2 * Copyright 2017 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.
19 static const uint32_t supported_formats[] = {
20 DRM_FORMAT_ARGB8888, DRM_FORMAT_RGB565, DRM_FORMAT_XRGB8888
23 static int vc4_init(struct driver *drv)
25 return drv_add_linear_combinations(drv, supported_formats,
26 ARRAY_SIZE(supported_formats));
29 static int vc4_bo_create(struct bo *bo, uint32_t width, uint32_t height,
30 uint32_t format, uint32_t flags)
34 struct drm_vc4_create_bo bo_create;
36 drv_bo_from_format(bo, width, height, format);
38 memset(&bo_create, 0, sizeof(bo_create));
39 bo_create.size = bo->total_size;
41 ret = drmIoctl(bo->drv->fd, DRM_IOCTL_VC4_CREATE_BO, &bo_create);
43 fprintf(stderr, "drv: DRM_IOCTL_VC4_GEM_CREATE failed "
44 "(size=%zu)\n", bo->total_size);
48 for (plane = 0; plane < bo->num_planes; plane++)
49 bo->handles[plane].u32 = bo_create.handle;
54 static void *vc4_bo_map(struct bo *bo, struct map_info *data, size_t plane)
57 struct drm_vc4_mmap_bo bo_map;
59 memset(&bo_map, 0, sizeof(bo_map));
60 bo_map.handle = bo->handles[0].u32;
62 ret = drmCommandWriteRead(bo->drv->fd, DRM_VC4_MMAP_BO, &bo_map,
65 fprintf(stderr, "drv: DRM_VC4_MMAP_BO failed\n");
69 data->length = bo->total_size;
71 return mmap(0, bo->total_size, PROT_READ | PROT_WRITE, MAP_SHARED,
72 bo->drv->fd, bo_map.offset);
75 struct backend backend_vc4 =
79 .bo_create = vc4_bo_create,
80 .bo_import = drv_prime_bo_import,
81 .bo_destroy = drv_gem_bo_destroy,