static int
nvkm_ioctl_path(struct nouveau_handle *parent, u32 type, u32 nr,
u32 *path, void *data, u32 size,
u8 owner, u8 *route, u64 *token)
{
struct nouveau_handle *handle = parent;
struct nouveau_namedb *namedb;
struct nouveau_object *object;
int ret;
while ((object = parent->object), nr--) {
nv_ioctl(object, "path 0x%08x\n", path[nr]);
if (!nv_iclass(object, NV_PARENT_CLASS)) {
nv_debug(object, "cannot have children (path)\n");
return -EINVAL;
}
if (!(namedb = (void *)nv_pclass(object, NV_NAMEDB_CLASS)) ||
!(handle = nouveau_namedb_get(namedb, path[nr]))) {
nv_debug(object, "handle 0x%08x not found\n", path[nr]);
return -ENOENT;
}
nouveau_namedb_put(handle);
parent = handle;
}
if (owner != NVIF_IOCTL_V0_OWNER_ANY &&
owner != handle->route) {
nv_ioctl(object, "object route != owner\n");
return -EACCES;
}
*route = handle->route;
*token = handle->token;
if (ret = -EINVAL, type < ARRAY_SIZE(nvkm_ioctl_v0)) {
if (nvkm_ioctl_v0[type].version == 0) {
ret = nvkm_ioctl_v0[type].func(handle, data, size);
}
}
return ret;
}
static int
nv50_software_mthd_dma_vblsem(struct nouveau_object *object, u32 mthd,
void *args, u32 size)
{
struct nv50_software_chan *chan = (void *)nv_engctx(object->parent);
struct nouveau_fifo_chan *fifo = (void *)nv_object(chan)->parent;
struct nouveau_handle *handle;
int ret = -EINVAL;
handle = nouveau_namedb_get(nv_namedb(fifo), *(u32 *)args);
if (!handle)
return -ENOENT;
if (nv_iclass(handle->object, NV_GPUOBJ_CLASS)) {
struct nouveau_gpuobj *gpuobj = nv_gpuobj(handle->object);
chan->vblank.ctxdma = gpuobj->node->offset >> 4;
ret = 0;
}
nouveau_namedb_put(handle);
return ret;
}
