drm/amd/display: Toggle additional RCO options in DCN35

[Why]
With root clock optimization now enabled for DCN35 there
are still RCO registers still not being toggled

[How]
Add in logic to toggle RCO registers for DPPCLK,
DPSTREAMCLK and DSCCLK
Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Acked-by: Roman Li <roman.li@amd.com>
Signed-off-by: Daniel Miess <daniel.miess@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/dc.h

@@ -695,6 +695,7 @@ enum pg_hw_pipe_resources {
 	PG_MPCC,
 	PG_OPP,
 	PG_OPTC,
+	PG_DPSTREAM,
 	PG_HW_PIPE_RESOURCES_NUM_ELEMENT
 };
 

drivers/gpu/drm/amd/display/dc/dpp/dcn10/dcn10_dpp.h

@@ -1090,7 +1090,8 @@
 	type DPP_CLOCK_ENABLE; \
 	type CM_HDR_MULT_COEF; \
 	type CUR0_FP_BIAS; \
-	type CUR0_FP_SCALE;
+	type CUR0_FP_SCALE;\
+	type DISPCLK_R_GATE_DISABLE;
 
 struct dcn_dpp_shift {
 	TF_REG_FIELD_LIST(uint8_t)

drivers/gpu/drm/amd/display/dc/dpp/dcn35/dcn35_dpp.c

@@ -37,14 +37,73 @@
 	((const struct dcn35_dpp_shift *)(dpp->tf_shift))->field_name, \
 	((const struct dcn35_dpp_mask *)(dpp->tf_mask))->field_name
 
-bool dpp35_construct(struct dcn3_dpp *dpp, struct dc_context *ctx,
+void dpp35_dppclk_control(
+		struct dpp *dpp_base,
+		bool dppclk_div,
+		bool enable)
+{
+	struct dcn20_dpp *dpp = TO_DCN20_DPP(dpp_base);
+
+	if (enable) {
+		if (dpp->tf_mask->DPPCLK_RATE_CONTROL)
+			REG_UPDATE_2(DPP_CONTROL,
+				DPPCLK_RATE_CONTROL, dppclk_div,
+				DPP_CLOCK_ENABLE, 1);
+		else
+			REG_UPDATE_2(DPP_CONTROL,
+					DPP_CLOCK_ENABLE, 1,
+					DISPCLK_R_GATE_DISABLE, 1);
+	} else
+		REG_UPDATE_2(DPP_CONTROL,
+				DPP_CLOCK_ENABLE, 0,
+				DISPCLK_R_GATE_DISABLE, 0);
+}
+
+static struct dpp_funcs dcn35_dpp_funcs = {
+	.dpp_program_gamcor_lut		= dpp3_program_gamcor_lut,
+	.dpp_read_state				= dpp30_read_state,
+	.dpp_reset					= dpp_reset,
+	.dpp_set_scaler				= dpp1_dscl_set_scaler_manual_scale,
+	.dpp_get_optimal_number_of_taps	= dpp3_get_optimal_number_of_taps,
+	.dpp_set_gamut_remap		= dpp3_cm_set_gamut_remap,
+	.dpp_set_csc_adjustment		= NULL,
+	.dpp_set_csc_default		= NULL,
+	.dpp_program_regamma_pwl	= NULL,
+	.dpp_set_pre_degam			= dpp3_set_pre_degam,
+	.dpp_program_input_lut		= NULL,
+	.dpp_full_bypass			= dpp1_full_bypass,
+	.dpp_setup					= dpp3_cnv_setup,
+	.dpp_program_degamma_pwl	= NULL,
+	.dpp_program_cm_dealpha		= dpp3_program_cm_dealpha,
+	.dpp_program_cm_bias		= dpp3_program_cm_bias,
+
+	.dpp_program_blnd_lut		= NULL, // BLNDGAM is removed completely in DCN3.2 DPP
+	.dpp_program_shaper_lut		= NULL, // CM SHAPER block is removed in DCN3.2 DPP, (it is in MPCC, programmable before or after BLND)
+	.dpp_program_3dlut			= NULL, // CM 3DLUT block is removed in DCN3.2 DPP, (it is in MPCC, programmable before or after BLND)
+
+	.dpp_program_bias_and_scale	= NULL,
+	.dpp_cnv_set_alpha_keyer	= dpp2_cnv_set_alpha_keyer,
+	.set_cursor_attributes		= dpp3_set_cursor_attributes,
+	.set_cursor_position		= dpp1_set_cursor_position,
+	.set_optional_cursor_attributes	= dpp1_cnv_set_optional_cursor_attributes,
+	.dpp_dppclk_control			= dpp35_dppclk_control,
+	.dpp_set_hdr_multiplier		= dpp3_set_hdr_multiplier,
+	.dpp_get_gamut_remap		= dpp3_cm_get_gamut_remap,
+};
+
+
+bool dpp35_construct(
+	struct dcn3_dpp *dpp, struct dc_context *ctx,
 	uint32_t inst, const struct dcn3_dpp_registers *tf_regs,
 	const struct dcn35_dpp_shift *tf_shift,
 	const struct dcn35_dpp_mask *tf_mask)
 {
-	return dpp32_construct(dpp, ctx, inst, tf_regs,
+	bool ret = dpp32_construct(dpp, ctx, inst, tf_regs,
 			      (const struct dcn3_dpp_shift *)(tf_shift),
 			      (const struct dcn3_dpp_mask *)(tf_mask));
+
+	dpp->base.funcs = &dcn35_dpp_funcs;
+	return ret;
 }
 
 void dpp35_set_fgcg(struct dcn3_dpp *dpp, bool enable)

drivers/gpu/drm/amd/display/dc/dpp/dcn35/dcn35_dpp.h

@@ -31,7 +31,9 @@
 
 #define DPP_REG_LIST_SH_MASK_DCN35(mask_sh)  \
 	DPP_REG_LIST_SH_MASK_DCN30_COMMON(mask_sh), \
-		TF_SF(DPP_TOP0_DPP_CONTROL, DPP_FGCG_REP_DIS, mask_sh)
+		TF_SF(DPP_TOP0_DPP_CONTROL, DPP_FGCG_REP_DIS, mask_sh), \
+		TF_SF(DPP_TOP0_DPP_CONTROL, DPP_FGCG_REP_DIS, mask_sh), \
+		TF_SF(DPP_TOP0_DPP_CONTROL, DISPCLK_R_GATE_DISABLE, mask_sh)
 
 #define DPP_REG_FIELD_LIST_DCN35(type)         \
 	struct {                               \
@@ -47,6 +49,11 @@ struct dcn35_dpp_mask {
 	DPP_REG_FIELD_LIST_DCN35(uint32_t);
 };
 
+void dpp35_dppclk_control(
+		struct dpp *dpp_base,
+		bool dppclk_div,
+		bool enable);
+
 bool dpp35_construct(struct dcn3_dpp *dpp3, struct dc_context *ctx,
 		     uint32_t inst, const struct dcn3_dpp_registers *tf_regs,
 		     const struct dcn35_dpp_shift *tf_shift,

drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c

@@ -495,6 +495,17 @@ void dcn35_dpp_root_clock_control(struct dce_hwseq *hws, unsigned int dpp_inst,
 	}
 }
 
+void dcn35_dpstream_root_clock_control(struct dce_hwseq *hws, unsigned int dp_hpo_inst, bool clock_on)
+{
+	if (!hws->ctx->dc->debug.root_clock_optimization.bits.dpstream)
+		return;
+
+	if (hws->ctx->dc->res_pool->dccg->funcs->set_dpstreamclk_root_clock_gating) {
+		hws->ctx->dc->res_pool->dccg->funcs->set_dpstreamclk_root_clock_gating(
+			hws->ctx->dc->res_pool->dccg, dp_hpo_inst, clock_on);
+	}
+}
+
 void dcn35_dsc_pg_control(
 		struct dce_hwseq *hws,
 		unsigned int dsc_inst,
@@ -1002,6 +1013,9 @@ void dcn35_calc_blocks_to_gate(struct dc *dc, struct dc_state *context,
 
 		if (pipe_ctx->stream_res.opp)
 			update_state->pg_pipe_res_update[PG_OPP][pipe_ctx->stream_res.opp->inst] = false;
+
+		if (pipe_ctx->stream_res.hpo_dp_stream_enc)
+			update_state->pg_pipe_res_update[PG_DPSTREAM][pipe_ctx->stream_res.hpo_dp_stream_enc->inst] = false;
 	}
 	/*domain24 controls all the otg, mpc, opp, as long as one otg is still up, avoid enabling OTG PG*/
 	for (i = 0; i < dc->res_pool->timing_generator_count; i++) {
@@ -1059,6 +1073,9 @@ void dcn35_calc_blocks_to_ungate(struct dc *dc, struct dc_state *context,
 
 				if (j == PG_OPTC && new_pipe->stream_res.tg)
 					update_state->pg_pipe_res_update[j][new_pipe->stream_res.tg->inst] = true;
+
+				if (j == PG_DPSTREAM && new_pipe->stream_res.hpo_dp_stream_enc)
+					update_state->pg_pipe_res_update[j][new_pipe->stream_res.hpo_dp_stream_enc->inst] = true;
 			}
 		} else if (cur_pipe->plane_state == new_pipe->plane_state ||
 				cur_pipe == new_pipe) {
@@ -1088,6 +1105,11 @@ void dcn35_calc_blocks_to_ungate(struct dc *dc, struct dc_state *context,
 					cur_pipe->stream_res.tg != new_pipe->stream_res.tg &&
 					new_pipe->stream_res.tg)
 					update_state->pg_pipe_res_update[j][new_pipe->stream_res.tg->inst] = true;
+
+				if (j == PG_DPSTREAM &&
+					cur_pipe->stream_res.hpo_dp_stream_enc != new_pipe->stream_res.hpo_dp_stream_enc &&
+					new_pipe->stream_res.hpo_dp_stream_enc)
+					update_state->pg_pipe_res_update[j][new_pipe->stream_res.hpo_dp_stream_enc->inst] = true;
 			}
 		}
 	}
@@ -1234,6 +1256,9 @@ void dcn35_root_clock_control(struct dc *dc,
 				if (dc->hwseq->funcs.dpp_root_clock_control)
 					dc->hwseq->funcs.dpp_root_clock_control(dc->hwseq, i, power_on);
 			}
+			if (update_state->pg_pipe_res_update[PG_DPSTREAM][i])
+				if (dc->hwseq->funcs.dpstream_root_clock_control)
+					dc->hwseq->funcs.dpstream_root_clock_control(dc->hwseq, i, power_on);
 		}
 	for (i = 0; i < dc->res_pool->res_cap->num_dsc; i++) {
 		if (update_state->pg_pipe_res_update[PG_DSC][i]) {
@@ -1254,6 +1279,9 @@ void dcn35_root_clock_control(struct dc *dc,
 				if (dc->hwseq->funcs.dpp_root_clock_control)
 					dc->hwseq->funcs.dpp_root_clock_control(dc->hwseq, i, power_on);
 			}
+			if (update_state->pg_pipe_res_update[PG_DPSTREAM][i])
+				if (dc->hwseq->funcs.dpstream_root_clock_control)
+					dc->hwseq->funcs.dpstream_root_clock_control(dc->hwseq, i, power_on);
 		}
 }
 

drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.h

@@ -37,6 +37,8 @@ void dcn35_dsc_pg_control(struct dce_hwseq *hws, unsigned int dsc_inst, bool pow
 
 void dcn35_dpp_root_clock_control(struct dce_hwseq *hws, unsigned int dpp_inst, bool clock_on);
 
+void dcn35_dpstream_root_clock_control(struct dce_hwseq *hws, unsigned int dp_hpo_inst, bool clock_on);
+
 void dcn35_enable_power_gating_plane(struct dce_hwseq *hws, bool enable);
 
 void dcn35_set_dmu_fgcg(struct dce_hwseq *hws, bool enable);

drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_init.c

@@ -147,6 +147,7 @@ static const struct hwseq_private_funcs dcn35_private_funcs = {
 	//.hubp_pg_control = dcn35_hubp_pg_control,
 	.enable_power_gating_plane = dcn35_enable_power_gating_plane,
 	.dpp_root_clock_control = dcn35_dpp_root_clock_control,
+	.dpstream_root_clock_control = dcn35_dpstream_root_clock_control,
 	.program_all_writeback_pipes_in_tree = dcn30_program_all_writeback_pipes_in_tree,
 	.update_odm = dcn35_update_odm,
 	.set_hdr_multiplier = dcn10_set_hdr_multiplier,

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

@@ -120,6 +120,10 @@ struct hwseq_private_funcs {
 			struct dce_hwseq *hws,
 			unsigned int dpp_inst,
 			bool clock_on);
+	void (*dpstream_root_clock_control)(
+			struct dce_hwseq *hws,
+			unsigned int dpp_inst,
+			bool clock_on);
 	void (*dpp_pg_control)(struct dce_hwseq *hws,
 			unsigned int dpp_inst,
 			bool power_on);

drivers/gpu/drm/amd/display/dc/inc/hw/dccg.h

@@ -106,6 +106,10 @@ struct dccg_funcs {
 	void (*otg_drop_pixel)(struct dccg *dccg,
 			uint32_t otg_inst);
 	void (*dccg_init)(struct dccg *dccg);
+	void (*set_dpstreamclk_root_clock_gating)(
+			struct dccg *dccg,
+			int dp_hpo_inst,
+			bool enable);
 
 	void (*set_dpstreamclk)(
 			struct dccg *dccg,