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.
14 #include <rockchip_drm.h>
20 static struct supported_combination combos[11] = {
21 {DRM_FORMAT_ABGR8888, DRM_FORMAT_MOD_NONE,
22 BO_USE_RENDERING | BO_USE_SW_READ_OFTEN | BO_USE_SW_WRITE_OFTEN |
23 BO_USE_SW_READ_RARELY | BO_USE_SW_WRITE_RARELY},
24 {DRM_FORMAT_ARGB8888, DRM_FORMAT_MOD_NONE,
25 BO_USE_CURSOR | BO_USE_LINEAR | BO_USE_SW_READ_OFTEN | BO_USE_SW_WRITE_OFTEN},
26 {DRM_FORMAT_ARGB8888, DRM_FORMAT_MOD_NONE,
27 BO_USE_RENDERING | BO_USE_SW_READ_RARELY | BO_USE_SW_WRITE_RARELY},
28 {DRM_FORMAT_NV12, DRM_FORMAT_MOD_NONE,
29 BO_USE_RENDERING | BO_USE_SW_READ_RARELY | BO_USE_SW_WRITE_RARELY},
30 {DRM_FORMAT_NV12, DRM_FORMAT_MOD_NONE,
31 BO_USE_LINEAR | BO_USE_SW_READ_OFTEN | BO_USE_SW_WRITE_OFTEN},
32 {DRM_FORMAT_RGB565, DRM_FORMAT_MOD_NONE,
33 BO_USE_RENDERING | BO_USE_SW_READ_RARELY | BO_USE_SW_WRITE_RARELY},
34 {DRM_FORMAT_XBGR8888, DRM_FORMAT_MOD_NONE,
35 BO_USE_RENDERING | BO_USE_SW_READ_OFTEN | BO_USE_SW_WRITE_OFTEN |
36 BO_USE_SW_READ_RARELY | BO_USE_SW_WRITE_RARELY},
37 {DRM_FORMAT_XBGR8888, DRM_FORMAT_MOD_NONE,
38 BO_USE_LINEAR | BO_USE_SW_READ_OFTEN | BO_USE_SW_WRITE_OFTEN},
39 {DRM_FORMAT_XRGB8888, DRM_FORMAT_MOD_NONE,
40 BO_USE_CURSOR | BO_USE_LINEAR | BO_USE_SW_READ_OFTEN | BO_USE_SW_WRITE_OFTEN},
41 {DRM_FORMAT_XRGB8888, DRM_FORMAT_MOD_NONE,
42 BO_USE_RENDERING | BO_USE_SW_READ_RARELY | BO_USE_SW_WRITE_RARELY},
43 {DRM_FORMAT_YVU420, DRM_FORMAT_MOD_NONE,
44 BO_USE_RENDERING | BO_USE_SW_READ_RARELY | BO_USE_SW_WRITE_RARELY},
47 static int rockchip_init(struct driver *drv)
49 drv_insert_combinations(drv, combos, ARRAY_SIZE(combos));
50 return drv_add_kms_flags(drv);
53 static int rockchip_bo_create(struct bo *bo, uint32_t width, uint32_t height,
54 uint32_t format, uint32_t flags)
58 struct drm_rockchip_gem_create gem_create;
60 if (format == DRM_FORMAT_NV12) {
61 uint32_t w_mbs = DIV_ROUND_UP(ALIGN(width, 16), 16);
62 uint32_t h_mbs = DIV_ROUND_UP(ALIGN(width, 16), 16);
64 uint32_t aligned_width = w_mbs * 16;
65 uint32_t aligned_height = DIV_ROUND_UP(h_mbs * 16 * 3, 2);
67 drv_bo_from_format(bo, aligned_width, height, format);
68 bo->total_size = bo->strides[0] * aligned_height
69 + w_mbs * h_mbs * 128;
71 drv_bo_from_format(bo, width, height, format);
74 memset(&gem_create, 0, sizeof(gem_create));
75 gem_create.size = bo->total_size;
77 ret = drmIoctl(bo->drv->fd, DRM_IOCTL_ROCKCHIP_GEM_CREATE,
81 fprintf(stderr, "drv: DRM_IOCTL_ROCKCHIP_GEM_CREATE failed "
82 "(size=%llu)\n", gem_create.size);
86 for (plane = 0; plane < bo->num_planes; plane++)
87 bo->handles[plane].u32 = gem_create.handle;
92 static void *rockchip_bo_map(struct bo *bo, struct map_info *data, size_t plane)
95 struct drm_rockchip_gem_map_off gem_map;
97 memset(&gem_map, 0, sizeof(gem_map));
98 gem_map.handle = bo->handles[0].u32;
100 ret = drmIoctl(bo->drv->fd, DRM_IOCTL_ROCKCHIP_GEM_MAP_OFFSET,
104 "drv: DRM_IOCTL_ROCKCHIP_GEM_MAP_OFFSET failed\n");
108 data->length = bo->total_size;
110 return mmap(0, bo->total_size, PROT_READ | PROT_WRITE, MAP_SHARED,
111 bo->drv->fd, gem_map.offset);
114 static uint32_t rockchip_resolve_format(uint32_t format)
117 case DRM_FORMAT_FLEX_IMPLEMENTATION_DEFINED:
118 /*HACK: See b/28671744 */
119 return DRM_FORMAT_XBGR8888;
120 case DRM_FORMAT_FLEX_YCbCr_420_888:
121 return DRM_FORMAT_NV12;
127 struct backend backend_rockchip =
130 .init = rockchip_init,
131 .bo_create = rockchip_bo_create,
132 .bo_destroy = drv_gem_bo_destroy,
133 .bo_map = rockchip_bo_map,
134 .resolve_format = rockchip_resolve_format,