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>
24 extern struct backend backend_amdgpu;
26 extern struct backend backend_cirrus;
27 extern struct backend backend_evdi;
29 extern struct backend backend_exynos;
31 extern struct backend backend_gma500;
33 extern struct backend backend_i915;
36 extern struct backend backend_marvell;
39 extern struct backend backend_mediatek;
41 extern struct backend backend_nouveau;
43 extern struct backend backend_radeon;
46 extern struct backend backend_rockchip;
49 extern struct backend backend_tegra;
51 extern struct backend backend_udl;
53 extern struct backend backend_vc4;
55 extern struct backend backend_vgem;
56 extern struct backend backend_virtio_gpu;
58 static struct backend *drv_get_backend(int fd)
60 drmVersionPtr drm_version;
63 drm_version = drmGetVersion(fd);
68 struct backend *backend_list[] = {
72 &backend_cirrus, &backend_evdi,
100 &backend_vgem, &backend_virtio_gpu,
103 for (i = 0; i < ARRAY_SIZE(backend_list); i++)
104 if (!strcmp(drm_version->name, backend_list[i]->name)) {
105 drmFreeVersion(drm_version);
106 return backend_list[i];
109 drmFreeVersion(drm_version);
113 struct driver *drv_create(int fd)
118 drv = (struct driver *)calloc(1, sizeof(*drv));
124 drv->backend = drv_get_backend(fd);
129 if (pthread_mutex_init(&drv->driver_lock, NULL))
132 drv->buffer_table = drmHashCreate();
133 if (!drv->buffer_table)
136 drv->map_table = drmHashCreate();
138 goto free_buffer_table;
140 /* Start with a power of 2 number of allocations. */
141 drv->combos.allocations = 2;
142 drv->combos.size = 0;
144 drv->combos.data = calloc(drv->combos.allocations, sizeof(struct combination));
145 if (!drv->combos.data)
148 if (drv->backend->init) {
149 ret = drv->backend->init(drv);
151 free(drv->combos.data);
159 drmHashDestroy(drv->map_table);
161 drmHashDestroy(drv->buffer_table);
163 pthread_mutex_destroy(&drv->driver_lock);
169 void drv_destroy(struct driver *drv)
171 pthread_mutex_lock(&drv->driver_lock);
173 if (drv->backend->close)
174 drv->backend->close(drv);
176 drmHashDestroy(drv->buffer_table);
177 drmHashDestroy(drv->map_table);
179 free(drv->combos.data);
181 pthread_mutex_unlock(&drv->driver_lock);
182 pthread_mutex_destroy(&drv->driver_lock);
187 int drv_get_fd(struct driver *drv)
192 const char *drv_get_name(struct driver *drv)
194 return drv->backend->name;
197 struct combination *drv_get_combination(struct driver *drv, uint32_t format, uint64_t use_flags)
199 struct combination *curr, *best;
201 if (format == DRM_FORMAT_NONE || use_flags == BO_USE_NONE)
206 for (i = 0; i < drv->combos.size; i++) {
207 curr = &drv->combos.data[i];
208 if ((format == curr->format) && use_flags == (curr->use_flags & use_flags))
209 if (!best || best->metadata.priority < curr->metadata.priority)
216 struct bo *drv_bo_new(struct driver *drv, uint32_t width, uint32_t height, uint32_t format,
221 bo = (struct bo *)calloc(1, sizeof(*bo));
230 bo->use_flags = use_flags;
231 bo->num_planes = drv_num_planes_from_format(format);
233 if (!bo->num_planes) {
241 struct bo *drv_bo_create(struct driver *drv, uint32_t width, uint32_t height, uint32_t format,
248 bo = drv_bo_new(drv, width, height, format, use_flags);
253 ret = drv->backend->bo_create(bo, width, height, format, use_flags);
260 pthread_mutex_lock(&drv->driver_lock);
262 for (plane = 0; plane < bo->num_planes; plane++) {
264 assert(bo->offsets[plane] >= bo->offsets[plane - 1]);
266 drv_increment_reference_count(drv, bo, plane);
269 pthread_mutex_unlock(&drv->driver_lock);
274 struct bo *drv_bo_create_with_modifiers(struct driver *drv, uint32_t width, uint32_t height,
275 uint32_t format, const uint64_t *modifiers, uint32_t count)
281 if (!drv->backend->bo_create_with_modifiers) {
286 bo = drv_bo_new(drv, width, height, format, BO_USE_NONE);
291 ret = drv->backend->bo_create_with_modifiers(bo, width, height, format, modifiers, count);
298 pthread_mutex_lock(&drv->driver_lock);
300 for (plane = 0; plane < bo->num_planes; plane++) {
302 assert(bo->offsets[plane] >= bo->offsets[plane - 1]);
304 drv_increment_reference_count(drv, bo, plane);
307 pthread_mutex_unlock(&drv->driver_lock);
312 void drv_bo_destroy(struct bo *bo)
316 struct driver *drv = bo->drv;
318 pthread_mutex_lock(&drv->driver_lock);
320 for (plane = 0; plane < bo->num_planes; plane++)
321 drv_decrement_reference_count(drv, bo, plane);
323 for (plane = 0; plane < bo->num_planes; plane++)
324 total += drv_get_reference_count(drv, bo, plane);
326 pthread_mutex_unlock(&drv->driver_lock);
329 assert(drv_map_info_destroy(bo) == 0);
330 bo->drv->backend->bo_destroy(bo);
336 struct bo *drv_bo_import(struct driver *drv, struct drv_import_fd_data *data)
343 bo = drv_bo_new(drv, data->width, data->height, data->format, data->use_flags);
348 ret = drv->backend->bo_import(bo, data);
354 for (plane = 0; plane < bo->num_planes; plane++) {
355 bo->strides[plane] = data->strides[plane];
356 bo->offsets[plane] = data->offsets[plane];
357 bo->format_modifiers[plane] = data->format_modifiers[plane];
359 seek_end = lseek(data->fds[plane], 0, SEEK_END);
360 if (seek_end == (off_t)(-1)) {
361 fprintf(stderr, "drv: lseek() failed with %s\n", strerror(errno));
365 lseek(data->fds[plane], 0, SEEK_SET);
366 if (plane == bo->num_planes - 1 || data->offsets[plane + 1] == 0)
367 bo->sizes[plane] = seek_end - data->offsets[plane];
369 bo->sizes[plane] = data->offsets[plane + 1] - data->offsets[plane];
371 if ((int64_t)bo->offsets[plane] + bo->sizes[plane] > seek_end) {
372 fprintf(stderr, "drv: buffer size is too large.\n");
376 bo->total_size += bo->sizes[plane];
386 void *drv_bo_map(struct bo *bo, uint32_t x, uint32_t y, uint32_t width, uint32_t height,
387 uint32_t map_flags, struct map_info **map_data, size_t plane)
392 struct map_info *data;
396 assert(x + width <= drv_bo_get_width(bo));
397 assert(y + height <= drv_bo_get_height(bo));
398 assert(BO_MAP_READ_WRITE & map_flags);
399 /* No CPU access for protected buffers. */
400 assert(!(bo->use_flags & BO_USE_PROTECTED));
402 pthread_mutex_lock(&bo->drv->driver_lock);
404 if (!drmHashLookup(bo->drv->map_table, bo->handles[plane].u32, &ptr)) {
405 data = (struct map_info *)ptr;
406 /* TODO(gsingh): support mapping same buffer with different flags. */
407 assert(data->map_flags == map_flags);
412 data = calloc(1, sizeof(*data));
413 addr = bo->drv->backend->bo_map(bo, data, plane, map_flags);
414 if (addr == MAP_FAILED) {
417 pthread_mutex_unlock(&bo->drv->driver_lock);
423 data->handle = bo->handles[plane].u32;
424 data->map_flags = map_flags;
425 drmHashInsert(bo->drv->map_table, bo->handles[plane].u32, (void *)data);
428 drv_bo_invalidate(bo, data);
430 offset = drv_bo_get_plane_stride(bo, plane) * y;
431 offset += drv_stride_from_format(bo->format, x, plane);
432 addr = (uint8_t *)data->addr;
433 addr += drv_bo_get_plane_offset(bo, plane) + offset;
434 pthread_mutex_unlock(&bo->drv->driver_lock);
439 int drv_bo_unmap(struct bo *bo, struct map_info *data)
441 int ret = drv_bo_flush(bo, data);
445 pthread_mutex_lock(&bo->drv->driver_lock);
447 if (!--data->refcount) {
448 ret = bo->drv->backend->bo_unmap(bo, data);
449 drmHashDelete(bo->drv->map_table, data->handle);
453 pthread_mutex_unlock(&bo->drv->driver_lock);
458 int drv_bo_invalidate(struct bo *bo, struct map_info *data)
462 assert(data->refcount >= 0);
464 if (bo->drv->backend->bo_invalidate)
465 ret = bo->drv->backend->bo_invalidate(bo, data);
470 int drv_bo_flush(struct bo *bo, struct map_info *data)
474 assert(data->refcount >= 0);
475 assert(!(bo->use_flags & BO_USE_PROTECTED));
477 if (bo->drv->backend->bo_flush)
478 ret = bo->drv->backend->bo_flush(bo, data);
483 uint32_t drv_bo_get_width(struct bo *bo)
488 uint32_t drv_bo_get_height(struct bo *bo)
493 uint32_t drv_bo_get_stride_or_tiling(struct bo *bo)
495 return bo->tiling ? bo->tiling : drv_bo_get_plane_stride(bo, 0);
498 size_t drv_bo_get_num_planes(struct bo *bo)
500 return bo->num_planes;
503 union bo_handle drv_bo_get_plane_handle(struct bo *bo, size_t plane)
505 return bo->handles[plane];
509 #define DRM_RDWR O_RDWR
512 int drv_bo_get_plane_fd(struct bo *bo, size_t plane)
516 assert(plane < bo->num_planes);
518 ret = drmPrimeHandleToFD(bo->drv->fd, bo->handles[plane].u32, DRM_CLOEXEC | DRM_RDWR, &fd);
520 return (ret) ? ret : fd;
523 uint32_t drv_bo_get_plane_offset(struct bo *bo, size_t plane)
525 assert(plane < bo->num_planes);
526 return bo->offsets[plane];
529 uint32_t drv_bo_get_plane_size(struct bo *bo, size_t plane)
531 assert(plane < bo->num_planes);
532 return bo->sizes[plane];
535 uint32_t drv_bo_get_plane_stride(struct bo *bo, size_t plane)
537 assert(plane < bo->num_planes);
538 return bo->strides[plane];
541 uint64_t drv_bo_get_plane_format_modifier(struct bo *bo, size_t plane)
543 assert(plane < bo->num_planes);
544 return bo->format_modifiers[plane];
547 uint32_t drv_bo_get_format(struct bo *bo)
552 uint32_t drv_resolve_format(struct driver *drv, uint32_t format, uint64_t use_flags)
554 if (drv->backend->resolve_format)
555 return drv->backend->resolve_format(format, use_flags);
560 size_t drv_num_planes_from_format(uint32_t format)
563 case DRM_FORMAT_ABGR1555:
564 case DRM_FORMAT_ABGR2101010:
565 case DRM_FORMAT_ABGR4444:
566 case DRM_FORMAT_ABGR8888:
567 case DRM_FORMAT_ARGB1555:
568 case DRM_FORMAT_ARGB2101010:
569 case DRM_FORMAT_ARGB4444:
570 case DRM_FORMAT_ARGB8888:
571 case DRM_FORMAT_AYUV:
572 case DRM_FORMAT_BGR233:
573 case DRM_FORMAT_BGR565:
574 case DRM_FORMAT_BGR888:
575 case DRM_FORMAT_BGRA1010102:
576 case DRM_FORMAT_BGRA4444:
577 case DRM_FORMAT_BGRA5551:
578 case DRM_FORMAT_BGRA8888:
579 case DRM_FORMAT_BGRX1010102:
580 case DRM_FORMAT_BGRX4444:
581 case DRM_FORMAT_BGRX5551:
582 case DRM_FORMAT_BGRX8888:
584 case DRM_FORMAT_GR88:
586 case DRM_FORMAT_RG88:
587 case DRM_FORMAT_RGB332:
588 case DRM_FORMAT_RGB565:
589 case DRM_FORMAT_RGB888:
590 case DRM_FORMAT_RGBA1010102:
591 case DRM_FORMAT_RGBA4444:
592 case DRM_FORMAT_RGBA5551:
593 case DRM_FORMAT_RGBA8888:
594 case DRM_FORMAT_RGBX1010102:
595 case DRM_FORMAT_RGBX4444:
596 case DRM_FORMAT_RGBX5551:
597 case DRM_FORMAT_RGBX8888:
598 case DRM_FORMAT_UYVY:
599 case DRM_FORMAT_VYUY:
600 case DRM_FORMAT_XBGR1555:
601 case DRM_FORMAT_XBGR2101010:
602 case DRM_FORMAT_XBGR4444:
603 case DRM_FORMAT_XBGR8888:
604 case DRM_FORMAT_XRGB1555:
605 case DRM_FORMAT_XRGB2101010:
606 case DRM_FORMAT_XRGB4444:
607 case DRM_FORMAT_XRGB8888:
608 case DRM_FORMAT_YUYV:
609 case DRM_FORMAT_YVYU:
611 case DRM_FORMAT_NV12:
612 case DRM_FORMAT_NV21:
614 case DRM_FORMAT_YVU420:
615 case DRM_FORMAT_YVU420_ANDROID:
619 fprintf(stderr, "drv: UNKNOWN FORMAT %d\n", format);
623 uint32_t drv_num_buffers_per_bo(struct bo *bo)
628 for (plane = 0; plane < bo->num_planes; plane++) {
629 for (p = 0; p < plane; p++)
630 if (bo->handles[p].u32 == bo->handles[plane].u32)