diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/core/namedb.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/core/namedb.c | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/core/namedb.c b/drivers/gpu/drm/nouveau/nvkm/core/namedb.c new file mode 100644 index 000000000000..6400767c5dba --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/core/namedb.c @@ -0,0 +1,199 @@ +/* + * Copyright 2012 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: Ben Skeggs + */ +#include <core/namedb.h> +#include <core/gpuobj.h> +#include <core/handle.h> + +static struct nvkm_handle * +nvkm_namedb_lookup(struct nvkm_namedb *namedb, u32 name) +{ + struct nvkm_handle *handle; + + list_for_each_entry(handle, &namedb->list, node) { + if (handle->name == name) + return handle; + } + + return NULL; +} + +static struct nvkm_handle * +nvkm_namedb_lookup_class(struct nvkm_namedb *namedb, u16 oclass) +{ + struct nvkm_handle *handle; + + list_for_each_entry(handle, &namedb->list, node) { + if (nv_mclass(handle->object) == oclass) + return handle; + } + + return NULL; +} + +static struct nvkm_handle * +nvkm_namedb_lookup_vinst(struct nvkm_namedb *namedb, u64 vinst) +{ + struct nvkm_handle *handle; + + list_for_each_entry(handle, &namedb->list, node) { + if (nv_iclass(handle->object, NV_GPUOBJ_CLASS)) { + if (nv_gpuobj(handle->object)->addr == vinst) + return handle; + } + } + + return NULL; +} + +static struct nvkm_handle * +nvkm_namedb_lookup_cinst(struct nvkm_namedb *namedb, u32 cinst) +{ + struct nvkm_handle *handle; + + list_for_each_entry(handle, &namedb->list, node) { + if (nv_iclass(handle->object, NV_GPUOBJ_CLASS)) { + if (nv_gpuobj(handle->object)->node && + nv_gpuobj(handle->object)->node->offset == cinst) + return handle; + } + } + + return NULL; +} + +int +nvkm_namedb_insert(struct nvkm_namedb *namedb, u32 name, + struct nvkm_object *object, + struct nvkm_handle *handle) +{ + int ret = -EEXIST; + write_lock_irq(&namedb->lock); + if (!nvkm_namedb_lookup(namedb, name)) { + nvkm_object_ref(object, &handle->object); + handle->namedb = namedb; + list_add(&handle->node, &namedb->list); + ret = 0; + } + write_unlock_irq(&namedb->lock); + return ret; +} + +void +nvkm_namedb_remove(struct nvkm_handle *handle) +{ + struct nvkm_namedb *namedb = handle->namedb; + struct nvkm_object *object = handle->object; + write_lock_irq(&namedb->lock); + list_del(&handle->node); + write_unlock_irq(&namedb->lock); + nvkm_object_ref(NULL, &object); +} + +struct nvkm_handle * +nvkm_namedb_get(struct nvkm_namedb *namedb, u32 name) +{ + struct nvkm_handle *handle; + read_lock(&namedb->lock); + handle = nvkm_namedb_lookup(namedb, name); + if (handle == NULL) + read_unlock(&namedb->lock); + return handle; +} + +struct nvkm_handle * +nvkm_namedb_get_class(struct nvkm_namedb *namedb, u16 oclass) +{ + struct nvkm_handle *handle; + read_lock(&namedb->lock); + handle = nvkm_namedb_lookup_class(namedb, oclass); + if (handle == NULL) + read_unlock(&namedb->lock); + return handle; +} + +struct nvkm_handle * +nvkm_namedb_get_vinst(struct nvkm_namedb *namedb, u64 vinst) +{ + struct nvkm_handle *handle; + read_lock(&namedb->lock); + handle = nvkm_namedb_lookup_vinst(namedb, vinst); + if (handle == NULL) + read_unlock(&namedb->lock); + return handle; +} + +struct nvkm_handle * +nvkm_namedb_get_cinst(struct nvkm_namedb *namedb, u32 cinst) +{ + struct nvkm_handle *handle; + read_lock(&namedb->lock); + handle = nvkm_namedb_lookup_cinst(namedb, cinst); + if (handle == NULL) + read_unlock(&namedb->lock); + return handle; +} + +void +nvkm_namedb_put(struct nvkm_handle *handle) +{ + if (handle) + read_unlock(&handle->namedb->lock); +} + +int +nvkm_namedb_create_(struct nvkm_object *parent, struct nvkm_object *engine, + struct nvkm_oclass *oclass, u32 pclass, + struct nvkm_oclass *sclass, u64 engcls, + int length, void **pobject) +{ + struct nvkm_namedb *namedb; + int ret; + + ret = nvkm_parent_create_(parent, engine, oclass, pclass | + NV_NAMEDB_CLASS, sclass, engcls, + length, pobject); + namedb = *pobject; + if (ret) + return ret; + + rwlock_init(&namedb->lock); + INIT_LIST_HEAD(&namedb->list); + return 0; +} + +int +_nvkm_namedb_ctor(struct nvkm_object *parent, struct nvkm_object *engine, + struct nvkm_oclass *oclass, void *data, u32 size, + struct nvkm_object **pobject) +{ + struct nvkm_namedb *object; + int ret; + + ret = nvkm_namedb_create(parent, engine, oclass, 0, NULL, 0, &object); + *pobject = nv_object(object); + if (ret) + return ret; + + return 0; +} |