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FAILED: patch "[PATCH] perf/x86/intel: Fix pebs event constraints for ADL" failed to apply to 5.15-stable tree

PATCH [email protected] 1 participant 1 message Aug 29, 2022

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The patch below does not apply to the 5.15-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From cde643ff75bc20c538dfae787ca3b587bab16b50 Mon Sep 17 00:00:00 2001
From: Kan Liang <[email protected]>
Date: Thu, 18 Aug 2022 11:44:29 -0700
Subject: [PATCH] perf/x86/intel: Fix pebs event constraints for ADL

According to the latest event list, the LOAD_LATENCY PEBS event only works on the GP counter 0 and 1 for ADL and RPL.

Update the pebs event constraints table.

Fixes f83d2f91d259 ("perf/x86/intel: Add Alder Lake Hybrid support")
arch/x86/events/intel/ds.c +1 -1
index e5b587499122..de1f55d51784 100644
@@ -830,7 +830,7 @@ struct event_constraint intel_glm_pebs_event_constraints[] = {
 
 struct event_constraint intel_grt_pebs_event_constraints[] = {
 	/* Allow all events as PEBS with no flags */
-	INTEL_HYBRID_LAT_CONSTRAINT(0x5d0, 0xf),
+	INTEL_HYBRID_LAT_CONSTRAINT(0x5d0, 0x3),
 	INTEL_HYBRID_LAT_CONSTRAINT(0x6d0, 0xf),
 	EVENT_CONSTRAINT_END
 };