1/* 2 * Per-cpu current frame pointer - the location of the last exception frame on 3 * the stack, stored in the per-cpu area. 4 * 5 * Jeremy Fitzhardinge <jeremy@goop.org> 6 */ 7#ifndef _ASM_X86_IRQ_REGS_H 8#define _ASM_X86_IRQ_REGS_H 9 10#include <asm/percpu.h> 11 12#define ARCH_HAS_OWN_IRQ_REGS 13 14DECLARE_PER_CPU(struct pt_regs *, irq_regs); 15 16static inline struct pt_regs *get_irq_regs(void) 17{ 18 return percpu_read(irq_regs); 19} 20 21static inline struct pt_regs *set_irq_regs(struct pt_regs *new_regs) 22{ 23 struct pt_regs *old_regs; 24 25 old_regs = get_irq_regs(); 26 percpu_write(irq_regs, new_regs); 27 28 return old_regs; 29} 30 31#endif /* _ASM_X86_IRQ_REGS_32_H */ 32