// 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. * * Authors: AMD * */ #include "resource.h" #include "dcn35_fpu.h" #include "dcn31/dcn31_resource.h" #include "dcn32/dcn32_resource.h" #include "dcn35/dcn35_resource.h" #include "dml/dcn31/dcn31_fpu.h" #include "dml/dml_inline_defs.h" #include "link.h" #define DC_LOGGER_INIT(logger) struct _vcs_dpi_ip_params_st dcn3_5_ip = { .VBlankNomDefaultUS = 668, .gpuvm_enable = 1, .gpuvm_max_page_table_levels = 1, .hostvm_enable = 1, .hostvm_max_page_table_levels = 2, .rob_buffer_size_kbytes = 64, .det_buffer_size_kbytes = 1536, .config_return_buffer_size_in_kbytes = 1792, .compressed_buffer_segment_size_in_kbytes = 64, .meta_fifo_size_in_kentries = 32, .zero_size_buffer_entries = 512, .compbuf_reserved_space_64b = 256, .compbuf_reserved_space_zs = 64, .dpp_output_buffer_pixels = 2560,/*not used*/ .opp_output_buffer_lines = 1,/*not used*/ .pixel_chunk_size_kbytes = 8, //.alpha_pixel_chunk_size_kbytes = 4;/*new*/ //.min_pixel_chunk_size_bytes = 1024;/*new*/ .meta_chunk_size_kbytes = 2, .min_meta_chunk_size_bytes = 256, .writeback_chunk_size_kbytes = 8, .ptoi_supported = false, .num_dsc = 4, .maximum_dsc_bits_per_component = 12,/*delta from 10*/ .dsc422_native_support = true,/*delta from false*/ .is_line_buffer_bpp_fixed = true,/*new*/ .line_buffer_fixed_bpp = 32,/*delta from 48*/ .line_buffer_size_bits = 986880,/*delta from 789504*/ .max_line_buffer_lines = 32,/*delta from 12*/ .writeback_interface_buffer_size_kbytes = 90, .max_num_dpp = 4, .max_num_otg = 4, .max_num_hdmi_frl_outputs = 1, .max_num_wb = 1, /*.max_num_hdmi_frl_outputs = 1; new in dml2*/ /*.max_num_dp2p0_outputs = 2; new in dml2*/ /*.max_num_dp2p0_streams = 4; new in dml2*/ .max_dchub_pscl_bw_pix_per_clk = 4, .max_pscl_lb_bw_pix_per_clk = 2, .max_lb_vscl_bw_pix_per_clk = 4, .max_vscl_hscl_bw_pix_per_clk = 4, .max_hscl_ratio = 6, .max_vscl_ratio = 6, .max_hscl_taps = 8, .max_vscl_taps = 8, .dpte_buffer_size_in_pte_reqs_luma = 68,/*changed from 64,*/ .dpte_buffer_size_in_pte_reqs_chroma = 36,/*changed from 34*/ /*.dcc_meta_buffer_size_bytes = 6272; new to dml2*/ .dispclk_ramp_margin_percent = 1.11,/*delta from 1*/ /*.dppclk_delay_subtotal = 47; .dppclk_delay_scl = 50; .dppclk_delay_scl_lb_only = 16; .dppclk_delay_cnvc_formatter = 28; .dppclk_delay_cnvc_cursor = 6; .dispclk_delay_subtotal = 125;*/ /*new to dml2*/ .max_inter_dcn_tile_repeaters = 8, .cursor_buffer_size = 16, .cursor_chunk_size = 2, .writeback_line_buffer_buffer_size = 0, .writeback_min_hscl_ratio = 1, .writeback_min_vscl_ratio = 1, .writeback_max_hscl_ratio = 1, .writeback_max_vscl_ratio = 1, .writeback_max_hscl_taps = 1, .writeback_max_vscl_taps = 1, .dppclk_delay_subtotal = 47, /* changed from 46,*/ .dppclk_delay_scl = 50, .dppclk_delay_scl_lb_only = 16, .dppclk_delay_cnvc_formatter = 28,/*changed from 27,*/ .dppclk_delay_cnvc_cursor = 6, .dispclk_delay_subtotal = 125, /*changed from 119,*/ .dynamic_metadata_vm_enabled = false, .odm_combine_4to1_supported = false, .dcc_supported = true, // .config_return_buffer_segment_size_in_kbytes = 64;/*required, hard coded in dml2_translate_ip_params*/ }; struct _vcs_dpi_soc_bounding_box_st dcn3_5_soc = { /*TODO: correct dispclk/dppclk voltage level determination*/ .clock_limits = { { .state = 0, .dispclk_mhz = 1200.0, .dppclk_mhz = 1200.0, .phyclk_mhz = 600.0, .phyclk_d18_mhz = 667.0, .dscclk_mhz = 186.0, .dtbclk_mhz = 600.0, }, { .state = 1, .dispclk_mhz = 1200.0, .dppclk_mhz = 1200.0, .phyclk_mhz = 810.0, .phyclk_d18_mhz = 667.0, .dscclk_mhz = 209.0, .dtbclk_mhz = 600.0, }, { .state = 2, .dispclk_mhz = 1200.0, .dppclk_mhz = 1200.0, .phyclk_mhz = 810.0, .phyclk_d18_mhz = 667.0, .dscclk_mhz = 209.0, .dtbclk_mhz = 600.0, }, { .state = 3, .dispclk_mhz = 1200.0, .dppclk_mhz = 1200.0, .phyclk_mhz = 810.0, .phyclk_d18_mhz = 667.0, .dscclk_mhz = 371.0, .dtbclk_mhz = 600.0, }, { .state = 4, .dispclk_mhz = 1200.0, .dppclk_mhz = 1200.0, .phyclk_mhz = 810.0, .phyclk_d18_mhz = 667.0, .dscclk_mhz = 417.0, .dtbclk_mhz = 600.0, }, }, .num_states = 5, .sr_exit_time_us = 28.0, .sr_enter_plus_exit_time_us = 30.0, .sr_exit_z8_time_us = 250.0, .sr_enter_plus_exit_z8_time_us = 350.0, .fclk_change_latency_us = 24.0, .usr_retraining_latency_us = 2, .writeback_latency_us = 12.0, .dram_channel_width_bytes = 4,/*not exist in dml2*/ .round_trip_ping_latency_dcfclk_cycles = 106,/*not exist in dml2*/ .urgent_latency_pixel_data_only_us = 4.0, .urgent_latency_pixel_mixed_with_vm_data_us = 4.0, .urgent_latency_vm_data_only_us = 4.0, .dram_clock_change_latency_us = 34.0, .urgent_out_of_order_return_per_channel_pixel_only_bytes = 4096, .urgent_out_of_order_return_per_channel_pixel_and_vm_bytes = 4096, .urgent_out_of_order_return_per_channel_vm_only_bytes = 4096, .pct_ideal_sdp_bw_after_urgent = 80.0, .pct_ideal_fabric_bw_after_urgent = 80.0, /*new to dml2*/ .pct_ideal_dram_sdp_bw_after_urgent_pixel_only = 65.0, .pct_ideal_dram_sdp_bw_after_urgent_pixel_and_vm = 60.0, .pct_ideal_dram_sdp_bw_after_urgent_vm_only = 30.0, .max_avg_sdp_bw_use_normal_percent = 60.0, .max_avg_dram_bw_use_normal_percent = 60.0, .fabric_datapath_to_dcn_data_return_bytes = 32, .return_bus_width_bytes = 64, .downspread_percent = 0.38, .dcn_downspread_percent = 0.5, .gpuvm_min_page_size_bytes = 4096, .hostvm_min_page_size_bytes = 4096, .do_urgent_latency_adjustment = 1, .urgent_latency_adjustment_fabric_clock_component_us = 0, .urgent_latency_adjustment_fabric_clock_reference_mhz = 3000, }; void dcn35_build_wm_range_table_fpu(struct clk_mgr *clk_mgr) { //TODO } /* * dcn35_update_bw_bounding_box * * This would override some dcn3_5 ip_or_soc initial parameters hardcoded from * spreadsheet with actual values as per dGPU SKU: * - with passed few options from dc->config * - with dentist_vco_frequency from Clk Mgr (currently hardcoded, but might * need to get it from PM FW) * - with passed latency values (passed in ns units) in dc-> bb override for * debugging purposes * - with passed latencies from VBIOS (in 100_ns units) if available for * certain dGPU SKU * - with number of DRAM channels from VBIOS (which differ for certain dGPU SKU * of the same ASIC) * - clocks levels with passed clk_table entries from Clk Mgr as reported by PM * FW for different clocks (which might differ for certain dGPU SKU of the * same ASIC) */ void dcn35_update_bw_bounding_box_fpu(struct dc *dc, struct clk_bw_params *bw_params) { unsigned int i, closest_clk_lvl; int j; struct clk_limit_table *clk_table = &bw_params->clk_table; struct _vcs_dpi_voltage_scaling_st *clock_limits = dc->scratch.update_bw_bounding_box.clock_limits; int max_dispclk_mhz = 0, max_dppclk_mhz = 0; dc_assert_fp_enabled(); dcn3_5_ip.max_num_otg = dc->res_pool->res_cap->num_timing_generator; dcn3_5_ip.max_num_dpp = dc->res_pool->pipe_count; dcn3_5_soc.num_chans = bw_params->num_channels; ASSERT(clk_table->num_entries); /* Prepass to find max clocks independent of voltage level. */ for (i = 0; i < clk_table->num_entries; ++i) { if (clk_table->entries[i].dispclk_mhz > max_dispclk_mhz) max_dispclk_mhz = clk_table->entries[i].dispclk_mhz; if (clk_table->entries[i].dppclk_mhz > max_dppclk_mhz) max_dppclk_mhz = clk_table->entries[i].dppclk_mhz; } for (i = 0; i < clk_table->num_entries; i++) { /* loop backwards*/ for (closest_clk_lvl = 0, j = dcn3_5_soc.num_states - 1; j >= 0; j--) { if (dcn3_5_soc.clock_limits[j].dcfclk_mhz <= clk_table->entries[i].dcfclk_mhz) { closest_clk_lvl = j; break; } } if (clk_table->num_entries == 1) { /*smu gives one DPM level, let's take the highest one*/ closest_clk_lvl = dcn3_5_soc.num_states - 1; } clock_limits[i].state = i; /* Clocks dependent on voltage level. */ clock_limits[i].dcfclk_mhz = clk_table->entries[i].dcfclk_mhz; if (clk_table->num_entries == 1 && clock_limits[i].dcfclk_mhz < dcn3_5_soc.clock_limits[closest_clk_lvl].dcfclk_mhz) { /*SMU fix not released yet*/ clock_limits[i].dcfclk_mhz = dcn3_5_soc.clock_limits[closest_clk_lvl].dcfclk_mhz; } clock_limits[i].fabricclk_mhz = clk_table->entries[i].fclk_mhz; clock_limits[i].socclk_mhz = clk_table->entries[i].socclk_mhz; if (clk_table->entries[i].memclk_mhz && clk_table->entries[i].wck_ratio) clock_limits[i].dram_speed_mts = clk_table->entries[i].memclk_mhz * 2 * clk_table->entries[i].wck_ratio; /* Clocks independent of voltage level. */ clock_limits[i].dispclk_mhz = max_dispclk_mhz ? max_dispclk_mhz : dcn3_5_soc.clock_limits[closest_clk_lvl].dispclk_mhz; clock_limits[i].dppclk_mhz = max_dppclk_mhz ? max_dppclk_mhz : dcn3_5_soc.clock_limits[closest_clk_lvl].dppclk_mhz; clock_limits[i].dram_bw_per_chan_gbps = dcn3_5_soc.clock_limits[closest_clk_lvl].dram_bw_per_chan_gbps; clock_limits[i].dscclk_mhz = dcn3_5_soc.clock_limits[closest_clk_lvl].dscclk_mhz; clock_limits[i].dtbclk_mhz = dcn3_5_soc.clock_limits[closest_clk_lvl].dtbclk_mhz; clock_limits[i].phyclk_d18_mhz = dcn3_5_soc.clock_limits[closest_clk_lvl].phyclk_d18_mhz; clock_limits[i].phyclk_mhz = dcn3_5_soc.clock_limits[closest_clk_lvl].phyclk_mhz; } memcpy(dcn3_5_soc.clock_limits, clock_limits, sizeof(dcn3_5_soc.clock_limits)); if (clk_table->num_entries) dcn3_5_soc.num_states = clk_table->num_entries; if (max_dispclk_mhz) { dcn3_5_soc.dispclk_dppclk_vco_speed_mhz = max_dispclk_mhz * 2; dc->dml.soc.dispclk_dppclk_vco_speed_mhz = max_dispclk_mhz * 2; } if ((int)(dcn3_5_soc.dram_clock_change_latency_us * 1000) != dc->debug.dram_clock_change_latency_ns && dc->debug.dram_clock_change_latency_ns) { dcn3_5_soc.dram_clock_change_latency_us = dc->debug.dram_clock_change_latency_ns / 1000.0; } if (dc->bb_overrides.dram_clock_change_latency_ns > 0) dcn3_5_soc.dram_clock_change_latency_us = dc->bb_overrides.dram_clock_change_latency_ns / 1000.0; if (dc->bb_overrides.sr_exit_time_ns > 0) dcn3_5_soc.sr_exit_time_us = dc->bb_overrides.sr_exit_time_ns / 1000.0; if (dc->bb_overrides.sr_enter_plus_exit_time_ns > 0) dcn3_5_soc.sr_enter_plus_exit_time_us = dc->bb_overrides.sr_enter_plus_exit_time_ns / 1000.0; if (dc->bb_overrides.sr_exit_z8_time_ns > 0) dcn3_5_soc.sr_exit_z8_time_us = dc->bb_overrides.sr_exit_z8_time_ns / 1000.0; if (dc->bb_overrides.sr_enter_plus_exit_z8_time_ns > 0) dcn3_5_soc.sr_enter_plus_exit_z8_time_us = dc->bb_overrides.sr_enter_plus_exit_z8_time_ns / 1000.0; /*temp till dml2 fully work without dml1*/ dml_init_instance(&dc->dml, &dcn3_5_soc, &dcn3_5_ip, DML_PROJECT_DCN31); /*copy to dml2, before dml2_create*/ if (clk_table->num_entries > 2) { for (i = 0; i < clk_table->num_entries; i++) { dc->dml2_options.bbox_overrides.clks_table.num_states = clk_table->num_entries; dc->dml2_options.bbox_overrides.clks_table.clk_entries[i].dcfclk_mhz = clock_limits[i].dcfclk_mhz; dc->dml2_options.bbox_overrides.clks_table.clk_entries[i].fclk_mhz = clock_limits[i].fabricclk_mhz; dc->dml2_options.bbox_overrides.clks_table.clk_entries[i].dispclk_mhz = clock_limits[i].dispclk_mhz; dc->dml2_options.bbox_overrides.clks_table.clk_entries[i].dppclk_mhz = clock_limits[i].dppclk_mhz; dc->dml2_options.bbox_overrides.clks_table.clk_entries[i].socclk_mhz = clock_limits[i].socclk_mhz; dc->dml2_options.bbox_overrides.clks_table.clk_entries[i].memclk_mhz = clk_table->entries[i].memclk_mhz * clk_table->entries[i].wck_ratio; dc->dml2_options.bbox_overrides.clks_table.clk_entries[i].dtbclk_mhz = clock_limits[i].dtbclk_mhz; dc->dml2_options.bbox_overrides.clks_table.num_entries_per_clk.num_dcfclk_levels = clk_table->num_entries; dc->dml2_options.bbox_overrides.clks_table.num_entries_per_clk.num_fclk_levels = clk_table->num_entries; dc->dml2_options.bbox_overrides.clks_table.num_entries_per_clk.num_dispclk_levels = clk_table->num_entries; dc->dml2_options.bbox_overrides.clks_table.num_entries_per_clk.num_dppclk_levels = clk_table->num_entries; dc->dml2_options.bbox_overrides.clks_table.num_entries_per_clk.num_socclk_levels = clk_table->num_entries; dc->dml2_options.bbox_overrides.clks_table.num_entries_per_clk.num_memclk_levels = clk_table->num_entries; dc->dml2_options.bbox_overrides.clks_table.num_entries_per_clk.num_dtbclk_levels = clk_table->num_entries; } } /* Update latency values */ dc->dml2_options.bbox_overrides.dram_clock_change_latency_us = dcn3_5_soc.dram_clock_change_latency_us; dc->dml2_options.bbox_overrides.sr_exit_latency_us = dcn3_5_soc.sr_exit_time_us; dc->dml2_options.bbox_overrides.sr_enter_plus_exit_latency_us = dcn3_5_soc.sr_enter_plus_exit_time_us; dc->dml2_options.bbox_overrides.sr_exit_z8_time_us = dcn3_5_soc.sr_exit_z8_time_us; dc->dml2_options.bbox_overrides.sr_enter_plus_exit_z8_time_us = dcn3_5_soc.sr_enter_plus_exit_z8_time_us; } static bool is_dual_plane(enum surface_pixel_format format) { return format >= SURFACE_PIXEL_FORMAT_VIDEO_BEGIN || format == SURFACE_PIXEL_FORMAT_GRPH_RGBE_ALPHA; } /* * micro_sec_to_vert_lines () - converts time to number of vertical lines for a given timing * * @param: num_us: number of microseconds * @return: number of vertical lines. If exact number of vertical lines is not found then * it will round up to next number of lines to guarantee num_us */ static unsigned int micro_sec_to_vert_lines(unsigned int num_us, struct dc_crtc_timing *timing) { unsigned int num_lines = 0; unsigned int lines_time_in_ns = 1000.0 * (((float)timing->h_total * 1000.0) / ((float)timing->pix_clk_100hz / 10.0)); num_lines = dml_ceil(1000.0 * num_us / lines_time_in_ns, 1.0); return num_lines; } static unsigned int get_vertical_back_porch(struct dc_crtc_timing *timing) { unsigned int v_active = 0, v_blank = 0, v_back_porch = 0; v_active = timing->v_border_top + timing->v_addressable + timing->v_border_bottom; v_blank = timing->v_total - v_active; v_back_porch = v_blank - timing->v_front_porch - timing->v_sync_width; return v_back_porch; } int dcn35_populate_dml_pipes_from_context_fpu(struct dc *dc, struct dc_state *context, display_e2e_pipe_params_st *pipes, bool fast_validate) { int i, pipe_cnt; struct resource_context *res_ctx = &context->res_ctx; struct pipe_ctx *pipe = 0; bool upscaled = false; const unsigned int max_allowed_vblank_nom = 1023; dcn31_populate_dml_pipes_from_context(dc, context, pipes, fast_validate); for (i = 0, pipe_cnt = 0; i < dc->res_pool->pipe_count; i++) { struct dc_crtc_timing *timing; unsigned int num_lines = 0; unsigned int v_back_porch = 0; if (!res_ctx->pipe_ctx[i].stream) continue; pipe = &res_ctx->pipe_ctx[i]; timing = &pipe->stream->timing; num_lines = micro_sec_to_vert_lines(dcn3_5_ip.VBlankNomDefaultUS, timing); v_back_porch = get_vertical_back_porch(timing); if (pipe->stream->adjust.v_total_max == pipe->stream->adjust.v_total_min && pipe->stream->adjust.v_total_min > timing->v_total) { pipes[pipe_cnt].pipe.dest.vtotal = pipe->stream->adjust.v_total_min; pipes[pipe_cnt].pipe.dest.vblank_nom = timing->v_total - pipes[pipe_cnt].pipe.dest.vactive; } pipes[pipe_cnt].pipe.dest.vblank_nom = timing->v_total - pipes[pipe_cnt].pipe.dest.vactive; pipes[pipe_cnt].pipe.dest.vblank_nom = min(pipes[pipe_cnt].pipe.dest.vblank_nom, num_lines); // vblank_nom should not smaller than (VSync (timing->v_sync_width + v_back_porch) + 2) // + 2 is because // 1 -> VStartup_start should be 1 line before VSync // 1 -> always reserve 1 line between start of vblank to vstartup signal pipes[pipe_cnt].pipe.dest.vblank_nom = max(pipes[pipe_cnt].pipe.dest.vblank_nom, timing->v_sync_width + v_back_porch + 2); pipes[pipe_cnt].pipe.dest.vblank_nom = min(pipes[pipe_cnt].pipe.dest.vblank_nom, max_allowed_vblank_nom); if (pipe->plane_state && (pipe->plane_state->src_rect.height < pipe->plane_state->dst_rect.height || pipe->plane_state->src_rect.width < pipe->plane_state->dst_rect.width)) upscaled = true; /* * Immediate flip can be set dynamically after enabling the * plane. We need to require support for immediate flip or * underflow can be intermittently experienced depending on peak * b/w requirements. */ pipes[pipe_cnt].pipe.src.immediate_flip = true; pipes[pipe_cnt].pipe.src.unbounded_req_mode = false; DC_FP_START(); dcn31_zero_pipe_dcc_fraction(pipes, pipe_cnt); DC_FP_END(); pipes[pipe_cnt].pipe.dest.vfront_porch = timing->v_front_porch; pipes[pipe_cnt].pipe.src.dcc_rate = 3; pipes[pipe_cnt].dout.dsc_input_bpc = 0; pipes[pipe_cnt].pipe.src.gpuvm_min_page_size_kbytes = 256; if (pipes[pipe_cnt].dout.dsc_enable) { switch (timing->display_color_depth) { case COLOR_DEPTH_888: pipes[pipe_cnt].dout.dsc_input_bpc = 8; break; case COLOR_DEPTH_101010: pipes[pipe_cnt].dout.dsc_input_bpc = 10; break; case COLOR_DEPTH_121212: pipes[pipe_cnt].dout.dsc_input_bpc = 12; break; default: ASSERT(0); break; } } pipe_cnt++; } context->bw_ctx.dml.ip.det_buffer_size_kbytes = 384;/*per guide*/ dc->config.enable_4to1MPC = false; if (pipe_cnt == 1 && pipe->plane_state && !dc->debug.disable_z9_mpc) { if (is_dual_plane(pipe->plane_state->format) && pipe->plane_state->src_rect.width <= 1920 && pipe->plane_state->src_rect.height <= 1080) { dc->config.enable_4to1MPC = true; } else if (!is_dual_plane(pipe->plane_state->format) && pipe->plane_state->src_rect.width <= 5120) { /* * Limit to 5k max to avoid forced pipe split when there * is not enough detile for swath */ context->bw_ctx.dml.ip.det_buffer_size_kbytes = 192; pipes[0].pipe.src.unbounded_req_mode = true; } } else if (context->stream_count >= dc->debug.crb_alloc_policy_min_disp_count && dc->debug.crb_alloc_policy > DET_SIZE_DEFAULT) { context->bw_ctx.dml.ip.det_buffer_size_kbytes = dc->debug.crb_alloc_policy * 64; } else if (context->stream_count >= 3 && upscaled) { context->bw_ctx.dml.ip.det_buffer_size_kbytes = 192; } for (i = 0; i < dc->res_pool->pipe_count; i++) { struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i]; if (!pipe->stream) continue; if (pipe->stream->signal == SIGNAL_TYPE_EDP && dc->debug.seamless_boot_odm_combine && pipe->stream->apply_seamless_boot_optimization) { if (pipe->stream->apply_boot_odm_mode == dm_odm_combine_policy_2to1) { context->bw_ctx.dml.vba.ODMCombinePolicy = dm_odm_combine_policy_2to1; break; } } } return pipe_cnt; } void dcn35_decide_zstate_support(struct dc *dc, struct dc_state *context) { enum dcn_zstate_support_state support = DCN_ZSTATE_SUPPORT_DISALLOW; unsigned int i, plane_count = 0; DC_LOGGER_INIT(dc->ctx->logger); for (i = 0; i < dc->res_pool->pipe_count; i++) { if (context->res_ctx.pipe_ctx[i].plane_state) plane_count++; } if (context->stream_count == 0 || plane_count == 0) { support = DCN_ZSTATE_SUPPORT_ALLOW; } else if (context->stream_count == 1 && context->streams[0]->signal == SIGNAL_TYPE_EDP) { struct dc_link *link = context->streams[0]->sink->link; bool is_pwrseq0 = link && link->link_index == 0; bool is_psr = (link && (link->psr_settings.psr_version == DC_PSR_VERSION_1 || link->psr_settings.psr_version == DC_PSR_VERSION_SU_1) && !link->panel_config.psr.disable_psr); bool is_replay = link && link->replay_settings.replay_feature_enabled; int minmum_z8_residency = dc->debug.minimum_z8_residency_time > 0 ? dc->debug.minimum_z8_residency_time : 1000; bool allow_z8 = context->bw_ctx.dml.vba.StutterPeriod > (double)minmum_z8_residency; int minmum_z10_residency = dc->debug.minimum_z10_residency_time > 0 ? dc->debug.minimum_z10_residency_time : 5000; bool allow_z10 = context->bw_ctx.dml.vba.StutterPeriod > (double)minmum_z10_residency; /*for psr1/psr-su, we allow z8 and z10 based on latency, for replay with IPS enabled, it will enter ips2*/ if (is_pwrseq0 && allow_z10) support = DCN_ZSTATE_SUPPORT_ALLOW; else if (is_pwrseq0 && (is_psr || is_replay)) support = DCN_ZSTATE_SUPPORT_ALLOW_Z8_Z10_ONLY; else if (allow_z8) support = DCN_ZSTATE_SUPPORT_ALLOW_Z8_ONLY; } DC_LOG_SMU("zstate_support: %d, StutterPeriod: %d\n", support, (int)context->bw_ctx.dml.vba.StutterPeriod); context->bw_ctx.bw.dcn.clk.zstate_support = support; }