tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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 */