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/*
* Copyright 2017 Advanced Micro Devices, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Authors: Christian König
*/
#ifndef __AMDGPU_MN_H__
#define __AMDGPU_MN_H__
#include <linux/types.h>
#include <linux/hmm.h>
#include <linux/rwsem.h>
#include <linux/workqueue.h>
#include <linux/interval_tree.h>
#include <linux/mmu_notifier.h>
int amdgpu_hmm_range_get_pages(struct mmu_interval_notifier *notifier,
uint64_t start, uint64_t npages, bool readonly,
void *owner, struct page **pages,
struct hmm_range **phmm_range);
bool amdgpu_hmm_range_get_pages_done(struct hmm_range *hmm_range);
#if defined(CONFIG_HMM_MIRROR)
int amdgpu_hmm_register(struct amdgpu_bo *bo, unsigned long addr);
void amdgpu_hmm_unregister(struct amdgpu_bo *bo);
#else
static inline int amdgpu_hmm_register(struct amdgpu_bo *bo, unsigned long addr)
{
DRM_WARN_ONCE("HMM_MIRROR kernel config option is not enabled, "
"add CONFIG_ZONE_DEVICE=y in config file to fix this\n");
return -ENODEV;
}
static inline void amdgpu_hmm_unregister(struct amdgpu_bo *bo) {}
#endif
#endif
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