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/*
* Copyright 2011 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 "drmP.h"
#include "nouveau_drv.h"
#include "nouveau_util.h"
#include "nouveau_vm.h"
#include "nouveau_ramht.h"
struct nv98_crypt_engine {
struct nouveau_exec_engine base;
};
static int
nv98_crypt_fini(struct drm_device *dev, int engine, bool suspend)
{
if (!(nv_rd32(dev, 0x000200) & 0x00004000))
return 0;
nv_mask(dev, 0x000200, 0x00004000, 0x00000000);
return 0;
}
static int
nv98_crypt_init(struct drm_device *dev, int engine)
{
nv_mask(dev, 0x000200, 0x00004000, 0x00000000);
nv_mask(dev, 0x000200, 0x00004000, 0x00004000);
return 0;
}
static void
nv98_crypt_destroy(struct drm_device *dev, int engine)
{
struct nv98_crypt_engine *pcrypt = nv_engine(dev, engine);
NVOBJ_ENGINE_DEL(dev, CRYPT);
kfree(pcrypt);
}
int
nv98_crypt_create(struct drm_device *dev)
{
struct nv98_crypt_engine *pcrypt;
pcrypt = kzalloc(sizeof(*pcrypt), GFP_KERNEL);
if (!pcrypt)
return -ENOMEM;
pcrypt->base.destroy = nv98_crypt_destroy;
pcrypt->base.init = nv98_crypt_init;
pcrypt->base.fini = nv98_crypt_fini;
NVOBJ_ENGINE_ADD(dev, CRYPT, &pcrypt->base);
return 0;
}
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