x86/irq: Use generic irq_regs implementation

/* SPDX-License-Identifier: GPL-2.0 */

/*

 * 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 */

DEFINE_PER_CPU_SHARED_ALIGNED(irq_cpustat_t, irq_stat);

EXPORT_PER_CPU_SYMBOL(irq_stat);

DEFINE_PER_CPU(struct pt_regs *, irq_regs);

EXPORT_PER_CPU_SYMBOL(irq_regs);

atomic_t irq_err_count;

/*