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_vgem;
68 extern const struct backend backend_virtio_gpu;
70 static const struct backend *drv_get_backend(int fd)
72 drmVersionPtr drm_version;
75 drm_version = drmGetVersion(fd);
80 const struct backend *backend_list[] = {
120 &backend_vgem, &backend_virtio_gpu,
123 for (i = 0; i < ARRAY_SIZE(backend_list); i++) {
124 const struct backend *b = backend_list[i];
125 // Exactly one of the main create functions must be defined.
126 assert((b->bo_create != NULL) ^ (b->bo_create_from_metadata != NULL));
127 // Either both or neither must be implemented.
128 assert((b->bo_compute_metadata != NULL) == (b->bo_create_from_metadata != NULL));
129 // Both can't be defined, but it's okay for neither to be (i.e. only bo_create).
130 assert((b->bo_create_with_modifiers == NULL) ||
131 (b->bo_create_from_metadata == NULL));
133 if (!strcmp(drm_version->name, b->name)) {
134 drmFreeVersion(drm_version);
139 drmFreeVersion(drm_version);
143 struct driver *drv_create(int fd)
148 drv = (struct driver *)calloc(1, sizeof(*drv));
154 drv->backend = drv_get_backend(fd);
159 if (pthread_mutex_init(&drv->driver_lock, NULL))
162 drv->buffer_table = drmHashCreate();
163 if (!drv->buffer_table)
166 drv->mappings = drv_array_init(sizeof(struct mapping));
168 goto free_buffer_table;
170 drv->combos = drv_array_init(sizeof(struct combination));
174 if (drv->backend->init) {
175 ret = drv->backend->init(drv);
177 drv_array_destroy(drv->combos);
185 drv_array_destroy(drv->mappings);
187 drmHashDestroy(drv->buffer_table);
189 pthread_mutex_destroy(&drv->driver_lock);
195 void drv_destroy(struct driver *drv)
197 pthread_mutex_lock(&drv->driver_lock);
199 if (drv->backend->close)
200 drv->backend->close(drv);
202 drmHashDestroy(drv->buffer_table);
203 drv_array_destroy(drv->mappings);
204 drv_array_destroy(drv->combos);
206 pthread_mutex_unlock(&drv->driver_lock);
207 pthread_mutex_destroy(&drv->driver_lock);
212 int drv_get_fd(struct driver *drv)
217 const char *drv_get_name(struct driver *drv)
219 return drv->backend->name;
222 struct combination *drv_get_combination(struct driver *drv, uint32_t format, uint64_t use_flags)
224 struct combination *curr, *best;
226 if (format == DRM_FORMAT_NONE || use_flags == BO_USE_NONE)
231 for (i = 0; i < drv_array_size(drv->combos); i++) {
232 curr = drv_array_at_idx(drv->combos, i);
233 if ((format == curr->format) && use_flags == (curr->use_flags & use_flags))
234 if (!best || best->metadata.priority < curr->metadata.priority)
241 struct bo *drv_bo_new(struct driver *drv, uint32_t width, uint32_t height, uint32_t format,
242 uint64_t use_flags, bool is_test_buffer)
246 bo = (struct bo *)calloc(1, sizeof(*bo));
252 bo->meta.width = width;
253 bo->meta.height = height;
254 bo->meta.format = format;
255 bo->meta.use_flags = use_flags;
256 bo->meta.num_planes = drv_num_planes_from_format(format);
257 bo->is_test_buffer = is_test_buffer;
259 if (!bo->meta.num_planes) {
267 struct bo *drv_bo_create(struct driver *drv, uint32_t width, uint32_t height, uint32_t format,
275 is_test_alloc = use_flags & BO_USE_TEST_ALLOC;
276 use_flags &= ~BO_USE_TEST_ALLOC;
278 bo = drv_bo_new(drv, width, height, format, use_flags, is_test_alloc);
284 if (drv->backend->bo_compute_metadata) {
285 ret = drv->backend->bo_compute_metadata(bo, width, height, format, use_flags, NULL,
287 if (!is_test_alloc && ret == 0)
288 ret = drv->backend->bo_create_from_metadata(bo);
289 } else if (!is_test_alloc) {
290 ret = drv->backend->bo_create(bo, width, height, format, use_flags);
298 pthread_mutex_lock(&drv->driver_lock);
300 for (plane = 0; plane < bo->meta.num_planes; plane++) {
302 assert(bo->meta.offsets[plane] >= bo->meta.offsets[plane - 1]);
304 drv_increment_reference_count(drv, bo, plane);
307 pthread_mutex_unlock(&drv->driver_lock);
312 struct bo *drv_bo_create_with_modifiers(struct driver *drv, uint32_t width, uint32_t height,
313 uint32_t format, const uint64_t *modifiers, uint32_t count)
319 if (!drv->backend->bo_create_with_modifiers && !drv->backend->bo_compute_metadata) {
324 bo = drv_bo_new(drv, width, height, format, BO_USE_NONE, false);
330 if (drv->backend->bo_compute_metadata) {
331 ret = drv->backend->bo_compute_metadata(bo, width, height, format, BO_USE_NONE,
334 ret = drv->backend->bo_create_from_metadata(bo);
336 ret = drv->backend->bo_create_with_modifiers(bo, width, height, format, modifiers,
345 pthread_mutex_lock(&drv->driver_lock);
347 for (plane = 0; plane < bo->meta.num_planes; plane++) {
349 assert(bo->meta.offsets[plane] >= bo->meta.offsets[plane - 1]);
351 drv_increment_reference_count(drv, bo, plane);
354 pthread_mutex_unlock(&drv->driver_lock);
359 void drv_bo_destroy(struct bo *bo)
364 struct driver *drv = bo->drv;
366 if (!bo->is_test_buffer) {
367 pthread_mutex_lock(&drv->driver_lock);
369 for (plane = 0; plane < bo->meta.num_planes; plane++)
370 drv_decrement_reference_count(drv, bo, plane);
372 for (plane = 0; plane < bo->meta.num_planes; plane++)
373 total += drv_get_reference_count(drv, bo, plane);
375 pthread_mutex_unlock(&drv->driver_lock);
378 ret = drv_mapping_destroy(bo);
380 bo->drv->backend->bo_destroy(bo);
387 struct bo *drv_bo_import(struct driver *drv, struct drv_import_fd_data *data)
394 bo = drv_bo_new(drv, data->width, data->height, data->format, data->use_flags, false);
399 ret = drv->backend->bo_import(bo, data);
405 for (plane = 0; plane < bo->meta.num_planes; plane++) {
406 pthread_mutex_lock(&bo->drv->driver_lock);
407 drv_increment_reference_count(bo->drv, bo, plane);
408 pthread_mutex_unlock(&bo->drv->driver_lock);
411 for (plane = 0; plane < bo->meta.num_planes; plane++) {
412 bo->meta.strides[plane] = data->strides[plane];
413 bo->meta.offsets[plane] = data->offsets[plane];
414 bo->meta.format_modifiers[plane] = data->format_modifiers[plane];
416 seek_end = lseek(data->fds[plane], 0, SEEK_END);
417 if (seek_end == (off_t)(-1)) {
418 drv_log("lseek() failed with %s\n", strerror(errno));
422 lseek(data->fds[plane], 0, SEEK_SET);
423 if (plane == bo->meta.num_planes - 1 || data->offsets[plane + 1] == 0)
424 bo->meta.sizes[plane] = seek_end - data->offsets[plane];
426 bo->meta.sizes[plane] = data->offsets[plane + 1] - data->offsets[plane];
428 if ((int64_t)bo->meta.offsets[plane] + bo->meta.sizes[plane] > seek_end) {
429 drv_log("buffer size is too large.\n");
433 bo->meta.total_size += bo->meta.sizes[plane];
443 void *drv_bo_map(struct bo *bo, const struct rectangle *rect, uint32_t map_flags,
444 struct mapping **map_data, size_t plane)
448 struct mapping mapping;
450 assert(rect->width >= 0);
451 assert(rect->height >= 0);
452 assert(rect->x + rect->width <= drv_bo_get_width(bo));
453 assert(rect->y + rect->height <= drv_bo_get_height(bo));
454 assert(BO_MAP_READ_WRITE & map_flags);
455 /* No CPU access for protected buffers. */
456 assert(!(bo->meta.use_flags & BO_USE_PROTECTED));
458 if (bo->is_test_buffer) {
462 memset(&mapping, 0, sizeof(mapping));
463 mapping.rect = *rect;
464 mapping.refcount = 1;
466 pthread_mutex_lock(&bo->drv->driver_lock);
468 for (i = 0; i < drv_array_size(bo->drv->mappings); i++) {
469 struct mapping *prior = (struct mapping *)drv_array_at_idx(bo->drv->mappings, i);
470 if (prior->vma->handle != bo->handles[plane].u32 ||
471 prior->vma->map_flags != map_flags)
474 if (rect->x != prior->rect.x || rect->y != prior->rect.y ||
475 rect->width != prior->rect.width || rect->height != prior->rect.height)
483 for (i = 0; i < drv_array_size(bo->drv->mappings); i++) {
484 struct mapping *prior = (struct mapping *)drv_array_at_idx(bo->drv->mappings, i);
485 if (prior->vma->handle != bo->handles[plane].u32 ||
486 prior->vma->map_flags != map_flags)
489 prior->vma->refcount++;
490 mapping.vma = prior->vma;
494 mapping.vma = calloc(1, sizeof(*mapping.vma));
495 memcpy(mapping.vma->map_strides, bo->meta.strides, sizeof(mapping.vma->map_strides));
496 addr = bo->drv->backend->bo_map(bo, mapping.vma, plane, map_flags);
497 if (addr == MAP_FAILED) {
500 pthread_mutex_unlock(&bo->drv->driver_lock);
504 mapping.vma->refcount = 1;
505 mapping.vma->addr = addr;
506 mapping.vma->handle = bo->handles[plane].u32;
507 mapping.vma->map_flags = map_flags;
510 *map_data = drv_array_append(bo->drv->mappings, &mapping);
512 drv_bo_invalidate(bo, *map_data);
513 addr = (uint8_t *)((*map_data)->vma->addr);
514 addr += drv_bo_get_plane_offset(bo, plane);
515 pthread_mutex_unlock(&bo->drv->driver_lock);
519 int drv_bo_unmap(struct bo *bo, struct mapping *mapping)
524 pthread_mutex_lock(&bo->drv->driver_lock);
526 if (--mapping->refcount)
529 if (!--mapping->vma->refcount) {
530 ret = bo->drv->backend->bo_unmap(bo, mapping->vma);
534 for (i = 0; i < drv_array_size(bo->drv->mappings); i++) {
535 if (mapping == (struct mapping *)drv_array_at_idx(bo->drv->mappings, i)) {
536 drv_array_remove(bo->drv->mappings, i);
542 pthread_mutex_unlock(&bo->drv->driver_lock);
546 int drv_bo_invalidate(struct bo *bo, struct mapping *mapping)
551 assert(mapping->vma);
552 assert(mapping->refcount > 0);
553 assert(mapping->vma->refcount > 0);
555 if (bo->drv->backend->bo_invalidate)
556 ret = bo->drv->backend->bo_invalidate(bo, mapping);
561 int drv_bo_flush(struct bo *bo, struct mapping *mapping)
566 assert(mapping->vma);
567 assert(mapping->refcount > 0);
568 assert(mapping->vma->refcount > 0);
570 if (bo->drv->backend->bo_flush)
571 ret = bo->drv->backend->bo_flush(bo, mapping);
576 int drv_bo_flush_or_unmap(struct bo *bo, struct mapping *mapping)
581 assert(mapping->vma);
582 assert(mapping->refcount > 0);
583 assert(mapping->vma->refcount > 0);
584 assert(!(bo->meta.use_flags & BO_USE_PROTECTED));
586 if (bo->drv->backend->bo_flush)
587 ret = bo->drv->backend->bo_flush(bo, mapping);
589 ret = drv_bo_unmap(bo, mapping);
594 uint32_t drv_bo_get_width(struct bo *bo)
596 return bo->meta.width;
599 uint32_t drv_bo_get_height(struct bo *bo)
601 return bo->meta.height;
604 size_t drv_bo_get_num_planes(struct bo *bo)
606 return bo->meta.num_planes;
609 union bo_handle drv_bo_get_plane_handle(struct bo *bo, size_t plane)
611 return bo->handles[plane];
615 #define DRM_RDWR O_RDWR
618 int drv_bo_get_plane_fd(struct bo *bo, size_t plane)
622 assert(plane < bo->meta.num_planes);
624 if (bo->is_test_buffer) {
628 ret = drmPrimeHandleToFD(bo->drv->fd, bo->handles[plane].u32, DRM_CLOEXEC | DRM_RDWR, &fd);
630 // Older DRM implementations blocked DRM_RDWR, but gave a read/write mapping anyways
632 ret = drmPrimeHandleToFD(bo->drv->fd, bo->handles[plane].u32, DRM_CLOEXEC, &fd);
634 return (ret) ? ret : fd;
637 uint32_t drv_bo_get_plane_offset(struct bo *bo, size_t plane)
639 assert(plane < bo->meta.num_planes);
640 return bo->meta.offsets[plane];
643 uint32_t drv_bo_get_plane_size(struct bo *bo, size_t plane)
645 assert(plane < bo->meta.num_planes);
646 return bo->meta.sizes[plane];
649 uint32_t drv_bo_get_plane_stride(struct bo *bo, size_t plane)
651 assert(plane < bo->meta.num_planes);
652 return bo->meta.strides[plane];
655 uint64_t drv_bo_get_plane_format_modifier(struct bo *bo, size_t plane)
657 assert(plane < bo->meta.num_planes);
658 return bo->meta.format_modifiers[plane];
661 uint32_t drv_bo_get_format(struct bo *bo)
663 return bo->meta.format;
666 size_t drv_bo_get_total_size(struct bo *bo)
668 return bo->meta.total_size;
671 uint32_t drv_resolve_format(struct driver *drv, uint32_t format, uint64_t use_flags)
673 if (drv->backend->resolve_format)
674 return drv->backend->resolve_format(drv, format, use_flags);
679 uint32_t drv_num_buffers_per_bo(struct bo *bo)
684 if (bo->is_test_buffer) {
688 for (plane = 0; plane < bo->meta.num_planes; plane++) {
689 for (p = 0; p < plane; p++)
690 if (bo->handles[p].u32 == bo->handles[plane].u32)
699 void drv_log_prefix(const char *prefix, const char *file, int line, const char *format, ...)
702 snprintf(buf, sizeof(buf), "[%s:%s(%d)]", prefix, basename(file), line);
705 va_start(args, format);
707 __android_log_vprint(ANDROID_LOG_ERROR, buf, format, args);
709 fprintf(stderr, "%s ", buf);
710 vfprintf(stderr, format, args);
715 int drv_resource_info(struct bo *bo, uint32_t strides[DRV_MAX_PLANES],
716 uint32_t offsets[DRV_MAX_PLANES])
718 for (uint32_t plane = 0; plane < bo->meta.num_planes; plane++) {
719 strides[plane] = bo->meta.strides[plane];
720 offsets[plane] = bo->meta.offsets[plane];
723 if (bo->drv->backend->resource_info)
724 return bo->drv->backend->resource_info(bo, strides, offsets);