81fa1af31b
Convert the collision-retry lock around hmm_range_fault to use the one now provided by the mmu_interval notifier. Although this driver does not seem to use the collision retry lock that hmm provides correctly, it can still be converted over to use the mmu_interval_notifier api instead of hmm_mirror without too much trouble. This also deletes another place where a driver is associating additional data (struct amdgpu_mn) with a mmu_struct. Link: https://lore.kernel.org/r/20191112202231.3856-13-jgg@ziepe.ca Signed-off-by: Philip Yang <Philip.Yang@amd.com> Reviewed-by: Philip Yang <Philip.Yang@amd.com> Tested-by: Philip Yang <Philip.Yang@amd.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
47 lines
1.8 KiB
C
47 lines
1.8 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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#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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