2 * Copyright 2016 The Chromium OS Authors. All rights reserved.
3 * Use of this source code is governed by a BSD-style license that can be
4 * found in the LICENSE file.
15 #include <sys/types.h>
20 #include <cutils/log.h>
29 extern const struct backend backend_amdgpu;
31 extern const struct backend backend_evdi;
33 extern const struct backend backend_exynos;
36 extern const struct backend backend_i915;
39 extern const struct backend backend_marvell;
42 extern const struct backend backend_mediatek;
45 extern const struct backend backend_meson;
48 extern const struct backend backend_msm;
50 extern const struct backend backend_nouveau;
52 extern const struct backend backend_radeon;
55 extern const struct backend backend_rockchip;
58 extern const struct backend backend_synaptics;
61 extern const struct backend backend_tegra;
63 extern const struct backend backend_udl;
65 extern const struct backend backend_vc4;
67 extern const struct backend backend_virtio_gpu;
69 static const struct backend *drv_get_backend(int fd)
71 drmVersionPtr drm_version;
74 drm_version = drmGetVersion(fd);
79 const struct backend *backend_list[] = {
122 for (i = 0; i < ARRAY_SIZE(backend_list); i++) {
123 const struct backend *b = backend_list[i];
124 // Exactly one of the main create functions must be defined.
125 assert((b->bo_create != NULL) ^ (b->bo_create_from_metadata != NULL));
126 // Either both or neither must be implemented.
127 assert((b->bo_compute_metadata != NULL) == (b->bo_create_from_metadata != NULL));
128 // Both can't be defined, but it's okay for neither to be (i.e. only bo_create).
129 assert((b->bo_create_with_modifiers == NULL) ||
130 (b->bo_create_from_metadata == NULL));
132 if (!strcmp(drm_version->name, b->name)) {
133 drmFreeVersion(drm_version);
138 drmFreeVersion(drm_version);
142 struct driver *drv_create(int fd)
147 drv = (struct driver *)calloc(1, sizeof(*drv));
153 drv->backend = drv_get_backend(fd);
158 if (pthread_mutex_init(&drv->driver_lock, NULL))
161 drv->buffer_table = drmHashCreate();
162 if (!drv->buffer_table)
165 drv->mappings = drv_array_init(sizeof(struct mapping));
167 goto free_buffer_table;
169 drv->combos = drv_array_init(sizeof(struct combination));
173 if (drv->backend->init) {
174 ret = drv->backend->init(drv);
176 drv_array_destroy(drv->combos);
184 drv_array_destroy(drv->mappings);
186 drmHashDestroy(drv->buffer_table);
188 pthread_mutex_destroy(&drv->driver_lock);
194 void drv_destroy(struct driver *drv)
196 pthread_mutex_lock(&drv->driver_lock);
198 if (drv->backend->close)
199 drv->backend->close(drv);
201 drmHashDestroy(drv->buffer_table);
202 drv_array_destroy(drv->mappings);
203 drv_array_destroy(drv->combos);
205 pthread_mutex_unlock(&drv->driver_lock);
206 pthread_mutex_destroy(&drv->driver_lock);
211 int drv_get_fd(struct driver *drv)
216 const char *drv_get_name(struct driver *drv)
218 return drv->backend->name;
221 struct combination *drv_get_combination(struct driver *drv, uint32_t format, uint64_t use_flags)
223 struct combination *curr, *best;
225 if (format == DRM_FORMAT_NONE || use_flags == BO_USE_NONE)
230 for (i = 0; i < drv_array_size(drv->combos); i++) {
231 curr = drv_array_at_idx(drv->combos, i);
232 if ((format == curr->format) && use_flags == (curr->use_flags & use_flags))
233 if (!best || best->metadata.priority < curr->metadata.priority)
240 struct bo *drv_bo_new(struct driver *drv, uint32_t width, uint32_t height, uint32_t format,
241 uint64_t use_flags, bool is_test_buffer)
245 bo = (struct bo *)calloc(1, sizeof(*bo));
251 bo->meta.width = width;
252 bo->meta.height = height;
253 bo->meta.format = format;
254 bo->meta.use_flags = use_flags;
255 bo->meta.num_planes = drv_num_planes_from_format(format);
256 bo->is_test_buffer = is_test_buffer;
258 if (!bo->meta.num_planes) {
266 struct bo *drv_bo_create(struct driver *drv, uint32_t width, uint32_t height, uint32_t format,
274 is_test_alloc = use_flags & BO_USE_TEST_ALLOC;
275 use_flags &= ~BO_USE_TEST_ALLOC;
277 bo = drv_bo_new(drv, width, height, format, use_flags, is_test_alloc);
283 if (drv->backend->bo_compute_metadata) {
284 ret = drv->backend->bo_compute_metadata(bo, width, height, format, use_flags, NULL,
286 if (!is_test_alloc && ret == 0)
287 ret = drv->backend->bo_create_from_metadata(bo);
288 } else if (!is_test_alloc) {
289 ret = drv->backend->bo_create(bo, width, height, format, use_flags);
297 pthread_mutex_lock(&drv->driver_lock);
299 for (plane = 0; plane < bo->meta.num_planes; plane++) {
301 assert(bo->meta.offsets[plane] >= bo->meta.offsets[plane - 1]);
303 drv_increment_reference_count(drv, bo, plane);
306 pthread_mutex_unlock(&drv->driver_lock);
311 struct bo *drv_bo_create_with_modifiers(struct driver *drv, uint32_t width, uint32_t height,
312 uint32_t format, const uint64_t *modifiers, uint32_t count)
318 if (!drv->backend->bo_create_with_modifiers && !drv->backend->bo_compute_metadata) {
323 bo = drv_bo_new(drv, width, height, format, BO_USE_NONE, false);
329 if (drv->backend->bo_compute_metadata) {
330 ret = drv->backend->bo_compute_metadata(bo, width, height, format, BO_USE_NONE,
333 ret = drv->backend->bo_create_from_metadata(bo);
335 ret = drv->backend->bo_create_with_modifiers(bo, width, height, format, modifiers,
344 pthread_mutex_lock(&drv->driver_lock);
346 for (plane = 0; plane < bo->meta.num_planes; plane++) {
348 assert(bo->meta.offsets[plane] >= bo->meta.offsets[plane - 1]);
350 drv_increment_reference_count(drv, bo, plane);
353 pthread_mutex_unlock(&drv->driver_lock);
358 void drv_bo_destroy(struct bo *bo)
363 struct driver *drv = bo->drv;
365 if (!bo->is_test_buffer) {
366 pthread_mutex_lock(&drv->driver_lock);
368 for (plane = 0; plane < bo->meta.num_planes; plane++)
369 drv_decrement_reference_count(drv, bo, plane);
371 for (plane = 0; plane < bo->meta.num_planes; plane++)
372 total += drv_get_reference_count(drv, bo, plane);
374 pthread_mutex_unlock(&drv->driver_lock);
377 ret = drv_mapping_destroy(bo);
379 bo->drv->backend->bo_destroy(bo);
386 struct bo *drv_bo_import(struct driver *drv, struct drv_import_fd_data *data)
393 bo = drv_bo_new(drv, data->width, data->height, data->format, data->use_flags, false);
398 ret = drv->backend->bo_import(bo, data);
404 for (plane = 0; plane < bo->meta.num_planes; plane++) {
405 pthread_mutex_lock(&bo->drv->driver_lock);
406 drv_increment_reference_count(bo->drv, bo, plane);
407 pthread_mutex_unlock(&bo->drv->driver_lock);
410 for (plane = 0; plane < bo->meta.num_planes; plane++) {
411 bo->meta.strides[plane] = data->strides[plane];
412 bo->meta.offsets[plane] = data->offsets[plane];
413 bo->meta.format_modifiers[plane] = data->format_modifiers[plane];
415 seek_end = lseek(data->fds[plane], 0, SEEK_END);
416 if (seek_end == (off_t)(-1)) {
417 drv_log("lseek() failed with %s\n", strerror(errno));
421 lseek(data->fds[plane], 0, SEEK_SET);
422 if (plane == bo->meta.num_planes - 1 || data->offsets[plane + 1] == 0)
423 bo->meta.sizes[plane] = seek_end - data->offsets[plane];
425 bo->meta.sizes[plane] = data->offsets[plane + 1] - data->offsets[plane];
427 if ((int64_t)bo->meta.offsets[plane] + bo->meta.sizes[plane] > seek_end) {
428 drv_log("buffer size is too large.\n");
432 bo->meta.total_size += bo->meta.sizes[plane];
442 void *drv_bo_map(struct bo *bo, const struct rectangle *rect, uint32_t map_flags,
443 struct mapping **map_data, size_t plane)
447 struct mapping mapping = { 0 };
449 assert(rect->width >= 0);
450 assert(rect->height >= 0);
451 assert(rect->x + rect->width <= drv_bo_get_width(bo));
452 assert(rect->y + rect->height <= drv_bo_get_height(bo));
453 assert(BO_MAP_READ_WRITE & map_flags);
454 /* No CPU access for protected buffers. */
455 assert(!(bo->meta.use_flags & BO_USE_PROTECTED));
457 if (bo->is_test_buffer) {
461 mapping.rect = *rect;
462 mapping.refcount = 1;
464 pthread_mutex_lock(&bo->drv->driver_lock);
466 for (i = 0; i < drv_array_size(bo->drv->mappings); i++) {
467 struct mapping *prior = (struct mapping *)drv_array_at_idx(bo->drv->mappings, i);
468 if (prior->vma->handle != bo->handles[plane].u32 ||
469 prior->vma->map_flags != map_flags)
472 if (rect->x != prior->rect.x || rect->y != prior->rect.y ||
473 rect->width != prior->rect.width || rect->height != prior->rect.height)
481 for (i = 0; i < drv_array_size(bo->drv->mappings); i++) {
482 struct mapping *prior = (struct mapping *)drv_array_at_idx(bo->drv->mappings, i);
483 if (prior->vma->handle != bo->handles[plane].u32 ||
484 prior->vma->map_flags != map_flags)
487 prior->vma->refcount++;
488 mapping.vma = prior->vma;
492 mapping.vma = calloc(1, sizeof(*mapping.vma));
493 memcpy(mapping.vma->map_strides, bo->meta.strides, sizeof(mapping.vma->map_strides));
494 addr = bo->drv->backend->bo_map(bo, mapping.vma, plane, map_flags);
495 if (addr == MAP_FAILED) {
498 pthread_mutex_unlock(&bo->drv->driver_lock);
502 mapping.vma->refcount = 1;
503 mapping.vma->addr = addr;
504 mapping.vma->handle = bo->handles[plane].u32;
505 mapping.vma->map_flags = map_flags;
508 *map_data = drv_array_append(bo->drv->mappings, &mapping);
510 drv_bo_invalidate(bo, *map_data);
511 addr = (uint8_t *)((*map_data)->vma->addr);
512 addr += drv_bo_get_plane_offset(bo, plane);
513 pthread_mutex_unlock(&bo->drv->driver_lock);
517 int drv_bo_unmap(struct bo *bo, struct mapping *mapping)
522 pthread_mutex_lock(&bo->drv->driver_lock);
524 if (--mapping->refcount)
527 if (!--mapping->vma->refcount) {
528 ret = bo->drv->backend->bo_unmap(bo, mapping->vma);
532 for (i = 0; i < drv_array_size(bo->drv->mappings); i++) {
533 if (mapping == (struct mapping *)drv_array_at_idx(bo->drv->mappings, i)) {
534 drv_array_remove(bo->drv->mappings, i);
540 pthread_mutex_unlock(&bo->drv->driver_lock);
544 int drv_bo_invalidate(struct bo *bo, struct mapping *mapping)
549 assert(mapping->vma);
550 assert(mapping->refcount > 0);
551 assert(mapping->vma->refcount > 0);
553 if (bo->drv->backend->bo_invalidate)
554 ret = bo->drv->backend->bo_invalidate(bo, mapping);
559 int drv_bo_flush(struct bo *bo, struct mapping *mapping)
564 assert(mapping->vma);
565 assert(mapping->refcount > 0);
566 assert(mapping->vma->refcount > 0);
568 if (bo->drv->backend->bo_flush)
569 ret = bo->drv->backend->bo_flush(bo, mapping);
574 int drv_bo_flush_or_unmap(struct bo *bo, struct mapping *mapping)
579 assert(mapping->vma);
580 assert(mapping->refcount > 0);
581 assert(mapping->vma->refcount > 0);
582 assert(!(bo->meta.use_flags & BO_USE_PROTECTED));
584 if (bo->drv->backend->bo_flush)
585 ret = bo->drv->backend->bo_flush(bo, mapping);
587 ret = drv_bo_unmap(bo, mapping);
592 uint32_t drv_bo_get_width(struct bo *bo)
594 return bo->meta.width;
597 uint32_t drv_bo_get_height(struct bo *bo)
599 return bo->meta.height;
602 size_t drv_bo_get_num_planes(struct bo *bo)
604 return bo->meta.num_planes;
607 union bo_handle drv_bo_get_plane_handle(struct bo *bo, size_t plane)
609 return bo->handles[plane];
613 #define DRM_RDWR O_RDWR
616 int drv_bo_get_plane_fd(struct bo *bo, size_t plane)
620 assert(plane < bo->meta.num_planes);
622 if (bo->is_test_buffer) {
626 ret = drmPrimeHandleToFD(bo->drv->fd, bo->handles[plane].u32, DRM_CLOEXEC | DRM_RDWR, &fd);
628 // Older DRM implementations blocked DRM_RDWR, but gave a read/write mapping anyways
630 ret = drmPrimeHandleToFD(bo->drv->fd, bo->handles[plane].u32, DRM_CLOEXEC, &fd);
632 return (ret) ? ret : fd;
635 uint32_t drv_bo_get_plane_offset(struct bo *bo, size_t plane)
637 assert(plane < bo->meta.num_planes);
638 return bo->meta.offsets[plane];
641 uint32_t drv_bo_get_plane_size(struct bo *bo, size_t plane)
643 assert(plane < bo->meta.num_planes);
644 return bo->meta.sizes[plane];
647 uint32_t drv_bo_get_plane_stride(struct bo *bo, size_t plane)
649 assert(plane < bo->meta.num_planes);
650 return bo->meta.strides[plane];
653 uint64_t drv_bo_get_plane_format_modifier(struct bo *bo, size_t plane)
655 assert(plane < bo->meta.num_planes);
656 return bo->meta.format_modifiers[plane];
659 uint32_t drv_bo_get_format(struct bo *bo)
661 return bo->meta.format;
664 size_t drv_bo_get_total_size(struct bo *bo)
666 return bo->meta.total_size;
669 uint32_t drv_resolve_format(struct driver *drv, uint32_t format, uint64_t use_flags)
671 if (drv->backend->resolve_format)
672 return drv->backend->resolve_format(drv, format, use_flags);
677 uint32_t drv_num_buffers_per_bo(struct bo *bo)
682 if (bo->is_test_buffer) {
686 for (plane = 0; plane < bo->meta.num_planes; plane++) {
687 for (p = 0; p < plane; p++)
688 if (bo->handles[p].u32 == bo->handles[plane].u32)
697 void drv_log_prefix(const char *prefix, const char *file, int line, const char *format, ...)
700 snprintf(buf, sizeof(buf), "[%s:%s(%d)]", prefix, basename(file), line);
703 va_start(args, format);
705 __android_log_vprint(ANDROID_LOG_ERROR, buf, format, args);
707 fprintf(stderr, "%s ", buf);
708 vfprintf(stderr, format, args);
713 int drv_resource_info(struct bo *bo, uint32_t strides[DRV_MAX_PLANES],
714 uint32_t offsets[DRV_MAX_PLANES])
716 for (uint32_t plane = 0; plane < bo->meta.num_planes; plane++) {
717 strides[plane] = bo->meta.strides[plane];
718 offsets[plane] = bo->meta.offsets[plane];
721 if (bo->drv->backend->resource_info)
722 return bo->drv->backend->resource_info(bo, strides, offsets);