c b/drivers/block/nvme-core.c
index 6f04771..ccc0c1f 100644
--- a/drivers/block/nvme-core.c
+++ b/drivers/block/nvme-core.c
@@ -603,27 +603,31 @@
 	struct nvme_iod *iod = ctx;
 	struct request *req = iod_get_private(iod);
 	struct nvme_cmd_info *cmd_rq = blk_mq_rq_to_pdu(req);
-
 	u16 status = le16_to_cpup(&cqe->status) >> 1;
+	bool requeue = false;
+	int error = 0;
 
 	if (unlikely(status)) {
 		if (!(status & NVME_SC_DNR || blk_noretry_request(req))
 		    && (jiffies - req->start_time) < req->timeout) {
 			unsigned long flags;
 
+			requeue = true;
 			blk_mq_requeue_request(req);
 			spin_lock_irqsave(req->q->queue_lock, flags);
 			if (!blk_queue_stopped(req->q))
 				blk_mq_kick_requeue_list(req->q);
 			spin_unlock_irqrestore(req->q->queue_lock, flags);
-			return;
+			goto release_iod;
 		}
 
 		if (req->cmd_type == REQ_TYPE_DRV_PRIV) {
 			if (cmd_rq->ctx == CMD_CTX_CANCELLED)
-				status = -EINTR;
+				error = -EINTR;
+			else
+				error = status;
 		} else {
-			status = nvme_error_status(status);
+			error = nvme_error_status(status);
 		}
 	}
 
@@ -635,8 +639,9 @@
 	if (cmd_rq->aborted)
 		dev_warn(nvmeq->dev->dev,
 			"completing aborted command with status:%04x\n",
-			status);
+			error);
 
+release_iod:
 	if (iod->nents) {
 		dma_unmap_sg(nvmeq->dev->dev, iod->sg, iod->nents,
 			rq_data_dir(req) ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
@@ -649,7 +654,8 @@
 	}
 	nvme_free_iod(nvmeq->dev, iod);
 
-	blk_mq_complete_request(req, status);
+	if (likely(!requeue))
+		blk_mq_complete_request(req, error);
 }
 
 /* length is in bytes.  gfp flags indicates whether we may sleep. */
@@ -1804,7 +1810,7 @@
 
 	length = (io.nblocks + 1) << ns->lba_shift;
 	meta_len = (io.nblocks + 1) * ns->ms;
-	metadata = (void __user *)(unsigned long)io.metadata;
+	metadata = (void __user *)(uintptr_t)io.metadata;
 	write = io.opcode & 1;
 
 	if (ns->ext) {
@@ -1844,7 +1850,7 @@
 	c.rw.metadata = cpu_to_le64(meta_dma);
 
 	status = __nvme_submit_sync_cmd(ns->queue, &c, NULL,
-			(void __user *)io.addr, length, NULL, 0);
+			(void __user *)(uintptr_t)io.addr, length, NULL, 0);
  unmap:
 	if (meta) {
 		if (status == NVME_SC_SUCCESS && !write) {
@@ -1886,7 +1892,7 @@
 		timeout = msecs_to_jiffies(cmd.timeout_ms);
 
 	status = __nvme_submit_sync_cmd(ns ? ns->queue : dev->admin_q, &c,
-			NULL, (void __user *)cmd.addr, cmd.data_len,
+			NULL, (void __user *)(uintptr_t)cmd.addr, cmd.data_len,
 			&cmd.result, timeout);
 	if (status >= 0) {
 		if (put_user(cmd.result, &ucmd->result))
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index d93a037..6f26cf3 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -96,6 +96,8 @@
 #define RBD_MINORS_PER_MAJOR		256
 #define RBD_SINGLE_MAJOR_PART_SHIFT	4
 
+#define RBD_MAX_PARENT_CHAIN_LEN	16
+
 #define RBD_SNAP_DEV_NAME_PREFIX	"snap_"
 #define RBD_MAX_SNAP_NAME_LEN	\
 			(NAME_MAX - (sizeof (RBD_SNAP_DEV_NAME_PREFIX) - 1))
@@ -426,7 +428,7 @@
 				    size_t count);
 static ssize_t rbd_remove_single_major(struct bus_type *bus, const char *buf,
 				       size_t count);
-static int rbd_dev_image_probe(struct rbd_device *rbd_dev, bool mapping);
+static int rbd_dev_image_probe(struct rbd_device *rbd_dev, int depth);
 static void rbd_spec_put(struct rbd_spec *spec);
 
 static int rbd_dev_id_to_minor(int dev_id)
@@ -1863,9 +1865,11 @@
 		rbd_osd_read_callback(obj_request);
 		break;
 	case CEPH_OSD_OP_SETALLOCHINT:
-		rbd_assert(osd_req->r_ops[1].op == CEPH_OSD_OP_WRITE);
+		rbd_assert(osd_req->r_ops[1].op == CEPH_OSD_OP_WRITE ||
+			   osd_req->r_ops[1].op == CEPH_OSD_OP_WRITEFULL);
 		/* fall through */
 	case CEPH_OSD_OP_WRITE:
+	case CEPH_OSD_OP_WRITEFULL:
 		rbd_osd_write_callback(obj_request);
 		break;
 	case CEPH_OSD_OP_STAT:
@@ -2401,7 +2405,10 @@
 				opcode = CEPH_OSD_OP_ZERO;
 		}
 	} else if (op_type == OBJ_OP_WRITE) {
-		opcode = CEPH_OSD_OP_WRITE;
+		if (!offset && length == object_size)
+			opcode = CEPH_OSD_OP_WRITEFULL;
+		else
+			opcode = CEPH_OSD_OP_WRITE;
 		osd_req_op_alloc_hint_init(osd_request, num_ops,
 					object_size, object_size);
 		num_ops++;
@@ -3760,6 +3767,7 @@
 	/* set io sizes to object size */
 	segment_size = rbd_obj_bytes(&rbd_dev->header);
 	blk_queue_max_hw_sectors(q, segment_size / SECTOR_SIZE);
+	q->limits.max_sectors = queue_max_hw_sectors(q);
 	blk_queue_max_segments(q, segment_size / SECTOR_SIZE);
 	blk_queue_max_segment_size(q, segment_size);
 	blk_queue_io_min(q, segment_size);
@@ -5125,44 +5133,51 @@
 	return ret;
 }
 
-static int rbd_dev_probe_parent(struct rbd_device *rbd_dev)
+/*
+ * @depth is rbd_dev_image_probe() -> rbd_dev_probe_parent() ->
+ * rbd_dev_image_probe() recursion depth, which means it's also the
+ * length of the already discovered part of the parent chain.
+ */
+static int rbd_dev_probe_parent(struct rbd_device *rbd_dev, int depth)
 {
 	struct rbd_device *parent = NULL;
-	struct rbd_spec *parent_spec;
-	struct rbd_client *rbdc;
 	int ret;
 
 	if (!rbd_dev->parent_spec)
 		return 0;
-	/*
-	 * We need to pass a reference to the client and the parent
-	 * spec when creating the parent rbd_dev.  Images related by
-	 * parent/child relationships always share both.
-	 */
-	parent_spec = rbd_spec_get(rbd_dev->parent_spec);
-	rbdc = __rbd_get_client(rbd_dev->rbd_client);
 
-	ret = -ENOMEM;
-	parent = rbd_dev_create(rbdc, parent_spec, NULL);
-	if (!parent)
+	if (++depth > RBD_MAX_PARENT_CHAIN_LEN) {
+		pr_info("parent chain is too long (%d)\n", depth);
+		ret = -EINVAL;
 		goto out_err;
-
-	ret = rbd_dev_image_probe(parent, false);
-	if (ret < 0)
-		goto out_err;
-	rbd_dev->parent = parent;
-	atomic_set(&rbd_dev->parent_ref, 1);
-
-	return 0;
-out_err:
-	if (parent) {
-		rbd_dev_unparent(rbd_dev);
-		rbd_dev_destroy(parent);
-	} else {
-		rbd_put_client(rbdc);
-		rbd_spec_put(parent_spec);
 	}
 
+	parent = rbd_dev_create(rbd_dev->rbd_client, rbd_dev->parent_spec,
+				NULL);
+	if (!parent) {
+		ret = -ENOMEM;
+		goto out_err;
+	}
+
+	/*
+	 * Images related by parent/child relationships always share
+	 * rbd_client and spec/parent_spec, so bump their refcounts.
+	 */
+	__rbd_get_client(rbd_dev->rbd_client);
+	rbd_spec_get(rbd_dev->parent_spec);
+
+	ret = rbd_dev_image_probe(parent, depth);
+	if (ret < 0)
+		goto out_err;
+
+	rbd_dev->parent = parent;
+	atomic_set(&rbd_dev->parent_ref, 1);
+	return 0;
+
+out_err:
+	rbd_dev_unparent(rbd_dev);
+	if (parent)
+		rbd_dev_destroy(parent);
 	return ret;
 }
 
@@ -5280,7 +5295,7 @@
  * parent), initiate a watch on its header object before using that
  * object to get detailed information about the rbd image.
  */
-static int rbd_dev_image_probe(struct rbd_device *rbd_dev, bool mapping)
+static int rbd_dev_image_probe(struct rbd_device *rbd_dev, int depth)
 {
 	int ret;
 
@@ -5298,7 +5313,7 @@
 	if (ret)
 		goto err_out_format;
 
-	if (mapping) {
+	if (!depth) {
 		ret = rbd_dev_header_watch_sync(rbd_dev);
 		if (ret) {
 			if (ret == -ENOENT)
@@ -5319,7 +5334,7 @@
 	 * Otherwise this is a parent image, identified by pool, image
 	 * and snap ids - need to fill in names for those ids.
 	 */
-	if (mapping)
+	if (!depth)
 		ret = rbd_spec_fill_snap_id(rbd_dev);
 	else
 		ret = rbd_spec_fill_names(rbd_dev);
@@ -5341,12 +5356,12 @@
 		 * Need to warn users if this image is the one being
 		 * mapped and has a parent.
 		 */
-		if (mapping && rbd_dev->parent_spec)
+		if (!depth && rbd_dev->parent_spec)
 			rbd_warn(rbd_dev,
 				 "WARNING: kernel layering is EXPERIMENTAL!");
 	}
 
-	ret = rbd_dev_probe_parent(rbd_dev);
+	ret = rbd_dev_probe_parent(rbd_dev, depth);
 	if (ret)
 		goto err_out_probe;
 
@@ -5357,7 +5372,7 @@
 err_out_probe:
 	rbd_dev_unprobe(rbd_dev);
 err_out_watch:
-	if (mapping)
+	if (!depth)
 		rbd_dev_header_unwatch_sync(rbd_dev);
 out_header_name:
 	kfree(rbd_dev->header_name);
@@ -5420,7 +5435,7 @@
 	spec = NULL;		/* rbd_dev now owns this */
 	rbd_opts = NULL;	/* rbd_dev now owns this */
 
-	rc = rbd_dev_image_probe(rbd_dev, true);
+	rc = rbd_dev_image_probe(rbd_dev, 0);
 	if (rc < 0)
 		goto err_out_rbd_dev;
 
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 6111708..a69c02d 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -1956,7 +1956,8 @@
 			break;
 		/* Missed the backend's Closing state -- fallthrough */
 	case XenbusStateClosing:
-		blkfront_closing(info);
+		if (info)
+			blkfront_closing(info);
 		break;
 	}
 }
diff --git a/drivers/bus/arm-ccn.c b/drivers/bus/arm-ccn.c
index 7d9879e..7082c72 100644
--- a/drivers/bus/arm-ccn.c
+++ b/drivers/bus/arm-ccn.c
@@ -1184,11 +1184,12 @@
 		if (!cpumask_test_and_clear_cpu(cpu, &dt->cpu))
 			break;
 		target = cpumask_any_but(cpu_online_mask, cpu);
-		if (target < 0)
+		if (target >= nr_cpu_ids)
 			break;
 		perf_pmu_migrate_context(&dt->pmu, cpu, target);
 		cpumask_set_cpu(target, &dt->cpu);
-		WARN_ON(irq_set_affinity(ccn->irq, &dt->cpu) != 0);
+		if (ccn->irq)
+			WARN_ON(irq_set_affinity(ccn->irq, &dt->cpu) != 0);
 	default:
 		break;
 	}
diff --git a/drivers/clk/mvebu/clk-cpu.c b/drivers/clk/mvebu/clk-cpu.c
index 5837eb8..85da8b9 100644
--- a/drivers/clk/mvebu/clk-cpu.c
+++ b/drivers/clk/mvebu/clk-cpu.c
@@ -197,6 +197,7 @@
 	for_each_node_by_type(dn, "cpu") {
 		struct clk_init_data init;
 		struct clk *clk;
+		struct clk *parent_clk;
 		char *clk_name = kzalloc(5, GFP_KERNEL);
 		int cpu, err;
 
@@ -208,8 +209,9 @@
 			goto bail_out;
 
 		sprintf(clk_name, "cpu%d", cpu);
+		parent_clk = of_clk_get(node, 0);
 
-		cpuclk[cpu].parent_name = of_clk_get_parent_name(node, 0);
+		cpuclk[cpu].parent_name = __clk_get_name(parent_clk);
 		cpuclk[cpu].clk_name = clk_name;
 		cpuclk[cpu].cpu = cpu;
 		cpuclk[cpu].reg_base = clock_complex_base;
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index a7726db..1a9c5dc 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -2,6 +2,14 @@
 
 config CLKSRC_OF
 	bool
+	select CLKSRC_PROBE
+
+config CLKSRC_ACPI
+	bool
+	select CLKSRC_PROBE
+
+config CLKSRC_PROBE
+	bool
 
 config CLKSRC_I8253
 	bool
@@ -123,6 +131,7 @@
 config ARM_ARCH_TIMER
 	bool
 	select CLKSRC_OF if OF
+	select CLKSRC_ACPI if ACPI
 
 config ARM_ARCH_TIMER_EVTSTREAM
 	bool "Support for ARM architected timer event stream generation"
diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile
index 5c00863..51856d5 100644
--- a/drivers/clocksource/Makefile
+++ b/drivers/clocksource/Makefile
@@ -1,4 +1,4 @@
-obj-$(CONFIG_CLKSRC_OF)	+= clksrc-of.o
+obj-$(CONFIG_CLKSRC_PROBE)	+= clksrc-probe.o
 obj-$(CONFIG_ATMEL_PIT)		+= timer-atmel-pit.o
 obj-$(CONFIG_ATMEL_ST)		+= timer-atmel-st.o
 obj-$(CONFIG_ATMEL_TCB_CLKSRC)	+= tcb_clksrc.o
diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c
index d6e3e49..c64d543 100644
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -864,13 +864,5 @@
 	arch_timer_init();
 	return 0;
 }
-
-/* Initialize all the generic timers presented in GTDT */
-void __init acpi_generic_timer_init(void)
-{
-	if (acpi_disabled)
-		return;
-
-	acpi_table_parse(ACPI_SIG_GTDT, arch_timer_acpi_init);
-}
+CLOCKSOURCE_ACPI_DECLARE(arch_timer, ACPI_SIG_GTDT, arch_timer_acpi_init);
 #endif
diff --git a/drivers/clocksource/clksrc-of.c b/drivers/clocksource/clksrc-probe.c
similarity index 91%
rename from drivers/clocksource/clksrc-of.c
rename to drivers/clocksource/clksrc-probe.c
index 0093a8e..7cb6c92 100644
--- a/drivers/clocksource/clksrc-of.c
+++ b/drivers/clocksource/clksrc-probe.c
@@ -14,6 +14,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <linux/acpi.h>
 #include <linux/init.h>
 #include <linux/of.h>
 #include <linux/clocksource.h>
@@ -23,7 +24,7 @@
 static const struct of_device_id __clksrc_of_table_sentinel
 	__used __section(__clksrc_of_table_end);
 
-void __init clocksource_of_init(void)
+void __init clocksource_probe(void)
 {
 	struct device_node *np;
 	const struct of_device_id *match;
@@ -38,6 +39,9 @@
 		init_func(np);
 		clocksources++;
 	}
+
+	clocksources += acpi_probe_device_table(clksrc);
+
 	if (!clocksources)
 		pr_crit("%s: no matching clocksources found\n", __func__);
 }
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 3af9dd7..aa33b92 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -776,6 +776,11 @@
 	local_irq_save(flags);
 	rdmsrl(MSR_IA32_APERF, aperf);
 	rdmsrl(MSR_IA32_MPERF, mperf);
+	if (cpu->prev_mperf == mperf) {
+		local_irq_restore(flags);
+		return;
+	}
+
 	tsc = rdtsc();
 	local_irq_restore(flags);
 
diff --git a/drivers/dma/acpi-dma.c b/drivers/dma/acpi-dma.c
index 5a63564..981a38f 100644
--- a/drivers/dma/acpi-dma.c
+++ b/drivers/dma/acpi-dma.c
@@ -21,6 +21,7 @@
 #include <linux/ioport.h>
 #include <linux/acpi.h>
 #include <linux/acpi_dma.h>
+#include <linux/property.h>
 
 static LIST_HEAD(acpi_dma_list);
 static DEFINE_MUTEX(acpi_dma_lock);
@@ -413,21 +414,29 @@
  * translate the names "tx" and "rx" here based on the most common case where
  * the first FixedDMA descriptor is TX and second is RX.
  *
+ * If the device has "dma-names" property the FixedDMA descriptor indices
+ * are retrieved based on those. Otherwise the function falls back using
+ * hardcoded indices.
+ *
  * Return:
  * Pointer to appropriate dma channel on success or an error pointer.
  */
 struct dma_chan *acpi_dma_request_slave_chan_by_name(struct device *dev,
 		const char *name)
 {
-	size_t index;
+	int index;
 
-	if (!strcmp(name, "tx"))
-		index = 0;
-	else if (!strcmp(name, "rx"))
-		index = 1;
-	else
-		return ERR_PTR(-ENODEV);
+	index = device_property_match_string(dev, "dma-names", name);
+	if (index < 0) {
+		if (!strcmp(name, "tx"))
+			index = 0;
+		else if (!strcmp(name, "rx"))
+			index = 1;
+		else
+			return ERR_PTR(-ENODEV);
+	}
 
+	dev_dbg(dev, "found DMA channel \"%s\" at index %d\n", name, index);
 	return acpi_dma_request_slave_chan_by_index(dev, index);
 }
 EXPORT_SYMBOL_GPL(acpi_dma_request_slave_chan_by_name);
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index 143a9bd..69a8362 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -389,6 +389,8 @@
 	struct acpi_gpio_info info;
 	int index;
 	int pin_index;
+	bool active_low;
+	struct acpi_device *adev;
 	struct gpio_desc *desc;
 	int n;
 };
@@ -425,6 +427,65 @@
 	return 1;
 }
 
+static int acpi_gpio_resource_lookup(struct acpi_gpio_lookup *lookup,
+				     struct acpi_gpio_info *info)
+{
+	struct list_head res_list;
+	int ret;
+
+	INIT_LIST_HEAD(&res_list);
+
+	ret = acpi_dev_get_resources(lookup->adev, &res_list, acpi_find_gpio,
+				     lookup);
+	if (ret < 0)
+		return ret;
+
+	acpi_dev_free_resource_list(&res_list);
+
+	if (!lookup->desc)
+		return -ENOENT;
+
+	if (info) {
+		*info = lookup->info;
+		if (lookup->active_low)
+			info->active_low = lookup->active_low;
+	}
+	return 0;
+}
+
+static int acpi_gpio_property_lookup(struct fwnode_handle *fwnode,
+				     const char *propname, int index,
+				     struct acpi_gpio_lookup *lookup)
+{
+	struct acpi_reference_args args;
+	int ret;
+
+	memset(&args, 0, sizeof(args));
+	ret = acpi_node_get_property_reference(fwnode, propname, index, &args);
+	if (ret) {
+		struct acpi_device *adev = to_acpi_device_node(fwnode);
+
+		if (!adev)
+			return ret;
+
+		if (!acpi_get_driver_gpio_data(adev, propname, index, &args))
+			return ret;
+	}
+	/*
+	 * The property was found and resolved, so need to lookup the GPIO based
+	 * on returned args.
+	 */
+	lookup->adev = args.adev;
+	if (args.nargs >= 2) {
+		lookup->index = args.args[0];
+		lookup->pin_index = args.args[1];
+		/* 3rd argument, if present is used to specify active_low. */
+		if (args.nargs >= 3)
+			lookup->active_low = !!args.args[2];
+	}
+	return 0;
+}
+
 /**
  * acpi_get_gpiod_by_index() - get a GPIO descriptor from device resources
  * @adev: pointer to a ACPI device to get GPIO from
@@ -452,8 +513,6 @@
 					  struct acpi_gpio_info *info)
 {
 	struct acpi_gpio_lookup lookup;
-	struct list_head resource_list;
-	bool active_low = false;
 	int ret;
 
 	if (!adev)
@@ -463,58 +522,64 @@
 	lookup.index = index;
 
 	if (propname) {
-		struct acpi_reference_args args;
-
 		dev_dbg(&adev->dev, "GPIO: looking up %s\n", propname);
 
-		memset(&args, 0, sizeof(args));
-		ret = acpi_dev_get_property_reference(adev, propname,
-						      index, &args);
-		if (ret) {
-			bool found = acpi_get_driver_gpio_data(adev, propname,
-							       index, &args);
-			if (!found)
-				return ERR_PTR(ret);
-		}
+		ret = acpi_gpio_property_lookup(acpi_fwnode_handle(adev),
+						propname, index, &lookup);
+		if (ret)
+			return ERR_PTR(ret);
 
-		/*
-		 * The property was found and resolved so need to
-		 * lookup the GPIO based on returned args instead.
-		 */
-		adev = args.adev;
-		if (args.nargs >= 2) {
-			lookup.index = args.args[0];
-			lookup.pin_index = args.args[1];
-			/*
-			 * 3rd argument, if present is used to
-			 * specify active_low.
-			 */
-			if (args.nargs >= 3)
-				active_low = !!args.args[2];
-		}
-
-		dev_dbg(&adev->dev, "GPIO: _DSD returned %s %zd %llu %llu %llu\n",
-			dev_name(&adev->dev), args.nargs,
-			args.args[0], args.args[1], args.args[2]);
+		dev_dbg(&adev->dev, "GPIO: _DSD returned %s %d %d %u\n",
+			dev_name(&lookup.adev->dev), lookup.index,
+			lookup.pin_index, lookup.active_low);
 	} else {
 		dev_dbg(&adev->dev, "GPIO: looking up %d in _CRS\n", index);
+		lookup.adev = adev;
 	}
 
-	INIT_LIST_HEAD(&resource_list);
-	ret = acpi_dev_get_resources(adev, &resource_list, acpi_find_gpio,
-				     &lookup);
-	if (ret < 0)
+	ret = acpi_gpio_resource_lookup(&lookup, info);
+	return ret ? ERR_PTR(ret) : lookup.desc;
+}
+
+/**
+ * acpi_node_get_gpiod() - get a GPIO descriptor from ACPI resources
+ * @fwnode: pointer to an ACPI firmware node to get the GPIO information from
+ * @propname: Property name of the GPIO
+ * @index: index of GpioIo/GpioInt resource (starting from %0)
+ * @info: info pointer to fill in (optional)
+ *
+ * If @fwnode is an ACPI device object, call %acpi_get_gpiod_by_index() for it.
+ * Otherwise (ie. it is a data-only non-device object), use the property-based
+ * GPIO lookup to get to the GPIO resource with the relevant information and use
+ * that to obtain the GPIO descriptor to return.
+ */
+struct gpio_desc *acpi_node_get_gpiod(struct fwnode_handle *fwnode,
+				      const char *propname, int index,
+				      struct acpi_gpio_info *info)
+{
+	struct acpi_gpio_lookup lookup;
+	struct acpi_device *adev;
+	int ret;
+
+	adev = to_acpi_device_node(fwnode);
+	if (adev)
+		return acpi_get_gpiod_by_index(adev, propname, index, info);
+
+	if (!is_acpi_data_node(fwnode))
+		return ERR_PTR(-ENODEV);
+
+	if (!propname)
+		return ERR_PTR(-EINVAL);
+
+	memset(&lookup, 0, sizeof(lookup));
+	lookup.index = index;
+
+	ret = acpi_gpio_property_lookup(fwnode, propname, index, &lookup);
+	if (ret)
 		return ERR_PTR(ret);
 
-	acpi_dev_free_resource_list(&resource_list);
-
-	if (lookup.desc && info) {
-		*info = lookup.info;
-		if (active_low)
-			info->active_low = active_low;
-	}
-
-	return lookup.desc ? lookup.desc : ERR_PTR(-ENOENT);
+	ret = acpi_gpio_resource_lookup(&lookup, info);
+	return ret ? ERR_PTR(ret) : lookup.desc;
 }
 
 /**
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 5db3445..c52a70f 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -2093,8 +2093,7 @@
 	} else if (is_acpi_node(fwnode)) {
 		struct acpi_gpio_info info;
 
-		desc = acpi_get_gpiod_by_index(to_acpi_node(fwnode), propname, 0,
-					       &info);
+		desc = acpi_node_get_gpiod(fwnode, propname, 0, &info);
 		if (!IS_ERR(desc))
 			active_low = info.active_low;
 	}
diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h
index bf34300..e69c715 100644
--- a/drivers/gpio/gpiolib.h
+++ b/drivers/gpio/gpiolib.h
@@ -42,6 +42,9 @@
 struct gpio_desc *acpi_get_gpiod_by_index(struct acpi_device *adev,
 					  const char *propname, int index,
 					  struct acpi_gpio_info *info);
+struct gpio_desc *acpi_node_get_gpiod(struct fwnode_handle *fwnode,
+				      const char *propname, int index,
+				      struct acpi_gpio_info *info);
 
 int acpi_gpio_count(struct device *dev, const char *con_id);
 #else
@@ -60,7 +63,12 @@
 {
 	return ERR_PTR(-ENOSYS);
 }
-
+static inline struct gpio_desc *
+acpi_node_get_gpiod(struct fwnode_handle *fwnode, const char *propname,
+		    int index, struct acpi_gpio_info *info)
+{
+	return ERR_PTR(-ENXIO);
+}
 static inline int acpi_gpio_count(struct device *dev, const char *con_id)
 {
 	return -ENODEV;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
index 77f1d7c..9416e0f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
@@ -672,8 +672,12 @@
 		/* disp clock */
 		adev->clock.default_dispclk =
 			le32_to_cpu(firmware_info->info_21.ulDefaultDispEngineClkFreq);
-		if (adev->clock.default_dispclk == 0)
-			adev->clock.default_dispclk = 54000; /* 540 Mhz */
+		/* set a reasonable default for DP */
+		if (adev->clock.default_dispclk < 53900) {
+			DRM_INFO("Changing default dispclk from %dMhz to 600Mhz\n",
+				 adev->clock.default_dispclk / 100);
+			adev->clock.default_dispclk = 60000;
+		}
 		adev->clock.dp_extclk =
 			le16_to_cpu(firmware_info->info_21.usUniphyDPModeExtClkFreq);
 		adev->clock.current_dispclk = adev->clock.default_dispclk;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index cb3c274..fd16652 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -177,7 +177,7 @@
 
 	/* get chunks */
 	INIT_LIST_HEAD(&p->validated);
-	chunk_array_user = (uint64_t __user *)(cs->in.chunks);
+	chunk_array_user = (uint64_t __user *)(unsigned long)(cs->in.chunks);
 	if (copy_from_user(chunk_array, chunk_array_user,
 			   sizeof(uint64_t)*cs->in.num_chunks)) {
 		ret = -EFAULT;
@@ -197,7 +197,7 @@
 		struct drm_amdgpu_cs_chunk user_chunk;
 		uint32_t __user *cdata;
 
-		chunk_ptr = (void __user *)chunk_array[i];
+		chunk_ptr = (void __user *)(unsigned long)chunk_array[i];
 		if (copy_from_user(&user_chunk, chunk_ptr,
 				       sizeof(struct drm_amdgpu_cs_chunk))) {
 			ret = -EFAULT;
@@ -208,7 +208,7 @@
 		p->chunks[i].length_dw = user_chunk.length_dw;
 
 		size = p->chunks[i].length_dw;
-		cdata = (void __user *)user_chunk.chunk_data;
+		cdata = (void __user *)(unsigned long)user_chunk.chunk_data;
 		p->chunks[i].user_ptr = cdata;
 
 		p->chunks[i].kdata = drm_malloc_ab(size, sizeof(uint32_t));
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
index e3d7077..dc29ed8 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
@@ -85,8 +85,6 @@
 	/* We borrow the event spin lock for protecting flip_status */
 	spin_lock_irqsave(&crtc->dev->event_lock, flags);
 
-	/* set the proper interrupt */
-	amdgpu_irq_get(adev, &adev->pageflip_irq, work->crtc_id);
 	/* do the flip (mmio) */
 	adev->mode_info.funcs->page_flip(adev, work->crtc_id, work->base);
 	/* set the flip status */
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index adb4835..b190c2a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -242,11 +242,11 @@
 	{0x1002, 0x985F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_MULLINS|AMD_IS_MOBILITY|AMD_IS_APU},
 #endif
 	/* topaz */
-	{0x1002, 0x6900, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ},
-	{0x1002, 0x6901, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ},
-	{0x1002, 0x6902, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ},
-	{0x1002, 0x6903, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ},
-	{0x1002, 0x6907, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ},
+	{0x1002, 0x6900, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ|AMD_EXP_HW_SUPPORT},
+	{0x1002, 0x6901, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ|AMD_EXP_HW_SUPPORT},
+	{0x1002, 0x6902, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ|AMD_EXP_HW_SUPPORT},
+	{0x1002, 0x6903, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ|AMD_EXP_HW_SUPPORT},
+	{0x1002, 0x6907, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ|AMD_EXP_HW_SUPPORT},
 	/* tonga */
 	{0x1002, 0x6920, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TONGA},
 	{0x1002, 0x6921, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TONGA},
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
index 8a122b1..96290d9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
@@ -402,3 +402,19 @@
 		return true;
 	return false;
 }
+
+void amdgpu_fbdev_restore_mode(struct amdgpu_device *adev)
+{
+	struct amdgpu_fbdev *afbdev = adev->mode_info.rfbdev;
+	struct drm_fb_helper *fb_helper;
+	int ret;
+
+	if (!afbdev)
+		return;
+
+	fb_helper = &afbdev->helper;
+
+	ret = drm_fb_helper_restore_fbdev_mode_unlocked(fb_helper);
+	if (ret)
+		DRM_DEBUG("failed to restore crtc mode\n");
+}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index 8c735f54..5d11e79 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -485,7 +485,7 @@
  * Outdated mess for old drm with Xorg being in charge (void function now).
  */
 /**
- * amdgpu_driver_firstopen_kms - drm callback for last close
+ * amdgpu_driver_lastclose_kms - drm callback for last close
  *
  * @dev: drm dev pointer
  *
@@ -493,6 +493,9 @@
  */
 void amdgpu_driver_lastclose_kms(struct drm_device *dev)
 {
+	struct amdgpu_device *adev = dev->dev_private;
+
+	amdgpu_fbdev_restore_mode(adev);
 	vga_switcheroo_process_delayed_switch();
 }
 
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h
index 64efe5b..7bd470d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h
@@ -567,6 +567,7 @@
 void amdgpu_fbdev_set_suspend(struct amdgpu_device *adev, int state);
 int amdgpu_fbdev_total_size(struct amdgpu_device *adev);
 bool amdgpu_fbdev_robj_is_fb(struct amdgpu_device *adev, struct amdgpu_bo *robj);
+void amdgpu_fbdev_restore_mode(struct amdgpu_device *adev);
 
 void amdgpu_fb_output_poll_changed(struct amdgpu_device *adev);
 
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
index efed115..ed2bbe5 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
@@ -294,10 +294,14 @@
 	struct amdgpu_device *adev = dev_get_drvdata(dev);
 	umode_t effective_mode = attr->mode;
 
-	/* Skip limit attributes if DPM is not enabled */
+	/* Skip attributes if DPM is not enabled */
 	if (!adev->pm.dpm_enabled &&
 	    (attr == &sensor_dev_attr_temp1_crit.dev_attr.attr ||
-	     attr == &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr))
+	     attr == &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr ||
+	     attr == &sensor_dev_attr_pwm1.dev_attr.attr ||
+	     attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr ||
+	     attr == &sensor_dev_attr_pwm1_max.dev_attr.attr ||
+	     attr == &sensor_dev_attr_pwm1_min.dev_attr.attr))
 		return 0;
 
 	/* Skip fan attributes if fan is not present */
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 1e14531..53d551f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -455,8 +455,10 @@
 		return -ENOMEM;
 
 	r = amdgpu_ib_get(ring, NULL, ndw * 4, ib);
-	if (r)
+	if (r) {
+		kfree(ib);
 		return r;
+	}
 	ib->length_dw = 0;
 
 	/* walk over the address space and update the page directory */
diff --git a/drivers/gpu/drm/amd/amdgpu/ci_dpm.c b/drivers/gpu/drm/amd/amdgpu/ci_dpm.c
index 82e8d07..a1a35a5 100644
--- a/drivers/gpu/drm/amd/amdgpu/ci_dpm.c
+++ b/drivers/gpu/drm/amd/amdgpu/ci_dpm.c
@@ -6185,6 +6185,11 @@
 	if (!amdgpu_dpm)
 		return 0;
 
+	/* init the sysfs and debugfs files late */
+	ret = amdgpu_pm_sysfs_init(adev);
+	if (ret)
+		return ret;
+
 	ret = ci_set_temperature_range(adev);
 	if (ret)
 		return ret;
@@ -6232,9 +6237,6 @@
 	adev->pm.dpm.current_ps = adev->pm.dpm.requested_ps = adev->pm.dpm.boot_ps;
 	if (amdgpu_dpm == 1)
 		amdgpu_pm_print_power_states(adev);
-	ret = amdgpu_pm_sysfs_init(adev);
-	if (ret)
-		goto dpm_failed;
 	mutex_unlock(&adev->pm.mutex);
 	DRM_INFO("amdgpu: dpm initialized\n");
 
diff --git a/drivers/gpu/drm/amd/amdgpu/cik.c b/drivers/gpu/drm/amd/amdgpu/cik.c
index 4b6ce74..484710c 100644
--- a/drivers/gpu/drm/amd/amdgpu/cik.c
+++ b/drivers/gpu/drm/amd/amdgpu/cik.c
@@ -1567,6 +1567,9 @@
 	int ret, i;
 	u16 tmp16;
 
+	if (pci_is_root_bus(adev->pdev->bus))
+		return;
+
 	if (amdgpu_pcie_gen2 == 0)
 		return;
 
diff --git a/drivers/gpu/drm/amd/amdgpu/cz_dpm.c b/drivers/gpu/drm/amd/amdgpu/cz_dpm.c
index 44fa96a..2e3373e 100644
--- a/drivers/gpu/drm/amd/amdgpu/cz_dpm.c
+++ b/drivers/gpu/drm/amd/amdgpu/cz_dpm.c
@@ -596,6 +596,12 @@
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
 	if (amdgpu_dpm) {
+		int ret;
+		/* init the sysfs and debugfs files late */
+		ret = amdgpu_pm_sysfs_init(adev);
+		if (ret)
+			return ret;
+
 		/* powerdown unused blocks for now */
 		cz_dpm_powergate_uvd(adev, true);
 		cz_dpm_powergate_vce(adev, true);
@@ -632,10 +638,6 @@
 	if (amdgpu_dpm == 1)
 		amdgpu_pm_print_power_states(adev);
 
-	ret = amdgpu_pm_sysfs_init(adev);
-	if (ret)
-		goto dpm_init_failed;
-
 	mutex_unlock(&adev->pm.mutex);
 	DRM_INFO("amdgpu: dpm initialized\n");
 
diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c
index e4d101b..d4c82b6 100644
--- a/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c
@@ -255,6 +255,24 @@
 		return RREG32(mmCRTC_STATUS_FRAME_COUNT + crtc_offsets[crtc]);
 }
 
+static void dce_v10_0_pageflip_interrupt_init(struct amdgpu_device *adev)
+{
+	unsigned i;
+
+	/* Enable pflip interrupts */
+	for (i = 0; i < adev->mode_info.num_crtc; i++)
+		amdgpu_irq_get(adev, &adev->pageflip_irq, i);
+}
+
+static void dce_v10_0_pageflip_interrupt_fini(struct amdgpu_device *adev)
+{
+	unsigned i;
+
+	/* Disable pflip interrupts */
+	for (i = 0; i < adev->mode_info.num_crtc; i++)
+		amdgpu_irq_put(adev, &adev->pageflip_irq, i);
+}
+
 /**
  * dce_v10_0_page_flip - pageflip callback.
  *
@@ -2663,9 +2681,10 @@
 		dce_v10_0_vga_enable(crtc, true);
 		amdgpu_atombios_crtc_blank(crtc, ATOM_DISABLE);
 		dce_v10_0_vga_enable(crtc, false);
-		/* Make sure VBLANK interrupt is still enabled */
+		/* Make sure VBLANK and PFLIP interrupts are still enabled */
 		type = amdgpu_crtc_idx_to_irq_type(adev, amdgpu_crtc->crtc_id);
 		amdgpu_irq_update(adev, &adev->crtc_irq, type);
+		amdgpu_irq_update(adev, &adev->pageflip_irq, type);
 		drm_vblank_post_modeset(dev, amdgpu_crtc->crtc_id);
 		dce_v10_0_crtc_load_lut(crtc);
 		break;
@@ -3025,6 +3044,8 @@
 		dce_v10_0_audio_enable(adev, &adev->mode_info.audio.pin[i], false);
 	}
 
+	dce_v10_0_pageflip_interrupt_init(adev);
+
 	return 0;
 }
 
@@ -3039,6 +3060,8 @@
 		dce_v10_0_audio_enable(adev, &adev->mode_info.audio.pin[i], false);
 	}
 
+	dce_v10_0_pageflip_interrupt_fini(adev);
+
 	return 0;
 }
 
@@ -3050,6 +3073,8 @@
 
 	dce_v10_0_hpd_fini(adev);
 
+	dce_v10_0_pageflip_interrupt_fini(adev);
+
 	return 0;
 }
 
@@ -3075,6 +3100,8 @@
 	/* initialize hpd */
 	dce_v10_0_hpd_init(adev);
 
+	dce_v10_0_pageflip_interrupt_init(adev);
+
 	return 0;
 }
 
@@ -3369,7 +3396,6 @@
 	spin_unlock_irqrestore(&adev->ddev->event_lock, flags);
 
 	drm_vblank_put(adev->ddev, amdgpu_crtc->crtc_id);
-	amdgpu_irq_put(adev, &adev->pageflip_irq, crtc_id);
 	queue_work(amdgpu_crtc->pflip_queue, &works->unpin_work);
 
 	return 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
index 6411e82..7e1cf5e 100644
--- a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
@@ -233,6 +233,24 @@
 		return RREG32(mmCRTC_STATUS_FRAME_COUNT + crtc_offsets[crtc]);
 }
 
+static void dce_v11_0_pageflip_interrupt_init(struct amdgpu_device *adev)
+{
+	unsigned i;
+
+	/* Enable pflip interrupts */
+	for (i = 0; i < adev->mode_info.num_crtc; i++)
+		amdgpu_irq_get(adev, &adev->pageflip_irq, i);
+}
+
+static void dce_v11_0_pageflip_interrupt_fini(struct amdgpu_device *adev)
+{
+	unsigned i;
+
+	/* Disable pflip interrupts */
+	for (i = 0; i < adev->mode_info.num_crtc; i++)
+		amdgpu_irq_put(adev, &adev->pageflip_irq, i);
+}
+
 /**
  * dce_v11_0_page_flip - pageflip callback.
  *
@@ -2640,9 +2658,10 @@
 		dce_v11_0_vga_enable(crtc, true);
 		amdgpu_atombios_crtc_blank(crtc, ATOM_DISABLE);
 		dce_v11_0_vga_enable(crtc, false);
-		/* Make sure VBLANK interrupt is still enabled */
+		/* Make sure VBLANK and PFLIP interrupts are still enabled */
 		type = amdgpu_crtc_idx_to_irq_type(adev, amdgpu_crtc->crtc_id);
 		amdgpu_irq_update(adev, &adev->crtc_irq, type);
+		amdgpu_irq_update(adev, &adev->pageflip_irq, type);
 		drm_vblank_post_modeset(dev, amdgpu_crtc->crtc_id);
 		dce_v11_0_crtc_load_lut(crtc);
 		break;
@@ -2888,7 +2907,7 @@
 
 	switch (adev->asic_type) {
 	case CHIP_CARRIZO:
-		adev->mode_info.num_crtc = 4;
+		adev->mode_info.num_crtc = 3;
 		adev->mode_info.num_hpd = 6;
 		adev->mode_info.num_dig = 9;
 		break;
@@ -3000,6 +3019,8 @@
 		dce_v11_0_audio_enable(adev, &adev->mode_info.audio.pin[i], false);
 	}
 
+	dce_v11_0_pageflip_interrupt_init(adev);
+
 	return 0;
 }
 
@@ -3014,6 +3035,8 @@
 		dce_v11_0_audio_enable(adev, &adev->mode_info.audio.pin[i], false);
 	}
 
+	dce_v11_0_pageflip_interrupt_fini(adev);
+
 	return 0;
 }
 
@@ -3025,6 +3048,8 @@
 
 	dce_v11_0_hpd_fini(adev);
 
+	dce_v11_0_pageflip_interrupt_fini(adev);
+
 	return 0;
 }
 
@@ -3051,6 +3076,8 @@
 	/* initialize hpd */
 	dce_v11_0_hpd_init(adev);
 
+	dce_v11_0_pageflip_interrupt_init(adev);
+
 	return 0;
 }
 
@@ -3345,7 +3372,6 @@
 	spin_unlock_irqrestore(&adev->ddev->event_lock, flags);
 
 	drm_vblank_put(adev->ddev, amdgpu_crtc->crtc_id);
-	amdgpu_irq_put(adev, &adev->pageflip_irq, crtc_id);
 	queue_work(amdgpu_crtc->pflip_queue, &works->unpin_work);
 
 	return 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c
index c86911c..34b9c2a 100644
--- a/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c
@@ -204,6 +204,24 @@
 		return RREG32(mmCRTC_STATUS_FRAME_COUNT + crtc_offsets[crtc]);
 }
 
+static void dce_v8_0_pageflip_interrupt_init(struct amdgpu_device *adev)
+{
+	unsigned i;
+
+	/* Enable pflip interrupts */
+	for (i = 0; i < adev->mode_info.num_crtc; i++)
+		amdgpu_irq_get(adev, &adev->pageflip_irq, i);
+}
+
+static void dce_v8_0_pageflip_interrupt_fini(struct amdgpu_device *adev)
+{
+	unsigned i;
+
+	/* Disable pflip interrupts */
+	for (i = 0; i < adev->mode_info.num_crtc; i++)
+		amdgpu_irq_put(adev, &adev->pageflip_irq, i);
+}
+
 /**
  * dce_v8_0_page_flip - pageflip callback.
  *
@@ -2575,9 +2593,10 @@
 		dce_v8_0_vga_enable(crtc, true);
 		amdgpu_atombios_crtc_blank(crtc, ATOM_DISABLE);
 		dce_v8_0_vga_enable(crtc, false);
-		/* Make sure VBLANK interrupt is still enabled */
+		/* Make sure VBLANK and PFLIP interrupts are still enabled */
 		type = amdgpu_crtc_idx_to_irq_type(adev, amdgpu_crtc->crtc_id);
 		amdgpu_irq_update(adev, &adev->crtc_irq, type);
+		amdgpu_irq_update(adev, &adev->pageflip_irq, type);
 		drm_vblank_post_modeset(dev, amdgpu_crtc->crtc_id);
 		dce_v8_0_crtc_load_lut(crtc);
 		break;
@@ -2933,6 +2952,8 @@
 		dce_v8_0_audio_enable(adev, &adev->mode_info.audio.pin[i], false);
 	}
 
+	dce_v8_0_pageflip_interrupt_init(adev);
+
 	return 0;
 }
 
@@ -2947,6 +2968,8 @@
 		dce_v8_0_audio_enable(adev, &adev->mode_info.audio.pin[i], false);
 	}
 
+	dce_v8_0_pageflip_interrupt_fini(adev);
+
 	return 0;
 }
 
@@ -2958,6 +2981,8 @@
 
 	dce_v8_0_hpd_fini(adev);
 
+	dce_v8_0_pageflip_interrupt_fini(adev);
+
 	return 0;
 }
 
@@ -2981,6 +3006,8 @@
 	/* initialize hpd */
 	dce_v8_0_hpd_init(adev);
 
+	dce_v8_0_pageflip_interrupt_init(adev);
+
 	return 0;
 }
 
@@ -3376,7 +3403,6 @@
 	spin_unlock_irqrestore(&adev->ddev->event_lock, flags);
 
 	drm_vblank_put(adev->ddev, amdgpu_crtc->crtc_id);
-	amdgpu_irq_put(adev, &adev->pageflip_irq, crtc_id);
 	queue_work(amdgpu_crtc->pflip_queue, &works->unpin_work);
 
 	return 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/kv_dpm.c b/drivers/gpu/drm/amd/amdgpu/kv_dpm.c
index 94ec04a..7e9154c 100644
--- a/drivers/gpu/drm/amd/amdgpu/kv_dpm.c
+++ b/drivers/gpu/drm/amd/amdgpu/kv_dpm.c
@@ -2995,6 +2995,15 @@
 {
 	/* powerdown unused blocks for now */
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	int ret;
+
+	if (!amdgpu_dpm)
+		return 0;
+
+	/* init the sysfs and debugfs files late */
+	ret = amdgpu_pm_sysfs_init(adev);
+	if (ret)
+		return ret;
 
 	kv_dpm_powergate_acp(adev, true);
 	kv_dpm_powergate_samu(adev, true);
@@ -3038,9 +3047,6 @@
 	adev->pm.dpm.current_ps = adev->pm.dpm.requested_ps = adev->pm.dpm.boot_ps;
 	if (amdgpu_dpm == 1)
 		amdgpu_pm_print_power_states(adev);
-	ret = amdgpu_pm_sysfs_init(adev);
-	if (ret)
-		goto dpm_failed;
 	mutex_unlock(&adev->pm.mutex);
 	DRM_INFO("amdgpu: dpm initialized\n");
 
diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c
index b55ceb1..0bac8702 100644
--- a/drivers/gpu/drm/amd/amdgpu/vi.c
+++ b/drivers/gpu/drm/amd/amdgpu/vi.c
@@ -1005,6 +1005,9 @@
 	u32 mask;
 	int ret;
 
+	if (pci_is_root_bus(adev->pdev->bus))
+		return;
+
 	if (amdgpu_pcie_gen2 == 0)
 		return;
 
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index bf27a07..809959d 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -1194,17 +1194,18 @@
 
 		list_for_each_entry(port, &mstb->ports, next) {
 			if (port->port_num == port_num) {
-				if (!port->mstb) {
+				mstb = port->mstb;
+				if (!mstb) {
 					DRM_ERROR("failed to lookup MSTB with lct %d, rad %02x\n", lct, rad[0]);
-					return NULL;
+					goto out;
 				}
 
-				mstb = port->mstb;
 				break;
 			}
 		}
 	}
 	kref_get(&mstb->kref);
+out:
 	mutex_unlock(&mgr->lock);
 	return mstb;
 }
@@ -2801,12 +2802,13 @@
 	if (msgs[num - 1].flags & I2C_M_RD)
 		reading = true;
 
-	if (!reading) {
+	if (!reading || (num - 1 > DP_REMOTE_I2C_READ_MAX_TRANSACTIONS)) {
 		DRM_DEBUG_KMS("Unsupported I2C transaction for MST device\n");
 		ret = -EIO;
 		goto out;
 	}
 
+	memset(&msg, 0, sizeof(msg));
 	msg.req_type = DP_REMOTE_I2C_READ;
 	msg.u.i2c_read.num_transactions = num - 1;
 	msg.u.i2c_read.port_number = port->port_num;
diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c
index 0f6cd33..684bd4a 100644
--- a/drivers/gpu/drm/drm_sysfs.c
+++ b/drivers/gpu/drm/drm_sysfs.c
@@ -235,18 +235,12 @@
 			   char *buf)
 {
 	struct drm_connector *connector = to_drm_connector(device);
-	struct drm_device *dev = connector->dev;
-	uint64_t dpms_status;
-	int ret;
+	int dpms;
 
-	ret = drm_object_property_get_value(&connector->base,
-					    dev->mode_config.dpms_property,
-					    &dpms_status);
-	if (ret)
-		return 0;
+	dpms = READ_ONCE(connector->dpms);
 
 	return snprintf(buf, PAGE_SIZE, "%s\n",
-			drm_get_dpms_name((int)dpms_status));
+			drm_get_dpms_name(dpms));
 }
 
 static ssize_t enabled_show(struct device *device,
diff --git a/drivers/gpu/drm/i915/i915_gem_shrinker.c b/drivers/gpu/drm/i915/i915_gem_shrinker.c
index f6ecbda..6743417 100644
--- a/drivers/gpu/drm/i915/i915_gem_shrinker.c
+++ b/drivers/gpu/drm/i915/i915_gem_shrinker.c
@@ -143,7 +143,7 @@
 }
 
 /**
- * i915_gem_shrink - Shrink buffer object caches completely
+ * i915_gem_shrink_all - Shrink buffer object caches completely
  * @dev_priv: i915 device
  *
  * This is a simple wraper around i915_gem_shrink() to aggressively shrink all
diff --git a/drivers/gpu/drm/i915/i915_gem_userptr.c b/drivers/gpu/drm/i915/i915_gem_userptr.c
index 8fd431b..a96b900 100644
--- a/drivers/gpu/drm/i915/i915_gem_userptr.c
+++ b/drivers/gpu/drm/i915/i915_gem_userptr.c
@@ -804,7 +804,10 @@
  * Also note, that the object created here is not currently a "first class"
  * object, in that several ioctls are banned. These are the CPU access
  * ioctls: mmap(), pwrite and pread. In practice, you are expected to use
- * direct access via your pointer rather than use those ioctls.
+ * direct access via your pointer rather than use those ioctls. Another
+ * restriction is that we do not allow userptr surfaces to be pinned to the
+ * hardware and so we reject any attempt to create a framebuffer out of a
+ * userptr.
  *
  * If you think this is a good interface to use to pass GPU memory between
  * drivers, please use dma-buf instead. In fact, wherever possible use
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index cf418be..b2270d5 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -1724,6 +1724,15 @@
 			   I915_READ(DPLL(!crtc->pipe)) | DPLL_DVO_2X_MODE);
 	}
 
+	/*
+	 * Apparently we need to have VGA mode enabled prior to changing
+	 * the P1/P2 dividers. Otherwise the DPLL will keep using the old
+	 * dividers, even though the register value does change.
+	 */
+	I915_WRITE(reg, 0);
+
+	I915_WRITE(reg, dpll);
+
 	/* Wait for the clocks to stabilize. */
 	POSTING_READ(reg);
 	udelay(150);
@@ -14107,6 +14116,11 @@
 	struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
 	struct drm_i915_gem_object *obj = intel_fb->obj;
 
+	if (obj->userptr.mm) {
+		DRM_DEBUG("attempting to use a userptr for a framebuffer, denied\n");
+		return -EINVAL;
+	}
+
 	return drm_gem_handle_create(file, &obj->base, handle);
 }
 
@@ -14897,9 +14911,19 @@
 	/* restore vblank interrupts to correct state */
 	drm_crtc_vblank_reset(&crtc->base);
 	if (crtc->active) {
+		struct intel_plane *plane;
+
 		drm_calc_timestamping_constants(&crtc->base, &crtc->base.hwmode);
 		update_scanline_offset(crtc);
 		drm_crtc_vblank_on(&crtc->base);
+
+		/* Disable everything but the primary plane */
+		for_each_intel_plane_on_crtc(dev, crtc, plane) {
+			if (plane->base.type == DRM_PLANE_TYPE_PRIMARY)
+				continue;
+
+			plane->disable_plane(&plane->base, &crtc->base);
+		}
 	}
 
 	/* We need to sanitize the plane -> pipe mapping first because this will
@@ -15067,38 +15091,25 @@
 	i915_redisable_vga_power_on(dev);
 }
 
-static bool primary_get_hw_state(struct intel_crtc *crtc)
+static bool primary_get_hw_state(struct intel_plane *plane)
 {
-	struct drm_i915_private *dev_priv = crtc->base.dev->dev_private;
+	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
 
-	return !!(I915_READ(DSPCNTR(crtc->plane)) & DISPLAY_PLANE_ENABLE);
+	return I915_READ(DSPCNTR(plane->plane)) & DISPLAY_PLANE_ENABLE;
 }
 
-static void readout_plane_state(struct intel_crtc *crtc,
-				struct intel_crtc_state *crtc_state)
+/* FIXME read out full plane state for all planes */
+static void readout_plane_state(struct intel_crtc *crtc)
 {
-	struct intel_plane *p;
-	struct intel_plane_state *plane_state;
-	bool active = crtc_state->base.active;
+	struct drm_plane *primary = crtc->base.primary;
+	struct intel_plane_state *plane_state =
+		to_intel_plane_state(primary->state);
 
-	for_each_intel_plane(crtc->base.dev, p) {
-		if (crtc->pipe != p->pipe)
-			continue;
+	plane_state->visible =
+		primary_get_hw_state(to_intel_plane(primary));
 
-		plane_state = to_intel_plane_state(p->base.state);
-
-		if (p->base.type == DRM_PLANE_TYPE_PRIMARY) {
-			plane_state->visible = primary_get_hw_state(crtc);
-			if (plane_state->visible)
-				crtc->base.state->plane_mask |=
-					1 << drm_plane_index(&p->base);
-		} else {
-			if (active)
-				p->disable_plane(&p->base, &crtc->base);
-
-			plane_state->visible = false;
-		}
-	}
+	if (plane_state->visible)
+		crtc->base.state->plane_mask |= 1 << drm_plane_index(primary);
 }
 
 static void intel_modeset_readout_hw_state(struct drm_device *dev)
@@ -15121,34 +15132,7 @@
 		crtc->base.state->active = crtc->active;
 		crtc->base.enabled = crtc->active;
 
-		memset(&crtc->base.mode, 0, sizeof(crtc->base.mode));
-		if (crtc->base.state->active) {
-			intel_mode_from_pipe_config(&crtc->base.mode, crtc->config);
-			intel_mode_from_pipe_config(&crtc->base.state->adjusted_mode, crtc->config);
-			WARN_ON(drm_atomic_set_mode_for_crtc(crtc->base.state, &crtc->base.mode));
-
-			/*
-			 * The initial mode needs to be set in order to keep
-			 * the atomic core happy. It wants a valid mode if the
-			 * crtc's enabled, so we do the above call.
-			 *
-			 * At this point some state updated by the connectors
-			 * in their ->detect() callback has not run yet, so
-			 * no recalculation can be done yet.
-			 *
-			 * Even if we could do a recalculation and modeset
-			 * right now it would cause a double modeset if
-			 * fbdev or userspace chooses a different initial mode.
-			 *
-			 * If that happens, someone indicated they wanted a
-			 * mode change, which means it's safe to do a full
-			 * recalculation.
-			 */
-			crtc->base.state->mode.private_flags = I915_MODE_FLAG_INHERITED;
-		}
-
-		crtc->base.hwmode = crtc->config->base.adjusted_mode;
-		readout_plane_state(crtc, to_intel_crtc_state(crtc->base.state));
+		readout_plane_state(crtc);
 
 		DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n",
 			      crtc->base.base.id,
@@ -15207,6 +15191,36 @@
 			      connector->base.name,
 			      connector->base.encoder ? "enabled" : "disabled");
 	}
+
+	for_each_intel_crtc(dev, crtc) {
+		crtc->base.hwmode = crtc->config->base.adjusted_mode;
+
+		memset(&crtc->base.mode, 0, sizeof(crtc->base.mode));
+		if (crtc->base.state->active) {
+			intel_mode_from_pipe_config(&crtc->base.mode, crtc->config);
+			intel_mode_from_pipe_config(&crtc->base.state->adjusted_mode, crtc->config);
+			WARN_ON(drm_atomic_set_mode_for_crtc(crtc->base.state, &crtc->base.mode));
+
+			/*
+			 * The initial mode needs to be set in order to keep
+			 * the atomic core happy. It wants a valid mode if the
+			 * crtc's enabled, so we do the above call.
+			 *
+			 * At this point some state updated by the connectors
+			 * in their ->detect() callback has not run yet, so
+			 * no recalculation can be done yet.
+			 *
+			 * Even if we could do a recalculation and modeset
+			 * right now it would cause a double modeset if
+			 * fbdev or userspace chooses a different initial mode.
+			 *
+			 * If that happens, someone indicated they wanted a
+			 * mode change, which means it's safe to do a full
+			 * recalculation.
+			 */
+			crtc->base.state->mode.private_flags = I915_MODE_FLAG_INHERITED;
+		}
+	}
 }
 
 /* Scan out the current hw modeset state,
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index 7412cae..29dd448 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -1659,6 +1659,7 @@
 	if (flush_domains) {
 		flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH;
 		flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH;
+		flags |= PIPE_CONTROL_FLUSH_ENABLE;
 	}
 
 	if (invalidate_domains) {
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 6e6b8db..61b451f 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -347,6 +347,7 @@
 	if (flush_domains) {
 		flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH;
 		flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH;
+		flags |= PIPE_CONTROL_FLUSH_ENABLE;
 	}
 	if (invalidate_domains) {
 		flags |= PIPE_CONTROL_TLB_INVALIDATE;
@@ -418,6 +419,7 @@
 	if (flush_domains) {
 		flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH;
 		flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH;
+		flags |= PIPE_CONTROL_FLUSH_ENABLE;
 	}
 	if (invalidate_domains) {
 		flags |= PIPE_CONTROL_TLB_INVALIDATE;
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
index cc6c228..e905c00 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.c
+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
@@ -469,9 +469,13 @@
 	if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) {
 		dev->mode_config.max_width = 4096;
 		dev->mode_config.max_height = 4096;
-	} else {
+	} else
+	if (drm->device.info.family < NV_DEVICE_INFO_V0_FERMI) {
 		dev->mode_config.max_width = 8192;
 		dev->mode_config.max_height = 8192;
+	} else {
+		dev->mode_config.max_width = 16384;
+		dev->mode_config.max_height = 16384;
 	}
 
 	dev->mode_config.preferred_depth = 24;
diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
index 2791701..59f27e7 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
@@ -178,8 +178,30 @@
 	return 0;
 }
 
+static int
+nouveau_fbcon_open(struct fb_info *info, int user)
+{
+	struct nouveau_fbdev *fbcon = info->par;
+	struct nouveau_drm *drm = nouveau_drm(fbcon->dev);
+	int ret = pm_runtime_get_sync(drm->dev->dev);
+	if (ret < 0 && ret != -EACCES)
+		return ret;
+	return 0;
+}
+
+static int
+nouveau_fbcon_release(struct fb_info *info, int user)
+{
+	struct nouveau_fbdev *fbcon = info->par;
+	struct nouveau_drm *drm = nouveau_drm(fbcon->dev);
+	pm_runtime_put(drm->dev->dev);
+	return 0;
+}
+
 static struct fb_ops nouveau_fbcon_ops = {
 	.owner = THIS_MODULE,
+	.fb_open = nouveau_fbcon_open,
+	.fb_release = nouveau_fbcon_release,
 	.fb_check_var = drm_fb_helper_check_var,
 	.fb_set_par = drm_fb_helper_set_par,
 	.fb_fillrect = nouveau_fbcon_fillrect,
@@ -195,6 +217,8 @@
 
 static struct fb_ops nouveau_fbcon_sw_ops = {
 	.owner = THIS_MODULE,
+	.fb_open = nouveau_fbcon_open,
+	.fb_release = nouveau_fbcon_release,
 	.fb_check_var = drm_fb_helper_check_var,
 	.fb_set_par = drm_fb_helper_set_par,
 	.fb_fillrect = drm_fb_helper_cfb_fillrect,
diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c
index 2c99815..41be584 100644
--- a/drivers/gpu/drm/nouveau/nouveau_gem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_gem.c
@@ -227,11 +227,12 @@
 	struct nouveau_bo *nvbo = nouveau_gem_object(gem);
 	struct nvkm_vma *vma;
 
-	if (nvbo->bo.mem.mem_type == TTM_PL_TT)
+	if (is_power_of_2(nvbo->valid_domains))
+		rep->domain = nvbo->valid_domains;
+	else if (nvbo->bo.mem.mem_type == TTM_PL_TT)
 		rep->domain = NOUVEAU_GEM_DOMAIN_GART;
 	else
 		rep->domain = NOUVEAU_GEM_DOMAIN_VRAM;
-
 	rep->offset = nvbo->bo.offset;
 	if (cli->vm) {
 		vma = nouveau_bo_vma_find(nvbo, cli->vm);
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/init.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/init.c
index 65af314..a7d69ce 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/init.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/init.c
@@ -267,6 +267,12 @@
 		index = NVKM_I2C_BUS_PRI;
 		if (init->outp && init->outp->i2c_upper_default)
 			index = NVKM_I2C_BUS_SEC;
+	} else
+	if (index == 0x80) {
+		index = NVKM_I2C_BUS_PRI;
+	} else
+	if (index == 0x81) {
+		index = NVKM_I2C_BUS_SEC;
 	}
 
 	bus = nvkm_i2c_bus_find(i2c, index);
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/priv.h
index e0ec2a6..212800e 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/priv.h
@@ -8,7 +8,10 @@
 	void *(*init)(struct nvkm_bios *, const char *);
 	void  (*fini)(void *);
 	u32   (*read)(void *, u32 offset, u32 length, struct nvkm_bios *);
+	u32   (*size)(void *);
 	bool rw;
+	bool ignore_checksum;
+	bool no_pcir;
 };
 
 int nvbios_extend(struct nvkm_bios *, u32 length);
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadow.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadow.c
index 792f017..b2557e8 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadow.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadow.c
@@ -45,7 +45,7 @@
 		u32 read = mthd->func->read(data, start, limit - start, bios);
 		bios->size = start + read;
 	}
-	return bios->size >= limit;
+	return bios->size >= upto;
 }
 
 static int
@@ -55,14 +55,22 @@
 	struct nvbios_image image;
 	int score = 1;
 
-	if (!shadow_fetch(bios, mthd, offset + 0x1000)) {
-		nvkm_debug(subdev, "%08x: header fetch failed\n", offset);
-		return 0;
-	}
+	if (mthd->func->no_pcir) {
+		image.base = 0;
+		image.type = 0;
+		image.size = mthd->func->size(mthd->data);
+		image.last = 1;
+	} else {
+		if (!shadow_fetch(bios, mthd, offset + 0x1000)) {
+			nvkm_debug(subdev, "%08x: header fetch failed\n",
+				   offset);
+			return 0;
+		}
 
-	if (!nvbios_image(bios, idx, &image)) {
-		nvkm_debug(subdev, "image %d invalid\n", idx);
-		return 0;
+		if (!nvbios_image(bios, idx, &image)) {
+			nvkm_debug(subdev, "image %d invalid\n", idx);
+			return 0;
+		}
 	}
 	nvkm_debug(subdev, "%08x: type %02x, %d bytes\n",
 		   image.base, image.type, image.size);
@@ -74,7 +82,8 @@
 
 	switch (image.type) {
 	case 0x00:
-		if (nvbios_checksum(&bios->data[image.base], image.size)) {
+		if (!mthd->func->ignore_checksum &&
+		    nvbios_checksum(&bios->data[image.base], image.size)) {
 			nvkm_debug(subdev, "%08x: checksum failed\n",
 				   image.base);
 			if (mthd->func->rw)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowof.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowof.c
index bd60d7d..4bf486b 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowof.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowof.c
@@ -21,6 +21,7 @@
  *
  */
 #include "priv.h"
+
 #include <core/pci.h>
 
 #if defined(__powerpc__)
@@ -33,17 +34,26 @@
 of_read(void *data, u32 offset, u32 length, struct nvkm_bios *bios)
 {
 	struct priv *priv = data;
-	if (offset + length <= priv->size) {
+	if (offset < priv->size) {
+		length = min_t(u32, length, priv->size - offset);
 		memcpy_fromio(bios->data + offset, priv->data + offset, length);
 		return length;
 	}
 	return 0;
 }
 
+static u32
+of_size(void *data)
+{
+	struct priv *priv = data;
+	return priv->size;
+}
+
 static void *
 of_init(struct nvkm_bios *bios, const char *name)
 {
-	struct pci_dev *pdev = bios->subdev.device->func->pci(bios->subdev.device)->pdev;
+	struct nvkm_device *device = bios->subdev.device;
+	struct pci_dev *pdev = device->func->pci(device)->pdev;
 	struct device_node *dn;
 	struct priv *priv;
 	if (!(dn = pci_device_to_OF_node(pdev)))
@@ -62,7 +72,10 @@
 	.init = of_init,
 	.fini = (void(*)(void *))kfree,
 	.read = of_read,
+	.size = of_size,
 	.rw = false,
+	.ignore_checksum = true,
+	.no_pcir = true,
 };
 #else
 const struct nvbios_source
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.c
index 814cb51..385a90f 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.c
@@ -35,6 +35,8 @@
 nvkm_device_agp_quirks[] = {
 	/* VIA Apollo PRO133x / GeForce FX 5600 Ultra - fdo#20341 */
 	{ PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_NVIDIA, 0x0311, 2 },
+	/* SiS 761 does not support AGP cards, use PCI mode */
+	{ PCI_VENDOR_ID_SI, 0x0761, PCI_ANY_ID, PCI_ANY_ID, 0 },
 	{},
 };
 
@@ -137,8 +139,10 @@
 	while (quirk->hostbridge_vendor) {
 		if (info.device->vendor == quirk->hostbridge_vendor &&
 		    info.device->device == quirk->hostbridge_device &&
-		    pci->pdev->vendor == quirk->chip_vendor &&
-		    pci->pdev->device == quirk->chip_device) {
+		    (quirk->chip_vendor == (u16)PCI_ANY_ID ||
+		    pci->pdev->vendor == quirk->chip_vendor) &&
+		    (quirk->chip_device == (u16)PCI_ANY_ID ||
+		    pci->pdev->device == quirk->chip_device)) {
 			nvkm_info(subdev, "forcing default agp mode to %dX, "
 					  "use NvAGP=<mode> to override\n",
 				  quirk->mode);
diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c
index 4649bd2..183aea1 100644
--- a/drivers/gpu/drm/qxl/qxl_display.c
+++ b/drivers/gpu/drm/qxl/qxl_display.c
@@ -244,6 +244,10 @@
 	ret = qxl_bo_reserve(bo, false);
 	if (ret)
 		return ret;
+	ret = qxl_bo_pin(bo, bo->type, NULL);
+	qxl_bo_unreserve(bo);
+	if (ret)
+		return ret;
 
 	qxl_draw_dirty_fb(qdev, qfb_src, bo, 0, 0,
 			  &norect, one_clip_rect, inc);
@@ -257,7 +261,11 @@
 	}
 	drm_vblank_put(dev, qcrtc->index);
 
-	qxl_bo_unreserve(bo);
+	ret = qxl_bo_reserve(bo, false);
+	if (!ret) {
+		qxl_bo_unpin(bo);
+		qxl_bo_unreserve(bo);
+	}
 
 	return 0;
 }
diff --git a/drivers/gpu/drm/qxl/qxl_fb.c b/drivers/gpu/drm/qxl/qxl_fb.c
index 41c422f..c4a5526 100644
--- a/drivers/gpu/drm/qxl/qxl_fb.c
+++ b/drivers/gpu/drm/qxl/qxl_fb.c
@@ -144,14 +144,17 @@
 
 	spin_lock_irqsave(&qfbdev->dirty.lock, flags);
 
-	if (qfbdev->dirty.y1 < y)
-		y = qfbdev->dirty.y1;
-	if (qfbdev->dirty.y2 > y2)
-		y2 = qfbdev->dirty.y2;
-	if (qfbdev->dirty.x1 < x)
-		x = qfbdev->dirty.x1;
-	if (qfbdev->dirty.x2 > x2)
-		x2 = qfbdev->dirty.x2;
+	if ((qfbdev->dirty.y2 - qfbdev->dirty.y1) &&
+	    (qfbdev->dirty.x2 - qfbdev->dirty.x1)) {
+		if (qfbdev->dirty.y1 < y)
+			y = qfbdev->dirty.y1;
+		if (qfbdev->dirty.y2 > y2)
+			y2 = qfbdev->dirty.y2;
+		if (qfbdev->dirty.x1 < x)
+			x = qfbdev->dirty.x1;
+		if (qfbdev->dirty.x2 > x2)
+			x2 = qfbdev->dirty.x2;
+	}
 
 	qfbdev->dirty.x1 = x;
 	qfbdev->dirty.x2 = x2;
diff --git a/drivers/gpu/drm/qxl/qxl_release.c b/drivers/gpu/drm/qxl/qxl_release.c
index b66ec33..4efa8e2 100644
--- a/drivers/gpu/drm/qxl/qxl_release.c
+++ b/drivers/gpu/drm/qxl/qxl_release.c
@@ -307,7 +307,7 @@
 		idr_ret = qxl_release_alloc(qdev, QXL_RELEASE_SURFACE_CMD, release);
 		if (idr_ret < 0)
 			return idr_ret;
-		bo = qxl_bo_ref(to_qxl_bo(entry->tv.bo));
+		bo = to_qxl_bo(entry->tv.bo);
 
 		(*release)->release_offset = create_rel->release_offset + 64;
 
@@ -316,8 +316,6 @@
 		info = qxl_release_map(qdev, *release);
 		info->id = idr_ret;
 		qxl_release_unmap(qdev, *release, info);
-
-		qxl_bo_unref(&bo);
 		return 0;
 	}
 
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index d2e9e9e..6743174 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -1633,18 +1633,8 @@
 	radeon_fbdev_init(rdev);
 	drm_kms_helper_poll_init(rdev->ddev);
 
-	if (rdev->pm.dpm_enabled) {
-		/* do dpm late init */
-		ret = radeon_pm_late_init(rdev);
-		if (ret) {
-			rdev->pm.dpm_enabled = false;
-			DRM_ERROR("radeon_pm_late_init failed, disabling dpm\n");
-		}
-		/* set the dpm state for PX since there won't be
-		 * a modeset to call this.
-		 */
-		radeon_pm_compute_clocks(rdev);
-	}
+	/* do pm late init */
+	ret = radeon_pm_late_init(rdev);
 
 	return 0;
 }
diff --git a/drivers/gpu/drm/radeon/radeon_dp_mst.c b/drivers/gpu/drm/radeon/radeon_dp_mst.c
index 6cddae4..744f5c4 100644
--- a/drivers/gpu/drm/radeon/radeon_dp_mst.c
+++ b/drivers/gpu/drm/radeon/radeon_dp_mst.c
@@ -283,6 +283,7 @@
 	radeon_connector->mst_encoder = radeon_dp_create_fake_mst_encoder(master);
 
 	drm_object_attach_property(&connector->base, dev->mode_config.path_property, 0);
+	drm_object_attach_property(&connector->base, dev->mode_config.tile_property, 0);
 	drm_mode_connector_set_path_property(connector, pathprop);
 
 	return connector;
diff --git a/drivers/gpu/drm/radeon/radeon_fb.c b/drivers/gpu/drm/radeon/radeon_fb.c
index 1aa657f..26da2f4 100644
--- a/drivers/gpu/drm/radeon/radeon_fb.c
+++ b/drivers/gpu/drm/radeon/radeon_fb.c
@@ -397,3 +397,19 @@
 {
 	drm_fb_helper_remove_one_connector(&rdev->mode_info.rfbdev->helper, connector);
 }
+
+void radeon_fbdev_restore_mode(struct radeon_device *rdev)
+{
+	struct radeon_fbdev *rfbdev = rdev->mode_info.rfbdev;
+	struct drm_fb_helper *fb_helper;
+	int ret;
+
+	if (!rfbdev)
+		return;
+
+	fb_helper = &rfbdev->helper;
+
+	ret = drm_fb_helper_restore_fbdev_mode_unlocked(fb_helper);
+	if (ret)
+		DRM_DEBUG("failed to restore crtc mode\n");
+}
diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index 4a119c2..0e932bf 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -598,7 +598,7 @@
  * Outdated mess for old drm with Xorg being in charge (void function now).
  */
 /**
- * radeon_driver_firstopen_kms - drm callback for last close
+ * radeon_driver_lastclose_kms - drm callback for last close
  *
  * @dev: drm dev pointer
  *
@@ -606,6 +606,9 @@
  */
 void radeon_driver_lastclose_kms(struct drm_device *dev)
 {
+	struct radeon_device *rdev = dev->dev_private;
+
+	radeon_fbdev_restore_mode(rdev);
 	vga_switcheroo_process_delayed_switch();
 }
 
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h
index aecc3e3..457b026 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -980,6 +980,7 @@
 void radeon_fbdev_fini(struct radeon_device *rdev);
 void radeon_fbdev_set_suspend(struct radeon_device *rdev, int state);
 bool radeon_fbdev_robj_is_fb(struct radeon_device *rdev, struct radeon_bo *robj);
+void radeon_fbdev_restore_mode(struct radeon_device *rdev);
 
 void radeon_fb_output_poll_changed(struct radeon_device *rdev);
 
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index 05751f3..6a0a176 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -717,10 +717,14 @@
 	struct radeon_device *rdev = dev_get_drvdata(dev);
 	umode_t effective_mode = attr->mode;
 
-	/* Skip limit attributes if DPM is not enabled */
+	/* Skip attributes if DPM is not enabled */
 	if (rdev->pm.pm_method != PM_METHOD_DPM &&
 	    (attr == &sensor_dev_attr_temp1_crit.dev_attr.attr ||
-	     attr == &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr))
+	     attr == &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr ||
+	     attr == &sensor_dev_attr_pwm1.dev_attr.attr ||
+	     attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr ||
+	     attr == &sensor_dev_attr_pwm1_max.dev_attr.attr ||
+	     attr == &sensor_dev_attr_pwm1_min.dev_attr.attr))
 		return 0;
 
 	/* Skip fan attributes if fan is not present */
@@ -1326,14 +1330,6 @@
 	INIT_DELAYED_WORK(&rdev->pm.dynpm_idle_work, radeon_dynpm_idle_work_handler);
 
 	if (rdev->pm.num_power_states > 1) {
-		/* where's the best place to put these? */
-		ret = device_create_file(rdev->dev, &dev_attr_power_profile);
-		if (ret)
-			DRM_ERROR("failed to create device file for power profile\n");
-		ret = device_create_file(rdev->dev, &dev_attr_power_method);
-		if (ret)
-			DRM_ERROR("failed to create device file for power method\n");
-
 		if (radeon_debugfs_pm_init(rdev)) {
 			DRM_ERROR("Failed to register debugfs file for PM!\n");
 		}
@@ -1391,20 +1387,6 @@
 		goto dpm_failed;
 	rdev->pm.dpm_enabled = true;
 
-	ret = device_create_file(rdev->dev, &dev_attr_power_dpm_state);
-	if (ret)
-		DRM_ERROR("failed to create device file for dpm state\n");
-	ret = device_create_file(rdev->dev, &dev_attr_power_dpm_force_performance_level);
-	if (ret)
-		DRM_ERROR("failed to create device file for dpm state\n");
-	/* XXX: these are noops for dpm but are here for backwards compat */
-	ret = device_create_file(rdev->dev, &dev_attr_power_profile);
-	if (ret)
-		DRM_ERROR("failed to create device file for power profile\n");
-	ret = device_create_file(rdev->dev, &dev_attr_power_method);
-	if (ret)
-		DRM_ERROR("failed to create device file for power method\n");
-
 	if (radeon_debugfs_pm_init(rdev)) {
 		DRM_ERROR("Failed to register debugfs file for dpm!\n");
 	}
@@ -1545,9 +1527,44 @@
 	int ret = 0;
 
 	if (rdev->pm.pm_method == PM_METHOD_DPM) {
-		mutex_lock(&rdev->pm.mutex);
-		ret = radeon_dpm_late_enable(rdev);
-		mutex_unlock(&rdev->pm.mutex);
+		if (rdev->pm.dpm_enabled) {
+			ret = device_create_file(rdev->dev, &dev_attr_power_dpm_state);
+			if (ret)
+				DRM_ERROR("failed to create device file for dpm state\n");
+			ret = device_create_file(rdev->dev, &dev_attr_power_dpm_force_performance_level);
+			if (ret)
+				DRM_ERROR("failed to create device file for dpm state\n");
+			/* XXX: these are noops for dpm but are here for backwards compat */
+			ret = device_create_file(rdev->dev, &dev_attr_power_profile);
+			if (ret)
+				DRM_ERROR("failed to create device file for power profile\n");
+			ret = device_create_file(rdev->dev, &dev_attr_power_method);
+			if (ret)
+				DRM_ERROR("failed to create device file for power method\n");
+
+			mutex_lock(&rdev->pm.mutex);
+			ret = radeon_dpm_late_enable(rdev);
+			mutex_unlock(&rdev->pm.mutex);
+			if (ret) {
+				rdev->pm.dpm_enabled = false;
+				DRM_ERROR("radeon_pm_late_init failed, disabling dpm\n");
+			} else {
+				/* set the dpm state for PX since there won't be
+				 * a modeset to call this.
+				 */
+				radeon_pm_compute_clocks(rdev);
+			}
+		}
+	} else {
+		if (rdev->pm.num_power_states > 1) {
+			/* where's the best place to put these? */
+			ret = device_create_file(rdev->dev, &dev_attr_power_profile);
+			if (ret)
+				DRM_ERROR("failed to create device file for power profile\n");
+			ret = device_create_file(rdev->dev, &dev_attr_power_method);
+			if (ret)
+				DRM_ERROR("failed to create device file for power method\n");
+		}
 	}
 	return ret;
 }
diff --git a/drivers/gpu/drm/radeon/si_dpm.c b/drivers/gpu/drm/radeon/si_dpm.c
index e9115d3..e72bf46 100644
--- a/drivers/gpu/drm/radeon/si_dpm.c
+++ b/drivers/gpu/drm/radeon/si_dpm.c
@@ -2928,6 +2928,7 @@
 	{ PCI_VENDOR_ID_ATI, 0x6811, 0x174b, 0xe271, 0, 120000 },
 	{ PCI_VENDOR_ID_ATI, 0x6810, 0x174b, 0xe271, 85000, 90000 },
 	{ PCI_VENDOR_ID_ATI, 0x6811, 0x1762, 0x2015, 0, 120000 },
+	{ PCI_VENDOR_ID_ATI, 0x6811, 0x1043, 0x2015, 0, 120000 },
 	{ 0, 0, 0, 0 },
 };
 
diff --git a/drivers/gpu/drm/virtio/virtgpu_debugfs.c b/drivers/gpu/drm/virtio/virtgpu_debugfs.c
index db8b491..5122639 100644
--- a/drivers/gpu/drm/virtio/virtgpu_debugfs.c
+++ b/drivers/gpu/drm/virtio/virtgpu_debugfs.c
@@ -34,8 +34,8 @@
 	struct drm_info_node *node = (struct drm_info_node *) m->private;
 	struct virtio_gpu_device *vgdev = node->minor->dev->dev_private;
 
-	seq_printf(m, "fence %ld %lld\n",
-		   atomic64_read(&vgdev->fence_drv.last_seq),
+	seq_printf(m, "fence %llu %lld\n",
+		   (u64)atomic64_read(&vgdev->fence_drv.last_seq),
 		   vgdev->fence_drv.sync_seq);
 	return 0;
 }
diff --git a/drivers/gpu/drm/virtio/virtgpu_fence.c b/drivers/gpu/drm/virtio/virtgpu_fence.c
index 1da6326..67097c9 100644
--- a/drivers/gpu/drm/virtio/virtgpu_fence.c
+++ b/drivers/gpu/drm/virtio/virtgpu_fence.c
@@ -61,7 +61,7 @@
 {
 	struct virtio_gpu_fence *fence = to_virtio_fence(f);
 
-	snprintf(str, size, "%lu", atomic64_read(&fence->drv->last_seq));
+	snprintf(str, size, "%llu", (u64)atomic64_read(&fence->drv->last_seq));
 }
 
 static const struct fence_ops virtio_fence_ops = {
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
index 64b5040..03f63c7 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
@@ -657,7 +657,8 @@
 	struct vmw_resource *res = &user_srf->srf.res;
 
 	*p_base = NULL;
-	ttm_base_object_unref(&user_srf->backup_base);
+	if (user_srf->backup_base)
+		ttm_base_object_unref(&user_srf->backup_base);
 	vmw_resource_unreference(&res);
 }
 
diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
index 3dd2de3..472b882 100644
--- a/drivers/i2c/busses/i2c-designware-platdrv.c
+++ b/drivers/i2c/busses/i2c-designware-platdrv.c
@@ -24,6 +24,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/delay.h>
+#include <linux/dmi.h>
 #include <linux/i2c.h>
 #include <linux/clk.h>
 #include <linux/clk-provider.h>
@@ -51,6 +52,22 @@
 }
 
 #ifdef CONFIG_ACPI
+/*
+ * The HCNT/LCNT information coming from ACPI should be the most accurate
+ * for given platform. However, some systems get it wrong. On such systems
+ * we get better results by calculating those based on the input clock.
+ */
+static const struct dmi_system_id dw_i2c_no_acpi_params[] = {
+	{
+		.ident = "Dell Inspiron 7348",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7348"),
+		},
+	},
+	{ }
+};
+
 static void dw_i2c_acpi_params(struct platform_device *pdev, char method[],
 			       u16 *hcnt, u16 *lcnt, u32 *sda_hold)
 {
@@ -58,6 +75,9 @@
 	acpi_handle handle = ACPI_HANDLE(&pdev->dev);
 	union acpi_object *obj;
 
+	if (dmi_check_system(dw_i2c_no_acpi_params))
+		return;
+
 	if (ACPI_FAILURE(acpi_evaluate_object(handle, method, NULL, &buf)))
 		return;
 
@@ -253,12 +273,6 @@
 	adap->dev.parent = &pdev->dev;
 	adap->dev.of_node = pdev->dev.of_node;
 
-	r = i2c_add_numbered_adapter(adap);
-	if (r) {
-		dev_err(&pdev->dev, "failure adding adapter\n");
-		return r;
-	}
-
 	if (dev->pm_runtime_disabled) {
 		pm_runtime_forbid(&pdev->dev);
 	} else {
@@ -268,6 +282,13 @@
 		pm_runtime_enable(&pdev->dev);
 	}
 
+	r = i2c_add_numbered_adapter(adap);
+	if (r) {
+		dev_err(&pdev->dev, "failure adding adapter\n");
+		pm_runtime_disable(&pdev->dev);
+		return r;
+	}
+
 	return 0;
 }
 
diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c
index d8361da..d8b5a8f 100644
--- a/drivers/i2c/busses/i2c-rcar.c
+++ b/drivers/i2c/busses/i2c-rcar.c
@@ -690,15 +690,16 @@
 		return ret;
 	}
 
+	pm_runtime_enable(dev);
+	platform_set_drvdata(pdev, priv);
+
 	ret = i2c_add_numbered_adapter(adap);
 	if (ret < 0) {
 		dev_err(dev, "reg adap failed: %d\n", ret);
+		pm_runtime_disable(dev);
 		return ret;
 	}
 
-	pm_runtime_enable(dev);
-	platform_set_drvdata(pdev, priv);
-
 	dev_info(dev, "probed\n");
 
 	return 0;
diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c
index 50bfd8c..5df8196 100644
--- a/drivers/i2c/busses/i2c-s3c2410.c
+++ b/drivers/i2c/busses/i2c-s3c2410.c
@@ -1243,17 +1243,19 @@
 	i2c->adap.nr = i2c->pdata->bus_num;
 	i2c->adap.dev.of_node = pdev->dev.of_node;
 
+	platform_set_drvdata(pdev, i2c);
+
+	pm_runtime_enable(&pdev->dev);
+
 	ret = i2c_add_numbered_adapter(&i2c->adap);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "failed to add bus to i2c core\n");
+		pm_runtime_disable(&pdev->dev);
 		s3c24xx_i2c_deregister_cpufreq(i2c);
 		clk_unprepare(i2c->clk);
 		return ret;
 	}
 
-	platform_set_drvdata(pdev, i2c);
-
-	pm_runtime_enable(&pdev->dev);
 	pm_runtime_enable(&i2c->adap.dev);
 
 	dev_info(&pdev->dev, "%s: S3C I2C adapter\n", dev_name(&i2c->adap.dev));
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 5f89f1e3..a59c311 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -694,12 +694,12 @@
 		goto err_clear_wakeup_irq;
 
 	status = dev_pm_domain_attach(&client->dev, true);
-	if (status != -EPROBE_DEFER) {
-		status = driver->probe(client, i2c_match_id(driver->id_table,
-					client));
-		if (status)
-			goto err_detach_pm_domain;
-	}
+	if (status == -EPROBE_DEFER)
+		goto err_clear_wakeup_irq;
+
+	status = driver->probe(client, i2c_match_id(driver->id_table, client));
+	if (status)
+		goto err_detach_pm_domain;
 
 	return 0;
 
diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
index ff30f88..fb93111 100644
--- a/drivers/iio/accel/st_accel_core.c
+++ b/drivers/iio/accel/st_accel_core.c
@@ -149,8 +149,6 @@
 #define ST_ACCEL_4_BDU_MASK			0x40
 #define ST_ACCEL_4_DRDY_IRQ_ADDR		0x21
 #define ST_ACCEL_4_DRDY_IRQ_INT1_MASK		0x04
-#define ST_ACCEL_4_IG1_EN_ADDR			0x21
-#define ST_ACCEL_4_IG1_EN_MASK			0x08
 #define ST_ACCEL_4_MULTIREAD_BIT		true
 
 /* CUSTOM VALUES FOR SENSOR 5 */
@@ -489,10 +487,6 @@
 		.drdy_irq = {
 			.addr = ST_ACCEL_4_DRDY_IRQ_ADDR,
 			.mask_int1 = ST_ACCEL_4_DRDY_IRQ_INT1_MASK,
-			.ig1 = {
-				.en_addr = ST_ACCEL_4_IG1_EN_ADDR,
-				.en_mask = ST_ACCEL_4_IG1_EN_MASK,
-			},
 		},
 		.multi_read_bit = ST_ACCEL_4_MULTIREAD_BIT,
 		.bootime = 2, /* guess */
diff --git a/drivers/iio/adc/twl4030-madc.c b/drivers/iio/adc/twl4030-madc.c
index ebe415f..0c74869 100644
--- a/drivers/iio/adc/twl4030-madc.c
+++ b/drivers/iio/adc/twl4030-madc.c
@@ -45,13 +45,18 @@
 #include <linux/types.h>
 #include <linux/gfp.h>
 #include <linux/err.h>
+#include <linux/regulator/consumer.h>
 
 #include <linux/iio/iio.h>
 
+#define TWL4030_USB_SEL_MADC_MCPC	(1<<3)
+#define TWL4030_USB_CARKIT_ANA_CTRL	0xBB
+
 /**
  * struct twl4030_madc_data - a container for madc info
  * @dev:		Pointer to device structure for madc
  * @lock:		Mutex protecting this data structure
+ * @regulator:		Pointer to bias regulator for madc
  * @requests:		Array of request struct corresponding to SW1, SW2 and RT
  * @use_second_irq:	IRQ selection (main or co-processor)
  * @imr:		Interrupt mask register of MADC
@@ -60,6 +65,7 @@
 struct twl4030_madc_data {
 	struct device *dev;
 	struct mutex lock;	/* mutex protecting this data structure */
+	struct regulator *usb3v1;
 	struct twl4030_madc_request requests[TWL4030_MADC_NUM_METHODS];
 	bool use_second_irq;
 	u8 imr;
@@ -841,6 +847,32 @@
 	}
 	twl4030_madc = madc;
 
+	/* Configure MADC[3:6] */
+	ret = twl_i2c_read_u8(TWL_MODULE_USB, &regval,
+			TWL4030_USB_CARKIT_ANA_CTRL);
+	if (ret) {
+		dev_err(&pdev->dev, "unable to read reg CARKIT_ANA_CTRL  0x%X\n",
+				TWL4030_USB_CARKIT_ANA_CTRL);
+		goto err_i2c;
+	}
+	regval |= TWL4030_USB_SEL_MADC_MCPC;
+	ret = twl_i2c_write_u8(TWL_MODULE_USB, regval,
+				 TWL4030_USB_CARKIT_ANA_CTRL);
+	if (ret) {
+		dev_err(&pdev->dev, "unable to write reg CARKIT_ANA_CTRL 0x%X\n",
+				TWL4030_USB_CARKIT_ANA_CTRL);
+		goto err_i2c;
+	}
+
+	/* Enable 3v1 bias regulator for MADC[3:6] */
+	madc->usb3v1 = devm_regulator_get(madc->dev, "vusb3v1");
+	if (IS_ERR(madc->usb3v1))
+		return -ENODEV;
+
+	ret = regulator_enable(madc->usb3v1);
+	if (ret)
+		dev_err(madc->dev, "could not enable 3v1 bias regulator\n");
+
 	ret = iio_device_register(iio_dev);
 	if (ret) {
 		dev_err(&pdev->dev, "could not register iio device\n");
@@ -866,6 +898,8 @@
 	twl4030_madc_set_current_generator(madc, 0, 0);
 	twl4030_madc_set_power(madc, 0);
 
+	regulator_disable(madc->usb3v1);
+
 	return 0;
 }
 
diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c
index 8f66c67..87471ef 100644
--- a/drivers/infiniband/core/cache.c
+++ b/drivers/infiniband/core/cache.c
@@ -508,12 +508,12 @@
 	memset(&gid_attr, 0, sizeof(gid_attr));
 	gid_attr.ndev = ndev;
 
+	mutex_lock(&table->lock);
 	ix = find_gid(table, NULL, NULL, true, GID_ATTR_FIND_MASK_DEFAULT);
 
 	/* Coudn't find default GID location */
 	WARN_ON(ix < 0);
 
-	mutex_lock(&table->lock);
 	if (!__ib_cache_gid_get(ib_dev, port, ix,
 				&current_gid, &current_gid_attr) &&
 	    mode == IB_CACHE_GID_DEFAULT_MODE_SET &&
diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index ea4db9c..4f918b9 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -835,6 +835,11 @@
 	case IB_CM_SIDR_REQ_RCVD:
 		spin_unlock_irq(&cm_id_priv->lock);
 		cm_reject_sidr_req(cm_id_priv, IB_SIDR_REJECT);
+		spin_lock_irq(&cm.lock);
+		if (!RB_EMPTY_NODE(&cm_id_priv->sidr_id_node))
+			rb_erase(&cm_id_priv->sidr_id_node,
+				 &cm.remote_sidr_table);
+		spin_unlock_irq(&cm.lock);
 		break;
 	case IB_CM_REQ_SENT:
 	case IB_CM_MRA_REQ_RCVD:
@@ -3172,7 +3177,10 @@
 	spin_unlock_irqrestore(&cm_id_priv->lock, flags);
 
 	spin_lock_irqsave(&cm.lock, flags);
-	rb_erase(&cm_id_priv->sidr_id_node, &cm.remote_sidr_table);
+	if (!RB_EMPTY_NODE(&cm_id_priv->sidr_id_node)) {
+		rb_erase(&cm_id_priv->sidr_id_node, &cm.remote_sidr_table);
+		RB_CLEAR_NODE(&cm_id_priv->sidr_id_node);
+	}
 	spin_unlock_irqrestore(&cm.lock, flags);
 	return 0;
 
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index b1ab13f..36b12d5 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -1067,14 +1067,14 @@
 		       sizeof(req->local_gid));
 		req->has_gid	= true;
 		req->service_id	= req_param->primary_path->service_id;
-		req->pkey	= req_param->bth_pkey;
+		req->pkey	= be16_to_cpu(req_param->primary_path->pkey);
 		break;
 	case IB_CM_SIDR_REQ_RECEIVED:
 		req->device	= sidr_param->listen_id->device;
 		req->port	= sidr_param->port;
 		req->has_gid	= false;
 		req->service_id	= sidr_param->service_id;
-		req->pkey	= sidr_param->bth_pkey;
+		req->pkey	= sidr_param->pkey;
 		break;
 	default:
 		return -EINVAL;
@@ -1232,14 +1232,32 @@
 	return true;
 }
 
+static bool cma_protocol_roce_dev_port(struct ib_device *device, int port_num)
+{
+	enum rdma_link_layer ll = rdma_port_get_link_layer(device, port_num);
+	enum rdma_transport_type transport =
+		rdma_node_get_transport(device->node_type);
+
+	return ll == IB_LINK_LAYER_ETHERNET && transport == RDMA_TRANSPORT_IB;
+}
+
+static bool cma_protocol_roce(const struct rdma_cm_id *id)
+{
+	struct ib_device *device = id->device;
+	const int port_num = id->port_num ?: rdma_start_port(device);
+
+	return cma_protocol_roce_dev_port(device, port_num);
+}
+
 static bool cma_match_net_dev(const struct rdma_id_private *id_priv,
 			      const struct net_device *net_dev)
 {
 	const struct rdma_addr *addr = &id_priv->id.route.addr;
 
 	if (!net_dev)
-		/* This request is an AF_IB request */
-		return addr->src_addr.ss_family == AF_IB;
+		/* This request is an AF_IB request or a RoCE request */
+		return addr->src_addr.ss_family == AF_IB ||
+		       cma_protocol_roce(&id_priv->id);
 
 	return !addr->dev_addr.bound_dev_if ||
 	       (net_eq(dev_net(net_dev), &init_net) &&
@@ -1294,6 +1312,10 @@
 		if (PTR_ERR(*net_dev) == -EAFNOSUPPORT) {
 			/* Assuming the protocol is AF_IB */
 			*net_dev = NULL;
+		} else if (cma_protocol_roce_dev_port(req.device, req.port)) {
+			/* TODO find the net dev matching the request parameters
+			 * through the RoCE GID table */
+			*net_dev = NULL;
 		} else {
 			return ERR_CAST(*net_dev);
 		}
@@ -1302,7 +1324,7 @@
 	bind_list = cma_ps_find(rdma_ps_from_service_id(req.service_id),
 				cma_port_from_service_id(req.service_id));
 	id_priv = cma_find_listener(bind_list, cm_id, ib_event, &req, *net_dev);
-	if (IS_ERR(id_priv)) {
+	if (IS_ERR(id_priv) && *net_dev) {
 		dev_put(*net_dev);
 		*net_dev = NULL;
 	}
@@ -1593,11 +1615,16 @@
 		if (ret)
 			goto err;
 	} else {
-		/* An AF_IB connection */
-		WARN_ON_ONCE(ss_family != AF_IB);
-
-		cma_translate_ib((struct sockaddr_ib *)cma_src_addr(id_priv),
-				 &rt->addr.dev_addr);
+		if (!cma_protocol_roce(listen_id) &&
+		    cma_any_addr(cma_src_addr(id_priv))) {
+			rt->addr.dev_addr.dev_type = ARPHRD_INFINIBAND;
+			rdma_addr_set_sgid(&rt->addr.dev_addr, &rt->path_rec[0].sgid);
+			ib_addr_set_pkey(&rt->addr.dev_addr, be16_to_cpu(rt->path_rec[0].pkey));
+		} else if (!cma_any_addr(cma_src_addr(id_priv))) {
+			ret = cma_translate_addr(cma_src_addr(id_priv), &rt->addr.dev_addr);
+			if (ret)
+				goto err;
+		}
 	}
 	rdma_addr_set_dgid(&rt->addr.dev_addr, &rt->path_rec[0].dgid);
 
@@ -1635,13 +1662,12 @@
 		if (ret)
 			goto err;
 	} else {
-		/* An AF_IB connection */
-		WARN_ON_ONCE(ss_family != AF_IB);
-
-		if (!cma_any_addr(cma_src_addr(id_priv)))
-			cma_translate_ib((struct sockaddr_ib *)
-						cma_src_addr(id_priv),
-					 &id->route.addr.dev_addr);
+		if (!cma_any_addr(cma_src_addr(id_priv))) {
+			ret = cma_translate_addr(cma_src_addr(id_priv),
+						 &id->route.addr.dev_addr);
+			if (ret)
+				goto err;
+		}
 	}
 
 	id_priv->state = RDMA_CM_CONNECT;
diff --git a/drivers/infiniband/core/roce_gid_mgmt.c b/drivers/infiniband/core/roce_gid_mgmt.c
index 6b24cba..178f984 100644
--- a/drivers/infiniband/core/roce_gid_mgmt.c
+++ b/drivers/infiniband/core/roce_gid_mgmt.c
@@ -250,25 +250,44 @@
 				 u8 port, struct net_device *ndev)
 {
 	struct in_device *in_dev;
+	struct sin_list {
+		struct list_head	list;
+		struct sockaddr_in	ip;
+	};
+	struct sin_list *sin_iter;
+	struct sin_list *sin_temp;
 
+	LIST_HEAD(sin_list);
 	if (ndev->reg_state >= NETREG_UNREGISTERING)
 		return;
 
-	in_dev = in_dev_get(ndev);
-	if (!in_dev)
+	rcu_read_lock();
+	in_dev = __in_dev_get_rcu(ndev);
+	if (!in_dev) {
+		rcu_read_unlock();
 		return;
+	}
 
 	for_ifa(in_dev) {
-		struct sockaddr_in ip;
+		struct sin_list *entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
 
-		ip.sin_family = AF_INET;
-		ip.sin_addr.s_addr = ifa->ifa_address;
-		update_gid_ip(GID_ADD, ib_dev, port, ndev,
-			      (struct sockaddr *)&ip);
+		if (!entry) {
+			pr_warn("roce_gid_mgmt: couldn't allocate entry for IPv4 update\n");
+			continue;
+		}
+		entry->ip.sin_family = AF_INET;
+		entry->ip.sin_addr.s_addr = ifa->ifa_address;
+		list_add_tail(&entry->list, &sin_list);
 	}
 	endfor_ifa(in_dev);
+	rcu_read_unlock();
 
-	in_dev_put(in_dev);
+	list_for_each_entry_safe(sin_iter, sin_temp, &sin_list, list) {
+		update_gid_ip(GID_ADD, ib_dev, port, ndev,
+			      (struct sockaddr *)&sin_iter->ip);
+		list_del(&sin_iter->list);
+		kfree(sin_iter);
+	}
 }
 
 static void enum_netdev_ipv6_ips(struct ib_device *ib_dev,
diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c
index a53fc9b..30467d1 100644
--- a/drivers/infiniband/core/ucma.c
+++ b/drivers/infiniband/core/ucma.c
@@ -1624,11 +1624,16 @@
 	if (!file)
 		return -ENOMEM;
 
+	file->close_wq = create_singlethread_workqueue("ucma_close_id");
+	if (!file->close_wq) {
+		kfree(file);
+		return -ENOMEM;
+	}
+
 	INIT_LIST_HEAD(&file->event_list);
 	INIT_LIST_HEAD(&file->ctx_list);
 	init_waitqueue_head(&file->poll_wait);
 	mutex_init(&file->mut);
-	file->close_wq = create_singlethread_workqueue("ucma_close_id");
 
 	filp->private_data = file;
 	file->filp = filp;
diff --git a/drivers/infiniband/hw/usnic/usnic.h b/drivers/infiniband/hw/usnic/usnic.h
index 5be13d8..f903502 100644
--- a/drivers/infiniband/hw/usnic/usnic.h
+++ b/drivers/infiniband/hw/usnic/usnic.h
@@ -1,9 +1,24 @@
 /*
  * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
  *
- * This program is free software; you may redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
diff --git a/drivers/infiniband/hw/usnic/usnic_abi.h b/drivers/infiniband/hw/usnic/usnic_abi.h
index 04a66229..7fe9502 100644
--- a/drivers/infiniband/hw/usnic/usnic_abi.h
+++ b/drivers/infiniband/hw/usnic/usnic_abi.h
@@ -1,9 +1,24 @@
 /*
  * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
  *
- * This program is free software; you may redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
diff --git a/drivers/infiniband/hw/usnic/usnic_common_pkt_hdr.h b/drivers/infiniband/hw/usnic/usnic_common_pkt_hdr.h
index 3935672..596e0ed 100644
--- a/drivers/infiniband/hw/usnic/usnic_common_pkt_hdr.h
+++ b/drivers/infiniband/hw/usnic/usnic_common_pkt_hdr.h
@@ -1,9 +1,24 @@
 /*
  * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
  *
- * This program is free software; you may redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
diff --git a/drivers/infiniband/hw/usnic/usnic_common_util.h b/drivers/infiniband/hw/usnic/usnic_common_util.h
index 9d737ed..b54986d 100644
--- a/drivers/infiniband/hw/usnic/usnic_common_util.h
+++ b/drivers/infiniband/hw/usnic/usnic_common_util.h
@@ -1,9 +1,24 @@
 /*
  * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
  *
- * This program is free software; you may redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
diff --git a/drivers/infiniband/hw/usnic/usnic_debugfs.c b/drivers/infiniband/hw/usnic/usnic_debugfs.c
index 5d13860..5e55b8b 100644
--- a/drivers/infiniband/hw/usnic/usnic_debugfs.c
+++ b/drivers/infiniband/hw/usnic/usnic_debugfs.c
@@ -1,9 +1,24 @@
 /*
  * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
  *
- * This program is free software; you may redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
diff --git a/drivers/infiniband/hw/usnic/usnic_debugfs.h b/drivers/infiniband/hw/usnic/usnic_debugfs.h
index 4087d24..98453e9 100644
--- a/drivers/infiniband/hw/usnic/usnic_debugfs.h
+++ b/drivers/infiniband/hw/usnic/usnic_debugfs.h
@@ -1,9 +1,24 @@
 /*
  * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
  *
- * This program is free software; you may redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
diff --git a/drivers/infiniband/hw/usnic/usnic_fwd.c b/drivers/infiniband/hw/usnic/usnic_fwd.c
index e3c9bd9..3c37dd5 100644
--- a/drivers/infiniband/hw/usnic/usnic_fwd.c
+++ b/drivers/infiniband/hw/usnic/usnic_fwd.c
@@ -1,9 +1,24 @@
 /*
  * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
  *
- * This program is free software; you may redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
diff --git a/drivers/infiniband/hw/usnic/usnic_fwd.h b/drivers/infiniband/hw/usnic/usnic_fwd.h
index 93713a2..3a8add9 100644
--- a/drivers/infiniband/hw/usnic/usnic_fwd.h
+++ b/drivers/infiniband/hw/usnic/usnic_fwd.h
@@ -1,9 +1,24 @@
 /*
  * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
  *
- * This program is free software; you may redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
diff --git a/drivers/infiniband/hw/usnic/usnic_ib.h b/drivers/infiniband/hw/usnic/usnic_ib.h
index e5a9297..525bf27 100644
--- a/drivers/infiniband/hw/usnic/usnic_ib.h
+++ b/drivers/infiniband/hw/usnic/usnic_ib.h
@@ -1,9 +1,24 @@
 /*
  * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
  *
- * This program is free software; you may redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
diff --git a/drivers/infiniband/hw/usnic/usnic_ib_main.c b/drivers/infiniband/hw/usnic/usnic_ib_main.c
index 34c49b8..0c15bd8 100644
--- a/drivers/infiniband/hw/usnic/usnic_ib_main.c
+++ b/drivers/infiniband/hw/usnic/usnic_ib_main.c
@@ -1,9 +1,24 @@
 /*
  * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
  *
- * This program is free software; you may redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
diff --git a/drivers/infiniband/hw/usnic/usnic_ib_qp_grp.c b/drivers/infiniband/hw/usnic/usnic_ib_qp_grp.c
index db3588d..85dc3f9 100644
--- a/drivers/infiniband/hw/usnic/usnic_ib_qp_grp.c
+++ b/drivers/infiniband/hw/usnic/usnic_ib_qp_grp.c
@@ -1,9 +1,24 @@
 /*
  * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
  *
- * This program is free software; you may redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
diff --git a/drivers/infiniband/hw/usnic/usnic_ib_qp_grp.h b/drivers/infiniband/hw/usnic/usnic_ib_qp_grp.h
index b0aafe8..b1458be 100644
--- a/drivers/infiniband/hw/usnic/usnic_ib_qp_grp.h
+++ b/drivers/infiniband/hw/usnic/usnic_ib_qp_grp.h
@@ -1,9 +1,24 @@
 /*
  * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
  *
- * This program is free software; you may redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
diff --git a/drivers/infiniband/hw/usnic/usnic_ib_sysfs.c b/drivers/infiniband/hw/usnic/usnic_ib_sysfs.c
index 27dc67c..3412ea0 100644
--- a/drivers/infiniband/hw/usnic/usnic_ib_sysfs.c
+++ b/drivers/infiniband/hw/usnic/usnic_ib_sysfs.c
@@ -1,9 +1,24 @@
 /*
  * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
  *
- * This program is free software; you may redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
diff --git a/drivers/infiniband/hw/usnic/usnic_ib_sysfs.h b/drivers/infiniband/hw/usnic/usnic_ib_sysfs.h
index 0d09b49..3d98e16 100644
--- a/drivers/infiniband/hw/usnic/usnic_ib_sysfs.h
+++ b/drivers/infiniband/hw/usnic/usnic_ib_sysfs.h
@@ -1,9 +1,24 @@
 /*
  * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
  *
- * This program is free software; you may redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
diff --git a/drivers/infiniband/hw/usnic/usnic_ib_verbs.c b/drivers/infiniband/hw/usnic/usnic_ib_verbs.c
index 7df4382..f8e3211 100644
--- a/drivers/infiniband/hw/usnic/usnic_ib_verbs.c
+++ b/drivers/infiniband/hw/usnic/usnic_ib_verbs.c
@@ -1,9 +1,24 @@
 /*
  * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
  *
- * This program is free software; you may redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
diff --git a/drivers/infiniband/hw/usnic/usnic_ib_verbs.h b/drivers/infiniband/hw/usnic/usnic_ib_verbs.h
index 0bd04ef..414eaa5 100644
--- a/drivers/infiniband/hw/usnic/usnic_ib_verbs.h
+++ b/drivers/infiniband/hw/usnic/usnic_ib_verbs.h
@@ -1,9 +1,24 @@
 /*
  * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
  *
- * This program is free software; you may redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
diff --git a/drivers/infiniband/hw/usnic/usnic_log.h b/drivers/infiniband/hw/usnic/usnic_log.h
index 75777a6..183fcb6 100644
--- a/drivers/infiniband/hw/usnic/usnic_log.h
+++ b/drivers/infiniband/hw/usnic/usnic_log.h
@@ -1,9 +1,24 @@
 /*
  * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
  *
- * This program is free software; you may redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
diff --git a/drivers/infiniband/hw/usnic/usnic_transport.c b/drivers/infiniband/hw/usnic/usnic_transport.c
index ddef6f77..de31838 100644
--- a/drivers/infiniband/hw/usnic/usnic_transport.c
+++ b/drivers/infiniband/hw/usnic/usnic_transport.c
@@ -1,9 +1,24 @@
 /*
  * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
  *
- * This program is free software; you may redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
diff --git a/drivers/infiniband/hw/usnic/usnic_transport.h b/drivers/infiniband/hw/usnic/usnic_transport.h
index 7e5dc6d..9a7a2d9 100644
--- a/drivers/infiniband/hw/usnic/usnic_transport.h
+++ b/drivers/infiniband/hw/usnic/usnic_transport.h
@@ -1,9 +1,24 @@
 /*
  * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
  *
- * This program is free software; you may redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
diff --git a/drivers/infiniband/hw/usnic/usnic_uiom.c b/drivers/infiniband/hw/usnic/usnic_uiom.c
index cb2337f..645a5f6 100644
--- a/drivers/infiniband/hw/usnic/usnic_uiom.c
+++ b/drivers/infiniband/hw/usnic/usnic_uiom.c
@@ -7,7 +7,7 @@
  * licenses.  You may choose to be licensed under the terms of the GNU
  * General Public License (GPL) Version 2, available from the file
  * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
+ * BSD license below:
  *
  *     Redistribution and use in source and binary forms, with or
  *     without modification, are permitted provided that the following
diff --git a/drivers/infiniband/hw/usnic/usnic_uiom.h b/drivers/infiniband/hw/usnic/usnic_uiom.h
index 7044099..45ca7c1 100644
--- a/drivers/infiniband/hw/usnic/usnic_uiom.h
+++ b/drivers/infiniband/hw/usnic/usnic_uiom.h
@@ -1,9 +1,24 @@
 /*
  * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
  *
- * This program is free software; you may redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
diff --git a/drivers/infiniband/hw/usnic/usnic_uiom_interval_tree.c b/drivers/infiniband/hw/usnic/usnic_uiom_interval_tree.c
index 3a4288e..42b4b4c 100644
--- a/drivers/infiniband/hw/usnic/usnic_uiom_interval_tree.c
+++ b/drivers/infiniband/hw/usnic/usnic_uiom_interval_tree.c
@@ -1,9 +1,24 @@
 /*
  * Copyright (c) 2014, Cisco Systems, Inc. All rights reserved.
  *
- * This program is free software; you may redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
diff --git a/drivers/infiniband/hw/usnic/usnic_uiom_interval_tree.h b/drivers/infiniband/hw/usnic/usnic_uiom_interval_tree.h
index d4f752e..c0b0b87 100644
--- a/drivers/infiniband/hw/usnic/usnic_uiom_interval_tree.h
+++ b/drivers/infiniband/hw/usnic/usnic_uiom_interval_tree.h
@@ -1,9 +1,24 @@
 /*
  * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
  *
- * This program is free software; you may redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
diff --git a/drivers/infiniband/hw/usnic/usnic_vnic.c b/drivers/infiniband/hw/usnic/usnic_vnic.c
index 656b88c..66de93f 100644
--- a/drivers/infiniband/hw/usnic/usnic_vnic.c
+++ b/drivers/infiniband/hw/usnic/usnic_vnic.c
@@ -1,9 +1,24 @@
 /*
  * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
  *
- * This program is free software; you may redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
diff --git a/drivers/infiniband/hw/usnic/usnic_vnic.h b/drivers/infiniband/hw/usnic/usnic_vnic.h
index 14d931a..a08423e 100644
--- a/drivers/infiniband/hw/usnic/usnic_vnic.h
+++ b/drivers/infiniband/hw/usnic/usnic_vnic.h
@@ -1,9 +1,24 @@
 /*
  * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
  *
- * This program is free software; you may redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h
index 4cd5428..edc5b85 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib.h
+++ b/drivers/infiniband/ulp/ipoib/ipoib.h
@@ -495,6 +495,7 @@
 void ipoib_mcast_join_task(struct work_struct *work);
 void ipoib_mcast_carrier_on_task(struct work_struct *work);
 void ipoib_mcast_send(struct net_device *dev, u8 *daddr, struct sk_buff *skb);
+void ipoib_mcast_free(struct ipoib_mcast *mc);
 
 void ipoib_mcast_restart_task(struct work_struct *work);
 int ipoib_mcast_start_thread(struct net_device *dev);
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index f74316e..babba05 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -1207,8 +1207,10 @@
 
 out_unlock:
 	spin_unlock_irqrestore(&priv->lock, flags);
-	list_for_each_entry_safe(mcast, tmcast, &remove_list, list)
+	list_for_each_entry_safe(mcast, tmcast, &remove_list, list) {
 		ipoib_mcast_leave(dev, mcast);
+		ipoib_mcast_free(mcast);
+	}
 }
 
 static void ipoib_reap_neigh(struct work_struct *work)
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
index 136cbef..d750a86 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
@@ -106,7 +106,7 @@
 		queue_delayed_work(priv->wq, &priv->mcast_task, 0);
 }
 
-static void ipoib_mcast_free(struct ipoib_mcast *mcast)
+void ipoib_mcast_free(struct ipoib_mcast *mcast)
 {
 	struct net_device *dev = mcast->dev;
 	int tx_dropped = 0;
diff --git a/drivers/input/mouse/cyapa_gen6.c b/drivers/input/mouse/cyapa_gen6.c
index 5f19107..e4eb048 100644
--- a/drivers/input/mouse/cyapa_gen6.c
+++ b/drivers/input/mouse/cyapa_gen6.c
@@ -241,14 +241,10 @@
 	memcpy(&cyapa->product_id[13], &resp_data[62], 2);
 	cyapa->product_id[15] = '\0';
 
+	/* Get the number of Rx electrodes. */
 	rotat_align = resp_data[68];
-	if (rotat_align) {
-		cyapa->electrodes_rx = cyapa->electrodes_y;
-		cyapa->electrodes_rx = cyapa->electrodes_y;
-	} else {
-		cyapa->electrodes_rx = cyapa->electrodes_x;
-		cyapa->electrodes_rx = cyapa->electrodes_y;
-	}
+	cyapa->electrodes_rx =
+		rotat_align ? cyapa->electrodes_y : cyapa->electrodes_x;
 	cyapa->aligned_electrodes_rx = (cyapa->electrodes_rx + 3) & ~3u;
 
 	if (!cyapa->electrodes_x || !cyapa->electrodes_y ||
diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index 0f5f968..04edc8f 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -668,18 +668,22 @@
 
 static int ads7846_get_value(struct ads7846 *ts, struct spi_message *m)
 {
+	int value;
 	struct spi_transfer *t =
 		list_entry(m->transfers.prev, struct spi_transfer, transfer_list);
 
 	if (ts->model == 7845) {
-		return be16_to_cpup((__be16 *)&(((char*)t->rx_buf)[1])) >> 3;
+		value = be16_to_cpup((__be16 *)&(((char *)t->rx_buf)[1]));
 	} else {
 		/*
 		 * adjust:  on-wire is a must-ignore bit, a BE12 value, then
 		 * padding; built from two 8 bit values written msb-first.
 		 */
-		return be16_to_cpup((__be16 *)t->rx_buf) >> 3;
+		value = be16_to_cpup((__be16 *)t->rx_buf);
 	}
+
+	/* enforce ADC output is 12 bits width */
+	return (value >> 3) & 0xfff;
 }
 
 static void ads7846_update_value(struct spi_message *m, int val)
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index d9da766..cbe6a89 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -23,8 +23,7 @@
 config IOMMU_IO_PGTABLE_LPAE
 	bool "ARMv7/v8 Long Descriptor Format"
 	select IOMMU_IO_PGTABLE
-	# SWIOTLB guarantees a dma_to_phys() implementation
-	depends on ARM || ARM64 || (COMPILE_TEST && SWIOTLB)
+	depends on HAS_DMA && (ARM || ARM64 || COMPILE_TEST)
 	help
 	  Enable support for the ARM long descriptor pagetable format.
 	  This allocator supports 4K/2M/1G, 16K/32M and 64K/512M page
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index f82060e7..08d2775 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -2006,6 +2006,15 @@
 {
 	struct amd_iommu *iommu;
 
+	/*
+	 * First check if the device is still attached. It might already
+	 * be detached from its domain because the generic
+	 * iommu_detach_group code detached it and we try again here in
+	 * our alias handling.
+	 */
+	if (!dev_data->domain)
+		return;
+
 	iommu = amd_iommu_rlookup_table[dev_data->devid];
 
 	/* decrease reference counters */
diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index 5ef347a..1b066e7 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -1256,6 +1256,9 @@
 	if (!iommu->dev)
 		return -ENODEV;
 
+	/* Prevent binding other PCI device drivers to IOMMU devices */
+	iommu->dev->match_driver = false;
+
 	pci_read_config_dword(iommu->dev, cap_ptr + MMIO_CAP_HDR_OFFSET,
 			      &iommu->cap);
 	pci_read_config_dword(iommu->dev, cap_ptr + MMIO_RANGE_OFFSET,
diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c
index dafaf59..286e890 100644
--- a/drivers/iommu/arm-smmu-v3.c
+++ b/drivers/iommu/arm-smmu-v3.c
@@ -56,6 +56,7 @@
 #define IDR0_TTF_SHIFT			2
 #define IDR0_TTF_MASK			0x3
 #define IDR0_TTF_AARCH64		(2 << IDR0_TTF_SHIFT)
+#define IDR0_TTF_AARCH32_64		(3 << IDR0_TTF_SHIFT)
 #define IDR0_S1P			(1 << 1)
 #define IDR0_S2P			(1 << 0)
 
@@ -342,7 +343,8 @@
 #define CMDQ_TLBI_0_VMID_SHIFT		32
 #define CMDQ_TLBI_0_ASID_SHIFT		48
 #define CMDQ_TLBI_1_LEAF		(1UL << 0)
-#define CMDQ_TLBI_1_ADDR_MASK		~0xfffUL
+#define CMDQ_TLBI_1_VA_MASK		~0xfffUL
+#define CMDQ_TLBI_1_IPA_MASK		0xfffffffff000UL
 
 #define CMDQ_PRI_0_SSID_SHIFT		12
 #define CMDQ_PRI_0_SSID_MASK		0xfffffUL
@@ -770,11 +772,13 @@
 		break;
 	case CMDQ_OP_TLBI_NH_VA:
 		cmd[0] |= (u64)ent->tlbi.asid << CMDQ_TLBI_0_ASID_SHIFT;
-		/* Fallthrough */
+		cmd[1] |= ent->tlbi.leaf ? CMDQ_TLBI_1_LEAF : 0;
+		cmd[1] |= ent->tlbi.addr & CMDQ_TLBI_1_VA_MASK;
+		break;
 	case CMDQ_OP_TLBI_S2_IPA:
 		cmd[0] |= (u64)ent->tlbi.vmid << CMDQ_TLBI_0_VMID_SHIFT;
 		cmd[1] |= ent->tlbi.leaf ? CMDQ_TLBI_1_LEAF : 0;
-		cmd[1] |= ent->tlbi.addr & CMDQ_TLBI_1_ADDR_MASK;
+		cmd[1] |= ent->tlbi.addr & CMDQ_TLBI_1_IPA_MASK;
 		break;
 	case CMDQ_OP_TLBI_NH_ASID:
 		cmd[0] |= (u64)ent->tlbi.asid << CMDQ_TLBI_0_ASID_SHIFT;
@@ -2460,7 +2464,13 @@
 	}
 
 	/* We only support the AArch64 table format at present */
-	if ((reg & IDR0_TTF_MASK << IDR0_TTF_SHIFT) < IDR0_TTF_AARCH64) {
+	switch (reg & IDR0_TTF_MASK << IDR0_TTF_SHIFT) {
+	case IDR0_TTF_AARCH32_64:
+		smmu->ias = 40;
+		/* Fallthrough */
+	case IDR0_TTF_AARCH64:
+		break;
+	default:
 		dev_err(smmu->dev, "AArch64 table format not supported!\n");
 		return -ENXIO;
 	}
@@ -2541,8 +2551,7 @@
 		dev_warn(smmu->dev,
 			 "failed to set DMA mask for table walker\n");
 
-	if (!smmu->ias)
-		smmu->ias = smmu->oas;
+	smmu->ias = max(smmu->ias, smmu->oas);
 
 	dev_info(smmu->dev, "ias %lu-bit, oas %lu-bit (features 0x%08x)\n",
 		 smmu->ias, smmu->oas, smmu->features);
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 041bc18..d65cf42 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -2115,15 +2115,19 @@
 				return -ENOMEM;
 			/* It is large page*/
 			if (largepage_lvl > 1) {
+				unsigned long nr_superpages, end_pfn;
+
 				pteval |= DMA_PTE_LARGE_PAGE;
 				lvl_pages = lvl_to_nr_pages(largepage_lvl);
+
+				nr_superpages = sg_res / lvl_pages;
+				end_pfn = iov_pfn + nr_superpages * lvl_pages - 1;
+
 				/*
 				 * Ensure that old small page tables are
-				 * removed to make room for superpage,
-				 * if they exist.
+				 * removed to make room for superpage(s).
 				 */
-				dma_pte_free_pagetable(domain, iov_pfn,
-						       iov_pfn + lvl_pages - 1);
+				dma_pte_free_pagetable(domain, iov_pfn, end_pfn);
 			} else {
 				pteval &= ~(uint64_t)DMA_PTE_LARGE_PAGE;
 			}
@@ -2301,6 +2305,7 @@
 
 	if (ret) {
 		spin_unlock_irqrestore(&device_domain_lock, flags);
+		free_devinfo_mem(info);
 		return NULL;
 	}
 
diff --git a/drivers/iommu/io-pgtable-arm.c b/drivers/iommu/io-pgtable-arm.c
index 73c0748..7df9777 100644
--- a/drivers/iommu/io-pgtable-arm.c
+++ b/drivers/iommu/io-pgtable-arm.c
@@ -202,9 +202,9 @@
 
 static bool selftest_running = false;
 
-static dma_addr_t __arm_lpae_dma_addr(struct device *dev, void *pages)
+static dma_addr_t __arm_lpae_dma_addr(void *pages)
 {
-	return phys_to_dma(dev, virt_to_phys(pages));
+	return (dma_addr_t)virt_to_phys(pages);
 }
 
 static void *__arm_lpae_alloc_pages(size_t size, gfp_t gfp,
@@ -223,10 +223,10 @@
 			goto out_free;
 		/*
 		 * We depend on the IOMMU being able to work with any physical
-		 * address directly, so if the DMA layer suggests it can't by
-		 * giving us back some translation, that bodes very badly...
+		 * address directly, so if the DMA layer suggests otherwise by
+		 * translating or truncating them, that bodes very badly...
 		 */
-		if (dma != __arm_lpae_dma_addr(dev, pages))
+		if (dma != virt_to_phys(pages))
 			goto out_unmap;
 	}
 
@@ -243,10 +243,8 @@
 static void __arm_lpae_free_pages(void *pages, size_t size,
 				  struct io_pgtable_cfg *cfg)
 {
-	struct device *dev = cfg->iommu_dev;
-
 	if (!selftest_running)
-		dma_unmap_single(dev, __arm_lpae_dma_addr(dev, pages),
+		dma_unmap_single(cfg->iommu_dev, __arm_lpae_dma_addr(pages),
 				 size, DMA_TO_DEVICE);
 	free_pages_exact(pages, size);
 }
@@ -254,12 +252,11 @@
 static void __arm_lpae_set_pte(arm_lpae_iopte *ptep, arm_lpae_iopte pte,
 			       struct io_pgtable_cfg *cfg)
 {
-	struct device *dev = cfg->iommu_dev;
-
 	*ptep = pte;
 
 	if (!selftest_running)
-		dma_sync_single_for_device(dev, __arm_lpae_dma_addr(dev, ptep),
+		dma_sync_single_for_device(cfg->iommu_dev,
+					   __arm_lpae_dma_addr(ptep),
 					   sizeof(pte), DMA_TO_DEVICE);
 }
 
@@ -629,6 +626,11 @@
 	if (cfg->oas > ARM_LPAE_MAX_ADDR_BITS)
 		return NULL;
 
+	if (!selftest_running && cfg->iommu_dev->dma_pfn_offset) {
+		dev_err(cfg->iommu_dev, "Cannot accommodate DMA offset for IOMMU page tables\n");
+		return NULL;
+	}
+
 	data = kmalloc(sizeof(*data), GFP_KERNEL);
 	if (!data)
 		return NULL;
diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index 982c09c..d4add30 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -41,7 +41,6 @@
 #include <linux/irqchip.h>
 #include <linux/irqchip/chained_irq.h>
 #include <linux/irqchip/arm-gic.h>
-#include <linux/irqchip/arm-gic-acpi.h>
 
 #include <asm/cputype.h>
 #include <asm/irq.h>
@@ -1195,7 +1194,7 @@
 #endif
 
 #ifdef CONFIG_ACPI
-static phys_addr_t dist_phy_base, cpu_phy_base __initdata;
+static phys_addr_t cpu_phy_base __initdata;
 
 static int __init
 gic_acpi_parse_madt_cpu(struct acpi_subtable_header *header,
@@ -1223,60 +1222,56 @@
 	return 0;
 }
 
-static int __init
-gic_acpi_parse_madt_distributor(struct acpi_subtable_header *header,
-				const unsigned long end)
+/* The things you have to do to just *count* something... */
+static int __init acpi_dummy_func(struct acpi_subtable_header *header,
+				  const unsigned long end)
 {
-	struct acpi_madt_generic_distributor *dist;
-
-	dist = (struct acpi_madt_generic_distributor *)header;
-
-	if (BAD_MADT_ENTRY(dist, end))
-		return -EINVAL;
-
-	dist_phy_base = dist->base_address;
 	return 0;
 }
 
-int __init
-gic_v2_acpi_init(struct acpi_table_header *table)
+static bool __init acpi_gic_redist_is_present(void)
 {
+	return acpi_table_parse_madt(ACPI_MADT_TYPE_GENERIC_REDISTRIBUTOR,
+				     acpi_dummy_func, 0) > 0;
+}
+
+static bool __init gic_validate_dist(struct acpi_subtable_header *header,
+				     struct acpi_probe_entry *ape)
+{
+	struct acpi_madt_generic_distributor *dist;
+	dist = (struct acpi_madt_generic_distributor *)header;
+
+	return (dist->version == ape->driver_data &&
+		(dist->version != ACPI_MADT_GIC_VERSION_NONE ||
+		 !acpi_gic_redist_is_present()));
+}
+
+#define ACPI_GICV2_DIST_MEM_SIZE	(SZ_4K)
+#define ACPI_GIC_CPU_IF_MEM_SIZE	(SZ_8K)
+
+static int __init gic_v2_acpi_init(struct acpi_subtable_header *header,
+				   const unsigned long end)
+{
+	struct acpi_madt_generic_distributor *dist;
 	void __iomem *cpu_base, *dist_base;
 	int count;
 
 	/* Collect CPU base addresses */
-	count = acpi_parse_entries(ACPI_SIG_MADT,
-				   sizeof(struct acpi_table_madt),
-				   gic_acpi_parse_madt_cpu, table,
-				   ACPI_MADT_TYPE_GENERIC_INTERRUPT, 0);
+	count = acpi_table_parse_madt(ACPI_MADT_TYPE_GENERIC_INTERRUPT,
+				      gic_acpi_parse_madt_cpu, 0);
 	if (count <= 0) {
 		pr_err("No valid GICC entries exist\n");
 		return -EINVAL;
 	}
 
-	/*
-	 * Find distributor base address. We expect one distributor entry since
-	 * ACPI 5.1 spec neither support multi-GIC instances nor GIC cascade.
-	 */
-	count = acpi_parse_entries(ACPI_SIG_MADT,
-				   sizeof(struct acpi_table_madt),
-				   gic_acpi_parse_madt_distributor, table,
-				   ACPI_MADT_TYPE_GENERIC_DISTRIBUTOR, 0);
-	if (count <= 0) {
-		pr_err("No valid GICD entries exist\n");
-		return -EINVAL;
-	} else if (count > 1) {
-		pr_err("More than one GICD entry detected\n");
-		return -EINVAL;
-	}
-
 	cpu_base = ioremap(cpu_phy_base, ACPI_GIC_CPU_IF_MEM_SIZE);
 	if (!cpu_base) {
 		pr_err("Unable to map GICC registers\n");
 		return -ENOMEM;
 	}
 
-	dist_base = ioremap(dist_phy_base, ACPI_GICV2_DIST_MEM_SIZE);
+	dist = (struct acpi_madt_generic_distributor *)header;
+	dist_base = ioremap(dist->base_address, ACPI_GICV2_DIST_MEM_SIZE);
 	if (!dist_base) {
 		pr_err("Unable to map GICD registers\n");
 		iounmap(cpu_base);
@@ -1302,4 +1297,10 @@
 	acpi_irq_model = ACPI_IRQ_MODEL_GIC;
 	return 0;
 }
+IRQCHIP_ACPI_DECLARE(gic_v2, ACPI_MADT_TYPE_GENERIC_DISTRIBUTOR,
+		     gic_validate_dist, ACPI_MADT_GIC_VERSION_V2,
+		     gic_v2_acpi_init);
+IRQCHIP_ACPI_DECLARE(gic_v2_maybe, ACPI_MADT_TYPE_GENERIC_DISTRIBUTOR,
+		     gic_validate_dist, ACPI_MADT_GIC_VERSION_NONE,
+		     gic_v2_acpi_init);
 #endif
diff --git a/drivers/irqchip/irqchip.c b/drivers/irqchip/irqchip.c
index afd1af3..2b35e68 100644
--- a/drivers/irqchip/irqchip.c
+++ b/drivers/irqchip/irqchip.c
@@ -8,7 +8,7 @@
  * warranty of any kind, whether express or implied.
  */
 
-#include <linux/acpi_irq.h>
+#include <linux/acpi.h>
 #include <linux/init.h>
 #include <linux/of_irq.h>
 #include <linux/irqchip.h>
@@ -27,6 +27,5 @@
 void __init irqchip_init(void)
 {
 	of_irq_init(__irqchip_of_table);
-
-	acpi_irq_init();
+	acpi_probe_device_table(irqchip);
 }
diff --git a/drivers/md/dm-cache-metadata.c b/drivers/md/dm-cache-metadata.c
index 20cc36b..0a17d1b 100644
--- a/drivers/md/dm-cache-metadata.c
+++ b/drivers/md/dm-cache-metadata.c
@@ -634,10 +634,10 @@
 
 	disk_super = dm_block_data(sblock);
 
+	disk_super->flags = cpu_to_le32(cmd->flags);
 	if (mutator)
 		update_flags(disk_super, mutator);
 
-	disk_super->flags = cpu_to_le32(cmd->flags);
 	disk_super->mapping_root = cpu_to_le64(cmd->root);
 	disk_super->hint_root = cpu_to_le64(cmd->hint_root);
 	disk_super->discard_root = cpu_to_le64(cmd->discard_root);
diff --git a/drivers/md/dm-snap-persistent.c b/drivers/md/dm-snap-persistent.c
index aeacad9..117a05e 100644
--- a/drivers/md/dm-snap-persistent.c
+++ b/drivers/md/dm-snap-persistent.c
@@ -847,6 +847,7 @@
 static int persistent_ctr(struct dm_exception_store *store, char *options)
 {
 	struct pstore *ps;
+	int r;
 
 	/* allocate the pstore */
 	ps = kzalloc(sizeof(*ps), GFP_KERNEL);
@@ -868,9 +869,9 @@
 
 	ps->metadata_wq = alloc_workqueue("ksnaphd", WQ_MEM_RECLAIM, 0);
 	if (!ps->metadata_wq) {
-		kfree(ps);
 		DMERR("couldn't start header metadata update thread");
-		return -ENOMEM;
+		r = -ENOMEM;
+		goto err_workqueue;
 	}
 
 	if (options) {
@@ -879,13 +880,21 @@
 			store->userspace_supports_overflow = true;
 		else {
 			DMERR("Unsupported persistent store option: %s", options);
-			return -EINVAL;
+			r = -EINVAL;
+			goto err_options;
 		}
 	}
 
 	store->context = ps;
 
 	return 0;
+
+err_options:
+	destroy_workqueue(ps->metadata_wq);
+err_workqueue:
+	kfree(ps);
+
+	return r;
 }
 
 static unsigned persistent_status(struct dm_exception_store *store,
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 6fcbfb0..3897b90 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -3201,7 +3201,7 @@
 						metadata_low_callback,
 						pool);
 	if (r)
-		goto out_free_pt;
+		goto out_flags_changed;
 
 	pt->callbacks.congested_fn = pool_is_congested;
 	dm_table_add_target_callbacks(ti->table, &pt->callbacks);
diff --git a/drivers/md/persistent-data/dm-btree-remove.c b/drivers/md/persistent-data/dm-btree-remove.c
index 421a36c..2e4c4cb 100644
--- a/drivers/md/persistent-data/dm-btree-remove.c
+++ b/drivers/md/persistent-data/dm-btree-remove.c
@@ -301,11 +301,16 @@
 {
 	int s;
 	uint32_t max_entries = le32_to_cpu(left->header.max_entries);
-	unsigned target = (nr_left + nr_center + nr_right) / 3;
-	BUG_ON(target > max_entries);
+	unsigned total = nr_left + nr_center + nr_right;
+	unsigned target_right = total / 3;
+	unsigned remainder = (target_right * 3) != total;
+	unsigned target_left = target_right + remainder;
+
+	BUG_ON(target_left > max_entries);
+	BUG_ON(target_right > max_entries);
 
 	if (nr_left < nr_right) {
-		s = nr_left - target;
+		s = nr_left - target_left;
 
 		if (s < 0 && nr_center < -s) {
 			/* not enough in central node */
@@ -316,10 +321,10 @@
 		} else
 			shift(left, center, s);
 
-		shift(center, right, target - nr_right);
+		shift(center, right, target_right - nr_right);
 
 	} else {
-		s = target - nr_right;
+		s = target_right - nr_right;
 		if (s > 0 && nr_center < s) {
 			/* not enough in central node */
 			shift(center, right, nr_center);
@@ -329,7 +334,7 @@
 		} else
 			shift(center, right, s);
 
-		shift(left, center, nr_left - target);
+		shift(left, center, nr_left - target_left);
 	}
 
 	*key_ptr(parent, c->index) = center->keys[0];
diff --git a/drivers/md/persistent-data/dm-btree.c b/drivers/md/persistent-data/dm-btree.c
index b6cec25..0e09aef 100644
--- a/drivers/md/persistent-data/dm-btree.c
+++ b/drivers/md/persistent-data/dm-btree.c
@@ -523,7 +523,7 @@
 
 	r = new_block(s->info, &right);
 	if (r < 0) {
-		/* FIXME: put left */
+		unlock_block(s->info, left);
 		return r;
 	}
 
diff --git a/drivers/media/dvb-frontends/horus3a.h b/drivers/media/dvb-frontends/horus3a.h
index b055319..c1e2d18 100644
--- a/drivers/media/dvb-frontends/horus3a.h
+++ b/drivers/media/dvb-frontends/horus3a.h
@@ -46,8 +46,8 @@
 					const struct horus3a_config *config,
 					struct i2c_adapter *i2c);
 #else
-static inline struct dvb_frontend *horus3a_attach(
-					const struct cxd2820r_config *config,
+static inline struct dvb_frontend *horus3a_attach(struct dvb_frontend *fe,
+					const struct horus3a_config *config,
 					struct i2c_adapter *i2c)
 {
 	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
diff --git a/drivers/media/dvb-frontends/lnbh25.h b/drivers/media/dvb-frontends/lnbh25.h
index 69f30e2..1f329ef 100644
--- a/drivers/media/dvb-frontends/lnbh25.h
+++ b/drivers/media/dvb-frontends/lnbh25.h
@@ -43,7 +43,7 @@
 	struct lnbh25_config *cfg,
 	struct i2c_adapter *i2c);
 #else
-static inline dvb_frontend *lnbh25_attach(
+static inline struct dvb_frontend *lnbh25_attach(
 	struct dvb_frontend *fe,
 	struct lnbh25_config *cfg,
 	struct i2c_adapter *i2c)
diff --git a/drivers/media/dvb-frontends/m88ds3103.c b/drivers/media/dvb-frontends/m88ds3103.c
index ff31e7a..feeeb70 100644
--- a/drivers/media/dvb-frontends/m88ds3103.c
+++ b/drivers/media/dvb-frontends/m88ds3103.c
@@ -18,6 +18,27 @@
 
 static struct dvb_frontend_ops m88ds3103_ops;
 
+/* write single register with mask */
+static int m88ds3103_update_bits(struct m88ds3103_dev *dev,
+				u8 reg, u8 mask, u8 val)
+{
+	int ret;
+	u8 tmp;
+
+	/* no need for read if whole reg is written */
+	if (mask != 0xff) {
+		ret = regmap_bulk_read(dev->regmap, reg, &tmp, 1);
+		if (ret)
+			return ret;
+
+		val &= mask;
+		tmp &= ~mask;
+		val |= tmp;
+	}
+
+	return regmap_bulk_write(dev->regmap, reg, &val, 1);
+}
+
 /* write reg val table using reg addr auto increment */
 static int m88ds3103_wr_reg_val_tab(struct m88ds3103_dev *dev,
 		const struct m88ds3103_reg_val *tab, int tab_len)
@@ -394,10 +415,10 @@
 			u8tmp2 = 0x00; /* 0b00 */
 			break;
 		}
-		ret = regmap_update_bits(dev->regmap, 0x22, 0xc0, u8tmp1 << 6);
+		ret = m88ds3103_update_bits(dev, 0x22, 0xc0, u8tmp1 << 6);
 		if (ret)
 			goto err;
-		ret = regmap_update_bits(dev->regmap, 0x24, 0xc0, u8tmp2 << 6);
+		ret = m88ds3103_update_bits(dev, 0x24, 0xc0, u8tmp2 << 6);
 		if (ret)
 			goto err;
 	}
@@ -455,13 +476,13 @@
 			if (ret)
 				goto err;
 		}
-		ret = regmap_update_bits(dev->regmap, 0x9d, 0x08, 0x08);
+		ret = m88ds3103_update_bits(dev, 0x9d, 0x08, 0x08);
 		if (ret)
 			goto err;
 		ret = regmap_write(dev->regmap, 0xf1, 0x01);
 		if (ret)
 			goto err;
-		ret = regmap_update_bits(dev->regmap, 0x30, 0x80, 0x80);
+		ret = m88ds3103_update_bits(dev, 0x30, 0x80, 0x80);
 		if (ret)
 			goto err;
 	}
@@ -498,7 +519,7 @@
 	switch (dev->cfg->ts_mode) {
 	case M88DS3103_TS_SERIAL:
 	case M88DS3103_TS_SERIAL_D7:
-		ret = regmap_update_bits(dev->regmap, 0x29, 0x20, u8tmp1);
+		ret = m88ds3103_update_bits(dev, 0x29, 0x20, u8tmp1);
 		if (ret)
 			goto err;
 		u8tmp1 = 0;
@@ -567,11 +588,11 @@
 	if (ret)
 		goto err;
 
-	ret = regmap_update_bits(dev->regmap, 0x4d, 0x02, dev->cfg->spec_inv << 1);
+	ret = m88ds3103_update_bits(dev, 0x4d, 0x02, dev->cfg->spec_inv << 1);
 	if (ret)
 		goto err;
 
-	ret = regmap_update_bits(dev->regmap, 0x30, 0x10, dev->cfg->agc_inv << 4);
+	ret = m88ds3103_update_bits(dev, 0x30, 0x10, dev->cfg->agc_inv << 4);
 	if (ret)
 		goto err;
 
@@ -625,13 +646,13 @@
 	dev->warm = false;
 
 	/* wake up device from sleep */
-	ret = regmap_update_bits(dev->regmap, 0x08, 0x01, 0x01);
+	ret = m88ds3103_update_bits(dev, 0x08, 0x01, 0x01);
 	if (ret)
 		goto err;
-	ret = regmap_update_bits(dev->regmap, 0x04, 0x01, 0x00);
+	ret = m88ds3103_update_bits(dev, 0x04, 0x01, 0x00);
 	if (ret)
 		goto err;
-	ret = regmap_update_bits(dev->regmap, 0x23, 0x10, 0x00);
+	ret = m88ds3103_update_bits(dev, 0x23, 0x10, 0x00);
 	if (ret)
 		goto err;
 
@@ -749,18 +770,18 @@
 		utmp = 0x29;
 	else
 		utmp = 0x27;
-	ret = regmap_update_bits(dev->regmap, utmp, 0x01, 0x00);
+	ret = m88ds3103_update_bits(dev, utmp, 0x01, 0x00);
 	if (ret)
 		goto err;
 
 	/* sleep */
-	ret = regmap_update_bits(dev->regmap, 0x08, 0x01, 0x00);
+	ret = m88ds3103_update_bits(dev, 0x08, 0x01, 0x00);
 	if (ret)
 		goto err;
-	ret = regmap_update_bits(dev->regmap, 0x04, 0x01, 0x01);
+	ret = m88ds3103_update_bits(dev, 0x04, 0x01, 0x01);
 	if (ret)
 		goto err;
-	ret = regmap_update_bits(dev->regmap, 0x23, 0x10, 0x10);
+	ret = m88ds3103_update_bits(dev, 0x23, 0x10, 0x10);
 	if (ret)
 		goto err;
 
@@ -992,12 +1013,12 @@
 	}
 
 	utmp = tone << 7 | dev->cfg->envelope_mode << 5;
-	ret = regmap_update_bits(dev->regmap, 0xa2, 0xe0, utmp);
+	ret = m88ds3103_update_bits(dev, 0xa2, 0xe0, utmp);
 	if (ret)
 		goto err;
 
 	utmp = 1 << 2;
-	ret = regmap_update_bits(dev->regmap, 0xa1, reg_a1_mask, utmp);
+	ret = m88ds3103_update_bits(dev, 0xa1, reg_a1_mask, utmp);
 	if (ret)
 		goto err;
 
@@ -1047,7 +1068,7 @@
 	voltage_dis ^= dev->cfg->lnb_en_pol;
 
 	utmp = voltage_dis << 1 | voltage_sel << 0;
-	ret = regmap_update_bits(dev->regmap, 0xa2, 0x03, utmp);
+	ret = m88ds3103_update_bits(dev, 0xa2, 0x03, utmp);
 	if (ret)
 		goto err;
 
@@ -1080,7 +1101,7 @@
 	}
 
 	utmp = dev->cfg->envelope_mode << 5;
-	ret = regmap_update_bits(dev->regmap, 0xa2, 0xe0, utmp);
+	ret = m88ds3103_update_bits(dev, 0xa2, 0xe0, utmp);
 	if (ret)
 		goto err;
 
@@ -1115,12 +1136,12 @@
 	} else {
 		dev_dbg(&client->dev, "diseqc tx timeout\n");
 
-		ret = regmap_update_bits(dev->regmap, 0xa1, 0xc0, 0x40);
+		ret = m88ds3103_update_bits(dev, 0xa1, 0xc0, 0x40);
 		if (ret)
 			goto err;
 	}
 
-	ret = regmap_update_bits(dev->regmap, 0xa2, 0xc0, 0x80);
+	ret = m88ds3103_update_bits(dev, 0xa2, 0xc0, 0x80);
 	if (ret)
 		goto err;
 
@@ -1152,7 +1173,7 @@
 	}
 
 	utmp = dev->cfg->envelope_mode << 5;
-	ret = regmap_update_bits(dev->regmap, 0xa2, 0xe0, utmp);
+	ret = m88ds3103_update_bits(dev, 0xa2, 0xe0, utmp);
 	if (ret)
 		goto err;
 
@@ -1194,12 +1215,12 @@
 	} else {
 		dev_dbg(&client->dev, "diseqc tx timeout\n");
 
-		ret = regmap_update_bits(dev->regmap, 0xa1, 0xc0, 0x40);
+		ret = m88ds3103_update_bits(dev, 0xa1, 0xc0, 0x40);
 		if (ret)
 			goto err;
 	}
 
-	ret = regmap_update_bits(dev->regmap, 0xa2, 0xc0, 0x80);
+	ret = m88ds3103_update_bits(dev, 0xa2, 0xc0, 0x80);
 	if (ret)
 		goto err;
 
@@ -1435,13 +1456,13 @@
 		goto err_kfree;
 
 	/* sleep */
-	ret = regmap_update_bits(dev->regmap, 0x08, 0x01, 0x00);
+	ret = m88ds3103_update_bits(dev, 0x08, 0x01, 0x00);
 	if (ret)
 		goto err_kfree;
-	ret = regmap_update_bits(dev->regmap, 0x04, 0x01, 0x01);
+	ret = m88ds3103_update_bits(dev, 0x04, 0x01, 0x01);
 	if (ret)
 		goto err_kfree;
-	ret = regmap_update_bits(dev->regmap, 0x23, 0x10, 0x10);
+	ret = m88ds3103_update_bits(dev, 0x23, 0x10, 0x10);
 	if (ret)
 		goto err_kfree;
 
diff --git a/drivers/media/dvb-frontends/si2168.c b/drivers/media/dvb-frontends/si2168.c
index 81788c5..821a8f4 100644
--- a/drivers/media/dvb-frontends/si2168.c
+++ b/drivers/media/dvb-frontends/si2168.c
@@ -502,6 +502,10 @@
 		/* firmware is in the new format */
 		for (remaining = fw->size; remaining > 0; remaining -= 17) {
 			len = fw->data[fw->size - remaining];
+			if (len > SI2168_ARGLEN) {
+				ret = -EINVAL;
+				break;
+			}
 			memcpy(cmd.args, &fw->data[(fw->size - remaining) + 1], len);
 			cmd.wlen = len;
 			cmd.rlen = 1;
diff --git a/drivers/media/pci/netup_unidvb/netup_unidvb_spi.c b/drivers/media/pci/netup_unidvb/netup_unidvb_spi.c
index f55b327..56773f3 100644
--- a/drivers/media/pci/netup_unidvb/netup_unidvb_spi.c
+++ b/drivers/media/pci/netup_unidvb/netup_unidvb_spi.c
@@ -80,11 +80,9 @@
 	u16 reg;
 	unsigned long flags;
 
-	if (!spi) {
-		dev_dbg(&spi->master->dev,
-			"%s(): SPI not initialized\n", __func__);
+	if (!spi)
 		return IRQ_NONE;
-	}
+
 	spin_lock_irqsave(&spi->lock, flags);
 	reg = readw(&spi->regs->control_stat);
 	if (!(reg & NETUP_SPI_CTRL_IRQ)) {
@@ -234,11 +232,9 @@
 	unsigned long flags;
 	struct netup_spi *spi = ndev->spi;
 
-	if (!spi) {
-		dev_dbg(&spi->master->dev,
-			"%s(): SPI not initialized\n", __func__);
+	if (!spi)
 		return;
-	}
+
 	spin_lock_irqsave(&spi->lock, flags);
 	reg = readw(&spi->regs->control_stat);
 	writew(reg | NETUP_SPI_CTRL_IRQ, &spi->regs->control_stat);
diff --git a/drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c b/drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c
index 486aef5..f922f2e 100644
--- a/drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c
+++ b/drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c
@@ -1097,7 +1097,7 @@
 	Elf32_Ehdr *ehdr;
 	Elf32_Phdr *phdr;
 	u8 __iomem *dst;
-	int err, i;
+	int err = 0, i;
 
 	if (!fw || !context)
 		return -EINVAL;
@@ -1106,7 +1106,7 @@
 	phdr = (Elf32_Phdr *)(fw->data + ehdr->e_phoff);
 
 	/* go through the available ELF segments */
-	for (i = 0; i < ehdr->e_phnum && !err; i++, phdr++) {
+	for (i = 0; i < ehdr->e_phnum; i++, phdr++) {
 
 		/* Only consider LOAD segments */
 		if (phdr->p_type != PT_LOAD)
@@ -1192,7 +1192,6 @@
 
 static int load_c8sectpfe_fw_step1(struct c8sectpfei *fei)
 {
-	int ret;
 	int err;
 
 	dev_info(fei->dev, "Loading firmware: %s\n", FIRMWARE_MEMDMA);
@@ -1207,7 +1206,7 @@
 	if (err) {
 		dev_err(fei->dev, "request_firmware_nowait err: %d.\n", err);
 		complete_all(&fei->fw_ack);
-		return ret;
+		return err;
 	}
 
 	return 0;
diff --git a/drivers/media/rc/ir-hix5hd2.c b/drivers/media/rc/ir-hix5hd2.c
index 1c087cb..d0549fb 100644
--- a/drivers/media/rc/ir-hix5hd2.c
+++ b/drivers/media/rc/ir-hix5hd2.c
@@ -257,7 +257,7 @@
 		goto clkerr;
 
 	if (devm_request_irq(dev, priv->irq, hix5hd2_ir_rx_interrupt,
-			     IRQF_NO_SUSPEND, pdev->name, priv) < 0) {
+			     0, pdev->name, priv) < 0) {
 		dev_err(dev, "IRQ %d register failed\n", priv->irq);
 		ret = -EINVAL;
 		goto regerr;
diff --git a/drivers/media/tuners/si2157.c b/drivers/media/tuners/si2157.c
index 5073821..ce157ed 100644
--- a/drivers/media/tuners/si2157.c
+++ b/drivers/media/tuners/si2157.c
@@ -166,6 +166,10 @@
 
 	for (remaining = fw->size; remaining > 0; remaining -= 17) {
 		len = fw->data[fw->size - remaining];
+		if (len > SI2157_ARGLEN) {
+			dev_err(&client->dev, "Bad firmware length\n");
+			goto err_release_firmware;
+		}
 		memcpy(cmd.args, &fw->data[(fw->size - remaining) + 1], len);
 		cmd.wlen = len;
 		cmd.rlen = 1;
diff --git a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
index c3cac4c..197a4f2 100644
--- a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
+++ b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
@@ -34,6 +34,14 @@
 	unsigned int pipe;
 	u8 requesttype;
 
+	mutex_lock(&d->usb_mutex);
+
+	if (req->size > sizeof(dev->buf)) {
+		dev_err(&d->intf->dev, "too large message %u\n", req->size);
+		ret = -EINVAL;
+		goto err_mutex_unlock;
+	}
+
 	if (req->index & CMD_WR_FLAG) {
 		/* write */
 		memcpy(dev->buf, req->data, req->size);
@@ -50,14 +58,17 @@
 	dvb_usb_dbg_usb_control_msg(d->udev, 0, requesttype, req->value,
 			req->index, dev->buf, req->size);
 	if (ret < 0)
-		goto err;
+		goto err_mutex_unlock;
 
 	/* read request, copy returned data to return buf */
 	if (requesttype == (USB_TYPE_VENDOR | USB_DIR_IN))
 		memcpy(req->data, dev->buf, req->size);
 
+	mutex_unlock(&d->usb_mutex);
+
 	return 0;
-err:
+err_mutex_unlock:
+	mutex_unlock(&d->usb_mutex);
 	dev_dbg(&d->intf->dev, "failed=%d\n", ret);
 	return ret;
 }
diff --git a/drivers/media/usb/dvb-usb-v2/rtl28xxu.h b/drivers/media/usb/dvb-usb-v2/rtl28xxu.h
index 9f6115a2..1380629 100644
--- a/drivers/media/usb/dvb-usb-v2/rtl28xxu.h
+++ b/drivers/media/usb/dvb-usb-v2/rtl28xxu.h
@@ -71,7 +71,7 @@
 
 
 struct rtl28xxu_dev {
-	u8 buf[28];
+	u8 buf[128];
 	u8 chip_id;
 	u8 tuner;
 	char *tuner_name;
diff --git a/drivers/media/v4l2-core/Kconfig b/drivers/media/v4l2-core/Kconfig
index 82876a6..9beece0 100644
--- a/drivers/media/v4l2-core/Kconfig
+++ b/drivers/media/v4l2-core/Kconfig
@@ -47,7 +47,7 @@
 # Used by LED subsystem flash drivers
 config V4L2_FLASH_LED_CLASS
 	tristate "V4L2 flash API for LED flash class devices"
-	depends on VIDEO_V4L2_SUBDEV_API
+	depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
 	depends on LEDS_CLASS_FLASH
 	---help---
 	  Say Y here to enable V4L2 flash API support for LED flash
diff --git a/drivers/memory/Kconfig b/drivers/memory/Kconfig
index c6a644b..6f31546 100644
--- a/drivers/memory/Kconfig
+++ b/drivers/memory/Kconfig
@@ -58,12 +58,18 @@
 	  memory drives like NOR, NAND, OneNAND, SRAM.
 
 config OMAP_GPMC_DEBUG
-	bool
+	bool "Enable GPMC debug output and skip reset of GPMC during init"
 	depends on OMAP_GPMC
 	help
 	  Enables verbose debugging mostly to decode the bootloader provided
-	  timings. Enable this during development to configure devices
-	  connected to the GPMC bus.
+	  timings. To preserve the bootloader provided timings, the reset
+	  of GPMC is skipped during init. Enable this during development to
+	  configure devices connected to the GPMC bus.
+
+	  NOTE: In addition to matching the register setup with the bootloader
+	  you also need to match the GPMC FCLK frequency used by the
+	  bootloader or else the GPMC timings won't be identical with the
+	  bootloader timings.
 
 config MVEBU_DEVBUS
 	bool "Marvell EBU Device Bus Controller"
diff --git a/drivers/memory/omap-gpmc.c b/drivers/memory/omap-gpmc.c
index 32ac049..6515dfc 100644
--- a/drivers/memory/omap-gpmc.c
+++ b/drivers/memory/omap-gpmc.c
@@ -696,7 +696,6 @@
 	int div;
 	u32 l;
 
-	gpmc_cs_show_timings(cs, "before gpmc_cs_set_timings");
 	div = gpmc_calc_divider(t->sync_clk);
 	if (div < 0)
 		return div;
@@ -1988,6 +1987,7 @@
 	if (ret < 0)
 		goto err;
 
+	gpmc_cs_show_timings(cs, "before gpmc_cs_program_settings");
 	ret = gpmc_cs_program_settings(cs, &gpmc_s);
 	if (ret < 0)
 		goto err;
diff --git a/drivers/mfd/intel-lpss.h b/drivers/mfd/intel-lpss.h
index f28cb28..2c7f8d7 100644
--- a/drivers/mfd/intel-lpss.h
+++ b/drivers/mfd/intel-lpss.h
@@ -42,6 +42,8 @@
 	.thaw = intel_lpss_resume,		\
 	.poweroff = intel_lpss_suspend,		\
 	.restore = intel_lpss_resume,
+#else
+#define INTEL_LPSS_SLEEP_PM_OPS
 #endif
 
 #define INTEL_LPSS_RUNTIME_PM_OPS		\
diff --git a/drivers/mfd/max77843.c b/drivers/mfd/max77843.c
index c52162e..586098f 100644
--- a/drivers/mfd/max77843.c
+++ b/drivers/mfd/max77843.c
@@ -80,7 +80,7 @@
 	if (!max77843->i2c_chg) {
 		dev_err(&max77843->i2c->dev,
 				"Cannot allocate I2C device for Charger\n");
-		return PTR_ERR(max77843->i2c_chg);
+		return -ENODEV;
 	}
 	i2c_set_clientdata(max77843->i2c_chg, max77843);
 
diff --git a/drivers/misc/cxl/api.c b/drivers/misc/cxl/api.c
index 8af12c8..103baf0 100644
--- a/drivers/misc/cxl/api.c
+++ b/drivers/misc/cxl/api.c
@@ -105,6 +105,7 @@
 
 void cxl_free_afu_irqs(struct cxl_context *ctx)
 {
+	afu_irq_name_free(ctx);
 	cxl_release_irq_ranges(&ctx->irqs, ctx->afu->adapter);
 }
 EXPORT_SYMBOL_GPL(cxl_free_afu_irqs);
diff --git a/drivers/misc/cxl/context.c b/drivers/misc/cxl/context.c
index e762f85..2faa127 100644
--- a/drivers/misc/cxl/context.c
+++ b/drivers/misc/cxl/context.c
@@ -275,6 +275,9 @@
 	if (ctx->kernelapi)
 		kfree(ctx->mapping);
 
+	if (ctx->irq_bitmap)
+		kfree(ctx->irq_bitmap);
+
 	kfree(ctx);
 }
 
diff --git a/drivers/misc/cxl/cxl.h b/drivers/misc/cxl/cxl.h
index 1c30ef7..0cfb9c1 100644
--- a/drivers/misc/cxl/cxl.h
+++ b/drivers/misc/cxl/cxl.h
@@ -677,6 +677,7 @@
 void cxl_release_serr_irq(struct cxl_afu *afu);
 int afu_register_irqs(struct cxl_context *ctx, u32 count);
 void afu_release_irqs(struct cxl_context *ctx, void *cookie);
+void afu_irq_name_free(struct cxl_context *ctx);
 irqreturn_t cxl_slice_irq_err(int irq, void *data);
 
 int cxl_debugfs_init(void);
diff --git a/drivers/misc/cxl/file.c b/drivers/misc/cxl/file.c
index a30bf28..7ccd299 100644
--- a/drivers/misc/cxl/file.c
+++ b/drivers/misc/cxl/file.c
@@ -120,9 +120,16 @@
 		 __func__, ctx->pe);
 	cxl_context_detach(ctx);
 
-	mutex_lock(&ctx->mapping_lock);
-	ctx->mapping = NULL;
-	mutex_unlock(&ctx->mapping_lock);
+
+	/*
+	 * Delete the context's mapping pointer, unless it's created by the
+	 * kernel API, in which case leave it so it can be freed by reclaim_ctx()
+	 */
+	if (!ctx->kernelapi) {
+		mutex_lock(&ctx->mapping_lock);
+		ctx->mapping = NULL;
+		mutex_unlock(&ctx->mapping_lock);
+	}
 
 	put_device(&ctx->afu->dev);
 
diff --git a/drivers/misc/cxl/irq.c b/drivers/misc/cxl/irq.c
index 583b42a..09a4060 100644
--- a/drivers/misc/cxl/irq.c
+++ b/drivers/misc/cxl/irq.c
@@ -414,7 +414,7 @@
 	kfree(afu->psl_irq_name);
 }
 
-static void afu_irq_name_free(struct cxl_context *ctx)
+void afu_irq_name_free(struct cxl_context *ctx)
 {
 	struct cxl_irq_name *irq_name, *tmp;
 
@@ -524,7 +524,5 @@
 	afu_irq_name_free(ctx);
 	cxl_release_irq_ranges(&ctx->irqs, ctx->afu->adapter);
 
-	kfree(ctx->irq_bitmap);
-	ctx->irq_bitmap = NULL;
 	ctx->irq_count = 0;
 }
diff --git a/drivers/misc/cxl/native.c b/drivers/misc/cxl/native.c
index b37f2e8..d2e75c8 100644
--- a/drivers/misc/cxl/native.c
+++ b/drivers/misc/cxl/native.c
@@ -457,6 +457,7 @@
 
 	dev_info(&afu->dev, "Activating AFU directed mode\n");
 
+	afu->num_procs = afu->max_procs_virtualised;
 	if (afu->spa == NULL) {
 		if (cxl_alloc_spa(afu))
 			return -ENOMEM;
@@ -468,7 +469,6 @@
 	cxl_p1n_write(afu, CXL_PSL_ID_An, CXL_PSL_ID_An_F | CXL_PSL_ID_An_L);
 
 	afu->current_mode = CXL_MODE_DIRECTED;
-	afu->num_procs = afu->max_procs_virtualised;
 
 	if ((rc = cxl_chardev_m_afu_add(afu)))
 		return rc;
diff --git a/drivers/misc/cxl/pci.c b/drivers/misc/cxl/pci.c
index a5e9771..85761d7 100644
--- a/drivers/misc/cxl/pci.c
+++ b/drivers/misc/cxl/pci.c
@@ -1035,6 +1035,32 @@
 	return 0;
 }
 
+/*
+ * Workaround a PCIe Host Bridge defect on some cards, that can cause
+ * malformed Transaction Layer Packet (TLP) errors to be erroneously
+ * reported. Mask this error in the Uncorrectable Error Mask Register.
+ *
+ * The upper nibble of the PSL revision is used to distinguish between
+ * different cards. The affected ones have it set to 0.
+ */
+static void cxl_fixup_malformed_tlp(struct cxl *adapter, struct pci_dev *dev)
+{
+	int aer;
+	u32 data;
+
+	if (adapter->psl_rev & 0xf000)
+		return;
+	if (!(aer = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR)))
+		return;
+	pci_read_config_dword(dev, aer + PCI_ERR_UNCOR_MASK, &data);
+	if (data & PCI_ERR_UNC_MALF_TLP)
+		if (data & PCI_ERR_UNC_INTN)
+			return;
+	data |= PCI_ERR_UNC_MALF_TLP;
+	data |= PCI_ERR_UNC_INTN;
+	pci_write_config_dword(dev, aer + PCI_ERR_UNCOR_MASK, data);
+}
+
 static int cxl_vsec_looks_ok(struct cxl *adapter, struct pci_dev *dev)
 {
 	if (adapter->vsec_status & CXL_STATUS_SECOND_PORT)
@@ -1134,6 +1160,8 @@
 	if ((rc = cxl_vsec_looks_ok(adapter, dev)))
 	        return rc;
 
+	cxl_fixup_malformed_tlp(adapter, dev);
+
 	if ((rc = setup_cxl_bars(dev)))
 		return rc;
 
diff --git a/drivers/mmc/card/mmc_test.c b/drivers/mmc/card/mmc_test.c
index b78cf5d..7fc9174 100644
--- a/drivers/mmc/card/mmc_test.c
+++ b/drivers/mmc/card/mmc_test.c
@@ -2263,15 +2263,12 @@
 /*
  * eMMC hardware reset.
  */
-static int mmc_test_hw_reset(struct mmc_test_card *test)
+static int mmc_test_reset(struct mmc_test_card *test)
 {
 	struct mmc_card *card = test->card;
 	struct mmc_host *host = card->host;
 	int err;
 
-	if (!mmc_card_mmc(card) || !mmc_can_reset(card))
-		return RESULT_UNSUP_CARD;
-
 	err = mmc_hw_reset(host);
 	if (!err)
 		return RESULT_OK;
@@ -2605,8 +2602,8 @@
 	},
 
 	{
-		.name = "eMMC hardware reset",
-		.run = mmc_test_hw_reset,
+		.name = "Reset test",
+		.run = mmc_test_reset,
 	},
 };
 
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index e726903..f6cd995 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -1924,7 +1924,6 @@
 static int mmc_reset(struct mmc_host *host)
 {
 	struct mmc_card *card = host->card;
-	u32 status;
 
 	if (!(host->caps & MMC_CAP_HW_RESET) || !host->ops->hw_reset)
 		return -EOPNOTSUPP;
@@ -1937,12 +1936,6 @@
 
 	host->ops->hw_reset(host);
 
-	/* If the reset has happened, then a status command will fail */
-	if (!mmc_send_status(card, &status)) {
-		mmc_host_clk_release(host);
-		return -ENOSYS;
-	}
-
 	/* Set initial state and call mmc_set_ios */
 	mmc_set_initial_state(host);
 	mmc_host_clk_release(host);
diff --git a/drivers/net/can/sja1000/peak_pci.c b/drivers/net/can/sja1000/peak_pci.c
index e5fac36..131026f 100644
--- a/drivers/net/can/sja1000/peak_pci.c
+++ b/drivers/net/can/sja1000/peak_pci.c
@@ -87,6 +87,7 @@
 	{PEAK_PCI_VENDOR_ID, PEAK_PC_104P_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,},
 	{PEAK_PCI_VENDOR_ID, PEAK_PCI_104E_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,},
 	{PEAK_PCI_VENDOR_ID, PEAK_CPCI_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,},
+	{PEAK_PCI_VENDOR_ID, PEAK_PCIE_OEM_ID, PCI_ANY_ID, PCI_ANY_ID,},
 #ifdef CONFIG_CAN_PEAK_PCIEC
 	{PEAK_PCI_VENDOR_ID, PEAK_PCIEC_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,},
 	{PEAK_PCI_VENDOR_ID, PEAK_PCIEC34_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,},
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-debugfs.c b/drivers/net/ethernet/amd/xgbe/xgbe-debugfs.c
index 2c063b6..96f485a 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-debugfs.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-debugfs.c
@@ -327,9 +327,13 @@
 	pdata->debugfs_xpcs_reg = 0;
 
 	buf = kasprintf(GFP_KERNEL, "amd-xgbe-%s", pdata->netdev->name);
+	if (!buf)
+		return;
+
 	pdata->xgbe_debugfs = debugfs_create_dir(buf, NULL);
 	if (!pdata->xgbe_debugfs) {
 		netdev_err(pdata->netdev, "debugfs_create_dir failed\n");
+		kfree(buf);
 		return;
 	}
 
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
index aeb7ce6..be628bd 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
@@ -3351,6 +3351,13 @@
 			udp_rss_requested = 0;
 		else
 			return -EINVAL;
+
+		if (CHIP_IS_E1x(bp) && udp_rss_requested) {
+			DP(BNX2X_MSG_ETHTOOL,
+			   "57710, 57711 boards don't support RSS according to UDP 4-tuple\n");
+			return -EINVAL;
+		}
+
 		if ((info->flow_type == UDP_V4_FLOW) &&
 		    (bp->rss_conf_obj.udp_rss_v4 != udp_rss_requested)) {
 			bp->rss_conf_obj.udp_rss_v4 = udp_rss_requested;
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
index 3bc701e..1805541 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -1683,6 +1683,24 @@
 	bcmgenet_intrl2_1_writel(priv, 0, INTRL2_CPU_MASK_CLEAR);
 }
 
+static void bcmgenet_link_intr_enable(struct bcmgenet_priv *priv)
+{
+	u32 int0_enable = 0;
+
+	/* Monitor cable plug/unplugged event for internal PHY, external PHY
+	 * and MoCA PHY
+	 */
+	if (priv->internal_phy) {
+		int0_enable |= UMAC_IRQ_LINK_EVENT;
+	} else if (priv->ext_phy) {
+		int0_enable |= UMAC_IRQ_LINK_EVENT;
+	} else if (priv->phy_interface == PHY_INTERFACE_MODE_MOCA) {
+		if (priv->hw_params->flags & GENET_HAS_MOCA_LINK_DET)
+			int0_enable |= UMAC_IRQ_LINK_EVENT;
+	}
+	bcmgenet_intrl2_0_writel(priv, int0_enable, INTRL2_CPU_MASK_CLEAR);
+}
+
 static int init_umac(struct bcmgenet_priv *priv)
 {
 	struct device *kdev = &priv->pdev->dev;
@@ -1723,15 +1741,8 @@
 	/* Enable Tx default queue 16 interrupts */
 	int0_enable |= UMAC_IRQ_TXDMA_DONE;
 
-	/* Monitor cable plug/unplugged event for internal PHY */
-	if (priv->internal_phy) {
-		int0_enable |= UMAC_IRQ_LINK_EVENT;
-	} else if (priv->ext_phy) {
-		int0_enable |= UMAC_IRQ_LINK_EVENT;
-	} else if (priv->phy_interface == PHY_INTERFACE_MODE_MOCA) {
-		if (priv->hw_params->flags & GENET_HAS_MOCA_LINK_DET)
-			int0_enable |= UMAC_IRQ_LINK_EVENT;
-
+	/* Configure backpressure vectors for MoCA */
+	if (priv->phy_interface == PHY_INTERFACE_MODE_MOCA) {
 		reg = bcmgenet_bp_mc_get(priv);
 		reg |= BIT(priv->hw_params->bp_in_en_shift);
 
@@ -2645,6 +2656,9 @@
 
 	netif_tx_start_all_queues(dev);
 
+	/* Monitor link interrupts now */
+	bcmgenet_link_intr_enable(priv);
+
 	phy_start(priv->phydev);
 }
 
diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h
index 8215409..d463563 100644
--- a/drivers/net/ethernet/emulex/benet/be.h
+++ b/drivers/net/ethernet/emulex/benet/be.h
@@ -592,6 +592,7 @@
 	int be_get_temp_freq;
 	struct be_hwmon hwmon_info;
 	u8 pf_number;
+	u8 pci_func_num;
 	struct rss_info rss_info;
 	/* Filters for packets that need to be sent to BMC */
 	u32 bmc_filt_mask;
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index eb32391..1795c93 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -851,8 +851,10 @@
 		return status;
 
 	dest_wrb = be_cmd_copy(adapter, wrb);
-	if (!dest_wrb)
-		return -EBUSY;
+	if (!dest_wrb) {
+		status = -EBUSY;
+		goto unlock;
+	}
 
 	if (use_mcc(adapter))
 		status = be_mcc_notify_wait(adapter);
@@ -862,6 +864,7 @@
 	if (!status)
 		memcpy(wrb, dest_wrb, sizeof(*wrb));
 
+unlock:
 	be_cmd_unlock(adapter);
 	return status;
 }
@@ -1984,6 +1987,8 @@
 			 be_if_cap_flags(adapter));
 	}
 	flags &= be_if_cap_flags(adapter);
+	if (!flags)
+		return -ENOTSUPP;
 
 	return __be_cmd_rx_filter(adapter, flags, value);
 }
@@ -2887,6 +2892,7 @@
 	if (!status) {
 		attribs = attribs_cmd.va + sizeof(struct be_cmd_resp_hdr);
 		adapter->hba_port_num = attribs->hba_attribs.phy_port;
+		adapter->pci_func_num = attribs->pci_func_num;
 		serial_num = attribs->hba_attribs.controller_serial_number;
 		for (i = 0; i < CNTL_SERIAL_NUM_WORDS; i++)
 			adapter->serial_num[i] = le32_to_cpu(serial_num[i]) &
@@ -3709,7 +3715,6 @@
 			status = -EINVAL;
 			goto err;
 		}
-
 		adapter->pf_number = desc->pf_num;
 		be_copy_nic_desc(res, desc);
 	}
@@ -3721,7 +3726,10 @@
 	return status;
 }
 
-/* Will use MBOX only if MCCQ has not been created */
+/* Will use MBOX only if MCCQ has not been created
+ * non-zero domain => a PF is querying this on behalf of a VF
+ * zero domain => a PF or a VF is querying this for itself
+ */
 int be_cmd_get_profile_config(struct be_adapter *adapter,
 			      struct be_resources *res, u8 query, u8 domain)
 {
@@ -3748,10 +3756,15 @@
 			       OPCODE_COMMON_GET_PROFILE_CONFIG,
 			       cmd.size, &wrb, &cmd);
 
-	req->hdr.domain = domain;
 	if (!lancer_chip(adapter))
 		req->hdr.version = 1;
 	req->type = ACTIVE_PROFILE_TYPE;
+	/* When a function is querying profile information relating to
+	 * itself hdr.pf_number must be set to it's pci_func_num + 1
+	 */
+	req->hdr.domain = domain;
+	if (domain == 0)
+		req->hdr.pf_num = adapter->pci_func_num + 1;
 
 	/* When QUERY_MODIFIABLE_FIELDS_TYPE bit is set, cmd returns the
 	 * descriptors with all bits set to "1" for the fields which can be
@@ -3921,12 +3934,16 @@
 			vf_if_cap_flags &= ~(BE_IF_FLAGS_RSS |
 					     BE_IF_FLAGS_DEFQ_RSS);
 		}
-
-		nic_vft->cap_flags = cpu_to_le32(vf_if_cap_flags);
 	} else {
 		num_vf_qs = 1;
 	}
 
+	if (res_mod.vf_if_cap_flags & BE_IF_FLAGS_VLAN_PROMISCUOUS) {
+		nic_vft->flags |= BIT(IF_CAPS_FLAGS_VALID_SHIFT);
+		vf_if_cap_flags &= ~BE_IF_FLAGS_VLAN_PROMISCUOUS;
+	}
+
+	nic_vft->cap_flags = cpu_to_le32(vf_if_cap_flags);
 	nic_vft->rq_count = cpu_to_le16(num_vf_qs);
 	nic_vft->txq_count = cpu_to_le16(num_vf_qs);
 	nic_vft->rssq_count = cpu_to_le16(num_vf_qs);
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.h b/drivers/net/ethernet/emulex/benet/be_cmds.h
index 7d178bd..91155ea 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.h
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.h
@@ -289,7 +289,9 @@
 	u32 timeout;		/* dword 1 */
 	u32 request_length;	/* dword 2 */
 	u8 version;		/* dword 3 */
-	u8 rsvd[3];		/* dword 3 */
+	u8 rsvd1;		/* dword 3 */
+	u8 pf_num;		/* dword 3 */
+	u8 rsvd2;		/* dword 3 */
 };
 
 #define RESP_HDR_INFO_OPCODE_SHIFT	0	/* bits 0 - 7 */
@@ -1652,7 +1654,11 @@
 
 struct mgmt_controller_attrib {
 	struct mgmt_hba_attribs hba_attribs;
-	u32 rsvd0[10];
+	u32 rsvd0[2];
+	u16 rsvd1;
+	u8 pci_func_num;
+	u8 rsvd2;
+	u32 rsvd3[7];
 } __packed;
 
 struct be_cmd_req_cntl_attribs {
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 7bf51a1..eb48a97 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -1123,11 +1123,12 @@
 					   struct sk_buff *skb,
 					   struct be_wrb_params *wrb_params)
 {
-	/* Lancer, SH-R ASICs have a bug wherein Packets that are 32 bytes or
-	 * less may cause a transmit stall on that port. So the work-around is
-	 * to pad short packets (<= 32 bytes) to a 36-byte length.
+	/* Lancer, SH and BE3 in SRIOV mode have a bug wherein
+	 * packets that are 32b or less may cause a transmit stall
+	 * on that port. The workaround is to pad such packets
+	 * (len <= 32 bytes) to a minimum length of 36b.
 	 */
-	if (unlikely(!BEx_chip(adapter) && skb->len <= 32)) {
+	if (skb->len <= 32) {
 		if (skb_put_padto(skb, 36))
 			return NULL;
 	}
@@ -4205,10 +4206,6 @@
 	int status, level;
 	u16 profile_id;
 
-	status = be_cmd_get_cntl_attributes(adapter);
-	if (status)
-		return status;
-
 	status = be_cmd_query_fw_cfg(adapter);
 	if (status)
 		return status;
@@ -4407,6 +4404,11 @@
 	if (!lancer_chip(adapter))
 		be_cmd_req_native_mode(adapter);
 
+	/* Need to invoke this cmd first to get the PCI Function Number */
+	status = be_cmd_get_cntl_attributes(adapter);
+	if (status)
+		return status;
+
 	if (!BE2_chip(adapter) && be_physfn(adapter))
 		be_alloc_sriov_res(adapter);
 
@@ -4999,7 +5001,15 @@
 		return false;
 	}
 
-	return (fhdr->asic_type_rev >= adapter->asic_rev);
+	/* In BE3 FW images the "asic_type_rev" field doesn't track the
+	 * asic_rev of the chips it is compatible with.
+	 * When asic_type_rev is 0 the image is compatible only with
+	 * pre-BE3-R chips (asic_rev < 0x10)
+	 */
+	if (BEx_chip(adapter) && fhdr->asic_type_rev == 0)
+		return adapter->asic_rev < 0x10;
+	else
+		return (fhdr->asic_type_rev >= adapter->asic_rev);
 }
 
 static int be_fw_download(struct be_adapter *adapter, const struct firmware* fw)
diff --git a/drivers/net/ethernet/freescale/fsl_pq_mdio.c b/drivers/net/ethernet/freescale/fsl_pq_mdio.c
index 3c40f6b..55c3623 100644
--- a/drivers/net/ethernet/freescale/fsl_pq_mdio.c
+++ b/drivers/net/ethernet/freescale/fsl_pq_mdio.c
@@ -198,11 +198,13 @@
 
 #if defined(CONFIG_GIANFAR) || defined(CONFIG_GIANFAR_MODULE)
 /*
+ * Return the TBIPA address, starting from the address
+ * of the mapped GFAR MDIO registers (struct gfar)
  * This is mildly evil, but so is our hardware for doing this.
  * Also, we have to cast back to struct gfar because of
  * definition weirdness done in gianfar.h.
  */
-static uint32_t __iomem *get_gfar_tbipa(void __iomem *p)
+static uint32_t __iomem *get_gfar_tbipa_from_mdio(void __iomem *p)
 {
 	struct gfar __iomem *enet_regs = p;
 
@@ -210,6 +212,15 @@
 }
 
 /*
+ * Return the TBIPA address, starting from the address
+ * of the mapped GFAR MII registers (gfar_mii_regs[] within struct gfar)
+ */
+static uint32_t __iomem *get_gfar_tbipa_from_mii(void __iomem *p)
+{
+	return get_gfar_tbipa_from_mdio(container_of(p, struct gfar, gfar_mii_regs));
+}
+
+/*
  * Return the TBIPAR address for an eTSEC2 node
  */
 static uint32_t __iomem *get_etsec_tbipa(void __iomem *p)
@@ -220,11 +231,12 @@
 
 #if defined(CONFIG_UCC_GETH) || defined(CONFIG_UCC_GETH_MODULE)
 /*
- * Return the TBIPAR address for a QE MDIO node
+ * Return the TBIPAR address for a QE MDIO node, starting from the address
+ * of the mapped MII registers (struct fsl_pq_mii)
  */
 static uint32_t __iomem *get_ucc_tbipa(void __iomem *p)
 {
-	struct fsl_pq_mdio __iomem *mdio = p;
+	struct fsl_pq_mdio __iomem *mdio = container_of(p, struct fsl_pq_mdio, mii);
 
 	return &mdio->utbipar;
 }
@@ -300,14 +312,14 @@
 		.compatible = "fsl,gianfar-tbi",
 		.data = &(struct fsl_pq_mdio_data) {
 			.mii_offset = 0,
-			.get_tbipa = get_gfar_tbipa,
+			.get_tbipa = get_gfar_tbipa_from_mii,
 		},
 	},
 	{
 		.compatible = "fsl,gianfar-mdio",
 		.data = &(struct fsl_pq_mdio_data) {
 			.mii_offset = 0,
-			.get_tbipa = get_gfar_tbipa,
+			.get_tbipa = get_gfar_tbipa_from_mii,
 		},
 	},
 	{
@@ -315,7 +327,7 @@
 		.compatible = "gianfar",
 		.data = &(struct fsl_pq_mdio_data) {
 			.mii_offset = offsetof(struct fsl_pq_mdio, mii),
-			.get_tbipa = get_gfar_tbipa,
+			.get_tbipa = get_gfar_tbipa_from_mdio,
 		},
 	},
 	{
@@ -445,6 +457,16 @@
 
 			tbipa = data->get_tbipa(priv->map);
 
+			/*
+			 * Add consistency check to make sure TBI is contained
+			 * within the mapped range (not because we would get a
+			 * segfault, rather to catch bugs in computing TBI
+			 * address). Print error message but continue anyway.
+			 */
+			if ((void *)tbipa > priv->map + resource_size(&res) - 4)
+				dev_err(&pdev->dev, "invalid register map (should be at least 0x%04x to contain TBI address)\n",
+					((void *)tbipa - priv->map) + 4);
+
 			iowrite32be(be32_to_cpup(prop), tbipa);
 		}
 	}
diff --git a/drivers/net/ethernet/intel/i40e/i40e_adminq.c b/drivers/net/ethernet/intel/i40e/i40e_adminq.c
index 62488a6..c0e943a 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_adminq.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_adminq.c
@@ -386,7 +386,6 @@
 
 	hw->aq.asq.next_to_use = 0;
 	hw->aq.asq.next_to_clean = 0;
-	hw->aq.asq.count = hw->aq.num_asq_entries;
 
 	/* allocate the ring memory */
 	ret_code = i40e_alloc_adminq_asq_ring(hw);
@@ -404,6 +403,7 @@
 		goto init_adminq_free_rings;
 
 	/* success! */
+	hw->aq.asq.count = hw->aq.num_asq_entries;
 	goto init_adminq_exit;
 
 init_adminq_free_rings:
@@ -445,7 +445,6 @@
 
 	hw->aq.arq.next_to_use = 0;
 	hw->aq.arq.next_to_clean = 0;
-	hw->aq.arq.count = hw->aq.num_arq_entries;
 
 	/* allocate the ring memory */
 	ret_code = i40e_alloc_adminq_arq_ring(hw);
@@ -463,6 +462,7 @@
 		goto init_adminq_free_rings;
 
 	/* success! */
+	hw->aq.arq.count = hw->aq.num_arq_entries;
 	goto init_adminq_exit;
 
 init_adminq_free_rings:
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 2fdf978..dd44faf 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -8389,6 +8389,7 @@
 
 	netdev->hw_enc_features |= NETIF_F_IP_CSUM	 |
 				  NETIF_F_GSO_UDP_TUNNEL |
+				  NETIF_F_GSO_GRE	 |
 				  NETIF_F_TSO;
 
 	netdev->features = NETIF_F_SG		       |
@@ -8396,6 +8397,7 @@
 			   NETIF_F_SCTP_CSUM	       |
 			   NETIF_F_HIGHDMA	       |
 			   NETIF_F_GSO_UDP_TUNNEL      |
+			   NETIF_F_GSO_GRE	       |
 			   NETIF_F_HW_VLAN_CTAG_TX     |
 			   NETIF_F_HW_VLAN_CTAG_RX     |
 			   NETIF_F_HW_VLAN_CTAG_FILTER |
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_adminq.c b/drivers/net/ethernet/intel/i40evf/i40e_adminq.c
index 929d471..a23ebfd 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_adminq.c
+++ b/drivers/net/ethernet/intel/i40evf/i40e_adminq.c
@@ -373,7 +373,6 @@
 
 	hw->aq.asq.next_to_use = 0;
 	hw->aq.asq.next_to_clean = 0;
-	hw->aq.asq.count = hw->aq.num_asq_entries;
 
 	/* allocate the ring memory */
 	ret_code = i40e_alloc_adminq_asq_ring(hw);
@@ -391,6 +390,7 @@
 		goto init_adminq_free_rings;
 
 	/* success! */
+	hw->aq.asq.count = hw->aq.num_asq_entries;
 	goto init_adminq_exit;
 
 init_adminq_free_rings:
@@ -432,7 +432,6 @@
 
 	hw->aq.arq.next_to_use = 0;
 	hw->aq.arq.next_to_clean = 0;
-	hw->aq.arq.count = hw->aq.num_arq_entries;
 
 	/* allocate the ring memory */
 	ret_code = i40e_alloc_adminq_arq_ring(hw);
@@ -450,6 +449,7 @@
 		goto init_adminq_free_rings;
 
 	/* success! */
+	hw->aq.arq.count = hw->aq.num_arq_entries;
 	goto init_adminq_exit;
 
 init_adminq_free_rings:
diff --git a/drivers/net/ethernet/mellanox/mlx4/eq.c b/drivers/net/ethernet/mellanox/mlx4/eq.c
index 8e81e53..c344884 100644
--- a/drivers/net/ethernet/mellanox/mlx4/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx4/eq.c
@@ -1364,6 +1364,10 @@
 	 * and performing a NOP command
 	 */
 	for(i = 0; !err && (i < dev->caps.num_comp_vectors); ++i) {
+		/* Make sure request_irq was called */
+		if (!priv->eq_table.eq[i].have_irq)
+			continue;
+
 		/* Temporary use polling for command completions */
 		mlx4_cmd_use_polling(dev);
 
diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index 006757f..cc3a989 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -2669,14 +2669,11 @@
 
 	if (msi_x) {
 		int nreq = dev->caps.num_ports * num_online_cpus() + 1;
-		bool shared_ports = false;
 
 		nreq = min_t(int, dev->caps.num_eqs - dev->caps.reserved_eqs,
 			     nreq);
-		if (nreq > MAX_MSIX) {
+		if (nreq > MAX_MSIX)
 			nreq = MAX_MSIX;
-			shared_ports = true;
-		}
 
 		entries = kcalloc(nreq, sizeof *entries, GFP_KERNEL);
 		if (!entries)
@@ -2699,9 +2696,6 @@
 		bitmap_zero(priv->eq_table.eq[MLX4_EQ_ASYNC].actv_ports.ports,
 			    dev->caps.num_ports);
 
-		if (MLX4_IS_LEGACY_EQ_MODE(dev->caps))
-			shared_ports = true;
-
 		for (i = 0; i < dev->caps.num_comp_vectors + 1; i++) {
 			if (i == MLX4_EQ_ASYNC)
 				continue;
@@ -2709,7 +2703,7 @@
 			priv->eq_table.eq[i].irq =
 				entries[i + 1 - !!(i > MLX4_EQ_ASYNC)].vector;
 
-			if (shared_ports) {
+			if (MLX4_IS_LEGACY_EQ_MODE(dev->caps)) {
 				bitmap_fill(priv->eq_table.eq[i].actv_ports.ports,
 					    dev->caps.num_ports);
 				/* We don't set affinity hint when there
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_flow_table.c b/drivers/net/ethernet/mellanox/mlx5/core/en_flow_table.c
index e71563c..22d603f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_flow_table.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_flow_table.c
@@ -598,6 +598,8 @@
 		return;
 
 	priv->vlan.filter_disabled = false;
+	if (priv->netdev->flags & IFF_PROMISC)
+		return;
 	mlx5e_del_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_ANY_VID, 0);
 }
 
@@ -607,6 +609,8 @@
 		return;
 
 	priv->vlan.filter_disabled = true;
+	if (priv->netdev->flags & IFF_PROMISC)
+		return;
 	mlx5e_add_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_ANY_VID, 0);
 }
 
@@ -717,8 +721,12 @@
 	bool enable_broadcast  = !ea->broadcast_enabled &&  broadcast_enabled;
 	bool disable_broadcast =  ea->broadcast_enabled && !broadcast_enabled;
 
-	if (enable_promisc)
+	if (enable_promisc) {
 		mlx5e_add_eth_addr_rule(priv, &ea->promisc, MLX5E_PROMISC);
+		if (!priv->vlan.filter_disabled)
+			mlx5e_add_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_ANY_VID,
+					    0);
+	}
 	if (enable_allmulti)
 		mlx5e_add_eth_addr_rule(priv, &ea->allmulti, MLX5E_ALLMULTI);
 	if (enable_broadcast)
@@ -730,8 +738,12 @@
 		mlx5e_del_eth_addr_from_flow_table(priv, &ea->broadcast);
 	if (disable_allmulti)
 		mlx5e_del_eth_addr_from_flow_table(priv, &ea->allmulti);
-	if (disable_promisc)
+	if (disable_promisc) {
+		if (!priv->vlan.filter_disabled)
+			mlx5e_del_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_ANY_VID,
+					    0);
 		mlx5e_del_eth_addr_from_flow_table(priv, &ea->promisc);
+	}
 
 	ea->promisc_enabled   = promisc_enabled;
 	ea->allmulti_enabled  = allmulti_enabled;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/port.c b/drivers/net/ethernet/mellanox/mlx5/core/port.c
index 821caaa..3b9480f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/port.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/port.c
@@ -311,7 +311,7 @@
 	int err;
 
 	memset(in, 0, sizeof(in));
-	MLX5_SET(ptys_reg, in, local_port, local_port);
+	MLX5_SET(pvlc_reg, in, local_port, local_port);
 
 	err = mlx5_core_access_reg(dev, in, sizeof(in), pvlc,
 				   pvlc_size, MLX5_REG_PVLC, 0, 0);
diff --git a/drivers/net/ethernet/mellanox/mlxsw/core.c b/drivers/net/ethernet/mellanox/mlxsw/core.c
index dbcaf5d..28c19cc 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/core.c
@@ -374,26 +374,31 @@
 	int err;
 	int ret;
 
+	mlxsw_core->emad.trans_active = true;
+
 	err = mlxsw_core_skb_transmit(mlxsw_core->driver_priv, skb, tx_info);
 	if (err) {
 		dev_err(mlxsw_core->bus_info->dev, "Failed to transmit EMAD (tid=%llx)\n",
 			mlxsw_core->emad.tid);
 		dev_kfree_skb(skb);
-		return err;
+		goto trans_inactive_out;
 	}
 
-	mlxsw_core->emad.trans_active = true;
 	ret = wait_event_timeout(mlxsw_core->emad.wait,
 				 !(mlxsw_core->emad.trans_active),
 				 msecs_to_jiffies(MLXSW_EMAD_TIMEOUT_MS));
 	if (!ret) {
 		dev_warn(mlxsw_core->bus_info->dev, "EMAD timed-out (tid=%llx)\n",
 			 mlxsw_core->emad.tid);
-		mlxsw_core->emad.trans_active = false;
-		return -EIO;
+		err = -EIO;
+		goto trans_inactive_out;
 	}
 
 	return 0;
+
+trans_inactive_out:
+	mlxsw_core->emad.trans_active = false;
+	return err;
 }
 
 static int mlxsw_emad_process_status(struct mlxsw_core *mlxsw_core,
diff --git a/drivers/net/ethernet/mellanox/mlxsw/item.h b/drivers/net/ethernet/mellanox/mlxsw/item.h
index ffd55d0..36fb1ce 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/item.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/item.h
@@ -187,6 +187,7 @@
 {
 	u16 max_index, be_index;
 	u16 offset;		/* byte offset inside the array */
+	u8 in_byte_index;
 
 	BUG_ON(index && !item->element_size);
 	if (item->offset % sizeof(u32) != 0 ||
@@ -199,7 +200,8 @@
 	max_index = (item->size.bytes << 3) / item->element_size - 1;
 	be_index = max_index - index;
 	offset = be_index * item->element_size >> 3;
-	*shift = index % (BITS_PER_BYTE / item->element_size) << 1;
+	in_byte_index  = index % (BITS_PER_BYTE / item->element_size);
+	*shift = in_byte_index * item->element_size;
 
 	return item->offset + offset;
 }
diff --git a/drivers/net/ethernet/mellanox/mlxsw/pci.c b/drivers/net/ethernet/mellanox/mlxsw/pci.c
index 462cea3..cef866c 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/pci.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/pci.c
@@ -1582,11 +1582,11 @@
 
 	if (in_mbox)
 		memcpy(mlxsw_pci->cmd.in_mbox.buf, in_mbox, in_mbox_size);
-	mlxsw_pci_write32(mlxsw_pci, CIR_IN_PARAM_HI, in_mapaddr >> 32);
-	mlxsw_pci_write32(mlxsw_pci, CIR_IN_PARAM_LO, in_mapaddr);
+	mlxsw_pci_write32(mlxsw_pci, CIR_IN_PARAM_HI, upper_32_bits(in_mapaddr));
+	mlxsw_pci_write32(mlxsw_pci, CIR_IN_PARAM_LO, lower_32_bits(in_mapaddr));
 
-	mlxsw_pci_write32(mlxsw_pci, CIR_OUT_PARAM_HI, out_mapaddr >> 32);
-	mlxsw_pci_write32(mlxsw_pci, CIR_OUT_PARAM_LO, out_mapaddr);
+	mlxsw_pci_write32(mlxsw_pci, CIR_OUT_PARAM_HI, upper_32_bits(out_mapaddr));
+	mlxsw_pci_write32(mlxsw_pci, CIR_OUT_PARAM_LO, lower_32_bits(out_mapaddr));
 
 	mlxsw_pci_write32(mlxsw_pci, CIR_IN_MODIFIER, in_mod);
 	mlxsw_pci_write32(mlxsw_pci, CIR_TOKEN, 0);
diff --git a/drivers/net/ethernet/mellanox/mlxsw/switchx2.c b/drivers/net/ethernet/mellanox/mlxsw/switchx2.c
index 3e52ee9..62cbbd1 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/switchx2.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/switchx2.c
@@ -1069,9 +1069,9 @@
 	return 0;
 
 err_register_netdev:
-err_port_admin_status_set:
 err_port_mac_learning_mode_set:
 err_port_stp_state_set:
+err_port_admin_status_set:
 err_port_mtu_set:
 err_port_speed_set:
 err_port_swid_set:
diff --git a/drivers/net/ethernet/nxp/lpc_eth.c b/drivers/net/ethernet/nxp/lpc_eth.c
index 66fd868..b159ef8 100644
--- a/drivers/net/ethernet/nxp/lpc_eth.c
+++ b/drivers/net/ethernet/nxp/lpc_eth.c
@@ -476,13 +476,12 @@
 	mac[5] = tmp >> 8;
 }
 
-static void __lpc_eth_clock_enable(struct netdata_local *pldat,
-				   bool enable)
+static void __lpc_eth_clock_enable(struct netdata_local *pldat, bool enable)
 {
 	if (enable)
-		clk_enable(pldat->clk);
+		clk_prepare_enable(pldat->clk);
 	else
-		clk_disable(pldat->clk);
+		clk_disable_unprepare(pldat->clk);
 }
 
 static void __lpc_params_setup(struct netdata_local *pldat)
@@ -1494,7 +1493,7 @@
 err_out_iounmap:
 	iounmap(pldat->net_base);
 err_out_disable_clocks:
-	clk_disable(pldat->clk);
+	clk_disable_unprepare(pldat->clk);
 	clk_put(pldat->clk);
 err_out_free_dev:
 	free_netdev(ndev);
@@ -1519,7 +1518,7 @@
 	iounmap(pldat->net_base);
 	mdiobus_unregister(pldat->mii_bus);
 	mdiobus_free(pldat->mii_bus);
-	clk_disable(pldat->clk);
+	clk_disable_unprepare(pldat->clk);
 	clk_put(pldat->clk);
 	free_netdev(ndev);
 
@@ -1540,7 +1539,7 @@
 		if (netif_running(ndev)) {
 			netif_device_detach(ndev);
 			__lpc_eth_shutdown(pldat);
-			clk_disable(pldat->clk);
+			clk_disable_unprepare(pldat->clk);
 
 			/*
 			 * Reset again now clock is disable to be sure
diff --git a/drivers/net/ethernet/via/via-rhine.c b/drivers/net/ethernet/via/via-rhine.c
index a832637..2b7550c 100644
--- a/drivers/net/ethernet/via/via-rhine.c
+++ b/drivers/net/ethernet/via/via-rhine.c
@@ -2134,10 +2134,11 @@
 			}
 
 			skb_put(skb, pkt_len);
-			skb->protocol = eth_type_trans(skb, dev);
 
 			rhine_rx_vlan_tag(skb, desc, data_size);
 
+			skb->protocol = eth_type_trans(skb, dev);
+
 			netif_receive_skb(skb);
 
 			u64_stats_update_begin(&rp->rx_stats.syncp);
diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c
index 8f5c02e..cde29f8 100644
--- a/drivers/net/geneve.c
+++ b/drivers/net/geneve.c
@@ -870,14 +870,14 @@
 	__be16 dst_port = htons(GENEVE_UDP_PORT);
 	__u8 ttl = 0, tos = 0;
 	bool metadata = false;
-	__be32 rem_addr;
-	__u32 vni;
+	__be32 rem_addr = 0;
+	__u32 vni = 0;
 
-	if (!data[IFLA_GENEVE_ID] || !data[IFLA_GENEVE_REMOTE])
-		return -EINVAL;
+	if (data[IFLA_GENEVE_ID])
+		vni = nla_get_u32(data[IFLA_GENEVE_ID]);
 
-	vni = nla_get_u32(data[IFLA_GENEVE_ID]);
-	rem_addr = nla_get_in_addr(data[IFLA_GENEVE_REMOTE]);
+	if (data[IFLA_GENEVE_REMOTE])
+		rem_addr = nla_get_in_addr(data[IFLA_GENEVE_REMOTE]);
 
 	if (data[IFLA_GENEVE_TTL])
 		ttl = nla_get_u8(data[IFLA_GENEVE_TTL]);
diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index c5ad98a..11e3975 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -168,8 +168,6 @@
 	  busses. It is required by the Octeon and ThunderX ethernet device
 	  drivers.
 
-	  If in doubt, say Y.
-
 config MDIO_SUN4I
 	tristate "Allwinner sun4i MDIO interface support"
 	depends on ARCH_SUNXI
diff --git a/drivers/net/ppp/pppoe.c b/drivers/net/ppp/pppoe.c
index 3837ae3..2ed7506 100644
--- a/drivers/net/ppp/pppoe.c
+++ b/drivers/net/ppp/pppoe.c
@@ -313,7 +313,6 @@
 			if (po->pppoe_dev == dev &&
 			    sk->sk_state & (PPPOX_CONNECTED | PPPOX_BOUND | PPPOX_ZOMBIE)) {
 				pppox_unbind_sock(sk);
-				sk->sk_state = PPPOX_ZOMBIE;
 				sk->sk_state_change(sk);
 				po->pppoe_dev = NULL;
 				dev_put(dev);
diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
index fbb9325d..e66805e 100644
--- a/drivers/net/usb/Kconfig
+++ b/drivers/net/usb/Kconfig
@@ -164,6 +164,7 @@
 	    * Aten UC210T
 	    * ASIX AX88172
 	    * Billionton Systems, USB2AR
+	    * Billionton Systems, GUSB2AM-1G-B
 	    * Buffalo LUA-U2-KTX
 	    * Corega FEther USB2-TX
 	    * D-Link DUB-E100
diff --git a/drivers/net/usb/asix_common.c b/drivers/net/usb/asix_common.c
index 75d6f26..079069a 100644
--- a/drivers/net/usb/asix_common.c
+++ b/drivers/net/usb/asix_common.c
@@ -91,8 +91,10 @@
 			}
 			rx->ax_skb = netdev_alloc_skb_ip_align(dev->net,
 							       rx->size);
-			if (!rx->ax_skb)
+			if (!rx->ax_skb) {
+				rx->size = 0;
 				return 0;
+			}
 		}
 
 		if (rx->size > dev->net->mtu + ETH_HLEN + VLAN_HLEN) {
diff --git a/drivers/net/usb/asix_devices.c b/drivers/net/usb/asix_devices.c
index 1173a24..5cabefc 100644
--- a/drivers/net/usb/asix_devices.c
+++ b/drivers/net/usb/asix_devices.c
@@ -959,6 +959,10 @@
 	USB_DEVICE (0x08dd, 0x90ff),
 	.driver_info =  (unsigned long) &ax8817x_info,
 }, {
+	// Billionton Systems, GUSB2AM-1G-B
+	USB_DEVICE(0x08dd, 0x0114),
+	.driver_info =  (unsigned long) &ax88178_info,
+}, {
 	// ATEN UC210T
 	USB_DEVICE (0x0557, 0x2009),
 	.driver_info =  (unsigned long) &ax8817x_info,
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index bbac1d3..afdc65f 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -2745,11 +2745,10 @@
 	struct vxlan_config conf;
 	int err;
 
-	if (!data[IFLA_VXLAN_ID])
-		return -EINVAL;
-
 	memset(&conf, 0, sizeof(conf));
-	conf.vni = nla_get_u32(data[IFLA_VXLAN_ID]);
+
+	if (data[IFLA_VXLAN_ID])
+		conf.vni = nla_get_u32(data[IFLA_VXLAN_ID]);
 
 	if (data[IFLA_VXLAN_GROUP]) {
 		conf.remote_ip.sin.sin_addr.s_addr = nla_get_in_addr(data[IFLA_VXLAN_GROUP]);
diff --git a/drivers/net/wireless/ath/ath10k/hw.h b/drivers/net/wireless/ath/ath10k/hw.h
index 23afcda..678d72af 100644
--- a/drivers/net/wireless/ath/ath10k/hw.h
+++ b/drivers/net/wireless/ath/ath10k/hw.h
@@ -337,7 +337,7 @@
 #define TARGET_10X_MAX_FRAG_ENTRIES		0
 
 /* 10.2 parameters */
-#define TARGET_10_2_DMA_BURST_SIZE		1
+#define TARGET_10_2_DMA_BURST_SIZE		0
 
 /* Target specific defines for WMI-TLV firmware */
 #define TARGET_TLV_NUM_VDEVS			4
@@ -391,7 +391,7 @@
 
 #define TARGET_10_4_TX_DBG_LOG_SIZE		1024
 #define TARGET_10_4_NUM_WDS_ENTRIES		32
-#define TARGET_10_4_DMA_BURST_SIZE		1
+#define TARGET_10_4_DMA_BURST_SIZE		0
 #define TARGET_10_4_MAC_AGGR_DELIM		0
 #define TARGET_10_4_RX_SKIP_DEFRAG_TIMEOUT_DUP_DETECTION_CHECK 1
 #define TARGET_10_4_VOW_CONFIG			0
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index 57f95f2..90eb750 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -880,6 +880,7 @@
 	hw->max_rate_tries = 10;
 	hw->sta_data_size = sizeof(struct ath_node);
 	hw->vif_data_size = sizeof(struct ath_vif);
+	hw->extra_tx_headroom = 4;
 
 	hw->wiphy->available_antennas_rx = BIT(ah->caps.max_rxchains) - 1;
 	hw->wiphy->available_antennas_tx = BIT(ah->caps.max_txchains) - 1;
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index 2849070..71d3e9a 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -120,6 +120,7 @@
 #ifdef CONFIG_B43_BCMA
 static const struct bcma_device_id b43_bcma_tbl[] = {
 	BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x11, BCMA_ANY_CLASS),
+	BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x15, BCMA_ANY_CLASS),
 	BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x17, BCMA_ANY_CLASS),
 	BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x18, BCMA_ANY_CLASS),
 	BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x1C, BCMA_ANY_CLASS),
diff --git a/drivers/net/wireless/iwlwifi/dvm/lib.c b/drivers/net/wireless/iwlwifi/dvm/lib.c
index ab45819..e18629a 100644
--- a/drivers/net/wireless/iwlwifi/dvm/lib.c
+++ b/drivers/net/wireless/iwlwifi/dvm/lib.c
@@ -1020,7 +1020,7 @@
 			u8 *pn = seq.ccmp.pn;
 
 			ieee80211_get_key_rx_seq(key, i, &seq);
-			aes_sc->pn = cpu_to_le64(
+			aes_sc[i].pn = cpu_to_le64(
 					(u64)pn[5] |
 					((u64)pn[4] << 8) |
 					((u64)pn[3] << 16) |
diff --git a/drivers/net/wireless/iwlwifi/iwl-7000.c b/drivers/net/wireless/iwlwifi/iwl-7000.c
index 6951aba..3fb327d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-7000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-7000.c
@@ -348,6 +348,6 @@
 };
 
 MODULE_FIRMWARE(IWL7260_MODULE_FIRMWARE(IWL7260_UCODE_API_OK));
-MODULE_FIRMWARE(IWL3160_MODULE_FIRMWARE(IWL3160_UCODE_API_OK));
+MODULE_FIRMWARE(IWL3160_MODULE_FIRMWARE(IWL7260_UCODE_API_OK));
 MODULE_FIRMWARE(IWL7265_MODULE_FIRMWARE(IWL7260_UCODE_API_OK));
 MODULE_FIRMWARE(IWL7265D_MODULE_FIRMWARE(IWL7260_UCODE_API_OK));
diff --git a/drivers/net/wireless/iwlwifi/mvm/d3.c b/drivers/net/wireless/iwlwifi/mvm/d3.c
index 04264e4..5761876 100644
--- a/drivers/net/wireless/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/iwlwifi/mvm/d3.c
@@ -274,18 +274,13 @@
 		break;
 	case WLAN_CIPHER_SUITE_CCMP:
 		if (sta) {
-			u8 *pn = seq.ccmp.pn;
+			u64 pn64;
 
 			aes_sc = data->rsc_tsc->all_tsc_rsc.aes.unicast_rsc;
 			aes_tx_sc = &data->rsc_tsc->all_tsc_rsc.aes.tsc;
 
-			ieee80211_get_key_tx_seq(key, &seq);
-			aes_tx_sc->pn = cpu_to_le64((u64)pn[5] |
-						    ((u64)pn[4] << 8) |
-						    ((u64)pn[3] << 16) |
-						    ((u64)pn[2] << 24) |
-						    ((u64)pn[1] << 32) |
-						    ((u64)pn[0] << 40));
+			pn64 = atomic64_read(&key->tx_pn);
+			aes_tx_sc->pn = cpu_to_le64(pn64);
 		} else {
 			aes_sc = data->rsc_tsc->all_tsc_rsc.aes.multicast_rsc;
 		}
@@ -298,12 +293,12 @@
 			u8 *pn = seq.ccmp.pn;
 
 			ieee80211_get_key_rx_seq(key, i, &seq);
-			aes_sc->pn = cpu_to_le64((u64)pn[5] |
-						 ((u64)pn[4] << 8) |
-						 ((u64)pn[3] << 16) |
-						 ((u64)pn[2] << 24) |
-						 ((u64)pn[1] << 32) |
-						 ((u64)pn[0] << 40));
+			aes_sc[i].pn = cpu_to_le64((u64)pn[5] |
+						   ((u64)pn[4] << 8) |
+						   ((u64)pn[3] << 16) |
+						   ((u64)pn[2] << 24) |
+						   ((u64)pn[1] << 32) |
+						   ((u64)pn[0] << 40));
 		}
 		data->use_rsc_tsc = true;
 		break;
@@ -1453,15 +1448,15 @@
 
 		switch (key->cipher) {
 		case WLAN_CIPHER_SUITE_CCMP:
-			iwl_mvm_aes_sc_to_seq(&sc->aes.tsc, &seq);
 			iwl_mvm_set_aes_rx_seq(sc->aes.unicast_rsc, key);
+			atomic64_set(&key->tx_pn, le64_to_cpu(sc->aes.tsc.pn));
 			break;
 		case WLAN_CIPHER_SUITE_TKIP:
 			iwl_mvm_tkip_sc_to_seq(&sc->tkip.tsc, &seq);
 			iwl_mvm_set_tkip_rx_seq(sc->tkip.unicast_rsc, key);
+			ieee80211_set_key_tx_seq(key, &seq);
 			break;
 		}
-		ieee80211_set_key_tx_seq(key, &seq);
 
 		/* that's it for this key */
 		return;
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw.c b/drivers/net/wireless/iwlwifi/mvm/fw.c
index 4a0ce83..5c7f7cc 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/iwlwifi/mvm/fw.c
@@ -703,7 +703,7 @@
 	 * abort after reading the nvm in case RF Kill is on, we will complete
 	 * the init seq later when RF kill will switch to off
 	 */
-	if (iwl_mvm_is_radio_killed(mvm)) {
+	if (iwl_mvm_is_radio_hw_killed(mvm)) {
 		IWL_DEBUG_RF_KILL(mvm,
 				  "jump over all phy activities due to RF kill\n");
 		iwl_remove_notification(&mvm->notif_wait, &calib_wait);
@@ -736,7 +736,7 @@
 	ret = iwl_wait_notification(&mvm->notif_wait, &calib_wait,
 			MVM_UCODE_CALIB_TIMEOUT);
 
-	if (ret && iwl_mvm_is_radio_killed(mvm)) {
+	if (ret && iwl_mvm_is_radio_hw_killed(mvm)) {
 		IWL_DEBUG_RF_KILL(mvm, "RFKILL while calibrating.\n");
 		ret = 1;
 	}
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index aa8c2b7..7c2944a 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -2388,6 +2388,7 @@
 		iwl_mvm_remove_time_event(mvm, mvmvif,
 					  &mvmvif->time_event_data);
 		RCU_INIT_POINTER(mvm->csa_vif, NULL);
+		mvmvif->csa_countdown = false;
 	}
 
 	if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index b95a07e..c754051 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -860,6 +860,11 @@
 	       test_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
 }
 
+static inline bool iwl_mvm_is_radio_hw_killed(struct iwl_mvm *mvm)
+{
+	return test_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
+}
+
 /* Must be called with rcu_read_lock() held and it can only be
  * released when mvmsta is not needed anymore.
  */
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index a37de3f..f0cb092 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -590,6 +590,7 @@
 	ieee80211_unregister_hw(mvm->hw);
 	iwl_mvm_leds_exit(mvm);
  out_free:
+	flush_delayed_work(&mvm->fw_dump_wk);
 	iwl_phy_db_free(mvm->phy_db);
 	kfree(mvm->scan_cmd);
 	if (!cfg->no_power_up_nic_in_init || !mvm->nvm_file_name)
diff --git a/drivers/net/wireless/iwlwifi/pcie/drv.c b/drivers/net/wireless/iwlwifi/pcie/drv.c
index b0825c4..644b58b 100644
--- a/drivers/net/wireless/iwlwifi/pcie/drv.c
+++ b/drivers/net/wireless/iwlwifi/pcie/drv.c
@@ -414,6 +414,11 @@
 	{IWL_PCI_DEVICE(0x095A, 0x5590, iwl7265_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x095B, 0x5290, iwl7265_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x095A, 0x5490, iwl7265_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x095A, 0x5F10, iwl7265_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x095B, 0x5212, iwl7265_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x095B, 0x520A, iwl7265_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x095A, 0x9000, iwl7265_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x095A, 0x9400, iwl7265_2ac_cfg)},
 
 /* 8000 Series */
 	{IWL_PCI_DEVICE(0x24F3, 0x0010, iwl8260_2ac_cfg)},
diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c
index 5932306..bf9afbf 100644
--- a/drivers/net/wireless/rt2x00/rt2800usb.c
+++ b/drivers/net/wireless/rt2x00/rt2800usb.c
@@ -1114,6 +1114,7 @@
 	{ USB_DEVICE(0x0db0, 0x871c) },
 	{ USB_DEVICE(0x0db0, 0x899a) },
 	/* Ovislink */
+	{ USB_DEVICE(0x1b75, 0x3070) },
 	{ USB_DEVICE(0x1b75, 0x3071) },
 	{ USB_DEVICE(0x1b75, 0x3072) },
 	{ USB_DEVICE(0x1b75, 0xa200) },
diff --git a/drivers/net/wireless/rtlwifi/pci.h b/drivers/net/wireless/rtlwifi/pci.h
index d4567d1..5da6703 100644
--- a/drivers/net/wireless/rtlwifi/pci.h
+++ b/drivers/net/wireless/rtlwifi/pci.h
@@ -247,6 +247,8 @@
 	/* MSI support */
 	bool msi_support;
 	bool using_msi;
+	/* interrupt clear before set */
+	bool int_clear;
 };
 
 struct mp_adapter {
diff --git a/drivers/net/wireless/rtlwifi/rtl8821ae/hw.c b/drivers/net/wireless/rtlwifi/rtl8821ae/hw.c
index b7f18e21..6e9418e 100644
--- a/drivers/net/wireless/rtlwifi/rtl8821ae/hw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8821ae/hw.c
@@ -2253,11 +2253,28 @@
 	}
 }
 
+static void rtl8821ae_clear_interrupt(struct ieee80211_hw *hw)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	u32 tmp = rtl_read_dword(rtlpriv, REG_HISR);
+
+	rtl_write_dword(rtlpriv, REG_HISR, tmp);
+
+	tmp = rtl_read_dword(rtlpriv, REG_HISRE);
+	rtl_write_dword(rtlpriv, REG_HISRE, tmp);
+
+	tmp = rtl_read_dword(rtlpriv, REG_HSISR);
+	rtl_write_dword(rtlpriv, REG_HSISR, tmp);
+}
+
 void rtl8821ae_enable_interrupt(struct ieee80211_hw *hw)
 {
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 
+	if (!rtlpci->int_clear)
+		rtl8821ae_clear_interrupt(hw);/*clear it here first*/
+
 	rtl_write_dword(rtlpriv, REG_HIMR, rtlpci->irq_mask[0] & 0xFFFFFFFF);
 	rtl_write_dword(rtlpriv, REG_HIMRE, rtlpci->irq_mask[1] & 0xFFFFFFFF);
 	rtlpci->irq_enabled = true;
diff --git a/drivers/net/wireless/rtlwifi/rtl8821ae/sw.c b/drivers/net/wireless/rtlwifi/rtl8821ae/sw.c
index a4988121..8ee141a 100644
--- a/drivers/net/wireless/rtlwifi/rtl8821ae/sw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8821ae/sw.c
@@ -96,6 +96,7 @@
 
 	rtl8821ae_bt_reg_init(hw);
 	rtlpci->msi_support = rtlpriv->cfg->mod_params->msi_support;
+	rtlpci->int_clear = rtlpriv->cfg->mod_params->int_clear;
 	rtlpriv->btcoexist.btc_ops = rtl_btc_get_ops_pointer();
 
 	rtlpriv->dm.dm_initialgain_enable = 1;
@@ -167,6 +168,7 @@
 	rtlpriv->psc.swctrl_lps = rtlpriv->cfg->mod_params->swctrl_lps;
 	rtlpriv->psc.fwctrl_lps = rtlpriv->cfg->mod_params->fwctrl_lps;
 	rtlpci->msi_support = rtlpriv->cfg->mod_params->msi_support;
+	rtlpci->msi_support = rtlpriv->cfg->mod_params->int_clear;
 	if (rtlpriv->cfg->mod_params->disable_watchdog)
 		pr_info("watchdog disabled\n");
 	rtlpriv->psc.reg_fwctrl_lps = 3;
@@ -308,6 +310,7 @@
 	.swctrl_lps = false,
 	.fwctrl_lps = true,
 	.msi_support = true,
+	.int_clear = true,
 	.debug = DBG_EMERG,
 	.disable_watchdog = 0,
 };
@@ -437,6 +440,7 @@
 module_param_named(msi, rtl8821ae_mod_params.msi_support, bool, 0444);
 module_param_named(disable_watchdog, rtl8821ae_mod_params.disable_watchdog,
 		   bool, 0444);
+module_param_named(int_clear, rtl8821ae_mod_params.int_clear, bool, 0444);
 MODULE_PARM_DESC(swenc, "Set to 1 for software crypto (default 0)\n");
 MODULE_PARM_DESC(ips, "Set to 0 to not use link power save (default 1)\n");
 MODULE_PARM_DESC(swlps, "Set to 1 to use SW control power save (default 0)\n");
@@ -444,6 +448,7 @@
 MODULE_PARM_DESC(msi, "Set to 1 to use MSI interrupts mode (default 1)\n");
 MODULE_PARM_DESC(debug, "Set debug level (0-5) (default 0)");
 MODULE_PARM_DESC(disable_watchdog, "Set to 1 to disable the watchdog (default 0)\n");
+MODULE_PARM_DESC(int_clear, "Set to 1 to disable interrupt clear before set (default 0)\n");
 
 static SIMPLE_DEV_PM_OPS(rtlwifi_pm_ops, rtl_pci_suspend, rtl_pci_resume);
 
diff --git a/drivers/net/wireless/rtlwifi/wifi.h b/drivers/net/wireless/rtlwifi/wifi.h
index b90ca61..4544752 100644
--- a/drivers/net/wireless/rtlwifi/wifi.h
+++ b/drivers/net/wireless/rtlwifi/wifi.h
@@ -2249,6 +2249,9 @@
 
 	/* default 0: 1 means disable */
 	bool disable_watchdog;
+
+	/* default 0: 1 means do not disable interrupts */
+	bool int_clear;
 };
 
 struct rtl_hal_usbint_cfg {
diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c
index 929a6e7..56ebd82 100644
--- a/drivers/net/xen-netback/xenbus.c
+++ b/drivers/net/xen-netback/xenbus.c
@@ -788,6 +788,12 @@
 	/* Use the number of queues requested by the frontend */
 	be->vif->queues = vzalloc(requested_num_queues *
 				  sizeof(struct xenvif_queue));
+	if (!be->vif->queues) {
+		xenbus_dev_fatal(dev, -ENOMEM,
+				 "allocating queues");
+		return;
+	}
+
 	be->vif->num_queues = requested_num_queues;
 	be->vif->stalled_queues = requested_num_queues;
 
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index d449714..4a7da3c 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -1243,6 +1243,10 @@
 	BUG_ON(!chip);
 	if (!chip->irq_write_msi_msg)
 		chip->irq_write_msi_msg = pci_msi_domain_write_msg;
+	if (!chip->irq_mask)
+		chip->irq_mask = pci_msi_mask_irq;
+	if (!chip->irq_unmask)
+		chip->irq_unmask = pci_msi_unmask_irq;
 }
 
 /**
diff --git a/drivers/perf/arm_pmu.c b/drivers/perf/arm_pmu.c
index 2365a32..be3755c 100644
--- a/drivers/perf/arm_pmu.c
+++ b/drivers/perf/arm_pmu.c
@@ -823,9 +823,15 @@
 		}
 
 		/* Now look up the logical CPU number */
-		for_each_possible_cpu(cpu)
-			if (dn == of_cpu_device_node_get(cpu))
+		for_each_possible_cpu(cpu) {
+			struct device_node *cpu_dn;
+
+			cpu_dn = of_cpu_device_node_get(cpu);
+			of_node_put(cpu_dn);
+
+			if (dn == cpu_dn)
 				break;
+		}
 
 		if (cpu >= nr_cpu_ids) {
 			pr_warn("Failed to find logical CPU for %s\n",
diff --git a/drivers/pinctrl/freescale/pinctrl-imx25.c b/drivers/pinctrl/freescale/pinctrl-imx25.c
index faf6356..293ed43 100644
--- a/drivers/pinctrl/freescale/pinctrl-imx25.c
+++ b/drivers/pinctrl/freescale/pinctrl-imx25.c
@@ -26,7 +26,8 @@
 #include "pinctrl-imx.h"
 
 enum imx25_pads {
-	MX25_PAD_RESERVE0 = 1,
+	MX25_PAD_RESERVE0 = 0,
+	MX25_PAD_RESERVE1 = 1,
 	MX25_PAD_A10 = 2,
 	MX25_PAD_A13 = 3,
 	MX25_PAD_A14 = 4,
@@ -169,6 +170,7 @@
 /* Pad names for the pinmux subsystem */
 static const struct pinctrl_pin_desc imx25_pinctrl_pads[] = {
 	IMX_PINCTRL_PIN(MX25_PAD_RESERVE0),
+	IMX_PINCTRL_PIN(MX25_PAD_RESERVE1),
 	IMX_PINCTRL_PIN(MX25_PAD_A10),
 	IMX_PINCTRL_PIN(MX25_PAD_A13),
 	IMX_PINCTRL_PIN(MX25_PAD_A14),
diff --git a/drivers/pinctrl/sunxi/pinctrl-sun5i-a10s.c b/drivers/pinctrl/sunxi/pinctrl-sun5i-a10s.c
index 6367661..f9a3f8f 100644
--- a/drivers/pinctrl/sunxi/pinctrl-sun5i-a10s.c
+++ b/drivers/pinctrl/sunxi/pinctrl-sun5i-a10s.c
@@ -653,7 +653,7 @@
 		  SUNXI_FUNCTION(0x0, "gpio_in"),
 		  SUNXI_FUNCTION(0x1, "gpio_out"),
 		  SUNXI_FUNCTION(0x2, "spi1"),		/* CS1 */
-		  SUNXI_FUNCTION(0x3, "uart3"),		/* PWM1 */
+		  SUNXI_FUNCTION(0x3, "pwm"),		/* PWM1 */
 		  SUNXI_FUNCTION(0x5, "uart2"),		/* CTS */
 		  SUNXI_FUNCTION_IRQ(0x6, 13)),		/* EINT13 */
 };
diff --git a/drivers/pinctrl/uniphier/pinctrl-ph1-sld8.c b/drivers/pinctrl/uniphier/pinctrl-ph1-sld8.c
index 7e9dae5..2df8bbe 100644
--- a/drivers/pinctrl/uniphier/pinctrl-ph1-sld8.c
+++ b/drivers/pinctrl/uniphier/pinctrl-ph1-sld8.c
@@ -22,49 +22,49 @@
 #define DRIVER_NAME "ph1-sld8-pinctrl"
 
 static const struct pinctrl_pin_desc ph1_sld8_pins[] = {
-	UNIPHIER_PINCTRL_PIN(0, "PCA00", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(0, "PCA00", 0,
 			     15, UNIPHIER_PIN_DRV_4_8,
 			     15, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(1, "PCA01", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(1, "PCA01", 0,
 			     16, UNIPHIER_PIN_DRV_4_8,
 			     16, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(2, "PCA02", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(2, "PCA02", 0,
 			     17, UNIPHIER_PIN_DRV_4_8,
 			     17, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(3, "PCA03", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(3, "PCA03", 0,
 			     18, UNIPHIER_PIN_DRV_4_8,
 			     18, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(4, "PCA04", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(4, "PCA04", 0,
 			     19, UNIPHIER_PIN_DRV_4_8,
 			     19, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(5, "PCA05", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(5, "PCA05", 0,
 			     20, UNIPHIER_PIN_DRV_4_8,
 			     20, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(6, "PCA06", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(6, "PCA06", 0,
 			     21, UNIPHIER_PIN_DRV_4_8,
 			     21, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(7, "PCA07", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(7, "PCA07", 0,
 			     22, UNIPHIER_PIN_DRV_4_8,
 			     22, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(8, "PCA08", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(8, "PCA08", 0,
 			     23, UNIPHIER_PIN_DRV_4_8,
 			     23, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(9, "PCA09", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(9, "PCA09", 0,
 			     24, UNIPHIER_PIN_DRV_4_8,
 			     24, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(10, "PCA10", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(10, "PCA10", 0,
 			     25, UNIPHIER_PIN_DRV_4_8,
 			     25, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(11, "PCA11", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(11, "PCA11", 0,
 			     26, UNIPHIER_PIN_DRV_4_8,
 			     26, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(12, "PCA12", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(12, "PCA12", 0,
 			     27, UNIPHIER_PIN_DRV_4_8,
 			     27, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(13, "PCA13", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(13, "PCA13", 0,
 			     28, UNIPHIER_PIN_DRV_4_8,
 			     28, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(14, "PCA14", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(14, "PCA14", 0,
 			     29, UNIPHIER_PIN_DRV_4_8,
 			     29, UNIPHIER_PIN_PULL_DOWN),
 	UNIPHIER_PINCTRL_PIN(15, "XNFRE_GB", UNIPHIER_PIN_IECTRL_NONE,
@@ -118,199 +118,199 @@
 	UNIPHIER_PINCTRL_PIN(31, "NFD7_GB", UNIPHIER_PIN_IECTRL_NONE,
 			     36, UNIPHIER_PIN_DRV_8_12_16_20,
 			     128, UNIPHIER_PIN_PULL_UP),
-	UNIPHIER_PINCTRL_PIN(32, "SDCLK", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(32, "SDCLK", 8,
 			     40, UNIPHIER_PIN_DRV_8_12_16_20,
 			     -1, UNIPHIER_PIN_PULL_NONE),
-	UNIPHIER_PINCTRL_PIN(33, "SDCMD", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(33, "SDCMD", 8,
 			     44, UNIPHIER_PIN_DRV_8_12_16_20,
 			     -1, UNIPHIER_PIN_PULL_NONE),
-	UNIPHIER_PINCTRL_PIN(34, "SDDAT0", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(34, "SDDAT0", 8,
 			     48, UNIPHIER_PIN_DRV_8_12_16_20,
 			     -1, UNIPHIER_PIN_PULL_NONE),
-	UNIPHIER_PINCTRL_PIN(35, "SDDAT1", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(35, "SDDAT1", 8,
 			     52, UNIPHIER_PIN_DRV_8_12_16_20,
 			     -1, UNIPHIER_PIN_PULL_NONE),
-	UNIPHIER_PINCTRL_PIN(36, "SDDAT2", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(36, "SDDAT2", 8,
 			     56, UNIPHIER_PIN_DRV_8_12_16_20,
 			     -1, UNIPHIER_PIN_PULL_NONE),
-	UNIPHIER_PINCTRL_PIN(37, "SDDAT3", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(37, "SDDAT3", 8,
 			     60, UNIPHIER_PIN_DRV_8_12_16_20,
 			     -1, UNIPHIER_PIN_PULL_NONE),
-	UNIPHIER_PINCTRL_PIN(38, "SDCD", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(38, "SDCD", 8,
 			     -1, UNIPHIER_PIN_DRV_FIXED_4,
 			     129, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(39, "SDWP", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(39, "SDWP", 8,
 			     -1, UNIPHIER_PIN_DRV_FIXED_4,
 			     130, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(40, "SDVOLC", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(40, "SDVOLC", 9,
 			     -1, UNIPHIER_PIN_DRV_FIXED_4,
 			     131, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(41, "USB0VBUS", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(41, "USB0VBUS", 0,
 			     37, UNIPHIER_PIN_DRV_4_8,
 			     37, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(42, "USB0OD", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(42, "USB0OD", 0,
 			     38, UNIPHIER_PIN_DRV_4_8,
 			     38, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(43, "USB1VBUS", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(43, "USB1VBUS", 0,
 			     39, UNIPHIER_PIN_DRV_4_8,
 			     39, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(44, "USB1OD", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(44, "USB1OD", 0,
 			     40, UNIPHIER_PIN_DRV_4_8,
 			     40, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(45, "PCRESET", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(45, "PCRESET", 0,
 			     41, UNIPHIER_PIN_DRV_4_8,
 			     41, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(46, "PCREG", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(46, "PCREG", 0,
 			     42, UNIPHIER_PIN_DRV_4_8,
 			     42, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(47, "PCCE2", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(47, "PCCE2", 0,
 			     43, UNIPHIER_PIN_DRV_4_8,
 			     43, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(48, "PCVS1", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(48, "PCVS1", 0,
 			     44, UNIPHIER_PIN_DRV_4_8,
 			     44, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(49, "PCCD2", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(49, "PCCD2", 0,
 			     45, UNIPHIER_PIN_DRV_4_8,
 			     45, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(50, "PCCD1", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(50, "PCCD1", 0,
 			     46, UNIPHIER_PIN_DRV_4_8,
 			     46, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(51, "PCREADY", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(51, "PCREADY", 0,
 			     47, UNIPHIER_PIN_DRV_4_8,
 			     47, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(52, "PCDOE", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(52, "PCDOE", 0,
 			     48, UNIPHIER_PIN_DRV_4_8,
 			     48, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(53, "PCCE1", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(53, "PCCE1", 0,
 			     49, UNIPHIER_PIN_DRV_4_8,
 			     49, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(54, "PCWE", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(54, "PCWE", 0,
 			     50, UNIPHIER_PIN_DRV_4_8,
 			     50, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(55, "PCOE", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(55, "PCOE", 0,
 			     51, UNIPHIER_PIN_DRV_4_8,
 			     51, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(56, "PCWAIT", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(56, "PCWAIT", 0,
 			     52, UNIPHIER_PIN_DRV_4_8,
 			     52, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(57, "PCIOWR", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(57, "PCIOWR", 0,
 			     53, UNIPHIER_PIN_DRV_4_8,
 			     53, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(58, "PCIORD", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(58, "PCIORD", 0,
 			     54, UNIPHIER_PIN_DRV_4_8,
 			     54, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(59, "HS0DIN0", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(59, "HS0DIN0", 0,
 			     55, UNIPHIER_PIN_DRV_4_8,
 			     55, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(60, "HS0DIN1", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(60, "HS0DIN1", 0,
 			     56, UNIPHIER_PIN_DRV_4_8,
 			     56, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(61, "HS0DIN2", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(61, "HS0DIN2", 0,
 			     57, UNIPHIER_PIN_DRV_4_8,
 			     57, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(62, "HS0DIN3", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(62, "HS0DIN3", 0,
 			     58, UNIPHIER_PIN_DRV_4_8,
 			     58, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(63, "HS0DIN4", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(63, "HS0DIN4", 0,
 			     59, UNIPHIER_PIN_DRV_4_8,
 			     59, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(64, "HS0DIN5", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(64, "HS0DIN5", 0,
 			     60, UNIPHIER_PIN_DRV_4_8,
 			     60, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(65, "HS0DIN6", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(65, "HS0DIN6", 0,
 			     61, UNIPHIER_PIN_DRV_4_8,
 			     61, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(66, "HS0DIN7", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(66, "HS0DIN7", 0,
 			     62, UNIPHIER_PIN_DRV_4_8,
 			     62, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(67, "HS0BCLKIN", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(67, "HS0BCLKIN", 0,
 			     63, UNIPHIER_PIN_DRV_4_8,
 			     63, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(68, "HS0VALIN", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(68, "HS0VALIN", 0,
 			     64, UNIPHIER_PIN_DRV_4_8,
 			     64, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(69, "HS0SYNCIN", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(69, "HS0SYNCIN", 0,
 			     65, UNIPHIER_PIN_DRV_4_8,
 			     65, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(70, "HSDOUT0", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(70, "HSDOUT0", 0,
 			     66, UNIPHIER_PIN_DRV_4_8,
 			     66, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(71, "HSDOUT1", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(71, "HSDOUT1", 0,
 			     67, UNIPHIER_PIN_DRV_4_8,
 			     67, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(72, "HSDOUT2", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(72, "HSDOUT2", 0,
 			     68, UNIPHIER_PIN_DRV_4_8,
 			     68, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(73, "HSDOUT3", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(73, "HSDOUT3", 0,
 			     69, UNIPHIER_PIN_DRV_4_8,
 			     69, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(74, "HSDOUT4", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(74, "HSDOUT4", 0,
 			     70, UNIPHIER_PIN_DRV_4_8,
 			     70, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(75, "HSDOUT5", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(75, "HSDOUT5", 0,
 			     71, UNIPHIER_PIN_DRV_4_8,
 			     71, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(76, "HSDOUT6", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(76, "HSDOUT6", 0,
 			     72, UNIPHIER_PIN_DRV_4_8,
 			     72, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(77, "HSDOUT7", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(77, "HSDOUT7", 0,
 			     73, UNIPHIER_PIN_DRV_4_8,
 			     73, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(78, "HSBCLKOUT", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(78, "HSBCLKOUT", 0,
 			     74, UNIPHIER_PIN_DRV_4_8,
 			     74, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(79, "HSVALOUT", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(79, "HSVALOUT", 0,
 			     75, UNIPHIER_PIN_DRV_4_8,
 			     75, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(80, "HSSYNCOUT", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(80, "HSSYNCOUT", 0,
 			     76, UNIPHIER_PIN_DRV_4_8,
 			     76, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(81, "HS1DIN0", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(81, "HS1DIN0", 0,
 			     77, UNIPHIER_PIN_DRV_4_8,
 			     77, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(82, "HS1DIN1", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(82, "HS1DIN1", 0,
 			     78, UNIPHIER_PIN_DRV_4_8,
 			     78, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(83, "HS1DIN2", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(83, "HS1DIN2", 0,
 			     79, UNIPHIER_PIN_DRV_4_8,
 			     79, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(84, "HS1DIN3", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(84, "HS1DIN3", 0,
 			     80, UNIPHIER_PIN_DRV_4_8,
 			     80, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(85, "HS1DIN4", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(85, "HS1DIN4", 0,
 			     81, UNIPHIER_PIN_DRV_4_8,
 			     81, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(86, "HS1DIN5", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(86, "HS1DIN5", 0,
 			     82, UNIPHIER_PIN_DRV_4_8,
 			     82, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(87, "HS1DIN6", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(87, "HS1DIN6", 0,
 			     83, UNIPHIER_PIN_DRV_4_8,
 			     83, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(88, "HS1DIN7", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(88, "HS1DIN7", 0,
 			     84, UNIPHIER_PIN_DRV_4_8,
 			     84, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(89, "HS1BCLKIN", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(89, "HS1BCLKIN", 0,
 			     85, UNIPHIER_PIN_DRV_4_8,
 			     85, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(90, "HS1VALIN", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(90, "HS1VALIN", 0,
 			     86, UNIPHIER_PIN_DRV_4_8,
 			     86, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(91, "HS1SYNCIN", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(91, "HS1SYNCIN", 0,
 			     87, UNIPHIER_PIN_DRV_4_8,
 			     87, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(92, "AGCI", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(92, "AGCI", 3,
 			     -1, UNIPHIER_PIN_DRV_FIXED_4,
 			     132, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(93, "AGCR", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(93, "AGCR", 4,
 			     -1, UNIPHIER_PIN_DRV_FIXED_4,
 			     133, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(94, "AGCBS", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(94, "AGCBS", 5,
 			     -1, UNIPHIER_PIN_DRV_FIXED_4,
 			     134, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(95, "IECOUT", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(95, "IECOUT", 0,
 			     88, UNIPHIER_PIN_DRV_4_8,
 			     88, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(96, "ASMCK", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(96, "ASMCK", 0,
 			     89, UNIPHIER_PIN_DRV_4_8,
 			     89, UNIPHIER_PIN_PULL_DOWN),
 	UNIPHIER_PINCTRL_PIN(97, "ABCKO", UNIPHIER_PIN_IECTRL_NONE,
@@ -325,31 +325,31 @@
 	UNIPHIER_PINCTRL_PIN(100, "ASDOUT1", UNIPHIER_PIN_IECTRL_NONE,
 			     93, UNIPHIER_PIN_DRV_4_8,
 			     93, UNIPHIER_PIN_PULL_UP),
-	UNIPHIER_PINCTRL_PIN(101, "ARCOUT", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(101, "ARCOUT", 0,
 			     94, UNIPHIER_PIN_DRV_4_8,
 			     94, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(102, "SDA0", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(102, "SDA0", 10,
 			     -1, UNIPHIER_PIN_DRV_FIXED_4,
 			     -1, UNIPHIER_PIN_PULL_NONE),
-	UNIPHIER_PINCTRL_PIN(103, "SCL0", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(103, "SCL0", 10,
 			     -1, UNIPHIER_PIN_DRV_FIXED_4,
 			     -1, UNIPHIER_PIN_PULL_NONE),
-	UNIPHIER_PINCTRL_PIN(104, "SDA1", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(104, "SDA1", 11,
 			     -1, UNIPHIER_PIN_DRV_FIXED_4,
 			     -1, UNIPHIER_PIN_PULL_NONE),
-	UNIPHIER_PINCTRL_PIN(105, "SCL1", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(105, "SCL1", 11,
 			     -1, UNIPHIER_PIN_DRV_FIXED_4,
 			     -1, UNIPHIER_PIN_PULL_NONE),
-	UNIPHIER_PINCTRL_PIN(106, "DMDSDA0", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(106, "DMDSDA0", 12,
 			     -1, UNIPHIER_PIN_DRV_FIXED_4,
 			     -1, UNIPHIER_PIN_PULL_NONE),
-	UNIPHIER_PINCTRL_PIN(107, "DMDSCL0", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(107, "DMDSCL0", 12,
 			     -1, UNIPHIER_PIN_DRV_FIXED_4,
 			     -1, UNIPHIER_PIN_PULL_NONE),
-	UNIPHIER_PINCTRL_PIN(108, "DMDSDA1", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(108, "DMDSDA1", 13,
 			     -1, UNIPHIER_PIN_DRV_FIXED_4,
 			     -1, UNIPHIER_PIN_PULL_NONE),
-	UNIPHIER_PINCTRL_PIN(109, "DMDSCL1", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(109, "DMDSCL1", 13,
 			     -1, UNIPHIER_PIN_DRV_FIXED_4,
 			     -1, UNIPHIER_PIN_PULL_NONE),
 	UNIPHIER_PINCTRL_PIN(110, "SBO0", UNIPHIER_PIN_IECTRL_NONE,
@@ -358,76 +358,76 @@
 	UNIPHIER_PINCTRL_PIN(111, "SBI0", UNIPHIER_PIN_IECTRL_NONE,
 			     96, UNIPHIER_PIN_DRV_4_8,
 			     96, UNIPHIER_PIN_PULL_UP),
-	UNIPHIER_PINCTRL_PIN(112, "SBO1", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(112, "SBO1", 0,
 			     97, UNIPHIER_PIN_DRV_4_8,
 			     97, UNIPHIER_PIN_PULL_UP),
-	UNIPHIER_PINCTRL_PIN(113, "SBI1", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(113, "SBI1", 0,
 			     98, UNIPHIER_PIN_DRV_4_8,
 			     98, UNIPHIER_PIN_PULL_UP),
-	UNIPHIER_PINCTRL_PIN(114, "TXD1", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(114, "TXD1", 0,
 			     99, UNIPHIER_PIN_DRV_4_8,
 			     99, UNIPHIER_PIN_PULL_UP),
-	UNIPHIER_PINCTRL_PIN(115, "RXD1", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(115, "RXD1", 0,
 			     100, UNIPHIER_PIN_DRV_4_8,
 			     100, UNIPHIER_PIN_PULL_UP),
-	UNIPHIER_PINCTRL_PIN(116, "HIN", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(116, "HIN", 1,
 			     -1, UNIPHIER_PIN_DRV_FIXED_5,
 			     -1, UNIPHIER_PIN_PULL_NONE),
-	UNIPHIER_PINCTRL_PIN(117, "VIN", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(117, "VIN", 2,
 			     -1, UNIPHIER_PIN_DRV_FIXED_5,
 			     -1, UNIPHIER_PIN_PULL_NONE),
-	UNIPHIER_PINCTRL_PIN(118, "TCON0", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(118, "TCON0", 0,
 			     101, UNIPHIER_PIN_DRV_4_8,
 			     101, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(119, "TCON1", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(119, "TCON1", 0,
 			     102, UNIPHIER_PIN_DRV_4_8,
 			     102, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(120, "TCON2", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(120, "TCON2", 0,
 			     103, UNIPHIER_PIN_DRV_4_8,
 			     103, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(121, "TCON3", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(121, "TCON3", 0,
 			     104, UNIPHIER_PIN_DRV_4_8,
 			     104, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(122, "TCON4", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(122, "TCON4", 0,
 			     105, UNIPHIER_PIN_DRV_4_8,
 			     105, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(123, "TCON5", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(123, "TCON5", 0,
 			     106, UNIPHIER_PIN_DRV_4_8,
 			     106, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(124, "TCON6", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(124, "TCON6", 0,
 			     107, UNIPHIER_PIN_DRV_4_8,
 			     107, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(125, "TCON7", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(125, "TCON7", 0,
 			     108, UNIPHIER_PIN_DRV_4_8,
 			     108, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(126, "TCON8", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(126, "TCON8", 0,
 			     109, UNIPHIER_PIN_DRV_4_8,
 			     109, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(127, "PWMA", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(127, "PWMA", 0,
 			     110, UNIPHIER_PIN_DRV_4_8,
 			     110, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(128, "XIRQ0", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(128, "XIRQ0", 0,
 			     111, UNIPHIER_PIN_DRV_4_8,
 			     111, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(129, "XIRQ1", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(129, "XIRQ1", 0,
 			     112, UNIPHIER_PIN_DRV_4_8,
 			     112, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(130, "XIRQ2", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(130, "XIRQ2", 0,
 			     113, UNIPHIER_PIN_DRV_4_8,
 			     113, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(131, "XIRQ3", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(131, "XIRQ3", 0,
 			     114, UNIPHIER_PIN_DRV_4_8,
 			     114, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(132, "XIRQ4", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(132, "XIRQ4", 0,
 			     115, UNIPHIER_PIN_DRV_4_8,
 			     115, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(133, "XIRQ5", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(133, "XIRQ5", 0,
 			     116, UNIPHIER_PIN_DRV_4_8,
 			     116, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(134, "XIRQ6", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(134, "XIRQ6", 0,
 			     117, UNIPHIER_PIN_DRV_4_8,
 			     117, UNIPHIER_PIN_PULL_DOWN),
-	UNIPHIER_PINCTRL_PIN(135, "XIRQ7", UNIPHIER_PIN_IECTRL_NONE,
+	UNIPHIER_PINCTRL_PIN(135, "XIRQ7", 0,
 			     118, UNIPHIER_PIN_DRV_4_8,
 			     118, UNIPHIER_PIN_PULL_DOWN),
 };
diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi/core.c
index 5153d1d..9113876 100644
--- a/drivers/pnp/pnpacpi/core.c
+++ b/drivers/pnp/pnpacpi/core.c
@@ -207,7 +207,7 @@
 };
 EXPORT_SYMBOL(pnpacpi_protocol);
 
-static char *__init pnpacpi_get_id(struct acpi_device *device)
+static const char *__init pnpacpi_get_id(struct acpi_device *device)
 {
 	struct acpi_hardware_id *id;
 
@@ -222,7 +222,7 @@
 static int __init pnpacpi_add_device(struct acpi_device *device)
 {
 	struct pnp_dev *dev;
-	char *pnpid;
+	const char *pnpid;
 	struct acpi_hardware_id *id;
 	int error;
 
diff --git a/drivers/staging/iio/accel/sca3000_ring.c b/drivers/staging/iio/accel/sca3000_ring.c
index 23685e7..bd2c69f 100644
--- a/drivers/staging/iio/accel/sca3000_ring.c
+++ b/drivers/staging/iio/accel/sca3000_ring.c
@@ -116,7 +116,7 @@
 	if (ret)
 		goto error_ret;
 
-	for (i = 0; i < num_read; i++)
+	for (i = 0; i < num_read / sizeof(u16); i++)
 		*(((u16 *)rx) + i) = be16_to_cpup((__be16 *)rx + i);
 
 	if (copy_to_user(buf, rx, num_read))
diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c
index 3f7715c..47fc00a 100644
--- a/drivers/staging/iio/adc/mxs-lradc.c
+++ b/drivers/staging/iio/adc/mxs-lradc.c
@@ -915,11 +915,12 @@
 	case IIO_CHAN_INFO_OFFSET:
 		if (chan->type == IIO_TEMP) {
 			/* The calculated value from the ADC is in Kelvin, we
-			 * want Celsius for hwmon so the offset is
-			 * -272.15 * scale
+			 * want Celsius for hwmon so the offset is -273.15
+			 * The offset is applied before scaling so it is
+			 * actually -213.15 * 4 / 1.012 = -1079.644268
 			 */
-			*val = -1075;
-			*val2 = 691699;
+			*val = -1079;
+			*val2 = 644268;
 
 			return IIO_VAL_INT_PLUS_MICRO;
 		}
diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c
index 769b611..a9bc6e2 100644
--- a/drivers/staging/lustre/lustre/llite/dir.c
+++ b/drivers/staging/lustre/lustre/llite/dir.c
@@ -224,7 +224,7 @@
 
 		prefetchw(&page->flags);
 		ret = add_to_page_cache_lru(page, inode->i_mapping, offset,
-					    GFP_KERNEL);
+					    GFP_NOFS);
 		if (ret == 0) {
 			unlock_page(page);
 		} else {
diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index 0bae8cc..ca920b0 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -932,7 +932,7 @@
 
 	if (data->soc == SOC_ARCH_EXYNOS5260)
 		emul_con = EXYNOS5260_EMUL_CON;
-	if (data->soc == SOC_ARCH_EXYNOS5433)
+	else if (data->soc == SOC_ARCH_EXYNOS5433)
 		emul_con = EXYNOS5433_TMU_EMUL_CON;
 	else if (data->soc == SOC_ARCH_EXYNOS7)
 		emul_con = EXYNOS7_TMU_REG_EMUL_CON;
diff --git a/drivers/tty/serial/8250/8250_dma.c b/drivers/tty/serial/8250/8250_dma.c
index 21d01a4..e508939 100644
--- a/drivers/tty/serial/8250/8250_dma.c
+++ b/drivers/tty/serial/8250/8250_dma.c
@@ -80,10 +80,6 @@
 		return 0;
 
 	dma->tx_size = CIRC_CNT_TO_END(xmit->head, xmit->tail, UART_XMIT_SIZE);
-	if (dma->tx_size < p->port.fifosize) {
-		ret = -EINVAL;
-		goto err;
-	}
 
 	desc = dmaengine_prep_slave_single(dma->txchan,
 					   dma->tx_addr + xmit->tail,
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index c79d336..c47d3e4 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -147,6 +147,7 @@
 	if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
 		pdev->device == PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI) {
 		xhci->quirks |= XHCI_SPURIOUS_REBOOT;
+		xhci->quirks |= XHCI_SPURIOUS_WAKEUP;
 	}
 	if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
 		(pdev->device == PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_XHCI ||
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 43291f9..97ffe39 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -2191,6 +2191,10 @@
 		}
 	/* Fast path - was this the last TRB in the TD for this URB? */
 	} else if (event_trb == td->last_trb) {
+		if (td->urb_length_set && trb_comp_code == COMP_SHORT_TX)
+			return finish_td(xhci, td, event_trb, event, ep,
+					 status, false);
+
 		if (EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)) != 0) {
 			td->urb->actual_length =
 				td->urb->transfer_buffer_length -
@@ -2242,6 +2246,12 @@
 			td->urb->actual_length +=
 				TRB_LEN(le32_to_cpu(cur_trb->generic.field[2])) -
 				EVENT_TRB_LEN(le32_to_cpu(event->transfer_len));
+
+		if (trb_comp_code == COMP_SHORT_TX) {
+			xhci_dbg(xhci, "mid bulk/intr SP, wait for last TRB event\n");
+			td->urb_length_set = true;
+			return 0;
+		}
 	}
 
 	return finish_td(xhci, td, event_trb, event, ep, status, false);
@@ -2274,6 +2284,7 @@
 	u32 trb_comp_code;
 	int ret = 0;
 	int td_num = 0;
+	bool handling_skipped_tds = false;
 
 	slot_id = TRB_TO_SLOT_ID(le32_to_cpu(event->flags));
 	xdev = xhci->devs[slot_id];
@@ -2410,6 +2421,10 @@
 		ep->skip = true;
 		xhci_dbg(xhci, "Miss service interval error, set skip flag\n");
 		goto cleanup;
+	case COMP_PING_ERR:
+		ep->skip = true;
+		xhci_dbg(xhci, "No Ping response error, Skip one Isoc TD\n");
+		goto cleanup;
 	default:
 		if (xhci_is_vendor_info_code(xhci, trb_comp_code)) {
 			status = 0;
@@ -2546,13 +2561,18 @@
 						 ep, &status);
 
 cleanup:
+
+
+		handling_skipped_tds = ep->skip &&
+			trb_comp_code != COMP_MISSED_INT &&
+			trb_comp_code != COMP_PING_ERR;
+
 		/*
-		 * Do not update event ring dequeue pointer if ep->skip is set.
-		 * Will roll back to continue process missed tds.
+		 * Do not update event ring dequeue pointer if we're in a loop
+		 * processing missed tds.
 		 */
-		if (trb_comp_code == COMP_MISSED_INT || !ep->skip) {
+		if (!handling_skipped_tds)
 			inc_deq(xhci, xhci->event_ring);
-		}
 
 		if (ret) {
 			urb = td->urb;
@@ -2587,7 +2607,7 @@
 	 * Process them as short transfer until reach the td pointed by
 	 * the event.
 	 */
-	} while (ep->skip && trb_comp_code != COMP_MISSED_INT);
+	} while (handling_skipped_tds);
 
 	return 0;
 }
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index 1aaf893..92f3949 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -1093,6 +1093,7 @@
 		con_copy_unimap(vc, svc);
 
 	ops = info->fbcon_par;
+	ops->cur_blink_jiffies = msecs_to_jiffies(vc->vc_cur_blink_ms);
 	p->con_rotate = initial_rotation;
 	set_blitting_type(vc, info);
 
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index ecbc63d..9a2ec79 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -1828,7 +1828,6 @@
 	int found = 0;
 	struct extent_buffer *eb;
 	struct btrfs_inode_extref *extref;
-	struct extent_buffer *leaf;
 	u32 item_size;
 	u32 cur_offset;
 	unsigned long ptr;
@@ -1856,9 +1855,8 @@
 		btrfs_set_lock_blocking_rw(eb, BTRFS_READ_LOCK);
 		btrfs_release_path(path);
 
-		leaf = path->nodes[0];
-		item_size = btrfs_item_size_nr(leaf, slot);
-		ptr = btrfs_item_ptr_offset(leaf, slot);
+		item_size = btrfs_item_size_nr(eb, slot);
+		ptr = btrfs_item_ptr_offset(eb, slot);
 		cur_offset = 0;
 
 		while (cur_offset < item_size) {
@@ -1872,7 +1870,7 @@
 			if (ret)
 				break;
 
-			cur_offset += btrfs_inode_extref_name_len(leaf, extref);
+			cur_offset += btrfs_inode_extref_name_len(eb, extref);
 			cur_offset += sizeof(*extref);
 		}
 		btrfs_tree_read_unlock_blocking(eb);
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index b823fac9..8c6f247 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -2584,7 +2584,7 @@
 					alloc_start);
 		if (ret)
 			goto out;
-	} else {
+	} else if (offset + len > inode->i_size) {
 		/*
 		 * If we are fallocating from the end of the file onward we
 		 * need to zero out the end of the page if i_size lands in the
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 0adf542..8d20f3b 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -4639,6 +4639,11 @@
 		bctl->flags |= BTRFS_BALANCE_TYPE_MASK;
 	}
 
+	if (bctl->flags & ~(BTRFS_BALANCE_ARGS_MASK | BTRFS_BALANCE_TYPE_MASK)) {
+		ret = -EINVAL;
+		goto out_bctl;
+	}
+
 do_balance:
 	/*
 	 * Ownership of bctl and mutually_exclusive_operation_running
@@ -4650,12 +4655,15 @@
 	need_unlock = false;
 
 	ret = btrfs_balance(bctl, bargs);
+	bctl = NULL;
 
 	if (arg) {
 		if (copy_to_user(arg, bargs, sizeof(*bargs)))
 			ret = -EFAULT;
 	}
 
+out_bctl:
+	kfree(bctl);
 out_bargs:
 	kfree(bargs);
 out_unlock:
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 2ca784a..595279a 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -376,6 +376,14 @@
 #define BTRFS_BALANCE_ARGS_VRANGE	(1ULL << 4)
 #define BTRFS_BALANCE_ARGS_LIMIT	(1ULL << 5)
 
+#define BTRFS_BALANCE_ARGS_MASK			\
+	(BTRFS_BALANCE_ARGS_PROFILES |		\
+	 BTRFS_BALANCE_ARGS_USAGE |		\
+	 BTRFS_BALANCE_ARGS_DEVID | 		\
+	 BTRFS_BALANCE_ARGS_DRANGE |		\
+	 BTRFS_BALANCE_ARGS_VRANGE |		\
+	 BTRFS_BALANCE_ARGS_LIMIT)
+
 /*
  * Profile changing flags.  When SOFT is set we won't relocate chunk if
  * it already has the target profile (even though it may be
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index e2a6af1..62203c3 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -3380,6 +3380,7 @@
 	struct page *page, *tpage;
 	unsigned int expected_index;
 	int rc;
+	gfp_t gfp = GFP_KERNEL & mapping_gfp_mask(mapping);
 
 	INIT_LIST_HEAD(tmplist);
 
@@ -3392,7 +3393,7 @@
 	 */
 	__set_page_locked(page);
 	rc = add_to_page_cache_locked(page, mapping,
-				      page->index, GFP_KERNEL);
+				      page->index, gfp);
 
 	/* give up if we can't stick it in the cache */
 	if (rc) {
@@ -3418,8 +3419,7 @@
 			break;
 
 		__set_page_locked(page);
-		if (add_to_page_cache_locked(page, mapping, page->index,
-								GFP_KERNEL)) {
+		if (add_to_page_cache_locked(page, mapping, page->index, gfp)) {
 			__clear_page_locked(page);
 			break;
 		}
diff --git a/fs/dax.c b/fs/dax.c
index bcfb14b..a86d3cc 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -285,6 +285,7 @@
 static int dax_insert_mapping(struct inode *inode, struct buffer_head *bh,
 			struct vm_area_struct *vma, struct vm_fault *vmf)
 {
+	struct address_space *mapping = inode->i_mapping;
 	sector_t sector = bh->b_blocknr << (inode->i_blkbits - 9);
 	unsigned long vaddr = (unsigned long)vmf->virtual_address;
 	void __pmem *addr;
@@ -292,6 +293,8 @@
 	pgoff_t size;
 	int error;
 
+	i_mmap_lock_read(mapping);
+
 	/*
 	 * Check truncate didn't happen while we were allocating a block.
 	 * If it did, this block may or may not be still allocated to the
@@ -321,6 +324,8 @@
 	error = vm_insert_mixed(vma, vaddr, pfn);
 
  out:
+	i_mmap_unlock_read(mapping);
+
 	return error;
 }
 
@@ -382,17 +387,15 @@
 			 * from a read fault and we've raced with a truncate
 			 */
 			error = -EIO;
-			goto unlock;
+			goto unlock_page;
 		}
-	} else {
-		i_mmap_lock_write(mapping);
 	}
 
 	error = get_block(inode, block, &bh, 0);
 	if (!error && (bh.b_size < PAGE_SIZE))
 		error = -EIO;		/* fs corruption? */
 	if (error)
-		goto unlock;
+		goto unlock_page;
 
 	if (!buffer_mapped(&bh) && !buffer_unwritten(&bh) && !vmf->cow_page) {
 		if (vmf->flags & FAULT_FLAG_WRITE) {
@@ -403,9 +406,8 @@
 			if (!error && (bh.b_size < PAGE_SIZE))
 				error = -EIO;
 			if (error)
-				goto unlock;
+				goto unlock_page;
 		} else {
-			i_mmap_unlock_write(mapping);
 			return dax_load_hole(mapping, page, vmf);
 		}
 	}
@@ -417,15 +419,17 @@
 		else
 			clear_user_highpage(new_page, vaddr);
 		if (error)
-			goto unlock;
+			goto unlock_page;
 		vmf->page = page;
 		if (!page) {
+			i_mmap_lock_read(mapping);
 			/* Check we didn't race with truncate */
 			size = (i_size_read(inode) + PAGE_SIZE - 1) >>
 								PAGE_SHIFT;
 			if (vmf->pgoff >= size) {
+				i_mmap_unlock_read(mapping);
 				error = -EIO;
-				goto unlock;
+				goto out;
 			}
 		}
 		return VM_FAULT_LOCKED;
@@ -461,8 +465,6 @@
 			WARN_ON_ONCE(!(vmf->flags & FAULT_FLAG_WRITE));
 	}
 
-	if (!page)
-		i_mmap_unlock_write(mapping);
  out:
 	if (error == -ENOMEM)
 		return VM_FAULT_OOM | major;
@@ -471,14 +473,11 @@
 		return VM_FAULT_SIGBUS | major;
 	return VM_FAULT_NOPAGE | major;
 
- unlock:
+ unlock_page:
 	if (page) {
 		unlock_page(page);
 		page_cache_release(page);
-	} else {
-		i_mmap_unlock_write(mapping);
 	}
-
 	goto out;
 }
 EXPORT_SYMBOL(__dax_fault);
@@ -556,10 +555,10 @@
 	block = (sector_t)pgoff << (PAGE_SHIFT - blkbits);
 
 	bh.b_size = PMD_SIZE;
-	i_mmap_lock_write(mapping);
 	length = get_block(inode, block, &bh, write);
 	if (length)
 		return VM_FAULT_SIGBUS;
+	i_mmap_lock_read(mapping);
 
 	/*
 	 * If the filesystem isn't willing to tell us the length of a hole,
@@ -569,36 +568,14 @@
 	if (!buffer_size_valid(&bh) || bh.b_size < PMD_SIZE)
 		goto fallback;
 
-	sector = bh.b_blocknr << (blkbits - 9);
-
-	if (buffer_unwritten(&bh) || buffer_new(&bh)) {
-		int i;
-
-		length = bdev_direct_access(bh.b_bdev, sector, &kaddr, &pfn,
-						bh.b_size);
-		if (length < 0) {
-			result = VM_FAULT_SIGBUS;
-			goto out;
-		}
-		if ((length < PMD_SIZE) || (pfn & PG_PMD_COLOUR))
-			goto fallback;
-
-		for (i = 0; i < PTRS_PER_PMD; i++)
-			clear_pmem(kaddr + i * PAGE_SIZE, PAGE_SIZE);
-		wmb_pmem();
-		count_vm_event(PGMAJFAULT);
-		mem_cgroup_count_vm_event(vma->vm_mm, PGMAJFAULT);
-		result |= VM_FAULT_MAJOR;
-	}
-
 	/*
 	 * If we allocated new storage, make sure no process has any
 	 * zero pages covering this hole
 	 */
 	if (buffer_new(&bh)) {
-		i_mmap_unlock_write(mapping);
+		i_mmap_unlock_read(mapping);
 		unmap_mapping_range(mapping, pgoff << PAGE_SHIFT, PMD_SIZE, 0);
-		i_mmap_lock_write(mapping);
+		i_mmap_lock_read(mapping);
 	}
 
 	/*
@@ -635,6 +612,7 @@
 		result = VM_FAULT_NOPAGE;
 		spin_unlock(ptl);
 	} else {
+		sector = bh.b_blocknr << (blkbits - 9);
 		length = bdev_direct_access(bh.b_bdev, sector, &kaddr, &pfn,
 						bh.b_size);
 		if (length < 0) {
@@ -644,15 +622,25 @@
 		if ((length < PMD_SIZE) || (pfn & PG_PMD_COLOUR))
 			goto fallback;
 
+		if (buffer_unwritten(&bh) || buffer_new(&bh)) {
+			int i;
+			for (i = 0; i < PTRS_PER_PMD; i++)
+				clear_pmem(kaddr + i * PAGE_SIZE, PAGE_SIZE);
+			wmb_pmem();
+			count_vm_event(PGMAJFAULT);
+			mem_cgroup_count_vm_event(vma->vm_mm, PGMAJFAULT);
+			result |= VM_FAULT_MAJOR;
+		}
+
 		result |= vmf_insert_pfn_pmd(vma, address, pmd, pfn, write);
 	}
 
  out:
+	i_mmap_unlock_read(mapping);
+
 	if (buffer_unwritten(&bh))
 		complete_unwritten(&bh, !(result & VM_FAULT_ERROR));
 
-	i_mmap_unlock_write(mapping);
-
 	return result;
 
  fallback:
diff --git a/fs/ext4/Kconfig b/fs/ext4/Kconfig
index 47728da..b46e9fc 100644
--- a/fs/ext4/Kconfig
+++ b/fs/ext4/Kconfig
@@ -63,7 +63,7 @@
 	  If unsure, say N.
 
 config EXT4_USE_FOR_EXT2
-	bool "Use ext4 for ext2/ext3 file systems"
+	bool "Use ext4 for ext2 file systems"
 	depends on EXT4_FS
 	depends on EXT2_FS=n
 	default y
diff --git a/fs/ext4/readpage.c b/fs/ext4/readpage.c
index e26803f..560af04 100644
--- a/fs/ext4/readpage.c
+++ b/fs/ext4/readpage.c
@@ -165,8 +165,8 @@
 		if (pages) {
 			page = list_entry(pages->prev, struct page, lru);
 			list_del(&page->lru);
-			if (add_to_page_cache_lru(page, mapping,
-						  page->index, GFP_KERNEL))
+			if (add_to_page_cache_lru(page, mapping, page->index,
+					GFP_KERNEL & mapping_gfp_mask(mapping)))
 				goto next_page;
 		}
 
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 091a364..29e4599 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -778,19 +778,24 @@
 				  struct wb_writeback_work *base_work,
 				  bool skip_if_busy)
 {
-	int next_memcg_id = 0;
-	struct bdi_writeback *wb;
-	struct wb_iter iter;
+	struct bdi_writeback *last_wb = NULL;
+	struct bdi_writeback *wb = list_entry_rcu(&bdi->wb_list,
+						struct bdi_writeback, bdi_node);
 
 	might_sleep();
 restart:
 	rcu_read_lock();
-	bdi_for_each_wb(wb, bdi, &iter, next_memcg_id) {
+	list_for_each_entry_continue_rcu(wb, &bdi->wb_list, bdi_node) {
 		DEFINE_WB_COMPLETION_ONSTACK(fallback_work_done);
 		struct wb_writeback_work fallback_work;
 		struct wb_writeback_work *work;
 		long nr_pages;
 
+		if (last_wb) {
+			wb_put(last_wb);
+			last_wb = NULL;
+		}
+
 		/* SYNC_ALL writes out I_DIRTY_TIME too */
 		if (!wb_has_dirty_io(wb) &&
 		    (base_work->sync_mode == WB_SYNC_NONE ||
@@ -819,12 +824,22 @@
 
 		wb_queue_work(wb, work);
 
-		next_memcg_id = wb->memcg_css->id + 1;
+		/*
+		 * Pin @wb so that it stays on @bdi->wb_list.  This allows
+		 * continuing iteration from @wb after dropping and
+		 * regrabbing rcu read lock.
+		 */
+		wb_get(wb);
+		last_wb = wb;
+
 		rcu_read_unlock();
 		wb_wait_for_completion(bdi, &fallback_work_done);
 		goto restart;
 	}
 	rcu_read_unlock();
+
+	if (last_wb)
+		wb_put(last_wb);
 }
 
 #else	/* CONFIG_CGROUP_WRITEBACK */
@@ -1857,12 +1872,11 @@
 	rcu_read_lock();
 	list_for_each_entry_rcu(bdi, &bdi_list, bdi_list) {
 		struct bdi_writeback *wb;
-		struct wb_iter iter;
 
 		if (!bdi_has_dirty_io(bdi))
 			continue;
 
-		bdi_for_each_wb(wb, bdi, &iter, 0)
+		list_for_each_entry_rcu(wb, &bdi->wb_list, bdi_node)
 			wb_start_writeback(wb, wb_split_bdi_pages(wb, nr_pages),
 					   false, reason);
 	}
@@ -1894,11 +1908,10 @@
 	rcu_read_lock();
 	list_for_each_entry_rcu(bdi, &bdi_list, bdi_list) {
 		struct bdi_writeback *wb;
-		struct wb_iter iter;
 
-		bdi_for_each_wb(wb, bdi, &iter, 0)
-			if (!list_empty(&bdi->wb.b_dirty_time))
-				wb_wakeup(&bdi->wb);
+		list_for_each_entry_rcu(wb, &bdi->wb_list, bdi_node)
+			if (!list_empty(&wb->b_dirty_time))
+				wb_wakeup(wb);
 	}
 	rcu_read_unlock();
 	schedule_delayed_work(&dirtytime_work, dirtytime_expire_interval * HZ);
diff --git a/fs/mpage.c b/fs/mpage.c
index 778a4dd..a7c3427 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -139,7 +139,8 @@
 static struct bio *
 do_mpage_readpage(struct bio *bio, struct page *page, unsigned nr_pages,
 		sector_t *last_block_in_bio, struct buffer_head *map_bh,
-		unsigned long *first_logical_block, get_block_t get_block)
+		unsigned long *first_logical_block, get_block_t get_block,
+		gfp_t gfp)
 {
 	struct inode *inode = page->mapping->host;
 	const unsigned blkbits = inode->i_blkbits;
@@ -277,8 +278,7 @@
 				goto out;
 		}
 		bio = mpage_alloc(bdev, blocks[0] << (blkbits - 9),
-				min_t(int, nr_pages, BIO_MAX_PAGES),
-				GFP_KERNEL);
+				min_t(int, nr_pages, BIO_MAX_PAGES), gfp);
 		if (bio == NULL)
 			goto confused;
 	}
@@ -361,6 +361,7 @@
 	sector_t last_block_in_bio = 0;
 	struct buffer_head map_bh;
 	unsigned long first_logical_block = 0;
+	gfp_t gfp = GFP_KERNEL & mapping_gfp_mask(mapping);
 
 	map_bh.b_state = 0;
 	map_bh.b_size = 0;
@@ -370,12 +371,13 @@
 		prefetchw(&page->flags);
 		list_del(&page->lru);
 		if (!add_to_page_cache_lru(page, mapping,
-					page->index, GFP_KERNEL)) {
+					page->index,
+					gfp)) {
 			bio = do_mpage_readpage(bio, page,
 					nr_pages - page_idx,
 					&last_block_in_bio, &map_bh,
 					&first_logical_block,
-					get_block);
+					get_block, gfp);
 		}
 		page_cache_release(page);
 	}
@@ -395,11 +397,12 @@
 	sector_t last_block_in_bio = 0;
 	struct buffer_head map_bh;
 	unsigned long first_logical_block = 0;
+	gfp_t gfp = GFP_KERNEL & mapping_gfp_mask(page->mapping);
 
 	map_bh.b_state = 0;
 	map_bh.b_size = 0;
 	bio = do_mpage_readpage(bio, page, 1, &last_block_in_bio,
-			&map_bh, &first_logical_block, get_block);
+			&map_bh, &first_logical_block, get_block, gfp);
 	if (bio)
 		mpage_bio_submit(READ, bio);
 	return 0;
diff --git a/fs/nfsd/blocklayout.c b/fs/nfsd/blocklayout.c
index cdefaa33..c29d942 100644
--- a/fs/nfsd/blocklayout.c
+++ b/fs/nfsd/blocklayout.c
@@ -56,14 +56,6 @@
 	u32 device_generation = 0;
 	int error;
 
-	/*
-	 * We do not attempt to support I/O smaller than the fs block size,
-	 * or not aligned to it.
-	 */
-	if (args->lg_minlength < block_size) {
-		dprintk("pnfsd: I/O too small\n");
-		goto out_layoutunavailable;
-	}
 	if (seg->offset & (block_size - 1)) {
 		dprintk("pnfsd: I/O misaligned\n");
 		goto out_layoutunavailable;
diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c
index ee5aa4d..ce38b4c 100644
--- a/fs/ocfs2/dlm/dlmmaster.c
+++ b/fs/ocfs2/dlm/dlmmaster.c
@@ -1658,12 +1658,13 @@
 		if (ret < 0) {
 			mlog(ML_ERROR, "failed to dispatch assert master work\n");
 			response = DLM_MASTER_RESP_ERROR;
+			spin_unlock(&res->spinlock);
 			dlm_lockres_put(res);
 		} else {
 			dispatched = 1;
 			__dlm_lockres_grab_inflight_worker(dlm, res);
+			spin_unlock(&res->spinlock);
 		}
-		spin_unlock(&res->spinlock);
 	} else {
 		if (res)
 			dlm_lockres_put(res);
diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c
index 3d90ad7..58eaa5c 100644
--- a/fs/ocfs2/dlm/dlmrecovery.c
+++ b/fs/ocfs2/dlm/dlmrecovery.c
@@ -1723,8 +1723,8 @@
 			} else {
 				dispatched = 1;
 				__dlm_lockres_grab_inflight_worker(dlm, res);
+				spin_unlock(&res->spinlock);
 			}
-			spin_unlock(&res->spinlock);
 		} else {
 			/* put.. incase we are not the master */
 			spin_unlock(&res->spinlock);
diff --git a/fs/ramfs/file-nommu.c b/fs/ramfs/file-nommu.c
index ba1323a..a586467 100644
--- a/fs/ramfs/file-nommu.c
+++ b/fs/ramfs/file-nommu.c
@@ -70,6 +70,7 @@
 	unsigned order;
 	void *data;
 	int ret;
+	gfp_t gfp = mapping_gfp_mask(inode->i_mapping);
 
 	/* make various checks */
 	order = get_order(newsize);
@@ -84,7 +85,7 @@
 
 	/* allocate enough contiguous pages to be able to satisfy the
 	 * request */
-	pages = alloc_pages(mapping_gfp_mask(inode->i_mapping), order);
+	pages = alloc_pages(gfp, order);
 	if (!pages)
 		return -ENOMEM;
 
@@ -108,7 +109,7 @@
 		struct page *page = pages + loop;
 
 		ret = add_to_page_cache_lru(page, inode->i_mapping, loop,
-					GFP_KERNEL);
+					gfp);
 		if (ret < 0)
 			goto add_error;
 
diff --git a/include/acpi/acexcep.h b/include/acpi/acexcep.h
index 9f20eb4a..204f581 100644
--- a/include/acpi/acexcep.h
+++ b/include/acpi/acexcep.h
@@ -193,8 +193,9 @@
 #define AE_AML_ILLEGAL_ADDRESS          EXCEP_AML (0x0020)
 #define AE_AML_INFINITE_LOOP            EXCEP_AML (0x0021)
 #define AE_AML_UNINITIALIZED_NODE       EXCEP_AML (0x0022)
+#define AE_AML_TARGET_TYPE              EXCEP_AML (0x0023)
 
-#define AE_CODE_AML_MAX                 0x0022
+#define AE_CODE_AML_MAX                 0x0023
 
 /*
  * Internal exceptions used for control
@@ -358,7 +359,9 @@
 	EXCEP_TXT("AE_AML_INFINITE_LOOP",
 		  "An apparent infinite AML While loop, method was aborted"),
 	EXCEP_TXT("AE_AML_UNINITIALIZED_NODE",
-		  "A namespace node is uninitialized or unresolved")
+		  "A namespace node is uninitialized or unresolved"),
+	EXCEP_TXT("AE_AML_TARGET_TYPE",
+		  "A target operand of an incorrect type was encountered")
 };
 
 static const struct acpi_exception_info acpi_gbl_exception_names_ctrl[] = {
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 5ba8fb6..d11eff8 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -129,7 +129,7 @@
 struct acpi_scan_handler {
 	const struct acpi_device_id *ids;
 	struct list_head list_node;
-	bool (*match)(char *idstr, const struct acpi_device_id **matchid);
+	bool (*match)(const char *idstr, const struct acpi_device_id **matchid);
 	int (*attach)(struct acpi_device *dev, const struct acpi_device_id *id);
 	void (*detach)(struct acpi_device *dev);
 	void (*bind)(struct device *phys_dev);
@@ -227,7 +227,7 @@
 
 struct acpi_hardware_id {
 	struct list_head list;
-	char *id;
+	const char *id;
 };
 
 struct acpi_pnp_type {
@@ -343,6 +343,7 @@
 	const union acpi_object *pointer;
 	const union acpi_object *properties;
 	const union acpi_object *of_compatible;
+	struct list_head subnodes;
 };
 
 struct acpi_gpio_mapping;
@@ -378,6 +379,17 @@
 	void (*remove)(struct acpi_device *);
 };
 
+/* Non-device subnode */
+struct acpi_data_node {
+	const char *name;
+	acpi_handle handle;
+	struct fwnode_handle fwnode;
+	struct acpi_device_data data;
+	struct list_head sibling;
+	struct kobject kobj;
+	struct completion kobj_done;
+};
+
 static inline bool acpi_check_dma(struct acpi_device *adev, bool *coherent)
 {
 	bool ret = false;
@@ -413,15 +425,32 @@
 
 static inline bool is_acpi_node(struct fwnode_handle *fwnode)
 {
+	return fwnode && (fwnode->type == FWNODE_ACPI
+		|| fwnode->type == FWNODE_ACPI_DATA);
+}
+
+static inline bool is_acpi_device_node(struct fwnode_handle *fwnode)
+{
 	return fwnode && fwnode->type == FWNODE_ACPI;
 }
 
-static inline struct acpi_device *to_acpi_node(struct fwnode_handle *fwnode)
+static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode)
 {
-	return is_acpi_node(fwnode) ?
+	return is_acpi_device_node(fwnode) ?
 		container_of(fwnode, struct acpi_device, fwnode) : NULL;
 }
 
+static inline bool is_acpi_data_node(struct fwnode_handle *fwnode)
+{
+	return fwnode && fwnode->type == FWNODE_ACPI_DATA;
+}
+
+static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode)
+{
+	return is_acpi_data_node(fwnode) ?
+		container_of(fwnode, struct acpi_data_node, fwnode) : NULL;
+}
+
 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
 {
 	return &adev->fwnode;
diff --git a/include/acpi/acpiosxf.h b/include/acpi/acpiosxf.h
index a54ad1c..fbc2baf 100644
--- a/include/acpi/acpiosxf.h
+++ b/include/acpi/acpiosxf.h
@@ -55,7 +55,8 @@
 	OSL_GLOBAL_LOCK_HANDLER,
 	OSL_NOTIFY_HANDLER,
 	OSL_GPE_HANDLER,
-	OSL_DEBUGGER_THREAD,
+	OSL_DEBUGGER_MAIN_THREAD,
+	OSL_DEBUGGER_EXEC_THREAD,
 	OSL_EC_POLL_HANDLER,
 	OSL_EC_BURST_HANDLER
 } acpi_execute_type;
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index c33eeab..3aaaa86 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -46,7 +46,7 @@
 
 /* Current ACPICA subsystem version in YYYYMMDD format */
 
-#define ACPI_CA_VERSION                 0x20150818
+#define ACPI_CA_VERSION                 0x20150930
 
 #include <acpi/acconfig.h>
 #include <acpi/actypes.h>
@@ -393,15 +393,11 @@
  */
 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_enable(void))
 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_disable(void))
-#ifdef ACPI_FUTURE_USAGE
 ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_subsystem_status(void))
-#endif
 
-#ifdef ACPI_FUTURE_USAGE
 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
 			    acpi_get_system_info(struct acpi_buffer
 						 *ret_buffer))
-#endif
 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
 			     acpi_get_statistics(struct acpi_statistics *stats))
 ACPI_EXTERNAL_RETURN_PTR(const char
@@ -625,11 +621,9 @@
 							       space_id,
 							       acpi_adr_space_handler
 							       handler))
-#ifdef ACPI_FUTURE_USAGE
 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
 			     acpi_install_exception_handler
 			     (acpi_exception_handler handler))
-#endif
 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
 			     acpi_install_interface_handler
 			     (acpi_interface_handler handler))
@@ -750,12 +744,10 @@
 			     acpi_get_current_resources(acpi_handle device,
 							struct acpi_buffer
 							*ret_buffer))
-#ifdef ACPI_FUTURE_USAGE
 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
 			     acpi_get_possible_resources(acpi_handle device,
 							 struct acpi_buffer
 							 *ret_buffer))
-#endif
 ACPI_EXTERNAL_RETURN_STATUS(acpi_status
 			     acpi_get_event_resources(acpi_handle device_handle,
 						      struct acpi_buffer
@@ -844,7 +836,6 @@
 /*
  * ACPI Timer interfaces
  */
-#ifdef ACPI_FUTURE_USAGE
 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
 				acpi_get_timer_resolution(u32 *resolution))
 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_get_timer(u32 *ticks))
@@ -853,7 +844,6 @@
 				acpi_get_timer_duration(u32 start_ticks,
 							u32 end_ticks,
 							u32 *time_elapsed))
-#endif				/* ACPI_FUTURE_USAGE */
 
 /*
  * Error/Warning output
@@ -939,4 +929,6 @@
 					       void **data,
 					       void (*callback)(void *)))
 
+void acpi_set_debugger_thread_id(acpi_thread_id thread_id);
+
 #endif				/* __ACXFACE_H__ */
diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h
index fcd5709..1bb979e 100644
--- a/include/acpi/actbl1.h
+++ b/include/acpi/actbl1.h
@@ -1012,7 +1012,7 @@
 #define ACPI_NFIT_MEM_SAVE_FAILED       (1)	/* 00: Last SAVE to Memory Device failed */
 #define ACPI_NFIT_MEM_RESTORE_FAILED    (1<<1)	/* 01: Last RESTORE from Memory Device failed */
 #define ACPI_NFIT_MEM_FLUSH_FAILED      (1<<2)	/* 02: Platform flush failed */
-#define ACPI_NFIT_MEM_ARMED             (1<<3)	/* 03: Memory Device observed to be not armed */
+#define ACPI_NFIT_MEM_NOT_ARMED         (1<<3)	/* 03: Memory Device is not armed */
 #define ACPI_NFIT_MEM_HEALTH_OBSERVED   (1<<4)	/* 04: Memory Device observed SMART/health events */
 #define ACPI_NFIT_MEM_HEALTH_ENABLED    (1<<5)	/* 05: SMART/health events enabled */
 
diff --git a/include/acpi/platform/acenv.h b/include/acpi/platform/acenv.h
index ec00e2bb..056f245 100644
--- a/include/acpi/platform/acenv.h
+++ b/include/acpi/platform/acenv.h
@@ -142,7 +142,7 @@
 
 #ifdef ACPI_LIBRARY
 #define ACPI_USE_LOCAL_CACHE
-#define ACPI_FUTURE_USAGE
+#define ACPI_FULL_DEBUG
 #endif
 
 /* Common for all ACPICA applications */
@@ -304,11 +304,11 @@
  * multi-threaded if ACPI_APPLICATION is not set.
  */
 #ifndef DEBUGGER_THREADING
-#ifdef ACPI_APPLICATION
-#define DEBUGGER_THREADING          DEBUGGER_SINGLE_THREADED
+#if !defined (ACPI_APPLICATION) || defined (ACPI_EXEC_APP)
+#define DEBUGGER_THREADING          DEBUGGER_MULTI_THREADED
 
 #else
-#define DEBUGGER_THREADING          DEBUGGER_MULTI_THREADED
+#define DEBUGGER_THREADING          DEBUGGER_SINGLE_THREADED
 #endif
 #endif				/* !DEBUGGER_THREADING */
 
diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h
index 74ba46c8..323e5da 100644
--- a/include/acpi/platform/aclinux.h
+++ b/include/acpi/platform/aclinux.h
@@ -63,12 +63,16 @@
 
 #define ACPI_USE_SYSTEM_INTTYPES
 
-/* Compile for reduced hardware mode only with this kernel config */
+/* Kernel specific ACPICA configuration */
 
 #ifdef CONFIG_ACPI_REDUCED_HARDWARE_ONLY
 #define ACPI_REDUCED_HARDWARE 1
 #endif
 
+#ifdef CONFIG_ACPI_DEBUGGER
+#define ACPI_DEBUGGER
+#endif
+
 #include <linux/string.h>
 #include <linux/kernel.h>
 #include <linux/ctype.h>
@@ -151,7 +155,6 @@
  * OSL interfaces used by utilities
  */
 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_redirect_output
-#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_line
 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_name
 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_index
 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_address
diff --git a/include/acpi/platform/aclinuxex.h b/include/acpi/platform/aclinuxex.h
index acedc3f..fd6d70f 100644
--- a/include/acpi/platform/aclinuxex.h
+++ b/include/acpi/platform/aclinuxex.h
@@ -124,6 +124,11 @@
 		lock ? AE_OK : AE_NO_MEMORY; \
 	})
 
+static inline u8 acpi_os_readable(void *pointer, acpi_size length)
+{
+	return TRUE;
+}
+
 /*
  * OSL interfaces added by Linux
  */
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 1781e54..c4bd0e2 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -181,6 +181,16 @@
 #define CPUIDLE_METHOD_OF_TABLES() OF_TABLE(CONFIG_CPU_IDLE, cpuidle_method)
 #define EARLYCON_OF_TABLES()	OF_TABLE(CONFIG_SERIAL_EARLYCON, earlycon)
 
+#ifdef CONFIG_ACPI
+#define ACPI_PROBE_TABLE(name)						\
+	. = ALIGN(8);							\
+	VMLINUX_SYMBOL(__##name##_acpi_probe_table) = .;		\
+	*(__##name##_acpi_probe_table)					\
+	VMLINUX_SYMBOL(__##name##_acpi_probe_table_end) = .;
+#else
+#define ACPI_PROBE_TABLE(name)
+#endif
+
 #define KERNEL_DTB()							\
 	STRUCT_ALIGN();							\
 	VMLINUX_SYMBOL(__dtb_start) = .;				\
@@ -514,6 +524,8 @@
 	CPUIDLE_METHOD_OF_TABLES()					\
 	KERNEL_DTB()							\
 	IRQCHIP_OF_MATCH_TABLE()					\
+	ACPI_PROBE_TABLE(irqchip)					\
+	ACPI_PROBE_TABLE(clksrc)					\
 	EARLYCON_TABLE()						\
 	EARLYCON_OF_TABLES()
 
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index 0f408b0..5340099 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -253,6 +253,7 @@
 	u8 *bytes;
 };
 
+#define DP_REMOTE_I2C_READ_MAX_TRANSACTIONS 4
 struct drm_dp_remote_i2c_read {
 	u8 num_transactions;
 	u8 port_number;
@@ -262,7 +263,7 @@
 		u8 *bytes;
 		u8 no_stop_bit;
 		u8 i2c_transaction_delay;
-	} transactions[4];
+	} transactions[DP_REMOTE_I2C_READ_MAX_TRANSACTIONS];
 	u8 read_i2c_device_id;
 	u8 num_bytes_read;
 };
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 43856d1..51a96a8 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -49,7 +49,7 @@
 	return adev ? adev->handle : NULL;
 }
 
-#define ACPI_COMPANION(dev)		to_acpi_node((dev)->fwnode)
+#define ACPI_COMPANION(dev)		to_acpi_device_node((dev)->fwnode)
 #define ACPI_COMPANION_SET(dev, adev)	set_primary_fwnode(dev, (adev) ? \
 	acpi_fwnode_handle(adev) : NULL)
 #define ACPI_HANDLE(dev)		acpi_device_handle(ACPI_COMPANION(dev))
@@ -69,7 +69,7 @@
 
 static inline bool has_acpi_companion(struct device *dev)
 {
-	return is_acpi_node(dev->fwnode);
+	return is_acpi_device_node(dev->fwnode);
 }
 
 static inline void acpi_preset_companion(struct device *dev,
@@ -131,6 +131,12 @@
 		(!entry) || (unsigned long)entry + sizeof(*entry) > end ||  \
 		((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
 
+struct acpi_subtable_proc {
+	int id;
+	acpi_tbl_entry_handler handler;
+	int count;
+};
+
 char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
 void __acpi_unmap_table(char *map, unsigned long size);
 int early_acpi_boot_init(void);
@@ -146,9 +152,16 @@
 			      struct acpi_table_header *table_header,
 			      int entry_id, unsigned int max_entries);
 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
-				    int entry_id,
-				    acpi_tbl_entry_handler handler,
-				    unsigned int max_entries);
+			      int entry_id,
+			      acpi_tbl_entry_handler handler,
+			      unsigned int max_entries);
+int __init acpi_table_parse_entries(char *id, unsigned long table_size,
+			      int entry_id,
+			      acpi_tbl_entry_handler handler,
+			      unsigned int max_entries);
+int __init acpi_table_parse_entries_array(char *id, unsigned long table_size,
+			      struct acpi_subtable_proc *proc, int proc_num,
+			      unsigned int max_entries);
 int acpi_table_parse_madt(enum acpi_madt_type id,
 			  acpi_tbl_entry_handler handler,
 			  unsigned int max_entries);
@@ -462,7 +475,22 @@
 	return false;
 }
 
-static inline struct acpi_device *to_acpi_node(struct fwnode_handle *fwnode)
+static inline bool is_acpi_device_node(struct fwnode_handle *fwnode)
+{
+	return false;
+}
+
+static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode)
+{
+	return NULL;
+}
+
+static inline bool is_acpi_data_node(struct fwnode_handle *fwnode)
+{
+	return false;
+}
+
+static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode)
 {
 	return NULL;
 }
@@ -744,22 +772,76 @@
 #ifdef CONFIG_ACPI
 int acpi_dev_get_property(struct acpi_device *adev, const char *name,
 			  acpi_object_type type, const union acpi_object **obj);
-int acpi_dev_get_property_array(struct acpi_device *adev, const char *name,
-				acpi_object_type type,
-				const union acpi_object **obj);
-int acpi_dev_get_property_reference(struct acpi_device *adev,
-				    const char *name, size_t index,
-				    struct acpi_reference_args *args);
+int acpi_node_get_property_reference(struct fwnode_handle *fwnode,
+				     const char *name, size_t index,
+				     struct acpi_reference_args *args);
 
-int acpi_dev_prop_get(struct acpi_device *adev, const char *propname,
-		      void **valptr);
+int acpi_node_prop_get(struct fwnode_handle *fwnode, const char *propname,
+		       void **valptr);
 int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname,
 			      enum dev_prop_type proptype, void *val);
+int acpi_node_prop_read(struct fwnode_handle *fwnode, const char *propname,
+		        enum dev_prop_type proptype, void *val, size_t nval);
 int acpi_dev_prop_read(struct acpi_device *adev, const char *propname,
 		       enum dev_prop_type proptype, void *val, size_t nval);
 
-struct acpi_device *acpi_get_next_child(struct device *dev,
-					struct acpi_device *child);
+struct fwnode_handle *acpi_get_next_subnode(struct device *dev,
+					    struct fwnode_handle *subnode);
+
+struct acpi_probe_entry;
+typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *,
+						 struct acpi_probe_entry *);
+
+#define ACPI_TABLE_ID_LEN	5
+
+/**
+ * struct acpi_probe_entry - boot-time probing entry
+ * @id:			ACPI table name
+ * @type:		Optional subtable type to match
+ *			(if @id contains subtables)
+ * @subtable_valid:	Optional callback to check the validity of
+ *			the subtable
+ * @probe_table:	Callback to the driver being probed when table
+ *			match is successful
+ * @probe_subtbl:	Callback to the driver being probed when table and
+ *			subtable match (and optional callback is successful)
+ * @driver_data:	Sideband data provided back to the driver
+ */
+struct acpi_probe_entry {
+	__u8 id[ACPI_TABLE_ID_LEN];
+	__u8 type;
+	acpi_probe_entry_validate_subtbl subtable_valid;
+	union {
+		acpi_tbl_table_handler probe_table;
+		acpi_tbl_entry_handler probe_subtbl;
+	};
+	kernel_ulong_t driver_data;
+};
+
+#define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn)	\
+	static const struct acpi_probe_entry __acpi_probe_##name	\
+		__used __section(__##table##_acpi_probe_table)		\
+		 = {							\
+			.id = table_id,					\
+			.type = subtable,				\
+			.subtable_valid = valid,			\
+			.probe_table = (acpi_tbl_table_handler)fn,	\
+			.driver_data = data, 				\
+		   }
+
+#define ACPI_PROBE_TABLE(name)		__##name##_acpi_probe_table
+#define ACPI_PROBE_TABLE_END(name)	__##name##_acpi_probe_table_end
+
+int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr);
+
+#define acpi_probe_device_table(t)					\
+	({ 								\
+		extern struct acpi_probe_entry ACPI_PROBE_TABLE(t),	\
+			                       ACPI_PROBE_TABLE_END(t);	\
+		__acpi_probe_device_table(&ACPI_PROBE_TABLE(t),		\
+					  (&ACPI_PROBE_TABLE_END(t) -	\
+					   &ACPI_PROBE_TABLE(t)));	\
+	})
 #else
 static inline int acpi_dev_get_property(struct acpi_device *adev,
 					const char *name, acpi_object_type type,
@@ -767,16 +849,17 @@
 {
 	return -ENXIO;
 }
-static inline int acpi_dev_get_property_array(struct acpi_device *adev,
-					      const char *name,
-					      acpi_object_type type,
-					      const union acpi_object **obj)
+
+static inline int acpi_node_get_property_reference(struct fwnode_handle *fwnode,
+				const char *name, const char *cells_name,
+				size_t index, struct acpi_reference_args *args)
 {
 	return -ENXIO;
 }
-static inline int acpi_dev_get_property_reference(struct acpi_device *adev,
-				const char *name, const char *cells_name,
-				size_t index, struct acpi_reference_args *args)
+
+static inline int acpi_node_prop_get(struct fwnode_handle *fwnode,
+				     const char *propname,
+				     void **valptr)
 {
 	return -ENXIO;
 }
@@ -796,6 +879,14 @@
 	return -ENXIO;
 }
 
+static inline int acpi_node_prop_read(struct fwnode_handle *fwnode,
+				      const char *propname,
+				      enum dev_prop_type proptype,
+				      void *val, size_t nval)
+{
+	return -ENXIO;
+}
+
 static inline int acpi_dev_prop_read(struct acpi_device *adev,
 				     const char *propname,
 				     enum dev_prop_type proptype,
@@ -804,12 +895,22 @@
 	return -ENXIO;
 }
 
-static inline struct acpi_device *acpi_get_next_child(struct device *dev,
-						      struct acpi_device *child)
+static inline struct fwnode_handle *acpi_get_next_subnode(struct device *dev,
+						struct fwnode_handle *subnode)
 {
 	return NULL;
 }
 
+#define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, validate, data, fn) \
+	static const void * __acpi_table_##name[]			\
+		__attribute__((unused))					\
+		 = { (void *) table_id,					\
+		     (void *) subtable,					\
+		     (void *) valid,					\
+		     (void *) fn,					\
+		     (void *) data }
+
+#define acpi_probe_device_table(t)	({ int __r = 0; __r;})
 #endif
 
 #endif	/*_LINUX_ACPI_H*/
diff --git a/include/linux/acpi_irq.h b/include/linux/acpi_irq.h
deleted file mode 100644
index f10c872..0000000
--- a/include/linux/acpi_irq.h
+++ /dev/null
@@ -1,10 +0,0 @@
-#ifndef _LINUX_ACPI_IRQ_H
-#define _LINUX_ACPI_IRQ_H
-
-#include <linux/irq.h>
-
-#ifndef acpi_irq_init
-static inline void acpi_irq_init(void) { }
-#endif
-
-#endif /* _LINUX_ACPI_IRQ_H */
diff --git a/include/linux/backing-dev-defs.h b/include/linux/backing-dev-defs.h
index a23209b..1b4d69f 100644
--- a/include/linux/backing-dev-defs.h
+++ b/include/linux/backing-dev-defs.h
@@ -116,6 +116,8 @@
 	struct list_head work_list;
 	struct delayed_work dwork;	/* work item used for writeback */
 
+	struct list_head bdi_node;	/* anchored at bdi->wb_list */
+
 #ifdef CONFIG_CGROUP_WRITEBACK
 	struct percpu_ref refcnt;	/* used only for !root wb's */
 	struct fprop_local_percpu memcg_completions;
@@ -150,6 +152,7 @@
 	atomic_long_t tot_write_bandwidth;
 
 	struct bdi_writeback wb;  /* the root writeback info for this bdi */
+	struct list_head wb_list; /* list of all wbs */
 #ifdef CONFIG_CGROUP_WRITEBACK
 	struct radix_tree_root cgwb_tree; /* radix tree of active cgroup wbs */
 	struct rb_root cgwb_congested_tree; /* their congested states */
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index d5eb4ad1..c85f749 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -19,13 +19,17 @@
 #include <linux/slab.h>
 
 int __must_check bdi_init(struct backing_dev_info *bdi);
-void bdi_destroy(struct backing_dev_info *bdi);
+void bdi_exit(struct backing_dev_info *bdi);
 
 __printf(3, 4)
 int bdi_register(struct backing_dev_info *bdi, struct device *parent,
 		const char *fmt, ...);
 int bdi_register_dev(struct backing_dev_info *bdi, dev_t dev);
+void bdi_unregister(struct backing_dev_info *bdi);
+
 int __must_check bdi_setup_and_register(struct backing_dev_info *, char *);
+void bdi_destroy(struct backing_dev_info *bdi);
+
 void wb_start_writeback(struct bdi_writeback *wb, long nr_pages,
 			bool range_cyclic, enum wb_reason reason);
 void wb_start_background_writeback(struct bdi_writeback *wb);
@@ -408,61 +412,6 @@
 	rcu_read_unlock();
 }
 
-struct wb_iter {
-	int			start_memcg_id;
-	struct radix_tree_iter	tree_iter;
-	void			**slot;
-};
-
-static inline struct bdi_writeback *__wb_iter_next(struct wb_iter *iter,
-						   struct backing_dev_info *bdi)
-{
-	struct radix_tree_iter *titer = &iter->tree_iter;
-
-	WARN_ON_ONCE(!rcu_read_lock_held());
-
-	if (iter->start_memcg_id >= 0) {
-		iter->slot = radix_tree_iter_init(titer, iter->start_memcg_id);
-		iter->start_memcg_id = -1;
-	} else {
-		iter->slot = radix_tree_next_slot(iter->slot, titer, 0);
-	}
-
-	if (!iter->slot)
-		iter->slot = radix_tree_next_chunk(&bdi->cgwb_tree, titer, 0);
-	if (iter->slot)
-		return *iter->slot;
-	return NULL;
-}
-
-static inline struct bdi_writeback *__wb_iter_init(struct wb_iter *iter,
-						   struct backing_dev_info *bdi,
-						   int start_memcg_id)
-{
-	iter->start_memcg_id = start_memcg_id;
-
-	if (start_memcg_id)
-		return __wb_iter_next(iter, bdi);
-	else
-		return &bdi->wb;
-}
-
-/**
- * bdi_for_each_wb - walk all wb's of a bdi in ascending memcg ID order
- * @wb_cur: cursor struct bdi_writeback pointer
- * @bdi: bdi to walk wb's of
- * @iter: pointer to struct wb_iter to be used as iteration buffer
- * @start_memcg_id: memcg ID to start iteration from
- *
- * Iterate @wb_cur through the wb's (bdi_writeback's) of @bdi in ascending
- * memcg ID order starting from @start_memcg_id.  @iter is struct wb_iter
- * to be used as temp storage during iteration.  rcu_read_lock() must be
- * held throughout iteration.
- */
-#define bdi_for_each_wb(wb_cur, bdi, iter, start_memcg_id)		\
-	for ((wb_cur) = __wb_iter_init(iter, bdi, start_memcg_id);	\
-	     (wb_cur); (wb_cur) = __wb_iter_next(iter, bdi))
-
 #else	/* CONFIG_CGROUP_WRITEBACK */
 
 static inline bool inode_cgwb_enabled(struct inode *inode)
@@ -522,14 +471,6 @@
 {
 }
 
-struct wb_iter {
-	int		next_id;
-};
-
-#define bdi_for_each_wb(wb_cur, bdi, iter, start_blkcg_id)		\
-	for ((iter)->next_id = (start_blkcg_id);			\
-	     ({	(wb_cur) = !(iter)->next_id++ ? &(bdi)->wb : NULL; }); )
-
 static inline int inode_congested(struct inode *inode, int cong_bits)
 {
 	return wb_congested(&inode_to_bdi(inode)->wb, cong_bits);
diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h
index 278dd27..7784b59 100644
--- a/include/linux/clocksource.h
+++ b/include/linux/clocksource.h
@@ -246,16 +246,13 @@
 #define CLOCKSOURCE_OF_DECLARE(name, compat, fn) \
 	OF_DECLARE_1(clksrc, name, compat, fn)
 
-#ifdef CONFIG_CLKSRC_OF
-extern void clocksource_of_init(void);
+#ifdef CONFIG_CLKSRC_PROBE
+extern void clocksource_probe(void);
 #else
-static inline void clocksource_of_init(void) {}
+static inline void clocksource_probe(void) {}
 #endif
 
-#ifdef CONFIG_ACPI
-void acpi_generic_timer_init(void);
-#else
-static inline void acpi_generic_timer_init(void) { }
-#endif
+#define CLOCKSOURCE_ACPI_DECLARE(name, table_id, fn)		\
+	ACPI_DECLARE_PROBE_ENTRY(clksrc, name, table_id, 0, NULL, 0, fn)
 
 #endif /* _LINUX_CLOCKSOURCE_H */
diff --git a/include/linux/cma.h b/include/linux/cma.h
index f7ef093..29f9e77 100644
--- a/include/linux/cma.h
+++ b/include/linux/cma.h
@@ -26,6 +26,6 @@
 extern int cma_init_reserved_mem(phys_addr_t base, phys_addr_t size,
 					unsigned int order_per_bit,
 					struct cma **res_cma);
-extern struct page *cma_alloc(struct cma *cma, unsigned int count, unsigned int align);
+extern struct page *cma_alloc(struct cma *cma, size_t count, unsigned int align);
 extern bool cma_release(struct cma *cma, const struct page *pages, unsigned int count);
 #endif
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index dfaa7b3..8efb40e 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -237,12 +237,25 @@
 #define KASAN_ABI_VERSION 3
 #endif
 
+#if GCC_VERSION >= 40902
+/*
+ * Tell the compiler that address safety instrumentation (KASAN)
+ * should not be applied to that function.
+ * Conflicts with inlining: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67368
+ */
+#define __no_sanitize_address __attribute__((no_sanitize_address))
+#endif
+
 #endif	/* gcc version >= 40000 specific checks */
 
 #if !defined(__noclone)
 #define __noclone	/* not needed */
 #endif
 
+#if !defined(__no_sanitize_address)
+#define __no_sanitize_address
+#endif
+
 /*
  * A trick to suppress uninitialized variable warning without generating any
  * code
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index c836eb2..3d78103 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -198,20 +198,46 @@
 
 #include <uapi/linux/types.h>
 
-static __always_inline void __read_once_size(const volatile void *p, void *res, int size)
+#define __READ_ONCE_SIZE						\
+({									\
+	switch (size) {							\
+	case 1: *(__u8 *)res = *(volatile __u8 *)p; break;		\
+	case 2: *(__u16 *)res = *(volatile __u16 *)p; break;		\
+	case 4: *(__u32 *)res = *(volatile __u32 *)p; break;		\
+	case 8: *(__u64 *)res = *(volatile __u64 *)p; break;		\
+	default:							\
+		barrier();						\
+		__builtin_memcpy((void *)res, (const void *)p, size);	\
+		barrier();						\
+	}								\
+})
+
+static __always_inline
+void __read_once_size(const volatile void *p, void *res, int size)
 {
-	switch (size) {
-	case 1: *(__u8 *)res = *(volatile __u8 *)p; break;
-	case 2: *(__u16 *)res = *(volatile __u16 *)p; break;
-	case 4: *(__u32 *)res = *(volatile __u32 *)p; break;
-	case 8: *(__u64 *)res = *(volatile __u64 *)p; break;
-	default:
-		barrier();
-		__builtin_memcpy((void *)res, (const void *)p, size);
-		barrier();
-	}
+	__READ_ONCE_SIZE;
 }
 
+#ifdef CONFIG_KASAN
+/*
+ * This function is not 'inline' because __no_sanitize_address confilcts
+ * with inlining. Attempt to inline it may cause a build failure.
+ * 	https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67368
+ * '__maybe_unused' allows us to avoid defined-but-not-used warnings.
+ */
+static __no_sanitize_address __maybe_unused
+void __read_once_size_nocheck(const volatile void *p, void *res, int size)
+{
+	__READ_ONCE_SIZE;
+}
+#else
+static __always_inline
+void __read_once_size_nocheck(const volatile void *p, void *res, int size)
+{
+	__READ_ONCE_SIZE;
+}
+#endif
+
 static __always_inline void __write_once_size(volatile void *p, void *res, int size)
 {
 	switch (size) {
@@ -248,8 +274,22 @@
  * required ordering.
  */
 
-#define READ_ONCE(x) \
-	({ union { typeof(x) __val; char __c[1]; } __u; __read_once_size(&(x), __u.__c, sizeof(x)); __u.__val; })
+#define __READ_ONCE(x, check)						\
+({									\
+	union { typeof(x) __val; char __c[1]; } __u;			\
+	if (check)							\
+		__read_once_size(&(x), __u.__c, sizeof(x));		\
+	else								\
+		__read_once_size_nocheck(&(x), __u.__c, sizeof(x));	\
+	__u.__val;							\
+})
+#define READ_ONCE(x) __READ_ONCE(x, 1)
+
+/*
+ * Use READ_ONCE_NOCHECK() instead of READ_ONCE() if you need
+ * to hide memory access from KASAN.
+ */
+#define READ_ONCE_NOCHECK(x) __READ_ONCE(x, 0)
 
 #define WRITE_ONCE(x, val) \
 ({							\
diff --git a/include/linux/dma-contiguous.h b/include/linux/dma-contiguous.h
index 569bbd0..fec734d 100644
--- a/include/linux/dma-contiguous.h
+++ b/include/linux/dma-contiguous.h
@@ -111,7 +111,7 @@
 	return ret;
 }
 
-struct page *dma_alloc_from_contiguous(struct device *dev, int count,
+struct page *dma_alloc_from_contiguous(struct device *dev, size_t count,
 				       unsigned int order);
 bool dma_release_from_contiguous(struct device *dev, struct page *pages,
 				 int count);
@@ -144,7 +144,7 @@
 }
 
 static inline
-struct page *dma_alloc_from_contiguous(struct device *dev, int count,
+struct page *dma_alloc_from_contiguous(struct device *dev, size_t count,
 				       unsigned int order)
 {
 	return NULL;
diff --git a/include/linux/fwnode.h b/include/linux/fwnode.h
index 0408545..b08d6ba 100644
--- a/include/linux/fwnode.h
+++ b/include/linux/fwnode.h
@@ -16,6 +16,7 @@
 	FWNODE_INVALID = 0,
 	FWNODE_OF,
 	FWNODE_ACPI,
+	FWNODE_ACPI_DATA,
 	FWNODE_PDATA,
 };
 
diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index 388e3ae..24bea08 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -94,6 +94,7 @@
 /* PnP I/O specific bits (IORESOURCE_BITS) */
 #define IORESOURCE_IO_16BIT_ADDR	(1<<0)
 #define IORESOURCE_IO_FIXED		(1<<1)
+#define IORESOURCE_IO_SPARSE		(1<<2)
 
 /* PCI ROM control bits (IORESOURCE_BITS) */
 #define IORESOURCE_ROM_ENABLE		(1<<0)	/* ROM is enabled, same as PCI_ROM_ADDRESS_ENABLE */
diff --git a/include/linux/irqchip.h b/include/linux/irqchip.h
index 6388873..89c34b2 100644
--- a/include/linux/irqchip.h
+++ b/include/linux/irqchip.h
@@ -11,6 +11,7 @@
 #ifndef _LINUX_IRQCHIP_H
 #define _LINUX_IRQCHIP_H
 
+#include <linux/acpi.h>
 #include <linux/of.h>
 
 /*
@@ -25,6 +26,22 @@
  */
 #define IRQCHIP_DECLARE(name, compat, fn) OF_DECLARE_2(irqchip, name, compat, fn)
 
+/*
+ * This macro must be used by the different irqchip drivers to declare
+ * the association between their version and their initialization function.
+ *
+ * @name: name that must be unique accross all IRQCHIP_ACPI_DECLARE of the
+ * same file.
+ * @subtable: Subtable to be identified in MADT
+ * @validate: Function to be called on that subtable to check its validity.
+ *            Can be NULL.
+ * @data: data to be checked by the validate function.
+ * @fn: initialization function
+ */
+#define IRQCHIP_ACPI_DECLARE(name, subtable, validate, data, fn)	\
+	ACPI_DECLARE_PROBE_ENTRY(irqchip, name, ACPI_SIG_MADT, 		\
+				 subtable, validate, data, fn)
+
 #ifdef CONFIG_IRQCHIP
 void irqchip_init(void);
 #else
diff --git a/include/linux/irqchip/arm-gic-acpi.h b/include/linux/irqchip/arm-gic-acpi.h
deleted file mode 100644
index de3419e..0000000
--- a/include/linux/irqchip/arm-gic-acpi.h
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * Copyright (C) 2014, Linaro Ltd.
- *	Author: Tomasz Nowicki <tomasz.nowicki@linaro.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef ARM_GIC_ACPI_H_
-#define ARM_GIC_ACPI_H_
-
-#ifdef CONFIG_ACPI
-
-/*
- * Hard code here, we can not get memory size from MADT (but FDT does),
- * Actually no need to do that, because this size can be inferred
- * from GIC spec.
- */
-#define ACPI_GICV2_DIST_MEM_SIZE	(SZ_4K)
-#define ACPI_GIC_CPU_IF_MEM_SIZE	(SZ_8K)
-
-struct acpi_table_header;
-
-int gic_v2_acpi_init(struct acpi_table_header *table);
-void acpi_gic_init(void);
-#else
-static inline void acpi_gic_init(void) { }
-#endif
-
-#endif /* ARM_GIC_ACPI_H_ */
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 6452ff4..3e3318dd 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -676,8 +676,9 @@
 
 struct list_head *mem_cgroup_cgwb_list(struct mem_cgroup *memcg);
 struct wb_domain *mem_cgroup_wb_domain(struct bdi_writeback *wb);
-void mem_cgroup_wb_stats(struct bdi_writeback *wb, unsigned long *pavail,
-			 unsigned long *pdirty, unsigned long *pwriteback);
+void mem_cgroup_wb_stats(struct bdi_writeback *wb, unsigned long *pfilepages,
+			 unsigned long *pheadroom, unsigned long *pdirty,
+			 unsigned long *pwriteback);
 
 #else	/* CONFIG_CGROUP_WRITEBACK */
 
@@ -687,7 +688,8 @@
 }
 
 static inline void mem_cgroup_wb_stats(struct bdi_writeback *wb,
-				       unsigned long *pavail,
+				       unsigned long *pfilepages,
+				       unsigned long *pheadroom,
 				       unsigned long *pdirty,
 				       unsigned long *pwriteback)
 {
diff --git a/include/linux/pci-acpi.h b/include/linux/pci-acpi.h
index a965efa..89ab057 100644
--- a/include/linux/pci-acpi.h
+++ b/include/linux/pci-acpi.h
@@ -52,6 +52,30 @@
 	return ACPI_HANDLE(dev);
 }
 
+struct acpi_pci_root;
+struct acpi_pci_root_ops;
+
+struct acpi_pci_root_info {
+	struct acpi_pci_root		*root;
+	struct acpi_device		*bridge;
+	struct acpi_pci_root_ops	*ops;
+	struct list_head		resources;
+	char				name[16];
+};
+
+struct acpi_pci_root_ops {
+	struct pci_ops *pci_ops;
+	int (*init_info)(struct acpi_pci_root_info *info);
+	void (*release_info)(struct acpi_pci_root_info *info);
+	int (*prepare_resources)(struct acpi_pci_root_info *info);
+};
+
+extern int acpi_pci_probe_root_resources(struct acpi_pci_root_info *info);
+extern struct pci_bus *acpi_pci_root_create(struct acpi_pci_root *root,
+					    struct acpi_pci_root_ops *ops,
+					    struct acpi_pci_root_info *info,
+					    void *sd);
+
 void acpi_pci_add_bus(struct pci_bus *bus);
 void acpi_pci_remove_bus(struct pci_bus *bus);
 
diff --git a/include/linux/property.h b/include/linux/property.h
index a59c6ee..463de52 100644
--- a/include/linux/property.h
+++ b/include/linux/property.h
@@ -40,6 +40,8 @@
 				      const char **val, size_t nval);
 int device_property_read_string(struct device *dev, const char *propname,
 				const char **val);
+int device_property_match_string(struct device *dev,
+				 const char *propname, const char *string);
 
 bool fwnode_property_present(struct fwnode_handle *fwnode, const char *propname);
 int fwnode_property_read_u8_array(struct fwnode_handle *fwnode,
@@ -59,6 +61,8 @@
 				      size_t nval);
 int fwnode_property_read_string(struct fwnode_handle *fwnode,
 				const char *propname, const char **val);
+int fwnode_property_match_string(struct fwnode_handle *fwnode,
+				 const char *propname, const char *string);
 
 struct fwnode_handle *device_get_next_child_node(struct device *dev,
 						 struct fwnode_handle *child);
diff --git a/include/net/af_unix.h b/include/net/af_unix.h
index cb1b9bb..b36d837 100644
--- a/include/net/af_unix.h
+++ b/include/net/af_unix.h
@@ -64,7 +64,7 @@
 	struct socket_wq	peer_wq;
 };
 
-static inline struct unix_sock *unix_sk(struct sock *sk)
+static inline struct unix_sock *unix_sk(const struct sock *sk)
 {
 	return (struct unix_sock *)sk;
 }
diff --git a/include/net/inet_timewait_sock.h b/include/net/inet_timewait_sock.h
index 186f3a1..fc19376 100644
--- a/include/net/inet_timewait_sock.h
+++ b/include/net/inet_timewait_sock.h
@@ -113,12 +113,12 @@
 void __inet_twsk_schedule(struct inet_timewait_sock *tw, int timeo,
 			  bool rearm);
 
-static void inline inet_twsk_schedule(struct inet_timewait_sock *tw, int timeo)
+static inline void inet_twsk_schedule(struct inet_timewait_sock *tw, int timeo)
 {
 	__inet_twsk_schedule(tw, timeo, false);
 }
 
-static void inline inet_twsk_reschedule(struct inet_timewait_sock *tw, int timeo)
+static inline void inet_twsk_reschedule(struct inet_timewait_sock *tw, int timeo)
 {
 	__inet_twsk_schedule(tw, timeo, true);
 }
diff --git a/include/net/sock.h b/include/net/sock.h
index 7aa7844..e237170 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -828,6 +828,14 @@
 	if (sk_rcvqueues_full(sk, limit))
 		return -ENOBUFS;
 
+	/*
+	 * If the skb was allocated from pfmemalloc reserves, only
+	 * allow SOCK_MEMALLOC sockets to use it as this socket is
+	 * helping free memory
+	 */
+	if (skb_pfmemalloc(skb) && !sock_flag(sk, SOCK_MEMALLOC))
+		return -ENOMEM;
+
 	__sk_add_backlog(sk, skb);
 	sk->sk_backlog.len += skb->truesize;
 	return 0;
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 884e728..26ede14 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -86,7 +86,7 @@
 	.access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 	SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 	.tlv.p  = (tlv_array),\
-	.info = snd_soc_info_volsw, \
+	.info = snd_soc_info_volsw_sx, \
 	.get = snd_soc_get_volsw_sx,\
 	.put = snd_soc_put_volsw_sx, \
 	.private_value = (unsigned long)&(struct soc_mixer_control) \
@@ -156,7 +156,7 @@
 	.access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 	SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 	.tlv.p  = (tlv_array), \
-	.info = snd_soc_info_volsw, \
+	.info = snd_soc_info_volsw_sx, \
 	.get = snd_soc_get_volsw_sx, \
 	.put = snd_soc_put_volsw_sx, \
 	.private_value = (unsigned long)&(struct soc_mixer_control) \
@@ -574,6 +574,8 @@
 	struct snd_ctl_elem_value *ucontrol);
 int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
 	struct snd_ctl_elem_info *uinfo);
+int snd_soc_info_volsw_sx(struct snd_kcontrol *kcontrol,
+			  struct snd_ctl_elem_info *uinfo);
 #define snd_soc_info_bool_ext		snd_ctl_boolean_mono_info
 int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
 	struct snd_ctl_elem_value *ucontrol);
diff --git a/include/sound/wm8904.h b/include/sound/wm8904.h
index 898be3a..6d8f8fb 100644
--- a/include/sound/wm8904.h
+++ b/include/sound/wm8904.h
@@ -119,7 +119,7 @@
 #define WM8904_MIC_REGS  2
 #define WM8904_GPIO_REGS 4
 #define WM8904_DRC_REGS  4
-#define WM8904_EQ_REGS   25
+#define WM8904_EQ_REGS   24
 
 /**
  * DRC configurations are specified with a label and a set of register
diff --git a/include/uapi/asm-generic/signal.h b/include/uapi/asm-generic/signal.h
index 9df61f1..3094618 100644
--- a/include/uapi/asm-generic/signal.h
+++ b/include/uapi/asm-generic/signal.h
@@ -80,8 +80,10 @@
  *	SA_RESTORER	0x04000000
  */
 
+#if !defined MINSIGSTKSZ || !defined SIGSTKSZ
 #define MINSIGSTKSZ	2048
 #define SIGSTKSZ	8192
+#endif
 
 #ifndef __ASSEMBLY__
 typedef struct {
diff --git a/include/uapi/linux/openvswitch.h b/include/uapi/linux/openvswitch.h
index 32e07d8..036f73b 100644
--- a/include/uapi/linux/openvswitch.h
+++ b/include/uapi/linux/openvswitch.h
@@ -323,10 +323,10 @@
 	OVS_KEY_ATTR_MPLS,      /* array of struct ovs_key_mpls.
 				 * The implementation may restrict
 				 * the accepted length of the array. */
-	OVS_KEY_ATTR_CT_STATE,	/* u8 bitmask of OVS_CS_F_* */
+	OVS_KEY_ATTR_CT_STATE,	/* u32 bitmask of OVS_CS_F_* */
 	OVS_KEY_ATTR_CT_ZONE,	/* u16 connection tracking zone. */
 	OVS_KEY_ATTR_CT_MARK,	/* u32 connection tracking mark */
-	OVS_KEY_ATTR_CT_LABEL,	/* 16-octet connection tracking label */
+	OVS_KEY_ATTR_CT_LABELS,	/* 16-octet connection tracking label */
 
 #ifdef __KERNEL__
 	OVS_KEY_ATTR_TUNNEL_INFO,  /* struct ip_tunnel_info */
@@ -439,9 +439,9 @@
 	__u8	nd_tll[ETH_ALEN];
 };
 
-#define OVS_CT_LABEL_LEN	16
-struct ovs_key_ct_label {
-	__u8	ct_label[OVS_CT_LABEL_LEN];
+#define OVS_CT_LABELS_LEN	16
+struct ovs_key_ct_labels {
+	__u8	ct_labels[OVS_CT_LABELS_LEN];
 };
 
 /* OVS_KEY_ATTR_CT_STATE flags */
@@ -449,9 +449,9 @@
 #define OVS_CS_F_ESTABLISHED       0x02 /* Part of an existing connection. */
 #define OVS_CS_F_RELATED           0x04 /* Related to an established
 					 * connection. */
-#define OVS_CS_F_INVALID           0x20 /* Could not track connection. */
-#define OVS_CS_F_REPLY_DIR         0x40 /* Flow is in the reply direction. */
-#define OVS_CS_F_TRACKED           0x80 /* Conntrack has occurred. */
+#define OVS_CS_F_REPLY_DIR         0x08 /* Flow is in the reply direction. */
+#define OVS_CS_F_INVALID           0x10 /* Could not track connection. */
+#define OVS_CS_F_TRACKED           0x20 /* Conntrack has occurred. */
 
 /**
  * enum ovs_flow_attr - attributes for %OVS_FLOW_* commands.
@@ -618,22 +618,24 @@
 
 /**
  * enum ovs_ct_attr - Attributes for %OVS_ACTION_ATTR_CT action.
- * @OVS_CT_ATTR_FLAGS: u32 connection tracking flags.
+ * @OVS_CT_ATTR_COMMIT: If present, commits the connection to the conntrack
+ * table. This allows future packets for the same connection to be identified
+ * as 'established' or 'related'.
  * @OVS_CT_ATTR_ZONE: u16 connection tracking zone.
  * @OVS_CT_ATTR_MARK: u32 value followed by u32 mask. For each bit set in the
  * mask, the corresponding bit in the value is copied to the connection
  * tracking mark field in the connection.
- * @OVS_CT_ATTR_LABEL: %OVS_CT_LABEL_LEN value followed by %OVS_CT_LABEL_LEN
+ * @OVS_CT_ATTR_LABEL: %OVS_CT_LABELS_LEN value followed by %OVS_CT_LABELS_LEN
  * mask. For each bit set in the mask, the corresponding bit in the value is
  * copied to the connection tracking label field in the connection.
  * @OVS_CT_ATTR_HELPER: variable length string defining conntrack ALG.
  */
 enum ovs_ct_attr {
 	OVS_CT_ATTR_UNSPEC,
-	OVS_CT_ATTR_FLAGS,      /* u8 bitmask of OVS_CT_F_*. */
+	OVS_CT_ATTR_COMMIT,     /* No argument, commits connection. */
 	OVS_CT_ATTR_ZONE,       /* u16 zone id. */
 	OVS_CT_ATTR_MARK,       /* mark to associate with this connection. */
-	OVS_CT_ATTR_LABEL,      /* label to associate with this connection. */
+	OVS_CT_ATTR_LABELS,     /* labels to associate with this connection. */
 	OVS_CT_ATTR_HELPER,     /* netlink helper to assist detection of
 				   related connections. */
 	__OVS_CT_ATTR_MAX
@@ -641,14 +643,6 @@
 
 #define OVS_CT_ATTR_MAX (__OVS_CT_ATTR_MAX - 1)
 
-/*
- * OVS_CT_ATTR_FLAGS flags - bitmask of %OVS_CT_F_*
- * @OVS_CT_F_COMMIT: Commits the flow to the conntrack table. This allows
- * future packets for the same connection to be identified as 'established'
- * or 'related'.
- */
-#define OVS_CT_F_COMMIT		0x01
-
 /**
  * enum ovs_action_attr - Action types.
  *
@@ -705,7 +699,7 @@
 				       * data immediately followed by a mask.
 				       * The data must be zero for the unmasked
 				       * bits. */
-	OVS_ACTION_ATTR_CT,           /* One nested OVS_CT_ATTR_* . */
+	OVS_ACTION_ATTR_CT,           /* Nested OVS_CT_ATTR_* . */
 
 	__OVS_ACTION_ATTR_MAX,	      /* Nothing past this will be accepted
 				       * from userspace. */
diff --git a/include/uapi/linux/rtnetlink.h b/include/uapi/linux/rtnetlink.h
index 7020247..9d8f5d1 100644
--- a/include/uapi/linux/rtnetlink.h
+++ b/include/uapi/linux/rtnetlink.h
@@ -160,7 +160,7 @@
 
 /* Macros to handle rtattributes */
 
-#define RTA_ALIGNTO	4
+#define RTA_ALIGNTO	4U
 #define RTA_ALIGN(len) ( ((len)+RTA_ALIGNTO-1) & ~(RTA_ALIGNTO-1) )
 #define RTA_OK(rta,len) ((len) >= (int)sizeof(struct rtattr) && \
 			 (rta)->rta_len >= sizeof(struct rtattr) && \
diff --git a/kernel/irq/msi.c b/kernel/irq/msi.c
index 7e6512b..be9149f6 100644
--- a/kernel/irq/msi.c
+++ b/kernel/irq/msi.c
@@ -228,11 +228,7 @@
 {
 	struct irq_chip *chip = info->chip;
 
-	BUG_ON(!chip);
-	if (!chip->irq_mask)
-		chip->irq_mask = pci_msi_mask_irq;
-	if (!chip->irq_unmask)
-		chip->irq_unmask = pci_msi_unmask_irq;
+	BUG_ON(!chip || !chip->irq_mask || !chip->irq_unmask);
 	if (!chip->irq_set_affinity)
 		chip->irq_set_affinity = msi_domain_set_affinity;
 }
diff --git a/kernel/kmod.c b/kernel/kmod.c
index da98d05..0277d12 100644
--- a/kernel/kmod.c
+++ b/kernel/kmod.c
@@ -327,9 +327,13 @@
 		call_usermodehelper_exec_sync(sub_info);
 	} else {
 		pid_t pid;
-
+		/*
+		 * Use CLONE_PARENT to reparent it to kthreadd; we do not
+		 * want to pollute current->children, and we need a parent
+		 * that always ignores SIGCHLD to ensure auto-reaping.
+		 */
 		pid = kernel_thread(call_usermodehelper_exec_async, sub_info,
-				    SIGCHLD);
+				    CLONE_PARENT | SIGCHLD);
 		if (pid < 0) {
 			sub_info->retval = pid;
 			umh_complete(sub_info);
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 10a8faa..bcd214e 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -2366,8 +2366,15 @@
 	trace_sched_wakeup_new(p);
 	check_preempt_curr(rq, p, WF_FORK);
 #ifdef CONFIG_SMP
-	if (p->sched_class->task_woken)
+	if (p->sched_class->task_woken) {
+		/*
+		 * Nothing relies on rq->lock after this, so its fine to
+		 * drop it.
+		 */
+		lockdep_unpin_lock(&rq->lock);
 		p->sched_class->task_woken(rq, p);
+		lockdep_pin_lock(&rq->lock);
+	}
 #endif
 	task_rq_unlock(rq, p, &flags);
 }
@@ -7238,9 +7245,6 @@
 	alloc_cpumask_var(&non_isolated_cpus, GFP_KERNEL);
 	alloc_cpumask_var(&fallback_doms, GFP_KERNEL);
 
-	/* nohz_full won't take effect without isolating the cpus. */
-	tick_nohz_full_add_cpus_to(cpu_isolated_map);
-
 	sched_init_numa();
 
 	/*
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index fc8f010..8b0a15e 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -668,8 +668,15 @@
 	 * Queueing this task back might have overloaded rq, check if we need
 	 * to kick someone away.
 	 */
-	if (has_pushable_dl_tasks(rq))
+	if (has_pushable_dl_tasks(rq)) {
+		/*
+		 * Nothing relies on rq->lock after this, so its safe to drop
+		 * rq->lock.
+		 */
+		lockdep_unpin_lock(&rq->lock);
 		push_dl_task(rq);
+		lockdep_pin_lock(&rq->lock);
+	}
 #endif
 
 unlock:
@@ -1066,8 +1073,9 @@
 		int target = find_later_rq(p);
 
 		if (target != -1 &&
-				dl_time_before(p->dl.deadline,
-					cpu_rq(target)->dl.earliest_dl.curr))
+				(dl_time_before(p->dl.deadline,
+					cpu_rq(target)->dl.earliest_dl.curr) ||
+				(cpu_rq(target)->dl.dl_nr_running == 0)))
 			cpu = target;
 	}
 	rcu_read_unlock();
@@ -1417,7 +1425,8 @@
 
 		later_rq = cpu_rq(cpu);
 
-		if (!dl_time_before(task->dl.deadline,
+		if (later_rq->dl.dl_nr_running &&
+		    !dl_time_before(task->dl.deadline,
 					later_rq->dl.earliest_dl.curr)) {
 			/*
 			 * Target rq has tasks of equal or earlier deadline,
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 6e2e348..9a5e60f 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -2363,7 +2363,7 @@
 	 */
 	tg_weight = atomic_long_read(&tg->load_avg);
 	tg_weight -= cfs_rq->tg_load_avg_contrib;
-	tg_weight += cfs_rq_load_avg(cfs_rq);
+	tg_weight += cfs_rq->load.weight;
 
 	return tg_weight;
 }
@@ -2373,7 +2373,7 @@
 	long tg_weight, load, shares;
 
 	tg_weight = calc_tg_weight(tg, cfs_rq);
-	load = cfs_rq_load_avg(cfs_rq);
+	load = cfs_rq->load.weight;
 
 	shares = (tg->shares * load);
 	if (tg_weight)
@@ -2664,13 +2664,14 @@
 /* Group cfs_rq's load_avg is used for task_h_load and update_cfs_share */
 static inline int update_cfs_rq_load_avg(u64 now, struct cfs_rq *cfs_rq)
 {
-	int decayed;
 	struct sched_avg *sa = &cfs_rq->avg;
+	int decayed, removed = 0;
 
 	if (atomic_long_read(&cfs_rq->removed_load_avg)) {
 		long r = atomic_long_xchg(&cfs_rq->removed_load_avg, 0);
 		sa->load_avg = max_t(long, sa->load_avg - r, 0);
 		sa->load_sum = max_t(s64, sa->load_sum - r * LOAD_AVG_MAX, 0);
+		removed = 1;
 	}
 
 	if (atomic_long_read(&cfs_rq->removed_util_avg)) {
@@ -2688,7 +2689,7 @@
 	cfs_rq->load_last_update_time_copy = sa->last_update_time;
 #endif
 
-	return decayed;
+	return decayed || removed;
 }
 
 /* Update task and its cfs_rq load average */
diff --git a/kernel/sched/idle.c b/kernel/sched/idle.c
index 8f177c7..4a2ef5a 100644
--- a/kernel/sched/idle.c
+++ b/kernel/sched/idle.c
@@ -57,9 +57,11 @@
 	rcu_idle_enter();
 	trace_cpu_idle_rcuidle(0, smp_processor_id());
 	local_irq_enable();
+	stop_critical_timings();
 	while (!tif_need_resched() &&
 		(cpu_idle_force_poll || tick_check_broadcast_expired()))
 		cpu_relax();
+	start_critical_timings();
 	trace_cpu_idle_rcuidle(PWR_EVENT_EXIT, smp_processor_id());
 	rcu_idle_exit();
 	return 1;
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 3739ac6..44d2cc0 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -1251,7 +1251,7 @@
 	set_normalized_timespec64(&tmp, -boot.tv_sec, -boot.tv_nsec);
 	tk_set_wall_to_mono(tk, tmp);
 
-	timekeeping_update(tk, TK_MIRROR);
+	timekeeping_update(tk, TK_MIRROR | TK_CLOCK_WAS_SET);
 
 	write_seqcount_end(&tk_core.seq);
 	raw_spin_unlock_irqrestore(&timekeeper_lock, flags);
diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c
index b746399..8abf1ba 100644
--- a/kernel/trace/trace_stack.c
+++ b/kernel/trace/trace_stack.c
@@ -85,9 +85,19 @@
 	if (!object_is_on_stack(stack))
 		return;
 
+	/* Can't do this from NMI context (can cause deadlocks) */
+	if (in_nmi())
+		return;
+
 	local_irq_save(flags);
 	arch_spin_lock(&max_stack_lock);
 
+	/*
+	 * RCU may not be watching, make it see us.
+	 * The stack trace code uses rcu_sched.
+	 */
+	rcu_irq_enter();
+
 	/* In case another CPU set the tracer_frame on us */
 	if (unlikely(!frame_size))
 		this_size -= tracer_frame;
@@ -169,6 +179,7 @@
 	}
 
  out:
+	rcu_irq_exit();
 	arch_spin_unlock(&max_stack_lock);
 	local_irq_restore(flags);
 }
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index ca71582..bcb14ca 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -1458,13 +1458,13 @@
 	timer_stats_timer_set_start_info(&dwork->timer);
 
 	dwork->wq = wq;
+	/* timer isn't guaranteed to run in this cpu, record earlier */
+	if (cpu == WORK_CPU_UNBOUND)
+		cpu = raw_smp_processor_id();
 	dwork->cpu = cpu;
 	timer->expires = jiffies + delay;
 
-	if (unlikely(cpu != WORK_CPU_UNBOUND))
-		add_timer_on(timer, cpu);
-	else
-		add_timer(timer);
+	add_timer_on(timer, cpu);
 }
 
 /**
diff --git a/lib/Kconfig b/lib/Kconfig
index 2e491ac..f0df318 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -220,6 +220,7 @@
 
 config ZLIB_DEFLATE
 	tristate
+	select BITREVERSE
 
 config LZO_COMPRESS
 	tristate
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index ab76b99..1d1521c 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -197,6 +197,7 @@
 config FRAME_WARN
 	int "Warn for stack frames larger than (needs gcc 4.4)"
 	range 0 8192
+	default 0 if KASAN
 	default 1024 if !64BIT
 	default 2048 if 64BIT
 	help
diff --git a/lib/fault-inject.c b/lib/fault-inject.c
index f1cdeb0..6a823a5 100644
--- a/lib/fault-inject.c
+++ b/lib/fault-inject.c
@@ -44,7 +44,7 @@
 		printk(KERN_NOTICE "FAULT_INJECTION: forcing a failure.\n"
 		       "name %pd, interval %lu, probability %lu, "
 		       "space %d, times %d\n", attr->dname,
-		       attr->probability, attr->interval,
+		       attr->interval, attr->probability,
 		       atomic_read(&attr->space),
 		       atomic_read(&attr->times));
 		if (attr->verbose > 1)
diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index 2df8ddc..619984f 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -480,6 +480,10 @@
 						release_work);
 	struct backing_dev_info *bdi = wb->bdi;
 
+	spin_lock_irq(&cgwb_lock);
+	list_del_rcu(&wb->bdi_node);
+	spin_unlock_irq(&cgwb_lock);
+
 	wb_shutdown(wb);
 
 	css_put(wb->memcg_css);
@@ -575,6 +579,7 @@
 		ret = radix_tree_insert(&bdi->cgwb_tree, memcg_css->id, wb);
 		if (!ret) {
 			atomic_inc(&bdi->usage_cnt);
+			list_add_tail_rcu(&wb->bdi_node, &bdi->wb_list);
 			list_add(&wb->memcg_node, memcg_cgwb_list);
 			list_add(&wb->blkcg_node, blkcg_cgwb_list);
 			css_get(memcg_css);
@@ -676,7 +681,7 @@
 static void cgwb_bdi_destroy(struct backing_dev_info *bdi)
 {
 	struct radix_tree_iter iter;
-	struct bdi_writeback_congested *congested, *congested_n;
+	struct rb_node *rbn;
 	void **slot;
 
 	WARN_ON(test_bit(WB_registered, &bdi->wb.state));
@@ -686,9 +691,11 @@
 	radix_tree_for_each_slot(slot, &bdi->cgwb_tree, &iter, 0)
 		cgwb_kill(*slot);
 
-	rbtree_postorder_for_each_entry_safe(congested, congested_n,
-					&bdi->cgwb_congested_tree, rb_node) {
-		rb_erase(&congested->rb_node, &bdi->cgwb_congested_tree);
+	while ((rbn = rb_first(&bdi->cgwb_congested_tree))) {
+		struct bdi_writeback_congested *congested =
+			rb_entry(rbn, struct bdi_writeback_congested, rb_node);
+
+		rb_erase(rbn, &bdi->cgwb_congested_tree);
 		congested->bdi = NULL;	/* mark @congested unlinked */
 	}
 
@@ -764,15 +771,22 @@
 
 int bdi_init(struct backing_dev_info *bdi)
 {
+	int ret;
+
 	bdi->dev = NULL;
 
 	bdi->min_ratio = 0;
 	bdi->max_ratio = 100;
 	bdi->max_prop_frac = FPROP_FRAC_BASE;
 	INIT_LIST_HEAD(&bdi->bdi_list);
+	INIT_LIST_HEAD(&bdi->wb_list);
 	init_waitqueue_head(&bdi->wb_waitq);
 
-	return cgwb_bdi_init(bdi);
+	ret = cgwb_bdi_init(bdi);
+
+	list_add_tail_rcu(&bdi->wb.bdi_node, &bdi->wb_list);
+
+	return ret;
 }
 EXPORT_SYMBOL(bdi_init);
 
@@ -823,7 +837,7 @@
 	synchronize_rcu_expedited();
 }
 
-void bdi_destroy(struct backing_dev_info *bdi)
+void bdi_unregister(struct backing_dev_info *bdi)
 {
 	/* make sure nobody finds us on the bdi_list anymore */
 	bdi_remove_from_list(bdi);
@@ -835,9 +849,19 @@
 		device_unregister(bdi->dev);
 		bdi->dev = NULL;
 	}
+}
 
+void bdi_exit(struct backing_dev_info *bdi)
+{
+	WARN_ON_ONCE(bdi->dev);
 	wb_exit(&bdi->wb);
 }
+
+void bdi_destroy(struct backing_dev_info *bdi)
+{
+	bdi_unregister(bdi);
+	bdi_exit(bdi);
+}
 EXPORT_SYMBOL(bdi_destroy);
 
 /*
diff --git a/mm/cma.c b/mm/cma.c
index e7d1db5..4eb56ba 100644
--- a/mm/cma.c
+++ b/mm/cma.c
@@ -361,7 +361,7 @@
  * This function allocates part of contiguous memory on specific
  * contiguous memory area.
  */
-struct page *cma_alloc(struct cma *cma, unsigned int count, unsigned int align)
+struct page *cma_alloc(struct cma *cma, size_t count, unsigned int align)
 {
 	unsigned long mask, offset, pfn, start = 0;
 	unsigned long bitmap_maxno, bitmap_no, bitmap_count;
@@ -371,7 +371,7 @@
 	if (!cma || !cma->count)
 		return NULL;
 
-	pr_debug("%s(cma %p, count %d, align %d)\n", __func__, (void *)cma,
+	pr_debug("%s(cma %p, count %zu, align %d)\n", __func__, (void *)cma,
 		 count, align);
 
 	if (!count)
diff --git a/mm/filemap.c b/mm/filemap.c
index 1cc5467..327910c 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -2488,6 +2488,11 @@
 			break;
 		}
 
+		if (fatal_signal_pending(current)) {
+			status = -EINTR;
+			break;
+		}
+
 		status = a_ops->write_begin(file, mapping, pos, bytes, flags,
 						&page, &fsdata);
 		if (unlikely(status < 0))
@@ -2525,10 +2530,6 @@
 		written += copied;
 
 		balance_dirty_pages_ratelimited(mapping);
-		if (fatal_signal_pending(current)) {
-			status = -EINTR;
-			break;
-		}
 	} while (iov_iter_count(i));
 
 	return written ? written : status;
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 4b06b8d..bbac913 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -2206,7 +2206,8 @@
 	for (_pte = pte; _pte < pte+HPAGE_PMD_NR;
 	     _pte++, address += PAGE_SIZE) {
 		pte_t pteval = *_pte;
-		if (pte_none(pteval) || is_zero_pfn(pte_pfn(pteval))) {
+		if (pte_none(pteval) || (pte_present(pteval) &&
+				is_zero_pfn(pte_pfn(pteval)))) {
 			if (!userfaultfd_armed(vma) &&
 			    ++none_or_zero <= khugepaged_max_ptes_none)
 				continue;
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 1fedbde..c57c442 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -3387,6 +3387,7 @@
 	ret = page_counter_memparse(args, "-1", &threshold);
 	if (ret)
 		return ret;
+	threshold <<= PAGE_SHIFT;
 
 	mutex_lock(&memcg->thresholds_lock);
 
@@ -3740,44 +3741,43 @@
 /**
  * mem_cgroup_wb_stats - retrieve writeback related stats from its memcg
  * @wb: bdi_writeback in question
- * @pavail: out parameter for number of available pages
+ * @pfilepages: out parameter for number of file pages
+ * @pheadroom: out parameter for number of allocatable pages according to memcg
  * @pdirty: out parameter for number of dirty pages
  * @pwriteback: out parameter for number of pages under writeback
  *
- * Determine the numbers of available, dirty, and writeback pages in @wb's
- * memcg.  Dirty and writeback are self-explanatory.  Available is a bit
- * more involved.
+ * Determine the numbers of file, headroom, dirty, and writeback pages in
+ * @wb's memcg.  File, dirty and writeback are self-explanatory.  Headroom
+ * is a bit more involved.
  *
- * A memcg's headroom is "min(max, high) - used".  The available memory is
- * calculated as the lowest headroom of itself and the ancestors plus the
- * number of pages already being used for file pages.  Note that this
- * doesn't consider the actual amount of available memory in the system.
- * The caller should further cap *@pavail accordingly.
+ * A memcg's headroom is "min(max, high) - used".  In the hierarchy, the
+ * headroom is calculated as the lowest headroom of itself and the
+ * ancestors.  Note that this doesn't consider the actual amount of
+ * available memory in the system.  The caller should further cap
+ * *@pheadroom accordingly.
  */
-void mem_cgroup_wb_stats(struct bdi_writeback *wb, unsigned long *pavail,
-			 unsigned long *pdirty, unsigned long *pwriteback)
+void mem_cgroup_wb_stats(struct bdi_writeback *wb, unsigned long *pfilepages,
+			 unsigned long *pheadroom, unsigned long *pdirty,
+			 unsigned long *pwriteback)
 {
 	struct mem_cgroup *memcg = mem_cgroup_from_css(wb->memcg_css);
 	struct mem_cgroup *parent;
-	unsigned long head_room = PAGE_COUNTER_MAX;
-	unsigned long file_pages;
 
 	*pdirty = mem_cgroup_read_stat(memcg, MEM_CGROUP_STAT_DIRTY);
 
 	/* this should eventually include NR_UNSTABLE_NFS */
 	*pwriteback = mem_cgroup_read_stat(memcg, MEM_CGROUP_STAT_WRITEBACK);
+	*pfilepages = mem_cgroup_nr_lru_pages(memcg, (1 << LRU_INACTIVE_FILE) |
+						     (1 << LRU_ACTIVE_FILE));
+	*pheadroom = PAGE_COUNTER_MAX;
 
-	file_pages = mem_cgroup_nr_lru_pages(memcg, (1 << LRU_INACTIVE_FILE) |
-						    (1 << LRU_ACTIVE_FILE));
 	while ((parent = parent_mem_cgroup(memcg))) {
 		unsigned long ceiling = min(memcg->memory.limit, memcg->high);
 		unsigned long used = page_counter_read(&memcg->memory);
 
-		head_room = min(head_room, ceiling - min(ceiling, used));
+		*pheadroom = min(*pheadroom, ceiling - min(ceiling, used));
 		memcg = parent;
 	}
-
-	*pavail = file_pages + head_room;
 }
 
 #else	/* CONFIG_CGROUP_WRITEBACK */
diff --git a/mm/memory.c b/mm/memory.c
index 9cb2747..deb679c 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2426,6 +2426,8 @@
 	if (details.last_index < details.first_index)
 		details.last_index = ULONG_MAX;
 
+
+	/* DAX uses i_mmap_lock to serialise file truncate vs page fault */
 	i_mmap_lock_write(mapping);
 	if (unlikely(!RB_EMPTY_ROOT(&mapping->i_mmap)))
 		unmap_mapping_range_tree(&mapping->i_mmap, &details);
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 0a931cd..2c90357 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -145,9 +145,6 @@
 	unsigned long		pos_ratio;
 };
 
-#define DTC_INIT_COMMON(__wb)	.wb = (__wb),				\
-				.wb_completions = &(__wb)->completions
-
 /*
  * Length of period for aging writeout fractions of bdis. This is an
  * arbitrarily chosen number. The longer the period, the slower fractions will
@@ -157,12 +154,16 @@
 
 #ifdef CONFIG_CGROUP_WRITEBACK
 
-#define GDTC_INIT(__wb)		.dom = &global_wb_domain,		\
-				DTC_INIT_COMMON(__wb)
+#define GDTC_INIT(__wb)		.wb = (__wb),				\
+				.dom = &global_wb_domain,		\
+				.wb_completions = &(__wb)->completions
+
 #define GDTC_INIT_NO_WB		.dom = &global_wb_domain
-#define MDTC_INIT(__wb, __gdtc)	.dom = mem_cgroup_wb_domain(__wb),	\
-				.gdtc = __gdtc,				\
-				DTC_INIT_COMMON(__wb)
+
+#define MDTC_INIT(__wb, __gdtc)	.wb = (__wb),				\
+				.dom = mem_cgroup_wb_domain(__wb),	\
+				.wb_completions = &(__wb)->memcg_completions, \
+				.gdtc = __gdtc
 
 static bool mdtc_valid(struct dirty_throttle_control *dtc)
 {
@@ -213,7 +214,8 @@
 
 #else	/* CONFIG_CGROUP_WRITEBACK */
 
-#define GDTC_INIT(__wb)		DTC_INIT_COMMON(__wb)
+#define GDTC_INIT(__wb)		.wb = (__wb),                           \
+				.wb_completions = &(__wb)->completions
 #define GDTC_INIT_NO_WB
 #define MDTC_INIT(__wb, __gdtc)
 
@@ -682,13 +684,19 @@
 	return max(thresh, dom->dirty_limit);
 }
 
-/* memory available to a memcg domain is capped by system-wide clean memory */
-static void mdtc_cap_avail(struct dirty_throttle_control *mdtc)
+/*
+ * Memory which can be further allocated to a memcg domain is capped by
+ * system-wide clean memory excluding the amount being used in the domain.
+ */
+static void mdtc_calc_avail(struct dirty_throttle_control *mdtc,
+			    unsigned long filepages, unsigned long headroom)
 {
 	struct dirty_throttle_control *gdtc = mdtc_gdtc(mdtc);
-	unsigned long clean = gdtc->avail - min(gdtc->avail, gdtc->dirty);
+	unsigned long clean = filepages - min(filepages, mdtc->dirty);
+	unsigned long global_clean = gdtc->avail - min(gdtc->avail, gdtc->dirty);
+	unsigned long other_clean = global_clean - min(global_clean, clean);
 
-	mdtc->avail = min(mdtc->avail, clean);
+	mdtc->avail = filepages + min(headroom, other_clean);
 }
 
 /**
@@ -1562,16 +1570,16 @@
 		}
 
 		if (mdtc) {
-			unsigned long writeback;
+			unsigned long filepages, headroom, writeback;
 
 			/*
 			 * If @wb belongs to !root memcg, repeat the same
 			 * basic calculations for the memcg domain.
 			 */
-			mem_cgroup_wb_stats(wb, &mdtc->avail, &mdtc->dirty,
-					    &writeback);
-			mdtc_cap_avail(mdtc);
+			mem_cgroup_wb_stats(wb, &filepages, &headroom,
+					    &mdtc->dirty, &writeback);
 			mdtc->dirty += writeback;
+			mdtc_calc_avail(mdtc, filepages, headroom);
 
 			domain_dirty_limits(mdtc);
 
@@ -1893,10 +1901,11 @@
 		return true;
 
 	if (mdtc) {
-		unsigned long writeback;
+		unsigned long filepages, headroom, writeback;
 
-		mem_cgroup_wb_stats(wb, &mdtc->avail, &mdtc->dirty, &writeback);
-		mdtc_cap_avail(mdtc);
+		mem_cgroup_wb_stats(wb, &filepages, &headroom, &mdtc->dirty,
+				    &writeback);
+		mdtc_calc_avail(mdtc, filepages, headroom);
 		domain_dirty_limits(mdtc);	/* ditto, ignore writeback */
 
 		if (mdtc->dirty > mdtc->bg_thresh)
@@ -1956,7 +1965,6 @@
 	int nr_pages = global_page_state(NR_FILE_DIRTY) +
 		global_page_state(NR_UNSTABLE_NFS);
 	struct bdi_writeback *wb;
-	struct wb_iter iter;
 
 	/*
 	 * We want to write everything out, not just down to the dirty
@@ -1965,10 +1973,12 @@
 	if (!bdi_has_dirty_io(&q->backing_dev_info))
 		return;
 
-	bdi_for_each_wb(wb, &q->backing_dev_info, &iter, 0)
+	rcu_read_lock();
+	list_for_each_entry_rcu(wb, &q->backing_dev_info.wb_list, bdi_node)
 		if (wb_has_dirty_io(wb))
 			wb_start_writeback(wb, nr_pages, true,
 					   WB_REASON_LAPTOP_TIMER);
+	rcu_read_unlock();
 }
 
 /*
diff --git a/mm/readahead.c b/mm/readahead.c
index 60cd846..24682f6 100644
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -89,8 +89,8 @@
 	while (!list_empty(pages)) {
 		page = list_to_page(pages);
 		list_del(&page->lru);
-		if (add_to_page_cache_lru(page, mapping,
-					page->index, GFP_KERNEL)) {
+		if (add_to_page_cache_lru(page, mapping, page->index,
+				GFP_KERNEL & mapping_gfp_mask(mapping))) {
 			read_cache_pages_invalidate_page(mapping, page);
 			continue;
 		}
@@ -127,8 +127,8 @@
 	for (page_idx = 0; page_idx < nr_pages; page_idx++) {
 		struct page *page = list_to_page(pages);
 		list_del(&page->lru);
-		if (!add_to_page_cache_lru(page, mapping,
-					page->index, GFP_KERNEL)) {
+		if (!add_to_page_cache_lru(page, mapping, page->index,
+				GFP_KERNEL & mapping_gfp_mask(mapping))) {
 			mapping->a_ops->readpage(filp, page);
 		}
 		page_cache_release(page);
diff --git a/mm/vmstat.c b/mm/vmstat.c
index 4f5cd97..fbf1448 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -1363,15 +1363,16 @@
 
 static void vmstat_update(struct work_struct *w)
 {
-	if (refresh_cpu_vm_stats())
+	if (refresh_cpu_vm_stats()) {
 		/*
 		 * Counters were updated so we expect more updates
 		 * to occur in the future. Keep on running the
 		 * update worker thread.
 		 */
-		schedule_delayed_work(this_cpu_ptr(&vmstat_work),
+		schedule_delayed_work_on(smp_processor_id(),
+			this_cpu_ptr(&vmstat_work),
 			round_jiffies_relative(sysctl_stat_interval));
-	else {
+	} else {
 		/*
 		 * We did not update any counters so the app may be in
 		 * a mode where it does not cause counter updates.
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index b4548c73..2dda439 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -91,10 +91,50 @@
 	 * autoconnect action, remove them completely. If they are, just unmark
 	 * them as waiting for connection, by clearing explicit_connect field.
 	 */
-	if (params->auto_connect == HCI_AUTO_CONN_EXPLICIT)
+	params->explicit_connect = false;
+
+	list_del_init(&params->action);
+
+	switch (params->auto_connect) {
+	case HCI_AUTO_CONN_EXPLICIT:
 		hci_conn_params_del(conn->hdev, bdaddr, bdaddr_type);
-	else
-		params->explicit_connect = false;
+		/* return instead of break to avoid duplicate scan update */
+		return;
+	case HCI_AUTO_CONN_DIRECT:
+	case HCI_AUTO_CONN_ALWAYS:
+		list_add(&params->action, &conn->hdev->pend_le_conns);
+		break;
+	case HCI_AUTO_CONN_REPORT:
+		list_add(&params->action, &conn->hdev->pend_le_reports);
+		break;
+	default:
+		break;
+	}
+
+	hci_update_background_scan(conn->hdev);
+}
+
+static void hci_conn_cleanup(struct hci_conn *conn)
+{
+	struct hci_dev *hdev = conn->hdev;
+
+	if (test_bit(HCI_CONN_PARAM_REMOVAL_PEND, &conn->flags))
+		hci_conn_params_del(conn->hdev, &conn->dst, conn->dst_type);
+
+	hci_chan_list_flush(conn);
+
+	hci_conn_hash_del(hdev, conn);
+
+	if (hdev->notify)
+		hdev->notify(hdev, HCI_NOTIFY_CONN_DEL);
+
+	hci_conn_del_sysfs(conn);
+
+	debugfs_remove_recursive(conn->debugfs);
+
+	hci_dev_put(hdev);
+
+	hci_conn_put(conn);
 }
 
 /* This function requires the caller holds hdev->lock */
@@ -102,8 +142,13 @@
 {
 	hci_connect_le_scan_cleanup(conn);
 
-	hci_conn_hash_del(conn->hdev, conn);
-	hci_update_background_scan(conn->hdev);
+	/* We can't call hci_conn_del here since that would deadlock
+	 * with trying to call cancel_delayed_work_sync(&conn->disc_work).
+	 * Instead, call just hci_conn_cleanup() which contains the bare
+	 * minimum cleanup operations needed for a connection in this
+	 * state.
+	 */
+	hci_conn_cleanup(conn);
 }
 
 static void hci_acl_create_connection(struct hci_conn *conn)
@@ -581,27 +626,17 @@
 		}
 	}
 
-	hci_chan_list_flush(conn);
-
 	if (conn->amp_mgr)
 		amp_mgr_put(conn->amp_mgr);
 
-	hci_conn_hash_del(hdev, conn);
-	if (hdev->notify)
-		hdev->notify(hdev, HCI_NOTIFY_CONN_DEL);
-
 	skb_queue_purge(&conn->data_q);
 
-	hci_conn_del_sysfs(conn);
-
-	debugfs_remove_recursive(conn->debugfs);
-
-	if (test_bit(HCI_CONN_PARAM_REMOVAL_PEND, &conn->flags))
-		hci_conn_params_del(conn->hdev, &conn->dst, conn->dst_type);
-
-	hci_dev_put(hdev);
-
-	hci_conn_put(conn);
+	/* Remove the connection from the list and cleanup its remaining
+	 * state. This is a separate function since for some cases like
+	 * BT_CONNECT_SCAN we *only* want the cleanup part without the
+	 * rest of hci_conn_del.
+	 */
+	hci_conn_cleanup(conn);
 
 	return 0;
 }
@@ -973,15 +1008,23 @@
 	if (is_connected(hdev, addr, addr_type))
 		return -EISCONN;
 
-	params = hci_conn_params_add(hdev, addr, addr_type);
-	if (!params)
-		return -EIO;
+	params = hci_conn_params_lookup(hdev, addr, addr_type);
+	if (!params) {
+		params = hci_conn_params_add(hdev, addr, addr_type);
+		if (!params)
+			return -ENOMEM;
 
-	/* If we created new params, or existing params were marked as disabled,
-	 * mark them to be used just once to connect.
-	 */
-	if (params->auto_connect == HCI_AUTO_CONN_DISABLED) {
+		/* If we created new params, mark them to be deleted in
+		 * hci_connect_le_scan_cleanup. It's different case than
+		 * existing disabled params, those will stay after cleanup.
+		 */
 		params->auto_connect = HCI_AUTO_CONN_EXPLICIT;
+	}
+
+	/* We're trying to connect, so make sure params are at pend_le_conns */
+	if (params->auto_connect == HCI_AUTO_CONN_DISABLED ||
+	    params->auto_connect == HCI_AUTO_CONN_REPORT ||
+	    params->auto_connect == HCI_AUTO_CONN_EXPLICIT) {
 		list_del_init(&params->action);
 		list_add(&params->action, &hdev->pend_le_conns);
 	}
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index adcbc74..e837539 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -2861,13 +2861,6 @@
 			return param;
 	}
 
-	list_for_each_entry(param, &hdev->pend_le_reports, action) {
-		if (bacmp(&param->addr, addr) == 0 &&
-		    param->addr_type == addr_type &&
-		    param->explicit_connect)
-			return param;
-	}
-
 	return NULL;
 }
 
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 1860418..bc31099 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -55,7 +55,12 @@
 	wake_up_bit(&hdev->flags, HCI_INQUIRY);
 
 	hci_dev_lock(hdev);
-	hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
+	/* Set discovery state to stopped if we're not doing LE active
+	 * scanning.
+	 */
+	if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
+	    hdev->le_scan_type != LE_SCAN_ACTIVE)
+		hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
 	hci_dev_unlock(hdev);
 
 	hci_conn_check_pending(hdev);
@@ -4648,8 +4653,8 @@
 	/* If we're not connectable only connect devices that we have in
 	 * our pend_le_conns list.
 	 */
-	params = hci_explicit_connect_lookup(hdev, addr, addr_type);
-
+	params = hci_pend_le_action_lookup(&hdev->pend_le_conns, addr,
+					   addr_type);
 	if (!params)
 		return NULL;
 
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index ccaf5a4..c4fe2fe 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -3545,6 +3545,7 @@
 				       auth_type);
 	} else {
 		u8 addr_type;
+		struct hci_conn_params *p;
 
 		/* Convert from L2CAP channel address type to HCI address type
 		 */
@@ -3562,7 +3563,10 @@
 		 * If connection parameters already exist, then they
 		 * will be kept and this function does nothing.
 		 */
-		hci_conn_params_add(hdev, &cp->addr.bdaddr, addr_type);
+		p = hci_conn_params_add(hdev, &cp->addr.bdaddr, addr_type);
+
+		if (p->auto_connect == HCI_AUTO_CONN_EXPLICIT)
+			p->auto_connect = HCI_AUTO_CONN_DISABLED;
 
 		conn = hci_connect_le_scan(hdev, &cp->addr.bdaddr,
 					   addr_type, sec_level,
@@ -6117,14 +6121,21 @@
 		__hci_update_background_scan(req);
 		break;
 	case HCI_AUTO_CONN_REPORT:
-		list_add(&params->action, &hdev->pend_le_reports);
+		if (params->explicit_connect)
+			list_add(&params->action, &hdev->pend_le_conns);
+		else
+			list_add(&params->action, &hdev->pend_le_reports);
 		__hci_update_background_scan(req);
 		break;
 	case HCI_AUTO_CONN_DIRECT:
 	case HCI_AUTO_CONN_ALWAYS:
 		if (!is_connected(hdev, addr, addr_type)) {
 			list_add(&params->action, &hdev->pend_le_conns);
-			__hci_update_background_scan(req);
+			/* If we are in scan phase of connecting, we were
+			 * already added to pend_le_conns and scanning.
+			 */
+			if (params->auto_connect != HCI_AUTO_CONN_EXPLICIT)
+				__hci_update_background_scan(req);
 		}
 		break;
 	}
@@ -6379,7 +6390,8 @@
 			goto unlock;
 		}
 
-		if (params->auto_connect == HCI_AUTO_CONN_DISABLED) {
+		if (params->auto_connect == HCI_AUTO_CONN_DISABLED ||
+		    params->auto_connect == HCI_AUTO_CONN_EXPLICIT) {
 			err = cmd->cmd_complete(cmd,
 						MGMT_STATUS_INVALID_PARAMS);
 			mgmt_pending_remove(cmd);
@@ -6415,6 +6427,10 @@
 			if (p->auto_connect == HCI_AUTO_CONN_DISABLED)
 				continue;
 			device_removed(sk, hdev, &p->addr, p->addr_type);
+			if (p->explicit_connect) {
+				p->auto_connect = HCI_AUTO_CONN_EXPLICIT;
+				continue;
+			}
 			list_del(&p->action);
 			list_del(&p->list);
 			kfree(p);
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index 80b94e3..f79ccac 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -285,6 +285,7 @@
 	switch (op->op) {
 	case CEPH_OSD_OP_READ:
 	case CEPH_OSD_OP_WRITE:
+	case CEPH_OSD_OP_WRITEFULL:
 		ceph_osd_data_release(&op->extent.osd_data);
 		break;
 	case CEPH_OSD_OP_CALL:
@@ -485,13 +486,14 @@
 	size_t payload_len = 0;
 
 	BUG_ON(opcode != CEPH_OSD_OP_READ && opcode != CEPH_OSD_OP_WRITE &&
-	       opcode != CEPH_OSD_OP_ZERO && opcode != CEPH_OSD_OP_TRUNCATE);
+	       opcode != CEPH_OSD_OP_WRITEFULL && opcode != CEPH_OSD_OP_ZERO &&
+	       opcode != CEPH_OSD_OP_TRUNCATE);
 
 	op->extent.offset = offset;
 	op->extent.length = length;
 	op->extent.truncate_size = truncate_size;
 	op->extent.truncate_seq = truncate_seq;
-	if (opcode == CEPH_OSD_OP_WRITE)
+	if (opcode == CEPH_OSD_OP_WRITE || opcode == CEPH_OSD_OP_WRITEFULL)
 		payload_len += length;
 
 	op->payload_len = payload_len;
@@ -670,9 +672,11 @@
 		break;
 	case CEPH_OSD_OP_READ:
 	case CEPH_OSD_OP_WRITE:
+	case CEPH_OSD_OP_WRITEFULL:
 	case CEPH_OSD_OP_ZERO:
 	case CEPH_OSD_OP_TRUNCATE:
-		if (src->op == CEPH_OSD_OP_WRITE)
+		if (src->op == CEPH_OSD_OP_WRITE ||
+		    src->op == CEPH_OSD_OP_WRITEFULL)
 			request_data_len = src->extent.length;
 		dst->extent.offset = cpu_to_le64(src->extent.offset);
 		dst->extent.length = cpu_to_le64(src->extent.length);
@@ -681,7 +685,8 @@
 		dst->extent.truncate_seq =
 			cpu_to_le32(src->extent.truncate_seq);
 		osd_data = &src->extent.osd_data;
-		if (src->op == CEPH_OSD_OP_WRITE)
+		if (src->op == CEPH_OSD_OP_WRITE ||
+		    src->op == CEPH_OSD_OP_WRITEFULL)
 			ceph_osdc_msg_data_add(req->r_request, osd_data);
 		else
 			ceph_osdc_msg_data_add(req->r_reply, osd_data);
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index b495ab1..29edf74 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -1284,7 +1284,7 @@
 
 	gstrings.len = ret;
 
-	data = kmalloc(gstrings.len * ETH_GSTRING_LEN, GFP_USER);
+	data = kcalloc(gstrings.len, ETH_GSTRING_LEN, GFP_USER);
 	if (!data)
 		return -ENOMEM;
 
diff --git a/net/core/filter.c b/net/core/filter.c
index 05a04ea..bb18c36 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -1415,6 +1415,7 @@
 		return dev_forward_skb(dev, skb2);
 
 	skb2->dev = dev;
+	skb_sender_cpu_clear(skb2);
 	return dev_queue_xmit(skb2);
 }
 
@@ -1854,9 +1855,13 @@
 		goto out;
 
 	/* We're copying the filter that has been originally attached,
-	 * so no conversion/decode needed anymore.
+	 * so no conversion/decode needed anymore. eBPF programs that
+	 * have no original program cannot be dumped through this.
 	 */
+	ret = -EACCES;
 	fprog = filter->prog->orig_prog;
+	if (!fprog)
+		goto out;
 
 	ret = fprog->len;
 	if (!len)
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index c59fa5d..adb5325 100644
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -22,6 +22,7 @@
 #include <linux/of_platform.h>
 #include <linux/of_net.h>
 #include <linux/sysfs.h>
+#include <linux/phy_fixed.h>
 #include "dsa_priv.h"
 
 char dsa_driver_version[] = "0.1";
@@ -305,7 +306,7 @@
 	if (ret < 0)
 		goto out;
 
-	ds->slave_mii_bus = mdiobus_alloc();
+	ds->slave_mii_bus = devm_mdiobus_alloc(parent);
 	if (ds->slave_mii_bus == NULL) {
 		ret = -ENOMEM;
 		goto out;
@@ -314,7 +315,7 @@
 
 	ret = mdiobus_register(ds->slave_mii_bus);
 	if (ret < 0)
-		goto out_free;
+		goto out;
 
 
 	/*
@@ -367,10 +368,7 @@
 
 	return ret;
 
-out_free:
-	mdiobus_free(ds->slave_mii_bus);
 out:
-	kfree(ds);
 	return ret;
 }
 
@@ -400,7 +398,7 @@
 	/*
 	 * Allocate and initialise switch state.
 	 */
-	ds = kzalloc(sizeof(*ds) + drv->priv_size, GFP_KERNEL);
+	ds = devm_kzalloc(parent, sizeof(*ds) + drv->priv_size, GFP_KERNEL);
 	if (ds == NULL)
 		return ERR_PTR(-ENOMEM);
 
@@ -420,10 +418,47 @@
 
 static void dsa_switch_destroy(struct dsa_switch *ds)
 {
+	struct device_node *port_dn;
+	struct phy_device *phydev;
+	struct dsa_chip_data *cd = ds->pd;
+	int port;
+
 #ifdef CONFIG_NET_DSA_HWMON
 	if (ds->hwmon_dev)
 		hwmon_device_unregister(ds->hwmon_dev);
 #endif
+
+	/* Disable configuration of the CPU and DSA ports */
+	for (port = 0; port < DSA_MAX_PORTS; port++) {
+		if (!(dsa_is_cpu_port(ds, port) || dsa_is_dsa_port(ds, port)))
+			continue;
+
+		port_dn = cd->port_dn[port];
+		if (of_phy_is_fixed_link(port_dn)) {
+			phydev = of_phy_find_device(port_dn);
+			if (phydev) {
+				int addr = phydev->addr;
+
+				phy_device_free(phydev);
+				of_node_put(port_dn);
+				fixed_phy_del(addr);
+			}
+		}
+	}
+
+	/* Destroy network devices for physical switch ports. */
+	for (port = 0; port < DSA_MAX_PORTS; port++) {
+		if (!(ds->phys_port_mask & (1 << port)))
+			continue;
+
+		if (!ds->ports[port])
+			continue;
+
+		unregister_netdev(ds->ports[port]);
+		free_netdev(ds->ports[port]);
+	}
+
+	mdiobus_unregister(ds->slave_mii_bus);
 }
 
 #ifdef CONFIG_PM_SLEEP
@@ -802,10 +837,11 @@
 }
 #endif
 
-static void dsa_setup_dst(struct dsa_switch_tree *dst, struct net_device *dev,
-			  struct device *parent, struct dsa_platform_data *pd)
+static int dsa_setup_dst(struct dsa_switch_tree *dst, struct net_device *dev,
+			 struct device *parent, struct dsa_platform_data *pd)
 {
 	int i;
+	unsigned configured = 0;
 
 	dst->pd = pd;
 	dst->master_netdev = dev;
@@ -825,9 +861,17 @@
 		dst->ds[i] = ds;
 		if (ds->drv->poll_link != NULL)
 			dst->link_poll_needed = 1;
+
+		++configured;
 	}
 
 	/*
+	 * If no switch was found, exit cleanly
+	 */
+	if (!configured)
+		return -EPROBE_DEFER;
+
+	/*
 	 * If we use a tagging format that doesn't have an ethertype
 	 * field, make sure that all packets from this point on get
 	 * sent to the tag format's receive function.
@@ -843,6 +887,8 @@
 		dst->link_poll_timer.expires = round_jiffies(jiffies + HZ);
 		add_timer(&dst->link_poll_timer);
 	}
+
+	return 0;
 }
 
 static int dsa_probe(struct platform_device *pdev)
@@ -883,7 +929,7 @@
 		goto out;
 	}
 
-	dst = kzalloc(sizeof(*dst), GFP_KERNEL);
+	dst = devm_kzalloc(&pdev->dev, sizeof(*dst), GFP_KERNEL);
 	if (dst == NULL) {
 		dev_put(dev);
 		ret = -ENOMEM;
@@ -892,7 +938,9 @@
 
 	platform_set_drvdata(pdev, dst);
 
-	dsa_setup_dst(dst, dev, &pdev->dev, pd);
+	ret = dsa_setup_dst(dst, dev, &pdev->dev, pd);
+	if (ret)
+		goto out;
 
 	return 0;
 
@@ -914,7 +962,7 @@
 	for (i = 0; i < dst->pd->nr_chips; i++) {
 		struct dsa_switch *ds = dst->ds[i];
 
-		if (ds != NULL)
+		if (ds)
 			dsa_switch_destroy(ds);
 	}
 }
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index f03db8b..0c9c348 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -312,7 +312,7 @@
 	if (!skb)
 		return;
 
-	skb_dst_set(skb, dst);
+	skb_dst_set(skb, dst_clone(dst));
 	arp_xmit(skb);
 }
 
@@ -384,7 +384,7 @@
 	}
 
 	if (skb && !(dev->priv_flags & IFF_XMIT_DST_RELEASE))
-		dst = dst_clone(skb_dst(skb));
+		dst = skb_dst(skb);
 	arp_send_dst(ARPOP_REQUEST, ETH_P_ARP, target, dev, saddr,
 		     dst_hw, dev->dev_addr, NULL, dst);
 }
@@ -811,7 +811,7 @@
 				} else {
 					pneigh_enqueue(&arp_tbl,
 						       in_dev->arp_parms, skb);
-					return 0;
+					goto out_free_dst;
 				}
 				goto out;
 			}
@@ -865,6 +865,8 @@
 
 out:
 	consume_skb(skb);
+out_free_dst:
+	dst_release(reply_dst);
 	return 0;
 }
 
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 7bb9c39..61b45a1 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -577,21 +577,22 @@
 static bool reqsk_queue_unlink(struct request_sock_queue *queue,
 			       struct request_sock *req)
 {
-	struct listen_sock *lopt = queue->listen_opt;
 	struct request_sock **prev;
+	struct listen_sock *lopt;
 	bool found = false;
 
 	spin_lock(&queue->syn_wait_lock);
-
-	for (prev = &lopt->syn_table[req->rsk_hash]; *prev != NULL;
-	     prev = &(*prev)->dl_next) {
-		if (*prev == req) {
-			*prev = req->dl_next;
-			found = true;
-			break;
+	lopt = queue->listen_opt;
+	if (lopt) {
+		for (prev = &lopt->syn_table[req->rsk_hash]; *prev != NULL;
+		     prev = &(*prev)->dl_next) {
+			if (*prev == req) {
+				*prev = req->dl_next;
+				found = true;
+				break;
+			}
 		}
 	}
-
 	spin_unlock(&queue->syn_wait_lock);
 	if (timer_pending(&req->rsk_timer) && del_timer_sync(&req->rsk_timer))
 		reqsk_put(req);
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 9001133..36b85bd 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -3119,6 +3119,8 @@
 	}
 
 	addrconf_addr_gen(idev, true);
+	if (dev->flags & IFF_POINTOPOINT)
+		addrconf_add_mroute(dev);
 }
 #endif
 
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 92b1aa3..61d403e 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -376,6 +376,9 @@
 	if (skb->pkt_type != PACKET_HOST)
 		goto drop;
 
+	if (unlikely(skb->sk))
+		goto drop;
+
 	if (skb_warn_if_lro(skb))
 		goto drop;
 
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index cb32ce2..968f31c 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -142,6 +142,9 @@
 	struct net_device *loopback_dev = net->loopback_dev;
 	int cpu;
 
+	if (dev == loopback_dev)
+		return;
+
 	for_each_possible_cpu(cpu) {
 		struct uncached_list *ul = per_cpu_ptr(&rt6_uncached_list, cpu);
 		struct rt6_info *rt;
@@ -151,14 +154,12 @@
 			struct inet6_dev *rt_idev = rt->rt6i_idev;
 			struct net_device *rt_dev = rt->dst.dev;
 
-			if (rt_idev && (rt_idev->dev == dev || !dev) &&
-			    rt_idev->dev != loopback_dev) {
+			if (rt_idev->dev == dev) {
 				rt->rt6i_idev = in6_dev_get(loopback_dev);
 				in6_dev_put(rt_idev);
 			}
 
-			if (rt_dev && (rt_dev == dev || !dev) &&
-			    rt_dev != loopback_dev) {
+			if (rt_dev == dev) {
 				rt->dst.dev = loopback_dev;
 				dev_hold(rt->dst.dev);
 				dev_put(rt_dev);
@@ -247,12 +248,6 @@
 {
 }
 
-static u32 *ip6_rt_blackhole_cow_metrics(struct dst_entry *dst,
-					 unsigned long old)
-{
-	return NULL;
-}
-
 static struct dst_ops ip6_dst_blackhole_ops = {
 	.family			=	AF_INET6,
 	.destroy		=	ip6_dst_destroy,
@@ -261,7 +256,7 @@
 	.default_advmss		=	ip6_default_advmss,
 	.update_pmtu		=	ip6_rt_blackhole_update_pmtu,
 	.redirect		=	ip6_rt_blackhole_redirect,
-	.cow_metrics		=	ip6_rt_blackhole_cow_metrics,
+	.cow_metrics		=	dst_cow_metrics_generic,
 	.neigh_lookup		=	ip6_neigh_lookup,
 };
 
@@ -318,6 +313,15 @@
 
 #endif
 
+static void rt6_info_init(struct rt6_info *rt)
+{
+	struct dst_entry *dst = &rt->dst;
+
+	memset(dst + 1, 0, sizeof(*rt) - sizeof(*dst));
+	INIT_LIST_HEAD(&rt->rt6i_siblings);
+	INIT_LIST_HEAD(&rt->rt6i_uncached);
+}
+
 /* allocate dst with ip6_dst_ops */
 static struct rt6_info *__ip6_dst_alloc(struct net *net,
 					struct net_device *dev,
@@ -326,13 +330,9 @@
 	struct rt6_info *rt = dst_alloc(&net->ipv6.ip6_dst_ops, dev,
 					0, DST_OBSOLETE_FORCE_CHK, flags);
 
-	if (rt) {
-		struct dst_entry *dst = &rt->dst;
+	if (rt)
+		rt6_info_init(rt);
 
-		memset(dst + 1, 0, sizeof(*rt) - sizeof(*dst));
-		INIT_LIST_HEAD(&rt->rt6i_siblings);
-		INIT_LIST_HEAD(&rt->rt6i_uncached);
-	}
 	return rt;
 }
 
@@ -1213,24 +1213,20 @@
 
 	rt = dst_alloc(&ip6_dst_blackhole_ops, ort->dst.dev, 1, DST_OBSOLETE_NONE, 0);
 	if (rt) {
+		rt6_info_init(rt);
+
 		new = &rt->dst;
-
-		memset(new + 1, 0, sizeof(*rt) - sizeof(*new));
-
 		new->__use = 1;
 		new->input = dst_discard;
 		new->output = dst_discard_sk;
 
-		if (dst_metrics_read_only(&ort->dst))
-			new->_metrics = ort->dst._metrics;
-		else
-			dst_copy_metrics(new, &ort->dst);
+		dst_copy_metrics(new, &ort->dst);
 		rt->rt6i_idev = ort->rt6i_idev;
 		if (rt->rt6i_idev)
 			in6_dev_hold(rt->rt6i_idev);
 
 		rt->rt6i_gateway = ort->rt6i_gateway;
-		rt->rt6i_flags = ort->rt6i_flags;
+		rt->rt6i_flags = ort->rt6i_flags & ~RTF_PCPU;
 		rt->rt6i_metric = 0;
 
 		memcpy(&rt->rt6i_dst, &ort->rt6i_dst, sizeof(struct rt6key));
@@ -2622,7 +2618,8 @@
 
 	fib6_clean_all(net, fib6_ifdown, &adn);
 	icmp6_clean_all(fib6_ifdown, &adn);
-	rt6_uncached_list_flush_dev(net, dev);
+	if (dev)
+		rt6_uncached_list_flush_dev(net, dev);
 }
 
 struct rt6_mtu_change_arg {
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index 30caa28..5cedfda 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -37,6 +37,7 @@
 
 	memset(&fl6, 0, sizeof(fl6));
 	fl6.flowi6_oif = oif;
+	fl6.flowi6_flags = FLOWI_FLAG_SKIP_NH_OIF;
 	memcpy(&fl6.daddr, daddr, sizeof(fl6.daddr));
 	if (saddr)
 		memcpy(&fl6.saddr, saddr, sizeof(fl6.saddr));
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index ced6bf3..1560c84 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -149,7 +149,7 @@
 
 	for (i = 0; i < NUM_IEEE80211_HW_FLAGS; i++) {
 		if (test_bit(i, local->hw.flags))
-			pos += scnprintf(pos, end - pos, "%s",
+			pos += scnprintf(pos, end - pos, "%s\n",
 					 hw_flag_names[i]);
 	}
 
diff --git a/net/mac80211/status.c b/net/mac80211/status.c
index 8ba5832..3ed7ddfbf 100644
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -101,6 +101,7 @@
 	 * when it wakes up for the next time.
 	 */
 	set_sta_flag(sta, WLAN_STA_CLEAR_PS_FILT);
+	ieee80211_clear_fast_xmit(sta);
 
 	/*
 	 * This code races in the following way:
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 84e0e8c..7892eb8 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1218,8 +1218,10 @@
 
 	if (!tx->sta)
 		info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
-	else if (test_and_clear_sta_flag(tx->sta, WLAN_STA_CLEAR_PS_FILT))
+	else if (test_and_clear_sta_flag(tx->sta, WLAN_STA_CLEAR_PS_FILT)) {
 		info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
+		ieee80211_check_fast_xmit(tx->sta);
+	}
 
 	info->flags |= IEEE80211_TX_CTL_FIRST_FRAGMENT;
 
@@ -2451,7 +2453,8 @@
 
 	if (test_sta_flag(sta, WLAN_STA_PS_STA) ||
 	    test_sta_flag(sta, WLAN_STA_PS_DRIVER) ||
-	    test_sta_flag(sta, WLAN_STA_PS_DELIVER))
+	    test_sta_flag(sta, WLAN_STA_PS_DELIVER) ||
+	    test_sta_flag(sta, WLAN_STA_CLEAR_PS_FILT))
 		goto out;
 
 	if (sdata->noack_map)
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 8f060d7..0a49a8c 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -2785,6 +2785,7 @@
 	struct sk_buff *skb = NULL;
 	struct nlmsghdr *nlh;
 	int len, err = -ENOBUFS;
+	int alloc_min_size;
 	int alloc_size;
 
 	mutex_lock(nlk->cb_mutex);
@@ -2793,9 +2794,6 @@
 		goto errout_skb;
 	}
 
-	cb = &nlk->cb;
-	alloc_size = max_t(int, cb->min_dump_alloc, NLMSG_GOODSIZE);
-
 	if (!netlink_rx_is_mmaped(sk) &&
 	    atomic_read(&sk->sk_rmem_alloc) >= sk->sk_rcvbuf)
 		goto errout_skb;
@@ -2805,23 +2803,35 @@
 	 * to reduce number of system calls on dump operations, if user
 	 * ever provided a big enough buffer.
 	 */
-	if (alloc_size < nlk->max_recvmsg_len) {
-		skb = netlink_alloc_skb(sk,
-					nlk->max_recvmsg_len,
-					nlk->portid,
+	cb = &nlk->cb;
+	alloc_min_size = max_t(int, cb->min_dump_alloc, NLMSG_GOODSIZE);
+
+	if (alloc_min_size < nlk->max_recvmsg_len) {
+		alloc_size = nlk->max_recvmsg_len;
+		skb = netlink_alloc_skb(sk, alloc_size, nlk->portid,
 					GFP_KERNEL |
 					__GFP_NOWARN |
 					__GFP_NORETRY);
-		/* available room should be exact amount to avoid MSG_TRUNC */
-		if (skb)
-			skb_reserve(skb, skb_tailroom(skb) -
-					 nlk->max_recvmsg_len);
 	}
-	if (!skb)
+	if (!skb) {
+		alloc_size = alloc_min_size;
 		skb = netlink_alloc_skb(sk, alloc_size, nlk->portid,
 					GFP_KERNEL);
+	}
 	if (!skb)
 		goto errout_skb;
+
+	/* Trim skb to allocated size. User is expected to provide buffer as
+	 * large as max(min_dump_alloc, 16KiB (mac_recvmsg_len capped at
+	 * netlink_recvmsg())). dump will pack as many smaller messages as
+	 * could fit within the allocated skb. skb is typically allocated
+	 * with larger space than required (could be as much as near 2x the
+	 * requested size with align to next power of 2 approach). Allowing
+	 * dump to use the excess space makes it difficult for a user to have a
+	 * reasonable static buffer based on the expected largest dump of a
+	 * single netdev. The outcome is MSG_TRUNC error.
+	 */
+	skb_reserve(skb, skb_tailroom(skb) - alloc_size);
 	netlink_skb_set_owner_r(skb, sk);
 
 	len = cb->dump(skb, cb);
diff --git a/net/openvswitch/actions.c b/net/openvswitch/actions.c
index 315f533..c6a39bf 100644
--- a/net/openvswitch/actions.c
+++ b/net/openvswitch/actions.c
@@ -684,7 +684,7 @@
 {
 	if (skb_network_offset(skb) > MAX_L2_LEN) {
 		OVS_NLERR(1, "L2 header too long to fragment");
-		return;
+		goto err;
 	}
 
 	if (ethertype == htons(ETH_P_IP)) {
@@ -708,8 +708,7 @@
 		struct rt6_info ovs_rt;
 
 		if (!v6ops) {
-			kfree_skb(skb);
-			return;
+			goto err;
 		}
 
 		prepare_frag(vport, skb);
@@ -728,8 +727,12 @@
 		WARN_ONCE(1, "Failed fragment ->%s: eth=%04x, MRU=%d, MTU=%d.",
 			  ovs_vport_name(vport), ntohs(ethertype), mru,
 			  vport->dev->mtu);
-		kfree_skb(skb);
+		goto err;
 	}
+
+	return;
+err:
+	kfree_skb(skb);
 }
 
 static void do_output(struct datapath *dp, struct sk_buff *skb, int out_port,
@@ -968,7 +971,7 @@
 	case OVS_KEY_ATTR_CT_STATE:
 	case OVS_KEY_ATTR_CT_ZONE:
 	case OVS_KEY_ATTR_CT_MARK:
-	case OVS_KEY_ATTR_CT_LABEL:
+	case OVS_KEY_ATTR_CT_LABELS:
 		err = -EINVAL;
 		break;
 	}
@@ -1099,6 +1102,12 @@
 			break;
 
 		case OVS_ACTION_ATTR_CT:
+			if (!is_flow_key_valid(key)) {
+				err = ovs_flow_key_update(skb, key);
+				if (err)
+					return err;
+			}
+
 			err = ovs_ct_execute(ovs_dp_get_net(dp), skb, key,
 					     nla_data(a));
 
diff --git a/net/openvswitch/conntrack.c b/net/openvswitch/conntrack.c
index 002a755..80bf702 100644
--- a/net/openvswitch/conntrack.c
+++ b/net/openvswitch/conntrack.c
@@ -37,9 +37,9 @@
 };
 
 /* Metadata label for masked write to conntrack label. */
-struct md_label {
-	struct ovs_key_ct_label value;
-	struct ovs_key_ct_label mask;
+struct md_labels {
+	struct ovs_key_ct_labels value;
+	struct ovs_key_ct_labels mask;
 };
 
 /* Conntrack action context for execution. */
@@ -47,10 +47,10 @@
 	struct nf_conntrack_helper *helper;
 	struct nf_conntrack_zone zone;
 	struct nf_conn *ct;
-	u32 flags;
+	u8 commit : 1;
 	u16 family;
 	struct md_mark mark;
-	struct md_label label;
+	struct md_labels labels;
 };
 
 static u16 key_to_nfproto(const struct sw_flow_key *key)
@@ -109,21 +109,21 @@
 #endif
 }
 
-static void ovs_ct_get_label(const struct nf_conn *ct,
-			     struct ovs_key_ct_label *label)
+static void ovs_ct_get_labels(const struct nf_conn *ct,
+			      struct ovs_key_ct_labels *labels)
 {
 	struct nf_conn_labels *cl = ct ? nf_ct_labels_find(ct) : NULL;
 
 	if (cl) {
 		size_t len = cl->words * sizeof(long);
 
-		if (len > OVS_CT_LABEL_LEN)
-			len = OVS_CT_LABEL_LEN;
-		else if (len < OVS_CT_LABEL_LEN)
-			memset(label, 0, OVS_CT_LABEL_LEN);
-		memcpy(label, cl->bits, len);
+		if (len > OVS_CT_LABELS_LEN)
+			len = OVS_CT_LABELS_LEN;
+		else if (len < OVS_CT_LABELS_LEN)
+			memset(labels, 0, OVS_CT_LABELS_LEN);
+		memcpy(labels, cl->bits, len);
 	} else {
-		memset(label, 0, OVS_CT_LABEL_LEN);
+		memset(labels, 0, OVS_CT_LABELS_LEN);
 	}
 }
 
@@ -134,7 +134,7 @@
 	key->ct.state = state;
 	key->ct.zone = zone->id;
 	key->ct.mark = ovs_ct_get_mark(ct);
-	ovs_ct_get_label(ct, &key->ct.label);
+	ovs_ct_get_labels(ct, &key->ct.labels);
 }
 
 /* Update 'key' based on skb->nfct. If 'post_ct' is true, then OVS has
@@ -167,7 +167,7 @@
 
 int ovs_ct_put_key(const struct sw_flow_key *key, struct sk_buff *skb)
 {
-	if (nla_put_u8(skb, OVS_KEY_ATTR_CT_STATE, key->ct.state))
+	if (nla_put_u32(skb, OVS_KEY_ATTR_CT_STATE, key->ct.state))
 		return -EMSGSIZE;
 
 	if (IS_ENABLED(CONFIG_NF_CONNTRACK_ZONES) &&
@@ -179,8 +179,8 @@
 		return -EMSGSIZE;
 
 	if (IS_ENABLED(CONFIG_NF_CONNTRACK_LABELS) &&
-	    nla_put(skb, OVS_KEY_ATTR_CT_LABEL, sizeof(key->ct.label),
-		    &key->ct.label))
+	    nla_put(skb, OVS_KEY_ATTR_CT_LABELS, sizeof(key->ct.labels),
+		    &key->ct.labels))
 		return -EMSGSIZE;
 
 	return 0;
@@ -213,9 +213,9 @@
 #endif
 }
 
-static int ovs_ct_set_label(struct sk_buff *skb, struct sw_flow_key *key,
-			    const struct ovs_key_ct_label *label,
-			    const struct ovs_key_ct_label *mask)
+static int ovs_ct_set_labels(struct sk_buff *skb, struct sw_flow_key *key,
+			     const struct ovs_key_ct_labels *labels,
+			     const struct ovs_key_ct_labels *mask)
 {
 	enum ip_conntrack_info ctinfo;
 	struct nf_conn_labels *cl;
@@ -235,15 +235,15 @@
 		nf_ct_labels_ext_add(ct);
 		cl = nf_ct_labels_find(ct);
 	}
-	if (!cl || cl->words * sizeof(long) < OVS_CT_LABEL_LEN)
+	if (!cl || cl->words * sizeof(long) < OVS_CT_LABELS_LEN)
 		return -ENOSPC;
 
-	err = nf_connlabels_replace(ct, (u32 *)label, (u32 *)mask,
-				    OVS_CT_LABEL_LEN / sizeof(u32));
+	err = nf_connlabels_replace(ct, (u32 *)labels, (u32 *)mask,
+				    OVS_CT_LABELS_LEN / sizeof(u32));
 	if (err)
 		return err;
 
-	ovs_ct_get_label(ct, &key->ct.label);
+	ovs_ct_get_labels(ct, &key->ct.labels);
 	return 0;
 }
 
@@ -465,12 +465,12 @@
 	return 0;
 }
 
-static bool label_nonzero(const struct ovs_key_ct_label *label)
+static bool labels_nonzero(const struct ovs_key_ct_labels *labels)
 {
 	size_t i;
 
-	for (i = 0; i < sizeof(*label); i++)
-		if (label->ct_label[i])
+	for (i = 0; i < sizeof(*labels); i++)
+		if (labels->ct_labels[i])
 			return true;
 
 	return false;
@@ -493,7 +493,7 @@
 			return err;
 	}
 
-	if (info->flags & OVS_CT_F_COMMIT)
+	if (info->commit)
 		err = ovs_ct_commit(net, key, info, skb);
 	else
 		err = ovs_ct_lookup(net, key, info, skb);
@@ -506,9 +506,9 @@
 		if (err)
 			goto err;
 	}
-	if (label_nonzero(&info->label.mask))
-		err = ovs_ct_set_label(skb, key, &info->label.value,
-				       &info->label.mask);
+	if (labels_nonzero(&info->labels.mask))
+		err = ovs_ct_set_labels(skb, key, &info->labels.value,
+					&info->labels.mask);
 err:
 	skb_push(skb, nh_ofs);
 	return err;
@@ -539,14 +539,13 @@
 }
 
 static const struct ovs_ct_len_tbl ovs_ct_attr_lens[OVS_CT_ATTR_MAX + 1] = {
-	[OVS_CT_ATTR_FLAGS]	= { .minlen = sizeof(u32),
-				    .maxlen = sizeof(u32) },
+	[OVS_CT_ATTR_COMMIT]	= { .minlen = 0, .maxlen = 0 },
 	[OVS_CT_ATTR_ZONE]	= { .minlen = sizeof(u16),
 				    .maxlen = sizeof(u16) },
 	[OVS_CT_ATTR_MARK]	= { .minlen = sizeof(struct md_mark),
 				    .maxlen = sizeof(struct md_mark) },
-	[OVS_CT_ATTR_LABEL]	= { .minlen = sizeof(struct md_label),
-				    .maxlen = sizeof(struct md_label) },
+	[OVS_CT_ATTR_LABELS]	= { .minlen = sizeof(struct md_labels),
+				    .maxlen = sizeof(struct md_labels) },
 	[OVS_CT_ATTR_HELPER]	= { .minlen = 1,
 				    .maxlen = NF_CT_HELPER_NAME_LEN }
 };
@@ -576,8 +575,8 @@
 		}
 
 		switch (type) {
-		case OVS_CT_ATTR_FLAGS:
-			info->flags = nla_get_u32(a);
+		case OVS_CT_ATTR_COMMIT:
+			info->commit = true;
 			break;
 #ifdef CONFIG_NF_CONNTRACK_ZONES
 		case OVS_CT_ATTR_ZONE:
@@ -593,10 +592,10 @@
 		}
 #endif
 #ifdef CONFIG_NF_CONNTRACK_LABELS
-		case OVS_CT_ATTR_LABEL: {
-			struct md_label *label = nla_data(a);
+		case OVS_CT_ATTR_LABELS: {
+			struct md_labels *labels = nla_data(a);
 
-			info->label = *label;
+			info->labels = *labels;
 			break;
 		}
 #endif
@@ -633,7 +632,7 @@
 	    attr == OVS_KEY_ATTR_CT_MARK)
 		return true;
 	if (IS_ENABLED(CONFIG_NF_CONNTRACK_LABELS) &&
-	    attr == OVS_KEY_ATTR_CT_LABEL) {
+	    attr == OVS_KEY_ATTR_CT_LABELS) {
 		struct ovs_net *ovs_net = net_generic(net, ovs_net_id);
 
 		return ovs_net->xt_label;
@@ -701,7 +700,7 @@
 	if (!start)
 		return -EMSGSIZE;
 
-	if (nla_put_u32(skb, OVS_CT_ATTR_FLAGS, ct_info->flags))
+	if (ct_info->commit && nla_put_flag(skb, OVS_CT_ATTR_COMMIT))
 		return -EMSGSIZE;
 	if (IS_ENABLED(CONFIG_NF_CONNTRACK_ZONES) &&
 	    nla_put_u16(skb, OVS_CT_ATTR_ZONE, ct_info->zone.id))
@@ -711,8 +710,8 @@
 		    &ct_info->mark))
 		return -EMSGSIZE;
 	if (IS_ENABLED(CONFIG_NF_CONNTRACK_LABELS) &&
-	    nla_put(skb, OVS_CT_ATTR_LABEL, sizeof(ct_info->label),
-		    &ct_info->label))
+	    nla_put(skb, OVS_CT_ATTR_LABELS, sizeof(ct_info->labels),
+		    &ct_info->labels))
 		return -EMSGSIZE;
 	if (ct_info->helper) {
 		if (nla_put_string(skb, OVS_CT_ATTR_HELPER,
@@ -737,7 +736,7 @@
 
 void ovs_ct_init(struct net *net)
 {
-	unsigned int n_bits = sizeof(struct ovs_key_ct_label) * BITS_PER_BYTE;
+	unsigned int n_bits = sizeof(struct ovs_key_ct_labels) * BITS_PER_BYTE;
 	struct ovs_net *ovs_net = net_generic(net, ovs_net_id);
 
 	if (nf_connlabels_get(net, n_bits)) {
diff --git a/net/openvswitch/conntrack.h b/net/openvswitch/conntrack.h
index 43f5dd7..da87149 100644
--- a/net/openvswitch/conntrack.h
+++ b/net/openvswitch/conntrack.h
@@ -34,6 +34,13 @@
 void ovs_ct_fill_key(const struct sk_buff *skb, struct sw_flow_key *key);
 int ovs_ct_put_key(const struct sw_flow_key *key, struct sk_buff *skb);
 void ovs_ct_free_action(const struct nlattr *a);
+
+static inline bool ovs_ct_state_supported(u32 state)
+{
+	return !(state & ~(OVS_CS_F_NEW | OVS_CS_F_ESTABLISHED |
+			 OVS_CS_F_RELATED | OVS_CS_F_REPLY_DIR |
+			 OVS_CS_F_INVALID | OVS_CS_F_TRACKED));
+}
 #else
 #include <linux/errno.h>
 
@@ -46,6 +53,11 @@
 	return false;
 }
 
+static inline bool ovs_ct_state_supported(u32 state)
+{
+	return false;
+}
+
 static inline int ovs_ct_copy_action(struct net *net, const struct nlattr *nla,
 				     const struct sw_flow_key *key,
 				     struct sw_flow_actions **acts, bool log)
@@ -72,7 +84,7 @@
 	key->ct.state = 0;
 	key->ct.zone = 0;
 	key->ct.mark = 0;
-	memset(&key->ct.label, 0, sizeof(key->ct.label));
+	memset(&key->ct.labels, 0, sizeof(key->ct.labels));
 }
 
 static inline int ovs_ct_put_key(const struct sw_flow_key *key,
diff --git a/net/openvswitch/flow.h b/net/openvswitch/flow.h
index fe527d2..8cfa15a 100644
--- a/net/openvswitch/flow.h
+++ b/net/openvswitch/flow.h
@@ -116,7 +116,7 @@
 		u16 zone;
 		u32 mark;
 		u8 state;
-		struct ovs_key_ct_label label;
+		struct ovs_key_ct_labels labels;
 	} ct;
 
 } __aligned(BITS_PER_LONG/8); /* Ensure that we can do comparisons as longs. */
diff --git a/net/openvswitch/flow_netlink.c b/net/openvswitch/flow_netlink.c
index 5c030a4..171a691 100644
--- a/net/openvswitch/flow_netlink.c
+++ b/net/openvswitch/flow_netlink.c
@@ -291,10 +291,10 @@
 		+ nla_total_size(4)   /* OVS_KEY_ATTR_SKB_MARK */
 		+ nla_total_size(4)   /* OVS_KEY_ATTR_DP_HASH */
 		+ nla_total_size(4)   /* OVS_KEY_ATTR_RECIRC_ID */
-		+ nla_total_size(1)   /* OVS_KEY_ATTR_CT_STATE */
+		+ nla_total_size(4)   /* OVS_KEY_ATTR_CT_STATE */
 		+ nla_total_size(2)   /* OVS_KEY_ATTR_CT_ZONE */
 		+ nla_total_size(4)   /* OVS_KEY_ATTR_CT_MARK */
-		+ nla_total_size(16)  /* OVS_KEY_ATTR_CT_LABEL */
+		+ nla_total_size(16)  /* OVS_KEY_ATTR_CT_LABELS */
 		+ nla_total_size(12)  /* OVS_KEY_ATTR_ETHERNET */
 		+ nla_total_size(2)   /* OVS_KEY_ATTR_ETHERTYPE */
 		+ nla_total_size(4)   /* OVS_KEY_ATTR_VLAN */
@@ -349,10 +349,10 @@
 	[OVS_KEY_ATTR_TUNNEL]	 = { .len = OVS_ATTR_NESTED,
 				     .next = ovs_tunnel_key_lens, },
 	[OVS_KEY_ATTR_MPLS]	 = { .len = sizeof(struct ovs_key_mpls) },
-	[OVS_KEY_ATTR_CT_STATE]	 = { .len = sizeof(u8) },
+	[OVS_KEY_ATTR_CT_STATE]	 = { .len = sizeof(u32) },
 	[OVS_KEY_ATTR_CT_ZONE]	 = { .len = sizeof(u16) },
 	[OVS_KEY_ATTR_CT_MARK]	 = { .len = sizeof(u32) },
-	[OVS_KEY_ATTR_CT_LABEL]	 = { .len = sizeof(struct ovs_key_ct_label) },
+	[OVS_KEY_ATTR_CT_LABELS] = { .len = sizeof(struct ovs_key_ct_labels) },
 };
 
 static bool check_attr_len(unsigned int attr_len, unsigned int expected_len)
@@ -814,7 +814,13 @@
 
 	if (*attrs & (1 << OVS_KEY_ATTR_CT_STATE) &&
 	    ovs_ct_verify(net, OVS_KEY_ATTR_CT_STATE)) {
-		u8 ct_state = nla_get_u8(a[OVS_KEY_ATTR_CT_STATE]);
+		u32 ct_state = nla_get_u32(a[OVS_KEY_ATTR_CT_STATE]);
+
+		if (!is_mask && !ovs_ct_state_supported(ct_state)) {
+			OVS_NLERR(log, "ct_state flags %08x unsupported",
+				  ct_state);
+			return -EINVAL;
+		}
 
 		SW_FLOW_KEY_PUT(match, ct.state, ct_state, is_mask);
 		*attrs &= ~(1ULL << OVS_KEY_ATTR_CT_STATE);
@@ -833,14 +839,14 @@
 		SW_FLOW_KEY_PUT(match, ct.mark, mark, is_mask);
 		*attrs &= ~(1ULL << OVS_KEY_ATTR_CT_MARK);
 	}
-	if (*attrs & (1 << OVS_KEY_ATTR_CT_LABEL) &&
-	    ovs_ct_verify(net, OVS_KEY_ATTR_CT_LABEL)) {
-		const struct ovs_key_ct_label *cl;
+	if (*attrs & (1 << OVS_KEY_ATTR_CT_LABELS) &&
+	    ovs_ct_verify(net, OVS_KEY_ATTR_CT_LABELS)) {
+		const struct ovs_key_ct_labels *cl;
 
-		cl = nla_data(a[OVS_KEY_ATTR_CT_LABEL]);
-		SW_FLOW_KEY_MEMCPY(match, ct.label, cl->ct_label,
+		cl = nla_data(a[OVS_KEY_ATTR_CT_LABELS]);
+		SW_FLOW_KEY_MEMCPY(match, ct.labels, cl->ct_labels,
 				   sizeof(*cl), is_mask);
-		*attrs &= ~(1ULL << OVS_KEY_ATTR_CT_LABEL);
+		*attrs &= ~(1ULL << OVS_KEY_ATTR_CT_LABELS);
 	}
 	return 0;
 }
@@ -1973,7 +1979,7 @@
 	case OVS_KEY_ATTR_PRIORITY:
 	case OVS_KEY_ATTR_SKB_MARK:
 	case OVS_KEY_ATTR_CT_MARK:
-	case OVS_KEY_ATTR_CT_LABEL:
+	case OVS_KEY_ATTR_CT_LABELS:
 	case OVS_KEY_ATTR_ETHERNET:
 		break;
 
diff --git a/net/openvswitch/flow_table.c b/net/openvswitch/flow_table.c
index f2ea83b..c7f74aa 100644
--- a/net/openvswitch/flow_table.c
+++ b/net/openvswitch/flow_table.c
@@ -93,7 +93,8 @@
 
 	/* Initialize the default stat node. */
 	stats = kmem_cache_alloc_node(flow_stats_cache,
-				      GFP_KERNEL | __GFP_ZERO, 0);
+				      GFP_KERNEL | __GFP_ZERO,
+				      node_online(0) ? 0 : NUMA_NO_NODE);
 	if (!stats)
 		goto err;
 
diff --git a/net/openvswitch/vport.c b/net/openvswitch/vport.c
index dc81dc6..12a36ac2 100644
--- a/net/openvswitch/vport.c
+++ b/net/openvswitch/vport.c
@@ -280,35 +280,19 @@
  */
 void ovs_vport_get_stats(struct vport *vport, struct ovs_vport_stats *stats)
 {
-	struct net_device *dev = vport->dev;
-	int i;
+	const struct rtnl_link_stats64 *dev_stats;
+	struct rtnl_link_stats64 temp;
 
-	memset(stats, 0, sizeof(*stats));
-	stats->rx_errors  = dev->stats.rx_errors;
-	stats->tx_errors  = dev->stats.tx_errors;
-	stats->tx_dropped = dev->stats.tx_dropped;
-	stats->rx_dropped = dev->stats.rx_dropped;
+	dev_stats = dev_get_stats(vport->dev, &temp);
+	stats->rx_errors  = dev_stats->rx_errors;
+	stats->tx_errors  = dev_stats->tx_errors;
+	stats->tx_dropped = dev_stats->tx_dropped;
+	stats->rx_dropped = dev_stats->rx_dropped;
 
-	stats->rx_dropped += atomic_long_read(&dev->rx_dropped);
-	stats->tx_dropped += atomic_long_read(&dev->tx_dropped);
-
-	for_each_possible_cpu(i) {
-		const struct pcpu_sw_netstats *percpu_stats;
-		struct pcpu_sw_netstats local_stats;
-		unsigned int start;
-
-		percpu_stats = per_cpu_ptr(dev->tstats, i);
-
-		do {
-			start = u64_stats_fetch_begin_irq(&percpu_stats->syncp);
-			local_stats = *percpu_stats;
-		} while (u64_stats_fetch_retry_irq(&percpu_stats->syncp, start));
-
-		stats->rx_bytes		+= local_stats.rx_bytes;
-		stats->rx_packets	+= local_stats.rx_packets;
-		stats->tx_bytes		+= local_stats.tx_bytes;
-		stats->tx_packets	+= local_stats.tx_packets;
-	}
+	stats->rx_bytes	  = dev_stats->rx_bytes;
+	stats->rx_packets = dev_stats->rx_packets;
+	stats->tx_bytes	  = dev_stats->tx_bytes;
+	stats->tx_packets = dev_stats->tx_packets;
 }
 
 /**
@@ -460,6 +444,15 @@
 
 	OVS_CB(skb)->input_vport = vport;
 	OVS_CB(skb)->mru = 0;
+	if (unlikely(dev_net(skb->dev) != ovs_dp_get_net(vport->dp))) {
+		u32 mark;
+
+		mark = skb->mark;
+		skb_scrub_packet(skb, true);
+		skb->mark = mark;
+		tun_info = NULL;
+	}
+
 	/* Extract flow from 'skb' into 'key'. */
 	error = ovs_flow_key_extract(tun_info, skb, &key);
 	if (unlikely(error)) {
diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c
index 2d1be4a7..32fcdec 100644
--- a/net/sched/act_mirred.c
+++ b/net/sched/act_mirred.c
@@ -31,13 +31,17 @@
 
 #define MIRRED_TAB_MASK     7
 static LIST_HEAD(mirred_list);
+static DEFINE_SPINLOCK(mirred_list_lock);
 
 static void tcf_mirred_release(struct tc_action *a, int bind)
 {
 	struct tcf_mirred *m = to_mirred(a);
 	struct net_device *dev = rcu_dereference_protected(m->tcfm_dev, 1);
 
+	/* We could be called either in a RCU callback or with RTNL lock held. */
+	spin_lock_bh(&mirred_list_lock);
 	list_del(&m->tcfm_list);
+	spin_unlock_bh(&mirred_list_lock);
 	if (dev)
 		dev_put(dev);
 }
@@ -103,10 +107,10 @@
 	} else {
 		if (bind)
 			return 0;
-		if (!ovr) {
-			tcf_hash_release(a, bind);
+
+		tcf_hash_release(a, bind);
+		if (!ovr)
 			return -EEXIST;
-		}
 	}
 	m = to_mirred(a);
 
@@ -123,7 +127,9 @@
 	}
 
 	if (ret == ACT_P_CREATED) {
+		spin_lock_bh(&mirred_list_lock);
 		list_add(&m->tcfm_list, &mirred_list);
+		spin_unlock_bh(&mirred_list_lock);
 		tcf_hash_insert(a);
 	}
 
@@ -173,6 +179,7 @@
 
 	skb2->skb_iif = skb->dev->ifindex;
 	skb2->dev = dev;
+	skb_sender_cpu_clear(skb2);
 	err = dev_queue_xmit(skb2);
 
 	if (err) {
@@ -221,7 +228,8 @@
 	struct tcf_mirred *m;
 
 	ASSERT_RTNL();
-	if (event == NETDEV_UNREGISTER)
+	if (event == NETDEV_UNREGISTER) {
+		spin_lock_bh(&mirred_list_lock);
 		list_for_each_entry(m, &mirred_list, tcfm_list) {
 			if (rcu_access_pointer(m->tcfm_dev) == dev) {
 				dev_put(dev);
@@ -231,6 +239,8 @@
 				RCU_INIT_POINTER(m->tcfm_dev, NULL);
 			}
 		}
+		spin_unlock_bh(&mirred_list_lock);
+	}
 
 	return NOTIFY_DONE;
 }
diff --git a/net/sched/sch_hhf.c b/net/sched/sch_hhf.c
index 9d15cb6..86b04e3 100644
--- a/net/sched/sch_hhf.c
+++ b/net/sched/sch_hhf.c
@@ -368,6 +368,15 @@
 	return bucket - q->buckets;
 }
 
+static unsigned int hhf_qdisc_drop(struct Qdisc *sch)
+{
+	unsigned int prev_backlog;
+
+	prev_backlog = sch->qstats.backlog;
+	hhf_drop(sch);
+	return prev_backlog - sch->qstats.backlog;
+}
+
 static int hhf_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 {
 	struct hhf_sched_data *q = qdisc_priv(sch);
@@ -696,7 +705,7 @@
 	.enqueue	=	hhf_enqueue,
 	.dequeue	=	hhf_dequeue,
 	.peek		=	qdisc_peek_dequeued,
-	.drop		=	hhf_drop,
+	.drop		=	hhf_qdisc_drop,
 	.init		=	hhf_init,
 	.reset		=	hhf_reset,
 	.destroy	=	hhf_destroy,
diff --git a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
index 5f6ca47..f0c3ff6 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
@@ -533,7 +533,7 @@
 	rqstp->rq_arg.page_base = head->arg.page_base;
 
 	/* rq_respages starts after the last arg page */
-	rqstp->rq_respages = &rqstp->rq_arg.pages[page_no];
+	rqstp->rq_respages = &rqstp->rq_pages[page_no];
 	rqstp->rq_next_page = rqstp->rq_respages + 1;
 
 	/* Rebuild rq_arg head and tail. */
diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index 8a477e2..5502d4d 100644
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -543,11 +543,8 @@
 	}
 
 	if (memreg == RPCRDMA_FRMR) {
-		/* Requires both frmr reg and local dma lkey */
-		if (((devattr->device_cap_flags &
-		     (IB_DEVICE_MEM_MGT_EXTENSIONS|IB_DEVICE_LOCAL_DMA_LKEY)) !=
-		    (IB_DEVICE_MEM_MGT_EXTENSIONS|IB_DEVICE_LOCAL_DMA_LKEY)) ||
-		      (devattr->max_fast_reg_page_list_len == 0)) {
+		if (!(devattr->device_cap_flags & IB_DEVICE_MEM_MGT_EXTENSIONS) ||
+		    (devattr->max_fast_reg_page_list_len == 0)) {
 			dprintk("RPC:       %s: FRMR registration "
 				"not supported by HCA\n", __func__);
 			memreg = RPCRDMA_MTHCAFMR;
@@ -557,6 +554,7 @@
 		if (!ia->ri_device->alloc_fmr) {
 			dprintk("RPC:       %s: MTHCAFMR registration "
 				"not supported by HCA\n", __func__);
+			rc = -EINVAL;
 			goto out3;
 		}
 	}
diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c
index fda38f8..77f5d17e 100644
--- a/net/switchdev/switchdev.c
+++ b/net/switchdev/switchdev.c
@@ -16,6 +16,7 @@
 #include <linux/notifier.h>
 #include <linux/netdevice.h>
 #include <linux/if_bridge.h>
+#include <linux/if_vlan.h>
 #include <net/ip_fib.h>
 #include <net/switchdev.h>
 
@@ -634,6 +635,8 @@
 		if (nla_len(attr) != sizeof(struct bridge_vlan_info))
 			return -EINVAL;
 		vinfo = nla_data(attr);
+		if (!vinfo->vid || vinfo->vid >= VLAN_VID_MASK)
+			return -EINVAL;
 		vlan->flags = vinfo->flags;
 		if (vinfo->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) {
 			if (vlan->vid_begin)
diff --git a/net/tipc/msg.h b/net/tipc/msg.h
index a82c584..5351a3f 100644
--- a/net/tipc/msg.h
+++ b/net/tipc/msg.h
@@ -357,7 +357,7 @@
 	if (likely((usr <= TIPC_CRITICAL_IMPORTANCE) && !msg_errcode(m)))
 		return usr;
 	if ((usr == MSG_FRAGMENTER) || (usr == MSG_BUNDLER))
-		return msg_bits(m, 5, 13, 0x7);
+		return msg_bits(m, 9, 0, 0x7);
 	return TIPC_SYSTEM_IMPORTANCE;
 }
 
@@ -366,7 +366,7 @@
 	int usr = msg_user(m);
 
 	if (likely((usr == MSG_FRAGMENTER) || (usr == MSG_BUNDLER)))
-		msg_set_bits(m, 5, 13, 0x7, i);
+		msg_set_bits(m, 9, 0, 0x7, i);
 	else if (i < TIPC_SYSTEM_IMPORTANCE)
 		msg_set_user(m, i);
 	else
diff --git a/net/tipc/node.c b/net/tipc/node.c
index 703875f..2c32a83 100644
--- a/net/tipc/node.c
+++ b/net/tipc/node.c
@@ -1116,7 +1116,7 @@
 	}
 
 	/* Ignore duplicate packets */
-	if (less(oseqno, rcv_nxt))
+	if ((usr != LINK_PROTOCOL) && less(oseqno, rcv_nxt))
 		return true;
 
 	/* Initiate or update failover mode if applicable */
@@ -1146,8 +1146,8 @@
 	if (!pl || !tipc_link_is_up(pl))
 		return true;
 
-	/* Initiate or update synch mode if applicable */
-	if ((usr == TUNNEL_PROTOCOL) && (mtyp == SYNCH_MSG)) {
+	/* Initiate synch mode if applicable */
+	if ((usr == TUNNEL_PROTOCOL) && (mtyp == SYNCH_MSG) && (oseqno == 1)) {
 		syncpt = iseqno + exp_pkts - 1;
 		if (!tipc_link_is_up(l)) {
 			tipc_link_fsm_evt(l, LINK_ESTABLISH_EVT);
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index ef31b40..94f6582 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -2064,6 +2064,11 @@
 		goto out;
 	}
 
+	if (flags & MSG_PEEK)
+		skip = sk_peek_offset(sk, flags);
+	else
+		skip = 0;
+
 	do {
 		int chunk;
 		struct sk_buff *skb, *last;
@@ -2112,7 +2117,6 @@
 			break;
 		}
 
-		skip = sk_peek_offset(sk, flags);
 		while (skip >= unix_skb_len(skb)) {
 			skip -= unix_skb_len(skb);
 			last = skb;
@@ -2179,14 +2183,12 @@
 			if (UNIXCB(skb).fp)
 				scm.fp = scm_fp_dup(UNIXCB(skb).fp);
 
-			if (skip) {
-				sk_peek_offset_fwd(sk, chunk);
-				skip -= chunk;
-			}
+			sk_peek_offset_fwd(sk, chunk);
 
 			if (UNIXCB(skb).fp)
 				break;
 
+			skip = 0;
 			last = skb;
 			last_len = skb->len;
 			unix_state_lock(sk);
diff --git a/scripts/package/builddeb b/scripts/package/builddeb
index 0cd46e1..b967e4f 100755
--- a/scripts/package/builddeb
+++ b/scripts/package/builddeb
@@ -115,7 +115,7 @@
 BUILD_DEBUG="$(grep -s '^CONFIG_DEBUG_INFO=y' $KCONFIG_CONFIG || true)"
 
 # Setup the directory structure
-rm -rf "$tmpdir" "$fwdir" "$kernel_headers_dir" "$libc_headers_dir" "$dbg_dir"
+rm -rf "$tmpdir" "$fwdir" "$kernel_headers_dir" "$libc_headers_dir" "$dbg_dir" $objtree/debian/files
 mkdir -m 755 -p "$tmpdir/DEBIAN"
 mkdir -p "$tmpdir/lib" "$tmpdir/boot"
 mkdir -p "$fwdir/lib/firmware/$version/"
@@ -408,7 +408,7 @@
 	\$(MAKE) KDEB_SOURCENAME=${sourcename} KDEB_PKGVERSION=${packageversion} bindeb-pkg
 
 clean:
-	rm -rf debian/*tmp
+	rm -rf debian/*tmp debian/files
 	mv debian/ debian.backup # debian/ might be cleaned away
 	\$(MAKE) clean
 	mv debian.backup debian
diff --git a/security/keys/gc.c b/security/keys/gc.c
index 39eac1f..addf060 100644
--- a/security/keys/gc.c
+++ b/security/keys/gc.c
@@ -134,8 +134,10 @@
 		kdebug("- %u", key->serial);
 		key_check(key);
 
-		/* Throw away the key data */
-		if (key->type->destroy)
+		/* Throw away the key data if the key is instantiated */
+		if (test_bit(KEY_FLAG_INSTANTIATED, &key->flags) &&
+		    !test_bit(KEY_FLAG_NEGATIVE, &key->flags) &&
+		    key->type->destroy)
 			key->type->destroy(key);
 
 		security_key_free(key);
diff --git a/security/keys/request_key.c b/security/keys/request_key.c
index 486ef6f..0d62531 100644
--- a/security/keys/request_key.c
+++ b/security/keys/request_key.c
@@ -440,6 +440,9 @@
 
 	kenter("");
 
+	if (ctx->index_key.type == &key_type_keyring)
+		return ERR_PTR(-EPERM);
+	
 	user = key_user_lookup(current_fsuid());
 	if (!user)
 		return ERR_PTR(-ENOMEM);
diff --git a/sound/hda/ext/hdac_ext_bus.c b/sound/hda/ext/hdac_ext_bus.c
index 4449d1a9..2433f7c 100644
--- a/sound/hda/ext/hdac_ext_bus.c
+++ b/sound/hda/ext/hdac_ext_bus.c
@@ -19,6 +19,7 @@
 
 #include <linux/module.h>
 #include <linux/slab.h>
+#include <linux/io.h>
 #include <sound/hdaudio_ext.h>
 
 MODULE_DESCRIPTION("HDA extended core");
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 37f43a1..a249d54 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -3367,10 +3367,8 @@
 	int dev, err;
 
 	err = snd_hda_codec_parse_pcms(codec);
-	if (err < 0) {
-		snd_hda_codec_reset(codec);
+	if (err < 0)
 		return err;
-	}
 
 	/* attach a new PCM streams */
 	list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index ca03c40..2f0ec7c 100644
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -819,6 +819,7 @@
 	SND_PCI_QUIRK(0x17aa, 0x21da, "Lenovo X220", CXT_PINCFG_LENOVO_TP410),
 	SND_PCI_QUIRK(0x17aa, 0x21db, "Lenovo X220-tablet", CXT_PINCFG_LENOVO_TP410),
 	SND_PCI_QUIRK(0x17aa, 0x38af, "Lenovo IdeaPad Z560", CXT_FIXUP_MUTE_LED_EAPD),
+	SND_PCI_QUIRK(0x17aa, 0x390b, "Lenovo G50-80", CXT_FIXUP_STEREO_DMIC),
 	SND_PCI_QUIRK(0x17aa, 0x3975, "Lenovo U300s", CXT_FIXUP_STEREO_DMIC),
 	SND_PCI_QUIRK(0x17aa, 0x3977, "Lenovo IdeaPad U310", CXT_FIXUP_STEREO_DMIC),
 	SND_PCI_QUIRK(0x17aa, 0x397b, "Lenovo S205", CXT_FIXUP_STEREO_DMIC),
diff --git a/sound/soc/codecs/rt298.c b/sound/soc/codecs/rt298.c
index 3c2f0f8..f823eb5 100644
--- a/sound/soc/codecs/rt298.c
+++ b/sound/soc/codecs/rt298.c
@@ -50,24 +50,24 @@
 };
 
 static struct reg_default rt298_index_def[] = {
-	{ 0x01, 0xaaaa },
-	{ 0x02, 0x8aaa },
+	{ 0x01, 0xa5a8 },
+	{ 0x02, 0x8e95 },
 	{ 0x03, 0x0002 },
-	{ 0x04, 0xaf01 },
-	{ 0x08, 0x000d },
-	{ 0x09, 0xd810 },
-	{ 0x0a, 0x0120 },
+	{ 0x04, 0xaf67 },
+	{ 0x08, 0x200f },
+	{ 0x09, 0xd010 },
+	{ 0x0a, 0x0100 },
 	{ 0x0b, 0x0000 },
 	{ 0x0d, 0x2800 },
-	{ 0x0f, 0x0000 },
-	{ 0x19, 0x0a17 },
+	{ 0x0f, 0x0022 },
+	{ 0x19, 0x0217 },
 	{ 0x20, 0x0020 },
 	{ 0x33, 0x0208 },
 	{ 0x46, 0x0300 },
-	{ 0x49, 0x0004 },
-	{ 0x4f, 0x50e9 },
-	{ 0x50, 0x2000 },
-	{ 0x63, 0x2902 },
+	{ 0x49, 0x4004 },
+	{ 0x4f, 0x50c9 },
+	{ 0x50, 0x3000 },
+	{ 0x63, 0x1b02 },
 	{ 0x67, 0x1111 },
 	{ 0x68, 0x1016 },
 	{ 0x69, 0x273f },
@@ -1214,7 +1214,7 @@
 	mdelay(10);
 
 	if (!rt298->pdata.gpio2_en)
-		regmap_write(rt298->regmap, RT298_SET_DMIC2_DEFAULT, 0x4000);
+		regmap_write(rt298->regmap, RT298_SET_DMIC2_DEFAULT, 0x40);
 	else
 		regmap_write(rt298->regmap, RT298_SET_DMIC2_DEFAULT, 0);
 
diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
index 2fbc6ef..39ebd7b 100644
--- a/sound/soc/codecs/wm8962.c
+++ b/sound/soc/codecs/wm8962.c
@@ -3808,6 +3808,8 @@
 
 	wm8962_reset(wm8962);
 
+	regcache_mark_dirty(wm8962->regmap);
+
 	/* SYSCLK defaults to on; make sure it is off so we can safely
 	 * write to registers if the device is declocked.
 	 */
diff --git a/sound/soc/soc-ops.c b/sound/soc/soc-ops.c
index 100d92b..05977ae 100644
--- a/sound/soc/soc-ops.c
+++ b/sound/soc/soc-ops.c
@@ -207,6 +207,34 @@
 EXPORT_SYMBOL_GPL(snd_soc_info_volsw);
 
 /**
+ * snd_soc_info_volsw_sx - Mixer info callback for SX TLV controls
+ * @kcontrol: mixer control
+ * @uinfo: control element information
+ *
+ * Callback to provide information about a single mixer control, or a double
+ * mixer control that spans 2 registers of the SX TLV type. SX TLV controls
+ * have a range that represents both positive and negative values either side
+ * of zero but without a sign bit.
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_info_volsw_sx(struct snd_kcontrol *kcontrol,
+			  struct snd_ctl_elem_info *uinfo)
+{
+	struct soc_mixer_control *mc =
+		(struct soc_mixer_control *)kcontrol->private_value;
+
+	snd_soc_info_volsw(kcontrol, uinfo);
+	/* Max represents the number of levels in an SX control not the
+	 * maximum value, so add the minimum value back on
+	 */
+	uinfo->value.integer.max += mc->min;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_info_volsw_sx);
+
+/**
  * snd_soc_get_volsw - single mixer get callback
  * @kcontrol: mixer control
  * @ucontrol: control element information
diff --git a/tools/power/acpi/tools/acpidump/apfiles.c b/tools/power/acpi/tools/acpidump/apfiles.c
index a37f970..a1c62de 100644
--- a/tools/power/acpi/tools/acpidump/apfiles.c
+++ b/tools/power/acpi/tools/acpidump/apfiles.c
@@ -150,7 +150,7 @@
 		strcat(filename, instance_str);
 	}
 
-	strcat(filename, ACPI_TABLE_FILE_SUFFIX);
+	strcat(filename, FILE_SUFFIX_BINARY_TABLE);
 
 	if (gbl_verbose_mode) {
 		acpi_log_error
diff --git a/tools/testing/selftests/powerpc/primitives/load_unaligned_zeropad.c b/tools/testing/selftests/powerpc/primitives/load_unaligned_zeropad.c
index d1b6475..6cae061 100644
--- a/tools/testing/selftests/powerpc/primitives/load_unaligned_zeropad.c
+++ b/tools/testing/selftests/powerpc/primitives/load_unaligned_zeropad.c
@@ -25,10 +25,19 @@
 
 #define FIXUP_SECTION ".ex_fixup"
 
+static inline unsigned long __fls(unsigned long x);
+
 #include "word-at-a-time.h"
 
 #include "utils.h"
 
+static inline unsigned long __fls(unsigned long x)
+{
+	int lz;
+
+	asm (PPC_CNTLZL "%0,%1" : "=r" (lz) : "r" (x));
+	return sizeof(unsigned long) - 1 - lz;
+}
 
 static int page_size;
 static char *mem_region;
diff --git a/virt/kvm/arm/arch_timer.c b/virt/kvm/arm/arch_timer.c
index 48c6e1a..b9d3a32 100644
--- a/virt/kvm/arm/arch_timer.c
+++ b/virt/kvm/arm/arch_timer.c
@@ -137,6 +137,8 @@
 void kvm_timer_flush_hwstate(struct kvm_vcpu *vcpu)
 {
 	struct arch_timer_cpu *timer = &vcpu->arch.timer_cpu;
+	bool phys_active;
+	int ret;
 
 	/*
 	 * We're about to run this vcpu again, so there is no need to
@@ -151,6 +153,23 @@
 	 */
 	if (kvm_timer_should_fire(vcpu))
 		kvm_timer_inject_irq(vcpu);
+
+	/*
+	 * We keep track of whether the edge-triggered interrupt has been
+	 * signalled to the vgic/guest, and if so, we mask the interrupt and
+	 * the physical distributor to prevent the timer from raising a
+	 * physical interrupt whenever we run a guest, preventing forward
+	 * VCPU progress.
+	 */
+	if (kvm_vgic_get_phys_irq_active(timer->map))
+		phys_active = true;
+	else
+		phys_active = false;
+
+	ret = irq_set_irqchip_state(timer->map->irq,
+				    IRQCHIP_STATE_ACTIVE,
+				    phys_active);
+	WARN_ON(ret);
 }
 
 /**
diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c
index 6bd1c9b..66c6616 100644
--- a/virt/kvm/arm/vgic.c
+++ b/virt/kvm/arm/vgic.c
@@ -531,6 +531,34 @@
 	return false;
 }
 
+/*
+ * If a mapped interrupt's state has been modified by the guest such that it
+ * is no longer active or pending, without it have gone through the sync path,
+ * then the map->active field must be cleared so the interrupt can be taken
+ * again.
+ */
+static void vgic_handle_clear_mapped_irq(struct kvm_vcpu *vcpu)
+{
+	struct vgic_cpu *vgic_cpu = &vcpu->arch.vgic_cpu;
+	struct list_head *root;
+	struct irq_phys_map_entry *entry;
+	struct irq_phys_map *map;
+
+	rcu_read_lock();
+
+	/* Check for PPIs */
+	root = &vgic_cpu->irq_phys_map_list;
+	list_for_each_entry_rcu(entry, root, entry) {
+		map = &entry->map;
+
+		if (!vgic_dist_irq_is_pending(vcpu, map->virt_irq) &&
+		    !vgic_irq_is_active(vcpu, map->virt_irq))
+			map->active = false;
+	}
+
+	rcu_read_unlock();
+}
+
 bool vgic_handle_clear_pending_reg(struct kvm *kvm,
 				   struct kvm_exit_mmio *mmio,
 				   phys_addr_t offset, int vcpu_id)
@@ -561,6 +589,7 @@
 					  vcpu_id, offset);
 		vgic_reg_access(mmio, reg, offset, mode);
 
+		vgic_handle_clear_mapped_irq(kvm_get_vcpu(kvm, vcpu_id));
 		vgic_update_state(kvm);
 		return true;
 	}
@@ -598,6 +627,7 @@
 			ACCESS_READ_VALUE | ACCESS_WRITE_CLEARBIT);
 
 	if (mmio->is_write) {
+		vgic_handle_clear_mapped_irq(kvm_get_vcpu(kvm, vcpu_id));
 		vgic_update_state(kvm);
 		return true;
 	}
@@ -982,6 +1012,12 @@
 	pend_percpu = vcpu->arch.vgic_cpu.pending_percpu;
 	pend_shared = vcpu->arch.vgic_cpu.pending_shared;
 
+	if (!dist->enabled) {
+		bitmap_zero(pend_percpu, VGIC_NR_PRIVATE_IRQS);
+		bitmap_zero(pend_shared, nr_shared);
+		return 0;
+	}
+
 	pending = vgic_bitmap_get_cpu_map(&dist->irq_pending, vcpu_id);
 	enabled = vgic_bitmap_get_cpu_map(&dist->irq_enabled, vcpu_id);
 	bitmap_and(pend_percpu, pending, enabled, VGIC_NR_PRIVATE_IRQS);
@@ -1009,11 +1045,6 @@
 	struct kvm_vcpu *vcpu;
 	int c;
 
-	if (!dist->enabled) {
-		set_bit(0, dist->irq_pending_on_cpu);
-		return;
-	}
-
 	kvm_for_each_vcpu(c, vcpu, kvm) {
 		if (compute_pending_for_cpu(vcpu))
 			set_bit(c, dist->irq_pending_on_cpu);
@@ -1092,6 +1123,15 @@
 	struct vgic_cpu *vgic_cpu = &vcpu->arch.vgic_cpu;
 	struct vgic_lr vlr = vgic_get_lr(vcpu, lr_nr);
 
+	/*
+	 * We must transfer the pending state back to the distributor before
+	 * retiring the LR, otherwise we may loose edge-triggered interrupts.
+	 */
+	if (vlr.state & LR_STATE_PENDING) {
+		vgic_dist_irq_set_pending(vcpu, irq);
+		vlr.hwirq = 0;
+	}
+
 	vlr.state = 0;
 	vgic_set_lr(vcpu, lr_nr, vlr);
 	clear_bit(lr_nr, vgic_cpu->lr_used);
@@ -1132,7 +1172,8 @@
 		kvm_debug("Set active, clear distributor: 0x%x\n", vlr.state);
 		vgic_irq_clear_active(vcpu, irq);
 		vgic_update_state(vcpu->kvm);
-	} else if (vgic_dist_irq_is_pending(vcpu, irq)) {
+	} else {
+		WARN_ON(!vgic_dist_irq_is_pending(vcpu, irq));
 		vlr.state |= LR_STATE_PENDING;
 		kvm_debug("Set pending: 0x%x\n", vlr.state);
 	}
@@ -1240,7 +1281,7 @@
 	struct vgic_cpu *vgic_cpu = &vcpu->arch.vgic_cpu;
 	struct vgic_dist *dist = &vcpu->kvm->arch.vgic;
 	unsigned long *pa_percpu, *pa_shared;
-	int i, vcpu_id, lr, ret;
+	int i, vcpu_id;
 	int overflow = 0;
 	int nr_shared = vgic_nr_shared_irqs(dist);
 
@@ -1295,31 +1336,6 @@
 		 */
 		clear_bit(vcpu_id, dist->irq_pending_on_cpu);
 	}
-
-	for (lr = 0; lr < vgic->nr_lr; lr++) {
-		struct vgic_lr vlr;
-
-		if (!test_bit(lr, vgic_cpu->lr_used))
-			continue;
-
-		vlr = vgic_get_lr(vcpu, lr);
-
-		/*
-		 * If we have a mapping, and the virtual interrupt is
-		 * presented to the guest (as pending or active), then we must
-		 * set the state to active in the physical world. See
-		 * Documentation/virtual/kvm/arm/vgic-mapped-irqs.txt.
-		 */
-		if (vlr.state & LR_HW) {
-			struct irq_phys_map *map;
-			map = vgic_irq_map_search(vcpu, vlr.irq);
-
-			ret = irq_set_irqchip_state(map->irq,
-						    IRQCHIP_STATE_ACTIVE,
-						    true);
-			WARN_ON(ret);
-		}
-	}
 }
 
 static bool vgic_process_maintenance(struct kvm_vcpu *vcpu)
@@ -1421,7 +1437,7 @@
 		return 0;
 
 	map = vgic_irq_map_search(vcpu, vlr.irq);
-	BUG_ON(!map || !map->active);
+	BUG_ON(!map);
 
 	ret = irq_get_irqchip_state(map->irq,
 				    IRQCHIP_STATE_ACTIVE,
@@ -1429,13 +1445,8 @@
 
 	WARN_ON(ret);
 
-	if (map->active) {
-		ret = irq_set_irqchip_state(map->irq,
-					    IRQCHIP_STATE_ACTIVE,
-					    false);
-		WARN_ON(ret);
+	if (map->active)
 		return 0;
-	}
 
 	return 1;
 }
@@ -1607,8 +1618,12 @@
 	} else {
 		if (level_triggered) {
 			vgic_dist_irq_clear_level(vcpu, irq_num);
-			if (!vgic_dist_irq_soft_pend(vcpu, irq_num))
+			if (!vgic_dist_irq_soft_pend(vcpu, irq_num)) {
 				vgic_dist_irq_clear_pending(vcpu, irq_num);
+				vgic_cpu_irq_clear(vcpu, irq_num);
+				if (!compute_pending_for_cpu(vcpu))
+					clear_bit(cpuid, dist->irq_pending_on_cpu);
+			}
 		}
 
 		ret = false;