2 * Copyright 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.
15 #include <exynos_drm.h>
22 static const uint32_t supported_formats[] = { DRM_FORMAT_ARGB8888, DRM_FORMAT_NV12,
23 DRM_FORMAT_XRGB8888 };
25 static int exynos_init(struct driver *drv)
27 return drv_add_linear_combinations(drv, supported_formats, ARRAY_SIZE(supported_formats));
30 static int exynos_bo_create(struct bo *bo, uint32_t width, uint32_t height, uint32_t format,
35 if (format == DRM_FORMAT_NV12) {
36 uint32_t chroma_height;
37 /* V4L2 s5p-mfc requires width to be 16 byte aligned and height 32. */
38 width = ALIGN(width, 16);
39 height = ALIGN(height, 32);
40 chroma_height = ALIGN(height / 2, 32);
41 bo->strides[0] = bo->strides[1] = width;
42 /* MFC v8+ requires 64 byte padding in the end of luma and chroma buffers. */
43 bo->sizes[0] = bo->strides[0] * height + 64;
44 bo->sizes[1] = bo->strides[1] * chroma_height + 64;
45 bo->offsets[0] = bo->offsets[1] = 0;
46 bo->total_size = bo->sizes[0] + bo->sizes[1];
47 } else if (format == DRM_FORMAT_XRGB8888 || format == DRM_FORMAT_ARGB8888) {
48 bo->strides[0] = drv_stride_from_format(format, width, 0);
49 bo->total_size = bo->sizes[0] = height * bo->strides[0];
52 fprintf(stderr, "drv: unsupported format %X\n", format);
58 for (plane = 0; plane < bo->num_planes; plane++) {
59 size_t size = bo->sizes[plane];
60 struct drm_exynos_gem_create gem_create;
62 memset(&gem_create, 0, sizeof(gem_create));
63 gem_create.size = size;
64 gem_create.flags = EXYNOS_BO_NONCONTIG;
66 ret = drmIoctl(bo->drv->fd, DRM_IOCTL_EXYNOS_GEM_CREATE, &gem_create);
68 fprintf(stderr, "drv: DRM_IOCTL_EXYNOS_GEM_CREATE failed (size=%zu)\n",
73 bo->handles[plane].u32 = gem_create.handle;
79 for (; plane != 0; plane--) {
80 struct drm_gem_close gem_close;
81 memset(&gem_close, 0, sizeof(gem_close));
82 gem_close.handle = bo->handles[plane - 1].u32;
83 int gem_close_ret = drmIoctl(bo->drv->fd, DRM_IOCTL_GEM_CLOSE, &gem_close);
85 fprintf(stderr, "drv: DRM_IOCTL_GEM_CLOSE failed: %d\n", gem_close_ret);
93 * Use dumb mapping with exynos even though a GEM buffer is created.
94 * libdrm does the same thing in exynos_drm.c
96 struct backend backend_exynos = {
99 .bo_create = exynos_bo_create,
100 .bo_destroy = drv_gem_bo_destroy,
101 .bo_import = drv_prime_bo_import,
102 .bo_map = drv_dumb_bo_map,