diff options
Diffstat (limited to 'arch/x86/kernel/irq_work.c')
| -rw-r--r-- | arch/x86/kernel/irq_work.c | 38 |
1 files changed, 11 insertions, 27 deletions
diff --git a/arch/x86/kernel/irq_work.c b/arch/x86/kernel/irq_work.c index 636a55e4a13c..b0a24deab4a1 100644 --- a/arch/x86/kernel/irq_work.c +++ b/arch/x86/kernel/irq_work.c @@ -1,50 +1,34 @@ +// SPDX-License-Identifier: GPL-2.0 /* * x86 specific code for irq_work * - * Copyright (C) 2010 Red Hat, Inc., Peter Zijlstra <pzijlstr@redhat.com> + * 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> -static inline void irq_work_entering_irq(void) -{ - irq_enter(); - ack_APIC_irq(); -} - -static inline void __smp_irq_work_interrupt(void) +#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(); -} - -void smp_irq_work_interrupt(struct pt_regs *regs) -{ - irq_work_entering_irq(); - __smp_irq_work_interrupt(); - exiting_irq(); -} - -void smp_trace_irq_work_interrupt(struct pt_regs *regs) -{ - irq_work_entering_irq(); - trace_irq_work_entry(IRQ_WORK_VECTOR); - __smp_irq_work_interrupt(); trace_irq_work_exit(IRQ_WORK_VECTOR); - exiting_irq(); } void arch_irq_work_raise(void) { -#ifdef CONFIG_X86_LOCAL_APIC - if (!cpu_has_apic) + if (!arch_irq_work_has_interrupt()) return; - apic->send_IPI_self(IRQ_WORK_VECTOR); + __apic_send_IPI_self(IRQ_WORK_VECTOR); apic_wait_icr_idle(); -#endif } +#endif |