drm/amd/display: Export additional FAMS2 global configuration options from DML

[WHY&HOW]
Some global configuration options were previously hardcoded in DC, now they are
exported by DML and sent to FW.
Reviewed-by: Martin Leung <martin.leung@amd.com>
Signed-off-by: Jerry Zuo <jerry.zuo@amd.com>
Signed-off-by: Dillon Varone <dillon.varone@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/core/dc_state.c

@@ -967,10 +967,10 @@ bool dc_state_is_fams2_in_use(
 	bool is_fams2_in_use = false;
 
 	if (state)
-		is_fams2_in_use |= state->bw_ctx.bw.dcn.fams2_stream_count > 0;
+		is_fams2_in_use |= state->bw_ctx.bw.dcn.fams2_global_config.features.bits.enable;
 
 	if (dc->current_state)
-		is_fams2_in_use |= dc->current_state->bw_ctx.bw.dcn.fams2_stream_count > 0;
+		is_fams2_in_use |= dc->current_state->bw_ctx.bw.dcn.fams2_global_config.features.bits.enable;
 
 	return is_fams2_in_use;
 }

drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c

@@ -1672,22 +1672,17 @@ void dc_dmub_srv_fams2_update_config(struct dc *dc,
 	global_cmd->header.sub_type = DMUB_CMD__FAMS2_CONFIG;
 	global_cmd->header.payload_bytes = sizeof(struct dmub_rb_cmd_fams2) - sizeof(struct dmub_cmd_header);
 
-	/* send global configuration parameters */
-	global_cmd->config.global.max_allow_delay_us = 100 * 1000; //100ms
-	global_cmd->config.global.lock_wait_time_us = 5000; //5ms
-	global_cmd->config.global.recovery_timeout_us = 5000; //5ms
-	global_cmd->config.global.hwfq_flip_programming_delay_us = 100; //100us
-
-	/* copy static feature configuration */
-	global_cmd->config.global.features.all = dc->debug.fams2_config.all;
+	if (enable) {
+		/* send global configuration parameters */
+		memcpy(&global_cmd->config.global, &context->bw_ctx.bw.dcn.fams2_global_config, sizeof(struct dmub_cmd_fams2_global_config));
 
-	/* apply feature configuration based on current driver state */
-	global_cmd->config.global.features.bits.enable_visual_confirm = dc->debug.visual_confirm == VISUAL_CONFIRM_FAMS2;
-	global_cmd->config.global.features.bits.enable = enable;
+		/* copy static feature configuration overrides */
+		global_cmd->config.global.features.bits.enable_stall_recovery = dc->debug.fams2_config.bits.enable_stall_recovery;
+		global_cmd->config.global.features.bits.enable_debug = dc->debug.fams2_config.bits.enable_debug;
+		global_cmd->config.global.features.bits.enable_offload_flip = dc->debug.fams2_config.bits.enable_offload_flip;
 
-	/* construct per-stream configs */
-	if (enable) {
-		for (i = 0; i < context->bw_ctx.bw.dcn.fams2_stream_count; i++) {
+		/* construct per-stream configs */
+		for (i = 0; i < context->bw_ctx.bw.dcn.fams2_global_config.num_streams; i++) {
 			struct dmub_rb_cmd_fams2 *stream_cmd = &cmd[i+1].fams2_config;
 
 			/* configure command header */
@@ -1702,12 +1697,15 @@ void dc_dmub_srv_fams2_update_config(struct dc *dc,
 		}
 	}
 
-	if (enable && context->bw_ctx.bw.dcn.fams2_stream_count) {
+	/* apply feature configuration based on current driver state */
+	global_cmd->config.global.features.bits.enable_visual_confirm = dc->debug.visual_confirm == VISUAL_CONFIRM_FAMS2;
+	global_cmd->config.global.features.bits.enable = enable;
+
+	if (enable && context->bw_ctx.bw.dcn.fams2_global_config.features.bits.enable) {
 		/* set multi pending for global, and unset for last stream cmd */
-		global_cmd->config.global.num_streams = context->bw_ctx.bw.dcn.fams2_stream_count;
 		global_cmd->header.multi_cmd_pending = 1;
-		cmd[context->bw_ctx.bw.dcn.fams2_stream_count].fams2_config.header.multi_cmd_pending = 0;
-		num_cmds += context->bw_ctx.bw.dcn.fams2_stream_count;
+		cmd[context->bw_ctx.bw.dcn.fams2_global_config.num_streams].fams2_config.header.multi_cmd_pending = 0;
+		num_cmds += context->bw_ctx.bw.dcn.fams2_global_config.num_streams;
 	}
 
 	dm_execute_dmub_cmd_list(dc->ctx, num_cmds, cmd, DM_DMUB_WAIT_TYPE_WAIT);

drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_utils.c

@@ -461,94 +461,103 @@ void dml21_build_fams2_programming(const struct dc *dc,
 		struct dml2_context *dml_ctx)
 {
 	int i, j, k;
+	unsigned int num_fams2_streams = 0;
 
 	/* reset fams2 data */
-	context->bw_ctx.bw.dcn.fams2_stream_count = 0;
 	memset(&context->bw_ctx.bw.dcn.fams2_stream_params, 0, sizeof(struct dmub_fams2_stream_static_state) * DML2_MAX_PLANES);
+	memset(&context->bw_ctx.bw.dcn.fams2_global_config, 0, sizeof(struct dmub_cmd_fams2_global_config));
 
-	if (!dml_ctx->v21.mode_programming.programming->fams2_required)
-		return;
+	if (dml_ctx->v21.mode_programming.programming->fams2_required) {
+		for (i = 0; i < context->stream_count; i++) {
+			int dml_stream_idx;
+			struct dc_stream_state *phantom_stream;
+			struct dc_stream_status *phantom_status;
 
-	for (i = 0; i < context->stream_count; i++) {
-		int dml_stream_idx;
-		struct dc_stream_state *phantom_stream;
-		struct dc_stream_status *phantom_status;
+			struct dmub_fams2_stream_static_state *static_state = &context->bw_ctx.bw.dcn.fams2_stream_params[num_fams2_streams];
 
-		struct dmub_fams2_stream_static_state *static_state = &context->bw_ctx.bw.dcn.fams2_stream_params[context->bw_ctx.bw.dcn.fams2_stream_count];
+			struct dc_stream_state *stream = context->streams[i];
 
-		struct dc_stream_state *stream = context->streams[i];
-
-		if (context->stream_status[i].plane_count == 0 ||
-				dml_ctx->config.svp_pstate.callbacks.get_stream_subvp_type(context, stream) == SUBVP_PHANTOM) {
-			/* can ignore blanked or phantom streams */
-			continue;
-		}
-
-		dml_stream_idx = dml21_helper_find_dml_pipe_idx_by_stream_id(dml_ctx, stream->stream_id);
-		if (dml_stream_idx < 0) {
-			ASSERT(dml_stream_idx >= 0);
-			continue;
-		}
-
-		/* copy static state from PMO */
-		memcpy(static_state,
-				&dml_ctx->v21.mode_programming.programming->stream_programming[dml_stream_idx].fams2_params,
-				sizeof(struct dmub_fams2_stream_static_state));
-
-		/* get information from context */
-		static_state->num_planes = context->stream_status[i].plane_count;
-		static_state->otg_inst = context->stream_status[i].primary_otg_inst;
-
-		/* populate pipe masks for planes */
-		for (j = 0; j < context->stream_status[i].plane_count; j++) {
-			for (k = 0; k < dc->res_pool->pipe_count; k++) {
-				if (context->res_ctx.pipe_ctx[k].stream &&
-						context->res_ctx.pipe_ctx[k].stream->stream_id == stream->stream_id &&
-						context->res_ctx.pipe_ctx[k].plane_state == context->stream_status[i].plane_states[j]) {
-					static_state->pipe_mask |= (1 << k);
-					static_state->plane_pipe_masks[j] |= (1 << k);
-				}
+			if (context->stream_status[i].plane_count == 0 ||
+					dml_ctx->config.svp_pstate.callbacks.get_stream_subvp_type(context, stream) == SUBVP_PHANTOM) {
+				/* can ignore blanked or phantom streams */
+				continue;
 			}
-		}
 
-		/* get per method programming */
-		switch (static_state->type) {
-		case FAMS2_STREAM_TYPE_VBLANK:
-		case FAMS2_STREAM_TYPE_VACTIVE:
-		case FAMS2_STREAM_TYPE_DRR:
-			break;
-		case FAMS2_STREAM_TYPE_SUBVP:
-			phantom_stream = dml_ctx->config.svp_pstate.callbacks.get_paired_subvp_stream(context, stream);
-			if (!phantom_stream)
-				break;
+			dml_stream_idx = dml21_helper_find_dml_pipe_idx_by_stream_id(dml_ctx, stream->stream_id);
+			if (dml_stream_idx < 0) {
+				ASSERT(dml_stream_idx >= 0);
+				continue;
+			}
 
-			phantom_status = dml_ctx->config.callbacks.get_stream_status(context, phantom_stream);
+			/* copy static state from PMO */
+			memcpy(static_state,
+					&dml_ctx->v21.mode_programming.programming->stream_programming[dml_stream_idx].fams2_params,
+					sizeof(struct dmub_fams2_stream_static_state));
 
-			/* phantom status should always be present */
-			ASSERT(phantom_status);
-			static_state->sub_state.subvp.phantom_otg_inst = phantom_status->primary_otg_inst;
+			/* get information from context */
+			static_state->num_planes = context->stream_status[i].plane_count;
+			static_state->otg_inst = context->stream_status[i].primary_otg_inst;
 
-			/* populate pipe masks for phantom planes */
-			for (j = 0; j < phantom_status->plane_count; j++) {
+			/* populate pipe masks for planes */
+			for (j = 0; j < context->stream_status[i].plane_count; j++) {
 				for (k = 0; k < dc->res_pool->pipe_count; k++) {
 					if (context->res_ctx.pipe_ctx[k].stream &&
-							context->res_ctx.pipe_ctx[k].stream->stream_id == phantom_stream->stream_id &&
-							context->res_ctx.pipe_ctx[k].plane_state == phantom_status->plane_states[j]) {
-						static_state->sub_state.subvp.phantom_pipe_mask |= (1 << k);
-						static_state->sub_state.subvp.phantom_plane_pipe_masks[j] |= (1 << k);
+							context->res_ctx.pipe_ctx[k].stream->stream_id == stream->stream_id &&
+							context->res_ctx.pipe_ctx[k].plane_state == context->stream_status[i].plane_states[j]) {
+						static_state->pipe_mask |= (1 << k);
+						static_state->plane_pipe_masks[j] |= (1 << k);
 					}
 				}
 			}
-			break;
-		default:
-			ASSERT(false);
-			break;
+
+			/* get per method programming */
+			switch (static_state->type) {
+			case FAMS2_STREAM_TYPE_VBLANK:
+			case FAMS2_STREAM_TYPE_VACTIVE:
+			case FAMS2_STREAM_TYPE_DRR:
+				break;
+			case FAMS2_STREAM_TYPE_SUBVP:
+				phantom_stream = dml_ctx->config.svp_pstate.callbacks.get_paired_subvp_stream(context, stream);
+				if (!phantom_stream)
+					break;
+
+				phantom_status = dml_ctx->config.callbacks.get_stream_status(context, phantom_stream);
+
+				/* phantom status should always be present */
+				ASSERT(phantom_status);
+				static_state->sub_state.subvp.phantom_otg_inst = phantom_status->primary_otg_inst;
+
+				/* populate pipe masks for phantom planes */
+				for (j = 0; j < phantom_status->plane_count; j++) {
+					for (k = 0; k < dc->res_pool->pipe_count; k++) {
+						if (context->res_ctx.pipe_ctx[k].stream &&
+								context->res_ctx.pipe_ctx[k].stream->stream_id == phantom_stream->stream_id &&
+								context->res_ctx.pipe_ctx[k].plane_state == phantom_status->plane_states[j]) {
+							static_state->sub_state.subvp.phantom_pipe_mask |= (1 << k);
+							static_state->sub_state.subvp.phantom_plane_pipe_masks[j] |= (1 << k);
+						}
+					}
+				}
+				break;
+			default:
+				ASSERT(false);
+				break;
+			}
+
+			num_fams2_streams++;
 		}
+	}
+
+	if (num_fams2_streams > 0) {
+		/* copy FAMS2 configuration */
+		memcpy(&context->bw_ctx.bw.dcn.fams2_global_config,
+				&dml_ctx->v21.mode_programming.programming->fams2_global_config,
+				sizeof(struct dmub_cmd_fams2_global_config));
 
-		context->bw_ctx.bw.dcn.fams2_stream_count++;
+		context->bw_ctx.bw.dcn.fams2_global_config.num_streams = num_fams2_streams;
 	}
 
-	context->bw_ctx.bw.dcn.clk.fw_based_mclk_switching = context->bw_ctx.bw.dcn.fams2_stream_count > 0;
+	context->bw_ctx.bw.dcn.clk.fw_based_mclk_switching = context->bw_ctx.bw.dcn.fams2_global_config.features.bits.enable;
 }
 
 bool dml21_is_plane1_enabled(enum dml2_source_format_class source_format)

drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_dcn4.c

@@ -351,6 +351,7 @@ static void pack_mode_programming_params_with_implicit_subvp(struct dml2_core_in
 		programming->fams2_required = display_cfg->stage3.fams2_required;
 
 		dml2_core_calcs_get_global_fams2_programming(&core->clean_me_up.mode_lib, display_cfg, &programming->fams2_global_config);
+		programming->fams2_global_config.features.bits.enable = display_cfg->stage3.fams2_required;
 	}
 
 	// Only loop over all the main streams (the implicit svp streams will be packed as part of the main stream)

drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_dcn4_calcs.c

@@ -12221,12 +12221,19 @@ void dml2_core_calcs_get_global_fams2_programming(const struct dml2_core_interna
 		const struct display_configuation_with_meta *display_cfg,
 		struct dmub_cmd_fams2_global_config *fams2_global_config)
 {
-	fams2_global_config->max_allow_delay_us = mode_lib->ip_caps.fams2.max_allow_delay_us;
-	fams2_global_config->lock_wait_time_us = mode_lib->ip_caps.fams2.lock_timeout_us;
-	fams2_global_config->recovery_timeout_us = mode_lib->ip_caps.fams2.recovery_timeout_us;
-	fams2_global_config->hwfq_flip_programming_delay_us = mode_lib->ip_caps.fams2.flip_programming_delay_us;
+	fams2_global_config->features.bits.enable = display_cfg->stage3.fams2_required;
 
-	fams2_global_config->num_streams = display_cfg->display_config.num_streams;
+	if (fams2_global_config->features.bits.enable) {
+		fams2_global_config->features.bits.enable_stall_recovery = true;
+		fams2_global_config->features.bits.allow_delay_check_mode = FAMS2_ALLOW_DELAY_CHECK_FROM_START;
+
+		fams2_global_config->max_allow_delay_us = mode_lib->ip_caps.fams2.max_allow_delay_us;
+		fams2_global_config->lock_wait_time_us = mode_lib->ip_caps.fams2.lock_timeout_us;
+		fams2_global_config->recovery_timeout_us = mode_lib->ip_caps.fams2.recovery_timeout_us;
+		fams2_global_config->hwfq_flip_programming_delay_us = mode_lib->ip_caps.fams2.flip_programming_delay_us;
+
+		fams2_global_config->num_streams = display_cfg->display_config.num_streams;
+	}
 }
 
 void dml2_core_calcs_get_stream_fams2_programming(const struct dml2_core_internal_display_mode_lib *mode_lib,

drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c

@@ -1531,7 +1531,7 @@ void dcn401_fams2_update_config(struct dc *dc, struct dc_state *context, bool en
 	if (!dc->ctx || !dc->ctx->dmub_srv || !dc->debug.fams2_config.bits.enable)
 		return;
 
-	fams2_required = context->bw_ctx.bw.dcn.fams2_stream_count > 0;
+	fams2_required = context->bw_ctx.bw.dcn.fams2_global_config.features.bits.enable;
 
 	dc_dmub_srv_fams2_update_config(dc, context, enable && fams2_required);
 }
@@ -1656,7 +1656,7 @@ void dcn401_hardware_release(struct dc *dc)
 	 */
 	if (dc->current_state) {
 		if ((!dc->clk_mgr->clks.p_state_change_support ||
-				dc->current_state->bw_ctx.bw.dcn.fams2_stream_count > 0) &&
+				dc->current_state->bw_ctx.bw.dcn.fams2_global_config.features.bits.enable) &&
 				dc->res_pool->hubbub->funcs->force_pstate_change_control)
 			dc->res_pool->hubbub->funcs->force_pstate_change_control(
 					dc->res_pool->hubbub, true, true);

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

@@ -534,8 +534,8 @@ struct dcn_bw_output {
 	unsigned int legacy_svp_drr_stream_index;
 	bool legacy_svp_drr_stream_index_valid;
 	struct dml2_mcache_surface_allocation mcache_allocations[DML2_MAX_PLANES];
+	struct dmub_cmd_fams2_global_config fams2_global_config;
 	struct dmub_fams2_stream_static_state fams2_stream_params[DML2_MAX_PLANES];
-	unsigned fams2_stream_count;
 	struct dml2_display_arb_regs arb_regs;
 };