diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c | 329 |
1 files changed, 329 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c index 548c91ad1b82..ae63159e5d86 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c +++ b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c @@ -283,6 +283,335 @@ void dc_dmub_srv_query_caps_cmd(struct dmub_srv *dmub) } } +/** + * *********************************************************************************************** + * populate_subvp_cmd_drr_info: Helper to populate DRR pipe info for the DMCUB subvp command + * + * Populate the DMCUB SubVP command with DRR pipe info. All the information required for calculating + * the SubVP + DRR microschedule is populated here. + * + * High level algorithm: + * 1. Get timing for SubVP pipe, phantom pipe, and DRR pipe + * 2. Calculate the min and max vtotal which supports SubVP + DRR microschedule + * 3. Populate the drr_info with the min and max supported vtotal values + * + * @param [in] dc: current dc state + * @param [in] subvp_pipe: pipe_ctx for the SubVP pipe + * @param [in] vblank_pipe: pipe_ctx for the DRR pipe + * @param [in] pipe_data: Pipe data which stores the VBLANK/DRR info + * + * @return: void + * + * *********************************************************************************************** + */ +static void populate_subvp_cmd_drr_info(struct dc *dc, + struct pipe_ctx *subvp_pipe, + struct pipe_ctx *vblank_pipe, + struct dmub_cmd_fw_assisted_mclk_switch_pipe_data_v2 *pipe_data) +{ + struct dc_crtc_timing *main_timing = &subvp_pipe->stream->timing; + struct dc_crtc_timing *phantom_timing = &subvp_pipe->stream->mall_stream_config.paired_stream->timing; + struct dc_crtc_timing *drr_timing = &vblank_pipe->stream->timing; + int16_t drr_frame_us = 0; + int16_t min_drr_supported_us = 0; + int16_t max_drr_supported_us = 0; + int16_t max_drr_vblank_us = 0; + int16_t max_drr_mallregion_us = 0; + int16_t mall_region_us = 0; + int16_t prefetch_us = 0; + int16_t subvp_active_us = 0; + int16_t drr_active_us = 0; + int16_t min_vtotal_supported = 0; + int16_t max_vtotal_supported = 0; + + pipe_data->pipe_config.vblank_data.drr_info.drr_in_use = true; + pipe_data->pipe_config.vblank_data.drr_info.use_ramping = false; // for now don't use ramping + pipe_data->pipe_config.vblank_data.drr_info.drr_window_size_ms = 4; // hardcode 4ms DRR window for now + + drr_frame_us = drr_timing->v_total * drr_timing->h_total / + (double)(drr_timing->pix_clk_100hz * 100) * 1000000; + // P-State allow width and FW delays already included phantom_timing->v_addressable + mall_region_us = phantom_timing->v_addressable * phantom_timing->h_total / + (double)(phantom_timing->pix_clk_100hz * 100) * 1000000; + min_drr_supported_us = drr_frame_us + mall_region_us + SUBVP_DRR_MARGIN_US; + min_vtotal_supported = drr_timing->pix_clk_100hz * 100 * ((double)min_drr_supported_us / 1000000) / + (double)drr_timing->h_total; + + prefetch_us = (phantom_timing->v_total - phantom_timing->v_front_porch) * phantom_timing->h_total / + (double)(phantom_timing->pix_clk_100hz * 100) * 1000000 + + dc->caps.subvp_prefetch_end_to_mall_start_us; + subvp_active_us = main_timing->v_addressable * main_timing->h_total / + (double)(main_timing->pix_clk_100hz * 100) * 1000000; + drr_active_us = drr_timing->v_addressable * drr_timing->h_total / + (double)(drr_timing->pix_clk_100hz * 100) * 1000000; + max_drr_vblank_us = (double)(subvp_active_us - prefetch_us - drr_active_us) / 2 + drr_active_us; + max_drr_mallregion_us = subvp_active_us - prefetch_us - mall_region_us; + max_drr_supported_us = max_drr_vblank_us > max_drr_mallregion_us ? max_drr_vblank_us : max_drr_mallregion_us; + max_vtotal_supported = drr_timing->pix_clk_100hz * 100 * ((double)max_drr_supported_us / 1000000) / + (double)drr_timing->h_total; + + pipe_data->pipe_config.vblank_data.drr_info.min_vtotal_supported = min_vtotal_supported; + pipe_data->pipe_config.vblank_data.drr_info.max_vtotal_supported = max_vtotal_supported; +} + +/** + * *********************************************************************************************** + * populate_subvp_cmd_vblank_pipe_info: Helper to populate VBLANK pipe info for the DMUB subvp command + * + * Populate the DMCUB SubVP command with VBLANK pipe info. All the information required to calculate + * the microschedule for SubVP + VBLANK case is stored in the pipe_data (subvp_data and vblank_data). + * Also check if the VBLANK pipe is a DRR display -- if it is make a call to populate drr_info. + * + * @param [in] dc: current dc state + * @param [in] context: new dc state + * @param [in] cmd: DMUB cmd to be populated with SubVP info + * @param [in] vblank_pipe: pipe_ctx for the VBLANK pipe + * @param [in] cmd_pipe_index: index for the pipe array in DMCUB SubVP cmd + * + * @return: void + * + * *********************************************************************************************** + */ +static void populate_subvp_cmd_vblank_pipe_info(struct dc *dc, + struct dc_state *context, + union dmub_rb_cmd *cmd, + struct pipe_ctx *vblank_pipe, + uint8_t cmd_pipe_index) +{ + uint32_t i; + struct pipe_ctx *pipe = NULL; + struct dmub_cmd_fw_assisted_mclk_switch_pipe_data_v2 *pipe_data = + &cmd->fw_assisted_mclk_switch_v2.config_data.pipe_data[cmd_pipe_index]; + + // Find the SubVP pipe + for (i = 0; i < dc->res_pool->pipe_count; i++) { + pipe = &context->res_ctx.pipe_ctx[i]; + + // We check for master pipe, but it shouldn't matter since we only need + // the pipe for timing info (stream should be same for any pipe splits) + if (!pipe->stream || !pipe->plane_state || pipe->top_pipe || pipe->prev_odm_pipe) + continue; + + // Find the SubVP pipe + if (pipe->stream->mall_stream_config.type == SUBVP_MAIN) + break; + } + + pipe_data->mode = VBLANK; + pipe_data->pipe_config.vblank_data.pix_clk_100hz = vblank_pipe->stream->timing.pix_clk_100hz; + pipe_data->pipe_config.vblank_data.vblank_start = vblank_pipe->stream->timing.v_total - + vblank_pipe->stream->timing.v_front_porch; + pipe_data->pipe_config.vblank_data.vtotal = vblank_pipe->stream->timing.v_total; + pipe_data->pipe_config.vblank_data.htotal = vblank_pipe->stream->timing.h_total; + pipe_data->pipe_config.vblank_data.vblank_pipe_index = vblank_pipe->pipe_idx; + pipe_data->pipe_config.vblank_data.vstartup_start = vblank_pipe->pipe_dlg_param.vstartup_start; + pipe_data->pipe_config.vblank_data.vblank_end = + vblank_pipe->stream->timing.v_total - vblank_pipe->stream->timing.v_front_porch - vblank_pipe->stream->timing.v_addressable; + + if (vblank_pipe->stream->ignore_msa_timing_param) + populate_subvp_cmd_drr_info(dc, pipe, vblank_pipe, pipe_data); +} + +/** + * *********************************************************************************************** + * update_subvp_prefetch_end_to_mall_start: Helper for SubVP + SubVP case + * + * For SubVP + SubVP, we use a single vertical interrupt to start the microschedule for both + * SubVP pipes. In order for this to work correctly, the MALL REGION of both SubVP pipes must + * start at the same time. This function lengthens the prefetch end to mall start delay of the + * SubVP pipe that has the shorter prefetch so that both MALL REGION's will start at the same time. + * + * @param [in] dc: current dc state + * @param [in] context: new dc state + * @param [in] cmd: DMUB cmd to be populated with SubVP info + * @param [in] subvp_pipes: Array of SubVP pipes (should always be length 2) + * + * @return: void + * + * *********************************************************************************************** + */ +static void update_subvp_prefetch_end_to_mall_start(struct dc *dc, + struct dc_state *context, + union dmub_rb_cmd *cmd, + struct pipe_ctx *subvp_pipes[]) +{ + uint32_t subvp0_prefetch_us = 0; + uint32_t subvp1_prefetch_us = 0; + uint32_t prefetch_delta_us = 0; + struct dc_crtc_timing *phantom_timing0 = &subvp_pipes[0]->stream->mall_stream_config.paired_stream->timing; + struct dc_crtc_timing *phantom_timing1 = &subvp_pipes[1]->stream->mall_stream_config.paired_stream->timing; + struct dmub_cmd_fw_assisted_mclk_switch_pipe_data_v2 *pipe_data = NULL; + + subvp0_prefetch_us = (phantom_timing0->v_total - phantom_timing0->v_front_porch) * phantom_timing0->h_total / + (double)(phantom_timing0->pix_clk_100hz * 100) * 1000000 + dc->caps.subvp_prefetch_end_to_mall_start_us; + subvp1_prefetch_us = (phantom_timing1->v_total - phantom_timing1->v_front_porch) * phantom_timing1->h_total / + (double)(phantom_timing1->pix_clk_100hz * 100) * 1000000 + dc->caps.subvp_prefetch_end_to_mall_start_us; + + // Whichever SubVP PIPE has the smaller prefetch (including the prefetch end to mall start time) + // should increase it's prefetch time to match the other + if (subvp0_prefetch_us > subvp1_prefetch_us) { + pipe_data = &cmd->fw_assisted_mclk_switch_v2.config_data.pipe_data[1]; + prefetch_delta_us = subvp0_prefetch_us - subvp1_prefetch_us; + pipe_data->pipe_config.subvp_data.prefetch_to_mall_start_lines = + (((double)(dc->caps.subvp_prefetch_end_to_mall_start_us + prefetch_delta_us) / 1000000) * + (phantom_timing1->pix_clk_100hz * 100) + phantom_timing1->h_total - 1) / + (double)phantom_timing1->h_total; + } else if (subvp1_prefetch_us > subvp0_prefetch_us) { + pipe_data = &cmd->fw_assisted_mclk_switch_v2.config_data.pipe_data[0]; + prefetch_delta_us = subvp1_prefetch_us - subvp0_prefetch_us; + pipe_data->pipe_config.subvp_data.prefetch_to_mall_start_lines = + (((double)(dc->caps.subvp_prefetch_end_to_mall_start_us + prefetch_delta_us) / 1000000) * + (phantom_timing0->pix_clk_100hz * 100) + phantom_timing0->h_total - 1) / + (double)phantom_timing0->h_total; + } +} + +/** + * *************************************************************************************** + * setup_subvp_dmub_command: Helper to populate the SubVP pipe info for the DMUB subvp command + * + * Populate the DMCUB SubVP command with SubVP pipe info. All the information required to + * calculate the microschedule for the SubVP pipe is stored in the pipe_data of the DMCUB + * SubVP command. + * + * @param [in] dc: current dc state + * @param [in] context: new dc state + * @param [in] cmd: DMUB cmd to be populated with SubVP info + * @param [in] subvp_pipe: pipe_ctx for the SubVP pipe + * @param [in] cmd_pipe_index: index for the pipe array in DMCUB SubVP cmd + * + * @return: void + * + * *************************************************************************************** + */ +static void populate_subvp_cmd_pipe_info(struct dc *dc, + struct dc_state *context, + union dmub_rb_cmd *cmd, + struct pipe_ctx *subvp_pipe, + uint8_t cmd_pipe_index) +{ + uint32_t j; + struct dmub_cmd_fw_assisted_mclk_switch_pipe_data_v2 *pipe_data = + &cmd->fw_assisted_mclk_switch_v2.config_data.pipe_data[cmd_pipe_index]; + struct dc_crtc_timing *main_timing = &subvp_pipe->stream->timing; + struct dc_crtc_timing *phantom_timing = &subvp_pipe->stream->mall_stream_config.paired_stream->timing; + + pipe_data->mode = SUBVP; + pipe_data->pipe_config.subvp_data.pix_clk_100hz = subvp_pipe->stream->timing.pix_clk_100hz; + pipe_data->pipe_config.subvp_data.htotal = subvp_pipe->stream->timing.h_total; + pipe_data->pipe_config.subvp_data.vtotal = subvp_pipe->stream->timing.v_total; + pipe_data->pipe_config.subvp_data.main_vblank_start = + main_timing->v_total - main_timing->v_front_porch; + pipe_data->pipe_config.subvp_data.main_vblank_end = + main_timing->v_total - main_timing->v_front_porch - main_timing->v_addressable; + pipe_data->pipe_config.subvp_data.mall_region_lines = phantom_timing->v_addressable; + pipe_data->pipe_config.subvp_data.main_pipe_index = subvp_pipe->pipe_idx; + + // Prefetch lines is equal to VACTIVE + BP + VSYNC + pipe_data->pipe_config.subvp_data.prefetch_lines = + phantom_timing->v_total - phantom_timing->v_front_porch; + + // Round up + pipe_data->pipe_config.subvp_data.prefetch_to_mall_start_lines = + (((double)dc->caps.subvp_prefetch_end_to_mall_start_us / 1000000) * + (phantom_timing->pix_clk_100hz * 100) + phantom_timing->h_total - 1) / + (double)phantom_timing->h_total; + pipe_data->pipe_config.subvp_data.processing_delay_lines = + (((double)dc->caps.subvp_fw_processing_delay_us / 1000000) * + (phantom_timing->pix_clk_100hz * 100) + phantom_timing->h_total - 1) / + (double)phantom_timing->h_total; + // Find phantom pipe index based on phantom stream + for (j = 0; j < dc->res_pool->pipe_count; j++) { + struct pipe_ctx *phantom_pipe = &context->res_ctx.pipe_ctx[j]; + + if (phantom_pipe->stream == subvp_pipe->stream->mall_stream_config.paired_stream) { + pipe_data->pipe_config.subvp_data.phantom_pipe_index = phantom_pipe->pipe_idx; + break; + } + } +} + +/** + * *************************************************************************************** + * dc_dmub_setup_subvp_dmub_command: Populate the DMCUB SubVP command + * + * This function loops through each pipe and populates the DMUB + * SubVP CMD info based on the pipe (e.g. SubVP, VBLANK). + * + * @param [in] dc: current dc state + * @param [in] context: new dc state + * @param [in] cmd: DMUB cmd to be populated with SubVP info + * + * @return: void + * + * *************************************************************************************** + */ +void dc_dmub_setup_subvp_dmub_command(struct dc *dc, + struct dc_state *context, + bool enable) +{ + uint8_t cmd_pipe_index = 0; + uint32_t i, pipe_idx; + uint8_t subvp_count = 0; + union dmub_rb_cmd cmd; + struct pipe_ctx *subvp_pipes[2]; + uint32_t wm_val_refclk = 0; + + memset(&cmd, 0, sizeof(cmd)); + // FW command for SUBVP + cmd.fw_assisted_mclk_switch_v2.header.type = DMUB_CMD__FW_ASSISTED_MCLK_SWITCH; + cmd.fw_assisted_mclk_switch_v2.header.sub_type = DMUB_CMD__HANDLE_SUBVP_CMD; + cmd.fw_assisted_mclk_switch_v2.header.payload_bytes = + sizeof(cmd.fw_assisted_mclk_switch_v2) - sizeof(cmd.fw_assisted_mclk_switch_v2.header); + + 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->plane_state && !pipe->top_pipe && + pipe->stream->mall_stream_config.type == SUBVP_MAIN) + subvp_pipes[subvp_count++] = pipe; + } + + if (enable) { + // For each pipe that is a "main" SUBVP pipe, fill in pipe data for DMUB SUBVP cmd + for (i = 0, pipe_idx = 0; i < dc->res_pool->pipe_count; i++) { + struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i]; + + if (!pipe->stream) + continue; + + if (pipe->plane_state && pipe->stream->mall_stream_config.paired_stream && + pipe->stream->mall_stream_config.type == SUBVP_MAIN) { + populate_subvp_cmd_pipe_info(dc, context, &cmd, pipe, cmd_pipe_index++); + } else if (pipe->plane_state && pipe->stream->mall_stream_config.type == SUBVP_NONE) { + // Don't need to check for ActiveDRAMClockChangeMargin < 0, not valid in cases where + // we run through DML without calculating "natural" P-state support + populate_subvp_cmd_vblank_pipe_info(dc, context, &cmd, pipe, cmd_pipe_index++); + + } + pipe_idx++; + } + if (subvp_count == 2) { + update_subvp_prefetch_end_to_mall_start(dc, context, &cmd, subvp_pipes); + } + cmd.fw_assisted_mclk_switch_v2.config_data.pstate_allow_width_us = dc->caps.subvp_pstate_allow_width_us; + cmd.fw_assisted_mclk_switch_v2.config_data.vertical_int_margin_us = dc->caps.subvp_vertical_int_margin_us; + + // Store the original watermark value for this SubVP config so we can lower it when the + // MCLK switch starts + wm_val_refclk = context->bw_ctx.bw.dcn.watermarks.a.cstate_pstate.pstate_change_ns * + dc->res_pool->ref_clocks.dchub_ref_clock_inKhz / 1000 / 1000; + + cmd.fw_assisted_mclk_switch_v2.config_data.watermark_a_cache = wm_val_refclk < 0xFFFF ? wm_val_refclk : 0xFFFF; + } + dc_dmub_srv_cmd_queue(dc->ctx->dmub_srv, &cmd); + dc_dmub_srv_cmd_execute(dc->ctx->dmub_srv); + dc_dmub_srv_wait_idle(dc->ctx->dmub_srv); +} + bool dc_dmub_srv_get_diagnostic_data(struct dc_dmub_srv *dc_dmub_srv, struct dmub_diagnostic_data *diag_data) { if (!dc_dmub_srv || !dc_dmub_srv->dmub || !diag_data) |