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/* SPDX-License-Identifier: GPL-2.0 OR MIT */
/*
* Copyright 2020-2021 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.
*
*/
#ifndef KFD_MIGRATE_H_
#define KFD_MIGRATE_H_
#if IS_ENABLED(CONFIG_HSA_AMD_SVM)
#include <linux/rwsem.h>
#include <linux/list.h>
#include <linux/mutex.h>
#include <linux/sched/mm.h>
#include <linux/hmm.h>
#include "kfd_priv.h"
#include "kfd_svm.h"
enum MIGRATION_COPY_DIR {
FROM_RAM_TO_VRAM = 0,
FROM_VRAM_TO_RAM
};
int svm_migrate_to_vram(struct svm_range *prange, uint32_t best_loc,
struct mm_struct *mm);
int svm_migrate_vram_to_ram(struct svm_range *prange, struct mm_struct *mm);
unsigned long
svm_migrate_addr_to_pfn(struct amdgpu_device *adev, unsigned long addr);
int svm_migrate_init(struct amdgpu_device *adev);
void svm_migrate_fini(struct amdgpu_device *adev);
#else
static inline int svm_migrate_init(struct amdgpu_device *adev)
{
return 0;
}
static inline void svm_migrate_fini(struct amdgpu_device *adev)
{
/* empty */
}
#endif /* IS_ENABLED(CONFIG_HSA_AMD_SVM) */
#endif /* KFD_MIGRATE_H_ */
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