drm/amd/display: Add primary plane to commits for correct VRR handling
authorMichel Dänzer <mdaenzer@redhat.com>
Wed, 30 Jul 2025 08:09:02 +0000 (10:09 +0200)
committerAlex Deucher <alexander.deucher@amd.com>
Mon, 4 Aug 2025 19:43:58 +0000 (15:43 -0400)
commit3477c1b0972dc1c8a46f78e8fb1fa6966095b5ec
treee31452099c95952bc0cdb6da9dcb2d8d84258c15
parent9f9bddfa31d87b084700a6e9eca1a8b4f8ddcdf6
drm/amd/display: Add primary plane to commits for correct VRR handling

amdgpu_dm_commit_planes calls update_freesync_state_on_stream only for
the primary plane. If a commit affects a CRTC but not its primary plane,
it would previously not trigger a refresh cycle or affect LFC, violating
current UAPI semantics.

Fixes e.g. atomic commits affecting only the cursor plane being limited
to the minimum refresh rate.

Don't do this for the legacy cursor ioctls though, it would break the
UAPI semantics for those.

Suggested-by: Xaver Hugl <xaver.hugl@kde.org>
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3034
Signed-off-by: Michel Dänzer <mdaenzer@redhat.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit cc7bfba95966251b254cb970c21627124da3b7f4)
Cc: stable@vger.kernel.org
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c