1 /*
2 * Copyright © 2014 Broadcom
3 * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
22 * IN THE SOFTWARE.
23 */
24
25 #include "pipe/p_defines.h"
26 #include "util/u_memory.h"
27 #include "util/format/u_format.h"
28 #include "util/u_inlines.h"
29 #include "util/u_surface.h"
30 #include "util/u_transfer_helper.h"
31 #include "util/u_upload_mgr.h"
32 #include "util/u_drm.h"
33
34 #include "drm-uapi/drm_fourcc.h"
35 #include "drm-uapi/vc4_drm.h"
36 #include "vc4_screen.h"
37 #include "vc4_context.h"
38 #include "vc4_resource.h"
39 #include "vc4_tiling.h"
40
41 static bool
vc4_resource_bo_alloc(struct vc4_resource * rsc)42 vc4_resource_bo_alloc(struct vc4_resource *rsc)
43 {
44 struct pipe_resource *prsc = &rsc->base;
45 struct pipe_screen *pscreen = prsc->screen;
46 struct vc4_bo *bo;
47
48 if (vc4_debug & VC4_DEBUG_SURFACE) {
49 fprintf(stderr, "alloc %p: size %d + offset %d -> %d\n",
50 rsc,
51 rsc->slices[0].size,
52 rsc->slices[0].offset,
53 rsc->slices[0].offset +
54 rsc->slices[0].size +
55 rsc->cube_map_stride * (prsc->array_size - 1));
56 }
57
58 bo = vc4_bo_alloc(vc4_screen(pscreen),
59 rsc->slices[0].offset +
60 rsc->slices[0].size +
61 rsc->cube_map_stride * (prsc->array_size - 1),
62 "resource");
63 if (bo) {
64 vc4_bo_unreference(&rsc->bo);
65 rsc->bo = bo;
66 return true;
67 } else {
68 return false;
69 }
70 }
71
72 static void
vc4_resource_transfer_unmap(struct pipe_context * pctx,struct pipe_transfer * ptrans)73 vc4_resource_transfer_unmap(struct pipe_context *pctx,
74 struct pipe_transfer *ptrans)
75 {
76 struct vc4_context *vc4 = vc4_context(pctx);
77 struct vc4_transfer *trans = vc4_transfer(ptrans);
78
79 if (trans->map) {
80 struct vc4_resource *rsc = vc4_resource(ptrans->resource);
81 struct vc4_resource_slice *slice = &rsc->slices[ptrans->level];
82
83 if (ptrans->usage & PIPE_MAP_WRITE) {
84 vc4_store_tiled_image(rsc->bo->map + slice->offset +
85 ptrans->box.z * rsc->cube_map_stride,
86 slice->stride,
87 trans->map, ptrans->stride,
88 slice->tiling, rsc->cpp,
89 &ptrans->box);
90 }
91 free(trans->map);
92 }
93
94 pipe_resource_reference(&ptrans->resource, NULL);
95 slab_free(&vc4->transfer_pool, ptrans);
96 }
97
98 static void *
vc4_resource_transfer_map(struct pipe_context * pctx,struct pipe_resource * prsc,unsigned level,unsigned usage,const struct pipe_box * box,struct pipe_transfer ** pptrans)99 vc4_resource_transfer_map(struct pipe_context *pctx,
100 struct pipe_resource *prsc,
101 unsigned level, unsigned usage,
102 const struct pipe_box *box,
103 struct pipe_transfer **pptrans)
104 {
105 struct vc4_context *vc4 = vc4_context(pctx);
106 struct vc4_resource *rsc = vc4_resource(prsc);
107 struct vc4_transfer *trans;
108 struct pipe_transfer *ptrans;
109 enum pipe_format format = prsc->format;
110 char *buf;
111
112 /* Upgrade DISCARD_RANGE to WHOLE_RESOURCE if the whole resource is
113 * being mapped.
114 */
115 if ((usage & PIPE_MAP_DISCARD_RANGE) &&
116 !(usage & PIPE_MAP_UNSYNCHRONIZED) &&
117 !(prsc->flags & PIPE_RESOURCE_FLAG_MAP_PERSISTENT) &&
118 prsc->last_level == 0 &&
119 prsc->width0 == box->width &&
120 prsc->height0 == box->height &&
121 prsc->depth0 == box->depth &&
122 prsc->array_size == 1 &&
123 rsc->bo->private) {
124 usage |= PIPE_MAP_DISCARD_WHOLE_RESOURCE;
125 }
126
127 if (usage & PIPE_MAP_DISCARD_WHOLE_RESOURCE) {
128 if (vc4_resource_bo_alloc(rsc)) {
129 /* If it might be bound as one of our vertex buffers,
130 * make sure we re-emit vertex buffer state.
131 */
132 if (prsc->bind & PIPE_BIND_VERTEX_BUFFER)
133 vc4->dirty |= VC4_DIRTY_VTXBUF;
134 } else {
135 /* If we failed to reallocate, flush users so that we
136 * don't violate any syncing requirements.
137 */
138 vc4_flush_jobs_reading_resource(vc4, prsc);
139 }
140 } else if (!(usage & PIPE_MAP_UNSYNCHRONIZED)) {
141 /* If we're writing and the buffer is being used by the CL, we
142 * have to flush the CL first. If we're only reading, we need
143 * to flush if the CL has written our buffer.
144 */
145 if (usage & PIPE_MAP_WRITE)
146 vc4_flush_jobs_reading_resource(vc4, prsc);
147 else
148 vc4_flush_jobs_writing_resource(vc4, prsc);
149 }
150
151 if (usage & PIPE_MAP_WRITE) {
152 rsc->writes++;
153 rsc->initialized_buffers = ~0;
154 }
155
156 trans = slab_zalloc(&vc4->transfer_pool);
157 if (!trans)
158 return NULL;
159
160 /* XXX: Handle DONTBLOCK, DISCARD_RANGE, PERSISTENT, COHERENT. */
161
162 ptrans = &trans->base;
163
164 pipe_resource_reference(&ptrans->resource, prsc);
165 ptrans->level = level;
166 ptrans->usage = usage;
167 ptrans->box = *box;
168
169 if (usage & PIPE_MAP_UNSYNCHRONIZED)
170 buf = vc4_bo_map_unsynchronized(rsc->bo);
171 else
172 buf = vc4_bo_map(rsc->bo);
173 if (!buf) {
174 fprintf(stderr, "Failed to map bo\n");
175 goto fail;
176 }
177
178 *pptrans = ptrans;
179
180 struct vc4_resource_slice *slice = &rsc->slices[level];
181 if (rsc->tiled) {
182 /* No direct mappings of tiled, since we need to manually
183 * tile/untile.
184 */
185 if (usage & PIPE_MAP_DIRECTLY)
186 return NULL;
187
188 /* Our load/store routines work on entire compressed blocks. */
189 u_box_pixels_to_blocks(&ptrans->box, &ptrans->box, format);
190
191 ptrans->stride = ptrans->box.width * rsc->cpp;
192 ptrans->layer_stride = ptrans->stride * ptrans->box.height;
193
194 trans->map = malloc(ptrans->layer_stride * ptrans->box.depth);
195
196 if (usage & PIPE_MAP_READ) {
197 vc4_load_tiled_image(trans->map, ptrans->stride,
198 buf + slice->offset +
199 ptrans->box.z * rsc->cube_map_stride,
200 slice->stride,
201 slice->tiling, rsc->cpp,
202 &ptrans->box);
203 }
204 return trans->map;
205 } else {
206 ptrans->stride = slice->stride;
207 ptrans->layer_stride = ptrans->stride;
208
209 return buf + slice->offset +
210 ptrans->box.y / util_format_get_blockheight(format) * ptrans->stride +
211 ptrans->box.x / util_format_get_blockwidth(format) * rsc->cpp +
212 ptrans->box.z * rsc->cube_map_stride;
213 }
214
215
216 fail:
217 vc4_resource_transfer_unmap(pctx, ptrans);
218 return NULL;
219 }
220
221 static void
vc4_texture_subdata(struct pipe_context * pctx,struct pipe_resource * prsc,unsigned level,unsigned usage,const struct pipe_box * box,const void * data,unsigned stride,unsigned layer_stride)222 vc4_texture_subdata(struct pipe_context *pctx,
223 struct pipe_resource *prsc,
224 unsigned level,
225 unsigned usage,
226 const struct pipe_box *box,
227 const void *data,
228 unsigned stride,
229 unsigned layer_stride)
230 {
231 struct vc4_resource *rsc = vc4_resource(prsc);
232 struct vc4_resource_slice *slice = &rsc->slices[level];
233
234 /* For a direct mapping, we can just take the u_transfer path. */
235 if (!rsc->tiled ||
236 box->depth != 1 ||
237 (usage & PIPE_MAP_DISCARD_WHOLE_RESOURCE)) {
238 return u_default_texture_subdata(pctx, prsc, level, usage, box,
239 data, stride, layer_stride);
240 }
241
242 /* Otherwise, map and store the texture data directly into the tiled
243 * texture.
244 */
245 void *buf;
246 if (usage & PIPE_MAP_UNSYNCHRONIZED)
247 buf = vc4_bo_map_unsynchronized(rsc->bo);
248 else
249 buf = vc4_bo_map(rsc->bo);
250
251 vc4_store_tiled_image(buf + slice->offset +
252 box->z * rsc->cube_map_stride,
253 slice->stride,
254 (void *)data, stride,
255 slice->tiling, rsc->cpp,
256 box);
257 }
258
259 static void
vc4_resource_destroy(struct pipe_screen * pscreen,struct pipe_resource * prsc)260 vc4_resource_destroy(struct pipe_screen *pscreen,
261 struct pipe_resource *prsc)
262 {
263 struct vc4_screen *screen = vc4_screen(pscreen);
264 struct vc4_resource *rsc = vc4_resource(prsc);
265 vc4_bo_unreference(&rsc->bo);
266
267 if (rsc->scanout)
268 renderonly_scanout_destroy(rsc->scanout, screen->ro);
269
270 free(rsc);
271 }
272
273 static uint64_t
vc4_resource_modifier(struct vc4_resource * rsc)274 vc4_resource_modifier(struct vc4_resource *rsc)
275 {
276 if (rsc->tiled)
277 return DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED;
278 else
279 return DRM_FORMAT_MOD_LINEAR;
280 }
281
282 static bool
vc4_resource_get_handle(struct pipe_screen * pscreen,struct pipe_context * pctx,struct pipe_resource * prsc,struct winsys_handle * whandle,unsigned usage)283 vc4_resource_get_handle(struct pipe_screen *pscreen,
284 struct pipe_context *pctx,
285 struct pipe_resource *prsc,
286 struct winsys_handle *whandle,
287 unsigned usage)
288 {
289 struct vc4_screen *screen = vc4_screen(pscreen);
290 struct vc4_resource *rsc = vc4_resource(prsc);
291
292 whandle->stride = rsc->slices[0].stride;
293 whandle->offset = 0;
294 whandle->modifier = vc4_resource_modifier(rsc);
295
296 /* If we're passing some reference to our BO out to some other part of
297 * the system, then we can't do any optimizations about only us being
298 * the ones seeing it (like BO caching or shadow update avoidance).
299 */
300 rsc->bo->private = false;
301
302 switch (whandle->type) {
303 case WINSYS_HANDLE_TYPE_SHARED:
304 if (screen->ro) {
305 /* This could probably be supported, assuming that a
306 * control node was used for pl111.
307 */
308 fprintf(stderr, "flink unsupported with pl111\n");
309 return false;
310 }
311
312 return vc4_bo_flink(rsc->bo, &whandle->handle);
313 case WINSYS_HANDLE_TYPE_KMS:
314 if (screen->ro) {
315 return renderonly_get_handle(rsc->scanout, whandle);
316 }
317 whandle->handle = rsc->bo->handle;
318 return true;
319 case WINSYS_HANDLE_TYPE_FD:
320 /* FDs are cross-device, so we can export directly from vc4.
321 */
322 whandle->handle = vc4_bo_get_dmabuf(rsc->bo);
323 return whandle->handle != -1;
324 }
325
326 return false;
327 }
328
329 static bool
vc4_resource_get_param(struct pipe_screen * pscreen,struct pipe_context * pctx,struct pipe_resource * prsc,unsigned plane,unsigned layer,unsigned level,enum pipe_resource_param param,unsigned usage,uint64_t * value)330 vc4_resource_get_param(struct pipe_screen *pscreen,
331 struct pipe_context *pctx, struct pipe_resource *prsc,
332 unsigned plane, unsigned layer, unsigned level,
333 enum pipe_resource_param param,
334 unsigned usage, uint64_t *value)
335 {
336 struct vc4_resource *rsc = vc4_resource(prsc);
337
338 switch (param) {
339 case PIPE_RESOURCE_PARAM_STRIDE:
340 *value = rsc->slices[level].stride;
341 return true;
342 case PIPE_RESOURCE_PARAM_OFFSET:
343 *value = 0;
344 return true;
345 case PIPE_RESOURCE_PARAM_MODIFIER:
346 *value = vc4_resource_modifier(rsc);
347 return true;
348 default:
349 return false;
350 }
351 }
352
353 static void
vc4_setup_slices(struct vc4_resource * rsc,const char * caller)354 vc4_setup_slices(struct vc4_resource *rsc, const char *caller)
355 {
356 struct pipe_resource *prsc = &rsc->base;
357 uint32_t width = prsc->width0;
358 uint32_t height = prsc->height0;
359 if (prsc->format == PIPE_FORMAT_ETC1_RGB8) {
360 width = (width + 3) >> 2;
361 height = (height + 3) >> 2;
362 }
363
364 uint32_t pot_width = util_next_power_of_two(width);
365 uint32_t pot_height = util_next_power_of_two(height);
366 uint32_t offset = 0;
367 uint32_t utile_w = vc4_utile_width(rsc->cpp);
368 uint32_t utile_h = vc4_utile_height(rsc->cpp);
369
370 for (int i = prsc->last_level; i >= 0; i--) {
371 struct vc4_resource_slice *slice = &rsc->slices[i];
372
373 uint32_t level_width, level_height;
374 if (i == 0) {
375 level_width = width;
376 level_height = height;
377 } else {
378 level_width = u_minify(pot_width, i);
379 level_height = u_minify(pot_height, i);
380 }
381
382 if (!rsc->tiled) {
383 slice->tiling = VC4_TILING_FORMAT_LINEAR;
384 if (prsc->nr_samples > 1) {
385 /* MSAA (4x) surfaces are stored as raw tile buffer contents. */
386 level_width = align(level_width, 32);
387 level_height = align(level_height, 32);
388 } else {
389 level_width = align(level_width, utile_w);
390 }
391 } else {
392 if (vc4_size_is_lt(level_width, level_height,
393 rsc->cpp)) {
394 slice->tiling = VC4_TILING_FORMAT_LT;
395 level_width = align(level_width, utile_w);
396 level_height = align(level_height, utile_h);
397 } else {
398 slice->tiling = VC4_TILING_FORMAT_T;
399 level_width = align(level_width,
400 4 * 2 * utile_w);
401 level_height = align(level_height,
402 4 * 2 * utile_h);
403 }
404 }
405
406 slice->offset = offset;
407 slice->stride = (level_width * rsc->cpp *
408 MAX2(prsc->nr_samples, 1));
409 slice->size = level_height * slice->stride;
410
411 offset += slice->size;
412
413 if (vc4_debug & VC4_DEBUG_SURFACE) {
414 static const char tiling_chars[] = {
415 [VC4_TILING_FORMAT_LINEAR] = 'R',
416 [VC4_TILING_FORMAT_LT] = 'L',
417 [VC4_TILING_FORMAT_T] = 'T'
418 };
419 fprintf(stderr,
420 "rsc %s %p (format %s: vc4 %d), %dx%d: "
421 "level %d (%c) -> %dx%d, stride %d@0x%08x\n",
422 caller, rsc,
423 util_format_short_name(prsc->format),
424 rsc->vc4_format,
425 prsc->width0, prsc->height0,
426 i, tiling_chars[slice->tiling],
427 level_width, level_height,
428 slice->stride, slice->offset);
429 }
430 }
431
432 /* The texture base pointer that has to point to level 0 doesn't have
433 * intra-page bits, so we have to align it, and thus shift up all the
434 * smaller slices.
435 */
436 uint32_t page_align_offset = (align(rsc->slices[0].offset, 4096) -
437 rsc->slices[0].offset);
438 if (page_align_offset) {
439 for (int i = 0; i <= prsc->last_level; i++)
440 rsc->slices[i].offset += page_align_offset;
441 }
442
443 /* Cube map faces appear as whole miptrees at a page-aligned offset
444 * from the first face's miptree.
445 */
446 if (prsc->target == PIPE_TEXTURE_CUBE) {
447 rsc->cube_map_stride = align(rsc->slices[0].offset +
448 rsc->slices[0].size, 4096);
449 }
450 }
451
452 static struct vc4_resource *
vc4_resource_setup(struct pipe_screen * pscreen,const struct pipe_resource * tmpl)453 vc4_resource_setup(struct pipe_screen *pscreen,
454 const struct pipe_resource *tmpl)
455 {
456 struct vc4_resource *rsc = CALLOC_STRUCT(vc4_resource);
457 if (!rsc)
458 return NULL;
459 struct pipe_resource *prsc = &rsc->base;
460
461 *prsc = *tmpl;
462
463 pipe_reference_init(&prsc->reference, 1);
464 prsc->screen = pscreen;
465
466 if (prsc->nr_samples <= 1)
467 rsc->cpp = util_format_get_blocksize(tmpl->format);
468 else
469 rsc->cpp = sizeof(uint32_t);
470
471 assert(rsc->cpp);
472
473 return rsc;
474 }
475
476 static enum vc4_texture_data_type
get_resource_texture_format(struct pipe_resource * prsc)477 get_resource_texture_format(struct pipe_resource *prsc)
478 {
479 struct vc4_resource *rsc = vc4_resource(prsc);
480 uint8_t format = vc4_get_tex_format(prsc->format);
481
482 if (!rsc->tiled) {
483 if (prsc->nr_samples > 1) {
484 return ~0;
485 } else {
486 if (format == VC4_TEXTURE_TYPE_RGBA8888)
487 return VC4_TEXTURE_TYPE_RGBA32R;
488 else
489 return ~0;
490 }
491 }
492
493 return format;
494 }
495
496 static struct pipe_resource *
vc4_resource_create_with_modifiers(struct pipe_screen * pscreen,const struct pipe_resource * tmpl,const uint64_t * modifiers,int count)497 vc4_resource_create_with_modifiers(struct pipe_screen *pscreen,
498 const struct pipe_resource *tmpl,
499 const uint64_t *modifiers,
500 int count)
501 {
502 struct vc4_screen *screen = vc4_screen(pscreen);
503 struct vc4_resource *rsc = vc4_resource_setup(pscreen, tmpl);
504 struct pipe_resource *prsc = &rsc->base;
505 bool linear_ok = drm_find_modifier(DRM_FORMAT_MOD_LINEAR, modifiers, count);
506 /* Use a tiled layout if we can, for better 3D performance. */
507 bool should_tile = true;
508
509 /* VBOs/PBOs are untiled (and 1 height). */
510 if (tmpl->target == PIPE_BUFFER)
511 should_tile = false;
512
513 /* MSAA buffers are linear. */
514 if (tmpl->nr_samples > 1)
515 should_tile = false;
516
517 /* No tiling when we're sharing with another device (pl111). */
518 if (screen->ro && (tmpl->bind & PIPE_BIND_SCANOUT))
519 should_tile = false;
520
521 /* Cursors are always linear, and the user can request linear as well.
522 */
523 if (tmpl->bind & (PIPE_BIND_LINEAR | PIPE_BIND_CURSOR))
524 should_tile = false;
525
526 /* No shared objects with LT format -- the kernel only has T-format
527 * metadata. LT objects are small enough it's not worth the trouble to
528 * give them metadata to tile.
529 */
530 if ((tmpl->bind & (PIPE_BIND_SHARED | PIPE_BIND_SCANOUT)) &&
531 vc4_size_is_lt(prsc->width0, prsc->height0, rsc->cpp))
532 should_tile = false;
533
534 /* If we're sharing or scanning out, we need the ioctl present to
535 * inform the kernel or the other side.
536 */
537 if ((tmpl->bind & (PIPE_BIND_SHARED |
538 PIPE_BIND_SCANOUT)) && !screen->has_tiling_ioctl)
539 should_tile = false;
540
541 /* No user-specified modifier; determine our own. */
542 if (count == 1 && modifiers[0] == DRM_FORMAT_MOD_INVALID) {
543 linear_ok = true;
544 rsc->tiled = should_tile;
545 } else if (should_tile &&
546 drm_find_modifier(DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED,
547 modifiers, count)) {
548 rsc->tiled = true;
549 } else if (linear_ok) {
550 rsc->tiled = false;
551 } else {
552 fprintf(stderr, "Unsupported modifier requested\n");
553 return NULL;
554 }
555
556 if (tmpl->target != PIPE_BUFFER)
557 rsc->vc4_format = get_resource_texture_format(prsc);
558
559 vc4_setup_slices(rsc, "create");
560 if (!vc4_resource_bo_alloc(rsc))
561 goto fail;
562
563 if (screen->has_tiling_ioctl) {
564 uint64_t modifier;
565 if (rsc->tiled)
566 modifier = DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED;
567 else
568 modifier = DRM_FORMAT_MOD_LINEAR;
569 struct drm_vc4_set_tiling set_tiling = {
570 .handle = rsc->bo->handle,
571 .modifier = modifier,
572 };
573 int ret = vc4_ioctl(screen->fd, DRM_IOCTL_VC4_SET_TILING,
574 &set_tiling);
575 if (ret != 0)
576 goto fail;
577 }
578
579 /* Set up the "scanout resource" (the dmabuf export of our buffer to
580 * the KMS handle) if the buffer might ever have
581 * resource_get_handle(WINSYS_HANDLE_TYPE_KMS) called on it.
582 * create_with_modifiers() doesn't give us usage flags, so we have to
583 * assume that all calls with modifiers are scanout-possible.
584 */
585 if (screen->ro &&
586 ((tmpl->bind & PIPE_BIND_SCANOUT) ||
587 !(count == 1 && modifiers[0] == DRM_FORMAT_MOD_INVALID))) {
588 rsc->scanout =
589 renderonly_scanout_for_resource(prsc, screen->ro, NULL);
590 if (!rsc->scanout)
591 goto fail;
592 }
593
594 vc4_bo_label(screen, rsc->bo, "%sresource %dx%d@%d/%d",
595 (tmpl->bind & PIPE_BIND_SCANOUT) ? "scanout " : "",
596 tmpl->width0, tmpl->height0,
597 rsc->cpp * 8, prsc->last_level);
598
599 return prsc;
600 fail:
601 vc4_resource_destroy(pscreen, prsc);
602 return NULL;
603 }
604
605 struct pipe_resource *
vc4_resource_create(struct pipe_screen * pscreen,const struct pipe_resource * tmpl)606 vc4_resource_create(struct pipe_screen *pscreen,
607 const struct pipe_resource *tmpl)
608 {
609 const uint64_t mod = DRM_FORMAT_MOD_INVALID;
610 return vc4_resource_create_with_modifiers(pscreen, tmpl, &mod, 1);
611 }
612
613 static struct pipe_resource *
vc4_resource_from_handle(struct pipe_screen * pscreen,const struct pipe_resource * tmpl,struct winsys_handle * whandle,unsigned usage)614 vc4_resource_from_handle(struct pipe_screen *pscreen,
615 const struct pipe_resource *tmpl,
616 struct winsys_handle *whandle,
617 unsigned usage)
618 {
619 struct vc4_screen *screen = vc4_screen(pscreen);
620 struct vc4_resource *rsc = vc4_resource_setup(pscreen, tmpl);
621 struct pipe_resource *prsc = &rsc->base;
622 struct vc4_resource_slice *slice = &rsc->slices[0];
623
624 if (!rsc)
625 return NULL;
626
627 switch (whandle->type) {
628 case WINSYS_HANDLE_TYPE_SHARED:
629 rsc->bo = vc4_bo_open_name(screen, whandle->handle);
630 break;
631 case WINSYS_HANDLE_TYPE_FD:
632 rsc->bo = vc4_bo_open_dmabuf(screen, whandle->handle);
633 break;
634 default:
635 fprintf(stderr,
636 "Attempt to import unsupported handle type %d\n",
637 whandle->type);
638 }
639
640 if (!rsc->bo)
641 goto fail;
642
643 struct drm_vc4_get_tiling get_tiling = {
644 .handle = rsc->bo->handle,
645 };
646 int ret = vc4_ioctl(screen->fd, DRM_IOCTL_VC4_GET_TILING, &get_tiling);
647
648 if (ret != 0) {
649 whandle->modifier = DRM_FORMAT_MOD_LINEAR;
650 } else if (whandle->modifier == DRM_FORMAT_MOD_INVALID) {
651 whandle->modifier = get_tiling.modifier;
652 } else if (whandle->modifier != get_tiling.modifier) {
653 fprintf(stderr,
654 "Modifier 0x%llx vs. tiling (0x%llx) mismatch\n",
655 (long long)whandle->modifier, get_tiling.modifier);
656 goto fail;
657 }
658
659 switch (whandle->modifier) {
660 case DRM_FORMAT_MOD_LINEAR:
661 rsc->tiled = false;
662 break;
663 case DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED:
664 rsc->tiled = true;
665 break;
666 default:
667 fprintf(stderr,
668 "Attempt to import unsupported modifier 0x%llx\n",
669 (long long)whandle->modifier);
670 goto fail;
671 }
672
673 rsc->vc4_format = get_resource_texture_format(prsc);
674 vc4_setup_slices(rsc, "import");
675
676 if (whandle->offset != 0) {
677 if (rsc->tiled) {
678 fprintf(stderr,
679 "Attempt to import unsupported "
680 "winsys offset %u\n",
681 whandle->offset);
682 goto fail;
683 }
684
685 rsc->slices[0].offset += whandle->offset;
686
687 if (rsc->slices[0].offset + rsc->slices[0].size >
688 rsc->bo->size) {
689 fprintf(stderr, "Attempt to import "
690 "with overflowing offset (%d + %d > %d)\n",
691 whandle->offset,
692 rsc->slices[0].size,
693 rsc->bo->size);
694 goto fail;
695 }
696 }
697
698 if (screen->ro) {
699 /* Make sure that renderonly has a handle to our buffer in the
700 * display's fd, so that a later renderonly_get_handle()
701 * returns correct handles or GEM names.
702 */
703 rsc->scanout =
704 renderonly_create_gpu_import_for_resource(prsc,
705 screen->ro,
706 NULL);
707 }
708
709 if (rsc->tiled && whandle->stride != slice->stride) {
710 static bool warned = false;
711 if (!warned) {
712 warned = true;
713 fprintf(stderr,
714 "Attempting to import %dx%d %s with "
715 "unsupported stride %d instead of %d\n",
716 prsc->width0, prsc->height0,
717 util_format_short_name(prsc->format),
718 whandle->stride,
719 slice->stride);
720 }
721 goto fail;
722 } else if (!rsc->tiled) {
723 slice->stride = whandle->stride;
724 }
725
726 return prsc;
727
728 fail:
729 vc4_resource_destroy(pscreen, prsc);
730 return NULL;
731 }
732
733 static struct pipe_surface *
vc4_create_surface(struct pipe_context * pctx,struct pipe_resource * ptex,const struct pipe_surface * surf_tmpl)734 vc4_create_surface(struct pipe_context *pctx,
735 struct pipe_resource *ptex,
736 const struct pipe_surface *surf_tmpl)
737 {
738 struct vc4_surface *surface = CALLOC_STRUCT(vc4_surface);
739 struct vc4_resource *rsc = vc4_resource(ptex);
740
741 if (!surface)
742 return NULL;
743
744 assert(surf_tmpl->u.tex.first_layer == surf_tmpl->u.tex.last_layer);
745
746 struct pipe_surface *psurf = &surface->base;
747 unsigned level = surf_tmpl->u.tex.level;
748
749 pipe_reference_init(&psurf->reference, 1);
750 pipe_resource_reference(&psurf->texture, ptex);
751
752 psurf->context = pctx;
753 psurf->format = surf_tmpl->format;
754 psurf->width = u_minify(ptex->width0, level);
755 psurf->height = u_minify(ptex->height0, level);
756 psurf->u.tex.level = level;
757 psurf->u.tex.first_layer = surf_tmpl->u.tex.first_layer;
758 psurf->u.tex.last_layer = surf_tmpl->u.tex.last_layer;
759 surface->offset = (rsc->slices[level].offset +
760 psurf->u.tex.first_layer * rsc->cube_map_stride);
761 surface->tiling = rsc->slices[level].tiling;
762
763 return &surface->base;
764 }
765
766 static void
vc4_surface_destroy(struct pipe_context * pctx,struct pipe_surface * psurf)767 vc4_surface_destroy(struct pipe_context *pctx, struct pipe_surface *psurf)
768 {
769 pipe_resource_reference(&psurf->texture, NULL);
770 FREE(psurf);
771 }
772
773 static void
vc4_dump_surface_non_msaa(struct pipe_surface * psurf)774 vc4_dump_surface_non_msaa(struct pipe_surface *psurf)
775 {
776 struct pipe_resource *prsc = psurf->texture;
777 struct vc4_resource *rsc = vc4_resource(prsc);
778 uint32_t *map = vc4_bo_map(rsc->bo);
779 uint32_t stride = rsc->slices[0].stride / 4;
780 uint32_t width = psurf->width;
781 uint32_t height = psurf->height;
782 uint32_t chunk_w = width / 79;
783 uint32_t chunk_h = height / 40;
784 uint32_t found_colors[10] = { 0 };
785 uint32_t num_found_colors = 0;
786
787 if (rsc->vc4_format != VC4_TEXTURE_TYPE_RGBA32R) {
788 fprintf(stderr, "%s: Unsupported format %s\n",
789 __func__, util_format_short_name(psurf->format));
790 return;
791 }
792
793 for (int by = 0; by < height; by += chunk_h) {
794 for (int bx = 0; bx < width; bx += chunk_w) {
795 int all_found_color = -1; /* nothing found */
796
797 for (int y = by; y < MIN2(height, by + chunk_h); y++) {
798 for (int x = bx; x < MIN2(width, bx + chunk_w); x++) {
799 uint32_t pix = map[y * stride + x];
800
801 int i;
802 for (i = 0; i < num_found_colors; i++) {
803 if (pix == found_colors[i])
804 break;
805 }
806 if (i == num_found_colors &&
807 num_found_colors <
808 ARRAY_SIZE(found_colors)) {
809 found_colors[num_found_colors++] = pix;
810 }
811
812 if (i < num_found_colors) {
813 if (all_found_color == -1)
814 all_found_color = i;
815 else if (i != all_found_color)
816 all_found_color = ARRAY_SIZE(found_colors);
817 }
818 }
819 }
820 /* If all pixels for this chunk have a consistent
821 * value, then print a character for it. Either a
822 * fixed name (particularly common for piglit tests),
823 * or a runtime-generated number.
824 */
825 if (all_found_color >= 0 &&
826 all_found_color < ARRAY_SIZE(found_colors)) {
827 static const struct {
828 uint32_t val;
829 const char *c;
830 } named_colors[] = {
831 { 0xff000000, "█" },
832 { 0x00000000, "█" },
833 { 0xffff0000, "r" },
834 { 0xff00ff00, "g" },
835 { 0xff0000ff, "b" },
836 { 0xffffffff, "w" },
837 };
838 int i;
839 for (i = 0; i < ARRAY_SIZE(named_colors); i++) {
840 if (named_colors[i].val ==
841 found_colors[all_found_color]) {
842 fprintf(stderr, "%s",
843 named_colors[i].c);
844 break;
845 }
846 }
847 /* For unnamed colors, print a number and the
848 * numbers will have values printed at the
849 * end.
850 */
851 if (i == ARRAY_SIZE(named_colors)) {
852 fprintf(stderr, "%c",
853 '0' + all_found_color);
854 }
855 } else {
856 /* If there's no consistent color, print this.
857 */
858 fprintf(stderr, ".");
859 }
860 }
861 fprintf(stderr, "\n");
862 }
863
864 for (int i = 0; i < num_found_colors; i++) {
865 fprintf(stderr, "color %d: 0x%08x\n", i, found_colors[i]);
866 }
867 }
868
869 static uint32_t
vc4_surface_msaa_get_sample(struct pipe_surface * psurf,uint32_t x,uint32_t y,uint32_t sample)870 vc4_surface_msaa_get_sample(struct pipe_surface *psurf,
871 uint32_t x, uint32_t y, uint32_t sample)
872 {
873 struct pipe_resource *prsc = psurf->texture;
874 struct vc4_resource *rsc = vc4_resource(prsc);
875 uint32_t tile_w = 32, tile_h = 32;
876 uint32_t tiles_w = DIV_ROUND_UP(psurf->width, 32);
877
878 uint32_t tile_x = x / tile_w;
879 uint32_t tile_y = y / tile_h;
880 uint32_t *tile = (vc4_bo_map(rsc->bo) +
881 VC4_TILE_BUFFER_SIZE * (tile_y * tiles_w + tile_x));
882 uint32_t subtile_x = x % tile_w;
883 uint32_t subtile_y = y % tile_h;
884
885 uint32_t quad_samples = VC4_MAX_SAMPLES * 4;
886 uint32_t tile_stride = quad_samples * tile_w / 2;
887
888 return *((uint32_t *)tile +
889 (subtile_y >> 1) * tile_stride +
890 (subtile_x >> 1) * quad_samples +
891 ((subtile_y & 1) << 1) +
892 (subtile_x & 1) +
893 sample);
894 }
895
896 static void
vc4_dump_surface_msaa_char(struct pipe_surface * psurf,uint32_t start_x,uint32_t start_y,uint32_t w,uint32_t h)897 vc4_dump_surface_msaa_char(struct pipe_surface *psurf,
898 uint32_t start_x, uint32_t start_y,
899 uint32_t w, uint32_t h)
900 {
901 bool all_same_color = true;
902 uint32_t all_pix = 0;
903
904 for (int y = start_y; y < start_y + h; y++) {
905 for (int x = start_x; x < start_x + w; x++) {
906 for (int s = 0; s < VC4_MAX_SAMPLES; s++) {
907 uint32_t pix = vc4_surface_msaa_get_sample(psurf,
908 x, y,
909 s);
910 if (x == start_x && y == start_y)
911 all_pix = pix;
912 else if (all_pix != pix)
913 all_same_color = false;
914 }
915 }
916 }
917 if (all_same_color) {
918 static const struct {
919 uint32_t val;
920 const char *c;
921 } named_colors[] = {
922 { 0xff000000, "█" },
923 { 0x00000000, "█" },
924 { 0xffff0000, "r" },
925 { 0xff00ff00, "g" },
926 { 0xff0000ff, "b" },
927 { 0xffffffff, "w" },
928 };
929 int i;
930 for (i = 0; i < ARRAY_SIZE(named_colors); i++) {
931 if (named_colors[i].val == all_pix) {
932 fprintf(stderr, "%s",
933 named_colors[i].c);
934 return;
935 }
936 }
937 fprintf(stderr, "x");
938 } else {
939 fprintf(stderr, ".");
940 }
941 }
942
943 static void
vc4_dump_surface_msaa(struct pipe_surface * psurf)944 vc4_dump_surface_msaa(struct pipe_surface *psurf)
945 {
946 uint32_t tile_w = 32, tile_h = 32;
947 uint32_t tiles_w = DIV_ROUND_UP(psurf->width, tile_w);
948 uint32_t tiles_h = DIV_ROUND_UP(psurf->height, tile_h);
949 uint32_t char_w = 140, char_h = 60;
950 uint32_t char_w_per_tile = char_w / tiles_w - 1;
951 uint32_t char_h_per_tile = char_h / tiles_h - 1;
952
953 fprintf(stderr, "Surface: %dx%d (%dx MSAA)\n",
954 psurf->width, psurf->height, psurf->texture->nr_samples);
955
956 for (int x = 0; x < (char_w_per_tile + 1) * tiles_w; x++)
957 fprintf(stderr, "-");
958 fprintf(stderr, "\n");
959
960 for (int ty = 0; ty < psurf->height; ty += tile_h) {
961 for (int y = 0; y < char_h_per_tile; y++) {
962
963 for (int tx = 0; tx < psurf->width; tx += tile_w) {
964 for (int x = 0; x < char_w_per_tile; x++) {
965 uint32_t bx1 = (x * tile_w /
966 char_w_per_tile);
967 uint32_t bx2 = ((x + 1) * tile_w /
968 char_w_per_tile);
969 uint32_t by1 = (y * tile_h /
970 char_h_per_tile);
971 uint32_t by2 = ((y + 1) * tile_h /
972 char_h_per_tile);
973
974 vc4_dump_surface_msaa_char(psurf,
975 tx + bx1,
976 ty + by1,
977 bx2 - bx1,
978 by2 - by1);
979 }
980 fprintf(stderr, "|");
981 }
982 fprintf(stderr, "\n");
983 }
984
985 for (int x = 0; x < (char_w_per_tile + 1) * tiles_w; x++)
986 fprintf(stderr, "-");
987 fprintf(stderr, "\n");
988 }
989 }
990
991 /** Debug routine to dump the contents of an 8888 surface to the console */
992 void
vc4_dump_surface(struct pipe_surface * psurf)993 vc4_dump_surface(struct pipe_surface *psurf)
994 {
995 if (!psurf)
996 return;
997
998 if (psurf->texture->nr_samples > 1)
999 vc4_dump_surface_msaa(psurf);
1000 else
1001 vc4_dump_surface_non_msaa(psurf);
1002 }
1003
1004 static void
vc4_flush_resource(struct pipe_context * pctx,struct pipe_resource * resource)1005 vc4_flush_resource(struct pipe_context *pctx, struct pipe_resource *resource)
1006 {
1007 /* All calls to flush_resource are followed by a flush of the context,
1008 * so there's nothing to do.
1009 */
1010 }
1011
1012 void
vc4_update_shadow_baselevel_texture(struct pipe_context * pctx,struct pipe_sampler_view * pview)1013 vc4_update_shadow_baselevel_texture(struct pipe_context *pctx,
1014 struct pipe_sampler_view *pview)
1015 {
1016 struct vc4_context *vc4 = vc4_context(pctx);
1017 struct vc4_sampler_view *view = vc4_sampler_view(pview);
1018 struct vc4_resource *shadow = vc4_resource(view->texture);
1019 struct vc4_resource *orig = vc4_resource(pview->texture);
1020
1021 assert(view->texture != pview->texture);
1022
1023 if (shadow->writes == orig->writes && orig->bo->private)
1024 return;
1025
1026 perf_debug("Updating %dx%d@%d shadow texture due to %s\n",
1027 orig->base.width0, orig->base.height0,
1028 pview->u.tex.first_level,
1029 pview->u.tex.first_level ? "base level" : "raster layout");
1030
1031 for (int i = 0; i <= shadow->base.last_level; i++) {
1032 unsigned width = u_minify(shadow->base.width0, i);
1033 unsigned height = u_minify(shadow->base.height0, i);
1034 struct pipe_blit_info info = {
1035 .dst = {
1036 .resource = &shadow->base,
1037 .level = i,
1038 .box = {
1039 .x = 0,
1040 .y = 0,
1041 .z = 0,
1042 .width = width,
1043 .height = height,
1044 .depth = 1,
1045 },
1046 .format = shadow->base.format,
1047 },
1048 .src = {
1049 .resource = &orig->base,
1050 .level = pview->u.tex.first_level + i,
1051 .box = {
1052 .x = 0,
1053 .y = 0,
1054 .z = 0,
1055 .width = width,
1056 .height = height,
1057 .depth = 1,
1058 },
1059 .format = orig->base.format,
1060 },
1061 .mask = ~0,
1062 };
1063 pctx->blit(pctx, &info);
1064 }
1065
1066 shadow->writes = orig->writes;
1067 }
1068
1069 /**
1070 * Converts a 4-byte index buffer to 2 bytes.
1071 *
1072 * Since GLES2 only has support for 1 and 2-byte indices, the hardware doesn't
1073 * include 4-byte index support, and we have to shrink it down.
1074 *
1075 * There's no fallback support for when indices end up being larger than 2^16,
1076 * though it will at least assertion fail. Also, if the original index data
1077 * was in user memory, it would be nice to not have uploaded it to a VBO
1078 * before translating.
1079 */
1080 struct pipe_resource *
vc4_get_shadow_index_buffer(struct pipe_context * pctx,const struct pipe_draw_info * info,uint32_t offset,uint32_t count,uint32_t * shadow_offset)1081 vc4_get_shadow_index_buffer(struct pipe_context *pctx,
1082 const struct pipe_draw_info *info,
1083 uint32_t offset,
1084 uint32_t count,
1085 uint32_t *shadow_offset)
1086 {
1087 struct vc4_context *vc4 = vc4_context(pctx);
1088 struct vc4_resource *orig = vc4_resource(info->index.resource);
1089 perf_debug("Fallback conversion for %d uint indices\n", count);
1090
1091 void *data;
1092 struct pipe_resource *shadow_rsc = NULL;
1093 u_upload_alloc(vc4->uploader, 0, count * 2, 4,
1094 shadow_offset, &shadow_rsc, &data);
1095 uint16_t *dst = data;
1096
1097 struct pipe_transfer *src_transfer = NULL;
1098 const uint32_t *src;
1099 if (info->has_user_indices) {
1100 src = (uint32_t*)((char*)info->index.user + offset);
1101 } else {
1102 src = pipe_buffer_map_range(pctx, &orig->base,
1103 offset,
1104 count * 4,
1105 PIPE_MAP_READ, &src_transfer);
1106 }
1107
1108 for (int i = 0; i < count; i++) {
1109 uint32_t src_index = src[i];
1110 assert(src_index <= 0xffff);
1111 dst[i] = src_index;
1112 }
1113
1114 if (src_transfer)
1115 pctx->buffer_unmap(pctx, src_transfer);
1116
1117 return shadow_rsc;
1118 }
1119
1120 static const struct u_transfer_vtbl transfer_vtbl = {
1121 .resource_create = vc4_resource_create,
1122 .resource_destroy = vc4_resource_destroy,
1123 .transfer_map = vc4_resource_transfer_map,
1124 .transfer_unmap = vc4_resource_transfer_unmap,
1125 .transfer_flush_region = u_default_transfer_flush_region,
1126 };
1127
1128 void
vc4_resource_screen_init(struct pipe_screen * pscreen)1129 vc4_resource_screen_init(struct pipe_screen *pscreen)
1130 {
1131 struct vc4_screen *screen = vc4_screen(pscreen);
1132
1133 pscreen->resource_create = vc4_resource_create;
1134 pscreen->resource_create_with_modifiers =
1135 vc4_resource_create_with_modifiers;
1136 pscreen->resource_from_handle = vc4_resource_from_handle;
1137 pscreen->resource_get_handle = vc4_resource_get_handle;
1138 pscreen->resource_get_param = vc4_resource_get_param;
1139 pscreen->resource_destroy = vc4_resource_destroy;
1140 pscreen->transfer_helper = u_transfer_helper_create(&transfer_vtbl,
1141 false, false,
1142 false, true,
1143 false);
1144
1145 /* Test if the kernel has GET_TILING; it will return -EINVAL if the
1146 * ioctl does not exist, but -ENOENT if we pass an impossible handle.
1147 * 0 cannot be a valid GEM object, so use that.
1148 */
1149 struct drm_vc4_get_tiling get_tiling = {
1150 .handle = 0x0,
1151 };
1152 int ret = vc4_ioctl(screen->fd, DRM_IOCTL_VC4_GET_TILING, &get_tiling);
1153 if (ret == -1 && errno == ENOENT)
1154 screen->has_tiling_ioctl = true;
1155 }
1156
1157 void
vc4_resource_context_init(struct pipe_context * pctx)1158 vc4_resource_context_init(struct pipe_context *pctx)
1159 {
1160 pctx->buffer_map = u_transfer_helper_transfer_map;
1161 pctx->texture_map = u_transfer_helper_transfer_map;
1162 pctx->transfer_flush_region = u_transfer_helper_transfer_flush_region;
1163 pctx->buffer_unmap = u_transfer_helper_transfer_unmap;
1164 pctx->texture_unmap = u_transfer_helper_transfer_unmap;
1165 pctx->buffer_subdata = u_default_buffer_subdata;
1166 pctx->texture_subdata = vc4_texture_subdata;
1167 pctx->create_surface = vc4_create_surface;
1168 pctx->surface_destroy = vc4_surface_destroy;
1169 pctx->resource_copy_region = util_resource_copy_region;
1170 pctx->blit = vc4_blit;
1171 pctx->flush_resource = vc4_flush_resource;
1172 }
1173