Commit | Line | Data |
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e360adbe PZ |
1 | /* |
2 | * x86 specific code for irq_work | |
3 | * | |
90eec103 | 4 | * Copyright (C) 2010 Red Hat, Inc., Peter Zijlstra |
e360adbe PZ |
5 | */ |
6 | ||
7 | #include <linux/kernel.h> | |
8 | #include <linux/irq_work.h> | |
9 | #include <linux/hardirq.h> | |
10 | #include <asm/apic.h> | |
cf910e83 | 11 | #include <asm/trace/irq_vectors.h> |
e360adbe | 12 | |
eddc0e92 SA |
13 | static inline void __smp_irq_work_interrupt(void) |
14 | { | |
e360adbe PZ |
15 | inc_irq_stat(apic_irq_work_irqs); |
16 | irq_work_run(); | |
eddc0e92 SA |
17 | } |
18 | ||
1d9090e2 | 19 | __visible void smp_irq_work_interrupt(struct pt_regs *regs) |
eddc0e92 | 20 | { |
6dc17876 | 21 | ipi_entering_ack_irq(); |
eddc0e92 SA |
22 | __smp_irq_work_interrupt(); |
23 | exiting_irq(); | |
e360adbe PZ |
24 | } |
25 | ||
1d9090e2 | 26 | __visible void smp_trace_irq_work_interrupt(struct pt_regs *regs) |
cf910e83 | 27 | { |
6dc17876 | 28 | ipi_entering_ack_irq(); |
cf910e83 SA |
29 | trace_irq_work_entry(IRQ_WORK_VECTOR); |
30 | __smp_irq_work_interrupt(); | |
31 | trace_irq_work_exit(IRQ_WORK_VECTOR); | |
32 | exiting_irq(); | |
33 | } | |
34 | ||
e360adbe PZ |
35 | void arch_irq_work_raise(void) |
36 | { | |
37 | #ifdef CONFIG_X86_LOCAL_APIC | |
3010279f | 38 | if (!arch_irq_work_has_interrupt()) |
e360adbe PZ |
39 | return; |
40 | ||
41 | apic->send_IPI_self(IRQ_WORK_VECTOR); | |
42 | apic_wait_icr_idle(); | |
43 | #endif | |
44 | } |