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_tegra;
60 extern const struct backend backend_udl;
62 extern const struct backend backend_vc4;
64 extern const struct backend backend_vgem;
65 extern const struct backend backend_virtio_gpu;
67 static const struct backend *drv_get_backend(int fd)
69 drmVersionPtr drm_version;
72 drm_version = drmGetVersion(fd);
77 const struct backend *backend_list[] = {
114 &backend_vgem, &backend_virtio_gpu,
117 for (i = 0; i < ARRAY_SIZE(backend_list); i++)
118 if (!strcmp(drm_version->name, backend_list[i]->name)) {
119 drmFreeVersion(drm_version);
120 return backend_list[i];
123 drmFreeVersion(drm_version);
127 struct driver *drv_create(int fd)
132 drv = (struct driver *)calloc(1, sizeof(*drv));
138 drv->backend = drv_get_backend(fd);
143 if (pthread_mutex_init(&drv->driver_lock, NULL))
146 drv->buffer_table = drmHashCreate();
147 if (!drv->buffer_table)
150 drv->mappings = drv_array_init(sizeof(struct mapping));
152 goto free_buffer_table;
154 drv->combos = drv_array_init(sizeof(struct combination));
158 if (drv->backend->init) {
159 ret = drv->backend->init(drv);
161 drv_array_destroy(drv->combos);
169 drv_array_destroy(drv->mappings);
171 drmHashDestroy(drv->buffer_table);
173 pthread_mutex_destroy(&drv->driver_lock);
179 void drv_destroy(struct driver *drv)
181 pthread_mutex_lock(&drv->driver_lock);
183 if (drv->backend->close)
184 drv->backend->close(drv);
186 drmHashDestroy(drv->buffer_table);
187 drv_array_destroy(drv->mappings);
188 drv_array_destroy(drv->combos);
190 pthread_mutex_unlock(&drv->driver_lock);
191 pthread_mutex_destroy(&drv->driver_lock);
196 int drv_get_fd(struct driver *drv)
201 const char *drv_get_name(struct driver *drv)
203 return drv->backend->name;
206 struct combination *drv_get_combination(struct driver *drv, uint32_t format, uint64_t use_flags)
208 struct combination *curr, *best;
210 if (format == DRM_FORMAT_NONE || use_flags == BO_USE_NONE)
215 for (i = 0; i < drv_array_size(drv->combos); i++) {
216 curr = drv_array_at_idx(drv->combos, i);
217 if ((format == curr->format) && use_flags == (curr->use_flags & use_flags))
218 if (!best || best->metadata.priority < curr->metadata.priority)
225 struct bo *drv_bo_new(struct driver *drv, uint32_t width, uint32_t height, uint32_t format,
230 bo = (struct bo *)calloc(1, sizeof(*bo));
239 bo->use_flags = use_flags;
240 bo->num_planes = drv_num_planes_from_format(format);
242 if (!bo->num_planes) {
250 struct bo *drv_bo_create(struct driver *drv, uint32_t width, uint32_t height, uint32_t format,
257 bo = drv_bo_new(drv, width, height, format, use_flags);
262 ret = drv->backend->bo_create(bo, width, height, format, use_flags);
269 pthread_mutex_lock(&drv->driver_lock);
271 for (plane = 0; plane < bo->num_planes; plane++) {
273 assert(bo->offsets[plane] >= bo->offsets[plane - 1]);
275 drv_increment_reference_count(drv, bo, plane);
278 pthread_mutex_unlock(&drv->driver_lock);
283 struct bo *drv_bo_create_with_modifiers(struct driver *drv, uint32_t width, uint32_t height,
284 uint32_t format, const uint64_t *modifiers, uint32_t count)
290 if (!drv->backend->bo_create_with_modifiers) {
295 bo = drv_bo_new(drv, width, height, format, BO_USE_NONE);
300 ret = drv->backend->bo_create_with_modifiers(bo, width, height, format, modifiers, count);
307 pthread_mutex_lock(&drv->driver_lock);
309 for (plane = 0; plane < bo->num_planes; plane++) {
311 assert(bo->offsets[plane] >= bo->offsets[plane - 1]);
313 drv_increment_reference_count(drv, bo, plane);
316 pthread_mutex_unlock(&drv->driver_lock);
321 void drv_bo_destroy(struct bo *bo)
325 struct driver *drv = bo->drv;
327 pthread_mutex_lock(&drv->driver_lock);
329 for (plane = 0; plane < bo->num_planes; plane++)
330 drv_decrement_reference_count(drv, bo, plane);
332 for (plane = 0; plane < bo->num_planes; plane++)
333 total += drv_get_reference_count(drv, bo, plane);
335 pthread_mutex_unlock(&drv->driver_lock);
338 assert(drv_mapping_destroy(bo) == 0);
339 bo->drv->backend->bo_destroy(bo);
345 struct bo *drv_bo_import(struct driver *drv, struct drv_import_fd_data *data)
352 bo = drv_bo_new(drv, data->width, data->height, data->format, data->use_flags);
357 ret = drv->backend->bo_import(bo, data);
363 for (plane = 0; plane < bo->num_planes; plane++) {
364 bo->strides[plane] = data->strides[plane];
365 bo->offsets[plane] = data->offsets[plane];
366 bo->format_modifiers[plane] = data->format_modifiers[plane];
368 seek_end = lseek(data->fds[plane], 0, SEEK_END);
369 if (seek_end == (off_t)(-1)) {
370 drv_log("lseek() failed with %s\n", strerror(errno));
374 lseek(data->fds[plane], 0, SEEK_SET);
375 if (plane == bo->num_planes - 1 || data->offsets[plane + 1] == 0)
376 bo->sizes[plane] = seek_end - data->offsets[plane];
378 bo->sizes[plane] = data->offsets[plane + 1] - data->offsets[plane];
380 if ((int64_t)bo->offsets[plane] + bo->sizes[plane] > seek_end) {
381 drv_log("buffer size is too large.\n");
385 bo->total_size += bo->sizes[plane];
395 void *drv_bo_map(struct bo *bo, const struct rectangle *rect, uint32_t map_flags,
396 struct mapping **map_data, size_t plane)
400 struct mapping mapping;
402 assert(rect->width >= 0);
403 assert(rect->height >= 0);
404 assert(rect->x + rect->width <= drv_bo_get_width(bo));
405 assert(rect->y + rect->height <= drv_bo_get_height(bo));
406 assert(BO_MAP_READ_WRITE & map_flags);
407 /* No CPU access for protected buffers. */
408 assert(!(bo->use_flags & BO_USE_PROTECTED));
410 memset(&mapping, 0, sizeof(mapping));
411 mapping.rect = *rect;
412 mapping.refcount = 1;
414 pthread_mutex_lock(&bo->drv->driver_lock);
416 for (i = 0; i < drv_array_size(bo->drv->mappings); i++) {
417 struct mapping *prior = (struct mapping *)drv_array_at_idx(bo->drv->mappings, i);
418 if (prior->vma->handle != bo->handles[plane].u32 ||
419 prior->vma->map_flags != map_flags)
422 if (rect->x != prior->rect.x || rect->y != prior->rect.y ||
423 rect->width != prior->rect.width || rect->height != prior->rect.height)
431 for (i = 0; i < drv_array_size(bo->drv->mappings); i++) {
432 struct mapping *prior = (struct mapping *)drv_array_at_idx(bo->drv->mappings, i);
433 if (prior->vma->handle != bo->handles[plane].u32 ||
434 prior->vma->map_flags != map_flags)
437 prior->vma->refcount++;
438 mapping.vma = prior->vma;
442 mapping.vma = calloc(1, sizeof(*mapping.vma));
443 memcpy(mapping.vma->map_strides, bo->strides, sizeof(mapping.vma->map_strides));
444 addr = bo->drv->backend->bo_map(bo, mapping.vma, plane, map_flags);
445 if (addr == MAP_FAILED) {
448 pthread_mutex_unlock(&bo->drv->driver_lock);
452 mapping.vma->refcount = 1;
453 mapping.vma->addr = addr;
454 mapping.vma->handle = bo->handles[plane].u32;
455 mapping.vma->map_flags = map_flags;
458 *map_data = drv_array_append(bo->drv->mappings, &mapping);
460 drv_bo_invalidate(bo, *map_data);
461 addr = (uint8_t *)((*map_data)->vma->addr);
462 addr += drv_bo_get_plane_offset(bo, plane);
463 pthread_mutex_unlock(&bo->drv->driver_lock);
467 int drv_bo_unmap(struct bo *bo, struct mapping *mapping)
472 pthread_mutex_lock(&bo->drv->driver_lock);
474 if (--mapping->refcount)
477 if (!--mapping->vma->refcount) {
478 ret = bo->drv->backend->bo_unmap(bo, mapping->vma);
482 for (i = 0; i < drv_array_size(bo->drv->mappings); i++) {
483 if (mapping == (struct mapping *)drv_array_at_idx(bo->drv->mappings, i)) {
484 drv_array_remove(bo->drv->mappings, i);
490 pthread_mutex_unlock(&bo->drv->driver_lock);
494 int drv_bo_invalidate(struct bo *bo, struct mapping *mapping)
499 assert(mapping->vma);
500 assert(mapping->refcount > 0);
501 assert(mapping->vma->refcount > 0);
503 if (bo->drv->backend->bo_invalidate)
504 ret = bo->drv->backend->bo_invalidate(bo, mapping);
509 int drv_bo_flush_or_unmap(struct bo *bo, struct mapping *mapping)
514 assert(mapping->vma);
515 assert(mapping->refcount > 0);
516 assert(mapping->vma->refcount > 0);
517 assert(!(bo->use_flags & BO_USE_PROTECTED));
519 if (bo->drv->backend->bo_flush)
520 ret = bo->drv->backend->bo_flush(bo, mapping);
522 ret = drv_bo_unmap(bo, mapping);
527 uint32_t drv_bo_get_width(struct bo *bo)
532 uint32_t drv_bo_get_height(struct bo *bo)
537 uint32_t drv_bo_get_stride_or_tiling(struct bo *bo)
539 return bo->tiling ? bo->tiling : drv_bo_get_plane_stride(bo, 0);
542 size_t drv_bo_get_num_planes(struct bo *bo)
544 return bo->num_planes;
547 union bo_handle drv_bo_get_plane_handle(struct bo *bo, size_t plane)
549 return bo->handles[plane];
553 #define DRM_RDWR O_RDWR
556 int drv_bo_get_plane_fd(struct bo *bo, size_t plane)
560 assert(plane < bo->num_planes);
562 ret = drmPrimeHandleToFD(bo->drv->fd, bo->handles[plane].u32, DRM_CLOEXEC | DRM_RDWR, &fd);
564 // Older DRM implementations blocked DRM_RDWR, but gave a read/write mapping anyways
566 ret = drmPrimeHandleToFD(bo->drv->fd, bo->handles[plane].u32, DRM_CLOEXEC, &fd);
568 return (ret) ? ret : fd;
571 uint32_t drv_bo_get_plane_offset(struct bo *bo, size_t plane)
573 assert(plane < bo->num_planes);
574 return bo->offsets[plane];
577 uint32_t drv_bo_get_plane_size(struct bo *bo, size_t plane)
579 assert(plane < bo->num_planes);
580 return bo->sizes[plane];
583 uint32_t drv_bo_get_plane_stride(struct bo *bo, size_t plane)
585 assert(plane < bo->num_planes);
586 return bo->strides[plane];
589 uint64_t drv_bo_get_plane_format_modifier(struct bo *bo, size_t plane)
591 assert(plane < bo->num_planes);
592 return bo->format_modifiers[plane];
595 uint32_t drv_bo_get_format(struct bo *bo)
600 uint32_t drv_resolve_format(struct driver *drv, uint32_t format, uint64_t use_flags)
602 if (drv->backend->resolve_format)
603 return drv->backend->resolve_format(format, use_flags);
608 uint32_t drv_num_buffers_per_bo(struct bo *bo)
613 for (plane = 0; plane < bo->num_planes; plane++) {
614 for (p = 0; p < plane; p++)
615 if (bo->handles[p].u32 == bo->handles[plane].u32)
624 void drv_log_prefix(const char *prefix, const char *file, int line, const char *format, ...)
627 snprintf(buf, sizeof(buf), "[%s:%s(%d)]", prefix, basename(file), line);
630 va_start(args, format);
632 __android_log_vprint(ANDROID_LOG_ERROR, buf, format, args);
634 fprintf(stderr, "%s ", buf);
635 vfprintf(stderr, format, args);