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.
11 #define MESA_LLVMPIPE_TILE_ORDER 6
12 #define MESA_LLVMPIPE_TILE_SIZE (1 << MESA_LLVMPIPE_TILE_ORDER)
14 static const uint32_t render_target_formats[] = { DRM_FORMAT_ABGR8888, DRM_FORMAT_ARGB8888,
15 DRM_FORMAT_RGB565, DRM_FORMAT_XBGR8888,
16 DRM_FORMAT_XRGB8888 };
18 static const uint32_t texture_source_formats[] = { DRM_FORMAT_R8, DRM_FORMAT_YVU420,
19 DRM_FORMAT_YVU420_ANDROID };
21 static int virtio_gpu_init(struct driver *drv)
24 ret = drv_add_combinations(drv, render_target_formats, ARRAY_SIZE(render_target_formats),
25 &LINEAR_METADATA, BO_USE_RENDER_MASK);
29 ret = drv_add_combinations(drv, texture_source_formats, ARRAY_SIZE(texture_source_formats),
30 &LINEAR_METADATA, BO_USE_TEXTURE_MASK);
34 return drv_modify_linear_combinations(drv);
37 static int virtio_gpu_bo_create(struct bo *bo, uint32_t width, uint32_t height, uint32_t format,
40 int ret = drv_dumb_bo_create(bo, ALIGN(width, MESA_LLVMPIPE_TILE_SIZE),
41 ALIGN(height, MESA_LLVMPIPE_TILE_SIZE), format, flags);
45 static uint32_t virtio_gpu_resolve_format(uint32_t format)
48 case DRM_FORMAT_FLEX_IMPLEMENTATION_DEFINED:
49 /*HACK: See b/28671744 */
50 return DRM_FORMAT_XBGR8888;
51 case DRM_FORMAT_FLEX_YCbCr_420_888:
52 return DRM_FORMAT_YVU420_ANDROID;
58 struct backend backend_virtio_gpu = {
60 .init = virtio_gpu_init,
61 .bo_create = virtio_gpu_bo_create,
62 .bo_destroy = drv_dumb_bo_destroy,
63 .bo_import = drv_prime_bo_import,
64 .bo_map = drv_dumb_bo_map,
65 .resolve_format = virtio_gpu_resolve_format,