File: | dev/pci/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c |
Warning: | line 106, column 4 Value stored to 'full_vp_height_blk_aligned' is never read |
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1 | /* |
2 | * Copyright 2022 Advanced Micro Devices, Inc. |
3 | * |
4 | * Permission is hereby granted, free of charge, to any person obtaining a |
5 | * copy of this software and associated documentation files (the "Software"), |
6 | * to deal in the Software without restriction, including without limitation |
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
8 | * and/or sell copies of the Software, and to permit persons to whom the |
9 | * Software is furnished to do so, subject to the following conditions: |
10 | * |
11 | * The above copyright notice and this permission notice shall be included in |
12 | * all copies or substantial portions of the Software. |
13 | * |
14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
17 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
18 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
20 | * OTHER DEALINGS IN THE SOFTWARE. |
21 | * |
22 | * Authors: AMD |
23 | * |
24 | */ |
25 | |
26 | // header file of functions being implemented |
27 | #include "dcn32_resource.h" |
28 | #include "dcn20/dcn20_resource.h" |
29 | #include "dml/dcn32/display_mode_vba_util_32.h" |
30 | |
31 | static bool_Bool is_dual_plane(enum surface_pixel_format format) |
32 | { |
33 | return format >= SURFACE_PIXEL_FORMAT_VIDEO_BEGIN || format == SURFACE_PIXEL_FORMAT_GRPH_RGBE_ALPHA; |
34 | } |
35 | |
36 | /** |
37 | * ******************************************************************************************** |
38 | * dcn32_helper_calculate_num_ways_for_subvp: Calculate number of ways needed for SubVP |
39 | * |
40 | * This function first checks the bytes required per pixel on the SubVP pipe, then calculates |
41 | * the total number of pixels required in the SubVP MALL region. These are used to calculate |
42 | * the number of cache lines used (then number of ways required) for SubVP MCLK switching. |
43 | * |
44 | * @param [in] dc: current dc state |
45 | * @param [in] context: new dc state |
46 | * |
47 | * @return: number of ways required for SubVP |
48 | * |
49 | * ******************************************************************************************** |
50 | */ |
51 | uint32_t dcn32_helper_calculate_num_ways_for_subvp(struct dc *dc, struct dc_state *context) |
52 | { |
53 | uint32_t num_ways = 0; |
54 | uint32_t bytes_per_pixel = 0; |
55 | uint32_t cache_lines_used = 0; |
56 | uint32_t lines_per_way = 0; |
57 | uint32_t total_cache_lines = 0; |
58 | uint32_t bytes_in_mall = 0; |
59 | uint32_t num_mblks = 0; |
60 | uint32_t cache_lines_per_plane = 0; |
61 | uint32_t i = 0, j = 0; |
62 | uint16_t mblk_width = 0; |
63 | uint16_t mblk_height = 0; |
64 | uint32_t full_vp_width_blk_aligned = 0; |
65 | uint32_t full_vp_height_blk_aligned = 0; |
66 | uint32_t mall_alloc_width_blk_aligned = 0; |
67 | uint32_t mall_alloc_height_blk_aligned = 0; |
68 | uint16_t full_vp_height = 0; |
69 | bool_Bool subvp_in_use = false0; |
70 | |
71 | for (i = 0; i < dc->res_pool->pipe_count; i++) { |
72 | struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i]; |
73 | |
74 | /* Find the phantom pipes. |
75 | * - For pipe split case we need to loop through the bottom and next ODM |
76 | * pipes or only half the viewport size is counted |
77 | */ |
78 | if (pipe->stream && pipe->plane_state && |
79 | pipe->stream->mall_stream_config.type == SUBVP_PHANTOM) { |
80 | struct pipe_ctx *main_pipe = NULL((void *)0); |
81 | |
82 | subvp_in_use = true1; |
83 | /* Get full viewport height from main pipe (required for MBLK calculation) */ |
84 | for (j = 0; j < dc->res_pool->pipe_count; j++) { |
85 | main_pipe = &context->res_ctx.pipe_ctx[j]; |
86 | if (main_pipe->stream == pipe->stream->mall_stream_config.paired_stream) { |
87 | full_vp_height = main_pipe->plane_res.scl_data.viewport.height; |
88 | break; |
89 | } |
90 | } |
91 | |
92 | bytes_per_pixel = pipe->plane_state->format >= SURFACE_PIXEL_FORMAT_GRPH_ARGB16161616 ? 8 : 4; |
93 | mblk_width = DCN3_2_MBLK_WIDTH128; |
94 | mblk_height = bytes_per_pixel == 4 ? DCN3_2_MBLK_HEIGHT_4BPE128 : DCN3_2_MBLK_HEIGHT_8BPE64; |
95 | |
96 | /* full_vp_width_blk_aligned = FLOOR(vp_x_start + full_vp_width + blk_width - 1, blk_width) - |
97 | * FLOOR(vp_x_start, blk_width) |
98 | */ |
99 | full_vp_width_blk_aligned = ((pipe->plane_res.scl_data.viewport.x + |
100 | pipe->plane_res.scl_data.viewport.width + mblk_width - 1) / mblk_width * mblk_width) + |
101 | (pipe->plane_res.scl_data.viewport.x / mblk_width * mblk_width); |
102 | |
103 | /* full_vp_height_blk_aligned = FLOOR(vp_y_start + full_vp_height + blk_height - 1, blk_height) - |
104 | * FLOOR(vp_y_start, blk_height) |
105 | */ |
106 | full_vp_height_blk_aligned = ((pipe->plane_res.scl_data.viewport.y + |
Value stored to 'full_vp_height_blk_aligned' is never read | |
107 | full_vp_height + mblk_height - 1) / mblk_height * mblk_height) + |
108 | (pipe->plane_res.scl_data.viewport.y / mblk_height * mblk_height); |
109 | |
110 | /* mall_alloc_width_blk_aligned_l/c = full_vp_width_blk_aligned_l/c */ |
111 | mall_alloc_width_blk_aligned = full_vp_width_blk_aligned; |
112 | |
113 | /* mall_alloc_height_blk_aligned_l/c = CEILING(sub_vp_height_l/c - 1, blk_height_l/c) + blk_height_l/c */ |
114 | mall_alloc_height_blk_aligned = (pipe->plane_res.scl_data.viewport.height - 1 + mblk_height - 1) / |
115 | mblk_height * mblk_height + mblk_height; |
116 | |
117 | /* full_mblk_width_ub_l/c = mall_alloc_width_blk_aligned_l/c; |
118 | * full_mblk_height_ub_l/c = mall_alloc_height_blk_aligned_l/c; |
119 | * num_mblk_l/c = (full_mblk_width_ub_l/c / mblk_width_l/c) * (full_mblk_height_ub_l/c / mblk_height_l/c); |
120 | * (Should be divisible, but round up if not) |
121 | */ |
122 | num_mblks = ((mall_alloc_width_blk_aligned + mblk_width - 1) / mblk_width) * |
123 | ((mall_alloc_height_blk_aligned + mblk_height - 1) / mblk_height); |
124 | bytes_in_mall = num_mblks * DCN3_2_MALL_MBLK_SIZE_BYTES65536; |
125 | // cache lines used is total bytes / cache_line size. Add +2 for worst case alignment |
126 | // (MALL is 64-byte aligned) |
127 | cache_lines_per_plane = bytes_in_mall / dc->caps.cache_line_size + 2; |
128 | |
129 | /* For DCC divide by 256 */ |
130 | if (pipe->plane_state->dcc.enable) |
131 | cache_lines_per_plane = cache_lines_per_plane + (cache_lines_per_plane / 256) + 1; |
132 | cache_lines_used += cache_lines_per_plane; |
133 | } |
134 | } |
135 | |
136 | total_cache_lines = dc->caps.max_cab_allocation_bytes / dc->caps.cache_line_size; |
137 | lines_per_way = total_cache_lines / dc->caps.cache_num_ways; |
138 | num_ways = cache_lines_used / lines_per_way; |
139 | if (cache_lines_used % lines_per_way > 0) |
140 | num_ways++; |
141 | |
142 | if (subvp_in_use && dc->debug.force_subvp_num_ways > 0) |
143 | num_ways = dc->debug.force_subvp_num_ways; |
144 | |
145 | return num_ways; |
146 | } |
147 | |
148 | void dcn32_merge_pipes_for_subvp(struct dc *dc, |
149 | struct dc_state *context) |
150 | { |
151 | uint32_t i; |
152 | |
153 | /* merge pipes if necessary */ |
154 | for (i = 0; i < dc->res_pool->pipe_count; i++) { |
155 | struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i]; |
156 | |
157 | // For now merge all pipes for SubVP since pipe split case isn't supported yet |
158 | |
159 | /* if ODM merge we ignore mpc tree, mpo pipes will have their own flags */ |
160 | if (pipe->prev_odm_pipe) { |
161 | /*split off odm pipe*/ |
162 | pipe->prev_odm_pipe->next_odm_pipe = pipe->next_odm_pipe; |
163 | if (pipe->next_odm_pipe) |
164 | pipe->next_odm_pipe->prev_odm_pipe = pipe->prev_odm_pipe; |
165 | |
166 | pipe->bottom_pipe = NULL((void *)0); |
167 | pipe->next_odm_pipe = NULL((void *)0); |
168 | pipe->plane_state = NULL((void *)0); |
169 | pipe->stream = NULL((void *)0); |
170 | pipe->top_pipe = NULL((void *)0); |
171 | pipe->prev_odm_pipe = NULL((void *)0); |
172 | if (pipe->stream_res.dsc) |
173 | dcn20_release_dsc(&context->res_ctx, dc->res_pool, &pipe->stream_res.dsc); |
174 | memset(&pipe->plane_res, 0, sizeof(pipe->plane_res))__builtin_memset((&pipe->plane_res), (0), (sizeof(pipe ->plane_res))); |
175 | memset(&pipe->stream_res, 0, sizeof(pipe->stream_res))__builtin_memset((&pipe->stream_res), (0), (sizeof(pipe ->stream_res))); |
176 | } else if (pipe->top_pipe && pipe->top_pipe->plane_state == pipe->plane_state) { |
177 | struct pipe_ctx *top_pipe = pipe->top_pipe; |
178 | struct pipe_ctx *bottom_pipe = pipe->bottom_pipe; |
179 | |
180 | top_pipe->bottom_pipe = bottom_pipe; |
181 | if (bottom_pipe) |
182 | bottom_pipe->top_pipe = top_pipe; |
183 | |
184 | pipe->top_pipe = NULL((void *)0); |
185 | pipe->bottom_pipe = NULL((void *)0); |
186 | pipe->plane_state = NULL((void *)0); |
187 | pipe->stream = NULL((void *)0); |
188 | memset(&pipe->plane_res, 0, sizeof(pipe->plane_res))__builtin_memset((&pipe->plane_res), (0), (sizeof(pipe ->plane_res))); |
189 | memset(&pipe->stream_res, 0, sizeof(pipe->stream_res))__builtin_memset((&pipe->stream_res), (0), (sizeof(pipe ->stream_res))); |
190 | } |
191 | } |
192 | } |
193 | |
194 | bool_Bool dcn32_all_pipes_have_stream_and_plane(struct dc *dc, |
195 | struct dc_state *context) |
196 | { |
197 | uint32_t i; |
198 | |
199 | for (i = 0; i < dc->res_pool->pipe_count; i++) { |
200 | struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i]; |
201 | |
202 | if (!pipe->stream) |
203 | continue; |
204 | |
205 | if (!pipe->plane_state) |
206 | return false0; |
207 | } |
208 | return true1; |
209 | } |
210 | |
211 | bool_Bool dcn32_subvp_in_use(struct dc *dc, |
212 | struct dc_state *context) |
213 | { |
214 | uint32_t i; |
215 | |
216 | for (i = 0; i < dc->res_pool->pipe_count; i++) { |
217 | struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i]; |
218 | |
219 | if (pipe->stream && pipe->stream->mall_stream_config.type != SUBVP_NONE) |
220 | return true1; |
221 | } |
222 | return false0; |
223 | } |
224 | |
225 | bool_Bool dcn32_mpo_in_use(struct dc_state *context) |
226 | { |
227 | uint32_t i; |
228 | |
229 | for (i = 0; i < context->stream_count; i++) { |
230 | if (context->stream_status[i].plane_count > 1) |
231 | return true1; |
232 | } |
233 | return false0; |
234 | } |
235 | |
236 | |
237 | bool_Bool dcn32_any_surfaces_rotated(struct dc *dc, struct dc_state *context) |
238 | { |
239 | uint32_t i; |
240 | |
241 | for (i = 0; i < dc->res_pool->pipe_count; i++) { |
242 | struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i]; |
243 | |
244 | if (!pipe->stream) |
245 | continue; |
246 | |
247 | if (pipe->plane_state && pipe->plane_state->rotation != ROTATION_ANGLE_0) |
248 | return true1; |
249 | } |
250 | return false0; |
251 | } |
252 | |
253 | /** |
254 | * ******************************************************************************************* |
255 | * dcn32_determine_det_override: Determine DET allocation for each pipe |
256 | * |
257 | * This function determines how much DET to allocate for each pipe. The total number of |
258 | * DET segments will be split equally among each of the streams, and after that the DET |
259 | * segments per stream will be split equally among the planes for the given stream. |
260 | * |
261 | * If there is a plane that's driven by more than 1 pipe (i.e. pipe split), then the |
262 | * number of DET for that given plane will be split among the pipes driving that plane. |
263 | * |
264 | * |
265 | * High level algorithm: |
266 | * 1. Split total DET among number of streams |
267 | * 2. For each stream, split DET among the planes |
268 | * 3. For each plane, check if there is a pipe split. If yes, split the DET allocation |
269 | * among those pipes. |
270 | * 4. Assign the DET override to the DML pipes. |
271 | * |
272 | * @param [in]: dc: Current DC state |
273 | * @param [in]: context: New DC state to be programmed |
274 | * @param [in]: pipes: Array of DML pipes |
275 | * |
276 | * @return: void |
277 | * |
278 | * ******************************************************************************************* |
279 | */ |
280 | void dcn32_determine_det_override(struct dc *dc, |
281 | struct dc_state *context, |
282 | display_e2e_pipe_params_st *pipes) |
283 | { |
284 | uint32_t i, j, k; |
285 | uint8_t pipe_plane_count, stream_segments, plane_segments, pipe_segments[MAX_PIPES6] = {0}; |
286 | uint8_t pipe_counted[MAX_PIPES6] = {0}; |
287 | uint8_t pipe_cnt = 0; |
288 | struct dc_plane_state *current_plane = NULL((void *)0); |
289 | uint8_t stream_count = 0; |
290 | |
291 | for (i = 0; i < context->stream_count; i++) { |
292 | /* Don't count SubVP streams for DET allocation */ |
293 | if (context->streams[i]->mall_stream_config.type != SUBVP_PHANTOM) { |
294 | stream_count++; |
295 | } |
296 | } |
297 | |
298 | if (stream_count > 0) { |
299 | stream_segments = 18 / stream_count; |
300 | for (i = 0; i < context->stream_count; i++) { |
301 | if (context->streams[i]->mall_stream_config.type == SUBVP_PHANTOM) |
302 | continue; |
303 | if (context->stream_status[i].plane_count > 0) |
304 | plane_segments = stream_segments / context->stream_status[i].plane_count; |
305 | else |
306 | plane_segments = stream_segments; |
307 | for (j = 0; j < dc->res_pool->pipe_count; j++) { |
308 | pipe_plane_count = 0; |
309 | if (context->res_ctx.pipe_ctx[j].stream == context->streams[i] && |
310 | pipe_counted[j] != 1) { |
311 | /* Note: pipe_plane_count indicates the number of pipes to be used for a |
312 | * given plane. e.g. pipe_plane_count = 1 means single pipe (i.e. not split), |
313 | * pipe_plane_count = 2 means 2:1 split, etc. |
314 | */ |
315 | pipe_plane_count++; |
316 | pipe_counted[j] = 1; |
317 | current_plane = context->res_ctx.pipe_ctx[j].plane_state; |
318 | for (k = 0; k < dc->res_pool->pipe_count; k++) { |
319 | if (k != j && context->res_ctx.pipe_ctx[k].stream == context->streams[i] && |
320 | context->res_ctx.pipe_ctx[k].plane_state == current_plane) { |
321 | pipe_plane_count++; |
322 | pipe_counted[k] = 1; |
323 | } |
324 | } |
325 | |
326 | pipe_segments[j] = plane_segments / pipe_plane_count; |
327 | for (k = 0; k < dc->res_pool->pipe_count; k++) { |
328 | if (k != j && context->res_ctx.pipe_ctx[k].stream == context->streams[i] && |
329 | context->res_ctx.pipe_ctx[k].plane_state == current_plane) { |
330 | pipe_segments[k] = plane_segments / pipe_plane_count; |
331 | } |
332 | } |
333 | } |
334 | } |
335 | } |
336 | |
337 | for (i = 0, pipe_cnt = 0; i < dc->res_pool->pipe_count; i++) { |
338 | if (!context->res_ctx.pipe_ctx[i].stream) |
339 | continue; |
340 | pipes[pipe_cnt].pipe.src.det_size_override = pipe_segments[i] * DCN3_2_DET_SEG_SIZE64; |
341 | pipe_cnt++; |
342 | } |
343 | } else { |
344 | for (i = 0; i < dc->res_pool->pipe_count; i++) |
345 | pipes[i].pipe.src.det_size_override = 4 * DCN3_2_DET_SEG_SIZE64; //DCN3_2_DEFAULT_DET_SIZE |
346 | } |
347 | } |
348 | |
349 | void dcn32_set_det_allocations(struct dc *dc, struct dc_state *context, |
350 | display_e2e_pipe_params_st *pipes) |
351 | { |
352 | int i, pipe_cnt; |
353 | struct resource_context *res_ctx = &context->res_ctx; |
354 | struct pipe_ctx *pipe; |
355 | |
356 | for (i = 0, pipe_cnt = 0; i < dc->res_pool->pipe_count; i++) { |
357 | |
358 | if (!res_ctx->pipe_ctx[i].stream) |
359 | continue; |
360 | |
361 | pipe = &res_ctx->pipe_ctx[i]; |
362 | pipe_cnt++; |
363 | } |
364 | |
365 | /* For DET allocation, we don't want to use DML policy (not optimal for utilizing all |
366 | * the DET available for each pipe). Use the DET override input to maintain our driver |
367 | * policy. |
368 | */ |
369 | if (pipe_cnt == 1) { |
370 | pipes[0].pipe.src.det_size_override = DCN3_2_MAX_DET_SIZE1152; |
371 | if (pipe->plane_state && !dc->debug.disable_z9_mpc && pipe->plane_state->tiling_info.gfx9.swizzle != DC_SW_LINEAR) { |
372 | if (!is_dual_plane(pipe->plane_state->format)) { |
373 | pipes[0].pipe.src.det_size_override = DCN3_2_DEFAULT_DET_SIZE256; |
374 | pipes[0].pipe.src.unbounded_req_mode = true1; |
375 | if (pipe->plane_state->src_rect.width >= 5120 && |
376 | pipe->plane_state->src_rect.height >= 2880) |
377 | pipes[0].pipe.src.det_size_override = 320; // 5K or higher |
378 | } |
379 | } |
380 | } else |
381 | dcn32_determine_det_override(dc, context, pipes); |
382 | } |
383 | |
384 | /** |
385 | * ******************************************************************************************* |
386 | * dcn32_save_mall_state: Save MALL (SubVP) state for fast validation cases |
387 | * |
388 | * This function saves the MALL (SubVP) case for fast validation cases. For fast validation, |
389 | * there are situations where a shallow copy of the dc->current_state is created for the |
390 | * validation. In this case we want to save and restore the mall config because we always |
391 | * teardown subvp at the beginning of validation (and don't attempt to add it back if it's |
392 | * fast validation). If we don't restore the subvp config in cases of fast validation + |
393 | * shallow copy of the dc->current_state, the dc->current_state will have a partially |
394 | * removed subvp state when we did not intend to remove it. |
395 | * |
396 | * NOTE: This function ONLY works if the streams are not moved to a different pipe in the |
397 | * validation. We don't expect this to happen in fast_validation=1 cases. |
398 | * |
399 | * @param [in]: dc: Current DC state |
400 | * @param [in]: context: New DC state to be programmed |
401 | * @param [out]: temp_config: struct used to cache the existing MALL state |
402 | * |
403 | * @return: void |
404 | * |
405 | * ******************************************************************************************* |
406 | */ |
407 | void dcn32_save_mall_state(struct dc *dc, |
408 | struct dc_state *context, |
409 | struct mall_temp_config *temp_config) |
410 | { |
411 | uint32_t i; |
412 | |
413 | for (i = 0; i < dc->res_pool->pipe_count; i++) { |
414 | struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i]; |
415 | |
416 | if (pipe->stream) |
417 | temp_config->mall_stream_config[i] = pipe->stream->mall_stream_config; |
418 | |
419 | if (pipe->plane_state) |
420 | temp_config->is_phantom_plane[i] = pipe->plane_state->is_phantom; |
421 | } |
422 | } |
423 | |
424 | /** |
425 | * ******************************************************************************************* |
426 | * dcn32_restore_mall_state: Restore MALL (SubVP) state for fast validation cases |
427 | * |
428 | * Restore the MALL state based on the previously saved state from dcn32_save_mall_state |
429 | * |
430 | * @param [in]: dc: Current DC state |
431 | * @param [in/out]: context: New DC state to be programmed, restore MALL state into here |
432 | * @param [in]: temp_config: struct that has the cached MALL state |
433 | * |
434 | * @return: void |
435 | * |
436 | * ******************************************************************************************* |
437 | */ |
438 | void dcn32_restore_mall_state(struct dc *dc, |
439 | struct dc_state *context, |
440 | struct mall_temp_config *temp_config) |
441 | { |
442 | uint32_t i; |
443 | |
444 | for (i = 0; i < dc->res_pool->pipe_count; i++) { |
445 | struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i]; |
446 | |
447 | if (pipe->stream) |
448 | pipe->stream->mall_stream_config = temp_config->mall_stream_config[i]; |
449 | |
450 | if (pipe->plane_state) |
451 | pipe->plane_state->is_phantom = temp_config->is_phantom_plane[i]; |
452 | } |
453 | } |