[PATCH 26/36] drm/amd/display: mark plane as needing reset if plane color mgmt changes

Melissa Wen mwen at igalia.com
Tue May 23 22:15:10 UTC 2023


We took a similar path for CRTC color mgmt changes, since we remap CRTC
degamma to plane/DPP block. Here we can use the status of
`plane->color_mgmt_changed` to detect when a plane color property
changed and recreate the plane accordingly.

Co-developed-by: Joshua Ashton <joshua at froggi.es>
Signed-off-by: Joshua Ashton <joshua at froggi.es>
Signed-off-by: Melissa Wen <mwen at igalia.com>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 +++
 1 file changed, 3 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 a6dd982d7e77..b048c0267670 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -9471,6 +9471,9 @@ static bool should_reset_plane(struct drm_atomic_state *state,
 	if (drm_atomic_crtc_needs_modeset(new_crtc_state))
 		return true;
 
+	if (new_plane_state->color_mgmt_changed)
+		return true;
+
 	/*
 	 * If there are any new primary or overlay planes being added or
 	 * removed then the z-order can potentially change. To ensure
-- 
2.39.2



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