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| author | Mathieu Poirier <mathieu.poirier@linaro.org> | 2016-04-05 20:53:48 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-05-02 00:12:14 +0300 |
| commit | 4f6fce54528e0382281cf199635d098e4b108357 (patch) | |
| tree | dbb8047834bae2ffff4c86813fa5c2d8991d4285 /drivers/hwtracing/coresight/coresight-etm4x-sysfs.c | |
| parent | c38a9ec2b2c12c38abca0b7954ed793f26969835 (diff) | |
| download | linux-4f6fce54528e0382281cf199635d098e4b108357.tar.xz | |
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>
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; |