On 2023-08-10 12:03, Melissa Wen wrote:
> 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.
> 
> Signed-off-by: Melissa Wen <m...@igalia.com>
> ---
>  .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c |  1 +
>  .../amd/display/amdgpu_dm/amdgpu_dm_color.c   | 25 +++++++++++++++++++
>  2 files changed, 26 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 dfe61c5ed49e..f239410234b3 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -9578,6 +9578,7 @@ 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 86a918ab82be..7ff329101fd4 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
> @@ -1158,6 +1158,8 @@ 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;
> @@ -1209,6 +1211,29 @@ 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;
> +
> +             /*
> +              * So far, if we have both plane and CRTC CTM, plane CTM takes
> +              * the priority and we discard data for CRTC CTM, as
> +              * implemented in dcn10_program_gamut_remap().  However, we

Isn't it the opposite? If stream (crtc) has a CTM we program that, only if
stream doesn't have a CTM we program the plane one?

Harry

> +              * have MPC gamut_remap_matrix from DCN3 family, therefore we
> +              * can remap MPC programing of the matrix to MPC block and
> +              * provide support for both DPP and MPC matrix at the same
> +              * time.
> +              */
> +             __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, color_caps);
>  }

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