From 7316c4ad299663a16ca9ce13e5e817b4ca760809 Mon Sep 17 00:00:00 2001 From: Nicholas Kazlauskas Date: Wed, 1 May 2019 10:26:09 -0400 Subject: [PATCH] drm/amd/display: Reset planes for color management changes [Why] For commits with allow_modeset=false and CRTC degamma changes the planes aren't reset. This results in incorrect rendering. [How] Reset the planes when color management has changed on the CRTC. Technically this will include regamma changes as well, but it doesn't really after legacy userspace since those commit with allow_modeset=true. Signed-off-by: Nicholas Kazlauskas Reviewed-by: Harry Wentland Acked-by: Leo Li Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 64dff3f..95d5966 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -6354,6 +6354,10 @@ static bool should_reset_plane(struct drm_atomic_state *state, if (!new_crtc_state) return true; + /* CRTC Degamma changes currently require us to recreate planes. */ + if (new_crtc_state->color_mgmt_changed) + return true; + if (drm_atomic_crtc_needs_modeset(new_crtc_state)) return true; -- 2.7.4