diff options
| author |   Mathieu Poirier <mathieu.poirier@linaro.org> | 2019-04-25 13:52:52 -0600 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-04-25 22:00:16 +0200 |
| commit | 82500a810ee26ac542d128499d7adae163e61adb (patch) | |
| tree | 4d2b991056f39067e7aa75fe41efe3fe06a83d7b /drivers/hwtracing/coresight/coresight-etm-perf.c | |
| parent | coresight: pmu: Adding ITRACE property to cs_etm PMU (diff) | |
| download | linux-dev-82500a810ee26ac542d128499d7adae163e61adb.tar.xz linux-dev-82500a810ee26ac542d128499d7adae163e61adb.zip | |
coresight: etm4x: Add kernel configuration for CONTEXTID
Set the proper bit in the configuration register when contextID tracing
has been requested by user space. That way PE_CONTEXT elements are
generated by the tracers when a process is installed on a CPU.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Tested-by: Leo Yan <leo.yan@linaro.org>
Tested-by: Robert Walker <robert.walker@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hwtracing/coresight/coresight-etm-perf.c')
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-etm-perf.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/hwtracing/coresight/coresight-etm-perf.c b/drivers/hwtracing/coresight/coresight-etm-perf.c index 25ae56e924bb..bbfed70b3402 100644 --- a/drivers/hwtracing/coresight/coresight-etm-perf.c +++ b/drivers/hwtracing/coresight/coresight-etm-perf.c @@ -29,6 +29,7 @@ static DEFINE_PER_CPU(struct coresight_device *, csdev_src); /* ETMv3.5/PTM's ETMCR is 'config' */ PMU_FORMAT_ATTR(cycacc, "config:" __stringify(ETM_OPT_CYCACC)); +PMU_FORMAT_ATTR(contextid, "config:" __stringify(ETM_OPT_CTXTID)); PMU_FORMAT_ATTR(timestamp, "config:" __stringify(ETM_OPT_TS)); PMU_FORMAT_ATTR(retstack, "config:" __stringify(ETM_OPT_RETSTK)); /* Sink ID - same for all ETMs */ @@ -36,6 +37,7 @@ PMU_FORMAT_ATTR(sinkid, "config2:0-31"); static struct attribute *etm_config_formats_attr[] = { &format_attr_cycacc.attr, + &format_attr_contextid.attr, &format_attr_timestamp.attr, &format_attr_retstack.attr, &format_attr_sinkid.attr, |