Cregit: Linux 5.4: irq

Contributors: 7
Author	Tokens	Token Proportion	Commits	Commit Proportion
Peter Zijlstra	35	41.18%	2	18.18%
Seiji Aguchi	30	35.29%	2	18.18%
Thomas Gleixner	12	14.12%	3	27.27%
Daniel Bristot de Oliveira	4	4.71%	1	9.09%
Frédéric Weisbecker	2	2.35%	1	9.09%
Andi Kleen	1	1.18%	1	9.09%
Greg Kroah-Hartman	1	1.18%	1	9.09%
Total	85		11

// SPDX-License-Identifier: GPL-2.0
/*
 * x86 specific code for irq_work
 *
 * Copyright (C) 2010 Red Hat, Inc., Peter Zijlstra
 */

#include <linux/kernel.h>
#include <linux/irq_work.h>
#include <linux/hardirq.h>
#include <asm/apic.h>
#include <asm/trace/irq_vectors.h>
#include <linux/interrupt.h>

#ifdef CONFIG_X86_LOCAL_APIC
__visible void __irq_entry smp_irq_work_interrupt(struct pt_regs *regs)
{
	ipi_entering_ack_irq();
	trace_irq_work_entry(IRQ_WORK_VECTOR);
	inc_irq_stat(apic_irq_work_irqs);
	irq_work_run();
	trace_irq_work_exit(IRQ_WORK_VECTOR);
	exiting_irq();
}

void arch_irq_work_raise(void)
{
	if (!arch_irq_work_has_interrupt())
		return;

	apic->send_IPI_self(IRQ_WORK_VECTOR);
	apic_wait_icr_idle();
}
#endif

irq_work.c