| /* 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 */ |
