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++)
263 drv_increment_reference_count(drv, bo, plane);
265 pthread_mutex_unlock(&drv->driver_lock);
270 struct bo *drv_bo_create_with_modifiers(struct driver *drv, uint32_t width, uint32_t height,
271 uint32_t format, const uint64_t *modifiers, uint32_t count)
277 if (!drv->backend->bo_create_with_modifiers) {
282 bo = drv_bo_new(drv, width, height, format, BO_USE_NONE);
287 ret = drv->backend->bo_create_with_modifiers(bo, width, height, format, modifiers, count);
294 pthread_mutex_lock(&drv->driver_lock);
296 for (plane = 0; plane < bo->num_planes; plane++)
297 drv_increment_reference_count(drv, bo, plane);
299 pthread_mutex_unlock(&drv->driver_lock);
304 void drv_bo_destroy(struct bo *bo)
308 struct driver *drv = bo->drv;
310 pthread_mutex_lock(&drv->driver_lock);
312 for (plane = 0; plane < bo->num_planes; plane++)
313 drv_decrement_reference_count(drv, bo, plane);
315 for (plane = 0; plane < bo->num_planes; plane++)
316 total += drv_get_reference_count(drv, bo, plane);
318 pthread_mutex_unlock(&drv->driver_lock);
321 assert(drv_map_info_destroy(bo) == 0);
322 bo->drv->backend->bo_destroy(bo);
328 struct bo *drv_bo_import(struct driver *drv, struct drv_import_fd_data *data)
334 bo = drv_bo_new(drv, data->width, data->height, data->format, data->use_flags);
339 ret = drv->backend->bo_import(bo, data);
345 for (plane = 0; plane < bo->num_planes; plane++) {
346 bo->strides[plane] = data->strides[plane];
347 bo->offsets[plane] = data->offsets[plane];
348 bo->format_modifiers[plane] = data->format_modifiers[plane];
349 if (plane == bo->num_planes - 1 || data->offsets[plane + 1] == 0) {
351 lseek(data->fds[plane], 0, SEEK_END) - data->offsets[plane];
352 lseek(data->fds[plane], 0, SEEK_SET);
354 bo->sizes[plane] = data->offsets[plane + 1] - data->offsets[plane];
357 bo->total_size += bo->sizes[plane];
363 void *drv_bo_map(struct bo *bo, uint32_t x, uint32_t y, uint32_t width, uint32_t height,
364 uint32_t flags, struct map_info **map_data, size_t plane)
369 struct map_info *data;
374 assert(x + width <= drv_bo_get_width(bo));
375 assert(y + height <= drv_bo_get_height(bo));
376 assert(BO_TRANSFER_READ_WRITE & flags);
378 pthread_mutex_lock(&bo->drv->driver_lock);
380 if (!drmHashLookup(bo->drv->map_table, bo->handles[plane].u32, &ptr)) {
381 data = (struct map_info *)ptr;
386 data = calloc(1, sizeof(*data));
387 prot = BO_TRANSFER_WRITE & flags ? PROT_WRITE | PROT_READ : PROT_READ;
388 addr = bo->drv->backend->bo_map(bo, data, plane, prot);
389 if (addr == MAP_FAILED) {
392 pthread_mutex_unlock(&bo->drv->driver_lock);
398 data->handle = bo->handles[plane].u32;
399 drmHashInsert(bo->drv->map_table, bo->handles[plane].u32, (void *)data);
403 offset = drv_bo_get_plane_stride(bo, plane) * y;
404 offset += drv_stride_from_format(bo->format, x, plane);
405 addr = (uint8_t *)data->addr;
406 addr += drv_bo_get_plane_offset(bo, plane) + offset;
407 pthread_mutex_unlock(&bo->drv->driver_lock);
412 int drv_bo_unmap(struct bo *bo, struct map_info *data)
414 int ret = drv_bo_flush(bo, data);
418 pthread_mutex_lock(&bo->drv->driver_lock);
420 if (!--data->refcount) {
421 ret = bo->drv->backend->bo_unmap(bo, data);
422 drmHashDelete(bo->drv->map_table, data->handle);
426 pthread_mutex_unlock(&bo->drv->driver_lock);
431 int drv_bo_flush(struct bo *bo, struct map_info *data)
435 assert(data->refcount >= 0);
437 if (bo->drv->backend->bo_flush)
438 ret = bo->drv->backend->bo_flush(bo, data);
443 uint32_t drv_bo_get_width(struct bo *bo)
448 uint32_t drv_bo_get_height(struct bo *bo)
453 uint32_t drv_bo_get_stride_or_tiling(struct bo *bo)
455 return bo->tiling ? bo->tiling : drv_bo_get_plane_stride(bo, 0);
458 size_t drv_bo_get_num_planes(struct bo *bo)
460 return bo->num_planes;
463 union bo_handle drv_bo_get_plane_handle(struct bo *bo, size_t plane)
465 return bo->handles[plane];
469 #define DRM_RDWR O_RDWR
472 int drv_bo_get_plane_fd(struct bo *bo, size_t plane)
476 assert(plane < bo->num_planes);
478 ret = drmPrimeHandleToFD(bo->drv->fd, bo->handles[plane].u32, DRM_CLOEXEC | DRM_RDWR, &fd);
480 return (ret) ? ret : fd;
483 uint32_t drv_bo_get_plane_offset(struct bo *bo, size_t plane)
485 assert(plane < bo->num_planes);
486 return bo->offsets[plane];
489 uint32_t drv_bo_get_plane_size(struct bo *bo, size_t plane)
491 assert(plane < bo->num_planes);
492 return bo->sizes[plane];
495 uint32_t drv_bo_get_plane_stride(struct bo *bo, size_t plane)
497 assert(plane < bo->num_planes);
498 return bo->strides[plane];
501 uint64_t drv_bo_get_plane_format_modifier(struct bo *bo, size_t plane)
503 assert(plane < bo->num_planes);
504 return bo->format_modifiers[plane];
507 uint32_t drv_bo_get_format(struct bo *bo)
512 uint32_t drv_resolve_format(struct driver *drv, uint32_t format, uint64_t use_flags)
514 if (drv->backend->resolve_format)
515 return drv->backend->resolve_format(format, use_flags);
520 size_t drv_num_planes_from_format(uint32_t format)
523 case DRM_FORMAT_ABGR1555:
524 case DRM_FORMAT_ABGR2101010:
525 case DRM_FORMAT_ABGR4444:
526 case DRM_FORMAT_ABGR8888:
527 case DRM_FORMAT_ARGB1555:
528 case DRM_FORMAT_ARGB2101010:
529 case DRM_FORMAT_ARGB4444:
530 case DRM_FORMAT_ARGB8888:
531 case DRM_FORMAT_AYUV:
532 case DRM_FORMAT_BGR233:
533 case DRM_FORMAT_BGR565:
534 case DRM_FORMAT_BGR888:
535 case DRM_FORMAT_BGRA1010102:
536 case DRM_FORMAT_BGRA4444:
537 case DRM_FORMAT_BGRA5551:
538 case DRM_FORMAT_BGRA8888:
539 case DRM_FORMAT_BGRX1010102:
540 case DRM_FORMAT_BGRX4444:
541 case DRM_FORMAT_BGRX5551:
542 case DRM_FORMAT_BGRX8888:
544 case DRM_FORMAT_GR88:
546 case DRM_FORMAT_RG88:
547 case DRM_FORMAT_RGB332:
548 case DRM_FORMAT_RGB565:
549 case DRM_FORMAT_RGB888:
550 case DRM_FORMAT_RGBA1010102:
551 case DRM_FORMAT_RGBA4444:
552 case DRM_FORMAT_RGBA5551:
553 case DRM_FORMAT_RGBA8888:
554 case DRM_FORMAT_RGBX1010102:
555 case DRM_FORMAT_RGBX4444:
556 case DRM_FORMAT_RGBX5551:
557 case DRM_FORMAT_RGBX8888:
558 case DRM_FORMAT_UYVY:
559 case DRM_FORMAT_VYUY:
560 case DRM_FORMAT_XBGR1555:
561 case DRM_FORMAT_XBGR2101010:
562 case DRM_FORMAT_XBGR4444:
563 case DRM_FORMAT_XBGR8888:
564 case DRM_FORMAT_XRGB1555:
565 case DRM_FORMAT_XRGB2101010:
566 case DRM_FORMAT_XRGB4444:
567 case DRM_FORMAT_XRGB8888:
568 case DRM_FORMAT_YUYV:
569 case DRM_FORMAT_YVYU:
571 case DRM_FORMAT_NV12:
572 case DRM_FORMAT_NV21:
574 case DRM_FORMAT_YVU420:
575 case DRM_FORMAT_YVU420_ANDROID:
579 fprintf(stderr, "drv: UNKNOWN FORMAT %d\n", format);
583 uint32_t drv_num_buffers_per_bo(struct bo *bo)
588 for (plane = 0; plane < bo->num_planes; plane++) {
589 for (p = 0; p < plane; p++)
590 if (bo->handles[p].u32 == bo->handles[plane].u32)