linux-stable/arch/x86/kernel/irq_work.c
Dave Hansen 28b8235238 x86/apic: Wrap IPI calls into helper functions
Move them to one place so the static call conversion gets simpler.

No functional change.

[ dhansen: merge against recent x86/apic changes ]

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Sohil Mehta <sohil.mehta@intel.com>
Tested-by: Juergen Gross <jgross@suse.com> # Xen PV (dom0 and unpriv. guest)
2023-08-09 12:00:55 -07:00

35 lines
698 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)
{
apic_eoi();
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