diff options
| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2007-10-12 21:27:47 -0400 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2007-10-12 21:27:47 -0400 |
| commit | b981d8b3f5e008ff10d993be633ad00564fc22cd (patch) | |
| tree | e292dc07b22308912cf6a58354a608b9e5e8e1fd /include/asm-x86/irq_regs_32.h | |
| parent | b11d2127c4893a7315d1e16273bc8560049fa3ca (diff) | |
| parent | 2b9e0aae1d50e880c58d46788e5e3ebd89d75d62 (diff) | |
Merge master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
drivers/macintosh/adbhid.c
Diffstat (limited to 'include/asm-x86/irq_regs_32.h')
| -rw-r--r-- | include/asm-x86/irq_regs_32.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/include/asm-x86/irq_regs_32.h b/include/asm-x86/irq_regs_32.h new file mode 100644 index 00000000000..3368b20c0b4 --- /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 <jeremy@goop.org> + */ +#ifndef _ASM_I386_IRQ_REGS_H +#define _ASM_I386_IRQ_REGS_H + +#include <asm/percpu.h> + +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 */ |