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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 <subdev/instmem.h>
int
nouveau_instobj_create_(struct nouveau_object *parent,
struct nouveau_object *engine,
struct nouveau_oclass *oclass,
int length, void **pobject)
{
struct nouveau_instmem *imem = (void *)engine;
struct nouveau_instobj *iobj;
int ret;
ret = nouveau_object_create_(parent, engine, oclass, NV_MEMOBJ_CLASS,
length, pobject);
iobj = *pobject;
if (ret)
return ret;
mutex_lock(&imem->base.mutex);
list_add(&iobj->head, &imem->list);
mutex_unlock(&imem->base.mutex);
return 0;
}
void
nouveau_instobj_destroy(struct nouveau_instobj *iobj)
{
struct nouveau_subdev *subdev = nv_subdev(iobj->base.engine);
mutex_lock(&subdev->mutex);
list_del(&iobj->head);
mutex_unlock(&subdev->mutex);
return nouveau_object_destroy(&iobj->base);
}
void
_nouveau_instobj_dtor(struct nouveau_object *object)
{
struct nouveau_instobj *iobj = (void *)object;
return nouveau_instobj_destroy(iobj);
}
int
nouveau_instmem_create_(struct nouveau_object *parent,
struct nouveau_object *engine,
struct nouveau_oclass *oclass,
int length, void **pobject)
{
struct nouveau_instmem *imem;
int ret;
ret = nouveau_subdev_create_(parent, engine, oclass, 0,
"INSTMEM", "instmem", length, pobject);
imem = *pobject;
if (ret)
return ret;
INIT_LIST_HEAD(&imem->list);
return 0;
}
int
nouveau_instmem_init(struct nouveau_instmem *imem)
{
struct nouveau_instobj *iobj;
int ret, i;
ret = nouveau_subdev_init(&imem->base);
if (ret)
return ret;
mutex_lock(&imem->base.mutex);
list_for_each_entry(iobj, &imem->list, head) {
if (iobj->suspend) {
for (i = 0; i < iobj->size; i += 4)
nv_wo32(iobj, i, iobj->suspend[i / 4]);
vfree(iobj->suspend);
iobj->suspend = NULL;
}
}
mutex_unlock(&imem->base.mutex);
return 0;
}
int
nouveau_instmem_fini(struct nouveau_instmem *imem, bool suspend)
{
struct nouveau_instobj *iobj;
int i, ret = 0;
if (suspend) {
mutex_lock(&imem->base.mutex);
list_for_each_entry(iobj, &imem->list, head) {
iobj->suspend = vmalloc(iobj->size);
if (!iobj->suspend) {
ret = -ENOMEM;
break;
}
for (i = 0; i < iobj->size; i += 4)
iobj->suspend[i / 4] = nv_ro32(iobj, i);
}
mutex_unlock(&imem->base.mutex);
if (ret)
return ret;
}
return nouveau_subdev_fini(&imem->base, suspend);
}
int
_nouveau_instmem_init(struct nouveau_object *object)
{
struct nouveau_instmem *imem = (void *)object;
return nouveau_instmem_init(imem);
}
int
_nouveau_instmem_fini(struct nouveau_object *object, bool suspend)
{
struct nouveau_instmem *imem = (void *)object;
return nouveau_instmem_fini(imem, suspend);
}
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