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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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720909a7ab
Convert various system vectors to IDTENTRY_SYSVEC: - Implement the C entry point with DEFINE_IDTENTRY_SYSVEC - Emit the ASM stub with DECLARE_IDTENTRY_SYSVEC - Remove the ASM idtentries in 64-bit - Remove the BUILD_INTERRUPT entries in 32-bit - Remove the old prototypes No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org> Acked-by: Andy Lutomirski <luto@kernel.org> Link: https://lore.kernel.org/r/20200521202119.464812973@linutronix.de
35 lines
701 B
C
35 lines
701 B
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* x86 specific code for irq_work
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*
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* Copyright (C) 2010 Red Hat, Inc., Peter Zijlstra
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*/
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#include <linux/kernel.h>
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#include <linux/irq_work.h>
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#include <linux/hardirq.h>
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#include <asm/apic.h>
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#include <asm/idtentry.h>
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#include <asm/trace/irq_vectors.h>
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#include <linux/interrupt.h>
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#ifdef CONFIG_X86_LOCAL_APIC
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DEFINE_IDTENTRY_SYSVEC(sysvec_irq_work)
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{
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ack_APIC_irq();
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trace_irq_work_entry(IRQ_WORK_VECTOR);
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inc_irq_stat(apic_irq_work_irqs);
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irq_work_run();
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trace_irq_work_exit(IRQ_WORK_VECTOR);
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}
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void arch_irq_work_raise(void)
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{
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if (!arch_irq_work_has_interrupt())
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return;
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apic->send_IPI_self(IRQ_WORK_VECTOR);
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apic_wait_icr_idle();
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}
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#endif
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