1// SPDX-License-Identifier: GPL-2.0
2/*
3 * x86 specific code for irq_work
4 *
5 * Copyright (C) 2010 Red Hat, Inc., Peter Zijlstra
6 */
7
8#include <linux/kernel.h>
9#include <linux/irq_work.h>
10#include <linux/hardirq.h>
11#include <asm/apic.h>
12#include <asm/idtentry.h>
13#include <asm/trace/irq_vectors.h>
14#include <linux/interrupt.h>
15
16#ifdef CONFIG_X86_LOCAL_APIC
17DEFINE_IDTENTRY_SYSVEC(sysvec_irq_work)
18{
19 apic_eoi();
20 trace_irq_work_entry(IRQ_WORK_VECTOR);
21 inc_irq_stat(apic_irq_work_irqs);
22 irq_work_run();
23 trace_irq_work_exit(IRQ_WORK_VECTOR);
24}
25
26void arch_irq_work_raise(void)
27{
28 if (!arch_irq_work_has_interrupt())
29 return;
30
31 __apic_send_IPI_self(IRQ_WORK_VECTOR);
32 apic_wait_icr_idle();
33}
34#endif
35