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 int exynos_bo_create(struct bo *bo, uint32_t width, uint32_t height,
21 uint32_t format, uint32_t flags)
25 if (format == DRM_FORMAT_NV12) {
26 uint32_t chroma_height;
27 /* V4L2 s5p-mfc requires width to be 16 byte aligned and height 32. */
28 width = ALIGN(width, 16);
29 height = ALIGN(height, 32);
30 chroma_height = ALIGN(height / 2, 32);
31 bo->strides[0] = bo->strides[1] = width;
32 /* MFC v8+ requires 64 byte padding in the end of luma and chroma buffers. */
33 bo->sizes[0] = bo->strides[0] * height + 64;
34 bo->sizes[1] = bo->strides[1] * chroma_height + 64;
35 bo->offsets[0] = bo->offsets[1] = 0;
36 bo->total_size = bo->sizes[0] + bo->sizes[1];
37 } else if (format == DRM_FORMAT_XRGB8888 || format == DRM_FORMAT_ARGB8888) {
38 bo->strides[0] = drv_stride_from_format(format, width, 0);
39 bo->total_size = bo->sizes[0] = height * bo->strides[0];
42 fprintf(stderr, "drv: unsupported format %X\n", format);
48 for (plane = 0; plane < bo->num_planes; plane++) {
49 size_t size = bo->sizes[plane];
50 struct drm_exynos_gem_create gem_create;
52 memset(&gem_create, 0, sizeof(gem_create));
53 gem_create.size = size;
54 gem_create.flags = EXYNOS_BO_NONCONTIG;
56 ret = drmIoctl(bo->drv->fd, DRM_IOCTL_EXYNOS_GEM_CREATE, &gem_create);
58 fprintf(stderr, "drv: DRM_IOCTL_EXYNOS_GEM_CREATE failed "
59 "(size=%zu)\n", size);
63 bo->handles[plane].u32 = gem_create.handle;
69 for ( ; plane != 0; plane--) {
70 struct drm_gem_close gem_close;
71 memset(&gem_close, 0, sizeof(gem_close));
72 gem_close.handle = bo->handles[plane - 1].u32;
73 int gem_close_ret = drmIoctl(bo->drv->fd, DRM_IOCTL_GEM_CLOSE,
77 "drv: DRM_IOCTL_GEM_CLOSE failed: %d\n",
86 * Use dumb mapping with exynos even though a GEM buffer is created.
87 * libdrm does the same thing in exynos_drm.c
89 const struct backend backend_exynos =
92 .bo_create = exynos_bo_create,
93 .bo_destroy = drv_gem_bo_destroy,
94 .bo_map = drv_dumb_bo_map,
96 {DRM_FORMAT_XRGB8888, DRV_BO_USE_SCANOUT | DRV_BO_USE_CURSOR | DRV_BO_USE_RENDERING},
97 {DRM_FORMAT_XRGB8888, DRV_BO_USE_SCANOUT | DRV_BO_USE_CURSOR | DRV_BO_USE_LINEAR},
98 {DRM_FORMAT_ARGB8888, DRV_BO_USE_SCANOUT | DRV_BO_USE_CURSOR | DRV_BO_USE_RENDERING},
99 {DRM_FORMAT_ARGB8888, DRV_BO_USE_SCANOUT | DRV_BO_USE_CURSOR | DRV_BO_USE_LINEAR},
100 {DRM_FORMAT_NV12, DRV_BO_USE_SCANOUT | DRV_BO_USE_RENDERING},