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Message-Id: <20221003070726.234620614@linuxfoundation.org>
Date: Mon, 3 Oct 2022 09:11:07 +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, Yi Ammy <ammy.yi@...el.com>,
Kan Liang <kan.liang@...ux.intel.com>,
Xing Zhengjun <zhengjun.xing@...ux.intel.com>,
Ian Rogers <irogers@...gle.com>,
Alexander Shishkin <alexander.shishkin@...el.com>,
Andi Kleen <ak@...ux.intel.com>,
Ingo Molnar <mingo@...hat.com>, Jiri Olsa <jolsa@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Peter Zijlstra <peterz@...radead.org>,
Arnaldo Carvalho de Melo <acme@...hat.com>,
Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.19 071/101] perf print-events: Fix "perf list" can not display the PMU prefix for some hybrid cache events
From: Zhengjun Xing <zhengjun.xing@...ux.intel.com>
[ Upstream commit e28c07871c3f2107e316c2590d4703496bd114f4 ]
Some hybrid hardware cache events are only available on one CPU PMU. For
example, 'L1-dcache-load-misses' is only available on cpu_core.
We have supported in the perf list clearly reporting this info, the
function works fine before but recently the argument "config" in API
is_event_supported() is changed from "u64" to "unsigned int" which
caused a regression, the "perf list" then can not display the PMU prefix
for some hybrid cache events.
For the hybrid systems, the PMU type ID is stored at config[63:32],
define config to "unsigned int" will miss the PMU type ID information,
then the regression happened, the config should be defined as "u64".
Before:
# ./perf list |grep "Hardware cache event"
L1-dcache-load-misses [Hardware cache event]
L1-dcache-loads [Hardware cache event]
L1-dcache-stores [Hardware cache event]
L1-icache-load-misses [Hardware cache event]
L1-icache-loads [Hardware cache event]
LLC-load-misses [Hardware cache event]
LLC-loads [Hardware cache event]
LLC-store-misses [Hardware cache event]
LLC-stores [Hardware cache event]
branch-load-misses [Hardware cache event]
branch-loads [Hardware cache event]
dTLB-load-misses [Hardware cache event]
dTLB-loads [Hardware cache event]
dTLB-store-misses [Hardware cache event]
dTLB-stores [Hardware cache event]
iTLB-load-misses [Hardware cache event]
node-load-misses [Hardware cache event]
node-loads [Hardware cache event]
After:
# ./perf list |grep "Hardware cache event"
L1-dcache-loads [Hardware cache event]
L1-dcache-stores [Hardware cache event]
L1-icache-load-misses [Hardware cache event]
LLC-load-misses [Hardware cache event]
LLC-loads [Hardware cache event]
LLC-store-misses [Hardware cache event]
LLC-stores [Hardware cache event]
branch-load-misses [Hardware cache event]
branch-loads [Hardware cache event]
cpu_atom/L1-icache-loads/ [Hardware cache event]
cpu_core/L1-dcache-load-misses/ [Hardware cache event]
cpu_core/node-load-misses/ [Hardware cache event]
cpu_core/node-loads/ [Hardware cache event]
dTLB-load-misses [Hardware cache event]
dTLB-loads [Hardware cache event]
dTLB-store-misses [Hardware cache event]
dTLB-stores [Hardware cache event]
iTLB-load-misses [Hardware cache event]
Fixes: 9b7c7728f4e4ba8d ("perf parse-events: Break out tracepoint and printing")
Reported-by: Yi Ammy <ammy.yi@...el.com>
Reviewed-by: Kan Liang <kan.liang@...ux.intel.com>
Signed-off-by: Xing Zhengjun <zhengjun.xing@...ux.intel.com>
Acked-by: Ian Rogers <irogers@...gle.com>
Cc: Alexander Shishkin <alexander.shishkin@...el.com>
Cc: Andi Kleen <ak@...ux.intel.com>
Cc: Ian Rogers <irogers@...gle.com>
Cc: Ingo Molnar <mingo@...hat.com>
Cc: Jiri Olsa <jolsa@...nel.org>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Link: https://lore.kernel.org/r/20220923030013.3726410-1-zhengjun.xing@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
Stable-dep-of: 71c86cda750b ("perf parse-events: Remove "not supported" hybrid cache events")
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
tools/perf/util/print-events.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/perf/util/print-events.c b/tools/perf/util/print-events.c
index ba1ab5134685..04050d4f6db8 100644
--- a/tools/perf/util/print-events.c
+++ b/tools/perf/util/print-events.c
@@ -239,7 +239,7 @@ void print_sdt_events(const char *subsys_glob, const char *event_glob,
strlist__delete(sdtlist);
}
-static bool is_event_supported(u8 type, unsigned int config)
+static bool is_event_supported(u8 type, u64 config)
{
bool ret = true;
int open_return;
--
2.35.1
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