Map the plane CTM driver-specific property to DC plane, instead of DC
stream. The remaining steps to program DPP block are already implemented
on DC shared-code.
v3:
- fix comment about plane and CRTC CTMs priorities (Harry)
Reviewed-by: Harry Wentland <harry.wentland@xxxxxxx>
Signed-off-by: Melissa Wen <mwen@xxxxxxxxxx>
---
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 1 +
.../amd/display/amdgpu_dm/amdgpu_dm_color.c | 26 +++++++++++++++++++
2 files changed, 27 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 ef39255bb37e..e5f1086da09f 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -9686,6 +9686,7 @@ static bool should_reset_plane(struct drm_atomic_state *state,
if (dm_old_other_state->degamma_tf != dm_new_other_state->degamma_tf ||
dm_old_other_state->degamma_lut != dm_new_other_state->degamma_lut ||
dm_old_other_state->hdr_mult != dm_new_other_state->hdr_mult ||
+ dm_old_other_state->ctm != dm_new_other_state->ctm ||
dm_old_other_state->shaper_lut != dm_new_other_state->shaper_lut ||
dm_old_other_state->shaper_tf != dm_new_other_state->shaper_tf ||
dm_old_other_state->lut3d != dm_new_other_state->lut3d ||
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c
index 3eed47736b26..d52c3333ea13 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c
@@ -1172,6 +1172,8 @@ int amdgpu_dm_update_plane_color_mgmt(struct dm_crtc_state *crtc,
struct dc_plane_state *dc_plane_state)
{
struct amdgpu_device *adev = drm_to_adev(crtc->base.state->dev);
+ struct dm_plane_state *dm_plane_state = to_dm_plane_state(plane_state);
+ struct drm_color_ctm *ctm = NULL;
struct dc_color_caps *color_caps = NULL;
bool has_crtc_cm_degamma;
int ret;
@@ -1224,5 +1226,29 @@ int amdgpu_dm_update_plane_color_mgmt(struct dm_crtc_state *crtc,
return ret;
}
+ /* Setup CRTC CTM. */
+ if (dm_plane_state->ctm) {
+ ctm = (struct drm_color_ctm *)dm_plane_state->ctm->data;
+ /*
+ * DCN2 and older don't support both pre-blending and
+ * post-blending gamut remap. For this HW family, if we have
+ * the plane and CRTC CTMs simultaneously, CRTC CTM takes
+ * priority, and we discard plane CTM, as implemented in
+ * dcn10_program_gamut_remap(). However, DCN3+ has DPP
+ * (pre-blending) and MPC (post-blending) `gamut remap` blocks;
+ * therefore, we can program plane and CRTC CTMs together by
+ * mapping CRTC CTM to MPC and keeping plane CTM setup at DPP,
+ * as it's done by dcn30_program_gamut_remap().
+ */
+ __drm_ctm_to_dc_matrix(ctm, dc_plane_state->gamut_remap_matrix.matrix);
+
+ dc_plane_state->gamut_remap_matrix.enable_remap = true;
+ dc_plane_state->input_csc_color_matrix.enable_adjustment = false;
+ } else {
+ /* Bypass CTM. */
+ dc_plane_state->gamut_remap_matrix.enable_remap = false;
+ dc_plane_state->input_csc_color_matrix.enable_adjustment = false;
+ }
+
return amdgpu_dm_plane_set_color_properties(plane_state, dc_plane_state);
}
--
2.40.1
