linux-kernel - [PATCH 5.12 630/677] powerpc/perf: Fix the threshold event selection for memory events in power10

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Date:   Wed, 12 May 2021 16:51:16 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Athira Rajeev <atrajeev@...ux.vnet.ibm.com>,
        Madhavan Srinivasan <maddy@...ux.ibm.com>,
        Michael Ellerman <mpe@...erman.id.au>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.12 630/677] powerpc/perf: Fix the threshold event selection for memory events in power10

From: Athira Rajeev <atrajeev@...ux.vnet.ibm.com>

[ Upstream commit 66d9b7492887d34c711bc05b36c22438acba51b4 ]

Memory events (mem-loads and mem-stores) currently use the threshold
event selection as issue to finish. Power10 supports issue to complete
as part of thresholding which is more appropriate for mem-loads and
mem-stores. Hence fix the event code for memory events to use issue
to complete.

Fixes: a64e697cef23 ("powerpc/perf: power10 Performance Monitoring support")
Signed-off-by: Athira Rajeev <atrajeev@...ux.vnet.ibm.com>
Reviewed-by: Madhavan Srinivasan <maddy@...ux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@...erman.id.au>
Link: https://lore.kernel.org/r/1614840015-1535-1-git-send-email-atrajeev@linux.vnet.ibm.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/powerpc/perf/power10-events-list.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/perf/power10-events-list.h b/arch/powerpc/perf/power10-events-list.h
index e45dafe818ed..93be7197d250 100644
--- a/arch/powerpc/perf/power10-events-list.h
+++ b/arch/powerpc/perf/power10-events-list.h
@@ -75,5 +75,5 @@ EVENT(PM_RUN_INST_CMPL_ALT,			0x00002);
  *     thresh end (TE)
  */
 
-EVENT(MEM_LOADS,				0x34340401e0);
-EVENT(MEM_STORES,				0x343c0401e0);
+EVENT(MEM_LOADS,				0x35340401e0);
+EVENT(MEM_STORES,				0x353c0401e0);
-- 
2.30.2