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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/subdev.h>
#include <core/device.h>
#include <core/option.h>
struct nvkm_subdev *
nvkm_subdev(void *obj, int idx)
{
struct nvkm_object *object = nv_object(obj);
while (object && !nv_iclass(object, NV_SUBDEV_CLASS))
object = object->parent;
if (object == NULL || nv_subidx(nv_subdev(object)) != idx)
object = nv_device(obj)->subdev[idx];
return object ? nv_subdev(object) : NULL;
}
void
nvkm_subdev_reset(struct nvkm_object *subdev)
{
nv_trace(subdev, "resetting...\n");
nv_ofuncs(subdev)->fini(subdev, false);
nv_debug(subdev, "reset\n");
}
int
nvkm_subdev_init(struct nvkm_subdev *subdev)
{
int ret = nvkm_object_init(&subdev->object);
if (ret)
return ret;
nvkm_subdev_reset(&subdev->object);
return 0;
}
int
_nvkm_subdev_init(struct nvkm_object *object)
{
return nvkm_subdev_init(nv_subdev(object));
}
int
nvkm_subdev_fini(struct nvkm_subdev *subdev, bool suspend)
{
if (subdev->unit) {
nv_mask(subdev, 0x000200, subdev->unit, 0x00000000);
nv_mask(subdev, 0x000200, subdev->unit, subdev->unit);
}
return nvkm_object_fini(&subdev->object, suspend);
}
int
_nvkm_subdev_fini(struct nvkm_object *object, bool suspend)
{
return nvkm_subdev_fini(nv_subdev(object), suspend);
}
void
nvkm_subdev_destroy(struct nvkm_subdev *subdev)
{
int subidx = nv_hclass(subdev) & 0xff;
nv_device(subdev)->subdev[subidx] = NULL;
nvkm_object_destroy(&subdev->object);
}
void
_nvkm_subdev_dtor(struct nvkm_object *object)
{
nvkm_subdev_destroy(nv_subdev(object));
}
int
nvkm_subdev_create_(struct nvkm_object *parent, struct nvkm_object *engine,
struct nvkm_oclass *oclass, u32 pclass,
const char *subname, const char *sysname,
int size, void **pobject)
{
struct nvkm_subdev *subdev;
int ret;
ret = nvkm_object_create_(parent, engine, oclass, pclass |
NV_SUBDEV_CLASS, size, pobject);
subdev = *pobject;
if (ret)
return ret;
__mutex_init(&subdev->mutex, subname, &oclass->lock_class_key);
subdev->name = subname;
if (parent) {
struct nvkm_device *device = nv_device(parent);
subdev->debug = nvkm_dbgopt(device->dbgopt, subname);
subdev->mmio = nv_subdev(device)->mmio;
}
return 0;
}
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