mirror of
https://github.com/hardkernel/linux.git
synced 2026-04-12 07:58:10 +09:00
1efb79086e
It is entirely possible that some PMUs need specific configuration that is currently not found in the perf options before a session can be setup. It is the case for the CoreSight PMU where a sink needs to be provided. That sink doesn't fall in any of the current perf options. As such this patch adds the capability to receive driver specific configuration using the existing ioctl() mechanism. Once the configuration has been pushed down the kernel PMU callbacks are used to deal with the information sent from user space. Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>