drm/amd/display: Add function to set pixels per cycle

Add function to set pixels per cycle in DIG stream encoder
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Eric Bernstein <eric.bernstein@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_stream_encoder.h

@@ -577,6 +577,7 @@ struct dcn10_stream_enc_registers {
 
 #define SE_REG_FIELD_LIST_DCN3_2(type) \
 	type DIG_FIFO_OUTPUT_PIXEL_MODE;\
+	type DP_PIXEL_PER_CYCLE_PROCESSING_MODE;\
 	type DIG_SYMCLK_FE_ON;\
 	type DIG_FIFO_READ_START_LEVEL;\
 	type DIG_FIFO_ENABLE;\

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c

@@ -2535,9 +2535,8 @@ void dcn20_enable_stream(struct pipe_ctx *pipe_ctx)
 
 	tg->funcs->set_early_control(tg, early_control);
 
-	if (pipe_ctx->stream_res.stream_enc->funcs->set_input_mode)
-		pipe_ctx->stream_res.stream_enc->funcs->set_input_mode(pipe_ctx->stream_res.stream_enc,
-			timing->pixel_encoding == PIXEL_ENCODING_YCBCR420 ? 2 : 1);
+	if (dc->hwseq->funcs.set_pixels_per_cycle)
+		dc->hwseq->funcs.set_pixels_per_cycle(pipe_ctx);
 
 	/* enable audio only within mode set */
 	if (pipe_ctx->stream_res.audio != NULL) {

drivers/gpu/drm/amd/display/dc/dcn32/dcn32_dio_stream_encoder.c

@@ -54,9 +54,9 @@ static void enc32_dp_set_odm_combine(
 	struct stream_encoder *enc,
 	bool odm_combine)
 {
-	//struct dcn10_stream_encoder *enc1 = DCN10STRENC_FROM_STRENC(enc);
+	struct dcn10_stream_encoder *enc1 = DCN10STRENC_FROM_STRENC(enc);
 
-	//TODO: REG_UPDATE(DP_PIXEL_FORMAT, DP_PIXEL_COMBINE, odm_combine);
+	REG_UPDATE(DP_PIXEL_FORMAT, DP_PIXEL_PER_CYCLE_PROCESSING_MODE, odm_combine ? 1 : 0);
 }
 
 /* setup stream encoder in dvi mode */

drivers/gpu/drm/amd/display/dc/dcn32/dcn32_dio_stream_encoder.h

@@ -96,6 +96,7 @@
 #define SE_COMMON_MASK_SH_LIST_DCN32_BASE(mask_sh)\
 	SE_SF(DP0_DP_PIXEL_FORMAT, DP_PIXEL_ENCODING, mask_sh),\
 	SE_SF(DP0_DP_PIXEL_FORMAT, DP_COMPONENT_DEPTH, mask_sh),\
+	SE_SF(DP0_DP_PIXEL_FORMAT, DP_PIXEL_PER_CYCLE_PROCESSING_MODE, mask_sh),\
 	SE_SF(DIG0_HDMI_CONTROL, HDMI_PACKET_GEN_VERSION, mask_sh),\
 	SE_SF(DIG0_HDMI_CONTROL, HDMI_KEEPOUT_MODE, mask_sh),\
 	SE_SF(DIG0_HDMI_CONTROL, HDMI_DEEP_COLOR_ENABLE, mask_sh),\

drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c

@@ -1114,3 +1114,20 @@ unsigned int dcn32_calculate_dccg_k1_k2_values(struct pipe_ctx *pipe_ctx, unsign
 
 	return odm_combine_factor;
 }
+
+void dcn32_set_pixels_per_cycle(struct pipe_ctx *pipe_ctx)
+{
+	uint32_t pix_per_cycle = 1;
+	uint32_t odm_combine_factor = 1;
+
+	if (!pipe_ctx || !pipe_ctx->stream || !pipe_ctx->stream_res.stream_enc)
+		return;
+
+	odm_combine_factor = get_odm_config(pipe_ctx, NULL);
+	if (optc2_is_two_pixels_per_containter(&pipe_ctx->stream->timing) || odm_combine_factor > 1)
+		pix_per_cycle = 2;
+
+	if (pipe_ctx->stream_res.stream_enc->funcs->set_input_mode)
+		pipe_ctx->stream_res.stream_enc->funcs->set_input_mode(pipe_ctx->stream_res.stream_enc,
+				pix_per_cycle);
+}

drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.h

@@ -70,6 +70,8 @@ void dcn32_update_odm(struct dc *dc, struct dc_state *context, struct pipe_ctx *
 
 unsigned int dcn32_calculate_dccg_k1_k2_values(struct pipe_ctx *pipe_ctx, unsigned int *k1_div, unsigned int *k2_div);
 
+void dcn32_set_pixels_per_cycle(struct pipe_ctx *pipe_ctx);
+
 void dcn32_subvp_pipe_control_lock(struct dc *dc,
 		struct dc_state *context,
 		bool lock,

drivers/gpu/drm/amd/display/dc/dcn32/dcn32_init.c

@@ -142,6 +142,7 @@ static const struct hwseq_private_funcs dcn32_private_funcs = {
 	.subvp_update_force_pstate = dcn32_subvp_update_force_pstate,
 	.update_mall_sel = dcn32_update_mall_sel,
 	.calculate_dccg_k1_k2_values = dcn32_calculate_dccg_k1_k2_values,
+	.set_pixels_per_cycle = dcn32_set_pixels_per_cycle,
 };
 
 void dcn32_hw_sequencer_init_functions(struct dc *dc)

drivers/gpu/drm/amd/display/dc/inc/hw_sequencer_private.h

@@ -153,6 +153,7 @@ struct hwseq_private_funcs {
 	unsigned int (*calculate_dccg_k1_k2_values)(struct pipe_ctx *pipe_ctx,
 			unsigned int *k1_div,
 			unsigned int *k2_div);
+	void (*set_pixels_per_cycle)(struct pipe_ctx *pipe_ctx);
 #endif
 };