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: / usr / lib / modules / 3.10.0-1062.9.1.el7.x86_64 / build / arch / x86 / include / asm /

Filename : irq_regs.h

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/*
 * 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_X86_IRQ_REGS_H
#define _ASM_X86_IRQ_REGS_H

#include <asm/percpu.h>

#define ARCH_HAS_OWN_IRQ_REGS

DECLARE_PER_CPU(struct pt_regs *, irq_regs);

static inline struct pt_regs *get_irq_regs(void)
{
	return this_cpu_read(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();
	this_cpu_write(irq_regs, new_regs);

	return old_regs;
}

#endif /* _ASM_X86_IRQ_REGS_32_H */