mirror_ubuntu-kernels/tools
James Clark 0b783d2e82 perf tests: test_arm_coresight: Simplify source iteration
There are two reasons to do this, firstly there is a shellcheck warning
in cs_etm_dev_name(), which can be completely deleted. And secondly the
current iteration method doesn't support systems with both ETE and ETM
because it picks one or the other. There isn't a known system with this
configuration, but it could happen in the future.

Iterating over all the sources for each CPU can be done by going through
/sys/bus/event_source/devices/cs_etm/cpu* and following the symlink back
to the Coresight device in /sys/bus/coresight/devices. This will work
whether the device is ETE, ETM or any future name, and is much simpler
and doesn't require any hard coded version numbers

Suggested-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Ian Rogers <irogers@google.com>
Tested-by: Leo Yan <leo.yan@linaro.org>
Cc: tianruidong@linux.alibaba.com
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Anushree Mathur <anushree.mathur@linux.vnet.ibm.com>
Cc: Tiezhu Yang <yangtiezhu@loongson.cn>
Cc: atrajeev@linux.vnet.ibm.com
Cc: coresight@lists.linaro.org
Link: https://lore.kernel.org/r/20231023131550.487760-1-james.clark@arm.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2023-10-26 10:58:10 -07:00
..
accounting
arch tools arch x86: Sync the msr-index.h copy with the kernel sources 2023-09-13 08:53:37 -03:00
bootconfig
bpf bpftool: Fix build warnings with -Wtype-limits 2023-08-30 08:39:00 +02:00
build tools/build: Fix -s detection code in tools/build/Makefile.build 2023-10-18 15:29:35 -07:00
certs
cgroup iocost_monitor: improve it by adding iocg wait_ms 2023-08-08 15:43:03 -06:00
counter
crypto/ccp
debugging
edid
firewire
firmware
gpio
hv
iio tools: iio: iio_generic_buffer: Fix some integer type and calculation 2023-07-29 15:59:20 +01:00
include perf tools: Add get_unaligned_leNN() 2023-10-17 12:40:02 -07:00
kvm/kvm_stat
laptop
leds
lib libperf rc_check: Add RC_CHK_EQUAL 2023-10-25 13:37:22 -07:00
memory-model
mm tools/mm: fix undefined reference to pthread_once 2023-09-05 10:13:45 -07:00
net/ynl tools/net/ynl: Add support for create flags 2023-08-27 17:17:10 -07:00
objtool objtool/x86: Fixup frame-pointer vs rethunk 2023-08-17 00:44:35 +02:00
pci
pcmcia
perf perf tests: test_arm_coresight: Simplify source iteration 2023-10-26 10:58:10 -07:00
power More power management updates for 6.6-rc1 2023-09-04 15:21:55 -07:00
rcu
scripts tools/build: Fix -s detection code in tools/scripts/Makefile.include 2023-10-18 15:29:47 -07:00
spi
testing XArray/IDA updates for 6.6 2023-09-08 21:46:26 -07:00
thermal
time
tracing
usb
verification
virtio
wmi
workqueue workqueue: Implement non-strict affinity scope for unbound workqueues 2023-08-07 15:57:25 -10:00
Makefile