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2 * Copyright 2017 Advanced Micro Devices, Inc.
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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.
22 * Authors: Christian König
24 #ifndef __AMDGPU_MN_H__
25 #define __AMDGPU_MN_H__
38 #if defined(CONFIG_HMM_MIRROR)
39 void amdgpu_mn_lock(struct amdgpu_mn
*mn
);
40 void amdgpu_mn_unlock(struct amdgpu_mn
*mn
);
41 struct amdgpu_mn
*amdgpu_mn_get(struct amdgpu_device
*adev
,
42 enum amdgpu_mn_type type
);
43 int amdgpu_mn_register(struct amdgpu_bo
*bo
, unsigned long addr
);
44 void amdgpu_mn_unregister(struct amdgpu_bo
*bo
);
45 void amdgpu_hmm_init_range(struct hmm_range
*range
);
47 static inline void amdgpu_mn_lock(struct amdgpu_mn
*mn
) {}
48 static inline void amdgpu_mn_unlock(struct amdgpu_mn
*mn
) {}
49 static inline struct amdgpu_mn
*amdgpu_mn_get(struct amdgpu_device
*adev
,
50 enum amdgpu_mn_type type
)
54 static inline int amdgpu_mn_register(struct amdgpu_bo
*bo
, unsigned long addr
)
56 DRM_WARN_ONCE("HMM_MIRROR kernel config option is not enabled, "
57 "add CONFIG_ZONE_DEVICE=y in config file to fix this\n");
60 static inline void amdgpu_mn_unregister(struct amdgpu_bo
*bo
) {}