sh: Convert to asm-generic/irqflags.h.
This simplifies the irqflags support by switching over to the asm-generic
version. The necessary support functions are brought out-of-line for both
SHcompact and SHmedia instruction sets.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/include/asm/irqflags.h b/arch/sh/include/asm/irqflags.h
index 46e71da..a741153 100644
--- a/arch/sh/include/asm/irqflags.h
+++ b/arch/sh/include/asm/irqflags.h
@@ -1,34 +1,9 @@
#ifndef __ASM_SH_IRQFLAGS_H
#define __ASM_SH_IRQFLAGS_H
-#ifdef CONFIG_SUPERH32
-#include "irqflags_32.h"
-#else
-#include "irqflags_64.h"
-#endif
+#define RAW_IRQ_DISABLED 0xf0
+#define RAW_IRQ_ENABLED 0x00
-#define raw_local_save_flags(flags) \
- do { (flags) = __raw_local_save_flags(); } while (0)
-
-static inline int raw_irqs_disabled_flags(unsigned long flags)
-{
- return (flags != 0);
-}
-
-static inline int raw_irqs_disabled(void)
-{
- unsigned long flags = __raw_local_save_flags();
-
- return raw_irqs_disabled_flags(flags);
-}
-
-#define raw_local_irq_save(flags) \
- do { (flags) = __raw_local_irq_save(); } while (0)
-
-static inline void raw_local_irq_restore(unsigned long flags)
-{
- if ((flags & 0xf0) != 0xf0)
- raw_local_irq_enable();
-}
+#include <asm-generic/irqflags.h>
#endif /* __ASM_SH_IRQFLAGS_H */
diff --git a/arch/sh/include/asm/irqflags_32.h b/arch/sh/include/asm/irqflags_32.h
deleted file mode 100644
index 60218f5..0000000
--- a/arch/sh/include/asm/irqflags_32.h
+++ /dev/null
@@ -1,99 +0,0 @@
-#ifndef __ASM_SH_IRQFLAGS_32_H
-#define __ASM_SH_IRQFLAGS_32_H
-
-static inline void raw_local_irq_enable(void)
-{
- unsigned long __dummy0, __dummy1;
-
- __asm__ __volatile__ (
- "stc sr, %0\n\t"
- "and %1, %0\n\t"
-#ifdef CONFIG_CPU_HAS_SR_RB
- "stc r6_bank, %1\n\t"
- "or %1, %0\n\t"
-#endif
- "ldc %0, sr\n\t"
- : "=&r" (__dummy0), "=r" (__dummy1)
- : "1" (~0x000000f0)
- : "memory"
- );
-}
-
-static inline void raw_local_irq_disable(void)
-{
- unsigned long flags;
-
- __asm__ __volatile__ (
- "stc sr, %0\n\t"
- "or #0xf0, %0\n\t"
- "ldc %0, sr\n\t"
- : "=&z" (flags)
- : /* no inputs */
- : "memory"
- );
-}
-
-static inline void set_bl_bit(void)
-{
- unsigned long __dummy0, __dummy1;
-
- __asm__ __volatile__ (
- "stc sr, %0\n\t"
- "or %2, %0\n\t"
- "and %3, %0\n\t"
- "ldc %0, sr\n\t"
- : "=&r" (__dummy0), "=r" (__dummy1)
- : "r" (0x10000000), "r" (0xffffff0f)
- : "memory"
- );
-}
-
-static inline void clear_bl_bit(void)
-{
- unsigned long __dummy0, __dummy1;
-
- __asm__ __volatile__ (
- "stc sr, %0\n\t"
- "and %2, %0\n\t"
- "ldc %0, sr\n\t"
- : "=&r" (__dummy0), "=r" (__dummy1)
- : "1" (~0x10000000)
- : "memory"
- );
-}
-
-static inline unsigned long __raw_local_save_flags(void)
-{
- unsigned long flags;
-
- __asm__ __volatile__ (
- "stc sr, %0\n\t"
- "and #0xf0, %0\n\t"
- : "=&z" (flags)
- : /* no inputs */
- : "memory"
- );
-
- return flags;
-}
-
-static inline unsigned long __raw_local_irq_save(void)
-{
- unsigned long flags, __dummy;
-
- __asm__ __volatile__ (
- "stc sr, %1\n\t"
- "mov %1, %0\n\t"
- "or #0xf0, %0\n\t"
- "ldc %0, sr\n\t"
- "mov %1, %0\n\t"
- "and #0xf0, %0\n\t"
- : "=&z" (flags), "=&r" (__dummy)
- : /* no inputs */
- : "memory"
- );
-
- return flags;
-}
-
-#endif /* __ASM_SH_IRQFLAGS_32_H */
diff --git a/arch/sh/include/asm/irqflags_64.h b/arch/sh/include/asm/irqflags_64.h
deleted file mode 100644
index 88f6522..0000000
--- a/arch/sh/include/asm/irqflags_64.h
+++ /dev/null
@@ -1,85 +0,0 @@
-#ifndef __ASM_SH_IRQFLAGS_64_H
-#define __ASM_SH_IRQFLAGS_64_H
-
-#include <cpu/registers.h>
-
-#define SR_MASK_LL 0x00000000000000f0LL
-#define SR_BL_LL 0x0000000010000000LL
-
-static inline void raw_local_irq_enable(void)
-{
- unsigned long long __dummy0, __dummy1 = ~SR_MASK_LL;
-
- __asm__ __volatile__("getcon " __SR ", %0\n\t"
- "and %0, %1, %0\n\t"
- "putcon %0, " __SR "\n\t"
- : "=&r" (__dummy0)
- : "r" (__dummy1));
-}
-
-static inline void raw_local_irq_disable(void)
-{
- unsigned long long __dummy0, __dummy1 = SR_MASK_LL;
-
- __asm__ __volatile__("getcon " __SR ", %0\n\t"
- "or %0, %1, %0\n\t"
- "putcon %0, " __SR "\n\t"
- : "=&r" (__dummy0)
- : "r" (__dummy1));
-}
-
-static inline void set_bl_bit(void)
-{
- unsigned long long __dummy0, __dummy1 = SR_BL_LL;
-
- __asm__ __volatile__("getcon " __SR ", %0\n\t"
- "or %0, %1, %0\n\t"
- "putcon %0, " __SR "\n\t"
- : "=&r" (__dummy0)
- : "r" (__dummy1));
-
-}
-
-static inline void clear_bl_bit(void)
-{
- unsigned long long __dummy0, __dummy1 = ~SR_BL_LL;
-
- __asm__ __volatile__("getcon " __SR ", %0\n\t"
- "and %0, %1, %0\n\t"
- "putcon %0, " __SR "\n\t"
- : "=&r" (__dummy0)
- : "r" (__dummy1));
-}
-
-static inline unsigned long __raw_local_save_flags(void)
-{
- unsigned long long __dummy = SR_MASK_LL;
- unsigned long flags;
-
- __asm__ __volatile__ (
- "getcon " __SR ", %0\n\t"
- "and %0, %1, %0"
- : "=&r" (flags)
- : "r" (__dummy));
-
- return flags;
-}
-
-static inline unsigned long __raw_local_irq_save(void)
-{
- unsigned long long __dummy0, __dummy1 = SR_MASK_LL;
- unsigned long flags;
-
- __asm__ __volatile__ (
- "getcon " __SR ", %1\n\t"
- "or %1, r63, %0\n\t"
- "or %1, %2, %1\n\t"
- "putcon %1, " __SR "\n\t"
- "and %0, %2, %0"
- : "=&r" (flags), "=&r" (__dummy0)
- : "r" (__dummy1));
-
- return flags;
-}
-
-#endif /* __ASM_SH_IRQFLAGS_64_H */
diff --git a/arch/sh/include/asm/system_32.h b/arch/sh/include/asm/system_32.h
index 607d413..06814f5 100644
--- a/arch/sh/include/asm/system_32.h
+++ b/arch/sh/include/asm/system_32.h
@@ -232,4 +232,33 @@
unsigned long r6, unsigned long r7,
struct pt_regs __regs);
+static inline void set_bl_bit(void)
+{
+ unsigned long __dummy0, __dummy1;
+
+ __asm__ __volatile__ (
+ "stc sr, %0\n\t"
+ "or %2, %0\n\t"
+ "and %3, %0\n\t"
+ "ldc %0, sr\n\t"
+ : "=&r" (__dummy0), "=r" (__dummy1)
+ : "r" (0x10000000), "r" (0xffffff0f)
+ : "memory"
+ );
+}
+
+static inline void clear_bl_bit(void)
+{
+ unsigned long __dummy0, __dummy1;
+
+ __asm__ __volatile__ (
+ "stc sr, %0\n\t"
+ "and %2, %0\n\t"
+ "ldc %0, sr\n\t"
+ : "=&r" (__dummy0), "=r" (__dummy1)
+ : "1" (~0x10000000)
+ : "memory"
+ );
+}
+
#endif /* __ASM_SH_SYSTEM_32_H */
diff --git a/arch/sh/include/asm/system_64.h b/arch/sh/include/asm/system_64.h
index 8e4a03e..ab1dd91 100644
--- a/arch/sh/include/asm/system_64.h
+++ b/arch/sh/include/asm/system_64.h
@@ -12,6 +12,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
+#include <cpu/registers.h>
#include <asm/processor.h>
/*
@@ -47,4 +48,29 @@
return (unsigned long long)(signed long long)(signed long)val;
}
+#define SR_BL_LL 0x0000000010000000LL
+
+static inline void set_bl_bit(void)
+{
+ unsigned long long __dummy0, __dummy1 = SR_BL_LL;
+
+ __asm__ __volatile__("getcon " __SR ", %0\n\t"
+ "or %0, %1, %0\n\t"
+ "putcon %0, " __SR "\n\t"
+ : "=&r" (__dummy0)
+ : "r" (__dummy1));
+
+}
+
+static inline void clear_bl_bit(void)
+{
+ unsigned long long __dummy0, __dummy1 = ~SR_BL_LL;
+
+ __asm__ __volatile__("getcon " __SR ", %0\n\t"
+ "and %0, %1, %0\n\t"
+ "putcon %0, " __SR "\n\t"
+ : "=&r" (__dummy0)
+ : "r" (__dummy1));
+}
+
#endif /* __ASM_SH_SYSTEM_64_H */
diff --git a/arch/sh/kernel/Makefile b/arch/sh/kernel/Makefile
index f879120..6fe0fcd 100644
--- a/arch/sh/kernel/Makefile
+++ b/arch/sh/kernel/Makefile
@@ -12,8 +12,8 @@
CFLAGS_REMOVE_return_address.o = -pg
obj-y := debugtraps.o dumpstack.o idle.o io.o io_generic.o irq.o \
- machvec.o nmi_debug.o process_$(BITS).o ptrace_$(BITS).o \
- return_address.o \
+ irq_$(BITS).o machvec.o nmi_debug.o process_$(BITS).o \
+ ptrace_$(BITS).o return_address.o \
setup.o signal_$(BITS).o sys_sh.o sys_sh$(BITS).o \
syscalls_$(BITS).o time.o topology.o traps.o \
traps_$(BITS).o unwinder.o
diff --git a/arch/sh/kernel/irq_32.c b/arch/sh/kernel/irq_32.c
new file mode 100644
index 0000000..b98a694
--- /dev/null
+++ b/arch/sh/kernel/irq_32.c
@@ -0,0 +1,57 @@
+/*
+ * SHcompact irqflags support
+ *
+ * Copyright (C) 2006 - 2009 Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/irqflags.h>
+#include <linux/module.h>
+
+void raw_local_irq_restore(unsigned long flags)
+{
+ unsigned long __dummy0, __dummy1;
+
+ if (flags == RAW_IRQ_DISABLED) {
+ __asm__ __volatile__ (
+ "stc sr, %0\n\t"
+ "or #0xf0, %0\n\t"
+ "ldc %0, sr\n\t"
+ : "=&z" (__dummy0)
+ : /* no inputs */
+ : "memory"
+ );
+ } else {
+ __asm__ __volatile__ (
+ "stc sr, %0\n\t"
+ "and %1, %0\n\t"
+#ifdef CONFIG_CPU_HAS_SR_RB
+ "stc r6_bank, %1\n\t"
+ "or %1, %0\n\t"
+#endif
+ "ldc %0, sr\n\t"
+ : "=&r" (__dummy0), "=r" (__dummy1)
+ : "1" (~RAW_IRQ_DISABLED)
+ : "memory"
+ );
+ }
+}
+EXPORT_SYMBOL(raw_local_irq_restore);
+
+unsigned long __raw_local_save_flags(void)
+{
+ unsigned long flags;
+
+ __asm__ __volatile__ (
+ "stc sr, %0\n\t"
+ "and #0xf0, %0\n\t"
+ : "=&z" (flags)
+ : /* no inputs */
+ : "memory"
+ );
+
+ return flags;
+}
+EXPORT_SYMBOL(__raw_local_save_flags);
diff --git a/arch/sh/kernel/irq_64.c b/arch/sh/kernel/irq_64.c
new file mode 100644
index 0000000..09d9271
--- /dev/null
+++ b/arch/sh/kernel/irq_64.c
@@ -0,0 +1,51 @@
+/*
+ * SHmedia irqflags support
+ *
+ * Copyright (C) 2006 - 2009 Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/irqflags.h>
+#include <linux/module.h>
+#include <cpu/registers.h>
+
+void raw_local_irq_restore(unsigned long flags)
+{
+ unsigned long long __dummy;
+
+ if (flags == RAW_IRQ_DISABLED) {
+ __asm__ __volatile__ (
+ "getcon " __SR ", %0\n\t"
+ "or %0, %1, %0\n\t"
+ "putcon %0, " __SR "\n\t"
+ : "=&r" (__dummy)
+ : "r" (RAW_IRQ_DISABLED)
+ );
+ } else {
+ __asm__ __volatile__ (
+ "getcon " __SR ", %0\n\t"
+ "and %0, %1, %0\n\t"
+ "putcon %0, " __SR "\n\t"
+ : "=&r" (__dummy)
+ : "r" (~RAW_IRQ_DISABLED)
+ );
+ }
+}
+EXPORT_SYMBOL(raw_local_irq_restore);
+
+unsigned long __raw_local_save_flags(void)
+{
+ unsigned long flags;
+
+ __asm__ __volatile__ (
+ "getcon " __SR ", %0\n\t"
+ "and %0, %1, %0"
+ : "=&r" (flags)
+ : "r" (RAW_IRQ_DISABLED)
+ );
+
+ return flags;
+}
+EXPORT_SYMBOL(__raw_local_save_flags);
