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| author | Dapeng Mi <dapeng1.mi@linux.intel.com> | 2026-04-30 03:25:57 +0300 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2026-05-05 13:47:22 +0300 |
| commit | aa4384bc8f4360167f3c3d5322121fe892289ea2 (patch) | |
| tree | 8740cdef546ccc837c01f247ed8817cfb229f487 | |
| parent | 1271aeccc307066315b2d3b0d5af2510e27018b5 (diff) | |
| download | linux-aa4384bc8f4360167f3c3d5322121fe892289ea2.tar.xz | |
perf/x86/intel: Enable auto counter reload for DMR
Panther cove µarch starts to support auto counter reload (ACR), but the
static_call intel_pmu_enable_acr_event() is not updated for the Panther
Cove µarch used by DMR. It leads to the auto counter reload is not
really enabled on DMR.
Update static_call intel_pmu_enable_acr_event() in intel_pmu_init_pnc().
Fixes: d345b6bb8860 ("perf/x86/intel: Add core PMU support for DMR")
Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20260430002558.712334-5-dapeng1.mi@linux.intel.com
| -rw-r--r-- | arch/x86/events/intel/core.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c index ead6d95cec6a..dd1e3aa75ee9 100644 --- a/arch/x86/events/intel/core.c +++ b/arch/x86/events/intel/core.c @@ -7531,6 +7531,7 @@ static __always_inline void intel_pmu_init_pnc(struct pmu *pmu) hybrid(pmu, event_constraints) = intel_pnc_event_constraints; hybrid(pmu, pebs_constraints) = intel_pnc_pebs_event_constraints; hybrid(pmu, extra_regs) = intel_pnc_extra_regs; + static_call_update(intel_pmu_enable_acr_event, intel_pmu_enable_acr); } static __always_inline void intel_pmu_init_skt(struct pmu *pmu) |