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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
| commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
| tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /arch/x86/kernel/irq_work.c | |
| parent | Initial commit. (diff) | |
| download | linux-upstream.tar.xz linux-upstream.zip | |
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/x86/kernel/irq_work.c')
| -rw-r--r-- | arch/x86/kernel/irq_work.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/x86/kernel/irq_work.c b/arch/x86/kernel/irq_work.c new file mode 100644 index 000000000..890d4778c --- /dev/null +++ b/arch/x86/kernel/irq_work.c @@ -0,0 +1,34 @@ +// 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 |