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-rw-r--r--arch/x86/kernel/smp.c65
1 files changed, 57 insertions, 8 deletions
diff --git a/arch/x86/kernel/smp.c b/arch/x86/kernel/smp.c
index 48d2b7ded422..f4fe0b8879e0 100644
--- a/arch/x86/kernel/smp.c
+++ b/arch/x86/kernel/smp.c
@@ -30,6 +30,7 @@
#include <asm/proto.h>
#include <asm/apic.h>
#include <asm/nmi.h>
+#include <asm/trace/irq_vectors.h>
/*
* Some notes on x86 processor bugs affecting SMP operation:
*
@@ -249,32 +250,80 @@ finish:
/*
* Reschedule call back.
*/
-void smp_reschedule_interrupt(struct pt_regs *regs)
+static inline void __smp_reschedule_interrupt(void)
{
- ack_APIC_irq();
inc_irq_stat(irq_resched_count);
scheduler_ipi();
+}
+
+void smp_reschedule_interrupt(struct pt_regs *regs)
+{
+ ack_APIC_irq();
+ __smp_reschedule_interrupt();
/*
* KVM uses this interrupt to force a cpu out of guest mode
*/
}
-void smp_call_function_interrupt(struct pt_regs *regs)
+void smp_trace_reschedule_interrupt(struct pt_regs *regs)
+{
+ ack_APIC_irq();
+ trace_reschedule_entry(RESCHEDULE_VECTOR);
+ __smp_reschedule_interrupt();
+ trace_reschedule_exit(RESCHEDULE_VECTOR);
+ /*
+ * KVM uses this interrupt to force a cpu out of guest mode
+ */
+}
+
+static inline void call_function_entering_irq(void)
{
ack_APIC_irq();
irq_enter();
+}
+
+static inline void __smp_call_function_interrupt(void)
+{
generic_smp_call_function_interrupt();
inc_irq_stat(irq_call_count);
- irq_exit();
}
-void smp_call_function_single_interrupt(struct pt_regs *regs)
+void smp_call_function_interrupt(struct pt_regs *regs)
+{
+ call_function_entering_irq();
+ __smp_call_function_interrupt();
+ exiting_irq();
+}
+
+void smp_trace_call_function_interrupt(struct pt_regs *regs)
+{
+ call_function_entering_irq();
+ trace_call_function_entry(CALL_FUNCTION_VECTOR);
+ __smp_call_function_interrupt();
+ trace_call_function_exit(CALL_FUNCTION_VECTOR);
+ exiting_irq();
+}
+
+static inline void __smp_call_function_single_interrupt(void)
{
- ack_APIC_irq();
- irq_enter();
generic_smp_call_function_single_interrupt();
inc_irq_stat(irq_call_count);
- irq_exit();
+}
+
+void smp_call_function_single_interrupt(struct pt_regs *regs)
+{
+ call_function_entering_irq();
+ __smp_call_function_single_interrupt();
+ exiting_irq();
+}
+
+void smp_trace_call_function_single_interrupt(struct pt_regs *regs)
+{
+ call_function_entering_irq();
+ trace_call_function_single_entry(CALL_FUNCTION_SINGLE_VECTOR);
+ __smp_call_function_single_interrupt();
+ trace_call_function_single_exit(CALL_FUNCTION_SINGLE_VECTOR);
+ exiting_irq();
}
static int __init nonmi_ipi_setup(char *str)
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