drm/amd/display: Add DCN35 DML2 support

Enable DML2 for DCN35.

Changes since V1:
- Remove hard coded values
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Signed-off-by: Qingqing Zhuo <Qingqing.Zhuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dcn35/dcn35_resource.c

@@ -31,7 +31,7 @@
 #include "resource.h"
 #include "include/irq_service_interface.h"
 #include "dcn35_resource.h"
-/*#include "dml2/dml2_wrapper.h"*/
+#include "dml2/dml2_wrapper.h"
 
 #include "dcn20/dcn20_resource.h"
 #include "dcn30/dcn30_resource.h"
@@ -729,7 +729,7 @@ static const struct dc_debug_options debug_defaults_drv = {
 	},
 	.seamless_boot_odm_combine = DML_FAIL_SOURCE_PIXEL_FORMAT,
 	.enable_z9_disable_interface = true, /* Allow support for the PMFW interface for disable Z9*/
-	/* .using_dml2 = true, */
+	.using_dml2 = true,
 	.support_eDP1_5 = true,
 	.enable_hpo_pg_support = false,
 	.enable_legacy_fast_update = true,
@@ -1694,7 +1694,7 @@ static bool dcn35_validate_bandwidth(struct dc *dc,
 {
 	bool out = false;
 
-	/*out = dml2_validate(dc, context, fast_validate);*/
+	out = dml2_validate(dc, context, fast_validate);
 
 	return out;
 }
@@ -2067,18 +2067,19 @@ static bool dcn35_resource_construct(
 
 
 	dc->dcn_ip->max_num_dpp = pool->base.pipe_count;
-#if 0
+
 	dc->dml2_options.dcn_pipe_count = pool->base.pipe_count;
 	dc->dml2_options.use_native_pstate_optimization = false;
 	dc->dml2_options.use_native_soc_bb_construction = true;
+	if (dc->config.EnableMinDispClkODM)
+		dc->dml2_options.minimize_dispclk_using_odm = true;
 
 	dc->dml2_options.callbacks.dc = dc;
 	dc->dml2_options.callbacks.build_scaling_params = &resource_build_scaling_params;
 	dc->dml2_options.callbacks.can_support_mclk_switch_using_fw_based_vblank_stretch = &dcn30_can_support_mclk_switch_using_fw_based_vblank_stretch;
-	dc->dml2_options.callbacks.acquire_secondary_pipe_for_mpc_odm = &dc_resource_acquire_secondary_pipe_for_mpc_odm;
+	dc->dml2_options.callbacks.acquire_secondary_pipe_for_mpc_odm = &dc_resource_acquire_secondary_pipe_for_mpc_odm_legacy;
 	dc->dml2_options.max_segments_per_hubp = 18;
 	dc->dml2_options.det_segment_size = DCN3_2_DET_SEG_SIZE;/*todo*/
-#endif
 
 	if (dc->config.sdpif_request_limit_words_per_umc == 0)
 		dc->config.sdpif_request_limit_words_per_umc = 16;/*todo*/

drivers/gpu/drm/amd/display/dc/dml2/display_mode_core_structs.h

@@ -32,6 +32,8 @@ enum dml_project_id {
 	dml_project_default = 1,
 	dml_project_dcn32 = dml_project_default,
 	dml_project_dcn321 = 2,
+	dml_project_dcn35 = 3,
+	dml_project_dcn351 = 4,
 };
 enum dml_prefetch_modes {
 	dml_prefetch_support_uclk_fclk_and_stutter_if_possible = 0,

drivers/gpu/drm/amd/display/dc/dml2/dml2_policy.c

@@ -298,4 +298,11 @@ void build_unoptimized_policy_settings(enum dml_project_id project, struct dml_m
 	policy->SynchronizeDRRDisplaysForUCLKPStateChangeFinal = true;
 	policy->AssumeModeSupportAtMaxPwrStateEvenDRAMClockChangeNotSupported = true; // TOREVIEW: What does this mean?
 	policy->AssumeModeSupportAtMaxPwrStateEvenFClockChangeNotSupported = true; // TOREVIEW: What does this mean?
+	if (project == dml_project_dcn35 ||
+		project == dml_project_dcn351) {
+		policy->DCCProgrammingAssumesScanDirectionUnknownFinal = false;
+		policy->EnhancedPrefetchScheduleAccelerationFinal = 0;
+		policy->AllowForPStateChangeOrStutterInVBlankFinal = dml_prefetch_support_uclk_fclk_and_stutter_if_possible; /*new*/
+		policy->UseOnlyMaxPrefetchModes = 1;
+	}
 }

drivers/gpu/drm/amd/display/dc/dml2/dml2_translation_helper.c

@@ -103,6 +103,76 @@ void dml2_init_ip_params(struct dml2_context *dml2, const struct dc *in_dc, stru
 		out->max_num_dp2p0_streams = 4;
 		break;
 
+	case dml_project_dcn35:
+	case dml_project_dcn351:
+		out->rob_buffer_size_kbytes = 64;
+		out->config_return_buffer_size_in_kbytes = 1792;
+		out->compressed_buffer_segment_size_in_kbytes = 64;
+		out->meta_fifo_size_in_kentries = 32;
+		out->zero_size_buffer_entries = 512;
+		out->pixel_chunk_size_kbytes = 8;
+		out->alpha_pixel_chunk_size_kbytes = 4;
+		out->min_pixel_chunk_size_bytes = 1024;
+		out->meta_chunk_size_kbytes = 2;
+		out->min_meta_chunk_size_bytes = 256;
+		out->writeback_chunk_size_kbytes = 8;
+		out->dpte_buffer_size_in_pte_reqs_luma = 68;
+		out->dpte_buffer_size_in_pte_reqs_chroma = 36;
+		out->dcc_meta_buffer_size_bytes = 6272;
+		out->gpuvm_enable = 1;
+		out->hostvm_enable = 1;
+		out->gpuvm_max_page_table_levels = 1;
+		out->hostvm_max_page_table_levels = 2;
+		out->num_dsc = 4;
+		out->maximum_dsc_bits_per_component = 12;
+		out->maximum_pixels_per_line_per_dsc_unit = 6016;
+		out->dsc422_native_support = 1;
+		out->line_buffer_size_bits = 986880;
+		out->dcc_supported = 1;
+		out->max_line_buffer_lines = 32;
+		out->writeback_interface_buffer_size_kbytes = 90;
+		out->max_num_dpp = 4;
+		out->max_num_otg = 4;
+		out->max_num_hdmi_frl_outputs = 1;
+		out->max_num_dp2p0_outputs = 2;
+		out->max_num_dp2p0_streams = 4;
+		out->max_num_wb = 1;
+
+		out->max_dchub_pscl_bw_pix_per_clk = 4;
+		out->max_pscl_lb_bw_pix_per_clk = 2;
+		out->max_lb_vscl_bw_pix_per_clk = 4;
+		out->max_vscl_hscl_bw_pix_per_clk = 4;
+		out->max_hscl_ratio = 6;
+		out->max_vscl_ratio = 6;
+		out->max_hscl_taps = 8;
+		out->max_vscl_taps = 8;
+		out->dispclk_ramp_margin_percent = 1.11;
+
+		out->dppclk_delay_subtotal = 47;
+		out->dppclk_delay_scl = 50;
+		out->dppclk_delay_scl_lb_only = 16;
+		out->dppclk_delay_cnvc_formatter = 28;
+		out->dppclk_delay_cnvc_cursor = 6;
+		out->dispclk_delay_subtotal = 125;
+
+		out->dynamic_metadata_vm_enabled = false;
+		out->max_inter_dcn_tile_repeaters = 8;
+		out->cursor_buffer_size = 16; // kBytes
+		out->cursor_chunk_size = 2; // kBytes
+
+		out->writeback_line_buffer_buffer_size = 0;
+		out->writeback_max_hscl_ratio = 1;
+		out->writeback_max_vscl_ratio = 1;
+		out->writeback_min_hscl_ratio = 1;
+		out->writeback_min_vscl_ratio = 1;
+		out->writeback_max_hscl_taps  = 1;
+		out->writeback_max_vscl_taps  = 1;
+		out->ptoi_supported	= 0;
+
+		out->vblank_nom_default_us = 668; /*not in dml, but in programming guide, hard coded in dml2_translate_ip_params*/
+		out->config_return_buffer_segment_size_in_kbytes = 64; /*required, but not exist,, hard coded in dml2_translate_ip_params*/
+		break;
+
 	}
 }
 
@@ -155,6 +225,17 @@ void dml2_init_socbb_params(struct dml2_context *dml2, const struct dc *in_dc, s
 		out->smn_latency_us = 0;
 		break;
 
+	case dml_project_dcn35:
+		out->num_chans = 4;
+		out->round_trip_ping_latency_dcfclk_cycles = 106;
+		out->smn_latency_us = 2;
+		break;
+
+	case dml_project_dcn351:
+		out->num_chans = 16;
+		out->round_trip_ping_latency_dcfclk_cycles = 1100;
+		out->smn_latency_us = 2;
+		break;
 	}
 	/* ---Overrides if available--- */
 	if (dml2->config.bbox_overrides.dram_num_chan)
@@ -255,7 +336,6 @@ void dml2_init_soc_states(struct dml2_context *dml2, const struct dc *in_dc,
 		p->in_states->state_array[1].dcfclk_mhz = 1434.0;
 		p->in_states->state_array[1].dram_speed_mts = 1000 * transactions_per_mem_clock;
 		break;
-
 	}
 
 	/* Override from passed values, mainly for debugging purposes, if available */
@@ -287,6 +367,13 @@ void dml2_init_soc_states(struct dml2_context *dml2, const struct dc *in_dc,
 		p->dcfclk_stas_mhz[2] = 906;
 		p->dcfclk_stas_mhz[3] = 1324;
 		p->dcfclk_stas_mhz[4] = p->in_states->state_array[1].dcfclk_mhz;
+	} else if (dml2->v20.dml_core_ctx.project != dml_project_dcn35 &&
+			dml2->v20.dml_core_ctx.project != dml_project_dcn351) {
+		p->dcfclk_stas_mhz[0] = 300;
+		p->dcfclk_stas_mhz[1] = 615;
+		p->dcfclk_stas_mhz[2] = 906;
+		p->dcfclk_stas_mhz[3] = 1324;
+		p->dcfclk_stas_mhz[4] = 1500;
 	}
 	/* Copy clocks tables entries, if available */
 	if (dml2->config.bbox_overrides.clks_table.num_states) {

drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.c

@@ -694,6 +694,12 @@ bool dml2_create(const struct dc *in_dc, const struct dml2_configuration_options
 	(*dml2)->config = *config;
 
 	switch (in_dc->ctx->dce_version) {
+	case DCN_VERSION_3_5:
+		(*dml2)->v20.dml_core_ctx.project = dml_project_dcn35;
+		break;
+	case DCN_VERSION_3_51:
+		(*dml2)->v20.dml_core_ctx.project = dml_project_dcn351;
+		break;
 	case DCN_VERSION_3_2:
 		(*dml2)->v20.dml_core_ctx.project = dml_project_dcn32;
 		break;