From 96a388de5dc53a8b234b3fd41f3ae2cedc9ffd42 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 11 Oct 2007 11:20:03 +0200 Subject: i386/x86_64: move headers to include/asm-x86 Move the headers to include/asm-x86 and fixup the header install make rules Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar --- include/asm-x86/irq_regs_32.h | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 include/asm-x86/irq_regs_32.h (limited to 'include/asm-x86/irq_regs_32.h') diff --git a/include/asm-x86/irq_regs_32.h b/include/asm-x86/irq_regs_32.h new file mode 100644 index 000000000000..3368b20c0b48 --- /dev/null +++ b/include/asm-x86/irq_regs_32.h @@ -0,0 +1,29 @@ +/* + * Per-cpu current frame pointer - the location of the last exception frame on + * the stack, stored in the per-cpu area. + * + * Jeremy Fitzhardinge + */ +#ifndef _ASM_I386_IRQ_REGS_H +#define _ASM_I386_IRQ_REGS_H + +#include + +DECLARE_PER_CPU(struct pt_regs *, irq_regs); + +static inline struct pt_regs *get_irq_regs(void) +{ + return x86_read_percpu(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(); + x86_write_percpu(irq_regs, new_regs); + + return old_regs; +} + +#endif /* _ASM_I386_IRQ_REGS_H */ -- cgit v1.2.3