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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 "priv.h"
#include <core/engine.h>
/******************************************************************************
* instmem object base implementation
*****************************************************************************/
void
_nvkm_instobj_dtor(struct nvkm_object *object)
{
struct nvkm_instmem *imem = nvkm_instmem(object);
struct nvkm_instobj *iobj = (void *)object;
mutex_lock(&nv_subdev(imem)->mutex);
list_del(&iobj->head);
mutex_unlock(&nv_subdev(imem)->mutex);
return nvkm_object_destroy(&iobj->base);
}
int
nvkm_instobj_create_(struct nvkm_object *parent, struct nvkm_object *engine,
struct nvkm_oclass *oclass, int length, void **pobject)
{
struct nvkm_instmem *imem = nvkm_instmem(parent);
struct nvkm_instobj *iobj;
int ret;
ret = nvkm_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;
}
/******************************************************************************
* instmem subdev base implementation
*****************************************************************************/
static int
nvkm_instmem_alloc(struct nvkm_instmem *imem, struct nvkm_object *parent,
u32 size, u32 align, struct nvkm_object **pobject)
{
struct nvkm_instmem_impl *impl = (void *)imem->base.object.oclass;
struct nvkm_instobj_args args = { .size = size, .align = align };
return nvkm_object_ctor(parent, &parent->engine->subdev.object,
impl->instobj, &args, sizeof(args), pobject);
}
int
_nvkm_instmem_fini(struct nvkm_object *object, bool suspend)
{
struct nvkm_instmem *imem = (void *)object;
struct nvkm_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 nvkm_subdev_fini(&imem->base, suspend);
}
int
_nvkm_instmem_init(struct nvkm_object *object)
{
struct nvkm_instmem *imem = (void *)object;
struct nvkm_instobj *iobj;
int ret, i;
ret = nvkm_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
nvkm_instmem_create_(struct nvkm_object *parent, struct nvkm_object *engine,
struct nvkm_oclass *oclass, int length, void **pobject)
{
struct nvkm_instmem *imem;
int ret;
ret = nvkm_subdev_create_(parent, engine, oclass, 0, "INSTMEM",
"instmem", length, pobject);
imem = *pobject;
if (ret)
return ret;
INIT_LIST_HEAD(&imem->list);
imem->alloc = nvkm_instmem_alloc;
return 0;
}
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