1/* $NetBSD: amdgpu_mn.h,v 1.2 2021/12/18 23:44:58 riastradh Exp $ */ 2 3/* 4 * Copyright 2017 Advanced Micro Devices, Inc. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 * 24 * Authors: Christian K��nig 25 */ 26#ifndef __AMDGPU_MN_H__ 27#define __AMDGPU_MN_H__ 28 29#include <linux/types.h> 30#include <linux/hmm.h> 31#include <linux/rwsem.h> 32#include <linux/workqueue.h> 33#include <linux/interval_tree.h> 34 35#if defined(CONFIG_HMM_MIRROR) 36int amdgpu_mn_register(struct amdgpu_bo *bo, unsigned long addr); 37void amdgpu_mn_unregister(struct amdgpu_bo *bo); 38#else 39static inline int amdgpu_mn_register(struct amdgpu_bo *bo, unsigned long addr) 40{ 41 DRM_WARN_ONCE("HMM_MIRROR kernel config option is not enabled, " 42 "add CONFIG_ZONE_DEVICE=y in config file to fix this\n"); 43 return -ENODEV; 44} 45static inline void amdgpu_mn_unregister(struct amdgpu_bo *bo) {} 46#endif 47 48#endif 49