/* * 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; enum amdgpu_mn_type {	AMDGPU_MN_TYPE_GFX,	AMDGPU_MN_TYPE_HSA,}; #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,				enum amdgpu_mn_type type);int amdgpu_mn_register(struct amdgpu_bo *bo, unsigned long addr);void amdgpu_mn_unregister(struct amdgpu_bo *bo);#elsestatic 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,					      enum amdgpu_mn_type type){	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