2 * Copyright (c) 2014 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.
14 #include <exynos_drm.h>
20 static struct supported_combination combos[5] = {
21 {DRM_FORMAT_ARGB8888, DRM_FORMAT_MOD_NONE, BO_USE_CURSOR | BO_USE_LINEAR},
22 {DRM_FORMAT_ARGB8888, DRM_FORMAT_MOD_NONE, BO_USE_RENDERING},
23 {DRM_FORMAT_NV12, DRM_FORMAT_MOD_NONE, BO_USE_RENDERING},
24 {DRM_FORMAT_XRGB8888, DRM_FORMAT_MOD_NONE, BO_USE_CURSOR | BO_USE_LINEAR},
25 {DRM_FORMAT_XRGB8888, DRM_FORMAT_MOD_NONE, BO_USE_RENDERING},
28 static int exynos_init(struct driver *drv)
30 drv_insert_combinations(drv, combos, ARRAY_SIZE(combos));
31 return drv_add_kms_flags(drv);
34 static int exynos_bo_create(struct bo *bo, uint32_t width, uint32_t height,
35 uint32_t format, uint32_t flags)
39 if (format == DRM_FORMAT_NV12) {
40 uint32_t chroma_height;
41 /* V4L2 s5p-mfc requires width to be 16 byte aligned and height 32. */
42 width = ALIGN(width, 16);
43 height = ALIGN(height, 32);
44 chroma_height = ALIGN(height / 2, 32);
45 bo->strides[0] = bo->strides[1] = width;
46 /* MFC v8+ requires 64 byte padding in the end of luma and chroma buffers. */
47 bo->sizes[0] = bo->strides[0] * height + 64;
48 bo->sizes[1] = bo->strides[1] * chroma_height + 64;
49 bo->offsets[0] = bo->offsets[1] = 0;
50 bo->total_size = bo->sizes[0] + bo->sizes[1];
51 } else if (format == DRM_FORMAT_XRGB8888 || format == DRM_FORMAT_ARGB8888) {
52 bo->strides[0] = drv_stride_from_format(format, width, 0);
53 bo->total_size = bo->sizes[0] = height * bo->strides[0];
56 fprintf(stderr, "drv: unsupported format %X\n", format);
62 for (plane = 0; plane < bo->num_planes; plane++) {
63 size_t size = bo->sizes[plane];
64 struct drm_exynos_gem_create gem_create;
66 memset(&gem_create, 0, sizeof(gem_create));
67 gem_create.size = size;
68 gem_create.flags = EXYNOS_BO_NONCONTIG;
70 ret = drmIoctl(bo->drv->fd, DRM_IOCTL_EXYNOS_GEM_CREATE, &gem_create);
72 fprintf(stderr, "drv: DRM_IOCTL_EXYNOS_GEM_CREATE failed "
73 "(size=%zu)\n", size);
77 bo->handles[plane].u32 = gem_create.handle;
83 for ( ; plane != 0; plane--) {
84 struct drm_gem_close gem_close;
85 memset(&gem_close, 0, sizeof(gem_close));
86 gem_close.handle = bo->handles[plane - 1].u32;
87 int gem_close_ret = drmIoctl(bo->drv->fd, DRM_IOCTL_GEM_CLOSE,
91 "drv: DRM_IOCTL_GEM_CLOSE failed: %d\n",
100 * Use dumb mapping with exynos even though a GEM buffer is created.
101 * libdrm does the same thing in exynos_drm.c
103 struct backend backend_exynos =
107 .bo_create = exynos_bo_create,
108 .bo_destroy = drv_gem_bo_destroy,
109 .bo_map = drv_dumb_bo_map,