diff options
| author | Mathieu Poirier <mathieu.poirier@linaro.org> | 2016-04-05 11:53:48 -0600 |
|---|---|---|
| committer | Mathieu Poirier <mathieu.poirier@linaro.org> | 2016-06-01 15:43:31 -0600 |
| commit | 7d2266e97a1348a8781d0940e9d84549e1baa7d4 (patch) | |
| tree | 26793e7b35dfa0b8f38f98a119d182d6e834988b /drivers/hwtracing/coresight/coresight-etm4x-sysfs.c | |
| parent | 2c25a4e91650464a2bcbedc108654086e9904a68 (diff) | |
coresight: etm4x: implementing user/kernel mode tracing
Adding new mode to limit tracing to kernel or user space.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 4f6fce54528e0382281cf199635d098e4b108357)
Diffstat (limited to 'drivers/hwtracing/coresight/coresight-etm4x-sysfs.c')
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-etm4x-sysfs.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c b/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c index a996db7ef2fc..0e80ec668402 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c @@ -440,6 +440,9 @@ static ssize_t mode_store(struct device *dev, else config->vinst_ctrl &= ~BIT(11); + if (config->mode & (ETM_MODE_EXCL_KERN | ETM_MODE_EXCL_USER)) + etm4_config_trace_mode(config); + spin_unlock(&drvdata->spinlock); return size; |