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_I386_IRQ_REGS_H 8#define _ASM_I386_IRQ_REGS_H 9 10#include <asm/percpu.h> 11 12DECLARE_PER_CPU(struct pt_regs *, irq_regs); 13 14static inline struct pt_regs *get_irq_regs(void) 15{ 16 return x86_read_percpu(irq_regs); 17} 18 19static inline struct pt_regs *set_irq_regs(struct pt_regs *new_regs) 20{ 21 struct pt_regs *old_regs; 22 23 old_regs = get_irq_regs(); 24 x86_write_percpu(irq_regs, new_regs); 25 26 return old_regs; 27} 28 29#endif /* _ASM_I386_IRQ_REGS_H */ 30