drm/amd/display: Add DCN35 HWSEQ

[Why & How]
Add HWSEQ handling for DCN35.
Signed-off-by: Qingqing Zhuo <Qingqing.Zhuo@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright 2023 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.
+ *
+ */
+
+#include "dm_services.h"
+#include "dm_helpers.h"
+#include "core_types.h"
+#include "resource.h"
+#include "dccg.h"
+#include "dce/dce_hwseq.h"
+#include "clk_mgr.h"
+#include "reg_helper.h"
+#include "abm.h"
+#include "clk_mgr.h"
+#include "hubp.h"
+#include "dchubbub.h"
+#include "timing_generator.h"
+#include "opp.h"
+#include "ipp.h"
+#include "mpc.h"
+#include "mcif_wb.h"
+#include "dc_dmub_srv.h"
+#include "dcn35_hwseq.h"
+#include "dcn35/dcn35_dccg.h"
+#include "link_hwss.h"
+#include "dpcd_defs.h"
+#include "dce/dmub_outbox.h"
+#include "link.h"
+#include "dcn10/dcn10_hw_sequencer.h"
+#include "inc/link_enc_cfg.h"
+#include "dcn30/dcn30_vpg.h"
+#include "dce/dce_i2c_hw.h"
+#include "dsc.h"
+#include "dcn20/dcn20_optc.h"
+#include "dcn30/dcn30_cm_common.h"
+#include "dcn31/dcn31_hwseq.h"
+#include "dcn20/dcn20_hwseq.h"
+
+#define DC_LOGGER_INIT(logger)
+
+#define CTX \
+	hws->ctx
+#define REG(reg)\
+	hws->regs->reg
+#define DC_LOGGER \
+		dc->ctx->logger
+
+
+#undef FN
+#define FN(reg_name, field_name) \
+	hws->shifts->field_name, hws->masks->field_name
+#if 0
+static void enable_memory_low_power(struct dc *dc)
+{
+	struct dce_hwseq *hws = dc->hwseq;
+	int i;
+
+	if (dc->debug.enable_mem_low_power.bits.dmcu) {
+		// Force ERAM to shutdown if DMCU is not enabled
+		if (dc->debug.disable_dmcu || dc->config.disable_dmcu) {
+			REG_UPDATE(DMU_MEM_PWR_CNTL, DMCU_ERAM_MEM_PWR_FORCE, 3);
+		}
+	}
+	/*dcn35 has default MEM_PWR enabled, make sure wake them up*/
+	// Set default OPTC memory power states
+	if (dc->debug.enable_mem_low_power.bits.optc) {
+		// Shutdown when unassigned and light sleep in VBLANK
+		REG_SET_2(ODM_MEM_PWR_CTRL3, 0, ODM_MEM_UNASSIGNED_PWR_MODE, 3, ODM_MEM_VBLANK_PWR_MODE, 1);
+	}
+
+	if (dc->debug.enable_mem_low_power.bits.vga) {
+		// Power down VGA memory
+		REG_UPDATE(MMHUBBUB_MEM_PWR_CNTL, VGA_MEM_PWR_FORCE, 1);
+	}
+
+	if (dc->debug.enable_mem_low_power.bits.mpc &&
+		dc->res_pool->mpc->funcs->set_mpc_mem_lp_mode)
+		dc->res_pool->mpc->funcs->set_mpc_mem_lp_mode(dc->res_pool->mpc);
+
+	if (dc->debug.enable_mem_low_power.bits.vpg && dc->res_pool->stream_enc[0]->vpg->funcs->vpg_powerdown) {
+		// Power down VPGs
+		for (i = 0; i < dc->res_pool->stream_enc_count; i++)
+			dc->res_pool->stream_enc[i]->vpg->funcs->vpg_powerdown(dc->res_pool->stream_enc[i]->vpg);
+#if defined(CONFIG_DRM_AMD_DC_DP2_0)
+		for (i = 0; i < dc->res_pool->hpo_dp_stream_enc_count; i++)
+			dc->res_pool->hpo_dp_stream_enc[i]->vpg->funcs->vpg_powerdown(dc->res_pool->hpo_dp_stream_enc[i]->vpg);
+#endif
+	}
+
+}
+#endif
+
+void dcn35_set_dmu_fgcg(struct dce_hwseq *hws, bool enable)
+{
+	REG_UPDATE_3(DMU_CLK_CNTL,
+		RBBMIF_FGCG_REP_DIS, !enable,
+		IHC_FGCG_REP_DIS, !enable,
+		LONO_FGCG_REP_DIS, !enable
+	);
+}
+
+void dcn35_setup_hpo_hw_control(const struct dce_hwseq *hws, bool enable)
+{
+	REG_UPDATE(HPO_TOP_HW_CONTROL, HPO_IO_EN, !!enable);
+}
+
+void dcn35_init_hw(struct dc *dc)
+{
+	struct abm **abms = dc->res_pool->multiple_abms;
+	struct dce_hwseq *hws = dc->hwseq;
+	struct dc_bios *dcb = dc->ctx->dc_bios;
+	struct resource_pool *res_pool = dc->res_pool;
+	uint32_t backlight = MAX_BACKLIGHT_LEVEL;
+	int i;
+
+	if (dc->clk_mgr && dc->clk_mgr->funcs->init_clocks)
+		dc->clk_mgr->funcs->init_clocks(dc->clk_mgr);
+
+	REG_WRITE(DCCG_GATE_DISABLE_CNTL, 0);
+	REG_WRITE(DCCG_GATE_DISABLE_CNTL2, 0x3F000000);
+	REG_WRITE(DCCG_GATE_DISABLE_CNTL5, 0x1f7c3fcf);
+
+	//dcn35_set_dmu_fgcg(hws, dc->debug.enable_fine_grain_clock_gating.bits.dmu);
+
+	if (!dcb->funcs->is_accelerated_mode(dcb)) {
+		/*this calls into dmubfw to do the init*/
+		hws->funcs.bios_golden_init(dc);
+	}
+	// Initialize the dccg
+	if (res_pool->dccg->funcs->dccg_init)
+		res_pool->dccg->funcs->dccg_init(res_pool->dccg);
+
+	//enable_memory_low_power(dc);
+
+	if (dc->ctx->dc_bios->fw_info_valid) {
+		res_pool->ref_clocks.xtalin_clock_inKhz =
+				dc->ctx->dc_bios->fw_info.pll_info.crystal_frequency;
+
+			if (res_pool->dccg && res_pool->hubbub) {
+
+				(res_pool->dccg->funcs->get_dccg_ref_freq)(res_pool->dccg,
+						dc->ctx->dc_bios->fw_info.pll_info.crystal_frequency,
+						&res_pool->ref_clocks.dccg_ref_clock_inKhz);
+
+				(res_pool->hubbub->funcs->get_dchub_ref_freq)(res_pool->hubbub,
+						res_pool->ref_clocks.dccg_ref_clock_inKhz,
+						&res_pool->ref_clocks.dchub_ref_clock_inKhz);
+			} else {
+				// Not all ASICs have DCCG sw component
+				res_pool->ref_clocks.dccg_ref_clock_inKhz =
+						res_pool->ref_clocks.xtalin_clock_inKhz;
+				res_pool->ref_clocks.dchub_ref_clock_inKhz =
+						res_pool->ref_clocks.xtalin_clock_inKhz;
+			}
+	} else
+		ASSERT_CRITICAL(false);
+
+	for (i = 0; i < dc->link_count; i++) {
+		/* Power up AND update implementation according to the
+		 * required signal (which may be different from the
+		 * default signal on connector).
+		 */
+		struct dc_link *link = dc->links[i];
+
+		if (link->ep_type != DISPLAY_ENDPOINT_PHY)
+			continue;
+
+		link->link_enc->funcs->hw_init(link->link_enc);
+
+		/* Check for enabled DIG to identify enabled display */
+		if (link->link_enc->funcs->is_dig_enabled &&
+			link->link_enc->funcs->is_dig_enabled(link->link_enc)) {
+			link->link_status.link_active = true;
+			if (link->link_enc->funcs->fec_is_active &&
+					link->link_enc->funcs->fec_is_active(link->link_enc))
+				link->fec_state = dc_link_fec_enabled;
+		}
+	}
+
+	/* we want to turn off all dp displays before doing detection */
+	dc->link_srv->blank_all_dp_displays(dc);
+/*
+	if (hws->funcs.enable_power_gating_plane)
+		hws->funcs.enable_power_gating_plane(dc->hwseq, true);
+*/
+	if (res_pool->hubbub->funcs->dchubbub_init)
+		res_pool->hubbub->funcs->dchubbub_init(dc->res_pool->hubbub);
+	/* If taking control over from VBIOS, we may want to optimize our first
+	 * mode set, so we need to skip powering down pipes until we know which
+	 * pipes we want to use.
+	 * Otherwise, if taking control is not possible, we need to power
+	 * everything down.
+	 */
+	if (dcb->funcs->is_accelerated_mode(dcb) || !dc->config.seamless_boot_edp_requested) {
+
+		// we want to turn off edp displays if odm is enabled and no seamless boot
+		if (!dc->caps.seamless_odm) {
+			for (i = 0; i < dc->res_pool->timing_generator_count; i++) {
+				struct timing_generator *tg = dc->res_pool->timing_generators[i];
+				uint32_t num_opps, opp_id_src0, opp_id_src1;
+
+				num_opps = 1;
+				if (tg) {
+					if (tg->funcs->is_tg_enabled(tg) && tg->funcs->get_optc_source) {
+						tg->funcs->get_optc_source(tg, &num_opps,
+								&opp_id_src0, &opp_id_src1);
+					}
+				}
+
+				if (num_opps > 1) {
+					dc->link_srv->blank_all_edp_displays(dc);
+					break;
+				}
+			}
+		}
+
+		hws->funcs.init_pipes(dc, dc->current_state);
+		if (dc->res_pool->hubbub->funcs->allow_self_refresh_control)
+			dc->res_pool->hubbub->funcs->allow_self_refresh_control(dc->res_pool->hubbub,
+					!dc->res_pool->hubbub->ctx->dc->debug.disable_stutter);
+	}
+
+	for (i = 0; i < res_pool->audio_count; i++) {
+		struct audio *audio = res_pool->audios[i];
+
+		audio->funcs->hw_init(audio);
+	}
+
+	for (i = 0; i < dc->link_count; i++) {
+		struct dc_link *link = dc->links[i];
+
+		if (link->panel_cntl)
+			backlight = link->panel_cntl->funcs->hw_init(link->panel_cntl);
+	}
+	if (dc->ctx->dmub_srv) {
+	for (i = 0; i < dc->res_pool->pipe_count; i++) {
+		if (abms[i] != NULL && abms[i]->funcs != NULL)
+			abms[i]->funcs->abm_init(abms[i], backlight);
+		}
+	}
+
+	/* power AFMT HDMI memory TODO: may move to dis/en output save power*/
+	REG_WRITE(DIO_MEM_PWR_CTRL, 0);
+
+	// Set i2c to light sleep until engine is setup
+	if (dc->debug.enable_mem_low_power.bits.i2c)
+		REG_UPDATE(DIO_MEM_PWR_CTRL, I2C_LIGHT_SLEEP_FORCE, 0);
+
+	if (hws->funcs.setup_hpo_hw_control)
+		hws->funcs.setup_hpo_hw_control(hws, false);
+
+	if (!dc->debug.disable_clock_gate) {
+		/* enable all DCN clock gating */
+		REG_WRITE(DCCG_GATE_DISABLE_CNTL, 0);
+		REG_WRITE(DCCG_GATE_DISABLE_CNTL2, 0);
+		REG_UPDATE(DCFCLK_CNTL, DCFCLK_GATE_DIS, 0);
+	}
+
+	if (dc->debug.disable_mem_low_power) {
+		REG_UPDATE(DC_MEM_GLOBAL_PWR_REQ_CNTL, DC_MEM_GLOBAL_PWR_REQ_DIS, 1);
+	}
+	if (!dcb->funcs->is_accelerated_mode(dcb) && dc->res_pool->hubbub->funcs->init_watermarks)
+		dc->res_pool->hubbub->funcs->init_watermarks(dc->res_pool->hubbub);
+
+	if (dc->clk_mgr->funcs->notify_wm_ranges)
+		dc->clk_mgr->funcs->notify_wm_ranges(dc->clk_mgr);
+
+	if (dc->clk_mgr->funcs->set_hard_max_memclk && !dc->clk_mgr->dc_mode_softmax_enabled)
+		dc->clk_mgr->funcs->set_hard_max_memclk(dc->clk_mgr);
+
+
+
+	if (dc->res_pool->hubbub->funcs->force_pstate_change_control)
+		dc->res_pool->hubbub->funcs->force_pstate_change_control(
+				dc->res_pool->hubbub, false, false);
+
+	if (dc->res_pool->hubbub->funcs->init_crb)
+		dc->res_pool->hubbub->funcs->init_crb(dc->res_pool->hubbub);
+
+	if (dc->res_pool->hubbub->funcs->set_request_limit && dc->config.sdpif_request_limit_words_per_umc > 0)
+		dc->res_pool->hubbub->funcs->set_request_limit(dc->res_pool->hubbub, dc->ctx->dc_bios->vram_info.num_chans, dc->config.sdpif_request_limit_words_per_umc);
+	// Get DMCUB capabilities
+	if (dc->ctx->dmub_srv) {
+		dc_dmub_srv_query_caps_cmd(dc->ctx->dmub_srv);
+		dc->caps.dmub_caps.psr = dc->ctx->dmub_srv->dmub->feature_caps.psr;
+		dc->caps.dmub_caps.mclk_sw = dc->ctx->dmub_srv->dmub->feature_caps.fw_assisted_mclk_switch;
+	}
+
+	if (dc->res_pool->pg_cntl) {
+		if (dc->res_pool->pg_cntl->funcs->init_pg_status)
+			dc->res_pool->pg_cntl->funcs->init_pg_status(dc->res_pool->pg_cntl);
+	}
+}
+
+static int calc_mpc_flow_ctrl_cnt(const struct dc_stream_state *stream,
+		int opp_cnt)
+{
+	bool hblank_halved = optc2_is_two_pixels_per_containter(&stream->timing);
+	int flow_ctrl_cnt;
+
+	if (opp_cnt >= 2)
+		hblank_halved = true;
+
+	flow_ctrl_cnt = stream->timing.h_total - stream->timing.h_addressable -
+			stream->timing.h_border_left -
+			stream->timing.h_border_right;
+
+	if (hblank_halved)
+		flow_ctrl_cnt /= 2;
+
+	/* ODM combine 4:1 case */
+	if (opp_cnt == 4)
+		flow_ctrl_cnt /= 2;
+
+	return flow_ctrl_cnt;
+}
+
+static void update_dsc_on_stream(struct pipe_ctx *pipe_ctx, bool enable)
+{
+	struct display_stream_compressor *dsc = pipe_ctx->stream_res.dsc;
+	struct dc_stream_state *stream = pipe_ctx->stream;
+	struct pipe_ctx *odm_pipe;
+	int opp_cnt = 1;
+
+	ASSERT(dsc);
+	for (odm_pipe = pipe_ctx->next_odm_pipe; odm_pipe; odm_pipe = odm_pipe->next_odm_pipe)
+		opp_cnt++;
+
+	if (enable) {
+		struct dsc_config dsc_cfg;
+		struct dsc_optc_config dsc_optc_cfg;
+		enum optc_dsc_mode optc_dsc_mode;
+
+		/* Enable DSC hw block */
+		dsc_cfg.pic_width = (stream->timing.h_addressable + stream->timing.h_border_left + stream->timing.h_border_right) / opp_cnt;
+		dsc_cfg.pic_height = stream->timing.v_addressable + stream->timing.v_border_top + stream->timing.v_border_bottom;
+		dsc_cfg.pixel_encoding = stream->timing.pixel_encoding;
+		dsc_cfg.color_depth = stream->timing.display_color_depth;
+		dsc_cfg.is_odm = pipe_ctx->next_odm_pipe ? true : false;
+		dsc_cfg.dc_dsc_cfg = stream->timing.dsc_cfg;
+		ASSERT(dsc_cfg.dc_dsc_cfg.num_slices_h % opp_cnt == 0);
+		dsc_cfg.dc_dsc_cfg.num_slices_h /= opp_cnt;
+
+		dsc->funcs->dsc_set_config(dsc, &dsc_cfg, &dsc_optc_cfg);
+		dsc->funcs->dsc_enable(dsc, pipe_ctx->stream_res.opp->inst);
+		for (odm_pipe = pipe_ctx->next_odm_pipe; odm_pipe; odm_pipe = odm_pipe->next_odm_pipe) {
+			struct display_stream_compressor *odm_dsc = odm_pipe->stream_res.dsc;
+
+			ASSERT(odm_dsc);
+			odm_dsc->funcs->dsc_set_config(odm_dsc, &dsc_cfg, &dsc_optc_cfg);
+			odm_dsc->funcs->dsc_enable(odm_dsc, odm_pipe->stream_res.opp->inst);
+		}
+		dsc_cfg.dc_dsc_cfg.num_slices_h *= opp_cnt;
+		dsc_cfg.pic_width *= opp_cnt;
+
+		optc_dsc_mode = dsc_optc_cfg.is_pixel_format_444 ? OPTC_DSC_ENABLED_444 : OPTC_DSC_ENABLED_NATIVE_SUBSAMPLED;
+
+		/* Enable DSC in OPTC */
+		DC_LOG_DSC("Setting optc DSC config for tg instance %d:", pipe_ctx->stream_res.tg->inst);
+		pipe_ctx->stream_res.tg->funcs->set_dsc_config(pipe_ctx->stream_res.tg,
+							optc_dsc_mode,
+							dsc_optc_cfg.bytes_per_pixel,
+							dsc_optc_cfg.slice_width);
+	} else {
+		/* disable DSC in OPTC */
+		pipe_ctx->stream_res.tg->funcs->set_dsc_config(
+				pipe_ctx->stream_res.tg,
+				OPTC_DSC_DISABLED, 0, 0);
+
+		/* disable DSC block */
+		dsc->funcs->dsc_disable(pipe_ctx->stream_res.dsc);
+		for (odm_pipe = pipe_ctx->next_odm_pipe; odm_pipe; odm_pipe = odm_pipe->next_odm_pipe) {
+			ASSERT(odm_pipe->stream_res.dsc);
+			odm_pipe->stream_res.dsc->funcs->dsc_disable(odm_pipe->stream_res.dsc);
+		}
+	}
+}
+
+// Given any pipe_ctx, return the total ODM combine factor, and optionally return
+// the OPPids which are used
+static unsigned int get_odm_config(struct pipe_ctx *pipe_ctx, unsigned int *opp_instances)
+{
+	unsigned int opp_count = 1;
+	struct pipe_ctx *odm_pipe;
+
+	// First get to the top pipe
+	for (odm_pipe = pipe_ctx; odm_pipe->prev_odm_pipe; odm_pipe = odm_pipe->prev_odm_pipe)
+		;
+
+	// First pipe is always used
+	if (opp_instances)
+		opp_instances[0] = odm_pipe->stream_res.opp->inst;
+
+	// Find and count odm pipes, if any
+	for (odm_pipe = odm_pipe->next_odm_pipe; odm_pipe; odm_pipe = odm_pipe->next_odm_pipe) {
+		if (opp_instances)
+			opp_instances[opp_count] = odm_pipe->stream_res.opp->inst;
+		opp_count++;
+	}
+
+	return opp_count;
+}
+
+void dcn35_update_odm(struct dc *dc, struct dc_state *context, struct pipe_ctx *pipe_ctx)
+{
+	struct pipe_ctx *odm_pipe;
+	int opp_cnt = 0;
+	int opp_inst[MAX_PIPES] = {0};
+	bool rate_control_2x_pclk = (pipe_ctx->stream->timing.flags.INTERLACE || optc2_is_two_pixels_per_containter(&pipe_ctx->stream->timing));
+	struct mpc_dwb_flow_control flow_control;
+	struct mpc *mpc = dc->res_pool->mpc;
+	int i;
+
+	opp_cnt = get_odm_config(pipe_ctx, opp_inst);
+
+	if (opp_cnt > 1)
+		pipe_ctx->stream_res.tg->funcs->set_odm_combine(
+				pipe_ctx->stream_res.tg,
+				opp_inst, opp_cnt,
+				&pipe_ctx->stream->timing);
+	else
+		pipe_ctx->stream_res.tg->funcs->set_odm_bypass(
+				pipe_ctx->stream_res.tg, &pipe_ctx->stream->timing);
+
+	rate_control_2x_pclk = rate_control_2x_pclk || opp_cnt > 1;
+	flow_control.flow_ctrl_mode = 0;
+	flow_control.flow_ctrl_cnt0 = 0x80;
+	flow_control.flow_ctrl_cnt1 = calc_mpc_flow_ctrl_cnt(pipe_ctx->stream, opp_cnt);
+	if (mpc->funcs->set_out_rate_control) {
+		for (i = 0; i < opp_cnt; ++i) {
+			mpc->funcs->set_out_rate_control(
+					mpc, opp_inst[i],
+					true,
+					rate_control_2x_pclk,
+					&flow_control);
+		}
+	}
+
+	for (odm_pipe = pipe_ctx->next_odm_pipe; odm_pipe; odm_pipe = odm_pipe->next_odm_pipe) {
+		odm_pipe->stream_res.opp->funcs->opp_pipe_clock_control(
+				odm_pipe->stream_res.opp,
+				true);
+	}
+
+	if (pipe_ctx->stream_res.dsc) {
+		struct pipe_ctx *current_pipe_ctx = &dc->current_state->res_ctx.pipe_ctx[pipe_ctx->pipe_idx];
+
+		update_dsc_on_stream(pipe_ctx, pipe_ctx->stream->timing.flags.DSC);
+
+		/* Check if no longer using pipe for ODM, then need to disconnect DSC for that pipe */
+		if (!pipe_ctx->next_odm_pipe && current_pipe_ctx->next_odm_pipe &&
+				current_pipe_ctx->next_odm_pipe->stream_res.dsc) {
+			struct display_stream_compressor *dsc = current_pipe_ctx->next_odm_pipe->stream_res.dsc;
+			/* disconnect DSC block from stream */
+			dsc->funcs->dsc_disconnect(dsc);
+		}
+	}
+}
+
+void dcn35_dpp_root_clock_control(struct dce_hwseq *hws, unsigned int dpp_inst, bool clock_on)
+{
+	if (!hws->ctx->dc->debug.root_clock_optimization.bits.dpp)
+		return;
+
+	if (hws->ctx->dc->res_pool->dccg->funcs->dpp_root_clock_control) {
+		hws->ctx->dc->res_pool->dccg->funcs->dpp_root_clock_control(
+			hws->ctx->dc->res_pool->dccg, dpp_inst, clock_on);
+	}
+}
+
+void dcn35_dsc_pg_control(
+		struct dce_hwseq *hws,
+		unsigned int dsc_inst,
+		bool power_on)
+{
+	uint32_t power_gate = power_on ? 0 : 1;
+	uint32_t pwr_status = power_on ? 0 : 2;
+	uint32_t org_ip_request_cntl = 0;
+
+	if (hws->ctx->dc->debug.disable_dsc_power_gate)
+		return;
+	if (hws->ctx->dc->debug.ignore_pg)
+		return;
+	REG_GET(DC_IP_REQUEST_CNTL, IP_REQUEST_EN, &org_ip_request_cntl);
+	if (org_ip_request_cntl == 0)
+		REG_SET(DC_IP_REQUEST_CNTL, 0, IP_REQUEST_EN, 1);
+
+	switch (dsc_inst) {
+	case 0: /* DSC0 */
+		REG_UPDATE(DOMAIN16_PG_CONFIG,
+				DOMAIN_POWER_GATE, power_gate);
+
+		REG_WAIT(DOMAIN16_PG_STATUS,
+				DOMAIN_PGFSM_PWR_STATUS, pwr_status,
+				1, 1000);
+		break;
+	case 1: /* DSC1 */
+		REG_UPDATE(DOMAIN17_PG_CONFIG,
+				DOMAIN_POWER_GATE, power_gate);
+
+		REG_WAIT(DOMAIN17_PG_STATUS,
+				DOMAIN_PGFSM_PWR_STATUS, pwr_status,
+				1, 1000);
+		break;
+	case 2: /* DSC2 */
+		REG_UPDATE(DOMAIN18_PG_CONFIG,
+				DOMAIN_POWER_GATE, power_gate);
+
+		REG_WAIT(DOMAIN18_PG_STATUS,
+				DOMAIN_PGFSM_PWR_STATUS, pwr_status,
+				1, 1000);
+		break;
+	case 3: /* DSC3 */
+		REG_UPDATE(DOMAIN19_PG_CONFIG,
+				DOMAIN_POWER_GATE, power_gate);
+
+		REG_WAIT(DOMAIN19_PG_STATUS,
+				DOMAIN_PGFSM_PWR_STATUS, pwr_status,
+				1, 1000);
+		break;
+	default:
+		BREAK_TO_DEBUGGER();
+		break;
+	}
+
+	if (org_ip_request_cntl == 0)
+		REG_SET(DC_IP_REQUEST_CNTL, 0, IP_REQUEST_EN, 0);
+}
+
+void dcn35_enable_power_gating_plane(struct dce_hwseq *hws, bool enable)
+{
+	bool force_on = true; /* disable power gating */
+	uint32_t org_ip_request_cntl = 0;
+
+	if (hws->ctx->dc->debug.disable_hubp_power_gate)
+		return;
+	if (hws->ctx->dc->debug.ignore_pg)
+		return;
+	REG_GET(DC_IP_REQUEST_CNTL, IP_REQUEST_EN, &org_ip_request_cntl);
+	if (org_ip_request_cntl == 0)
+		REG_SET(DC_IP_REQUEST_CNTL, 0, IP_REQUEST_EN, 1);
+	/* DCHUBP0/1/2/3/4/5 */
+	REG_UPDATE(DOMAIN0_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
+	REG_UPDATE(DOMAIN2_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
+	/* DPP0/1/2/3/4/5 */
+	REG_UPDATE(DOMAIN1_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
+	REG_UPDATE(DOMAIN3_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
+
+	force_on = true; /* disable power gating */
+	if (enable && !hws->ctx->dc->debug.disable_dsc_power_gate)
+		force_on = false;
+
+	/* DCS0/1/2/3/4 */
+	REG_UPDATE(DOMAIN16_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
+	REG_UPDATE(DOMAIN17_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
+	REG_UPDATE(DOMAIN18_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
+	REG_UPDATE(DOMAIN19_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
+
+
+}
+
+/* In headless boot cases, DIG may be turned
+ * on which causes HW/SW discrepancies.
+ * To avoid this, power down hardware on boot
+ * if DIG is turned on
+ */
+void dcn35_power_down_on_boot(struct dc *dc)
+{
+	struct dc_link *edp_links[MAX_NUM_EDP];
+	struct dc_link *edp_link = NULL;
+	int edp_num;
+	int i = 0;
+
+	dc_get_edp_links(dc, edp_links, &edp_num);
+	if (edp_num)
+		edp_link = edp_links[0];
+
+	if (edp_link && edp_link->link_enc->funcs->is_dig_enabled &&
+			edp_link->link_enc->funcs->is_dig_enabled(edp_link->link_enc) &&
+			dc->hwseq->funcs.edp_backlight_control &&
+			dc->hwss.power_down &&
+			dc->hwss.edp_power_control) {
+		dc->hwseq->funcs.edp_backlight_control(edp_link, false);
+		dc->hwss.power_down(dc);
+		dc->hwss.edp_power_control(edp_link, false);
+	} else {
+		for (i = 0; i < dc->link_count; i++) {
+			struct dc_link *link = dc->links[i];
+
+			if (link->link_enc && link->link_enc->funcs->is_dig_enabled &&
+					link->link_enc->funcs->is_dig_enabled(link->link_enc) &&
+					dc->hwss.power_down) {
+				dc->hwss.power_down(dc);
+				break;
+			}
+
+		}
+	}
+
+	/*
+	 * Call update_clocks with empty context
+	 * to send DISPLAY_OFF
+	 * Otherwise DISPLAY_OFF may not be asserted
+	 */
+	if (dc->clk_mgr->funcs->set_low_power_state)
+		dc->clk_mgr->funcs->set_low_power_state(dc->clk_mgr);
+
+	if (dc->clk_mgr->clks.pwr_state == DCN_PWR_STATE_LOW_POWER) {
+		if (!dc->idle_optimizations_allowed) {
+			dc_dmub_srv_notify_idle(dc, true);
+			dc->idle_optimizations_allowed = true;
+		}
+	}
+}
+
+bool dcn35_apply_idle_power_optimizations(struct dc *dc, bool enable)
+{
+	struct dc_link *edp_links[MAX_NUM_EDP];
+	int edp_num;
+	if (dc->debug.dmcub_emulation)
+		return true;
+
+	if (enable) {
+		dc_get_edp_links(dc, edp_links, &edp_num);
+		if (edp_num == 0 || edp_num > 1)
+			return false;
+	}
+
+	// TODO: review other cases when idle optimization is allowed
+
+	if (!enable) {
+		// Tell PMFW to exit low power state
+		if (dc->clk_mgr->funcs->exit_low_power_state)
+			dc->clk_mgr->funcs->exit_low_power_state(dc->clk_mgr);
+	}
+
+	dc_dmub_srv_notify_idle(dc, enable);
+
+	if (!enable)
+		dc_dmub_srv_is_hw_pwr_up(dc->ctx->dmub_srv, true);
+
+	return true;
+}
+
+void dcn35_z10_restore(const struct dc *dc)
+{
+	if (dc->debug.disable_z10)
+		return;
+
+	dc_dmub_srv_exit_low_power_state(dc);
+
+	dcn31_z10_restore(dc);
+}
+
+void dcn35_init_pipes(struct dc *dc, struct dc_state *context)
+{
+	int i;
+	struct dce_hwseq *hws = dc->hwseq;
+	struct hubbub *hubbub = dc->res_pool->hubbub;
+	struct pg_cntl *pg_cntl = dc->res_pool->pg_cntl;
+	bool can_apply_seamless_boot = false;
+
+	for (i = 0; i < context->stream_count; i++) {
+		if (context->streams[i]->apply_seamless_boot_optimization) {
+			can_apply_seamless_boot = true;
+			break;
+		}
+	}
+
+	for (i = 0; i < dc->res_pool->pipe_count; i++) {
+		struct timing_generator *tg = dc->res_pool->timing_generators[i];
+		struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i];
+
+		/* There is assumption that pipe_ctx is not mapping irregularly
+		 * to non-preferred front end. If pipe_ctx->stream is not NULL,
+		 * we will use the pipe, so don't disable
+		 */
+		if (pipe_ctx->stream != NULL && can_apply_seamless_boot)
+			continue;
+
+		/* Blank controller using driver code instead of
+		 * command table.
+		 */
+		if (tg->funcs->is_tg_enabled(tg)) {
+			if (hws->funcs.init_blank != NULL) {
+				hws->funcs.init_blank(dc, tg);
+				tg->funcs->lock(tg);
+			} else {
+				tg->funcs->lock(tg);
+				tg->funcs->set_blank(tg, true);
+				hwss_wait_for_blank_complete(tg);
+			}
+		}
+	}
+
+	/* Reset det size */
+	for (i = 0; i < dc->res_pool->pipe_count; i++) {
+		struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i];
+		struct hubp *hubp = dc->res_pool->hubps[i];
+
+		/* Do not need to reset for seamless boot */
+		if (pipe_ctx->stream != NULL && can_apply_seamless_boot)
+			continue;
+
+		if (hubbub && hubp) {
+			if (hubbub->funcs->program_det_size)
+				hubbub->funcs->program_det_size(hubbub, hubp->inst, 0);
+		}
+	}
+
+	/* num_opp will be equal to number of mpcc */
+	for (i = 0; i < dc->res_pool->res_cap->num_opp; i++) {
+		struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i];
+
+		/* Cannot reset the MPC mux if seamless boot */
+		if (pipe_ctx->stream != NULL && can_apply_seamless_boot)
+			continue;
+
+		dc->res_pool->mpc->funcs->mpc_init_single_inst(
+				dc->res_pool->mpc, i);
+	}
+
+	for (i = 0; i < dc->res_pool->pipe_count; i++) {
+		struct timing_generator *tg = dc->res_pool->timing_generators[i];
+		struct hubp *hubp = dc->res_pool->hubps[i];
+		struct dpp *dpp = dc->res_pool->dpps[i];
+		struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i];
+
+		/* There is assumption that pipe_ctx is not mapping irregularly
+		 * to non-preferred front end. If pipe_ctx->stream is not NULL,
+		 * we will use the pipe, so don't disable
+		 */
+		if (can_apply_seamless_boot &&
+			pipe_ctx->stream != NULL &&
+			pipe_ctx->stream_res.tg->funcs->is_tg_enabled(
+				pipe_ctx->stream_res.tg)) {
+			// Enable double buffering for OTG_BLANK no matter if
+			// seamless boot is enabled or not to suppress global sync
+			// signals when OTG blanked. This is to prevent pipe from
+			// requesting data while in PSR.
+			tg->funcs->tg_init(tg);
+			hubp->power_gated = true;
+			continue;
+		}
+
+		/* Disable on the current state so the new one isn't cleared. */
+		pipe_ctx = &dc->current_state->res_ctx.pipe_ctx[i];
+
+		dpp->funcs->dpp_reset(dpp);
+
+		pipe_ctx->stream_res.tg = tg;
+		pipe_ctx->pipe_idx = i;
+
+		pipe_ctx->plane_res.hubp = hubp;
+		pipe_ctx->plane_res.dpp = dpp;
+		pipe_ctx->plane_res.mpcc_inst = dpp->inst;
+		hubp->mpcc_id = dpp->inst;
+		hubp->opp_id = OPP_ID_INVALID;
+		hubp->power_gated = false;
+
+		dc->res_pool->opps[i]->mpc_tree_params.opp_id = dc->res_pool->opps[i]->inst;
+		dc->res_pool->opps[i]->mpc_tree_params.opp_list = NULL;
+		dc->res_pool->opps[i]->mpcc_disconnect_pending[pipe_ctx->plane_res.mpcc_inst] = true;
+		pipe_ctx->stream_res.opp = dc->res_pool->opps[i];
+
+		hws->funcs.plane_atomic_disconnect(dc, pipe_ctx);
+
+		if (tg->funcs->is_tg_enabled(tg))
+			tg->funcs->unlock(tg);
+
+		dc->hwss.disable_plane(dc, pipe_ctx);
+
+		pipe_ctx->stream_res.tg = NULL;
+		pipe_ctx->plane_res.hubp = NULL;
+
+		if (tg->funcs->is_tg_enabled(tg)) {
+			if (tg->funcs->init_odm)
+				tg->funcs->init_odm(tg);
+		}
+
+		tg->funcs->tg_init(tg);
+	}
+
+	if (pg_cntl != NULL) {
+		if (pg_cntl->funcs->dsc_pg_control != NULL) {
+			uint32_t num_opps = 0;
+			uint32_t opp_id_src0 = OPP_ID_INVALID;
+			uint32_t opp_id_src1 = OPP_ID_INVALID;
+
+			// Step 1: To find out which OPTC is running & OPTC DSC is ON
+			// We can't use res_pool->res_cap->num_timing_generator to check
+			// Because it records display pipes default setting built in driver,
+			// not display pipes of the current chip.
+			// Some ASICs would be fused display pipes less than the default setting.
+			// In dcnxx_resource_construct function, driver would obatin real information.
+			for (i = 0; i < dc->res_pool->timing_generator_count; i++) {
+				uint32_t optc_dsc_state = 0;
+				struct timing_generator *tg = dc->res_pool->timing_generators[i];
+
+				if (tg->funcs->is_tg_enabled(tg)) {
+					if (tg->funcs->get_dsc_status)
+						tg->funcs->get_dsc_status(tg, &optc_dsc_state);
+					// Only one OPTC with DSC is ON, so if we got one result,
+					// we would exit this block. non-zero value is DSC enabled
+					if (optc_dsc_state != 0) {
+						tg->funcs->get_optc_source(tg, &num_opps, &opp_id_src0, &opp_id_src1);
+						break;
+					}
+				}
+			}
+
+			// Step 2: To power down DSC but skip DSC  of running OPTC
+			for (i = 0; i < dc->res_pool->res_cap->num_dsc; i++) {
+				struct dcn_dsc_state s  = {0};
+
+				dc->res_pool->dscs[i]->funcs->dsc_read_state(dc->res_pool->dscs[i], &s);
+
+				if ((s.dsc_opp_source == opp_id_src0 || s.dsc_opp_source == opp_id_src1) &&
+					s.dsc_clock_en && s.dsc_fw_en)
+					continue;
+
+				pg_cntl->funcs->dsc_pg_control(pg_cntl, dc->res_pool->dscs[i]->inst, false);
+			}
+		}
+	}
+}
+
+void dcn35_enable_plane(struct dc *dc, struct pipe_ctx *pipe_ctx,
+			       struct dc_state *context)
+{
+	/* enable DCFCLK current DCHUB */
+	pipe_ctx->plane_res.hubp->funcs->hubp_clk_cntl(pipe_ctx->plane_res.hubp, true);
+
+	/* initialize HUBP on power up */
+	pipe_ctx->plane_res.hubp->funcs->hubp_init(pipe_ctx->plane_res.hubp);
+
+	/* make sure OPP_PIPE_CLOCK_EN = 1 */
+	pipe_ctx->stream_res.opp->funcs->opp_pipe_clock_control(
+			pipe_ctx->stream_res.opp,
+			true);
+	/*to do: insert PG here*/
+	if (dc->vm_pa_config.valid) {
+		struct vm_system_aperture_param apt;
+
+		apt.sys_default.quad_part = 0;
+
+		apt.sys_low.quad_part = dc->vm_pa_config.system_aperture.start_addr;
+		apt.sys_high.quad_part = dc->vm_pa_config.system_aperture.end_addr;
+
+		// Program system aperture settings
+		pipe_ctx->plane_res.hubp->funcs->hubp_set_vm_system_aperture_settings(pipe_ctx->plane_res.hubp, &apt);
+	}
+
+	if (!pipe_ctx->top_pipe
+		&& pipe_ctx->plane_state
+		&& pipe_ctx->plane_state->flip_int_enabled
+		&& pipe_ctx->plane_res.hubp->funcs->hubp_set_flip_int)
+		pipe_ctx->plane_res.hubp->funcs->hubp_set_flip_int(pipe_ctx->plane_res.hubp);
+}
+
+/* disable HW used by plane.
+ * note:  cannot disable until disconnect is complete
+ */
+void dcn35_plane_atomic_disable(struct dc *dc, struct pipe_ctx *pipe_ctx)
+{
+	struct hubp *hubp = pipe_ctx->plane_res.hubp;
+	struct dpp *dpp = pipe_ctx->plane_res.dpp;
+
+	dc->hwss.wait_for_mpcc_disconnect(dc, dc->res_pool, pipe_ctx);
+
+	/* In flip immediate with pipe splitting case GSL is used for
+	 * synchronization so we must disable it when the plane is disabled.
+	 */
+	if (pipe_ctx->stream_res.gsl_group != 0)
+		dcn20_setup_gsl_group_as_lock(dc, pipe_ctx, false);
+/*
+	if (hubp->funcs->hubp_update_mall_sel)
+		hubp->funcs->hubp_update_mall_sel(hubp, 0, false);
+*/
+	dc->hwss.set_flip_control_gsl(pipe_ctx, false);
+
+	hubp->funcs->hubp_clk_cntl(hubp, false);
+
+	dpp->funcs->dpp_dppclk_control(dpp, false, false);
+/*to do, need to support both case*/
+	hubp->power_gated = true;
+
+	dpp->funcs->dpp_reset(dpp);
+
+	pipe_ctx->stream = NULL;
+	memset(&pipe_ctx->stream_res, 0, sizeof(pipe_ctx->stream_res));
+	memset(&pipe_ctx->plane_res, 0, sizeof(pipe_ctx->plane_res));
+	pipe_ctx->top_pipe = NULL;
+	pipe_ctx->bottom_pipe = NULL;
+	pipe_ctx->plane_state = NULL;
+}
+
+void dcn35_disable_plane(struct dc *dc, struct pipe_ctx *pipe_ctx)
+{
+	struct dce_hwseq *hws = dc->hwseq;
+	bool is_phantom = pipe_ctx->plane_state && pipe_ctx->plane_state->is_phantom;
+	struct timing_generator *tg = is_phantom ? pipe_ctx->stream_res.tg : NULL;
+
+	DC_LOGGER_INIT(dc->ctx->logger);
+
+	if (!pipe_ctx->plane_res.hubp || pipe_ctx->plane_res.hubp->power_gated)
+		return;
+
+	if (hws->funcs.plane_atomic_disable)
+		hws->funcs.plane_atomic_disable(dc, pipe_ctx);
+
+	/* Turn back off the phantom OTG after the phantom plane is fully disabled
+	 */
+	if (is_phantom)
+		if (tg && tg->funcs->disable_phantom_crtc)
+			tg->funcs->disable_phantom_crtc(tg);
+
+	DC_LOG_DC("Power down front end %d\n",
+					pipe_ctx->pipe_idx);
+}
+
+void dcn35_calc_blocks_to_gate(struct dc *dc, struct dc_state *context,
+	struct pg_block_update *update_state)
+{
+	bool hpo_frl_stream_enc_acquired = false;
+	bool hpo_dp_stream_enc_acquired = false;
+	int i = 0, j = 0;
+
+	memset(update_state, 0, sizeof(struct pg_block_update));
+
+	for (i = 0; i < dc->res_pool->hpo_dp_stream_enc_count; i++) {
+		if (context->res_ctx.is_hpo_dp_stream_enc_acquired[i] &&
+				dc->res_pool->hpo_dp_stream_enc[i]) {
+			hpo_dp_stream_enc_acquired = true;
+			break;
+		}
+	}
+
+	if (!hpo_frl_stream_enc_acquired && !hpo_dp_stream_enc_acquired)
+		update_state->pg_res_update[PG_HPO] = true;
+
+	update_state->pg_res_update[PG_DWB] = true;
+
+	for (i = 0; i < dc->res_pool->pipe_count; i++) {
+		struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i];
+
+		for (j = 0; j < PG_HW_PIPE_RESOURCES_NUM_ELEMENT; j++)
+			update_state->pg_pipe_res_update[j][i] = true;
+
+		if (!pipe_ctx)
+			continue;
+
+		if (pipe_ctx->plane_res.hubp)
+			update_state->pg_pipe_res_update[PG_HUBP][pipe_ctx->plane_res.hubp->inst] = false;
+
+		if (pipe_ctx->plane_res.dpp)
+			update_state->pg_pipe_res_update[PG_DPP][pipe_ctx->plane_res.hubp->inst] = false;
+
+		if ((pipe_ctx->plane_res.dpp || pipe_ctx->stream_res.opp) &&
+			pipe_ctx->plane_res.mpcc_inst >= 0)
+			update_state->pg_pipe_res_update[PG_MPCC][pipe_ctx->plane_res.mpcc_inst] = false;
+
+		if (pipe_ctx->stream_res.dsc)
+			update_state->pg_pipe_res_update[PG_DSC][pipe_ctx->stream_res.dsc->inst] = false;
+
+		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.tg)
+			update_state->pg_pipe_res_update[PG_OPTC][pipe_ctx->stream_res.tg->inst] = false;
+	}
+}
+
+void dcn35_calc_blocks_to_ungate(struct dc *dc, struct dc_state *context,
+	struct pg_block_update *update_state)
+{
+	bool hpo_frl_stream_enc_acquired = false;
+	bool hpo_dp_stream_enc_acquired = false;
+	int i = 0, j = 0;
+
+	memset(update_state, 0, sizeof(struct pg_block_update));
+
+	for (i = 0; i < dc->res_pool->pipe_count; i++) {
+		struct pipe_ctx *cur_pipe = &dc->current_state->res_ctx.pipe_ctx[i];
+		struct pipe_ctx *new_pipe = &context->res_ctx.pipe_ctx[i];
+
+		if (cur_pipe == NULL || new_pipe == NULL)
+			continue;
+
+		if ((!cur_pipe->plane_state && new_pipe->plane_state) ||
+			(!cur_pipe->stream && new_pipe->stream)) {
+			// New pipe addition
+			for (j = 0; j < PG_HW_PIPE_RESOURCES_NUM_ELEMENT; j++) {
+				if (j == PG_HUBP && new_pipe->plane_res.hubp)
+					update_state->pg_pipe_res_update[j][new_pipe->plane_res.hubp->inst] = true;
+
+				if (j == PG_DPP && new_pipe->plane_res.dpp)
+					update_state->pg_pipe_res_update[j][new_pipe->plane_res.dpp->inst] = true;
+
+				if (j == PG_MPCC && new_pipe->plane_res.dpp)
+					update_state->pg_pipe_res_update[j][new_pipe->plane_res.mpcc_inst] = true;
+
+				if (j == PG_DSC && new_pipe->stream_res.dsc)
+					update_state->pg_pipe_res_update[j][new_pipe->stream_res.dsc->inst] = true;
+
+				if (j == PG_OPP && new_pipe->stream_res.opp)
+					update_state->pg_pipe_res_update[j][new_pipe->stream_res.opp->inst] = true;
+
+				if (j == PG_OPTC && new_pipe->stream_res.tg)
+					update_state->pg_pipe_res_update[j][new_pipe->stream_res.tg->inst] = true;
+			}
+		} else if (cur_pipe->plane_state == new_pipe->plane_state ||
+				cur_pipe == new_pipe) {
+			//unchanged pipes
+			for (j = 0; j < PG_HW_PIPE_RESOURCES_NUM_ELEMENT; j++) {
+				if (j == PG_HUBP &&
+					cur_pipe->plane_res.hubp != new_pipe->plane_res.hubp &&
+					new_pipe->plane_res.hubp)
+					update_state->pg_pipe_res_update[j][new_pipe->plane_res.hubp->inst] = true;
+
+				if (j == PG_DPP &&
+					cur_pipe->plane_res.dpp != new_pipe->plane_res.dpp &&
+					new_pipe->plane_res.dpp)
+					update_state->pg_pipe_res_update[j][new_pipe->plane_res.dpp->inst] = true;
+
+				if (j == PG_OPP &&
+					cur_pipe->stream_res.opp != new_pipe->stream_res.opp &&
+					new_pipe->stream_res.opp)
+					update_state->pg_pipe_res_update[j][new_pipe->stream_res.opp->inst] = true;
+
+				if (j == PG_DSC &&
+					cur_pipe->stream_res.dsc != new_pipe->stream_res.dsc &&
+					new_pipe->stream_res.dsc)
+					update_state->pg_pipe_res_update[j][new_pipe->stream_res.dsc->inst] = true;
+
+				if (j == PG_OPTC &&
+					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;
+			}
+		}
+	}
+
+	for (i = 0; i < dc->res_pool->hpo_dp_stream_enc_count; i++) {
+		if (context->res_ctx.is_hpo_dp_stream_enc_acquired[i] &&
+				dc->res_pool->hpo_dp_stream_enc[i]) {
+			hpo_dp_stream_enc_acquired = true;
+			break;
+		}
+	}
+
+	if (hpo_frl_stream_enc_acquired || hpo_dp_stream_enc_acquired)
+		update_state->pg_res_update[PG_HPO] = true;
+
+}
+
+void dcn35_block_power_control(struct dc *dc,
+	struct pg_block_update *update_state, bool power_on)
+{
+	int i = 0;
+	struct pg_cntl *pg_cntl = dc->res_pool->pg_cntl;
+
+	if (!pg_cntl)
+		return;
+	if (dc->debug.ignore_pg)
+		return;
+	if (update_state->pg_res_update[PG_HPO]) {
+		if (pg_cntl->funcs->hpo_pg_control)
+			pg_cntl->funcs->hpo_pg_control(pg_cntl, power_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, power_on);
+		}
+
+		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, power_on);
+		}
+
+		if (update_state->pg_pipe_res_update[PG_MPCC][i]) {
+			if (pg_cntl->funcs->mpcc_pg_control)
+				pg_cntl->funcs->mpcc_pg_control(pg_cntl, i, power_on);
+		}
+
+		if (update_state->pg_pipe_res_update[PG_OPP][i]) {
+			if (pg_cntl->funcs->opp_pg_control)
+				pg_cntl->funcs->opp_pg_control(pg_cntl, i, power_on);
+		}
+
+		if (update_state->pg_pipe_res_update[PG_OPTC][i]) {
+			if (pg_cntl->funcs->optc_pg_control)
+				pg_cntl->funcs->optc_pg_control(pg_cntl, i, power_on);
+		}
+	}
+
+	if (update_state->pg_res_update[PG_DWB]) {
+		if (pg_cntl->funcs->dwb_pg_control)
+			pg_cntl->funcs->dwb_pg_control(pg_cntl, power_on);
+	}
+
+	if (pg_cntl->funcs->plane_otg_pg_control)
+		pg_cntl->funcs->plane_otg_pg_control(pg_cntl, power_on);
+}
+
+void dcn35_root_clock_control(struct dc *dc,
+	struct pg_block_update *update_state, bool power_on)
+{
+	int i = 0;
+	struct pg_cntl *pg_cntl = dc->res_pool->pg_cntl;
+
+	if (!pg_cntl)
+		return;
+
+	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 (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_DSC][i]) {
+			if (power_on) {
+				if (dc->res_pool->dccg->funcs->enable_dsc)
+					dc->res_pool->dccg->funcs->enable_dsc(dc->res_pool->dccg, i);
+			} else {
+				if (dc->res_pool->dccg->funcs->disable_dsc)
+					dc->res_pool->dccg->funcs->disable_dsc(dc->res_pool->dccg, i);
+			}
+		}
+	}
+}
+
+void dcn35_prepare_bandwidth(
+		struct dc *dc,
+		struct dc_state *context)
+{
+	struct pg_block_update pg_update_state;
+
+	if (dc->hwss.calc_blocks_to_ungate) {
+		dc->hwss.calc_blocks_to_ungate(dc, context, &pg_update_state);
+
+		if (dc->hwss.root_clock_control)
+			dc->hwss.root_clock_control(dc, &pg_update_state, true);
+
+		if (dc->hwss.block_power_control)
+			dc->hwss.block_power_control(dc, &pg_update_state, true);
+	}
+
+	dcn20_prepare_bandwidth(dc, context);
+}
+
+void dcn35_optimize_bandwidth(
+		struct dc *dc,
+		struct dc_state *context)
+{
+	struct pg_block_update pg_update_state;
+
+	dcn20_optimize_bandwidth(dc, context);
+
+	if (dc->hwss.calc_blocks_to_gate) {
+		dc->hwss.calc_blocks_to_gate(dc, context, &pg_update_state);
+
+		if (dc->hwss.block_power_control)
+			dc->hwss.block_power_control(dc, &pg_update_state, false);
+
+		if (dc->hwss.root_clock_control)
+			dc->hwss.root_clock_control(dc, &pg_update_state, false);
+	}
+}

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

+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright 2023 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.
+ *
+ */
+
+#ifndef __DC_HWSS_DCN35_H__
+#define __DC_HWSS_DCN35_H__
+
+#include "hw_sequencer_private.h"
+
+struct dc;
+
+void dcn35_update_odm(struct dc *dc, struct dc_state *context, struct pipe_ctx *pipe_ctx);
+
+void dcn35_dsc_pg_control(struct dce_hwseq *hws, unsigned int dsc_inst, bool power_on);
+
+void dcn35_dpp_root_clock_control(struct dce_hwseq *hws, unsigned int dpp_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);
+
+void dcn35_init_hw(struct dc *dc);
+
+void dcn35_disable_link_output(struct dc_link *link,
+		const struct link_resource *link_res,
+		enum signal_type signal);
+
+void dcn35_power_down_on_boot(struct dc *dc);
+
+bool dcn35_apply_idle_power_optimizations(struct dc *dc, bool enable);
+
+void dcn35_z10_restore(const struct dc *dc);
+
+void dcn35_init_pipes(struct dc *dc, struct dc_state *context);
+void dcn35_plane_atomic_disable(struct dc *dc, struct pipe_ctx *pipe_ctx);
+void dcn35_enable_plane(struct dc *dc, struct pipe_ctx *pipe_ctx,
+			       struct dc_state *context);
+void dcn35_disable_plane(struct dc *dc, struct pipe_ctx *pipe_ctx);
+
+void dcn35_calc_blocks_to_gate(struct dc *dc, struct dc_state *context,
+	struct pg_block_update *update_state);
+void dcn35_calc_blocks_to_ungate(struct dc *dc, struct dc_state *context,
+	struct pg_block_update *update_state);
+void dcn35_block_power_control(struct dc *dc,
+	struct pg_block_update *update_state, bool power_on);
+void dcn35_root_clock_control(struct dc *dc,
+	struct pg_block_update *update_state, bool power_on);
+
+void dcn35_prepare_bandwidth(
+		struct dc *dc,
+		struct dc_state *context);
+
+void dcn35_optimize_bandwidth(
+		struct dc *dc,
+		struct dc_state *context);
+
+void dcn35_setup_hpo_hw_control(const struct dce_hwseq *hws, bool enable);
+void dcn35_dsc_pg_control(
+		struct dce_hwseq *hws,
+		unsigned int dsc_inst,
+		bool power_on);
+#endif /* __DC_HWSS_DCN35_H__ */

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

@@ -45,6 +45,7 @@ struct dpp;
 struct dce_hwseq;
 struct link_resource;
 struct dc_dmub_cmd;
+struct pg_block_update;
 
 struct subvp_pipe_control_lock_fast_params {
 	struct dc *dc;
@@ -405,6 +406,15 @@ struct hw_sequencer_funcs {
 			struct pipe_ctx *phantom_pipe);
 	void (*apply_update_flags_for_phantom)(struct pipe_ctx *phantom_pipe);
 
+	void (*calc_blocks_to_gate)(struct dc *dc, struct dc_state *context,
+		struct pg_block_update *update_state);
+	void (*calc_blocks_to_ungate)(struct dc *dc, struct dc_state *context,
+		struct pg_block_update *update_state);
+	void (*block_power_control)(struct dc *dc,
+		struct pg_block_update *update_state, bool power_on);
+	void (*root_clock_control)(struct dc *dc,
+		struct pg_block_update *update_state, bool power_on);
+
 	void (*commit_subvp_config)(struct dc *dc, struct dc_state *context);
 	void (*enable_phantom_streams)(struct dc *dc, struct dc_state *context);
 	void (*subvp_pipe_control_lock)(struct dc *dc,