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If using old kernel config file, CONFIG_ZONE_DEVICE is not selected, so CONFIG_HMM and CONFIG_HMM_MIRROR is not enabled, the current driver error message "Failed to register MMU notifier" is not clear. Inform user with more descriptive message on how to fix the missing kernel config option. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109808 Signed-off-by: Philip Yang <Philip.Yang@amd.com> Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
64 lines
2.2 KiB
C
64 lines
2.2 KiB
C
/*
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* Copyright 2017 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Christian König
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*/
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#ifndef __AMDGPU_MN_H__
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#define __AMDGPU_MN_H__
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/*
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* HMM mirror
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*/
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struct amdgpu_mn;
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struct hmm_range;
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enum amdgpu_mn_type {
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AMDGPU_MN_TYPE_GFX,
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AMDGPU_MN_TYPE_HSA,
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};
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#if defined(CONFIG_HMM_MIRROR)
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void amdgpu_mn_lock(struct amdgpu_mn *mn);
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void amdgpu_mn_unlock(struct amdgpu_mn *mn);
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struct amdgpu_mn *amdgpu_mn_get(struct amdgpu_device *adev,
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enum amdgpu_mn_type type);
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int amdgpu_mn_register(struct amdgpu_bo *bo, unsigned long addr);
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void amdgpu_mn_unregister(struct amdgpu_bo *bo);
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void amdgpu_hmm_init_range(struct hmm_range *range);
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#else
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static inline void amdgpu_mn_lock(struct amdgpu_mn *mn) {}
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static inline void amdgpu_mn_unlock(struct amdgpu_mn *mn) {}
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static inline struct amdgpu_mn *amdgpu_mn_get(struct amdgpu_device *adev,
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enum amdgpu_mn_type type)
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{
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return NULL;
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}
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static inline int amdgpu_mn_register(struct amdgpu_bo *bo, unsigned long addr)
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{
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DRM_WARN_ONCE("HMM_MIRROR kernel config option is not enabled, "
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"add CONFIG_ZONE_DEVICE=y in config file to fix this\n");
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return -ENODEV;
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}
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static inline void amdgpu_mn_unregister(struct amdgpu_bo *bo) {}
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#endif
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#endif
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