diff options
| author | Jacob Shin <jacob.shin@amd.com> | 2013-02-06 17:26:28 (GMT) |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-02-06 18:45:24 (GMT) |
| commit | 0fbdad078a70ed72248c3d30fe32e45e83be00d1 (patch) | |
| tree | 07671320ea9e2c5e89d28508c0f8ff2a5ad1a29a /arch/x86/kernel | |
| parent | 4c1fd17a1cb32bc4f429c7a5ff9a91a3bffdb8fa (diff) | |
| download | linux-0fbdad078a70ed72248c3d30fe32e45e83be00d1.tar.xz | |
perf/x86: Allow for architecture specific RDPMC indexes
Similar to config_base and event_base, allow architecture
specific RDPMC ECX values.
Signed-off-by: Jacob Shin <jacob.shin@amd.com>
Acked-by: Stephane Eranian <eranian@google.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1360171589-6381-6-git-send-email-jacob.shin@amd.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel')
| -rw-r--r-- | arch/x86/kernel/cpu/perf_event.c | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/cpu/perf_event.h | 6 | ||||
| -rw-r--r-- | arch/x86/kernel/cpu/perf_event_amd.c | 6 |
3 files changed, 13 insertions, 1 deletions
diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c index c0df5ed2..bf0f01a 100644 --- a/arch/x86/kernel/cpu/perf_event.c +++ b/arch/x86/kernel/cpu/perf_event.c @@ -829,7 +829,7 @@ static inline void x86_assign_hw_event(struct perf_event *event, } else { hwc->config_base = x86_pmu_config_addr(hwc->idx); hwc->event_base = x86_pmu_event_addr(hwc->idx); - hwc->event_base_rdpmc = hwc->idx; + hwc->event_base_rdpmc = x86_pmu_rdpmc_index(hwc->idx); } } diff --git a/arch/x86/kernel/cpu/perf_event.h b/arch/x86/kernel/cpu/perf_event.h index a7f06a9..7f5c75c 100644 --- a/arch/x86/kernel/cpu/perf_event.h +++ b/arch/x86/kernel/cpu/perf_event.h @@ -326,6 +326,7 @@ struct x86_pmu { unsigned eventsel; unsigned perfctr; int (*addr_offset)(int index, bool eventsel); + int (*rdpmc_index)(int index); u64 (*event_map)(int); int max_events; int num_counters; @@ -459,6 +460,11 @@ static inline unsigned int x86_pmu_event_addr(int index) x86_pmu.addr_offset(index, false) : index); } +static inline int x86_pmu_rdpmc_index(int index) +{ + return x86_pmu.rdpmc_index ? x86_pmu.rdpmc_index(index) : index; +} + int x86_setup_perfctr(struct perf_event *event); int x86_pmu_hw_config(struct perf_event *event); diff --git a/arch/x86/kernel/cpu/perf_event_amd.c b/arch/x86/kernel/cpu/perf_event_amd.c index b60f31c..05462f0 100644 --- a/arch/x86/kernel/cpu/perf_event_amd.c +++ b/arch/x86/kernel/cpu/perf_event_amd.c @@ -173,6 +173,11 @@ static inline int amd_pmu_addr_offset(int index, bool eventsel) return offset; } +static inline int amd_pmu_rdpmc_index(int index) +{ + return index; +} + static int amd_pmu_hw_config(struct perf_event *event) { int ret; @@ -620,6 +625,7 @@ static __initconst const struct x86_pmu amd_pmu = { .eventsel = MSR_K7_EVNTSEL0, .perfctr = MSR_K7_PERFCTR0, .addr_offset = amd_pmu_addr_offset, + .rdpmc_index = amd_pmu_rdpmc_index, .event_map = amd_pmu_event_map, .max_events = ARRAY_SIZE(amd_perfmon_event_map), .num_counters = AMD64_NUM_COUNTERS, |