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| author | Kan Liang <kan.liang@linux.intel.com> | 2024-06-26 07:35:40 -0700 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2024-07-04 16:00:40 +0200 |
| commit | 149fd4712bcd492a031945f92e5ce19879f62311 (patch) | |
| tree | 2e9c673643b46ab3e583fc8d1ec59d68a75dc150 /arch/x86/include/asm/msr-index.h | |
| parent | dce0c74d2d180ce21d074b4f977821a567ab0020 (diff) | |
| download | lwn-149fd4712bcd492a031945f92e5ce19879f62311.tar.gz lwn-149fd4712bcd492a031945f92e5ce19879f62311.zip | |
perf/x86/intel: Support Perfmon MSRs aliasing
The architectural performance monitoring V6 supports a new range of
counters' MSRs in the 19xxH address range. They include all the GP
counter MSRs, the GP control MSRs, and the fixed counter MSRs.
The step between each sibling counter is 4. Add intel_pmu_addr_offset()
to calculate the correct offset.
Add fixedctr in struct x86_pmu to store the address of the fixed counter
0. It can be used to calculate the rest of the fixed counters.
The MSR address of the fixed counter control is not changed.
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lkml.kernel.org/r/20240626143545.480761-9-kan.liang@linux.intel.com
Diffstat (limited to 'arch/x86/include/asm/msr-index.h')
| -rw-r--r-- | arch/x86/include/asm/msr-index.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h index e022e6eb766c..048081b226d7 100644 --- a/arch/x86/include/asm/msr-index.h +++ b/arch/x86/include/asm/msr-index.h @@ -566,6 +566,12 @@ #define MSR_RELOAD_PMC0 0x000014c1 #define MSR_RELOAD_FIXED_CTR0 0x00001309 +/* V6 PMON MSR range */ +#define MSR_IA32_PMC_V6_GP0_CTR 0x1900 +#define MSR_IA32_PMC_V6_GP0_CFG_A 0x1901 +#define MSR_IA32_PMC_V6_FX0_CTR 0x1980 +#define MSR_IA32_PMC_V6_STEP 4 + /* KeyID partitioning between MKTME and TDX */ #define MSR_IA32_MKTME_KEYID_PARTITIONING 0x00000087 |