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author | Christian König <christian.koenig@amd.com> | 2017-09-12 21:29:07 +0300 |
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committer | Alex Deucher <alexander.deucher@amd.com> | 2017-09-12 21:29:37 +0300 |
commit | 9a18999640fa6aed0578c59c328dca9ca01a2d9a (patch) | |
tree | 4c596a868adab1af0ba2faa603f9290315e9a638 /drivers/gpu/drm/amd/amdgpu/amdgpu_mn.h | |
parent | 711becf0e6c5bf7cabd8f1ca528e9bbe085fda9a (diff) | |
download | linux-9a18999640fa6aed0578c59c328dca9ca01a2d9a.tar.xz |
drm/amdgpu: move MMU notifier related defines to amdgpu_mn.h
Just some cleanup.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_mn.h')
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_mn.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.h new file mode 100644 index 000000000000..d0095a3793b8 --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.h @@ -0,0 +1,52 @@ +/* + * Copyright 2017 Advanced Micro Devices, 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: Christian König + */ +#ifndef __AMDGPU_MN_H__ +#define __AMDGPU_MN_H__ + +/* + * MMU Notifier + */ +struct amdgpu_mn; + +#if defined(CONFIG_MMU_NOTIFIER) +void amdgpu_mn_lock(struct amdgpu_mn *mn); +void amdgpu_mn_unlock(struct amdgpu_mn *mn); +struct amdgpu_mn *amdgpu_mn_get(struct amdgpu_device *adev); +int amdgpu_mn_register(struct amdgpu_bo *bo, unsigned long addr); +void amdgpu_mn_unregister(struct amdgpu_bo *bo); +#else +static inline void amdgpu_mn_lock(struct amdgpu_mn *mn) {} +static inline void amdgpu_mn_unlock(struct amdgpu_mn *mn) {} +static inline struct amdgpu_mn *amdgpu_mn_get(struct amdgpu_device *adev) +{ + return NULL; +} +static inline int amdgpu_mn_register(struct amdgpu_bo *bo, unsigned long addr) +{ + return -ENODEV; +} +static inline void amdgpu_mn_unregister(struct amdgpu_bo *bo) {} +#endif + +#endif |