diff options
| author | Ingo Molnar <mingo@elte.hu> | 2009-03-06 16:44:14 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-03-06 16:45:01 +0100 |
| commit | f0ef03985130287c6c84ebe69416cf790e6cc00e (patch) | |
| tree | 3ecb04cc4d82e5fc3ae5f1747e6da172ae8cbcb7 /arch/x86/include/asm/irq_regs.h | |
| parent | 16097439703bcd38e9fe5608c12add6dacb825ea (diff) | |
| parent | 31bbed527e7039203920c51c9fb48c27aed0820c (diff) | |
Merge branch 'x86/core' into tracing/textedit
Conflicts:
arch/x86/Kconfig
block/blktrace.c
kernel/irq/handle.c
Semantic conflict:
kernel/trace/blktrace.c
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include/asm/irq_regs.h')
| -rw-r--r-- | arch/x86/include/asm/irq_regs.h | 36 |
1 files changed, 31 insertions, 5 deletions
diff --git a/arch/x86/include/asm/irq_regs.h b/arch/x86/include/asm/irq_regs.h index 89c898ab298..77843225b7e 100644 --- a/arch/x86/include/asm/irq_regs.h +++ b/arch/x86/include/asm/irq_regs.h @@ -1,5 +1,31 @@ -#ifdef CONFIG_X86_32 -# include "irq_regs_32.h" -#else -# include "irq_regs_64.h" -#endif +/* + * Per-cpu current frame pointer - the location of the last exception frame on + * the stack, stored in the per-cpu area. + * + * Jeremy Fitzhardinge <jeremy@goop.org> + */ +#ifndef _ASM_X86_IRQ_REGS_H +#define _ASM_X86_IRQ_REGS_H + +#include <asm/percpu.h> + +#define ARCH_HAS_OWN_IRQ_REGS + +DECLARE_PER_CPU(struct pt_regs *, irq_regs); + +static inline struct pt_regs *get_irq_regs(void) +{ + return percpu_read(irq_regs); +} + +static inline struct pt_regs *set_irq_regs(struct pt_regs *new_regs) +{ + struct pt_regs *old_regs; + + old_regs = get_irq_regs(); + percpu_write(irq_regs, new_regs); + + return old_regs; +} + +#endif /* _ASM_X86_IRQ_REGS_32_H */ |