| /* |
| * 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/object.h> |
| #include <core/namedb.h> |
| #include <core/handle.h> |
| #include <core/gpuobj.h> |
| |
| static struct nouveau_handle * |
| nouveau_namedb_lookup(struct nouveau_namedb *namedb, u32 name) |
| { |
| struct nouveau_handle *handle; |
| |
| list_for_each_entry(handle, &namedb->list, node) { |
| if (handle->name == name) |
| return handle; |
| } |
| |
| return NULL; |
| } |
| |
| static struct nouveau_handle * |
| nouveau_namedb_lookup_class(struct nouveau_namedb *namedb, u16 oclass) |
| { |
| struct nouveau_handle *handle; |
| |
| list_for_each_entry(handle, &namedb->list, node) { |
| if (nv_mclass(handle->object) == oclass) |
| return handle; |
| } |
| |
| return NULL; |
| } |
| |
| static struct nouveau_handle * |
| nouveau_namedb_lookup_vinst(struct nouveau_namedb *namedb, u64 vinst) |
| { |
| struct nouveau_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 nouveau_handle * |
| nouveau_namedb_lookup_cinst(struct nouveau_namedb *namedb, u32 cinst) |
| { |
| struct nouveau_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 |
| nouveau_namedb_insert(struct nouveau_namedb *namedb, u32 name, |
| struct nouveau_object *object, |
| struct nouveau_handle *handle) |
| { |
| int ret = -EEXIST; |
| write_lock_irq(&namedb->lock); |
| if (!nouveau_namedb_lookup(namedb, name)) { |
| nouveau_object_ref(object, &handle->object); |
| handle->namedb = namedb; |
| list_add(&handle->node, &namedb->list); |
| ret = 0; |
| } |
| write_unlock_irq(&namedb->lock); |
| return ret; |
| } |
| |
| void |
| nouveau_namedb_remove(struct nouveau_handle *handle) |
| { |
| struct nouveau_namedb *namedb = handle->namedb; |
| struct nouveau_object *object = handle->object; |
| write_lock_irq(&namedb->lock); |
| list_del(&handle->node); |
| write_unlock_irq(&namedb->lock); |
| nouveau_object_ref(NULL, &object); |
| } |
| |
| struct nouveau_handle * |
| nouveau_namedb_get(struct nouveau_namedb *namedb, u32 name) |
| { |
| struct nouveau_handle *handle; |
| read_lock(&namedb->lock); |
| handle = nouveau_namedb_lookup(namedb, name); |
| if (handle == NULL) |
| read_unlock(&namedb->lock); |
| return handle; |
| } |
| |
| struct nouveau_handle * |
| nouveau_namedb_get_class(struct nouveau_namedb *namedb, u16 oclass) |
| { |
| struct nouveau_handle *handle; |
| read_lock(&namedb->lock); |
| handle = nouveau_namedb_lookup_class(namedb, oclass); |
| if (handle == NULL) |
| read_unlock(&namedb->lock); |
| return handle; |
| } |
| |
| struct nouveau_handle * |
| nouveau_namedb_get_vinst(struct nouveau_namedb *namedb, u64 vinst) |
| { |
| struct nouveau_handle *handle; |
| read_lock(&namedb->lock); |
| handle = nouveau_namedb_lookup_vinst(namedb, vinst); |
| if (handle == NULL) |
| read_unlock(&namedb->lock); |
| return handle; |
| } |
| |
| struct nouveau_handle * |
| nouveau_namedb_get_cinst(struct nouveau_namedb *namedb, u32 cinst) |
| { |
| struct nouveau_handle *handle; |
| read_lock(&namedb->lock); |
| handle = nouveau_namedb_lookup_cinst(namedb, cinst); |
| if (handle == NULL) |
| read_unlock(&namedb->lock); |
| return handle; |
| } |
| |
| void |
| nouveau_namedb_put(struct nouveau_handle *handle) |
| { |
| if (handle) |
| read_unlock(&handle->namedb->lock); |
| } |
| |
| int |
| nouveau_namedb_create_(struct nouveau_object *parent, |
| struct nouveau_object *engine, |
| struct nouveau_oclass *oclass, u32 pclass, |
| struct nouveau_oclass *sclass, u32 engcls, |
| int length, void **pobject) |
| { |
| struct nouveau_namedb *namedb; |
| int ret; |
| |
| ret = nouveau_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 |
| _nouveau_namedb_ctor(struct nouveau_object *parent, |
| struct nouveau_object *engine, |
| struct nouveau_oclass *oclass, void *data, u32 size, |
| struct nouveau_object **pobject) |
| { |
| struct nouveau_namedb *object; |
| int ret; |
| |
| ret = nouveau_namedb_create(parent, engine, oclass, 0, NULL, 0, &object); |
| *pobject = nv_object(object); |
| if (ret) |
| return ret; |
| |
| return 0; |
| } |