cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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kfd_migrate.h (1983B)

      1/* SPDX-License-Identifier: GPL-2.0 OR MIT */
      2/*
      3 * Copyright 2020-2021 Advanced Micro Devices, Inc.
      4 *
      5 * Permission is hereby granted, free of charge, to any person obtaining a
      6 * copy of this software and associated documentation files (the "Software"),
      7 * to deal in the Software without restriction, including without limitation
      8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      9 * and/or sell copies of the Software, and to permit persons to whom the
     10 * Software is furnished to do so, subject to the following conditions:
     11 *
     12 * The above copyright notice and this permission notice shall be included in
     13 * all copies or substantial portions of the Software.
     14 *
     15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     21 * OTHER DEALINGS IN THE SOFTWARE.
     22 *
     23 */
     24
     25#ifndef KFD_MIGRATE_H_
     26#define KFD_MIGRATE_H_
     27
     28#if IS_ENABLED(CONFIG_HSA_AMD_SVM)
     29
     30#include <linux/rwsem.h>
     31#include <linux/list.h>
     32#include <linux/mutex.h>
     33#include <linux/sched/mm.h>
     34#include <linux/hmm.h>
     35#include "kfd_priv.h"
     36#include "kfd_svm.h"
     37
     38enum MIGRATION_COPY_DIR {
     39	FROM_RAM_TO_VRAM = 0,
     40	FROM_VRAM_TO_RAM
     41};
     42
     43int svm_migrate_to_vram(struct svm_range *prange,  uint32_t best_loc,
     44			struct mm_struct *mm);
     45int svm_migrate_vram_to_ram(struct svm_range *prange, struct mm_struct *mm);
     46unsigned long
     47svm_migrate_addr_to_pfn(struct amdgpu_device *adev, unsigned long addr);
     48
     49int svm_migrate_init(struct amdgpu_device *adev);
     50
     51#else
     52
     53static inline int svm_migrate_init(struct amdgpu_device *adev)
     54{
     55	return 0;
     56}
     57
     58#endif /* IS_ENABLED(CONFIG_HSA_AMD_SVM) */
     59
     60#endif /* KFD_MIGRATE_H_ */