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;
32 extern const struct backend backend_exynos;
35 extern const struct backend backend_i915;
38 extern const struct backend backend_mediatek;
41 extern const struct backend backend_msm;
44 extern const struct backend backend_rockchip;
47 extern const struct backend backend_tegra;
50 extern const struct backend backend_vc4;
53 // Dumb / generic drivers
54 extern const struct backend backend_evdi;
55 extern const struct backend backend_marvell;
56 extern const struct backend backend_meson;
57 extern const struct backend backend_nouveau;
58 extern const struct backend backend_komeda;
59 extern const struct backend backend_radeon;
60 extern const struct backend backend_synaptics;
61 extern const struct backend backend_virtio_gpu;
62 extern const struct backend backend_udl;
64 static const struct backend *drv_get_backend(int fd)
66 drmVersionPtr drm_version;
69 drm_version = drmGetVersion(fd);
74 const struct backend *backend_list[] = {
96 &backend_evdi, &backend_marvell, &backend_meson,
97 &backend_nouveau, &backend_komeda, &backend_radeon,
98 &backend_synaptics, &backend_virtio_gpu, &backend_udl,
101 for (i = 0; i < ARRAY_SIZE(backend_list); i++) {
102 const struct backend *b = backend_list[i];
103 // Exactly one of the main create functions must be defined.
104 assert((b->bo_create != NULL) ^ (b->bo_create_from_metadata != NULL));
105 // Either both or neither must be implemented.
106 assert((b->bo_compute_metadata != NULL) == (b->bo_create_from_metadata != NULL));
107 // Both can't be defined, but it's okay for neither to be (i.e. only bo_create).
108 assert((b->bo_create_with_modifiers == NULL) ||
109 (b->bo_create_from_metadata == NULL));
111 if (!strcmp(drm_version->name, b->name)) {
112 drmFreeVersion(drm_version);
117 drmFreeVersion(drm_version);
121 struct driver *drv_create(int fd)
126 drv = (struct driver *)calloc(1, sizeof(*drv));
132 drv->backend = drv_get_backend(fd);
137 if (pthread_mutex_init(&drv->driver_lock, NULL))
140 drv->buffer_table = drmHashCreate();
141 if (!drv->buffer_table)
144 drv->mappings = drv_array_init(sizeof(struct mapping));
146 goto free_buffer_table;
148 drv->combos = drv_array_init(sizeof(struct combination));
152 if (drv->backend->init) {
153 ret = drv->backend->init(drv);
155 drv_array_destroy(drv->combos);
163 drv_array_destroy(drv->mappings);
165 drmHashDestroy(drv->buffer_table);
167 pthread_mutex_destroy(&drv->driver_lock);
173 void drv_destroy(struct driver *drv)
175 pthread_mutex_lock(&drv->driver_lock);
177 if (drv->backend->close)
178 drv->backend->close(drv);
180 drmHashDestroy(drv->buffer_table);
181 drv_array_destroy(drv->mappings);
182 drv_array_destroy(drv->combos);
184 pthread_mutex_unlock(&drv->driver_lock);
185 pthread_mutex_destroy(&drv->driver_lock);
190 int drv_get_fd(struct driver *drv)
195 const char *drv_get_name(struct driver *drv)
197 return drv->backend->name;
200 struct combination *drv_get_combination(struct driver *drv, uint32_t format, uint64_t use_flags)
202 struct combination *curr, *best;
204 if (format == DRM_FORMAT_NONE || use_flags == BO_USE_NONE)
209 for (i = 0; i < drv_array_size(drv->combos); i++) {
210 curr = drv_array_at_idx(drv->combos, i);
211 if ((format == curr->format) && use_flags == (curr->use_flags & use_flags))
212 if (!best || best->metadata.priority < curr->metadata.priority)
219 struct bo *drv_bo_new(struct driver *drv, uint32_t width, uint32_t height, uint32_t format,
220 uint64_t use_flags, bool is_test_buffer)
224 bo = (struct bo *)calloc(1, sizeof(*bo));
230 bo->meta.width = width;
231 bo->meta.height = height;
232 bo->meta.format = format;
233 bo->meta.use_flags = use_flags;
234 bo->meta.num_planes = drv_num_planes_from_format(format);
235 bo->is_test_buffer = is_test_buffer;
237 if (!bo->meta.num_planes) {
245 struct bo *drv_bo_create(struct driver *drv, uint32_t width, uint32_t height, uint32_t format,
253 is_test_alloc = use_flags & BO_USE_TEST_ALLOC;
254 use_flags &= ~BO_USE_TEST_ALLOC;
256 bo = drv_bo_new(drv, width, height, format, use_flags, is_test_alloc);
262 if (drv->backend->bo_compute_metadata) {
263 ret = drv->backend->bo_compute_metadata(bo, width, height, format, use_flags, NULL,
265 if (!is_test_alloc && ret == 0)
266 ret = drv->backend->bo_create_from_metadata(bo);
267 } else if (!is_test_alloc) {
268 ret = drv->backend->bo_create(bo, width, height, format, use_flags);
276 pthread_mutex_lock(&drv->driver_lock);
278 for (plane = 0; plane < bo->meta.num_planes; plane++) {
280 assert(bo->meta.offsets[plane] >= bo->meta.offsets[plane - 1]);
282 drv_increment_reference_count(drv, bo, plane);
285 pthread_mutex_unlock(&drv->driver_lock);
290 struct bo *drv_bo_create_with_modifiers(struct driver *drv, uint32_t width, uint32_t height,
291 uint32_t format, const uint64_t *modifiers, uint32_t count)
297 if (!drv->backend->bo_create_with_modifiers && !drv->backend->bo_compute_metadata) {
302 bo = drv_bo_new(drv, width, height, format, BO_USE_NONE, false);
308 if (drv->backend->bo_compute_metadata) {
309 ret = drv->backend->bo_compute_metadata(bo, width, height, format, BO_USE_NONE,
312 ret = drv->backend->bo_create_from_metadata(bo);
314 ret = drv->backend->bo_create_with_modifiers(bo, width, height, format, modifiers,
323 pthread_mutex_lock(&drv->driver_lock);
325 for (plane = 0; plane < bo->meta.num_planes; plane++) {
327 assert(bo->meta.offsets[plane] >= bo->meta.offsets[plane - 1]);
329 drv_increment_reference_count(drv, bo, plane);
332 pthread_mutex_unlock(&drv->driver_lock);
337 void drv_bo_destroy(struct bo *bo)
342 struct driver *drv = bo->drv;
344 if (!bo->is_test_buffer) {
345 pthread_mutex_lock(&drv->driver_lock);
347 for (plane = 0; plane < bo->meta.num_planes; plane++)
348 drv_decrement_reference_count(drv, bo, plane);
350 for (plane = 0; plane < bo->meta.num_planes; plane++)
351 total += drv_get_reference_count(drv, bo, plane);
353 pthread_mutex_unlock(&drv->driver_lock);
356 ret = drv_mapping_destroy(bo);
358 bo->drv->backend->bo_destroy(bo);
365 struct bo *drv_bo_import(struct driver *drv, struct drv_import_fd_data *data)
372 bo = drv_bo_new(drv, data->width, data->height, data->format, data->use_flags, false);
377 ret = drv->backend->bo_import(bo, data);
383 for (plane = 0; plane < bo->meta.num_planes; plane++) {
384 pthread_mutex_lock(&bo->drv->driver_lock);
385 drv_increment_reference_count(bo->drv, bo, plane);
386 pthread_mutex_unlock(&bo->drv->driver_lock);
389 for (plane = 0; plane < bo->meta.num_planes; plane++) {
390 bo->meta.strides[plane] = data->strides[plane];
391 bo->meta.offsets[plane] = data->offsets[plane];
392 bo->meta.format_modifiers[plane] = data->format_modifiers[plane];
394 seek_end = lseek(data->fds[plane], 0, SEEK_END);
395 if (seek_end == (off_t)(-1)) {
396 drv_log("lseek() failed with %s\n", strerror(errno));
400 lseek(data->fds[plane], 0, SEEK_SET);
401 if (plane == bo->meta.num_planes - 1 || data->offsets[plane + 1] == 0)
402 bo->meta.sizes[plane] = seek_end - data->offsets[plane];
404 bo->meta.sizes[plane] = data->offsets[plane + 1] - data->offsets[plane];
406 if ((int64_t)bo->meta.offsets[plane] + bo->meta.sizes[plane] > seek_end) {
407 drv_log("buffer size is too large.\n");
411 bo->meta.total_size += bo->meta.sizes[plane];
421 void *drv_bo_map(struct bo *bo, const struct rectangle *rect, uint32_t map_flags,
422 struct mapping **map_data, size_t plane)
426 struct mapping mapping = { 0 };
428 assert(rect->width >= 0);
429 assert(rect->height >= 0);
430 assert(rect->x + rect->width <= drv_bo_get_width(bo));
431 assert(rect->y + rect->height <= drv_bo_get_height(bo));
432 assert(BO_MAP_READ_WRITE & map_flags);
433 /* No CPU access for protected buffers. */
434 assert(!(bo->meta.use_flags & BO_USE_PROTECTED));
436 if (bo->is_test_buffer) {
440 mapping.rect = *rect;
441 mapping.refcount = 1;
443 pthread_mutex_lock(&bo->drv->driver_lock);
445 for (i = 0; i < drv_array_size(bo->drv->mappings); i++) {
446 struct mapping *prior = (struct mapping *)drv_array_at_idx(bo->drv->mappings, i);
447 if (prior->vma->handle != bo->handles[plane].u32 ||
448 prior->vma->map_flags != map_flags)
451 if (rect->x != prior->rect.x || rect->y != prior->rect.y ||
452 rect->width != prior->rect.width || rect->height != prior->rect.height)
460 for (i = 0; i < drv_array_size(bo->drv->mappings); i++) {
461 struct mapping *prior = (struct mapping *)drv_array_at_idx(bo->drv->mappings, i);
462 if (prior->vma->handle != bo->handles[plane].u32 ||
463 prior->vma->map_flags != map_flags)
466 prior->vma->refcount++;
467 mapping.vma = prior->vma;
471 mapping.vma = calloc(1, sizeof(*mapping.vma));
472 memcpy(mapping.vma->map_strides, bo->meta.strides, sizeof(mapping.vma->map_strides));
473 addr = bo->drv->backend->bo_map(bo, mapping.vma, plane, map_flags);
474 if (addr == MAP_FAILED) {
477 pthread_mutex_unlock(&bo->drv->driver_lock);
481 mapping.vma->refcount = 1;
482 mapping.vma->addr = addr;
483 mapping.vma->handle = bo->handles[plane].u32;
484 mapping.vma->map_flags = map_flags;
487 *map_data = drv_array_append(bo->drv->mappings, &mapping);
489 drv_bo_invalidate(bo, *map_data);
490 addr = (uint8_t *)((*map_data)->vma->addr);
491 addr += drv_bo_get_plane_offset(bo, plane);
492 pthread_mutex_unlock(&bo->drv->driver_lock);
496 int drv_bo_unmap(struct bo *bo, struct mapping *mapping)
501 pthread_mutex_lock(&bo->drv->driver_lock);
503 if (--mapping->refcount)
506 if (!--mapping->vma->refcount) {
507 ret = bo->drv->backend->bo_unmap(bo, mapping->vma);
511 for (i = 0; i < drv_array_size(bo->drv->mappings); i++) {
512 if (mapping == (struct mapping *)drv_array_at_idx(bo->drv->mappings, i)) {
513 drv_array_remove(bo->drv->mappings, i);
519 pthread_mutex_unlock(&bo->drv->driver_lock);
523 int drv_bo_invalidate(struct bo *bo, struct mapping *mapping)
528 assert(mapping->vma);
529 assert(mapping->refcount > 0);
530 assert(mapping->vma->refcount > 0);
532 if (bo->drv->backend->bo_invalidate)
533 ret = bo->drv->backend->bo_invalidate(bo, mapping);
538 int drv_bo_flush(struct bo *bo, struct mapping *mapping)
543 assert(mapping->vma);
544 assert(mapping->refcount > 0);
545 assert(mapping->vma->refcount > 0);
547 if (bo->drv->backend->bo_flush)
548 ret = bo->drv->backend->bo_flush(bo, mapping);
553 int drv_bo_flush_or_unmap(struct bo *bo, struct mapping *mapping)
558 assert(mapping->vma);
559 assert(mapping->refcount > 0);
560 assert(mapping->vma->refcount > 0);
561 assert(!(bo->meta.use_flags & BO_USE_PROTECTED));
563 if (bo->drv->backend->bo_flush)
564 ret = bo->drv->backend->bo_flush(bo, mapping);
566 ret = drv_bo_unmap(bo, mapping);
571 uint32_t drv_bo_get_width(struct bo *bo)
573 return bo->meta.width;
576 uint32_t drv_bo_get_height(struct bo *bo)
578 return bo->meta.height;
581 size_t drv_bo_get_num_planes(struct bo *bo)
583 return bo->meta.num_planes;
586 union bo_handle drv_bo_get_plane_handle(struct bo *bo, size_t plane)
588 return bo->handles[plane];
592 #define DRM_RDWR O_RDWR
595 int drv_bo_get_plane_fd(struct bo *bo, size_t plane)
599 assert(plane < bo->meta.num_planes);
601 if (bo->is_test_buffer) {
605 ret = drmPrimeHandleToFD(bo->drv->fd, bo->handles[plane].u32, DRM_CLOEXEC | DRM_RDWR, &fd);
607 // Older DRM implementations blocked DRM_RDWR, but gave a read/write mapping anyways
609 ret = drmPrimeHandleToFD(bo->drv->fd, bo->handles[plane].u32, DRM_CLOEXEC, &fd);
611 return (ret) ? ret : fd;
614 uint32_t drv_bo_get_plane_offset(struct bo *bo, size_t plane)
616 assert(plane < bo->meta.num_planes);
617 return bo->meta.offsets[plane];
620 uint32_t drv_bo_get_plane_size(struct bo *bo, size_t plane)
622 assert(plane < bo->meta.num_planes);
623 return bo->meta.sizes[plane];
626 uint32_t drv_bo_get_plane_stride(struct bo *bo, size_t plane)
628 assert(plane < bo->meta.num_planes);
629 return bo->meta.strides[plane];
632 uint64_t drv_bo_get_plane_format_modifier(struct bo *bo, size_t plane)
634 assert(plane < bo->meta.num_planes);
635 return bo->meta.format_modifiers[plane];
638 uint32_t drv_bo_get_format(struct bo *bo)
640 return bo->meta.format;
643 size_t drv_bo_get_total_size(struct bo *bo)
645 return bo->meta.total_size;
648 uint32_t drv_resolve_format(struct driver *drv, uint32_t format, uint64_t use_flags)
650 if (drv->backend->resolve_format)
651 return drv->backend->resolve_format(drv, format, use_flags);
656 uint32_t drv_num_buffers_per_bo(struct bo *bo)
661 if (bo->is_test_buffer) {
665 for (plane = 0; plane < bo->meta.num_planes; plane++) {
666 for (p = 0; p < plane; p++)
667 if (bo->handles[p].u32 == bo->handles[plane].u32)
676 void drv_log_prefix(const char *prefix, const char *file, int line, const char *format, ...)
679 snprintf(buf, sizeof(buf), "[%s:%s(%d)]", prefix, basename(file), line);
682 va_start(args, format);
684 __android_log_vprint(ANDROID_LOG_ERROR, buf, format, args);
686 fprintf(stderr, "%s ", buf);
687 vfprintf(stderr, format, args);
692 int drv_resource_info(struct bo *bo, uint32_t strides[DRV_MAX_PLANES],
693 uint32_t offsets[DRV_MAX_PLANES])
695 for (uint32_t plane = 0; plane < bo->meta.num_planes; plane++) {
696 strides[plane] = bo->meta.strides[plane];
697 offsets[plane] = bo->meta.offsets[plane];
700 if (bo->drv->backend->resource_info)
701 return bo->drv->backend->resource_info(bo, strides, offsets);