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| author | Ingo Molnar <mingo@elte.hu> | 2008-12-03 10:39:53 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-12-08 15:47:15 +0100 |
| commit | 241771ef016b5c0c83cd7a4372a74321c973c1e6 (patch) | |
| tree | 5893d72f1721af34daee82f27449bd35c9f65363 /arch/x86/kernel/apic.c | |
| parent | performance counters: documentation (diff) | |
| download | linux-241771ef016b5c0c83cd7a4372a74321c973c1e6.tar.xz linux-241771ef016b5c0c83cd7a4372a74321c973c1e6.zip | |
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/apic.c')
| -rw-r--r-- | arch/x86/kernel/apic.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kernel/apic.c b/arch/x86/kernel/apic.c index 16f94879b525..8ab8c1858672 100644 --- a/arch/x86/kernel/apic.c +++ b/arch/x86/kernel/apic.c @@ -31,6 +31,7 @@ #include <linux/dmi.h> #include <linux/dmar.h> +#include <asm/intel_arch_perfmon.h> #include <asm/atomic.h> #include <asm/smp.h> #include <asm/mtrr.h> @@ -1147,6 +1148,7 @@ void __cpuinit setup_local_APIC(void) apic_write(APIC_ESR, 0); } #endif + perf_counters_lapic_init(0); preempt_disable(); |