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author | Ben Skeggs <bskeggs@redhat.com> | 2011-08-11 04:58:06 (GMT) |
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committer | Ben Skeggs <bskeggs@redhat.com> | 2011-12-21 09:01:10 (GMT) |
commit | 8f27c54342dffbfbafbddd6e43f011e6cb16d285 (patch) | |
tree | cc8e98935b7d9f070585defb128800edc5f5d51a /drivers/gpu/drm/nouveau/nv98_crypt.c | |
parent | 771e1035b9bfdb0c3f0e34bd281d73b721a10adb (diff) | |
download | linux-fsl-qoriq-8f27c54342dffbfbafbddd6e43f011e6cb16d285.tar.xz |
drm/nouveau/vdec: implement stub modules for the known engines
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nv98_crypt.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nv98_crypt.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nv98_crypt.c b/drivers/gpu/drm/nouveau/nv98_crypt.c new file mode 100644 index 0000000..db94ff0 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nv98_crypt.c @@ -0,0 +1,78 @@ +/* + * 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; +} |