drm/amd/display: Modify power sequence

Need to update the power sequence to help prevent potential issues
like multi-display or multi-plane.
Reviewed-by: Duncan Ma <duncan.ma@amd.com>
Acked-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Signed-off-by: Sung Joon Kim <sungjoon.kim@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/hwss/Makefile

@@ -180,7 +180,7 @@ AMD_DISPLAY_FILES += $(AMD_DAL_HWSS_DCN35)
 
 ###############################################################################
 
-HWSS_DCN351 = dcn351_init.o
+HWSS_DCN351 = dcn351_hwseq.o dcn351_init.o
 
 AMD_DAL_HWSS_DCN351 = $(addprefix $(AMDDALPATH)/dc/hwss/dcn351/,$(HWSS_DCN351))
 

drivers/gpu/drm/amd/display/dc/hwss/dcn351/Makefile

 #
-# (c) Copyright 2022 Advanced Micro Devices, Inc. All the rights reserved
+# Copyright (c) 2022-2024 Advanced Micro Devices, Inc.
 #
-#  All rights reserved.  This notice is intended as a precaution against
-#  inadvertent publication and does not imply publication or any waiver
-#  of confidentiality.  The year included in the foregoing notice is the
-#  year of creation of the work.
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the "Software"),
+# to deal in the Software without restriction, including without limitation
+# the rights to use, copy, modify, merge, publish, distribute, sublicense,
+# and/or sell copies of the Software, and to permit persons to whom the
+# Software is furnished to do so, subject to the following conditions:
 #
-#  Authors: AMD
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+# THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+# OTHER DEALINGS IN THE SOFTWARE.
 #
 # Makefile for DCN351.
 
-DCN351 = dcn351_init.o
+DCN351 = dcn351_hwseq.o dcn351_init.o
 
 AMD_DAL_DCN351 = $(addprefix $(AMDDALPATH)/dc/dcn351/,$(DCN351))
 

drivers/gpu/drm/amd/display/dc/hwss/dcn351/dcn351_hwseq.c

+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright 2024 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "core_types.h"
+#include "resource.h"
+#include "dcn351_hwseq.h"
+#include "dcn35/dcn35_hwseq.h"
+
+#define DC_LOGGER_INIT(logger) \
+	struct dal_logger *dc_logger = logger
+
+#define DC_LOGGER \
+	dc_logger
+
+void dcn351_calc_blocks_to_gate(struct dc *dc, struct dc_state *context,
+	struct pg_block_update *update_state)
+{
+	int i, j;
+
+	dcn35_calc_blocks_to_gate(dc, context, update_state);
+
+	for (i = dc->res_pool->pipe_count - 1; i >= 0; i--) {
+		if (!update_state->pg_pipe_res_update[PG_HUBP][i] &&
+			!update_state->pg_pipe_res_update[PG_DPP][i]) {
+			for (j = i - 1; j >= 0; j--) {
+				update_state->pg_pipe_res_update[PG_HUBP][j] = false;
+				update_state->pg_pipe_res_update[PG_DPP][j] = false;
+			}
+
+			break;
+		}
+	}
+}
+
+void dcn351_calc_blocks_to_ungate(struct dc *dc, struct dc_state *context,
+	struct pg_block_update *update_state)
+{
+	int i, j;
+
+	dcn35_calc_blocks_to_ungate(dc, context, update_state);
+
+	for (i = dc->res_pool->pipe_count - 1; i >= 0; i--) {
+		if (update_state->pg_pipe_res_update[PG_HUBP][i] &&
+			update_state->pg_pipe_res_update[PG_DPP][i]) {
+			for (j = i - 1; j >= 0; j--) {
+				update_state->pg_pipe_res_update[PG_HUBP][j] = true;
+				update_state->pg_pipe_res_update[PG_DPP][j] = true;
+			}
+
+			break;
+		}
+	}
+}
+
+/**
+ * dcn351_hw_block_power_down() - power down sequence
+ *
+ * The following sequence describes the ON-OFF (ONO) for power down:
+ *
+ *	ONO Region 11, DCPG 19: dsc3
+ *	ONO Region 10, DCPG 3: dchubp3, dpp3
+ *	ONO Region 9, DCPG 18: dsc2
+ *	ONO Region 8, DCPG 2: dchubp2, dpp2
+ *	ONO Region 7, DCPG 17: dsc1
+ *	ONO Region 6, DCPG 1: dchubp1, dpp1
+ *	ONO Region 5, DCPG 16: dsc0
+ *	ONO Region 4, DCPG 0: dchubp0, dpp0
+ *	ONO Region 3, DCPG 25: hpo - SKIPPED. Should be kept on
+ *	ONO Region 2, DCPG 24: mpc opp optc dwb
+ *	ONO Region 1, DCPG 23: dchubbub dchvm dchubbubmem - SKIPPED. PMFW will pwr dwn at IPS2 entry
+ *	ONO Region 0, DCPG 22: dccg dio dcio - SKIPPED. will be pwr dwn after lono timer is armed
+ *
+ * @dc: Current DC state
+ * @update_state: update PG sequence states for HW block
+ */
+void dcn351_hw_block_power_down(struct dc *dc,
+	struct pg_block_update *update_state)
+{
+	int i = 0;
+	struct pg_cntl *pg_cntl = dc->res_pool->pg_cntl;
+
+	if (!pg_cntl || dc->debug.ignore_pg)
+		return;
+
+	for (i = dc->res_pool->pipe_count - 1; i >= 0; i--) {
+		if (update_state->pg_pipe_res_update[PG_DSC][i]) {
+			if (pg_cntl->funcs->dsc_pg_control)
+				pg_cntl->funcs->dsc_pg_control(pg_cntl, i, false);
+		}
+
+		if (update_state->pg_pipe_res_update[PG_HUBP][i] &&
+			update_state->pg_pipe_res_update[PG_DPP][i]) {
+			if (pg_cntl->funcs->hubp_dpp_pg_control)
+				pg_cntl->funcs->hubp_dpp_pg_control(pg_cntl, i, false);
+		}
+	}
+
+	// domain25 currently always on.
+
+	/* this will need all the clients to unregister optc interrupts, let dmubfw handle this */
+	if (pg_cntl->funcs->plane_otg_pg_control)
+		pg_cntl->funcs->plane_otg_pg_control(pg_cntl, false);
+
+	// domain23 currently always on.
+	// domain22 currently always on.
+}
+
+/**
+ * dcn351_hw_block_power_up() - power up sequence
+ *
+ * The following sequence describes the ON-OFF (ONO) for power up:
+ *
+ *	ONO Region 0, DCPG 22: dccg dio dcio - SKIPPED
+ *	ONO Region 1, DCPG 23: dchubbub dchvm dchubbubmem - SKIPPED. PMFW will power up at IPS2 exit
+ *	ONO Region 2, DCPG 24: mpc opp optc dwb
+ *	ONO Region 3, DCPG 25: hpo - SKIPPED
+ *	ONO Region 4, DCPG 0: dchubp0, dpp0
+ *	ONO Region 5, DCPG 16: dsc0
+ *	ONO Region 6, DCPG 1: dchubp1, dpp1
+ *	ONO Region 7, DCPG 17: dsc1
+ *	ONO Region 8, DCPG 2: dchubp2, dpp2
+ *	ONO Region 9, DCPG 18: dsc2
+ *	ONO Region 10, DCPG 3: dchubp3, dpp3
+ *	ONO Region 11, DCPG 19: dsc3
+ *
+ * @dc: Current DC state
+ * @update_state: update PG sequence states for HW block
+ */
+void dcn351_hw_block_power_up(struct dc *dc,
+	struct pg_block_update *update_state)
+{
+	int i = 0;
+	struct pg_cntl *pg_cntl = dc->res_pool->pg_cntl;
+
+	if (!pg_cntl || dc->debug.ignore_pg)
+		return;
+
+	// domain22 currently always on.
+	// domain23 currently always on.
+
+	/* this will need all the clients to unregister optc interrupts, let dmubfw handle this */
+	if (pg_cntl->funcs->plane_otg_pg_control)
+		pg_cntl->funcs->plane_otg_pg_control(pg_cntl, true);
+
+	// domain25 currently always on.
+
+	for (i = 0; i < dc->res_pool->pipe_count; i++) {
+		if (update_state->pg_pipe_res_update[PG_HUBP][i] &&
+			update_state->pg_pipe_res_update[PG_DPP][i]) {
+			if (pg_cntl->funcs->hubp_dpp_pg_control)
+				pg_cntl->funcs->hubp_dpp_pg_control(pg_cntl, i, true);
+		}
+
+		if (update_state->pg_pipe_res_update[PG_DSC][i]) {
+			if (pg_cntl->funcs->dsc_pg_control)
+				pg_cntl->funcs->dsc_pg_control(pg_cntl, i, true);
+		}
+	}
+}

drivers/gpu/drm/amd/display/dc/hwss/dcn351/dcn351_hwseq.h

+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright 2024 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __DC_HWSS_DCN351_H__
+#define __DC_HWSS_DCN351_H__
+
+#include "hw_sequencer_private.h"
+
+void dcn351_calc_blocks_to_gate(struct dc *dc, struct dc_state *context,
+	struct pg_block_update *update_state);
+void dcn351_calc_blocks_to_ungate(struct dc *dc, struct dc_state *context,
+	struct pg_block_update *update_state);
+void dcn351_hw_block_power_up(struct dc *dc,
+	struct pg_block_update *update_state);
+void dcn351_hw_block_power_down(struct dc *dc,
+	struct pg_block_update *update_state);
+
+#endif /* __DC_HWSS_DCN351_H__ */

drivers/gpu/drm/amd/display/dc/hwss/dcn351/dcn351_init.c

@@ -32,6 +32,7 @@
 #include "dcn31/dcn31_hwseq.h"
 #include "dcn32/dcn32_hwseq.h"
 #include "dcn35/dcn35_hwseq.h"
+#include "dcn351/dcn351_hwseq.h"
 
 #include "dcn351_init.h"
 
@@ -115,10 +116,10 @@ static const struct hw_sequencer_funcs dcn351_funcs = {
 	.update_visual_confirm_color = dcn10_update_visual_confirm_color,
 	.apply_idle_power_optimizations = dcn35_apply_idle_power_optimizations,
 	.update_dsc_pg = dcn32_update_dsc_pg,
-	.calc_blocks_to_gate = dcn35_calc_blocks_to_gate,
-	.calc_blocks_to_ungate = dcn35_calc_blocks_to_ungate,
-	.hw_block_power_up = dcn35_hw_block_power_up,
-	.hw_block_power_down = dcn35_hw_block_power_down,
+	.calc_blocks_to_gate = dcn351_calc_blocks_to_gate,
+	.calc_blocks_to_ungate = dcn351_calc_blocks_to_ungate,
+	.hw_block_power_up = dcn351_hw_block_power_up,
+	.hw_block_power_down = dcn351_hw_block_power_down,
 	.root_clock_control = dcn35_root_clock_control,
 };