forked from Minki/linux
79 lines
2.2 KiB
C
79 lines
2.2 KiB
C
/*
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* Copyright 2011 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Ben Skeggs
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*/
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#include "drmP.h"
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#include "nouveau_drv.h"
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#include "nouveau_util.h"
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#include "nouveau_vm.h"
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#include "nouveau_ramht.h"
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struct nv98_crypt_engine {
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struct nouveau_exec_engine base;
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};
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static int
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nv98_crypt_fini(struct drm_device *dev, int engine, bool suspend)
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{
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if (!(nv_rd32(dev, 0x000200) & 0x00004000))
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return 0;
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nv_mask(dev, 0x000200, 0x00004000, 0x00000000);
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return 0;
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}
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static int
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nv98_crypt_init(struct drm_device *dev, int engine)
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{
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nv_mask(dev, 0x000200, 0x00004000, 0x00000000);
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nv_mask(dev, 0x000200, 0x00004000, 0x00004000);
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return 0;
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}
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static void
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nv98_crypt_destroy(struct drm_device *dev, int engine)
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{
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struct nv98_crypt_engine *pcrypt = nv_engine(dev, engine);
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NVOBJ_ENGINE_DEL(dev, CRYPT);
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kfree(pcrypt);
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}
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int
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nv98_crypt_create(struct drm_device *dev)
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{
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struct nv98_crypt_engine *pcrypt;
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pcrypt = kzalloc(sizeof(*pcrypt), GFP_KERNEL);
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if (!pcrypt)
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return -ENOMEM;
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pcrypt->base.destroy = nv98_crypt_destroy;
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pcrypt->base.init = nv98_crypt_init;
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pcrypt->base.fini = nv98_crypt_fini;
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NVOBJ_ENGINE_ADD(dev, CRYPT, &pcrypt->base);
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return 0;
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}
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