6.12-stable review patch. If anyone has any objections, please let me know.
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From: Kan Liang kan.liang@linux.intel.com
commit b8c3a2502a205321fe66c356f4b70cabd8e1a5fc upstream.
The only difference between 5 and 6 is the new counters snapshotting group, without the following counters snapshotting enabling patches, it's impossible to utilize the feature in a PEBS record. It's safe to share the same code path with format 5.
Add format 6, so the end user can at least utilize the legacy PEBS features.
Fixes: a932aa0e868f ("perf/x86: Add Lunar Lake and Arrow Lake support") Signed-off-by: Kan Liang kan.liang@linux.intel.com Signed-off-by: Peter Zijlstra (Intel) peterz@infradead.org Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20241216204505.748363-1-kan.liang@linux.intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/events/intel/ds.c | 1 + 1 file changed, 1 insertion(+)
--- a/arch/x86/events/intel/ds.c +++ b/arch/x86/events/intel/ds.c @@ -2496,6 +2496,7 @@ void __init intel_ds_init(void) x86_pmu.large_pebs_flags |= PERF_SAMPLE_TIME; break;
+ case 6: case 5: x86_pmu.pebs_ept = 1; fallthrough;