Quoting Lionel Landwerlin (2018-10-23 13:07:07) > The way our hardware is designed doesn't seem to let us use the > MI_RECORD_PERF_COUNT command without setting up a circular buffer. > > In the case where the user didn't request OA reports to be available > through the i915 perf stream, we can set the OA buffer to the minimum > size to avoid consuming memory which won't be used by the driver. > > v2: Simplify oa buffer size exponent selection (Chris) > Reuse vma size field (Lionel) > > v3: Restrict size opening parameter to values supported by HW (Chris) > > v4: Drop out of date comment (Matt) > Add debug message when buffer size is rejected (Matt) > > Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@xxxxxxxxx> > Reviewed-by: Matthew Auld <matthew.auld@xxxxxxxxx> For anything that alters the uAPI, please provide a link to the userspace counterpart. Regards, Joonas _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
