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 static struct supported_combination combos[2] = {
12 {DRM_FORMAT_ABGR8888, DRM_FORMAT_MOD_NONE,
13 DRV_BO_USE_RENDERING | DRV_BO_USE_SW_READ_OFTEN | DRV_BO_USE_SW_WRITE_OFTEN},
14 {DRM_FORMAT_YVU420, DRM_FORMAT_MOD_NONE,
15 DRV_BO_USE_RENDERING | DRV_BO_USE_SW_READ_RARELY | DRV_BO_USE_SW_WRITE_RARELY},
18 static int vgem_init(struct driver *drv)
20 drv_insert_combinations(drv, combos, ARRAY_SIZE(combos));
21 return drv_add_kms_flags(drv);
24 static uint32_t vgem_resolve_format(uint32_t format)
27 case DRM_FORMAT_FLEX_IMPLEMENTATION_DEFINED:
28 /*HACK: See b/28671744 */
29 return DRM_FORMAT_XBGR8888;
30 case DRM_FORMAT_FLEX_YCbCr_420_888:
31 return DRM_FORMAT_YVU420;
37 struct backend backend_vgem =
41 .bo_create = drv_dumb_bo_create,
42 .bo_destroy = drv_dumb_bo_destroy,
43 .bo_map = drv_dumb_bo_map,
44 .resolve_format = vgem_resolve_format,