1 /*
2 * Copyright (c) 2012-2015 Etnaviv Project
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, sub license,
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 (including the
12 * next paragraph) shall be included in all copies or substantial portions
13 * of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 *
23 * Authors:
24 * Wladimir J. van der Laan <laanwj@gmail.com>
25 */
26
27 #include "etnaviv_resource.h"
28
29 #include "hw/common.xml.h"
30
31 #include "etnaviv_context.h"
32 #include "etnaviv_debug.h"
33 #include "etnaviv_screen.h"
34 #include "etnaviv_translate.h"
35
36 #include "util/u_inlines.h"
37 #include "util/u_memory.h"
38
39 #include <drm_fourcc.h>
40
41 #ifndef DRM_FORMAT_MOD_INVALID
42 #define DRM_FORMAT_MOD_INVALID ((1ULL<<56) - 1)
43 #endif
44
modifier_to_layout(uint64_t modifier)45 static enum etna_surface_layout modifier_to_layout(uint64_t modifier)
46 {
47 switch (modifier) {
48 case DRM_FORMAT_MOD_VIVANTE_TILED:
49 return ETNA_LAYOUT_TILED;
50 case DRM_FORMAT_MOD_VIVANTE_SUPER_TILED:
51 return ETNA_LAYOUT_SUPER_TILED;
52 case DRM_FORMAT_MOD_VIVANTE_SPLIT_TILED:
53 return ETNA_LAYOUT_MULTI_TILED;
54 case DRM_FORMAT_MOD_VIVANTE_SPLIT_SUPER_TILED:
55 return ETNA_LAYOUT_MULTI_SUPERTILED;
56 case DRM_FORMAT_MOD_LINEAR:
57 default:
58 return ETNA_LAYOUT_LINEAR;
59 }
60 }
61
layout_to_modifier(enum etna_surface_layout layout)62 static uint64_t layout_to_modifier(enum etna_surface_layout layout)
63 {
64 switch (layout) {
65 case ETNA_LAYOUT_TILED:
66 return DRM_FORMAT_MOD_VIVANTE_TILED;
67 case ETNA_LAYOUT_SUPER_TILED:
68 return DRM_FORMAT_MOD_VIVANTE_SUPER_TILED;
69 case ETNA_LAYOUT_MULTI_TILED:
70 return DRM_FORMAT_MOD_VIVANTE_SPLIT_TILED;
71 case ETNA_LAYOUT_MULTI_SUPERTILED:
72 return DRM_FORMAT_MOD_VIVANTE_SPLIT_SUPER_TILED;
73 case ETNA_LAYOUT_LINEAR:
74 return DRM_FORMAT_MOD_LINEAR;
75 default:
76 return DRM_FORMAT_MOD_INVALID;
77 }
78 }
79
80 /* A tile is 4x4 pixels, having 'screen->specs.bits_per_tile' of tile status.
81 * So, in a buffer of N pixels, there are N / (4 * 4) tiles.
82 * We need N * screen->specs.bits_per_tile / (4 * 4) bits of tile status, or
83 * N * screen->specs.bits_per_tile / (4 * 4 * 8) bytes.
84 */
85 bool
etna_screen_resource_alloc_ts(struct pipe_screen * pscreen,struct etna_resource * rsc)86 etna_screen_resource_alloc_ts(struct pipe_screen *pscreen,
87 struct etna_resource *rsc)
88 {
89 struct etna_screen *screen = etna_screen(pscreen);
90 size_t rt_ts_size, ts_layer_stride, pixels;
91
92 assert(!rsc->ts_bo);
93
94 /* TS only for level 0 -- XXX is this formula correct? */
95 pixels = rsc->levels[0].layer_stride / util_format_get_blocksize(rsc->base.format);
96 ts_layer_stride = align(pixels * screen->specs.bits_per_tile / 0x80,
97 0x100 * screen->specs.pixel_pipes);
98 rt_ts_size = ts_layer_stride * rsc->base.array_size;
99 if (rt_ts_size == 0)
100 return true;
101
102 DBG_F(ETNA_DBG_RESOURCE_MSGS, "%p: Allocating tile status of size %zu",
103 rsc, rt_ts_size);
104
105 struct etna_bo *rt_ts;
106 rt_ts = etna_bo_new(screen->dev, rt_ts_size, DRM_ETNA_GEM_CACHE_WC);
107
108 if (unlikely(!rt_ts)) {
109 BUG("Problem allocating tile status for resource");
110 return false;
111 }
112
113 rsc->ts_bo = rt_ts;
114 rsc->levels[0].ts_offset = 0;
115 rsc->levels[0].ts_layer_stride = ts_layer_stride;
116 rsc->levels[0].ts_size = rt_ts_size;
117
118 /* It is important to initialize the TS, as random pattern
119 * can result in crashes. Do this on the CPU as this only happens once
120 * per surface anyway and it's a small area, so it may not be worth
121 * queuing this to the GPU. */
122 void *ts_map = etna_bo_map(rt_ts);
123 memset(ts_map, screen->specs.ts_clear_value, rt_ts_size);
124
125 return true;
126 }
127
128 static boolean
etna_screen_can_create_resource(struct pipe_screen * pscreen,const struct pipe_resource * templat)129 etna_screen_can_create_resource(struct pipe_screen *pscreen,
130 const struct pipe_resource *templat)
131 {
132 struct etna_screen *screen = etna_screen(pscreen);
133 if (!translate_samples_to_xyscale(templat->nr_samples, NULL, NULL, NULL))
134 return false;
135
136 /* templat->bind is not set here, so we must use the minimum sizes */
137 uint max_size =
138 MIN2(screen->specs.max_rendertarget_size, screen->specs.max_texture_size);
139
140 if (templat->width0 > max_size || templat->height0 > max_size)
141 return false;
142
143 return true;
144 }
145
146 static unsigned
setup_miptree(struct etna_resource * rsc,unsigned paddingX,unsigned paddingY,unsigned msaa_xscale,unsigned msaa_yscale)147 setup_miptree(struct etna_resource *rsc, unsigned paddingX, unsigned paddingY,
148 unsigned msaa_xscale, unsigned msaa_yscale)
149 {
150 struct pipe_resource *prsc = &rsc->base;
151 unsigned level, size = 0;
152 unsigned width = prsc->width0;
153 unsigned height = prsc->height0;
154 unsigned depth = prsc->depth0;
155
156 for (level = 0; level <= prsc->last_level; level++) {
157 struct etna_resource_level *mip = &rsc->levels[level];
158
159 mip->width = width;
160 mip->height = height;
161 mip->padded_width = align(width * msaa_xscale, paddingX);
162 mip->padded_height = align(height * msaa_yscale, paddingY);
163 mip->stride = util_format_get_stride(prsc->format, mip->padded_width);
164 mip->offset = size;
165 mip->layer_stride = mip->stride * util_format_get_nblocksy(prsc->format, mip->padded_height);
166 mip->size = prsc->array_size * mip->layer_stride;
167
168 /* align levels to 64 bytes to be able to render to them */
169 size += align(mip->size, ETNA_PE_ALIGNMENT) * depth;
170
171 width = u_minify(width, 1);
172 height = u_minify(height, 1);
173 depth = u_minify(depth, 1);
174 }
175
176 return size;
177 }
178
179 /* Create a new resource object, using the given template info */
180 struct pipe_resource *
etna_resource_alloc(struct pipe_screen * pscreen,unsigned layout,uint64_t modifier,const struct pipe_resource * templat)181 etna_resource_alloc(struct pipe_screen *pscreen, unsigned layout,
182 uint64_t modifier, const struct pipe_resource *templat)
183 {
184 struct etna_screen *screen = etna_screen(pscreen);
185 struct etna_resource *rsc;
186 unsigned size;
187
188 DBG_F(ETNA_DBG_RESOURCE_MSGS,
189 "target=%d, format=%s, %ux%ux%u, array_size=%u, "
190 "last_level=%u, nr_samples=%u, usage=%u, bind=%x, flags=%x",
191 templat->target, util_format_name(templat->format), templat->width0,
192 templat->height0, templat->depth0, templat->array_size,
193 templat->last_level, templat->nr_samples, templat->usage,
194 templat->bind, templat->flags);
195
196 /* Determine scaling for antialiasing, allow override using debug flag */
197 int nr_samples = templat->nr_samples;
198 if ((templat->bind & (PIPE_BIND_RENDER_TARGET | PIPE_BIND_DEPTH_STENCIL)) &&
199 !(templat->bind & PIPE_BIND_SAMPLER_VIEW)) {
200 if (DBG_ENABLED(ETNA_DBG_MSAA_2X))
201 nr_samples = 2;
202 if (DBG_ENABLED(ETNA_DBG_MSAA_4X))
203 nr_samples = 4;
204 }
205
206 int msaa_xscale = 1, msaa_yscale = 1;
207 if (!translate_samples_to_xyscale(nr_samples, &msaa_xscale, &msaa_yscale, NULL)) {
208 /* Number of samples not supported */
209 return NULL;
210 }
211
212 /* Determine needed padding (alignment of height/width) */
213 unsigned paddingX = 0, paddingY = 0;
214 unsigned halign = TEXTURE_HALIGN_FOUR;
215 if (!util_format_is_compressed(templat->format)) {
216 /* If we have the TEXTURE_HALIGN feature, we can always align to the
217 * resolve engine's width. If not, we must not align resources used
218 * only for textures. If this GPU uses the BLT engine, never do RS align.
219 */
220 bool rs_align = screen->specs.use_blt ? false : (
221 VIV_FEATURE(screen, chipMinorFeatures1, TEXTURE_HALIGN) ||
222 !etna_resource_sampler_only(templat));
223 etna_layout_multiple(layout, screen->specs.pixel_pipes, rs_align, &paddingX,
224 &paddingY, &halign);
225 assert(paddingX && paddingY);
226 } else {
227 /* Compressed textures are padded to their block size, but we don't have
228 * to do anything special for that. */
229 paddingX = 1;
230 paddingY = 1;
231 }
232
233 if (!screen->specs.use_blt && templat->target != PIPE_BUFFER)
234 etna_adjust_rs_align(screen->specs.pixel_pipes, NULL, &paddingY);
235
236 if (templat->bind & PIPE_BIND_SCANOUT) {
237 struct pipe_resource scanout_templat = *templat;
238 struct renderonly_scanout *scanout;
239 struct winsys_handle handle;
240
241 /* pad scanout buffer size to be compatible with the RS */
242 if (!screen->specs.use_blt && modifier == DRM_FORMAT_MOD_LINEAR)
243 etna_adjust_rs_align(screen->specs.pixel_pipes, &paddingX, &paddingY);
244
245 scanout_templat.width0 = align(scanout_templat.width0, paddingX);
246 scanout_templat.height0 = align(scanout_templat.height0, paddingY);
247
248 scanout = renderonly_scanout_for_resource(&scanout_templat,
249 screen->ro, &handle);
250 if (!scanout)
251 return NULL;
252
253 assert(handle.type == DRM_API_HANDLE_TYPE_FD);
254 handle.modifier = modifier;
255 rsc = etna_resource(pscreen->resource_from_handle(pscreen, templat,
256 &handle,
257 PIPE_HANDLE_USAGE_WRITE));
258 close(handle.handle);
259 if (!rsc)
260 return NULL;
261
262 rsc->scanout = scanout;
263
264 return &rsc->base;
265 }
266
267 rsc = CALLOC_STRUCT(etna_resource);
268 if (!rsc)
269 return NULL;
270
271 rsc->base = *templat;
272 rsc->base.screen = pscreen;
273 rsc->base.nr_samples = nr_samples;
274 rsc->layout = layout;
275 rsc->halign = halign;
276
277 pipe_reference_init(&rsc->base.reference, 1);
278 list_inithead(&rsc->list);
279
280 size = setup_miptree(rsc, paddingX, paddingY, msaa_xscale, msaa_yscale);
281
282 uint32_t flags = DRM_ETNA_GEM_CACHE_WC;
283 if (templat->bind & PIPE_BIND_VERTEX_BUFFER)
284 flags |= DRM_ETNA_GEM_FORCE_MMU;
285 struct etna_bo *bo = etna_bo_new(screen->dev, size, flags);
286 if (unlikely(bo == NULL)) {
287 BUG("Problem allocating video memory for resource");
288 goto free_rsc;
289 }
290
291 rsc->bo = bo;
292 rsc->ts_bo = 0; /* TS is only created when first bound to surface */
293
294 if (DBG_ENABLED(ETNA_DBG_ZERO)) {
295 void *map = etna_bo_map(bo);
296 memset(map, 0, size);
297 }
298
299 return &rsc->base;
300
301 free_rsc:
302 FREE(rsc);
303 return NULL;
304 }
305
306 static struct pipe_resource *
etna_resource_create(struct pipe_screen * pscreen,const struct pipe_resource * templat)307 etna_resource_create(struct pipe_screen *pscreen,
308 const struct pipe_resource *templat)
309 {
310 struct etna_screen *screen = etna_screen(pscreen);
311
312 /* Figure out what tiling to use -- for now, assume that texture cannot be linear.
313 * there is a capability LINEAR_TEXTURE_SUPPORT (supported on gc880 and
314 * gc2000 at least), but not sure how it works.
315 * Buffers always have LINEAR layout.
316 */
317 unsigned layout = ETNA_LAYOUT_LINEAR;
318 if (etna_resource_sampler_only(templat)) {
319 /* The buffer is only used for texturing, so create something
320 * directly compatible with the sampler. Such a buffer can
321 * never be rendered to. */
322 layout = ETNA_LAYOUT_TILED;
323
324 if (util_format_is_compressed(templat->format))
325 layout = ETNA_LAYOUT_LINEAR;
326 } else if (templat->target != PIPE_BUFFER) {
327 bool want_multitiled = false;
328 bool want_supertiled = screen->specs.can_supertile;
329
330 /* When this GPU supports single-buffer rendering, don't ever enable
331 * multi-tiling. This replicates the blob behavior on GC3000.
332 */
333 if (!screen->specs.single_buffer)
334 want_multitiled = screen->specs.pixel_pipes > 1;
335
336 /* Keep single byte blocksized resources as tiled, since we
337 * are unable to use the RS blit to de-tile them. However,
338 * if they're used as a render target or depth/stencil, they
339 * must be multi-tiled for GPUs with multiple pixel pipes.
340 * Ignore depth/stencil here, but it is an error for a render
341 * target.
342 */
343 if (util_format_get_blocksize(templat->format) == 1 &&
344 !(templat->bind & PIPE_BIND_DEPTH_STENCIL)) {
345 assert(!(templat->bind & PIPE_BIND_RENDER_TARGET && want_multitiled));
346 want_multitiled = want_supertiled = false;
347 }
348
349 layout = ETNA_LAYOUT_BIT_TILE;
350 if (want_multitiled)
351 layout |= ETNA_LAYOUT_BIT_MULTI;
352 if (want_supertiled)
353 layout |= ETNA_LAYOUT_BIT_SUPER;
354 }
355
356 if (templat->target == PIPE_TEXTURE_3D)
357 layout = ETNA_LAYOUT_LINEAR;
358
359 /* modifier is only used for scanout surfaces, so safe to use LINEAR here */
360 return etna_resource_alloc(pscreen, layout, DRM_FORMAT_MOD_LINEAR, templat);
361 }
362
363 enum modifier_priority {
364 MODIFIER_PRIORITY_INVALID = 0,
365 MODIFIER_PRIORITY_LINEAR,
366 MODIFIER_PRIORITY_SPLIT_TILED,
367 MODIFIER_PRIORITY_SPLIT_SUPER_TILED,
368 MODIFIER_PRIORITY_TILED,
369 MODIFIER_PRIORITY_SUPER_TILED,
370 };
371
372 const uint64_t priority_to_modifier[] = {
373 [MODIFIER_PRIORITY_INVALID] = DRM_FORMAT_MOD_INVALID,
374 [MODIFIER_PRIORITY_LINEAR] = DRM_FORMAT_MOD_LINEAR,
375 [MODIFIER_PRIORITY_SPLIT_TILED] = DRM_FORMAT_MOD_VIVANTE_SPLIT_TILED,
376 [MODIFIER_PRIORITY_SPLIT_SUPER_TILED] = DRM_FORMAT_MOD_VIVANTE_SPLIT_SUPER_TILED,
377 [MODIFIER_PRIORITY_TILED] = DRM_FORMAT_MOD_VIVANTE_TILED,
378 [MODIFIER_PRIORITY_SUPER_TILED] = DRM_FORMAT_MOD_VIVANTE_SUPER_TILED,
379 };
380
381 static uint64_t
select_best_modifier(const struct etna_screen * screen,const uint64_t * modifiers,const unsigned count)382 select_best_modifier(const struct etna_screen * screen,
383 const uint64_t *modifiers, const unsigned count)
384 {
385 enum modifier_priority prio = MODIFIER_PRIORITY_INVALID;
386
387 for (int i = 0; i < count; i++) {
388 switch (modifiers[i]) {
389 case DRM_FORMAT_MOD_VIVANTE_SUPER_TILED:
390 if ((screen->specs.pixel_pipes > 1 && !screen->specs.single_buffer) ||
391 !screen->specs.can_supertile)
392 break;
393 prio = MAX2(prio, MODIFIER_PRIORITY_SUPER_TILED);
394 break;
395 case DRM_FORMAT_MOD_VIVANTE_TILED:
396 if (screen->specs.pixel_pipes > 1 && !screen->specs.single_buffer)
397 break;
398 prio = MAX2(prio, MODIFIER_PRIORITY_TILED);
399 break;
400 case DRM_FORMAT_MOD_VIVANTE_SPLIT_SUPER_TILED:
401 if ((screen->specs.pixel_pipes < 2) || !screen->specs.can_supertile)
402 break;
403 prio = MAX2(prio, MODIFIER_PRIORITY_SPLIT_SUPER_TILED);
404 break;
405 case DRM_FORMAT_MOD_VIVANTE_SPLIT_TILED:
406 if (screen->specs.pixel_pipes < 2)
407 break;
408 prio = MAX2(prio, MODIFIER_PRIORITY_SPLIT_TILED);
409 break;
410 case DRM_FORMAT_MOD_LINEAR:
411 prio = MAX2(prio, MODIFIER_PRIORITY_LINEAR);
412 break;
413 case DRM_FORMAT_MOD_INVALID:
414 default:
415 break;
416 }
417 }
418
419 return priority_to_modifier[prio];
420 }
421
422 static struct pipe_resource *
etna_resource_create_modifiers(struct pipe_screen * pscreen,const struct pipe_resource * templat,const uint64_t * modifiers,int count)423 etna_resource_create_modifiers(struct pipe_screen *pscreen,
424 const struct pipe_resource *templat,
425 const uint64_t *modifiers, int count)
426 {
427 struct etna_screen *screen = etna_screen(pscreen);
428 struct pipe_resource tmpl = *templat;
429 uint64_t modifier = select_best_modifier(screen, modifiers, count);
430
431 if (modifier == DRM_FORMAT_MOD_INVALID)
432 return NULL;
433
434 /*
435 * We currently assume that all buffers allocated through this interface
436 * should be scanout enabled.
437 */
438 tmpl.bind |= PIPE_BIND_SCANOUT;
439
440 return etna_resource_alloc(pscreen, modifier_to_layout(modifier),
441 modifier, &tmpl);
442 }
443
444 static void
etna_resource_changed(struct pipe_screen * pscreen,struct pipe_resource * prsc)445 etna_resource_changed(struct pipe_screen *pscreen, struct pipe_resource *prsc)
446 {
447 struct etna_resource *res = etna_resource(prsc);
448
449 if (res->external)
450 etna_resource(res->external)->seqno++;
451 else
452 res->seqno++;
453 }
454
455 static void
etna_resource_destroy(struct pipe_screen * pscreen,struct pipe_resource * prsc)456 etna_resource_destroy(struct pipe_screen *pscreen, struct pipe_resource *prsc)
457 {
458 struct etna_resource *rsc = etna_resource(prsc);
459
460 if (rsc->bo)
461 etna_bo_del(rsc->bo);
462
463 if (rsc->ts_bo)
464 etna_bo_del(rsc->ts_bo);
465
466 if (rsc->scanout)
467 renderonly_scanout_destroy(rsc->scanout, etna_screen(pscreen)->ro);
468
469 list_delinit(&rsc->list);
470
471 pipe_resource_reference(&rsc->texture, NULL);
472 pipe_resource_reference(&rsc->external, NULL);
473
474 FREE(rsc);
475 }
476
477 static struct pipe_resource *
etna_resource_from_handle(struct pipe_screen * pscreen,const struct pipe_resource * tmpl,struct winsys_handle * handle,unsigned usage)478 etna_resource_from_handle(struct pipe_screen *pscreen,
479 const struct pipe_resource *tmpl,
480 struct winsys_handle *handle, unsigned usage)
481 {
482 struct etna_screen *screen = etna_screen(pscreen);
483 struct etna_resource *rsc;
484 struct etna_resource_level *level;
485 struct pipe_resource *prsc;
486 struct pipe_resource *ptiled = NULL;
487
488 DBG("target=%d, format=%s, %ux%ux%u, array_size=%u, last_level=%u, "
489 "nr_samples=%u, usage=%u, bind=%x, flags=%x",
490 tmpl->target, util_format_name(tmpl->format), tmpl->width0,
491 tmpl->height0, tmpl->depth0, tmpl->array_size, tmpl->last_level,
492 tmpl->nr_samples, tmpl->usage, tmpl->bind, tmpl->flags);
493
494 rsc = CALLOC_STRUCT(etna_resource);
495 if (!rsc)
496 return NULL;
497
498 level = &rsc->levels[0];
499 prsc = &rsc->base;
500
501 *prsc = *tmpl;
502
503 pipe_reference_init(&prsc->reference, 1);
504 list_inithead(&rsc->list);
505 prsc->screen = pscreen;
506
507 rsc->bo = etna_screen_bo_from_handle(pscreen, handle, &level->stride);
508 if (!rsc->bo)
509 goto fail;
510
511 rsc->seqno = 1;
512 rsc->layout = modifier_to_layout(handle->modifier);
513 rsc->halign = TEXTURE_HALIGN_FOUR;
514
515
516 level->width = tmpl->width0;
517 level->height = tmpl->height0;
518
519 /* Determine padding of the imported resource. */
520 unsigned paddingX = 0, paddingY = 0;
521 etna_layout_multiple(rsc->layout, screen->specs.pixel_pipes,
522 VIV_FEATURE(screen, chipMinorFeatures1, TEXTURE_HALIGN),
523 &paddingX, &paddingY, &rsc->halign);
524
525 if (!screen->specs.use_blt)
526 etna_adjust_rs_align(screen->specs.pixel_pipes, NULL, &paddingY);
527 level->padded_width = align(level->width, paddingX);
528 level->padded_height = align(level->height, paddingY);
529
530 level->layer_stride = level->stride * util_format_get_nblocksy(prsc->format,
531 level->padded_height);
532 level->size = level->layer_stride;
533
534 /* The DDX must give us a BO which conforms to our padding size.
535 * The stride of the BO must be greater or equal to our padded
536 * stride. The size of the BO must accomodate the padded height. */
537 if (level->stride < util_format_get_stride(tmpl->format, level->padded_width)) {
538 BUG("BO stride is too small for RS engine width padding");
539 goto fail;
540 }
541 if (etna_bo_size(rsc->bo) < level->stride * level->padded_height) {
542 BUG("BO size is too small for RS engine height padding");
543 goto fail;
544 }
545
546 if (rsc->layout == ETNA_LAYOUT_LINEAR) {
547 /*
548 * Both sampler and pixel pipes can't handle linear, create a compatible
549 * base resource, where we can attach the imported buffer as an external
550 * resource.
551 */
552 struct pipe_resource tiled_templat = *tmpl;
553
554 /*
555 * Remove BIND_SCANOUT to avoid recursion, as etna_resource_create uses
556 * this function to import the scanout buffer and get a tiled resource.
557 */
558 tiled_templat.bind &= ~PIPE_BIND_SCANOUT;
559
560 ptiled = etna_resource_create(pscreen, &tiled_templat);
561 if (!ptiled)
562 goto fail;
563
564 etna_resource(ptiled)->external = prsc;
565
566 return ptiled;
567 }
568
569 return prsc;
570
571 fail:
572 etna_resource_destroy(pscreen, prsc);
573 if (ptiled)
574 etna_resource_destroy(pscreen, ptiled);
575
576 return NULL;
577 }
578
579 static boolean
etna_resource_get_handle(struct pipe_screen * pscreen,struct pipe_context * pctx,struct pipe_resource * prsc,struct winsys_handle * handle,unsigned usage)580 etna_resource_get_handle(struct pipe_screen *pscreen,
581 struct pipe_context *pctx,
582 struct pipe_resource *prsc,
583 struct winsys_handle *handle, unsigned usage)
584 {
585 struct etna_resource *rsc = etna_resource(prsc);
586 /* Scanout is always attached to the base resource */
587 struct renderonly_scanout *scanout = rsc->scanout;
588
589 /*
590 * External resources are preferred, so a import->export chain of
591 * render/sampler incompatible buffers yield the same handle.
592 */
593 if (rsc->external)
594 rsc = etna_resource(rsc->external);
595
596 handle->stride = rsc->levels[0].stride;
597 handle->modifier = layout_to_modifier(rsc->layout);
598
599 if (handle->type == DRM_API_HANDLE_TYPE_SHARED) {
600 return etna_bo_get_name(rsc->bo, &handle->handle) == 0;
601 } else if (handle->type == DRM_API_HANDLE_TYPE_KMS) {
602 if (renderonly_get_handle(scanout, handle)) {
603 return TRUE;
604 } else {
605 handle->handle = etna_bo_handle(rsc->bo);
606 return TRUE;
607 }
608 } else if (handle->type == DRM_API_HANDLE_TYPE_FD) {
609 handle->handle = etna_bo_dmabuf(rsc->bo);
610 return TRUE;
611 } else {
612 return FALSE;
613 }
614 }
615
616 void
etna_resource_used(struct etna_context * ctx,struct pipe_resource * prsc,enum etna_resource_status status)617 etna_resource_used(struct etna_context *ctx, struct pipe_resource *prsc,
618 enum etna_resource_status status)
619 {
620 struct etna_resource *rsc;
621
622 if (!prsc)
623 return;
624
625 rsc = etna_resource(prsc);
626 rsc->status |= status;
627
628 /* TODO resources can actually be shared across contexts,
629 * so I'm not sure a single list-head will do the trick? */
630 debug_assert((rsc->pending_ctx == ctx) || !rsc->pending_ctx);
631 list_delinit(&rsc->list);
632 list_addtail(&rsc->list, &ctx->used_resources);
633 rsc->pending_ctx = ctx;
634 }
635
636 bool
etna_resource_has_valid_ts(struct etna_resource * rsc)637 etna_resource_has_valid_ts(struct etna_resource *rsc)
638 {
639 if (!rsc->ts_bo)
640 return false;
641
642 for (int level = 0; level <= rsc->base.last_level; level++)
643 if (rsc->levels[level].ts_valid)
644 return true;
645
646 return false;
647 }
648
649 void
etna_resource_screen_init(struct pipe_screen * pscreen)650 etna_resource_screen_init(struct pipe_screen *pscreen)
651 {
652 pscreen->can_create_resource = etna_screen_can_create_resource;
653 pscreen->resource_create = etna_resource_create;
654 pscreen->resource_create_with_modifiers = etna_resource_create_modifiers;
655 pscreen->resource_from_handle = etna_resource_from_handle;
656 pscreen->resource_get_handle = etna_resource_get_handle;
657 pscreen->resource_changed = etna_resource_changed;
658 pscreen->resource_destroy = etna_resource_destroy;
659 }
660