Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 1 | config ARM64 |
| 2 | def_bool y |
Arun Chandran | 9298040 | 2014-10-10 12:31:24 +0100 | [diff] [blame] | 3 | select ARCH_BINFMT_ELF_RANDOMIZE_PIE |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 4 | select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE |
Laura Abbott | 308c09f | 2014-08-08 14:23:25 -0700 | [diff] [blame] | 5 | select ARCH_HAS_SG_CHAIN |
Lorenzo Pieralisi | 1f85008 | 2013-09-04 10:55:17 +0100 | [diff] [blame] | 6 | select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST |
Sudeep Holla | c63c870 | 2014-05-09 10:33:01 +0100 | [diff] [blame] | 7 | select ARCH_USE_CMPXCHG_LOCKREF |
Peter Zijlstra | 4badad3 | 2014-06-06 19:53:16 +0200 | [diff] [blame] | 8 | select ARCH_SUPPORTS_ATOMIC_RMW |
Arnd Bergmann | 9170100 | 2013-02-21 11:42:57 +0100 | [diff] [blame] | 9 | select ARCH_WANT_OPTIONAL_GPIOLIB |
Will Deacon | 6212a51 | 2012-11-07 14:16:28 +0000 | [diff] [blame] | 10 | select ARCH_WANT_COMPAT_IPC_PARSE_VERSION |
Catalin Marinas | b6f3598 | 2013-01-29 18:25:41 +0000 | [diff] [blame] | 11 | select ARCH_WANT_FRAME_POINTERS |
Catalin Marinas | 25c92a3 | 2012-12-18 15:26:13 +0000 | [diff] [blame] | 12 | select ARM_AMBA |
Mark Rutland | 1aee5d7 | 2012-11-20 10:06:00 +0000 | [diff] [blame] | 13 | select ARM_ARCH_TIMER |
Catalin Marinas | c4188ed | 2013-01-14 12:39:31 +0000 | [diff] [blame] | 14 | select ARM_GIC |
AKASHI Takahiro | 875cbf3 | 2014-07-04 08:28:30 +0100 | [diff] [blame] | 15 | select AUDIT_ARCH_COMPAT_GENERIC |
Marc Zyngier | 021f653 | 2014-06-30 16:01:31 +0100 | [diff] [blame] | 16 | select ARM_GIC_V3 |
Will Deacon | adace89 | 2013-05-08 17:29:24 +0100 | [diff] [blame] | 17 | select BUILDTIME_EXTABLE_SORT |
Catalin Marinas | db2789b | 2012-12-18 15:27:25 +0000 | [diff] [blame] | 18 | select CLONE_BACKWARDS |
Deepak Saxena | 7ca2ef33e | 2012-09-22 10:33:36 -0700 | [diff] [blame] | 19 | select COMMON_CLK |
Lorenzo Pieralisi | 166936b | 2013-11-07 18:37:14 +0000 | [diff] [blame] | 20 | select CPU_PM if (SUSPEND || CPU_IDLE) |
Will Deacon | 7bc13fd | 2013-11-06 19:32:13 +0000 | [diff] [blame] | 21 | select DCACHE_WORD_ACCESS |
Laura Abbott | d4932f9 | 2014-10-09 15:26:44 -0700 | [diff] [blame] | 22 | select GENERIC_ALLOCATOR |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 23 | select GENERIC_CLOCKEVENTS |
Lorenzo Pieralisi | 1f85008 | 2013-09-04 10:55:17 +0100 | [diff] [blame] | 24 | select GENERIC_CLOCKEVENTS_BROADCAST if SMP |
Ard Biesheuvel | 3be1a5c | 2014-03-04 01:10:04 +0000 | [diff] [blame] | 25 | select GENERIC_CPU_AUTOPROBE |
Mark Salter | bf4b558 | 2014-04-07 15:39:52 -0700 | [diff] [blame] | 26 | select GENERIC_EARLY_IOREMAP |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 27 | select GENERIC_IOMAP |
| 28 | select GENERIC_IRQ_PROBE |
| 29 | select GENERIC_IRQ_SHOW |
Stephen Boyd | 65cd4f6 | 2013-07-18 16:21:18 -0700 | [diff] [blame] | 30 | select GENERIC_SCHED_CLOCK |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 31 | select GENERIC_SMP_IDLE_THREAD |
Will Deacon | 12a0ef7 | 2013-11-06 17:20:22 +0000 | [diff] [blame] | 32 | select GENERIC_STRNCPY_FROM_USER |
| 33 | select GENERIC_STRNLEN_USER |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 34 | select GENERIC_TIME_VSYSCALL |
Marc Zyngier | a1ddc74 | 2014-08-26 11:03:17 +0100 | [diff] [blame] | 35 | select HANDLE_DOMAIN_IRQ |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 36 | select HARDIRQS_SW_RESEND |
AKASHI Takahiro | 875cbf3 | 2014-07-04 08:28:30 +0100 | [diff] [blame] | 37 | select HAVE_ARCH_AUDITSYSCALL |
Jiang Liu | 9732caf | 2014-01-07 22:17:13 +0800 | [diff] [blame] | 38 | select HAVE_ARCH_JUMP_LABEL |
Vijaya Kumar K | 9529247 | 2014-01-28 11:20:22 +0000 | [diff] [blame] | 39 | select HAVE_ARCH_KGDB |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 40 | select HAVE_ARCH_TRACEHOOK |
Zi Shen Lim | e54bcde | 2014-08-26 21:15:30 -0700 | [diff] [blame] | 41 | select HAVE_BPF_JIT |
AKASHI Takahiro | af64d2a | 2014-04-30 10:54:32 +0100 | [diff] [blame] | 42 | select HAVE_C_RECORDMCOUNT |
Laura Abbott | c0c264a | 2014-06-25 23:55:03 +0100 | [diff] [blame] | 43 | select HAVE_CC_STACKPROTECTOR |
Catalin Marinas | 9b2a60c | 2012-10-08 16:28:13 -0700 | [diff] [blame] | 44 | select HAVE_DEBUG_BUGVERBOSE |
Catalin Marinas | b69ec42 | 2012-10-08 16:28:11 -0700 | [diff] [blame] | 45 | select HAVE_DEBUG_KMEMLEAK |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 46 | select HAVE_DMA_API_DEBUG |
| 47 | select HAVE_DMA_ATTRS |
Laura Abbott | 6ac2104 | 2013-12-12 19:28:33 +0000 | [diff] [blame] | 48 | select HAVE_DMA_CONTIGUOUS |
AKASHI Takahiro | bd7d38d | 2014-04-30 10:54:34 +0100 | [diff] [blame] | 49 | select HAVE_DYNAMIC_FTRACE |
Will Deacon | 50afc33 | 2013-12-16 17:50:08 +0000 | [diff] [blame] | 50 | select HAVE_EFFICIENT_UNALIGNED_ACCESS |
AKASHI Takahiro | af64d2a | 2014-04-30 10:54:32 +0100 | [diff] [blame] | 51 | select HAVE_FTRACE_MCOUNT_RECORD |
AKASHI Takahiro | 819e50e | 2014-04-30 18:54:33 +0900 | [diff] [blame] | 52 | select HAVE_FUNCTION_TRACER |
| 53 | select HAVE_FUNCTION_GRAPH_TRACER |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 54 | select HAVE_GENERIC_DMA_COHERENT |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 55 | select HAVE_HW_BREAKPOINT if PERF_EVENTS |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 56 | select HAVE_MEMBLOCK |
Mark Rutland | 55834a7 | 2014-02-07 17:12:45 +0000 | [diff] [blame] | 57 | select HAVE_PATA_PLATFORM |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 58 | select HAVE_PERF_EVENTS |
Jean Pihet | 2ee0d7f | 2014-02-03 19:18:27 +0100 | [diff] [blame] | 59 | select HAVE_PERF_REGS |
| 60 | select HAVE_PERF_USER_STACK_DUMP |
Steve Capper | 5e5f6dc | 2014-10-09 15:29:23 -0700 | [diff] [blame] | 61 | select HAVE_RCU_TABLE_FREE |
AKASHI Takahiro | 055b121 | 2014-04-30 10:54:36 +0100 | [diff] [blame] | 62 | select HAVE_SYSCALL_TRACEPOINTS |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 63 | select IRQ_DOMAIN |
Catalin Marinas | fea2aca | 2012-10-16 11:26:57 +0100 | [diff] [blame] | 64 | select MODULES_USE_ELF_RELA |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 65 | select NO_BOOTMEM |
| 66 | select OF |
| 67 | select OF_EARLY_FLATTREE |
Marek Szyprowski | 9bf14b7 | 2014-02-28 14:42:55 +0100 | [diff] [blame] | 68 | select OF_RESERVED_MEM |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 69 | select PERF_USE_VMALLOC |
Catalin Marinas | aa1e8ec1 | 2013-02-28 18:14:37 +0000 | [diff] [blame] | 70 | select POWER_RESET |
| 71 | select POWER_SUPPLY |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 72 | select RTC_LIB |
| 73 | select SPARSE_IRQ |
Catalin Marinas | 7ac57a8 | 2012-10-08 16:28:16 -0700 | [diff] [blame] | 74 | select SYSCTL_EXCEPTION_TRACE |
Larry Bassel | 6c81fe7 | 2014-05-30 12:34:15 -0700 | [diff] [blame] | 75 | select HAVE_CONTEXT_TRACKING |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 76 | help |
| 77 | ARM 64-bit (AArch64) Linux support. |
| 78 | |
| 79 | config 64BIT |
| 80 | def_bool y |
| 81 | |
| 82 | config ARCH_PHYS_ADDR_T_64BIT |
| 83 | def_bool y |
| 84 | |
| 85 | config MMU |
| 86 | def_bool y |
| 87 | |
Uwe Kleine-König | ce816fa | 2014-04-07 15:39:19 -0700 | [diff] [blame] | 88 | config NO_IOPORT_MAP |
Liviu Dudau | d1e6dc9 | 2014-09-29 15:29:31 +0100 | [diff] [blame] | 89 | def_bool y if !PCI |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 90 | |
| 91 | config STACKTRACE_SUPPORT |
| 92 | def_bool y |
| 93 | |
| 94 | config LOCKDEP_SUPPORT |
| 95 | def_bool y |
| 96 | |
| 97 | config TRACE_IRQFLAGS_SUPPORT |
| 98 | def_bool y |
| 99 | |
Will Deacon | c209f79 | 2014-03-14 17:47:05 +0000 | [diff] [blame] | 100 | config RWSEM_XCHGADD_ALGORITHM |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 101 | def_bool y |
| 102 | |
| 103 | config GENERIC_HWEIGHT |
| 104 | def_bool y |
| 105 | |
| 106 | config GENERIC_CSUM |
| 107 | def_bool y |
| 108 | |
| 109 | config GENERIC_CALIBRATE_DELAY |
| 110 | def_bool y |
| 111 | |
Catalin Marinas | 19e7640 | 2014-02-27 12:09:22 +0000 | [diff] [blame] | 112 | config ZONE_DMA |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 113 | def_bool y |
| 114 | |
Steve Capper | 29e5694 | 2014-10-09 15:29:25 -0700 | [diff] [blame] | 115 | config HAVE_GENERIC_RCU_GUP |
| 116 | def_bool y |
| 117 | |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 118 | config ARCH_DMA_ADDR_T_64BIT |
| 119 | def_bool y |
| 120 | |
| 121 | config NEED_DMA_MAP_STATE |
| 122 | def_bool y |
| 123 | |
| 124 | config NEED_SG_DMA_LENGTH |
| 125 | def_bool y |
| 126 | |
| 127 | config SWIOTLB |
| 128 | def_bool y |
| 129 | |
| 130 | config IOMMU_HELPER |
| 131 | def_bool SWIOTLB |
| 132 | |
Ard Biesheuvel | 4cfb361 | 2013-07-09 14:18:12 +0100 | [diff] [blame] | 133 | config KERNEL_MODE_NEON |
| 134 | def_bool y |
| 135 | |
Rob Herring | 92cc15f | 2014-04-18 17:19:59 -0500 | [diff] [blame] | 136 | config FIX_EARLYCON_MEM |
| 137 | def_bool y |
| 138 | |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 139 | source "init/Kconfig" |
| 140 | |
| 141 | source "kernel/Kconfig.freezer" |
| 142 | |
Catalin Marinas | 1ae90e7 | 2012-09-05 17:47:44 +0100 | [diff] [blame] | 143 | menu "Platform selection" |
| 144 | |
Radha Mohan Chintakuntla | 28f7420d | 2014-04-08 18:47:51 +0530 | [diff] [blame] | 145 | config ARCH_THUNDER |
| 146 | bool "Cavium Inc. Thunder SoC Family" |
| 147 | help |
| 148 | This enables support for Cavium's Thunder Family of SoCs. |
| 149 | |
Catalin Marinas | 1ae90e7 | 2012-09-05 17:47:44 +0100 | [diff] [blame] | 150 | config ARCH_VEXPRESS |
| 151 | bool "ARMv8 software model (Versatile Express)" |
| 152 | select ARCH_REQUIRE_GPIOLIB |
| 153 | select COMMON_CLK_VERSATILE |
Catalin Marinas | aa1e8ec1 | 2013-02-28 18:14:37 +0000 | [diff] [blame] | 154 | select POWER_RESET_VEXPRESS |
Catalin Marinas | 1ae90e7 | 2012-09-05 17:47:44 +0100 | [diff] [blame] | 155 | select VEXPRESS_CONFIG |
| 156 | help |
| 157 | This enables support for the ARMv8 software model (Versatile |
| 158 | Express). |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 159 | |
Vinayak Kale | 1594285 | 2013-04-24 10:06:57 +0100 | [diff] [blame] | 160 | config ARCH_XGENE |
| 161 | bool "AppliedMicro X-Gene SOC Family" |
| 162 | help |
| 163 | This enables support for AppliedMicro X-Gene SOC Family |
| 164 | |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 165 | endmenu |
| 166 | |
| 167 | menu "Bus support" |
| 168 | |
| 169 | config ARM_AMBA |
| 170 | bool |
| 171 | |
Liviu Dudau | d1e6dc9 | 2014-09-29 15:29:31 +0100 | [diff] [blame] | 172 | config PCI |
| 173 | bool "PCI support" |
| 174 | help |
| 175 | This feature enables support for PCI bus system. If you say Y |
| 176 | here, the kernel will include drivers and infrastructure code |
| 177 | to support PCI bus devices. |
| 178 | |
| 179 | config PCI_DOMAINS |
| 180 | def_bool PCI |
| 181 | |
| 182 | config PCI_DOMAINS_GENERIC |
| 183 | def_bool PCI |
| 184 | |
| 185 | config PCI_SYSCALL |
| 186 | def_bool PCI |
| 187 | |
| 188 | source "drivers/pci/Kconfig" |
| 189 | source "drivers/pci/pcie/Kconfig" |
| 190 | source "drivers/pci/hotplug/Kconfig" |
| 191 | |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 192 | endmenu |
| 193 | |
| 194 | menu "Kernel Features" |
| 195 | |
Jungseok Lee | e41ceed | 2014-05-12 10:40:38 +0100 | [diff] [blame] | 196 | choice |
| 197 | prompt "Page size" |
| 198 | default ARM64_4K_PAGES |
| 199 | help |
| 200 | Page size (translation granule) configuration. |
| 201 | |
| 202 | config ARM64_4K_PAGES |
| 203 | bool "4KB" |
| 204 | help |
| 205 | This feature enables 4KB pages support. |
| 206 | |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 207 | config ARM64_64K_PAGES |
Jungseok Lee | e41ceed | 2014-05-12 10:40:38 +0100 | [diff] [blame] | 208 | bool "64KB" |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 209 | help |
| 210 | This feature enables 64KB pages support (4KB by default) |
| 211 | allowing only two levels of page tables and faster TLB |
| 212 | look-up. AArch32 emulation is not available when this feature |
| 213 | is enabled. |
| 214 | |
Jungseok Lee | e41ceed | 2014-05-12 10:40:38 +0100 | [diff] [blame] | 215 | endchoice |
| 216 | |
| 217 | choice |
| 218 | prompt "Virtual address space size" |
| 219 | default ARM64_VA_BITS_39 if ARM64_4K_PAGES |
| 220 | default ARM64_VA_BITS_42 if ARM64_64K_PAGES |
| 221 | help |
| 222 | Allows choosing one of multiple possible virtual address |
| 223 | space sizes. The level of translation table is determined by |
| 224 | a combination of page size and virtual address space size. |
| 225 | |
| 226 | config ARM64_VA_BITS_39 |
| 227 | bool "39-bit" |
| 228 | depends on ARM64_4K_PAGES |
| 229 | |
| 230 | config ARM64_VA_BITS_42 |
| 231 | bool "42-bit" |
| 232 | depends on ARM64_64K_PAGES |
| 233 | |
Jungseok Lee | c79b954b | 2014-05-12 18:40:51 +0900 | [diff] [blame] | 234 | config ARM64_VA_BITS_48 |
| 235 | bool "48-bit" |
Christoffer Dall | 04f905a | 2014-10-10 11:14:30 +0100 | [diff] [blame] | 236 | depends on !ARM_SMMU |
Jungseok Lee | c79b954b | 2014-05-12 18:40:51 +0900 | [diff] [blame] | 237 | |
Jungseok Lee | e41ceed | 2014-05-12 10:40:38 +0100 | [diff] [blame] | 238 | endchoice |
| 239 | |
| 240 | config ARM64_VA_BITS |
| 241 | int |
| 242 | default 39 if ARM64_VA_BITS_39 |
| 243 | default 42 if ARM64_VA_BITS_42 |
Jungseok Lee | c79b954b | 2014-05-12 18:40:51 +0900 | [diff] [blame] | 244 | default 48 if ARM64_VA_BITS_48 |
Jungseok Lee | e41ceed | 2014-05-12 10:40:38 +0100 | [diff] [blame] | 245 | |
Catalin Marinas | abe669d | 2014-07-15 15:37:21 +0100 | [diff] [blame] | 246 | config ARM64_PGTABLE_LEVELS |
| 247 | int |
| 248 | default 2 if ARM64_64K_PAGES && ARM64_VA_BITS_42 |
Catalin Marinas | 383c279 | 2014-07-21 15:54:50 +0100 | [diff] [blame] | 249 | default 3 if ARM64_64K_PAGES && ARM64_VA_BITS_48 |
Catalin Marinas | abe669d | 2014-07-15 15:37:21 +0100 | [diff] [blame] | 250 | default 3 if ARM64_4K_PAGES && ARM64_VA_BITS_39 |
| 251 | default 4 if ARM64_4K_PAGES && ARM64_VA_BITS_48 |
Jungseok Lee | c79b954b | 2014-05-12 18:40:51 +0900 | [diff] [blame] | 252 | |
Will Deacon | a872013 | 2013-10-11 14:52:19 +0100 | [diff] [blame] | 253 | config CPU_BIG_ENDIAN |
| 254 | bool "Build big-endian kernel" |
| 255 | help |
| 256 | Say Y if you plan on running a kernel in big-endian mode. |
| 257 | |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 258 | config SMP |
| 259 | bool "Symmetric Multi-Processing" |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 260 | help |
| 261 | This enables support for systems with more than one CPU. If |
| 262 | you say N here, the kernel will run on single and |
| 263 | multiprocessor machines, but will use only one CPU of a |
| 264 | multiprocessor machine. If you say Y here, the kernel will run |
| 265 | on many, but not all, single processor machines. On a single |
| 266 | processor machine, the kernel will run faster if you say N |
| 267 | here. |
| 268 | |
| 269 | If you don't know what to do here, say N. |
| 270 | |
Mark Brown | f6e763b | 2014-03-04 07:51:17 +0000 | [diff] [blame] | 271 | config SCHED_MC |
| 272 | bool "Multi-core scheduler support" |
| 273 | depends on SMP |
| 274 | help |
| 275 | Multi-core scheduler support improves the CPU scheduler's decision |
| 276 | making when dealing with multi-core CPU chips at a cost of slightly |
| 277 | increased overhead in some places. If unsure say N here. |
| 278 | |
| 279 | config SCHED_SMT |
| 280 | bool "SMT scheduler support" |
| 281 | depends on SMP |
| 282 | help |
| 283 | Improves the CPU scheduler's decision making when dealing with |
| 284 | MultiThreading at a cost of slightly increased overhead in some |
| 285 | places. If unsure say N here. |
| 286 | |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 287 | config NR_CPUS |
Robert Richter | e367264 | 2014-09-08 12:44:48 +0100 | [diff] [blame] | 288 | int "Maximum number of CPUs (2-64)" |
| 289 | range 2 64 |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 290 | depends on SMP |
Vinayak Kale | 1594285 | 2013-04-24 10:06:57 +0100 | [diff] [blame] | 291 | # These have to remain sorted largest to smallest |
Robert Richter | e367264 | 2014-09-08 12:44:48 +0100 | [diff] [blame] | 292 | default "64" |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 293 | |
Mark Rutland | 9327e2c | 2013-10-24 20:30:18 +0100 | [diff] [blame] | 294 | config HOTPLUG_CPU |
| 295 | bool "Support for hot-pluggable CPUs" |
| 296 | depends on SMP |
| 297 | help |
| 298 | Say Y here to experiment with turning CPUs off and on. CPUs |
| 299 | can be controlled through /sys/devices/system/cpu. |
| 300 | |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 301 | source kernel/Kconfig.preempt |
| 302 | |
| 303 | config HZ |
| 304 | int |
| 305 | default 100 |
| 306 | |
| 307 | config ARCH_HAS_HOLES_MEMORYMODEL |
| 308 | def_bool y if SPARSEMEM |
| 309 | |
| 310 | config ARCH_SPARSEMEM_ENABLE |
| 311 | def_bool y |
| 312 | select SPARSEMEM_VMEMMAP_ENABLE |
| 313 | |
| 314 | config ARCH_SPARSEMEM_DEFAULT |
| 315 | def_bool ARCH_SPARSEMEM_ENABLE |
| 316 | |
| 317 | config ARCH_SELECT_MEMORY_MODEL |
| 318 | def_bool ARCH_SPARSEMEM_ENABLE |
| 319 | |
| 320 | config HAVE_ARCH_PFN_VALID |
| 321 | def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM |
| 322 | |
| 323 | config HW_PERF_EVENTS |
| 324 | bool "Enable hardware performance counter support for perf events" |
| 325 | depends on PERF_EVENTS |
| 326 | default y |
| 327 | help |
| 328 | Enable hardware performance counter support for perf events. If |
| 329 | disabled, perf events will use software events only. |
| 330 | |
Steve Capper | 084bd29 | 2013-04-10 13:48:00 +0100 | [diff] [blame] | 331 | config SYS_SUPPORTS_HUGETLBFS |
| 332 | def_bool y |
| 333 | |
| 334 | config ARCH_WANT_GENERAL_HUGETLB |
| 335 | def_bool y |
| 336 | |
| 337 | config ARCH_WANT_HUGE_PMD_SHARE |
| 338 | def_bool y if !ARM64_64K_PAGES |
| 339 | |
Steve Capper | af07484 | 2013-04-19 16:23:57 +0100 | [diff] [blame] | 340 | config HAVE_ARCH_TRANSPARENT_HUGEPAGE |
| 341 | def_bool y |
| 342 | |
Catalin Marinas | a41dc0e | 2014-04-03 17:48:54 +0100 | [diff] [blame] | 343 | config ARCH_HAS_CACHE_LINE_SIZE |
| 344 | def_bool y |
| 345 | |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 346 | source "mm/Kconfig" |
| 347 | |
Stefano Stabellini | aa42aa1 | 2013-06-03 17:05:43 +0000 | [diff] [blame] | 348 | config XEN_DOM0 |
| 349 | def_bool y |
| 350 | depends on XEN |
| 351 | |
| 352 | config XEN |
Julien Grall | c2ba1f7 | 2014-09-17 14:07:06 -0700 | [diff] [blame] | 353 | bool "Xen guest support on ARM64" |
Stefano Stabellini | aa42aa1 | 2013-06-03 17:05:43 +0000 | [diff] [blame] | 354 | depends on ARM64 && OF |
Stefano Stabellini | 83862cc | 2013-10-10 13:40:44 +0000 | [diff] [blame] | 355 | select SWIOTLB_XEN |
Stefano Stabellini | aa42aa1 | 2013-06-03 17:05:43 +0000 | [diff] [blame] | 356 | help |
| 357 | Say Y if you want to run Linux in a Virtual Machine on Xen on ARM64. |
| 358 | |
Steve Capper | d03bb14 | 2013-04-25 15:19:21 +0100 | [diff] [blame] | 359 | config FORCE_MAX_ZONEORDER |
| 360 | int |
| 361 | default "14" if (ARM64_64K_PAGES && TRANSPARENT_HUGEPAGE) |
| 362 | default "11" |
| 363 | |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 364 | endmenu |
| 365 | |
| 366 | menu "Boot options" |
| 367 | |
| 368 | config CMDLINE |
| 369 | string "Default kernel command string" |
| 370 | default "" |
| 371 | help |
| 372 | Provide a set of default command-line options at build time by |
| 373 | entering them here. As a minimum, you should specify the the |
| 374 | root device (e.g. root=/dev/nfs). |
| 375 | |
| 376 | config CMDLINE_FORCE |
| 377 | bool "Always use the default kernel command string" |
| 378 | help |
| 379 | Always use the default kernel command string, even if the boot |
| 380 | loader passes other arguments to the kernel. |
| 381 | This is useful if you cannot or don't want to change the |
| 382 | command-line options your boot loader passes to the kernel. |
| 383 | |
Ard Biesheuvel | f4f75ad5 | 2014-07-02 14:54:43 +0200 | [diff] [blame] | 384 | config EFI_STUB |
| 385 | bool |
| 386 | |
Mark Salter | f84d027 | 2014-04-15 21:59:30 -0400 | [diff] [blame] | 387 | config EFI |
| 388 | bool "UEFI runtime support" |
| 389 | depends on OF && !CPU_BIG_ENDIAN |
| 390 | select LIBFDT |
| 391 | select UCS2_STRING |
| 392 | select EFI_PARAMS_FROM_FDT |
Ard Biesheuvel | e15dd49 | 2014-07-04 19:41:53 +0200 | [diff] [blame] | 393 | select EFI_RUNTIME_WRAPPERS |
Ard Biesheuvel | f4f75ad5 | 2014-07-02 14:54:43 +0200 | [diff] [blame] | 394 | select EFI_STUB |
| 395 | select EFI_ARMSTUB |
Mark Salter | f84d027 | 2014-04-15 21:59:30 -0400 | [diff] [blame] | 396 | default y |
| 397 | help |
| 398 | This option provides support for runtime services provided |
| 399 | by UEFI firmware (such as non-volatile variables, realtime |
Mark Salter | 3c7f255 | 2014-04-15 22:47:52 -0400 | [diff] [blame] | 400 | clock, and platform reset). A UEFI stub is also provided to |
| 401 | allow the kernel to be booted as an EFI application. This |
| 402 | is only useful on systems that have UEFI firmware. |
Mark Salter | f84d027 | 2014-04-15 21:59:30 -0400 | [diff] [blame] | 403 | |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 404 | endmenu |
| 405 | |
| 406 | menu "Userspace binary formats" |
| 407 | |
| 408 | source "fs/Kconfig.binfmt" |
| 409 | |
| 410 | config COMPAT |
| 411 | bool "Kernel support for 32-bit EL0" |
| 412 | depends on !ARM64_64K_PAGES |
| 413 | select COMPAT_BINFMT_ELF |
Catalin Marinas | af1839e | 2012-10-08 16:28:08 -0700 | [diff] [blame] | 414 | select HAVE_UID16 |
Al Viro | 84b9e9b | 2012-12-25 16:29:11 -0500 | [diff] [blame] | 415 | select OLD_SIGSUSPEND3 |
Al Viro | 5168203 | 2012-12-25 19:31:29 -0500 | [diff] [blame] | 416 | select COMPAT_OLD_SIGACTION |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 417 | help |
| 418 | This option enables support for a 32-bit EL0 running under a 64-bit |
| 419 | kernel at EL1. AArch32-specific components such as system calls, |
| 420 | the user helper functions, VFP support and the ptrace interface are |
| 421 | handled appropriately by the kernel. |
| 422 | |
| 423 | If you want to execute 32-bit userspace applications, say Y. |
| 424 | |
| 425 | config SYSVIPC_COMPAT |
| 426 | def_bool y |
| 427 | depends on COMPAT && SYSVIPC |
| 428 | |
| 429 | endmenu |
| 430 | |
Lorenzo Pieralisi | 166936b | 2013-11-07 18:37:14 +0000 | [diff] [blame] | 431 | menu "Power management options" |
| 432 | |
| 433 | source "kernel/power/Kconfig" |
| 434 | |
| 435 | config ARCH_SUSPEND_POSSIBLE |
| 436 | def_bool y |
| 437 | |
| 438 | config ARM64_CPU_SUSPEND |
| 439 | def_bool PM_SLEEP |
| 440 | |
| 441 | endmenu |
| 442 | |
Lorenzo Pieralisi | 1307220 | 2013-07-17 14:54:21 +0100 | [diff] [blame] | 443 | menu "CPU Power Management" |
| 444 | |
| 445 | source "drivers/cpuidle/Kconfig" |
| 446 | |
Rob Herring | 52e7e81 | 2014-02-24 11:27:57 +0900 | [diff] [blame] | 447 | source "drivers/cpufreq/Kconfig" |
| 448 | |
| 449 | endmenu |
| 450 | |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 451 | source "net/Kconfig" |
| 452 | |
| 453 | source "drivers/Kconfig" |
| 454 | |
Mark Salter | f84d027 | 2014-04-15 21:59:30 -0400 | [diff] [blame] | 455 | source "drivers/firmware/Kconfig" |
| 456 | |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 457 | source "fs/Kconfig" |
| 458 | |
Marc Zyngier | c3eb5b1 | 2013-07-04 13:34:32 +0100 | [diff] [blame] | 459 | source "arch/arm64/kvm/Kconfig" |
| 460 | |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 461 | source "arch/arm64/Kconfig.debug" |
| 462 | |
| 463 | source "security/Kconfig" |
| 464 | |
| 465 | source "crypto/Kconfig" |
Ard Biesheuvel | 2c98833 | 2014-03-06 16:23:33 +0800 | [diff] [blame] | 466 | if CRYPTO |
| 467 | source "arch/arm64/crypto/Kconfig" |
| 468 | endif |
Catalin Marinas | 8c2c3df | 2012-04-20 14:45:54 +0100 | [diff] [blame] | 469 | |
| 470 | source "lib/Kconfig" |