[PATCH v2 31/34] drm/amd/display: set stream gamut remap matrix to MPC for DCN301

[Melissa Wen]

dc->caps.color.mpc.gamut_remap says there is a post-blending color block
for gamut remap matrix for DCN3 HW family and newer versions. However,
those drivers still follow DCN10 programming that remap stream
gamut_remap_matrix to DPP (pre-blending).

To enable pre-blending and post-blending gamut_remap matrix supports at
the same time, set stream gamut_remap to MPC and plane gamut_remap to
DPP for DCN301 that support both.

It was tested using IGT KMS color tests for DRM CRTC CTM property and it
preserves test results.

Signed-off-by: Melissa Wen <mwen at igalia.com>
---
 .../drm/amd/display/dc/dcn30/dcn30_hwseq.c    | 37 +++++++++++++++++++
 .../drm/amd/display/dc/dcn30/dcn30_hwseq.h    |  3 ++
 .../drm/amd/display/dc/dcn301/dcn301_init.c   |  2 +-
 3 files changed, 41 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c
index 4cd4ae07d73d..4fb4e9ec03f1 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c
@@ -186,6 +186,43 @@ bool dcn30_set_input_transfer_func(struct dc *dc,
 	return result;
 }
 
+void dcn30_program_gamut_remap(struct pipe_ctx *pipe_ctx)
+{
+	int i = 0;
+	struct dpp_grph_csc_adjustment dpp_adjust;
+	struct mpc_grph_gamut_adjustment mpc_adjust;
+	int mpcc_id = pipe_ctx->plane_res.hubp->inst;
+	struct mpc *mpc = pipe_ctx->stream_res.opp->ctx->dc->res_pool->mpc;
+
+	memset(&dpp_adjust, 0, sizeof(dpp_adjust));
+	dpp_adjust.gamut_adjust_type = GRAPHICS_GAMUT_ADJUST_TYPE_BYPASS;
+
+	if (pipe_ctx->plane_state &&
+	    pipe_ctx->plane_state->gamut_remap_matrix.enable_remap == true) {
+		dpp_adjust.gamut_adjust_type = GRAPHICS_GAMUT_ADJUST_TYPE_SW;
+		for (i = 0; i < CSC_TEMPERATURE_MATRIX_SIZE; i++)
+			dpp_adjust.temperature_matrix[i] =
+				pipe_ctx->plane_state->gamut_remap_matrix.matrix[i];
+	}
+
+	pipe_ctx->plane_res.dpp->funcs->dpp_set_gamut_remap(pipe_ctx->plane_res.dpp,
+							    &dpp_adjust);
+
+	memset(&mpc_adjust, 0, sizeof(mpc_adjust));
+	mpc_adjust.gamut_adjust_type = GRAPHICS_GAMUT_ADJUST_TYPE_BYPASS;
+
+	if (pipe_ctx->top_pipe == NULL) {
+		if (pipe_ctx->stream->gamut_remap_matrix.enable_remap == true) {
+			mpc_adjust.gamut_adjust_type = GRAPHICS_GAMUT_ADJUST_TYPE_SW;
+			for (i = 0; i < CSC_TEMPERATURE_MATRIX_SIZE; i++)
+				mpc_adjust.temperature_matrix[i] =
+					pipe_ctx->stream->gamut_remap_matrix.matrix[i];
+		}
+	}
+
+	mpc->funcs->set_gamut_remap(mpc, mpcc_id, &mpc_adjust);
+}
+
 bool dcn30_set_output_transfer_func(struct dc *dc,
 				struct pipe_ctx *pipe_ctx,
 				const struct dc_stream_state *stream)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.h b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.h
index a24a8e33a3d2..cb34ca932a5f 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.h
+++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.h
@@ -58,6 +58,9 @@ bool dcn30_set_blend_lut(struct pipe_ctx *pipe_ctx,
 bool dcn30_set_input_transfer_func(struct dc *dc,
 				struct pipe_ctx *pipe_ctx,
 				const struct dc_plane_state *plane_state);
+
+void dcn30_program_gamut_remap(struct pipe_ctx *pipe_ctx);
+
 bool dcn30_set_output_transfer_func(struct dc *dc,
 				struct pipe_ctx *pipe_ctx,
 				const struct dc_stream_state *stream);
diff --git a/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_init.c b/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_init.c
index 257df8660b4c..81fd50ee97c3 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_init.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_init.c
@@ -33,7 +33,7 @@
 #include "dcn301_init.h"
 
 static const struct hw_sequencer_funcs dcn301_funcs = {
-	.program_gamut_remap = dcn10_program_gamut_remap,
+	.program_gamut_remap = dcn30_program_gamut_remap,
 	.init_hw = dcn10_init_hw,
 	.power_down_on_boot = dcn10_power_down_on_boot,
 	.apply_ctx_to_hw = dce110_apply_ctx_to_hw,
-- 
2.40.1