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_alloc(&vc4->transfer_pool);
157 if (!trans)
158 return NULL;
159
160 /* XXX: Handle DONTBLOCK, DISCARD_RANGE, PERSISTENT, COHERENT. */
161
162 /* slab_alloc_st() doesn't zero: */
163 memset(trans, 0, sizeof(*trans));
164 ptrans = &trans->base;
165
166 pipe_resource_reference(&ptrans->resource, prsc);
167 ptrans->level = level;
168 ptrans->usage = usage;
169 ptrans->box = *box;
170
171 if (usage & PIPE_MAP_UNSYNCHRONIZED)
172 buf = vc4_bo_map_unsynchronized(rsc->bo);
173 else
174 buf = vc4_bo_map(rsc->bo);
175 if (!buf) {
176 fprintf(stderr, "Failed to map bo\n");
177 goto fail;
178 }
179
180 *pptrans = ptrans;
181
182 struct vc4_resource_slice *slice = &rsc->slices[level];
183 if (rsc->tiled) {
184 /* No direct mappings of tiled, since we need to manually
185 * tile/untile.
186 */
187 if (usage & PIPE_MAP_DIRECTLY)
188 return NULL;
189
190 if (format == PIPE_FORMAT_ETC1_RGB8) {
191 /* ETC1 is arranged as 64-bit blocks, where each block
192 * is 4x4 pixels. Texture tiling operates on the
193 * 64-bit block the way it would an uncompressed
194 * pixels.
195 */
196 assert(!(ptrans->box.x & 3));
197 assert(!(ptrans->box.y & 3));
198 ptrans->box.x >>= 2;
199 ptrans->box.y >>= 2;
200 ptrans->box.width = (ptrans->box.width + 3) >> 2;
201 ptrans->box.height = (ptrans->box.height + 3) >> 2;
202 }
203
204 ptrans->stride = ptrans->box.width * rsc->cpp;
205 ptrans->layer_stride = ptrans->stride * ptrans->box.height;
206
207 trans->map = malloc(ptrans->layer_stride * ptrans->box.depth);
208
209 if (usage & PIPE_MAP_READ) {
210 vc4_load_tiled_image(trans->map, ptrans->stride,
211 buf + slice->offset +
212 ptrans->box.z * rsc->cube_map_stride,
213 slice->stride,
214 slice->tiling, rsc->cpp,
215 &ptrans->box);
216 }
217 return trans->map;
218 } else {
219 ptrans->stride = slice->stride;
220 ptrans->layer_stride = ptrans->stride;
221
222 return buf + slice->offset +
223 ptrans->box.y / util_format_get_blockheight(format) * ptrans->stride +
224 ptrans->box.x / util_format_get_blockwidth(format) * rsc->cpp +
225 ptrans->box.z * rsc->cube_map_stride;
226 }
227
228
229 fail:
230 vc4_resource_transfer_unmap(pctx, ptrans);
231 return NULL;
232 }
233
234 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)235 vc4_texture_subdata(struct pipe_context *pctx,
236 struct pipe_resource *prsc,
237 unsigned level,
238 unsigned usage,
239 const struct pipe_box *box,
240 const void *data,
241 unsigned stride,
242 unsigned layer_stride)
243 {
244 struct vc4_resource *rsc = vc4_resource(prsc);
245 struct vc4_resource_slice *slice = &rsc->slices[level];
246
247 /* For a direct mapping, we can just take the u_transfer path. */
248 if (!rsc->tiled ||
249 box->depth != 1 ||
250 (usage & PIPE_MAP_DISCARD_WHOLE_RESOURCE)) {
251 return u_default_texture_subdata(pctx, prsc, level, usage, box,
252 data, stride, layer_stride);
253 }
254
255 /* Otherwise, map and store the texture data directly into the tiled
256 * texture.
257 */
258 void *buf;
259 if (usage & PIPE_MAP_UNSYNCHRONIZED)
260 buf = vc4_bo_map_unsynchronized(rsc->bo);
261 else
262 buf = vc4_bo_map(rsc->bo);
263
264 vc4_store_tiled_image(buf + slice->offset +
265 box->z * rsc->cube_map_stride,
266 slice->stride,
267 (void *)data, stride,
268 slice->tiling, rsc->cpp,
269 box);
270 }
271
272 static void
vc4_resource_destroy(struct pipe_screen * pscreen,struct pipe_resource * prsc)273 vc4_resource_destroy(struct pipe_screen *pscreen,
274 struct pipe_resource *prsc)
275 {
276 struct vc4_screen *screen = vc4_screen(pscreen);
277 struct vc4_resource *rsc = vc4_resource(prsc);
278 vc4_bo_unreference(&rsc->bo);
279
280 if (rsc->scanout)
281 renderonly_scanout_destroy(rsc->scanout, screen->ro);
282
283 free(rsc);
284 }
285
286 static uint64_t
vc4_resource_modifier(struct vc4_resource * rsc)287 vc4_resource_modifier(struct vc4_resource *rsc)
288 {
289 if (rsc->tiled)
290 return DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED;
291 else
292 return DRM_FORMAT_MOD_LINEAR;
293 }
294
295 static bool
vc4_resource_get_handle(struct pipe_screen * pscreen,struct pipe_context * pctx,struct pipe_resource * prsc,struct winsys_handle * whandle,unsigned usage)296 vc4_resource_get_handle(struct pipe_screen *pscreen,
297 struct pipe_context *pctx,
298 struct pipe_resource *prsc,
299 struct winsys_handle *whandle,
300 unsigned usage)
301 {
302 struct vc4_screen *screen = vc4_screen(pscreen);
303 struct vc4_resource *rsc = vc4_resource(prsc);
304
305 whandle->stride = rsc->slices[0].stride;
306 whandle->offset = 0;
307 whandle->modifier = vc4_resource_modifier(rsc);
308
309 /* If we're passing some reference to our BO out to some other part of
310 * the system, then we can't do any optimizations about only us being
311 * the ones seeing it (like BO caching or shadow update avoidance).
312 */
313 rsc->bo->private = false;
314
315 switch (whandle->type) {
316 case WINSYS_HANDLE_TYPE_SHARED:
317 if (screen->ro) {
318 /* This could probably be supported, assuming that a
319 * control node was used for pl111.
320 */
321 fprintf(stderr, "flink unsupported with pl111\n");
322 return false;
323 }
324
325 return vc4_bo_flink(rsc->bo, &whandle->handle);
326 case WINSYS_HANDLE_TYPE_KMS:
327 if (screen->ro) {
328 return renderonly_get_handle(rsc->scanout, whandle);
329 }
330 whandle->handle = rsc->bo->handle;
331 return true;
332 case WINSYS_HANDLE_TYPE_FD:
333 /* FDs are cross-device, so we can export directly from vc4.
334 */
335 whandle->handle = vc4_bo_get_dmabuf(rsc->bo);
336 return whandle->handle != -1;
337 }
338
339 return false;
340 }
341
342 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)343 vc4_resource_get_param(struct pipe_screen *pscreen,
344 struct pipe_context *pctx, struct pipe_resource *prsc,
345 unsigned plane, unsigned layer, unsigned level,
346 enum pipe_resource_param param,
347 unsigned usage, uint64_t *value)
348 {
349 struct vc4_resource *rsc = vc4_resource(prsc);
350
351 switch (param) {
352 case PIPE_RESOURCE_PARAM_STRIDE:
353 *value = rsc->slices[level].stride;
354 return true;
355 case PIPE_RESOURCE_PARAM_OFFSET:
356 *value = 0;
357 return true;
358 case PIPE_RESOURCE_PARAM_MODIFIER:
359 *value = vc4_resource_modifier(rsc);
360 return true;
361 default:
362 return false;
363 }
364 }
365
366 static void
vc4_setup_slices(struct vc4_resource * rsc,const char * caller)367 vc4_setup_slices(struct vc4_resource *rsc, const char *caller)
368 {
369 struct pipe_resource *prsc = &rsc->base;
370 uint32_t width = prsc->width0;
371 uint32_t height = prsc->height0;
372 if (prsc->format == PIPE_FORMAT_ETC1_RGB8) {
373 width = (width + 3) >> 2;
374 height = (height + 3) >> 2;
375 }
376
377 uint32_t pot_width = util_next_power_of_two(width);
378 uint32_t pot_height = util_next_power_of_two(height);
379 uint32_t offset = 0;
380 uint32_t utile_w = vc4_utile_width(rsc->cpp);
381 uint32_t utile_h = vc4_utile_height(rsc->cpp);
382
383 for (int i = prsc->last_level; i >= 0; i--) {
384 struct vc4_resource_slice *slice = &rsc->slices[i];
385
386 uint32_t level_width, level_height;
387 if (i == 0) {
388 level_width = width;
389 level_height = height;
390 } else {
391 level_width = u_minify(pot_width, i);
392 level_height = u_minify(pot_height, i);
393 }
394
395 if (!rsc->tiled) {
396 slice->tiling = VC4_TILING_FORMAT_LINEAR;
397 if (prsc->nr_samples > 1) {
398 /* MSAA (4x) surfaces are stored as raw tile buffer contents. */
399 level_width = align(level_width, 32);
400 level_height = align(level_height, 32);
401 } else {
402 level_width = align(level_width, utile_w);
403 }
404 } else {
405 if (vc4_size_is_lt(level_width, level_height,
406 rsc->cpp)) {
407 slice->tiling = VC4_TILING_FORMAT_LT;
408 level_width = align(level_width, utile_w);
409 level_height = align(level_height, utile_h);
410 } else {
411 slice->tiling = VC4_TILING_FORMAT_T;
412 level_width = align(level_width,
413 4 * 2 * utile_w);
414 level_height = align(level_height,
415 4 * 2 * utile_h);
416 }
417 }
418
419 slice->offset = offset;
420 slice->stride = (level_width * rsc->cpp *
421 MAX2(prsc->nr_samples, 1));
422 slice->size = level_height * slice->stride;
423
424 offset += slice->size;
425
426 if (vc4_debug & VC4_DEBUG_SURFACE) {
427 static const char tiling_chars[] = {
428 [VC4_TILING_FORMAT_LINEAR] = 'R',
429 [VC4_TILING_FORMAT_LT] = 'L',
430 [VC4_TILING_FORMAT_T] = 'T'
431 };
432 fprintf(stderr,
433 "rsc %s %p (format %s: vc4 %d), %dx%d: "
434 "level %d (%c) -> %dx%d, stride %d@0x%08x\n",
435 caller, rsc,
436 util_format_short_name(prsc->format),
437 rsc->vc4_format,
438 prsc->width0, prsc->height0,
439 i, tiling_chars[slice->tiling],
440 level_width, level_height,
441 slice->stride, slice->offset);
442 }
443 }
444
445 /* The texture base pointer that has to point to level 0 doesn't have
446 * intra-page bits, so we have to align it, and thus shift up all the
447 * smaller slices.
448 */
449 uint32_t page_align_offset = (align(rsc->slices[0].offset, 4096) -
450 rsc->slices[0].offset);
451 if (page_align_offset) {
452 for (int i = 0; i <= prsc->last_level; i++)
453 rsc->slices[i].offset += page_align_offset;
454 }
455
456 /* Cube map faces appear as whole miptrees at a page-aligned offset
457 * from the first face's miptree.
458 */
459 if (prsc->target == PIPE_TEXTURE_CUBE) {
460 rsc->cube_map_stride = align(rsc->slices[0].offset +
461 rsc->slices[0].size, 4096);
462 }
463 }
464
465 static struct vc4_resource *
vc4_resource_setup(struct pipe_screen * pscreen,const struct pipe_resource * tmpl)466 vc4_resource_setup(struct pipe_screen *pscreen,
467 const struct pipe_resource *tmpl)
468 {
469 struct vc4_resource *rsc = CALLOC_STRUCT(vc4_resource);
470 if (!rsc)
471 return NULL;
472 struct pipe_resource *prsc = &rsc->base;
473
474 *prsc = *tmpl;
475
476 pipe_reference_init(&prsc->reference, 1);
477 prsc->screen = pscreen;
478
479 if (prsc->nr_samples <= 1)
480 rsc->cpp = util_format_get_blocksize(tmpl->format);
481 else
482 rsc->cpp = sizeof(uint32_t);
483
484 assert(rsc->cpp);
485
486 return rsc;
487 }
488
489 static enum vc4_texture_data_type
get_resource_texture_format(struct pipe_resource * prsc)490 get_resource_texture_format(struct pipe_resource *prsc)
491 {
492 struct vc4_resource *rsc = vc4_resource(prsc);
493 uint8_t format = vc4_get_tex_format(prsc->format);
494
495 if (!rsc->tiled) {
496 if (prsc->nr_samples > 1) {
497 return ~0;
498 } else {
499 if (format == VC4_TEXTURE_TYPE_RGBA8888)
500 return VC4_TEXTURE_TYPE_RGBA32R;
501 else
502 return ~0;
503 }
504 }
505
506 return format;
507 }
508
509 static struct pipe_resource *
vc4_resource_create_with_modifiers(struct pipe_screen * pscreen,const struct pipe_resource * tmpl,const uint64_t * modifiers,int count)510 vc4_resource_create_with_modifiers(struct pipe_screen *pscreen,
511 const struct pipe_resource *tmpl,
512 const uint64_t *modifiers,
513 int count)
514 {
515 struct vc4_screen *screen = vc4_screen(pscreen);
516 struct vc4_resource *rsc = vc4_resource_setup(pscreen, tmpl);
517 struct pipe_resource *prsc = &rsc->base;
518 bool linear_ok = drm_find_modifier(DRM_FORMAT_MOD_LINEAR, modifiers, count);
519 /* Use a tiled layout if we can, for better 3D performance. */
520 bool should_tile = true;
521
522 /* VBOs/PBOs are untiled (and 1 height). */
523 if (tmpl->target == PIPE_BUFFER)
524 should_tile = false;
525
526 /* MSAA buffers are linear. */
527 if (tmpl->nr_samples > 1)
528 should_tile = false;
529
530 /* No tiling when we're sharing with another device (pl111). */
531 if (screen->ro && (tmpl->bind & PIPE_BIND_SCANOUT))
532 should_tile = false;
533
534 /* Cursors are always linear, and the user can request linear as well.
535 */
536 if (tmpl->bind & (PIPE_BIND_LINEAR | PIPE_BIND_CURSOR))
537 should_tile = false;
538
539 /* No shared objects with LT format -- the kernel only has T-format
540 * metadata. LT objects are small enough it's not worth the trouble to
541 * give them metadata to tile.
542 */
543 if ((tmpl->bind & (PIPE_BIND_SHARED | PIPE_BIND_SCANOUT)) &&
544 vc4_size_is_lt(prsc->width0, prsc->height0, rsc->cpp))
545 should_tile = false;
546
547 /* If we're sharing or scanning out, we need the ioctl present to
548 * inform the kernel or the other side.
549 */
550 if ((tmpl->bind & (PIPE_BIND_SHARED |
551 PIPE_BIND_SCANOUT)) && !screen->has_tiling_ioctl)
552 should_tile = false;
553
554 /* No user-specified modifier; determine our own. */
555 if (count == 1 && modifiers[0] == DRM_FORMAT_MOD_INVALID) {
556 linear_ok = true;
557 rsc->tiled = should_tile;
558 } else if (should_tile &&
559 drm_find_modifier(DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED,
560 modifiers, count)) {
561 rsc->tiled = true;
562 } else if (linear_ok) {
563 rsc->tiled = false;
564 } else {
565 fprintf(stderr, "Unsupported modifier requested\n");
566 return NULL;
567 }
568
569 if (tmpl->target != PIPE_BUFFER)
570 rsc->vc4_format = get_resource_texture_format(prsc);
571
572 vc4_setup_slices(rsc, "create");
573 if (!vc4_resource_bo_alloc(rsc))
574 goto fail;
575
576 if (screen->has_tiling_ioctl) {
577 uint64_t modifier;
578 if (rsc->tiled)
579 modifier = DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED;
580 else
581 modifier = DRM_FORMAT_MOD_LINEAR;
582 struct drm_vc4_set_tiling set_tiling = {
583 .handle = rsc->bo->handle,
584 .modifier = modifier,
585 };
586 int ret = vc4_ioctl(screen->fd, DRM_IOCTL_VC4_SET_TILING,
587 &set_tiling);
588 if (ret != 0)
589 goto fail;
590 }
591
592 /* Set up the "scanout resource" (the dmabuf export of our buffer to
593 * the KMS handle) if the buffer might ever have
594 * resource_get_handle(WINSYS_HANDLE_TYPE_KMS) called on it.
595 * create_with_modifiers() doesn't give us usage flags, so we have to
596 * assume that all calls with modifiers are scanout-possible.
597 */
598 if (screen->ro &&
599 ((tmpl->bind & PIPE_BIND_SCANOUT) ||
600 !(count == 1 && modifiers[0] == DRM_FORMAT_MOD_INVALID))) {
601 rsc->scanout =
602 renderonly_scanout_for_resource(prsc, screen->ro, NULL);
603 if (!rsc->scanout)
604 goto fail;
605 }
606
607 vc4_bo_label(screen, rsc->bo, "%sresource %dx%d@%d/%d",
608 (tmpl->bind & PIPE_BIND_SCANOUT) ? "scanout " : "",
609 tmpl->width0, tmpl->height0,
610 rsc->cpp * 8, prsc->last_level);
611
612 return prsc;
613 fail:
614 vc4_resource_destroy(pscreen, prsc);
615 return NULL;
616 }
617
618 struct pipe_resource *
vc4_resource_create(struct pipe_screen * pscreen,const struct pipe_resource * tmpl)619 vc4_resource_create(struct pipe_screen *pscreen,
620 const struct pipe_resource *tmpl)
621 {
622 const uint64_t mod = DRM_FORMAT_MOD_INVALID;
623 return vc4_resource_create_with_modifiers(pscreen, tmpl, &mod, 1);
624 }
625
626 static struct pipe_resource *
vc4_resource_from_handle(struct pipe_screen * pscreen,const struct pipe_resource * tmpl,struct winsys_handle * whandle,unsigned usage)627 vc4_resource_from_handle(struct pipe_screen *pscreen,
628 const struct pipe_resource *tmpl,
629 struct winsys_handle *whandle,
630 unsigned usage)
631 {
632 struct vc4_screen *screen = vc4_screen(pscreen);
633 struct vc4_resource *rsc = vc4_resource_setup(pscreen, tmpl);
634 struct pipe_resource *prsc = &rsc->base;
635 struct vc4_resource_slice *slice = &rsc->slices[0];
636
637 if (!rsc)
638 return NULL;
639
640 switch (whandle->type) {
641 case WINSYS_HANDLE_TYPE_SHARED:
642 rsc->bo = vc4_bo_open_name(screen, whandle->handle);
643 break;
644 case WINSYS_HANDLE_TYPE_FD:
645 rsc->bo = vc4_bo_open_dmabuf(screen, whandle->handle);
646 break;
647 default:
648 fprintf(stderr,
649 "Attempt to import unsupported handle type %d\n",
650 whandle->type);
651 }
652
653 if (!rsc->bo)
654 goto fail;
655
656 struct drm_vc4_get_tiling get_tiling = {
657 .handle = rsc->bo->handle,
658 };
659 int ret = vc4_ioctl(screen->fd, DRM_IOCTL_VC4_GET_TILING, &get_tiling);
660
661 if (ret != 0) {
662 whandle->modifier = DRM_FORMAT_MOD_LINEAR;
663 } else if (whandle->modifier == DRM_FORMAT_MOD_INVALID) {
664 whandle->modifier = get_tiling.modifier;
665 } else if (whandle->modifier != get_tiling.modifier) {
666 fprintf(stderr,
667 "Modifier 0x%llx vs. tiling (0x%llx) mismatch\n",
668 (long long)whandle->modifier, get_tiling.modifier);
669 goto fail;
670 }
671
672 switch (whandle->modifier) {
673 case DRM_FORMAT_MOD_LINEAR:
674 rsc->tiled = false;
675 break;
676 case DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED:
677 rsc->tiled = true;
678 break;
679 default:
680 fprintf(stderr,
681 "Attempt to import unsupported modifier 0x%llx\n",
682 (long long)whandle->modifier);
683 goto fail;
684 }
685
686 rsc->vc4_format = get_resource_texture_format(prsc);
687 vc4_setup_slices(rsc, "import");
688
689 if (whandle->offset != 0) {
690 if (rsc->tiled) {
691 fprintf(stderr,
692 "Attempt to import unsupported "
693 "winsys offset %u\n",
694 whandle->offset);
695 goto fail;
696 }
697
698 rsc->slices[0].offset += whandle->offset;
699
700 if (rsc->slices[0].offset + rsc->slices[0].size >
701 rsc->bo->size) {
702 fprintf(stderr, "Attempt to import "
703 "with overflowing offset (%d + %d > %d)\n",
704 whandle->offset,
705 rsc->slices[0].size,
706 rsc->bo->size);
707 goto fail;
708 }
709 }
710
711 if (screen->ro) {
712 /* Make sure that renderonly has a handle to our buffer in the
713 * display's fd, so that a later renderonly_get_handle()
714 * returns correct handles or GEM names.
715 */
716 rsc->scanout =
717 renderonly_create_gpu_import_for_resource(prsc,
718 screen->ro,
719 NULL);
720 }
721
722 if (rsc->tiled && whandle->stride != slice->stride) {
723 static bool warned = false;
724 if (!warned) {
725 warned = true;
726 fprintf(stderr,
727 "Attempting to import %dx%d %s with "
728 "unsupported stride %d instead of %d\n",
729 prsc->width0, prsc->height0,
730 util_format_short_name(prsc->format),
731 whandle->stride,
732 slice->stride);
733 }
734 goto fail;
735 } else if (!rsc->tiled) {
736 slice->stride = whandle->stride;
737 }
738
739 return prsc;
740
741 fail:
742 vc4_resource_destroy(pscreen, prsc);
743 return NULL;
744 }
745
746 static struct pipe_surface *
vc4_create_surface(struct pipe_context * pctx,struct pipe_resource * ptex,const struct pipe_surface * surf_tmpl)747 vc4_create_surface(struct pipe_context *pctx,
748 struct pipe_resource *ptex,
749 const struct pipe_surface *surf_tmpl)
750 {
751 struct vc4_surface *surface = CALLOC_STRUCT(vc4_surface);
752 struct vc4_resource *rsc = vc4_resource(ptex);
753
754 if (!surface)
755 return NULL;
756
757 assert(surf_tmpl->u.tex.first_layer == surf_tmpl->u.tex.last_layer);
758
759 struct pipe_surface *psurf = &surface->base;
760 unsigned level = surf_tmpl->u.tex.level;
761
762 pipe_reference_init(&psurf->reference, 1);
763 pipe_resource_reference(&psurf->texture, ptex);
764
765 psurf->context = pctx;
766 psurf->format = surf_tmpl->format;
767 psurf->width = u_minify(ptex->width0, level);
768 psurf->height = u_minify(ptex->height0, level);
769 psurf->u.tex.level = level;
770 psurf->u.tex.first_layer = surf_tmpl->u.tex.first_layer;
771 psurf->u.tex.last_layer = surf_tmpl->u.tex.last_layer;
772 surface->offset = (rsc->slices[level].offset +
773 psurf->u.tex.first_layer * rsc->cube_map_stride);
774 surface->tiling = rsc->slices[level].tiling;
775
776 return &surface->base;
777 }
778
779 static void
vc4_surface_destroy(struct pipe_context * pctx,struct pipe_surface * psurf)780 vc4_surface_destroy(struct pipe_context *pctx, struct pipe_surface *psurf)
781 {
782 pipe_resource_reference(&psurf->texture, NULL);
783 FREE(psurf);
784 }
785
786 static void
vc4_dump_surface_non_msaa(struct pipe_surface * psurf)787 vc4_dump_surface_non_msaa(struct pipe_surface *psurf)
788 {
789 struct pipe_resource *prsc = psurf->texture;
790 struct vc4_resource *rsc = vc4_resource(prsc);
791 uint32_t *map = vc4_bo_map(rsc->bo);
792 uint32_t stride = rsc->slices[0].stride / 4;
793 uint32_t width = psurf->width;
794 uint32_t height = psurf->height;
795 uint32_t chunk_w = width / 79;
796 uint32_t chunk_h = height / 40;
797 uint32_t found_colors[10] = { 0 };
798 uint32_t num_found_colors = 0;
799
800 if (rsc->vc4_format != VC4_TEXTURE_TYPE_RGBA32R) {
801 fprintf(stderr, "%s: Unsupported format %s\n",
802 __func__, util_format_short_name(psurf->format));
803 return;
804 }
805
806 for (int by = 0; by < height; by += chunk_h) {
807 for (int bx = 0; bx < width; bx += chunk_w) {
808 int all_found_color = -1; /* nothing found */
809
810 for (int y = by; y < MIN2(height, by + chunk_h); y++) {
811 for (int x = bx; x < MIN2(width, bx + chunk_w); x++) {
812 uint32_t pix = map[y * stride + x];
813
814 int i;
815 for (i = 0; i < num_found_colors; i++) {
816 if (pix == found_colors[i])
817 break;
818 }
819 if (i == num_found_colors &&
820 num_found_colors <
821 ARRAY_SIZE(found_colors)) {
822 found_colors[num_found_colors++] = pix;
823 }
824
825 if (i < num_found_colors) {
826 if (all_found_color == -1)
827 all_found_color = i;
828 else if (i != all_found_color)
829 all_found_color = ARRAY_SIZE(found_colors);
830 }
831 }
832 }
833 /* If all pixels for this chunk have a consistent
834 * value, then print a character for it. Either a
835 * fixed name (particularly common for piglit tests),
836 * or a runtime-generated number.
837 */
838 if (all_found_color >= 0 &&
839 all_found_color < ARRAY_SIZE(found_colors)) {
840 static const struct {
841 uint32_t val;
842 const char *c;
843 } named_colors[] = {
844 { 0xff000000, "█" },
845 { 0x00000000, "█" },
846 { 0xffff0000, "r" },
847 { 0xff00ff00, "g" },
848 { 0xff0000ff, "b" },
849 { 0xffffffff, "w" },
850 };
851 int i;
852 for (i = 0; i < ARRAY_SIZE(named_colors); i++) {
853 if (named_colors[i].val ==
854 found_colors[all_found_color]) {
855 fprintf(stderr, "%s",
856 named_colors[i].c);
857 break;
858 }
859 }
860 /* For unnamed colors, print a number and the
861 * numbers will have values printed at the
862 * end.
863 */
864 if (i == ARRAY_SIZE(named_colors)) {
865 fprintf(stderr, "%c",
866 '0' + all_found_color);
867 }
868 } else {
869 /* If there's no consistent color, print this.
870 */
871 fprintf(stderr, ".");
872 }
873 }
874 fprintf(stderr, "\n");
875 }
876
877 for (int i = 0; i < num_found_colors; i++) {
878 fprintf(stderr, "color %d: 0x%08x\n", i, found_colors[i]);
879 }
880 }
881
882 static uint32_t
vc4_surface_msaa_get_sample(struct pipe_surface * psurf,uint32_t x,uint32_t y,uint32_t sample)883 vc4_surface_msaa_get_sample(struct pipe_surface *psurf,
884 uint32_t x, uint32_t y, uint32_t sample)
885 {
886 struct pipe_resource *prsc = psurf->texture;
887 struct vc4_resource *rsc = vc4_resource(prsc);
888 uint32_t tile_w = 32, tile_h = 32;
889 uint32_t tiles_w = DIV_ROUND_UP(psurf->width, 32);
890
891 uint32_t tile_x = x / tile_w;
892 uint32_t tile_y = y / tile_h;
893 uint32_t *tile = (vc4_bo_map(rsc->bo) +
894 VC4_TILE_BUFFER_SIZE * (tile_y * tiles_w + tile_x));
895 uint32_t subtile_x = x % tile_w;
896 uint32_t subtile_y = y % tile_h;
897
898 uint32_t quad_samples = VC4_MAX_SAMPLES * 4;
899 uint32_t tile_stride = quad_samples * tile_w / 2;
900
901 return *((uint32_t *)tile +
902 (subtile_y >> 1) * tile_stride +
903 (subtile_x >> 1) * quad_samples +
904 ((subtile_y & 1) << 1) +
905 (subtile_x & 1) +
906 sample);
907 }
908
909 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)910 vc4_dump_surface_msaa_char(struct pipe_surface *psurf,
911 uint32_t start_x, uint32_t start_y,
912 uint32_t w, uint32_t h)
913 {
914 bool all_same_color = true;
915 uint32_t all_pix = 0;
916
917 for (int y = start_y; y < start_y + h; y++) {
918 for (int x = start_x; x < start_x + w; x++) {
919 for (int s = 0; s < VC4_MAX_SAMPLES; s++) {
920 uint32_t pix = vc4_surface_msaa_get_sample(psurf,
921 x, y,
922 s);
923 if (x == start_x && y == start_y)
924 all_pix = pix;
925 else if (all_pix != pix)
926 all_same_color = false;
927 }
928 }
929 }
930 if (all_same_color) {
931 static const struct {
932 uint32_t val;
933 const char *c;
934 } named_colors[] = {
935 { 0xff000000, "█" },
936 { 0x00000000, "█" },
937 { 0xffff0000, "r" },
938 { 0xff00ff00, "g" },
939 { 0xff0000ff, "b" },
940 { 0xffffffff, "w" },
941 };
942 int i;
943 for (i = 0; i < ARRAY_SIZE(named_colors); i++) {
944 if (named_colors[i].val == all_pix) {
945 fprintf(stderr, "%s",
946 named_colors[i].c);
947 return;
948 }
949 }
950 fprintf(stderr, "x");
951 } else {
952 fprintf(stderr, ".");
953 }
954 }
955
956 static void
vc4_dump_surface_msaa(struct pipe_surface * psurf)957 vc4_dump_surface_msaa(struct pipe_surface *psurf)
958 {
959 uint32_t tile_w = 32, tile_h = 32;
960 uint32_t tiles_w = DIV_ROUND_UP(psurf->width, tile_w);
961 uint32_t tiles_h = DIV_ROUND_UP(psurf->height, tile_h);
962 uint32_t char_w = 140, char_h = 60;
963 uint32_t char_w_per_tile = char_w / tiles_w - 1;
964 uint32_t char_h_per_tile = char_h / tiles_h - 1;
965
966 fprintf(stderr, "Surface: %dx%d (%dx MSAA)\n",
967 psurf->width, psurf->height, psurf->texture->nr_samples);
968
969 for (int x = 0; x < (char_w_per_tile + 1) * tiles_w; x++)
970 fprintf(stderr, "-");
971 fprintf(stderr, "\n");
972
973 for (int ty = 0; ty < psurf->height; ty += tile_h) {
974 for (int y = 0; y < char_h_per_tile; y++) {
975
976 for (int tx = 0; tx < psurf->width; tx += tile_w) {
977 for (int x = 0; x < char_w_per_tile; x++) {
978 uint32_t bx1 = (x * tile_w /
979 char_w_per_tile);
980 uint32_t bx2 = ((x + 1) * tile_w /
981 char_w_per_tile);
982 uint32_t by1 = (y * tile_h /
983 char_h_per_tile);
984 uint32_t by2 = ((y + 1) * tile_h /
985 char_h_per_tile);
986
987 vc4_dump_surface_msaa_char(psurf,
988 tx + bx1,
989 ty + by1,
990 bx2 - bx1,
991 by2 - by1);
992 }
993 fprintf(stderr, "|");
994 }
995 fprintf(stderr, "\n");
996 }
997
998 for (int x = 0; x < (char_w_per_tile + 1) * tiles_w; x++)
999 fprintf(stderr, "-");
1000 fprintf(stderr, "\n");
1001 }
1002 }
1003
1004 /** Debug routine to dump the contents of an 8888 surface to the console */
1005 void
vc4_dump_surface(struct pipe_surface * psurf)1006 vc4_dump_surface(struct pipe_surface *psurf)
1007 {
1008 if (!psurf)
1009 return;
1010
1011 if (psurf->texture->nr_samples > 1)
1012 vc4_dump_surface_msaa(psurf);
1013 else
1014 vc4_dump_surface_non_msaa(psurf);
1015 }
1016
1017 static void
vc4_flush_resource(struct pipe_context * pctx,struct pipe_resource * resource)1018 vc4_flush_resource(struct pipe_context *pctx, struct pipe_resource *resource)
1019 {
1020 /* All calls to flush_resource are followed by a flush of the context,
1021 * so there's nothing to do.
1022 */
1023 }
1024
1025 void
vc4_update_shadow_baselevel_texture(struct pipe_context * pctx,struct pipe_sampler_view * pview)1026 vc4_update_shadow_baselevel_texture(struct pipe_context *pctx,
1027 struct pipe_sampler_view *pview)
1028 {
1029 struct vc4_context *vc4 = vc4_context(pctx);
1030 struct vc4_sampler_view *view = vc4_sampler_view(pview);
1031 struct vc4_resource *shadow = vc4_resource(view->texture);
1032 struct vc4_resource *orig = vc4_resource(pview->texture);
1033
1034 assert(view->texture != pview->texture);
1035
1036 if (shadow->writes == orig->writes && orig->bo->private)
1037 return;
1038
1039 perf_debug("Updating %dx%d@%d shadow texture due to %s\n",
1040 orig->base.width0, orig->base.height0,
1041 pview->u.tex.first_level,
1042 pview->u.tex.first_level ? "base level" : "raster layout");
1043
1044 for (int i = 0; i <= shadow->base.last_level; i++) {
1045 unsigned width = u_minify(shadow->base.width0, i);
1046 unsigned height = u_minify(shadow->base.height0, i);
1047 struct pipe_blit_info info = {
1048 .dst = {
1049 .resource = &shadow->base,
1050 .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 = shadow->base.format,
1060 },
1061 .src = {
1062 .resource = &orig->base,
1063 .level = pview->u.tex.first_level + i,
1064 .box = {
1065 .x = 0,
1066 .y = 0,
1067 .z = 0,
1068 .width = width,
1069 .height = height,
1070 .depth = 1,
1071 },
1072 .format = orig->base.format,
1073 },
1074 .mask = ~0,
1075 };
1076 pctx->blit(pctx, &info);
1077 }
1078
1079 shadow->writes = orig->writes;
1080 }
1081
1082 /**
1083 * Converts a 4-byte index buffer to 2 bytes.
1084 *
1085 * Since GLES2 only has support for 1 and 2-byte indices, the hardware doesn't
1086 * include 4-byte index support, and we have to shrink it down.
1087 *
1088 * There's no fallback support for when indices end up being larger than 2^16,
1089 * though it will at least assertion fail. Also, if the original index data
1090 * was in user memory, it would be nice to not have uploaded it to a VBO
1091 * before translating.
1092 */
1093 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)1094 vc4_get_shadow_index_buffer(struct pipe_context *pctx,
1095 const struct pipe_draw_info *info,
1096 uint32_t offset,
1097 uint32_t count,
1098 uint32_t *shadow_offset)
1099 {
1100 struct vc4_context *vc4 = vc4_context(pctx);
1101 struct vc4_resource *orig = vc4_resource(info->index.resource);
1102 perf_debug("Fallback conversion for %d uint indices\n", count);
1103
1104 void *data;
1105 struct pipe_resource *shadow_rsc = NULL;
1106 u_upload_alloc(vc4->uploader, 0, count * 2, 4,
1107 shadow_offset, &shadow_rsc, &data);
1108 uint16_t *dst = data;
1109
1110 struct pipe_transfer *src_transfer = NULL;
1111 const uint32_t *src;
1112 if (info->has_user_indices) {
1113 src = (uint32_t*)((char*)info->index.user + offset);
1114 } else {
1115 src = pipe_buffer_map_range(pctx, &orig->base,
1116 offset,
1117 count * 4,
1118 PIPE_MAP_READ, &src_transfer);
1119 }
1120
1121 for (int i = 0; i < count; i++) {
1122 uint32_t src_index = src[i];
1123 assert(src_index <= 0xffff);
1124 dst[i] = src_index;
1125 }
1126
1127 if (src_transfer)
1128 pctx->buffer_unmap(pctx, src_transfer);
1129
1130 return shadow_rsc;
1131 }
1132
1133 static const struct u_transfer_vtbl transfer_vtbl = {
1134 .resource_create = vc4_resource_create,
1135 .resource_destroy = vc4_resource_destroy,
1136 .transfer_map = vc4_resource_transfer_map,
1137 .transfer_unmap = vc4_resource_transfer_unmap,
1138 .transfer_flush_region = u_default_transfer_flush_region,
1139 };
1140
1141 void
vc4_resource_screen_init(struct pipe_screen * pscreen)1142 vc4_resource_screen_init(struct pipe_screen *pscreen)
1143 {
1144 struct vc4_screen *screen = vc4_screen(pscreen);
1145
1146 pscreen->resource_create = vc4_resource_create;
1147 pscreen->resource_create_with_modifiers =
1148 vc4_resource_create_with_modifiers;
1149 pscreen->resource_from_handle = vc4_resource_from_handle;
1150 pscreen->resource_get_handle = vc4_resource_get_handle;
1151 pscreen->resource_get_param = vc4_resource_get_param;
1152 pscreen->resource_destroy = vc4_resource_destroy;
1153 pscreen->transfer_helper = u_transfer_helper_create(&transfer_vtbl,
1154 false, false,
1155 false, true);
1156
1157 /* Test if the kernel has GET_TILING; it will return -EINVAL if the
1158 * ioctl does not exist, but -ENOENT if we pass an impossible handle.
1159 * 0 cannot be a valid GEM object, so use that.
1160 */
1161 struct drm_vc4_get_tiling get_tiling = {
1162 .handle = 0x0,
1163 };
1164 int ret = vc4_ioctl(screen->fd, DRM_IOCTL_VC4_GET_TILING, &get_tiling);
1165 if (ret == -1 && errno == ENOENT)
1166 screen->has_tiling_ioctl = true;
1167 }
1168
1169 void
vc4_resource_context_init(struct pipe_context * pctx)1170 vc4_resource_context_init(struct pipe_context *pctx)
1171 {
1172 pctx->buffer_map = u_transfer_helper_transfer_map;
1173 pctx->texture_map = u_transfer_helper_transfer_map;
1174 pctx->transfer_flush_region = u_transfer_helper_transfer_flush_region;
1175 pctx->buffer_unmap = u_transfer_helper_transfer_unmap;
1176 pctx->texture_unmap = u_transfer_helper_transfer_unmap;
1177 pctx->buffer_subdata = u_default_buffer_subdata;
1178 pctx->texture_subdata = vc4_texture_subdata;
1179 pctx->create_surface = vc4_create_surface;
1180 pctx->surface_destroy = vc4_surface_destroy;
1181 pctx->resource_copy_region = util_resource_copy_region;
1182 pctx->blit = vc4_blit;
1183 pctx->flush_resource = vc4_flush_resource;
1184 }
1185