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 14 DECLARE_PER_CPU(struct pt_regs *, irq_regs); 15 get_irq_regs(void)16static inline struct pt_regs *get_irq_regs(void) 17 { 18 return this_cpu_read(irq_regs); 19 } 20 set_irq_regs(struct pt_regs * new_regs)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 this_cpu_write(irq_regs, new_regs); 27 28 return old_regs; 29 } 30 31 #endif /* _ASM_X86_IRQ_REGS_32_H */ 32