1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Copyright 2017 Advanced Micro Devices, Inc.
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * Permission is hereby granted, free of charge, to any person obtaining a
5*4882a593Smuzhiyun * copy of this software and associated documentation files (the "Software"),
6*4882a593Smuzhiyun * to deal in the Software without restriction, including without limitation
7*4882a593Smuzhiyun * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8*4882a593Smuzhiyun * and/or sell copies of the Software, and to permit persons to whom the
9*4882a593Smuzhiyun * Software is furnished to do so, subject to the following conditions:
10*4882a593Smuzhiyun *
11*4882a593Smuzhiyun * The above copyright notice and this permission notice shall be included in
12*4882a593Smuzhiyun * all copies or substantial portions of the Software.
13*4882a593Smuzhiyun *
14*4882a593Smuzhiyun * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15*4882a593Smuzhiyun * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16*4882a593Smuzhiyun * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17*4882a593Smuzhiyun * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18*4882a593Smuzhiyun * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19*4882a593Smuzhiyun * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20*4882a593Smuzhiyun * OTHER DEALINGS IN THE SOFTWARE.
21*4882a593Smuzhiyun *
22*4882a593Smuzhiyun * Authors: Christian König
23*4882a593Smuzhiyun */
24*4882a593Smuzhiyun #ifndef __AMDGPU_MN_H__
25*4882a593Smuzhiyun #define __AMDGPU_MN_H__
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun #include <linux/types.h>
28*4882a593Smuzhiyun #include <linux/hmm.h>
29*4882a593Smuzhiyun #include <linux/rwsem.h>
30*4882a593Smuzhiyun #include <linux/workqueue.h>
31*4882a593Smuzhiyun #include <linux/interval_tree.h>
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun #if defined(CONFIG_HMM_MIRROR)
34*4882a593Smuzhiyun int amdgpu_mn_register(struct amdgpu_bo *bo, unsigned long addr);
35*4882a593Smuzhiyun void amdgpu_mn_unregister(struct amdgpu_bo *bo);
36*4882a593Smuzhiyun #else
amdgpu_mn_register(struct amdgpu_bo * bo,unsigned long addr)37*4882a593Smuzhiyun static inline int amdgpu_mn_register(struct amdgpu_bo *bo, unsigned long addr)
38*4882a593Smuzhiyun {
39*4882a593Smuzhiyun DRM_WARN_ONCE("HMM_MIRROR kernel config option is not enabled, "
40*4882a593Smuzhiyun "add CONFIG_ZONE_DEVICE=y in config file to fix this\n");
41*4882a593Smuzhiyun return -ENODEV;
42*4882a593Smuzhiyun }
amdgpu_mn_unregister(struct amdgpu_bo * bo)43*4882a593Smuzhiyun static inline void amdgpu_mn_unregister(struct amdgpu_bo *bo) {}
44*4882a593Smuzhiyun #endif
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun #endif
47