/* Migrate a linear buffer (vertex, index, constants) USER -> GART -> VRAM. */
boolean
nouveau_buffer_migrate(struct nouveau_context *nv,
struct nv04_resource *buf, const unsigned new_domain)
{
struct nouveau_screen *screen = nv->screen;
struct nouveau_bo *bo;
const unsigned old_domain = buf->domain;
unsigned size = buf->base.width0;
unsigned offset;
int ret;
assert(new_domain != old_domain);
if (new_domain == NOUVEAU_BO_GART && old_domain == 0) {
if (!nouveau_buffer_allocate(screen, buf, new_domain))
return FALSE;
ret = nouveau_bo_map_range(buf->bo, buf->offset, size, NOUVEAU_BO_WR |
NOUVEAU_BO_NOSYNC);
if (ret)
return ret;
memcpy(buf->bo->map, buf->data, size);
nouveau_bo_unmap(buf->bo);
FREE(buf->data);
} else
if (old_domain != 0 && new_domain != 0) {
struct nouveau_mm_allocation *mm = buf->mm;
if (new_domain == NOUVEAU_BO_VRAM) {
/* keep a system memory copy of our data in case we hit a fallback */
if (!nouveau_buffer_data_fetch(buf, buf->bo, buf->offset, size))
return FALSE;
if (nouveau_mesa_debug)
debug_printf("migrating %u KiB to VRAM\n", size / 1024);
}
offset = buf->offset;
bo = buf->bo;
buf->bo = NULL;
buf->mm = NULL;
nouveau_buffer_allocate(screen, buf, new_domain);
nv->copy_data(nv, buf->bo, buf->offset, new_domain,
bo, offset, old_domain, buf->base.width0);
nouveau_bo_ref(NULL, &bo);
if (mm)
release_allocation(&mm, screen->fence.current);
} else
if (new_domain == NOUVEAU_BO_VRAM && old_domain == 0) {
if (!nouveau_buffer_allocate(screen, buf, NOUVEAU_BO_VRAM))
return FALSE;
if (!nouveau_buffer_upload(nv, buf, 0, buf->base.width0))
return FALSE;
} else
return FALSE;
assert(buf->domain == new_domain);
return TRUE;
}
static void
nouveau_buffer_transfer_destroy(struct pipe_context *pipe,
struct pipe_transfer *transfer)
{
struct nv04_resource *buf = nv04_resource(transfer->resource);
struct nouveau_transfer *xfr = nouveau_transfer(transfer);
struct nouveau_context *nv = nouveau_context(pipe);
if (xfr->base.usage & PIPE_TRANSFER_WRITE) {
if (buf->domain == NOUVEAU_BO_VRAM) {
nouveau_buffer_upload(nv, buf, transfer->box.x, transfer->box.width);
}
if (buf->domain != 0 && (buf->base.bind & (PIPE_BIND_VERTEX_BUFFER |
PIPE_BIND_INDEX_BUFFER)))
nouveau_context(pipe)->vbo_dirty = TRUE;
}
FREE(xfr);
}