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| author | Ingo Molnar <mingo@elte.hu> | 2008-12-03 09:39:53 (GMT) |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-12-08 14:47:15 (GMT) |
| commit | 241771ef016b5c0c83cd7a4372a74321c973c1e6 (patch) | |
| tree | 5893d72f1721af34daee82f27449bd35c9f65363 /arch/x86/kernel/irqinit_32.c | |
| parent | e7bc62b6b3aeaa8849f8383e0cfb7ca6c003adc6 (diff) | |
| download | linux-fsl-qoriq-241771ef016b5c0c83cd7a4372a74321c973c1e6.tar.xz | |
performance counters: x86 support
Implement performance counters for x86 Intel CPUs.
It's simplified right now: the PERFMON CPU feature is assumed,
which is available in Core2 and later Intel CPUs.
The design is flexible to be extended to more CPU types as well.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/irqinit_32.c')
| -rw-r--r-- | arch/x86/kernel/irqinit_32.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kernel/irqinit_32.c b/arch/x86/kernel/irqinit_32.c index 607db63..6a33b5e 100644 --- a/arch/x86/kernel/irqinit_32.c +++ b/arch/x86/kernel/irqinit_32.c @@ -160,6 +160,9 @@ void __init native_init_IRQ(void) /* IPI vectors for APIC spurious and error interrupts */ alloc_intr_gate(SPURIOUS_APIC_VECTOR, spurious_interrupt); alloc_intr_gate(ERROR_APIC_VECTOR, error_interrupt); +# ifdef CONFIG_PERF_COUNTERS + alloc_intr_gate(LOCAL_PERF_VECTOR, perf_counter_interrupt); +# endif #endif #if defined(CONFIG_X86_LOCAL_APIC) && defined(CONFIG_X86_MCE_P4THERMAL) |