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
17 DEFINE_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
26 void 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
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