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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amdgpu_mn.h (2147B)

      1/*
      2 * Copyright 2017 Advanced Micro Devices, Inc.
      3 *
      4 * Permission is hereby granted, free of charge, to any person obtaining a
      5 * copy of this software and associated documentation files (the "Software"),
      6 * to deal in the Software without restriction, including without limitation
      7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      8 * and/or sell copies of the Software, and to permit persons to whom the
      9 * Software is furnished to do so, subject to the following conditions:
     10 *
     11 * The above copyright notice and this permission notice shall be included in
     12 * all copies or substantial portions of the Software.
     13 *
     14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     20 * OTHER DEALINGS IN THE SOFTWARE.
     21 *
     22 * Authors: Christian König
     23 */
     24#ifndef __AMDGPU_MN_H__
     25#define __AMDGPU_MN_H__
     26
     27#include <linux/types.h>
     28#include <linux/hmm.h>
     29#include <linux/rwsem.h>
     30#include <linux/workqueue.h>
     31#include <linux/interval_tree.h>
     32
     33int amdgpu_hmm_range_get_pages(struct mmu_interval_notifier *notifier,
     34			       struct mm_struct *mm, struct page **pages,
     35			       uint64_t start, uint64_t npages,
     36			       struct hmm_range **phmm_range, bool readonly,
     37			       bool mmap_locked, void *owner);
     38int amdgpu_hmm_range_get_pages_done(struct hmm_range *hmm_range);
     39
     40#if defined(CONFIG_HMM_MIRROR)
     41int amdgpu_mn_register(struct amdgpu_bo *bo, unsigned long addr);
     42void amdgpu_mn_unregister(struct amdgpu_bo *bo);
     43#else
     44static inline int amdgpu_mn_register(struct amdgpu_bo *bo, unsigned long addr)
     45{
     46	DRM_WARN_ONCE("HMM_MIRROR kernel config option is not enabled, "
     47		      "add CONFIG_ZONE_DEVICE=y in config file to fix this\n");
     48	return -ENODEV;
     49}
     50static inline void amdgpu_mn_unregister(struct amdgpu_bo *bo) {}
     51#endif
     52
     53#endif