diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c | 453 |
1 files changed, 453 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c new file mode 100644 index 000000000..fa3778849 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c @@ -0,0 +1,453 @@ +/* + * Copyright 2022 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 + * + */ + +// header file of functions being implemented +#include "dcn32_resource.h" +#include "dcn20/dcn20_resource.h" +#include "dml/dcn32/display_mode_vba_util_32.h" + +static bool is_dual_plane(enum surface_pixel_format format) +{ + return format >= SURFACE_PIXEL_FORMAT_VIDEO_BEGIN || format == SURFACE_PIXEL_FORMAT_GRPH_RGBE_ALPHA; +} + +/** + * ******************************************************************************************** + * dcn32_helper_calculate_num_ways_for_subvp: Calculate number of ways needed for SubVP + * + * This function first checks the bytes required per pixel on the SubVP pipe, then calculates + * the total number of pixels required in the SubVP MALL region. These are used to calculate + * the number of cache lines used (then number of ways required) for SubVP MCLK switching. + * + * @param [in] dc: current dc state + * @param [in] context: new dc state + * + * @return: number of ways required for SubVP + * + * ******************************************************************************************** + */ +uint32_t dcn32_helper_calculate_num_ways_for_subvp(struct dc *dc, struct dc_state *context) +{ + uint32_t num_ways = 0; + uint32_t bytes_per_pixel = 0; + uint32_t cache_lines_used = 0; + uint32_t lines_per_way = 0; + uint32_t total_cache_lines = 0; + uint32_t bytes_in_mall = 0; + uint32_t num_mblks = 0; + uint32_t cache_lines_per_plane = 0; + uint32_t i = 0, j = 0; + uint16_t mblk_width = 0; + uint16_t mblk_height = 0; + uint32_t full_vp_width_blk_aligned = 0; + uint32_t full_vp_height_blk_aligned = 0; + uint32_t mall_alloc_width_blk_aligned = 0; + uint32_t mall_alloc_height_blk_aligned = 0; + uint16_t full_vp_height = 0; + bool subvp_in_use = false; + + for (i = 0; i < dc->res_pool->pipe_count; i++) { + struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i]; + + /* Find the phantom pipes. + * - For pipe split case we need to loop through the bottom and next ODM + * pipes or only half the viewport size is counted + */ + if (pipe->stream && pipe->plane_state && + pipe->stream->mall_stream_config.type == SUBVP_PHANTOM) { + struct pipe_ctx *main_pipe = NULL; + + subvp_in_use = true; + /* Get full viewport height from main pipe (required for MBLK calculation) */ + for (j = 0; j < dc->res_pool->pipe_count; j++) { + main_pipe = &context->res_ctx.pipe_ctx[j]; + if (main_pipe->stream == pipe->stream->mall_stream_config.paired_stream) { + full_vp_height = main_pipe->plane_res.scl_data.viewport.height; + break; + } + } + + bytes_per_pixel = pipe->plane_state->format >= SURFACE_PIXEL_FORMAT_GRPH_ARGB16161616 ? 8 : 4; + mblk_width = DCN3_2_MBLK_WIDTH; + mblk_height = bytes_per_pixel == 4 ? DCN3_2_MBLK_HEIGHT_4BPE : DCN3_2_MBLK_HEIGHT_8BPE; + + /* full_vp_width_blk_aligned = FLOOR(vp_x_start + full_vp_width + blk_width - 1, blk_width) - + * FLOOR(vp_x_start, blk_width) + */ + full_vp_width_blk_aligned = ((pipe->plane_res.scl_data.viewport.x + + pipe->plane_res.scl_data.viewport.width + mblk_width - 1) / mblk_width * mblk_width) + + (pipe->plane_res.scl_data.viewport.x / mblk_width * mblk_width); + + /* full_vp_height_blk_aligned = FLOOR(vp_y_start + full_vp_height + blk_height - 1, blk_height) - + * FLOOR(vp_y_start, blk_height) + */ + full_vp_height_blk_aligned = ((pipe->plane_res.scl_data.viewport.y + + full_vp_height + mblk_height - 1) / mblk_height * mblk_height) + + (pipe->plane_res.scl_data.viewport.y / mblk_height * mblk_height); + + /* mall_alloc_width_blk_aligned_l/c = full_vp_width_blk_aligned_l/c */ + mall_alloc_width_blk_aligned = full_vp_width_blk_aligned; + + /* mall_alloc_height_blk_aligned_l/c = CEILING(sub_vp_height_l/c - 1, blk_height_l/c) + blk_height_l/c */ + mall_alloc_height_blk_aligned = (pipe->plane_res.scl_data.viewport.height - 1 + mblk_height - 1) / + mblk_height * mblk_height + mblk_height; + + /* full_mblk_width_ub_l/c = mall_alloc_width_blk_aligned_l/c; + * full_mblk_height_ub_l/c = mall_alloc_height_blk_aligned_l/c; + * num_mblk_l/c = (full_mblk_width_ub_l/c / mblk_width_l/c) * (full_mblk_height_ub_l/c / mblk_height_l/c); + * (Should be divisible, but round up if not) + */ + num_mblks = ((mall_alloc_width_blk_aligned + mblk_width - 1) / mblk_width) * + ((mall_alloc_height_blk_aligned + mblk_height - 1) / mblk_height); + bytes_in_mall = num_mblks * DCN3_2_MALL_MBLK_SIZE_BYTES; + // cache lines used is total bytes / cache_line size. Add +2 for worst case alignment + // (MALL is 64-byte aligned) + cache_lines_per_plane = bytes_in_mall / dc->caps.cache_line_size + 2; + + /* For DCC divide by 256 */ + if (pipe->plane_state->dcc.enable) + cache_lines_per_plane = cache_lines_per_plane + (cache_lines_per_plane / 256) + 1; + cache_lines_used += cache_lines_per_plane; + } + } + + total_cache_lines = dc->caps.max_cab_allocation_bytes / dc->caps.cache_line_size; + lines_per_way = total_cache_lines / dc->caps.cache_num_ways; + num_ways = cache_lines_used / lines_per_way; + if (cache_lines_used % lines_per_way > 0) + num_ways++; + + if (subvp_in_use && dc->debug.force_subvp_num_ways > 0) + num_ways = dc->debug.force_subvp_num_ways; + + return num_ways; +} + +void dcn32_merge_pipes_for_subvp(struct dc *dc, + struct dc_state *context) +{ + uint32_t i; + + /* merge pipes if necessary */ + for (i = 0; i < dc->res_pool->pipe_count; i++) { + struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i]; + + // For now merge all pipes for SubVP since pipe split case isn't supported yet + + /* if ODM merge we ignore mpc tree, mpo pipes will have their own flags */ + if (pipe->prev_odm_pipe) { + /*split off odm pipe*/ + pipe->prev_odm_pipe->next_odm_pipe = pipe->next_odm_pipe; + if (pipe->next_odm_pipe) + pipe->next_odm_pipe->prev_odm_pipe = pipe->prev_odm_pipe; + + pipe->bottom_pipe = NULL; + pipe->next_odm_pipe = NULL; + pipe->plane_state = NULL; + pipe->stream = NULL; + pipe->top_pipe = NULL; + pipe->prev_odm_pipe = NULL; + if (pipe->stream_res.dsc) + dcn20_release_dsc(&context->res_ctx, dc->res_pool, &pipe->stream_res.dsc); + memset(&pipe->plane_res, 0, sizeof(pipe->plane_res)); + memset(&pipe->stream_res, 0, sizeof(pipe->stream_res)); + } else if (pipe->top_pipe && pipe->top_pipe->plane_state == pipe->plane_state) { + struct pipe_ctx *top_pipe = pipe->top_pipe; + struct pipe_ctx *bottom_pipe = pipe->bottom_pipe; + + top_pipe->bottom_pipe = bottom_pipe; + if (bottom_pipe) + bottom_pipe->top_pipe = top_pipe; + + pipe->top_pipe = NULL; + pipe->bottom_pipe = NULL; + pipe->plane_state = NULL; + pipe->stream = NULL; + memset(&pipe->plane_res, 0, sizeof(pipe->plane_res)); + memset(&pipe->stream_res, 0, sizeof(pipe->stream_res)); + } + } +} + +bool dcn32_all_pipes_have_stream_and_plane(struct dc *dc, + struct dc_state *context) +{ + uint32_t i; + + 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) + return false; + } + return true; +} + +bool dcn32_subvp_in_use(struct dc *dc, + struct dc_state *context) +{ + uint32_t i; + + for (i = 0; i < dc->res_pool->pipe_count; i++) { + struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i]; + + if (pipe->stream && pipe->stream->mall_stream_config.type != SUBVP_NONE) + return true; + } + return false; +} + +bool dcn32_mpo_in_use(struct dc_state *context) +{ + uint32_t i; + + for (i = 0; i < context->stream_count; i++) { + if (context->stream_status[i].plane_count > 1) + return true; + } + return false; +} + + +bool dcn32_any_surfaces_rotated(struct dc *dc, struct dc_state *context) +{ + uint32_t i; + + 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->plane_state->rotation != ROTATION_ANGLE_0) + return true; + } + return false; +} + +/** + * ******************************************************************************************* + * dcn32_determine_det_override: Determine DET allocation for each pipe + * + * This function determines how much DET to allocate for each pipe. The total number of + * DET segments will be split equally among each of the streams, and after that the DET + * segments per stream will be split equally among the planes for the given stream. + * + * If there is a plane that's driven by more than 1 pipe (i.e. pipe split), then the + * number of DET for that given plane will be split among the pipes driving that plane. + * + * + * High level algorithm: + * 1. Split total DET among number of streams + * 2. For each stream, split DET among the planes + * 3. For each plane, check if there is a pipe split. If yes, split the DET allocation + * among those pipes. + * 4. Assign the DET override to the DML pipes. + * + * @param [in]: dc: Current DC state + * @param [in]: context: New DC state to be programmed + * @param [in]: pipes: Array of DML pipes + * + * @return: void + * + * ******************************************************************************************* + */ +void dcn32_determine_det_override(struct dc *dc, + struct dc_state *context, + display_e2e_pipe_params_st *pipes) +{ + uint32_t i, j, k; + uint8_t pipe_plane_count, stream_segments, plane_segments, pipe_segments[MAX_PIPES] = {0}; + uint8_t pipe_counted[MAX_PIPES] = {0}; + uint8_t pipe_cnt = 0; + struct dc_plane_state *current_plane = NULL; + uint8_t stream_count = 0; + + for (i = 0; i < context->stream_count; i++) { + /* Don't count SubVP streams for DET allocation */ + if (context->streams[i]->mall_stream_config.type != SUBVP_PHANTOM) { + stream_count++; + } + } + + if (stream_count > 0) { + stream_segments = 18 / stream_count; + for (i = 0; i < context->stream_count; i++) { + if (context->streams[i]->mall_stream_config.type == SUBVP_PHANTOM) + continue; + if (context->stream_status[i].plane_count > 0) + plane_segments = stream_segments / context->stream_status[i].plane_count; + else + plane_segments = stream_segments; + for (j = 0; j < dc->res_pool->pipe_count; j++) { + pipe_plane_count = 0; + if (context->res_ctx.pipe_ctx[j].stream == context->streams[i] && + pipe_counted[j] != 1) { + /* Note: pipe_plane_count indicates the number of pipes to be used for a + * given plane. e.g. pipe_plane_count = 1 means single pipe (i.e. not split), + * pipe_plane_count = 2 means 2:1 split, etc. + */ + pipe_plane_count++; + pipe_counted[j] = 1; + current_plane = context->res_ctx.pipe_ctx[j].plane_state; + for (k = 0; k < dc->res_pool->pipe_count; k++) { + if (k != j && context->res_ctx.pipe_ctx[k].stream == context->streams[i] && + context->res_ctx.pipe_ctx[k].plane_state == current_plane) { + pipe_plane_count++; + pipe_counted[k] = 1; + } + } + + pipe_segments[j] = plane_segments / pipe_plane_count; + for (k = 0; k < dc->res_pool->pipe_count; k++) { + if (k != j && context->res_ctx.pipe_ctx[k].stream == context->streams[i] && + context->res_ctx.pipe_ctx[k].plane_state == current_plane) { + pipe_segments[k] = plane_segments / pipe_plane_count; + } + } + } + } + } + + for (i = 0, pipe_cnt = 0; i < dc->res_pool->pipe_count; i++) { + if (!context->res_ctx.pipe_ctx[i].stream) + continue; + pipes[pipe_cnt].pipe.src.det_size_override = pipe_segments[i] * DCN3_2_DET_SEG_SIZE; + pipe_cnt++; + } + } else { + for (i = 0; i < dc->res_pool->pipe_count; i++) + pipes[i].pipe.src.det_size_override = 4 * DCN3_2_DET_SEG_SIZE; //DCN3_2_DEFAULT_DET_SIZE + } +} + +void dcn32_set_det_allocations(struct dc *dc, struct dc_state *context, + display_e2e_pipe_params_st *pipes) +{ + int i, pipe_cnt; + struct resource_context *res_ctx = &context->res_ctx; + struct pipe_ctx *pipe; + + for (i = 0, pipe_cnt = 0; i < dc->res_pool->pipe_count; i++) { + + if (!res_ctx->pipe_ctx[i].stream) + continue; + + pipe = &res_ctx->pipe_ctx[i]; + pipe_cnt++; + } + + /* For DET allocation, we don't want to use DML policy (not optimal for utilizing all + * the DET available for each pipe). Use the DET override input to maintain our driver + * policy. + */ + if (pipe_cnt == 1) { + pipes[0].pipe.src.det_size_override = DCN3_2_MAX_DET_SIZE; + if (pipe->plane_state && !dc->debug.disable_z9_mpc && pipe->plane_state->tiling_info.gfx9.swizzle != DC_SW_LINEAR) { + if (!is_dual_plane(pipe->plane_state->format)) { + pipes[0].pipe.src.det_size_override = DCN3_2_DEFAULT_DET_SIZE; + pipes[0].pipe.src.unbounded_req_mode = true; + if (pipe->plane_state->src_rect.width >= 5120 && + pipe->plane_state->src_rect.height >= 2880) + pipes[0].pipe.src.det_size_override = 320; // 5K or higher + } + } + } else + dcn32_determine_det_override(dc, context, pipes); +} + +/** + * ******************************************************************************************* + * dcn32_save_mall_state: Save MALL (SubVP) state for fast validation cases + * + * This function saves the MALL (SubVP) case for fast validation cases. For fast validation, + * there are situations where a shallow copy of the dc->current_state is created for the + * validation. In this case we want to save and restore the mall config because we always + * teardown subvp at the beginning of validation (and don't attempt to add it back if it's + * fast validation). If we don't restore the subvp config in cases of fast validation + + * shallow copy of the dc->current_state, the dc->current_state will have a partially + * removed subvp state when we did not intend to remove it. + * + * NOTE: This function ONLY works if the streams are not moved to a different pipe in the + * validation. We don't expect this to happen in fast_validation=1 cases. + * + * @param [in]: dc: Current DC state + * @param [in]: context: New DC state to be programmed + * @param [out]: temp_config: struct used to cache the existing MALL state + * + * @return: void + * + * ******************************************************************************************* + */ +void dcn32_save_mall_state(struct dc *dc, + struct dc_state *context, + struct mall_temp_config *temp_config) +{ + uint32_t i; + + for (i = 0; i < dc->res_pool->pipe_count; i++) { + struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i]; + + if (pipe->stream) + temp_config->mall_stream_config[i] = pipe->stream->mall_stream_config; + + if (pipe->plane_state) + temp_config->is_phantom_plane[i] = pipe->plane_state->is_phantom; + } +} + +/** + * ******************************************************************************************* + * dcn32_restore_mall_state: Restore MALL (SubVP) state for fast validation cases + * + * Restore the MALL state based on the previously saved state from dcn32_save_mall_state + * + * @param [in]: dc: Current DC state + * @param [in/out]: context: New DC state to be programmed, restore MALL state into here + * @param [in]: temp_config: struct that has the cached MALL state + * + * @return: void + * + * ******************************************************************************************* + */ +void dcn32_restore_mall_state(struct dc *dc, + struct dc_state *context, + struct mall_temp_config *temp_config) +{ + uint32_t i; + + for (i = 0; i < dc->res_pool->pipe_count; i++) { + struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i]; + + if (pipe->stream) + pipe->stream->mall_stream_config = temp_config->mall_stream_config[i]; + + if (pipe->plane_state) + pipe->plane_state->is_phantom = temp_config->is_phantom_plane[i]; + } +} |