| Christian König | 9a18999 | 2017-09-12 14:29:07 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2017 Advanced Micro Devices, Inc. |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 5 | * copy of this software and associated documentation files (the "Software"), |
| 6 | * to deal in the Software without restriction, including without limitation |
| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
| 9 | * Software is furnished to do so, subject to the following conditions: |
| 10 | * |
| 11 | * The above copyright notice and this permission notice shall be included in |
| 12 | * all copies or substantial portions of the Software. |
| 13 | * |
| 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 17 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| 18 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| 19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| 20 | * OTHER DEALINGS IN THE SOFTWARE. |
| 21 | * |
| 22 | * Authors: Christian König |
| 23 | */ |
| 24 | #ifndef __AMDGPU_MN_H__ |
| 25 | #define __AMDGPU_MN_H__ |
| 26 | |
| 27 | /* |
| 28 | * MMU Notifier |
| 29 | */ |
| 30 | struct amdgpu_mn; |
| 31 | |
| 32 | #if defined(CONFIG_MMU_NOTIFIER) |
| 33 | void amdgpu_mn_lock(struct amdgpu_mn *mn); |
| 34 | void amdgpu_mn_unlock(struct amdgpu_mn *mn); |
| 35 | struct amdgpu_mn *amdgpu_mn_get(struct amdgpu_device *adev); |
| 36 | int amdgpu_mn_register(struct amdgpu_bo *bo, unsigned long addr); |
| 37 | void amdgpu_mn_unregister(struct amdgpu_bo *bo); |
| 38 | #else |
| 39 | static inline void amdgpu_mn_lock(struct amdgpu_mn *mn) {} |
| 40 | static inline void amdgpu_mn_unlock(struct amdgpu_mn *mn) {} |
| 41 | static inline struct amdgpu_mn *amdgpu_mn_get(struct amdgpu_device *adev) |
| 42 | { |
| 43 | return NULL; |
| 44 | } |
| 45 | static inline int amdgpu_mn_register(struct amdgpu_bo *bo, unsigned long addr) |
| 46 | { |
| 47 | return -ENODEV; |
| 48 | } |
| 49 | static inline void amdgpu_mn_unregister(struct amdgpu_bo *bo) {} |
| 50 | #endif |
| 51 | |
| 52 | #endif |