On Wed, Nov 16, 2016 at 11:18:03PM +0200, Abdiel Janulgue wrote: > if (o->flags & TEST_WITH_DUMMY_BCS) > - emit_dummy_load__bcs(o, 1); > + igt_spin_batch_wait(drm_fd, NSEC_PER_SEC, I915_EXEC_BLT, > + o->fb_info[o->current_fb_id].gem_handle); This is counterintuitive for the purpose of testing flips. We don't want the fb to be idle, which is what will happen if we wait upon it. We want to set off a spinner that will only complete once we have queued the flip. We can eliminate the 1s dummy load by being explicit in the ordering. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx