5113f6f70
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kernel add
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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"
void
nvkm_bar_flush(struct nvkm_bar *bar)
{
if (bar && bar->func->flush)
bar->func->flush(bar);
}
struct nvkm_vm *
nvkm_bar_kmap(struct nvkm_bar *bar)
{
/* disallow kmap() until after vm has been bootstrapped */
if (bar && bar->func->kmap && bar->subdev.oneinit)
return bar->func->kmap(bar);
return NULL;
}
int
nvkm_bar_umap(struct nvkm_bar *bar, u64 size, int type, struct nvkm_vma *vma)
{
return bar->func->umap(bar, size, type, vma);
}
static int
nvkm_bar_oneinit(struct nvkm_subdev *subdev)
{
struct nvkm_bar *bar = nvkm_bar(subdev);
return bar->func->oneinit(bar);
}
static int
nvkm_bar_init(struct nvkm_subdev *subdev)
{
struct nvkm_bar *bar = nvkm_bar(subdev);
return bar->func->init(bar);
}
static void *
nvkm_bar_dtor(struct nvkm_subdev *subdev)
{
struct nvkm_bar *bar = nvkm_bar(subdev);
return bar->func->dtor(bar);
}
static const struct nvkm_subdev_func
nvkm_bar = {
.dtor = nvkm_bar_dtor,
.oneinit = nvkm_bar_oneinit,
.init = nvkm_bar_init,
};
void
nvkm_bar_ctor(const struct nvkm_bar_func *func, struct nvkm_device *device,
int index, struct nvkm_bar *bar)
{
nvkm_subdev_ctor(&nvkm_bar, device, index, 0, &bar->subdev);
bar->func = func;
spin_lock_init(&bar->lock);
}
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