int
nvif_object_ioctl(struct nvif_object *object, void *data, u32 size, void **hack)
{
- struct nvif_client *client = nvif_client(object);
+ struct nvif_client *client = object->client;
union {
struct nvif_ioctl_v0 v0;
} *args = data;
if (size >= sizeof(*args) && args->v0.version == 0) {
+ if (object != &client->object)
+ args->v0.object = nvif_handle(object);
+ else
+ args->v0.object = 0;
args->v0.owner = NVIF_IOCTL_V0_OWNER_ANY;
- args->v0.path_nr = 0;
- while (args->v0.path_nr < ARRAY_SIZE(args->v0.path)) {
- args->v0.path[args->v0.path_nr++] = object->handle;
- if (object->parent == object)
- break;
- object = object->parent;
- }
} else
return -ENOSYS;
- return client->driver->ioctl(client->base.priv, client->super, data, size, hack);
+ return client->driver->ioctl(client->object.priv, client->super,
+ data, size, hack);
+}
+
+void
+nvif_object_sclass_put(struct nvif_sclass **psclass)
+{
+ kfree(*psclass);
+ *psclass = NULL;
}
int
-nvif_object_sclass(struct nvif_object *object, u32 *oclass, int count)
+nvif_object_sclass_get(struct nvif_object *object, struct nvif_sclass **psclass)
{
struct {
struct nvif_ioctl_v0 ioctl;
struct nvif_ioctl_sclass_v0 sclass;
- } *args;
- u32 size = count * sizeof(args->sclass.oclass[0]);
- int ret;
+ } *args = NULL;
+ int ret, cnt = 0, i;
+ u32 size;
- if (!(args = kmalloc(sizeof(*args) + size, GFP_KERNEL)))
- return -ENOMEM;
- args->ioctl.version = 0;
- args->ioctl.type = NVIF_IOCTL_V0_SCLASS;
- args->sclass.version = 0;
- args->sclass.count = count;
+ while (1) {
+ size = sizeof(*args) + cnt * sizeof(args->sclass.oclass[0]);
+ if (!(args = kmalloc(size, GFP_KERNEL)))
+ return -ENOMEM;
+ args->ioctl.version = 0;
+ args->ioctl.type = NVIF_IOCTL_V0_SCLASS;
+ args->sclass.version = 0;
+ args->sclass.count = cnt;
+
+ ret = nvif_object_ioctl(object, args, size, NULL);
+ if (ret == 0 && args->sclass.count <= cnt)
+ break;
+ cnt = args->sclass.count;
+ kfree(args);
+ if (ret != 0)
+ return ret;
+ }
+
+ *psclass = kzalloc(sizeof(**psclass) * args->sclass.count, GFP_KERNEL);
+ if (*psclass) {
+ for (i = 0; i < args->sclass.count; i++) {
+ (*psclass)[i].oclass = args->sclass.oclass[i].oclass;
+ (*psclass)[i].minver = args->sclass.oclass[i].minver;
+ (*psclass)[i].maxver = args->sclass.oclass[i].maxver;
+ }
+ ret = args->sclass.count;
+ } else {
+ ret = -ENOMEM;
+ }
- memcpy(args->sclass.oclass, oclass, size);
- ret = nvif_object_ioctl(object, args, sizeof(*args) + size, NULL);
- ret = ret ? ret : args->sclass.count;
- memcpy(oclass, args->sclass.oclass, size);
kfree(args);
return ret;
}
nvif_object_unmap(struct nvif_object *object)
{
if (object->map.size) {
- struct nvif_client *client = nvif_client(object);
+ struct nvif_client *client = object->client;
struct {
struct nvif_ioctl_v0 ioctl;
struct nvif_ioctl_unmap unmap;
int
nvif_object_map(struct nvif_object *object)
{
- struct nvif_client *client = nvif_client(object);
+ struct nvif_client *client = object->client;
struct {
struct nvif_ioctl_v0 ioctl;
struct nvif_ioctl_map_v0 map;
return ret;
}
-struct ctor {
- struct nvif_ioctl_v0 ioctl;
- struct nvif_ioctl_new_v0 new;
-};
-
void
nvif_object_fini(struct nvif_object *object)
{
- struct ctor *ctor = container_of(object->data, typeof(*ctor), new.data);
- if (object->parent) {
- struct {
- struct nvif_ioctl_v0 ioctl;
- struct nvif_ioctl_del del;
- } args = {
- .ioctl.type = NVIF_IOCTL_V0_DEL,
- };
+ struct {
+ struct nvif_ioctl_v0 ioctl;
+ struct nvif_ioctl_del del;
+ } args = {
+ .ioctl.type = NVIF_IOCTL_V0_DEL,
+ };
- nvif_object_unmap(object);
- nvif_object_ioctl(object, &args, sizeof(args), NULL);
- if (object->data) {
- object->size = 0;
- object->data = NULL;
- kfree(ctor);
- }
- nvif_object_ref(NULL, &object->parent);
- }
+ if (!object->client)
+ return;
+
+ nvif_object_unmap(object);
+ nvif_object_ioctl(object, &args, sizeof(args), NULL);
+ object->client = NULL;
}
int
-nvif_object_init(struct nvif_object *parent, void (*dtor)(struct nvif_object *),
- u32 handle, u32 oclass, void *data, u32 size,
- struct nvif_object *object)
+nvif_object_init(struct nvif_object *parent, u32 handle, s32 oclass,
+ void *data, u32 size, struct nvif_object *object)
{
- struct ctor *ctor;
+ struct {
+ struct nvif_ioctl_v0 ioctl;
+ struct nvif_ioctl_new_v0 new;
+ } *args;
int ret = 0;
- object->parent = NULL;
- object->object = object;
- nvif_object_ref(parent, &object->parent);
- kref_init(&object->refcount);
+ object->client = NULL;
object->handle = handle;
object->oclass = oclass;
- object->data = NULL;
- object->size = 0;
- object->dtor = dtor;
object->map.ptr = NULL;
object->map.size = 0;
- if (object->parent) {
- if (!(ctor = kmalloc(sizeof(*ctor) + size, GFP_KERNEL))) {
+ if (parent) {
+ if (!(args = kmalloc(sizeof(*args) + size, GFP_KERNEL))) {
nvif_object_fini(object);
return -ENOMEM;
}
- object->data = ctor->new.data;
- object->size = size;
- memcpy(object->data, data, size);
- ctor->ioctl.version = 0;
- ctor->ioctl.type = NVIF_IOCTL_V0_NEW;
- ctor->new.version = 0;
- ctor->new.route = NVIF_IOCTL_V0_ROUTE_NVIF;
- ctor->new.token = (unsigned long)(void *)object;
- ctor->new.handle = handle;
- ctor->new.oclass = oclass;
+ args->ioctl.version = 0;
+ args->ioctl.type = NVIF_IOCTL_V0_NEW;
+ args->new.version = 0;
+ args->new.route = parent->client->route;
+ args->new.token = nvif_handle(object);
+ args->new.object = nvif_handle(object);
+ args->new.handle = handle;
+ args->new.oclass = oclass;
- ret = nvif_object_ioctl(parent, ctor, sizeof(*ctor) +
- object->size, &object->priv);
+ memcpy(args->new.data, data, size);
+ ret = nvif_object_ioctl(parent, args, sizeof(*args) + size,
+ &object->priv);
+ memcpy(data, args->new.data, size);
+ kfree(args);
+ if (ret == 0)
+ object->client = parent->client;
}
if (ret)
nvif_object_fini(object);
return ret;
}
-
-static void
-nvif_object_del(struct nvif_object *object)
-{
- nvif_object_fini(object);
- kfree(object);
-}
-
-int
-nvif_object_new(struct nvif_object *parent, u32 handle, u32 oclass,
- void *data, u32 size, struct nvif_object **pobject)
-{
- struct nvif_object *object = kzalloc(sizeof(*object), GFP_KERNEL);
- if (object) {
- int ret = nvif_object_init(parent, nvif_object_del, handle,
- oclass, data, size, object);
- if (ret) {
- kfree(object);
- object = NULL;
- }
- *pobject = object;
- return ret;
- }
- return -ENOMEM;
-}
-
-static void
-nvif_object_put(struct kref *kref)
-{
- struct nvif_object *object =
- container_of(kref, typeof(*object), refcount);
- object->dtor(object);
-}
-
-void
-nvif_object_ref(struct nvif_object *object, struct nvif_object **pobject)
-{
- if (object)
- kref_get(&object->refcount);
- if (*pobject)
- kref_put(&(*pobject)->refcount, nvif_object_put);
- *pobject = object;
-}
Code Review / kvmfornfv.git / blobdiff