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| author | Jacob Shin <jacob.shin@amd.com> | 2013-02-06 11:26:29 -0600 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-02-16 09:37:27 +0100 |
| commit | e259514eef764a5286873618e34c560ecb6cff13 (patch) | |
| tree | 2ab5514cd2390f2392d8b55988c62ebe0163317d /arch/x86/include/asm/perf_event.h | |
| parent | 6a71e69f78fbcb453f4444a8288ea8b7cdc7cea4 (diff) | |
| download | linux-e259514eef764a5286873618e34c560ecb6cff13.tar.bz2 | |
perf/x86/amd: Enable northbridge performance counters on AMD family 15h
On AMD family 15h processors, there are 4 new performance
counters (in addition to 6 core performance counters) that can
be used for counting northbridge events (i.e. DRAM accesses).
Their bit fields are almost identical to the core performance
counters. However, unlike the core performance counters, these
MSRs are shared between multiple cores (that share the same
northbridge).
We will reuse the same code path as existing family 10h
northbridge event constraints handler logic to enforce
this sharing.
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: Jacob Shin <jacob.shin@amd.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1360171589-6381-7-git-send-email-jacob.shin@amd.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/include/asm/perf_event.h')
| -rw-r--r-- | arch/x86/include/asm/perf_event.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/include/asm/perf_event.h b/arch/x86/include/asm/perf_event.h index 2234eaaecb52..57cb63402213 100644 --- a/arch/x86/include/asm/perf_event.h +++ b/arch/x86/include/asm/perf_event.h @@ -29,9 +29,14 @@ #define ARCH_PERFMON_EVENTSEL_INV (1ULL << 23) #define ARCH_PERFMON_EVENTSEL_CMASK 0xFF000000ULL +#define AMD64_EVENTSEL_INT_CORE_ENABLE (1ULL << 36) #define AMD64_EVENTSEL_GUESTONLY (1ULL << 40) #define AMD64_EVENTSEL_HOSTONLY (1ULL << 41) +#define AMD64_EVENTSEL_INT_CORE_SEL_SHIFT 37 +#define AMD64_EVENTSEL_INT_CORE_SEL_MASK \ + (0xFULL << AMD64_EVENTSEL_INT_CORE_SEL_SHIFT) + #define AMD64_EVENTSEL_EVENT \ (ARCH_PERFMON_EVENTSEL_EVENT | (0x0FULL << 32)) #define INTEL_ARCH_EVENT_MASK \ @@ -46,8 +51,12 @@ #define AMD64_RAW_EVENT_MASK \ (X86_RAW_EVENT_MASK | \ AMD64_EVENTSEL_EVENT) +#define AMD64_RAW_EVENT_MASK_NB \ + (AMD64_EVENTSEL_EVENT | \ + ARCH_PERFMON_EVENTSEL_UMASK) #define AMD64_NUM_COUNTERS 4 #define AMD64_NUM_COUNTERS_CORE 6 +#define AMD64_NUM_COUNTERS_NB 4 #define ARCH_PERFMON_UNHALTED_CORE_CYCLES_SEL 0x3c #define ARCH_PERFMON_UNHALTED_CORE_CYCLES_UMASK (0x00 << 8) |