5c7dd7acc3
repo: https://github.com/T-head-Semi/linux commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
35 lines
701 B
C
35 lines
701 B
C
// 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/idtentry.h>
|
|
#include <asm/trace/irq_vectors.h>
|
|
#include <linux/interrupt.h>
|
|
|
|
#ifdef CONFIG_X86_LOCAL_APIC
|
|
DEFINE_IDTENTRY_SYSVEC(sysvec_irq_work)
|
|
{
|
|
ack_APIC_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);
|
|
}
|
|
|
|
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
|