- pipe_reference_init(&pb->reference, 1);
- pb->screen = pscreen;
- pb->alignment = alignment;
- pb->usage = usage;
- pb->size = size;
- *(struct nouveau_bo **)(pb + 1) = bo;
- return pb;
-}
-
-static struct pipe_buffer *
-nouveau_screen_bo_new(struct pipe_screen *pscreen, unsigned alignment,
- unsigned usage, unsigned size)
-{
- struct nouveau_device *dev = nouveau_screen(pscreen)->device;
- struct nouveau_bo *bo = NULL;
- uint32_t flags = NOUVEAU_BO_MAP, tile_mode = 0, tile_flags = 0;
- int ret;
-
- if (usage & NOUVEAU_BUFFER_USAGE_TRANSFER)
- flags |= NOUVEAU_BO_GART;
- else
- if (usage & PIPE_BUFFER_USAGE_VERTEX) {
- if (pscreen->get_param(pscreen, NOUVEAU_CAP_HW_VTXBUF))
- flags |= NOUVEAU_BO_GART;
- } else
- if (usage & PIPE_BUFFER_USAGE_INDEX) {
- if (pscreen->get_param(pscreen, NOUVEAU_CAP_HW_IDXBUF))
- flags |= NOUVEAU_BO_GART;
- }
-
- if (usage & PIPE_BUFFER_USAGE_PIXEL) {
- if (usage & NOUVEAU_BUFFER_USAGE_TEXTURE)
- flags |= NOUVEAU_BO_GART;
- if (!(usage & PIPE_BUFFER_USAGE_CPU_READ_WRITE))
- flags |= NOUVEAU_BO_VRAM;
-
- if (dev->chipset == 0x50 || dev->chipset >= 0x80) {
- if (usage & NOUVEAU_BUFFER_USAGE_ZETA)
- tile_flags = 0x2800;
- else
- tile_flags = 0x7000;
- }
- }
-
- ret = nouveau_bo_new_tile(dev, flags, alignment, size,
- tile_mode, tile_flags, &bo);
- if (ret)
- return NULL;
-
- return nouveau_screen_bo_skel(pscreen, bo, alignment, usage, size);
-}
-
-static struct pipe_buffer *
-nouveau_screen_bo_user(struct pipe_screen *pscreen, void *ptr, unsigned bytes)
-{
- struct nouveau_device *dev = nouveau_screen(pscreen)->device;
- struct nouveau_bo *bo = NULL;
- int ret;
-
- ret = nouveau_bo_user(dev, ptr, bytes, &bo);
- if (ret)
- return NULL;
-
- return nouveau_screen_bo_skel(pscreen, bo, 0, 0, bytes);
-}
-
-static inline uint32_t
-nouveau_screen_map_flags(unsigned pipe)
-{
- uint32_t flags = 0;
-
- if (pipe & PIPE_BUFFER_USAGE_CPU_READ)
- flags |= NOUVEAU_BO_RD;
- if (pipe & PIPE_BUFFER_USAGE_CPU_WRITE)
- flags |= NOUVEAU_BO_WR;
- if (pipe & PIPE_BUFFER_USAGE_DISCARD)
- flags |= NOUVEAU_BO_INVAL;
- if (pipe & PIPE_BUFFER_USAGE_DONTBLOCK)
- flags |= NOUVEAU_BO_NOWAIT;
- else
- if (pipe & 0 /*PIPE_BUFFER_USAGE_UNSYNCHRONIZED*/)
- flags |= NOUVEAU_BO_NOSYNC;
-
- return flags;
-}
-
-static void *
-nouveau_screen_bo_map(struct pipe_screen *pscreen, struct pipe_buffer *pb,
- unsigned usage)
-{
- struct nouveau_bo *bo = nouveau_bo(pb);
- struct nouveau_screen *nscreen = nouveau_screen(pscreen);
- int ret;
-
- if (nscreen->pre_pipebuffer_map_callback) {
- ret = nscreen->pre_pipebuffer_map_callback(pscreen, pb, usage);
- if (ret) {
- debug_printf("pre_pipebuffer_map_callback failed %d\n",
- ret);
- return NULL;
- }
- }
-
- ret = nouveau_bo_map(bo, nouveau_screen_map_flags(usage));
- if (ret) {
- debug_printf("map failed: %d\n", ret);
- return NULL;
- }
-
- return bo->map;
-}
-
-static void *
-nouveau_screen_bo_map_range(struct pipe_screen *pscreen, struct pipe_buffer *pb,
- unsigned offset, unsigned length, unsigned usage)
-{
- struct nouveau_bo *bo = nouveau_bo(pb);
- struct nouveau_screen *nscreen = nouveau_screen(pscreen);
- uint32_t flags = nouveau_screen_map_flags(usage);
- int ret;
-
- if (nscreen->pre_pipebuffer_map_callback) {
- ret = nscreen->pre_pipebuffer_map_callback(pscreen, pb, usage);
- if (ret) {
- debug_printf("pre_pipebuffer_map_callback failed %d\n",
- ret);
- return NULL;
- }
- }
-
- ret = nouveau_bo_map_range(bo, offset, length, flags);
- if (ret) {
- nouveau_bo_unmap(bo);
- if (!(flags & NOUVEAU_BO_NOWAIT) || ret != -EBUSY)
- debug_printf("map_range failed: %d\n", ret);
- return NULL;
- }
-
- return (char *)bo->map - offset; /* why gallium? why? */
-}
-
-static void
-nouveau_screen_bo_map_flush(struct pipe_screen *pscreen, struct pipe_buffer *pb,
- unsigned offset, unsigned length)
-{
- struct nouveau_bo *bo = nouveau_bo(pb);
-
- nouveau_bo_map_flush(bo, offset, length);
-}
-
-static void
-nouveau_screen_bo_unmap(struct pipe_screen *pscreen, struct pipe_buffer *pb)
-{
- struct nouveau_bo *bo = nouveau_bo(pb);
-
- nouveau_bo_unmap(bo);
-}
-
-static void
-nouveau_screen_bo_del(struct pipe_buffer *pb)
-{
- struct nouveau_bo *bo = nouveau_bo(pb);
-
- nouveau_bo_ref(NULL, &bo);
- FREE(pb);