On Wed, Aug 05, 2015 at 11:25:37AM +0530, sourab.gupta@xxxxxxxxx wrote: > From: Sourab Gupta <sourab.gupta@xxxxxxxxx> > > The current perf PMU driver is specific for collection of OA counter > statistics (which may be done in a periodic or asynchronous way). Since > this enables us (and limits us) to render ring, we have no means for > collection of data pertaining to other rings. > > To overcome this limitation, we need to have a new PMU driver which enables > data collection for other rings also (in a non-OA specific mode). > This patch adds a new perf PMU to i915 device private, for handling > profiling requests for non-OA counter data.This data may encompass > timestamps, mmio register values, etc. for the relevant ring. > The new perf PMU will serve these purposes, without constraining itself to > type of data being dumped (which may restrict the user to specific ring > like in case of OA counters). > > The patch introduces this PMU driver alongwith its associated callbacks. > > Signed-off-by: Sourab Gupta <sourab.gupta@xxxxxxxxx> > --- > drivers/gpu/drm/i915/i915_dma.c | 2 + > drivers/gpu/drm/i915/i915_drv.h | 19 ++++ > drivers/gpu/drm/i915/i915_oa_perf.c | 215 ++++++++++++++++++++++++++++++++++++ You have to admit it is a bit odd for the object to be called i915_oa_pmu/i915_gen_pmu and the file i915_oa_perf.c -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
