On Tue, 2021-06-08 at 13:15 +0200, Juan A. Suarez Romero wrote: > The V3D engine has several hardware performance counters that can of > interest for userspace performance analysis tools. > > This exposes new ioctls to create and destroy performance monitor > objects, as well as to query the counter values. > > Each created performance monitor object has an ID that can be attached > to CL/CSD submissions, so the driver enables the requested counters > when > the job is submitted, and updates the performance monitor values when > the job is done. > > It is up to the user to ensure all the jobs have been finished before > getting the performance monitor values. It is also up to the user to > properly synchronize BCL jobs when submitting jobs with different > performance monitors attached. > > Cc: Daniel Vetter <daniel@xxxxxxxx> > Cc: David Airlie <airlied@xxxxxxxx> > Cc: Emma Anholt <emma@xxxxxxxxxx> > To: dri-devel@xxxxxxxxxxxxxxxxxxxxx > Signed-off-by: Juan A. Suarez Romero <jasuarez@xxxxxxxxxx> Here is a link to Mesa MR that implements the support in the driver: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10666 J.A.
