Re: [PATCH v4 2/6] perf/core: Use ioctl to communicate driver configuration to kernel

2018-11-28 Thread Greg KH
On Wed, Nov 28, 2018 at 03:01:14PM -0700, Mathieu Poirier wrote: > This patch adds the mechanic needed for user space to send PMU specific > configuration to the kernel driver using an ioctl() command. That way > events can keep track of options that don't fit in the perf_event_attr > structure li

[PATCH v4 2/6] perf/core: Use ioctl to communicate driver configuration to kernel

2018-11-28 Thread Mathieu Poirier
This patch adds the mechanic needed for user space to send PMU specific configuration to the kernel driver using an ioctl() command. That way events can keep track of options that don't fit in the perf_event_attr structure like the selection of a CoreSight sink to use for the session. Signed-off-