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| author | Robert Richter <robert.richter@amd.com> | 2011-09-21 13:30:18 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-10-10 08:57:16 +0400 |
| commit | b716916679e72054d436afadce2f94dcad71cfad (patch) | |
| tree | 86e90ea74a78fb42276868c3ecd1af714d9e5b20 /arch/x86/include | |
| parent | ee5789dbcc800ba7d641443e53f60d53977f9747 (diff) | |
| download | linux-b716916679e72054d436afadce2f94dcad71cfad.tar.xz | |
perf, x86: Implement IBS initialization
This patch implements IBS feature detection and initialzation. The
code is shared between perf and oprofile. If IBS is available on the
system for perf, a pmu is setup.
Signed-off-by: Robert Richter <robert.richter@amd.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1316597423-25723-3-git-send-email-robert.richter@amd.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/perf_event.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/include/asm/perf_event.h b/arch/x86/include/asm/perf_event.h index e9e277c6991b..f61c62f7d5d8 100644 --- a/arch/x86/include/asm/perf_event.h +++ b/arch/x86/include/asm/perf_event.h @@ -159,6 +159,8 @@ union cpuid10_edx { #define IBS_OP_MAX_CNT 0x0000FFFFULL #define IBS_OP_MAX_CNT_EXT 0x007FFFFFULL /* not a register bit mask */ +extern u32 get_ibs_caps(void); + #ifdef CONFIG_PERF_EVENTS extern void perf_events_lapic_init(void); |