On Thu, 2016-10-27 at 19:14 -0700, Robert Bragg wrote: > Each metric set is given a sysfs entry like: > > /sys/class/drm/card0/metrics/<guid>/id > > This allows userspace to enumerate the specific sets that are available > for the current system. The 'id' file contains an unsigned integer that > can be used to open the associated metric set via > DRM_IOCTL_I915_PERF_OPEN. The <guid> is a globally unique ID for a > specific OA unit register configuration that can be reliably used by > userspace as a key to lookup corresponding counter meta data and > normalization equations. > > The guid registry is currently maintained as part of gputop along with > the XML metric set descriptions and code generation scripts, ref: > > https://github.com/rib/gputop > > gputop-data/guids.xml > > scripts/update-guids.py > > gputop-data/oa-*.xml > > scripts/i915-perf-kernelgen.py > > $ make -C gputop-data -f Makefile.xml SYSFS=1 WHITELIST=RenderBasic > > Signed-off-by: Robert Bragg <robert@xxxxxxxxxxxxx> > Reviewed-by: Matthew Auld <matthew.auld@xxxxxxxxx> Looks good to me. Reviewed-by: Sourab Gupta <sourab.gupta@xxxxxxxxx> _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
