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/*
* 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, u64 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;
}
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