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Message-Id: <e73b31da42a7840d4247fc8a4a3cea805c2ab618.1723229941.git.robin.murphy@arm.com>
Date: Fri, 9 Aug 2024 20:15:41 +0100
From: Robin Murphy <robin.murphy@....com>
To: will@...nel.org
Cc: mark.rutland@....com,
linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org,
ilkka@...amperecomputing.com
Subject: [PATCH 2/8] perf/arm-cmn: Fix CCLA register offset
Apparently pmu_event_sel is offset by 8 for all CCLA nodes, not just
the CCLA_RNI combination type.
Fixes: 23760a014417 ("perf/arm-cmn: Add CMN-700 support")
Signed-off-by: Robin Murphy <robin.murphy@....com>
---
drivers/perf/arm-cmn.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/perf/arm-cmn.c b/drivers/perf/arm-cmn.c
index fd2122a37f22..0e2e12e2f4fb 100644
--- a/drivers/perf/arm-cmn.c
+++ b/drivers/perf/arm-cmn.c
@@ -2393,10 +2393,13 @@ static int arm_cmn_discover(struct arm_cmn *cmn, unsigned int rgn_offset)
case CMN_TYPE_CXHA:
case CMN_TYPE_CCRA:
case CMN_TYPE_CCHA:
- case CMN_TYPE_CCLA:
case CMN_TYPE_HNS:
dn++;
break;
+ case CMN_TYPE_CCLA:
+ dn->pmu_base += CMN_HNP_PMU_EVENT_SEL;
+ dn++;
+ break;
/* Nothing to see here */
case CMN_TYPE_MPAM_S:
case CMN_TYPE_MPAM_NS:
--
2.39.2.101.g768bb238c484.dirty
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