Hi This series implements properly working vblank and pageflip completion timestamping for amdgpu in VRR / FreeSync mode.
Now pageflip timestamps for pageflip events always carry the vblank timestamp of the vblank in which the flip completed, and the vblank timestamp is as accurate as in fixed refresh rate mode. It was successfully tested on a DCE-8 gpu by myself, and also lightly tested on a DCN-1 gpu by Nicholas Kazlauskas. I want to thank Nicholas for helpful discussions, testing and feedback on this patch series. The series applies cleanly to current agd5f/drm-next-5.2-wip, against which it was tested. It also applies against current amd-staging-drm-next with a trivial fix to patch 2/4 like shown in the diff below: Thanks, -mario @@ -80,2 +80,3 @@ - uint32_t target, target_vblank; + bool pflip_present = false; - uint64_t last_flip_vblank; @@ -84,3 +85,2 @@ + bool vrr_active = amdgpu_dm_vrr_active(acrtc_state); - bool pflip_present = false; _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
