8c21fc49a8
The parameter is used in the dev_private_owner to decide if device pages in the range require to be migrated back to system memory, based if they are or not in the same memory domain. In this case, this reference could come from the same memory domain with devices connected to the same hive. Signed-off-by: Alex Sierra <alex.sierra@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
53 lines
2.1 KiB
C
53 lines
2.1 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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#include <linux/types.h>
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#include <linux/hmm.h>
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#include <linux/rwsem.h>
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#include <linux/workqueue.h>
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#include <linux/interval_tree.h>
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int amdgpu_hmm_range_get_pages(struct mmu_interval_notifier *notifier,
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struct mm_struct *mm, struct page **pages,
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uint64_t start, uint64_t npages,
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struct hmm_range **phmm_range, bool readonly,
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bool mmap_locked, void *owner);
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int amdgpu_hmm_range_get_pages_done(struct hmm_range *hmm_range);
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#if defined(CONFIG_HMM_MIRROR)
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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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#else
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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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