Kernel/linux-next
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git synced 2025-01-17 22:05:08 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

perf test: Make stat test work on DT devices

Browse Source 
PMUs aren't listed in /sys/devices/ on DT devices, so change the search
directory to /sys/bus/event_source/devices which works everywhere. Also
add armv8_cortex_* as a known PMU type to search for to make the test
run on more devices.

Acked-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: James Clark <james.clark@linaro.org>
Cc: Yang Jihong <yangjihong@bytedance.com>
Cc: Dominique Martinet <asmadeus@codewreck.org>
Cc: Colin Ian King <colin.i.king@gmail.com>
Cc: Howard Chu <howardchu95@gmail.com>
Cc: Yunseong Kim <yskelg@gmail.com>
Cc: Ze Gao <zegao2021@gmail.com>
Cc: Yicong Yang <yangyicong@hisilicon.com>
Cc: Weilin Wang <weilin.wang@intel.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Jing Zhang <renyu.zj@linux.alibaba.com>
Cc: Yang Li <yang.lee@linux.alibaba.com>
Cc: Leo Yan <leo.yan@linux.dev>
Cc: ak@linux.intel.com
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Sun Haiyong <sunhaiyong@loongson.cn>
Cc: John Garry <john.g.garry@oracle.com>
Link: https://lore.kernel.org/r/20240926144851.245903-7-james.clark@linaro.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
This commit is contained in:
James Clark 2024-09-26 15:48:37 +01:00 committed by Namhyung Kim
parent d7d156fc5e
commit 14b6b269f4
1 changed files with 7 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
tools/perf/tests/shell/stat.sh
View File

@ -117,16 +117,18 @@ test_cputype() {
# Find a known PMU for cputype.
pmu=""
for i in cpu cpu_atom armv8_pmuv3_0
devs="/sys/bus/event_source/devices"
for i in $devs/cpu $devs/cpu_atom $devs/armv8_pmuv3_0 $devs/armv8_cortex_*
do
if test -d "/sys/devices/$i"
i_base=$(basename "$i")
if test -d "$i"
then
pmu="$i"
pmu="$i_base"
break
fi
if perf stat -e "$i/instructions/" true > /dev/null 2>&1
if perf stat -e "$i_base/instructions/" true > /dev/null 2>&1
then
pmu="$i"
pmu="$i_base"
break
fi
done