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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debug.h (3711B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/*
      3 * Copyright (C) 2008 Advanced Micro Devices, Inc.
      4 *
      5 * Author: Joerg Roedel <joerg.roedel@amd.com>
      6 */
      7
      8#ifndef _KERNEL_DMA_DEBUG_H
      9#define _KERNEL_DMA_DEBUG_H
     10
     11#ifdef CONFIG_DMA_API_DEBUG
     12extern void debug_dma_map_page(struct device *dev, struct page *page,
     13			       size_t offset, size_t size,
     14			       int direction, dma_addr_t dma_addr,
     15			       unsigned long attrs);
     16
     17extern void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
     18				 size_t size, int direction);
     19
     20extern void debug_dma_map_sg(struct device *dev, struct scatterlist *sg,
     21			     int nents, int mapped_ents, int direction,
     22			     unsigned long attrs);
     23
     24extern void debug_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
     25			       int nelems, int dir);
     26
     27extern void debug_dma_alloc_coherent(struct device *dev, size_t size,
     28				     dma_addr_t dma_addr, void *virt,
     29				     unsigned long attrs);
     30
     31extern void debug_dma_free_coherent(struct device *dev, size_t size,
     32				    void *virt, dma_addr_t addr);
     33
     34extern void debug_dma_map_resource(struct device *dev, phys_addr_t addr,
     35				   size_t size, int direction,
     36				   dma_addr_t dma_addr,
     37				   unsigned long attrs);
     38
     39extern void debug_dma_unmap_resource(struct device *dev, dma_addr_t dma_addr,
     40				     size_t size, int direction);
     41
     42extern void debug_dma_sync_single_for_cpu(struct device *dev,
     43					  dma_addr_t dma_handle, size_t size,
     44					  int direction);
     45
     46extern void debug_dma_sync_single_for_device(struct device *dev,
     47					     dma_addr_t dma_handle,
     48					     size_t size, int direction);
     49
     50extern void debug_dma_sync_sg_for_cpu(struct device *dev,
     51				      struct scatterlist *sg,
     52				      int nelems, int direction);
     53
     54extern void debug_dma_sync_sg_for_device(struct device *dev,
     55					 struct scatterlist *sg,
     56					 int nelems, int direction);
     57#else /* CONFIG_DMA_API_DEBUG */
     58static inline void debug_dma_map_page(struct device *dev, struct page *page,
     59				      size_t offset, size_t size,
     60				      int direction, dma_addr_t dma_addr,
     61				      unsigned long attrs)
     62{
     63}
     64
     65static inline void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
     66					size_t size, int direction)
     67{
     68}
     69
     70static inline void debug_dma_map_sg(struct device *dev, struct scatterlist *sg,
     71				    int nents, int mapped_ents, int direction,
     72				    unsigned long attrs)
     73{
     74}
     75
     76static inline void debug_dma_unmap_sg(struct device *dev,
     77				      struct scatterlist *sglist,
     78				      int nelems, int dir)
     79{
     80}
     81
     82static inline void debug_dma_alloc_coherent(struct device *dev, size_t size,
     83					    dma_addr_t dma_addr, void *virt,
     84					    unsigned long attrs)
     85{
     86}
     87
     88static inline void debug_dma_free_coherent(struct device *dev, size_t size,
     89					   void *virt, dma_addr_t addr)
     90{
     91}
     92
     93static inline void debug_dma_map_resource(struct device *dev, phys_addr_t addr,
     94					  size_t size, int direction,
     95					  dma_addr_t dma_addr,
     96					  unsigned long attrs)
     97{
     98}
     99
    100static inline void debug_dma_unmap_resource(struct device *dev,
    101					    dma_addr_t dma_addr, size_t size,
    102					    int direction)
    103{
    104}
    105
    106static inline void debug_dma_sync_single_for_cpu(struct device *dev,
    107						 dma_addr_t dma_handle,
    108						 size_t size, int direction)
    109{
    110}
    111
    112static inline void debug_dma_sync_single_for_device(struct device *dev,
    113						    dma_addr_t dma_handle,
    114						    size_t size, int direction)
    115{
    116}
    117
    118static inline void debug_dma_sync_sg_for_cpu(struct device *dev,
    119					     struct scatterlist *sg,
    120					     int nelems, int direction)
    121{
    122}
    123
    124static inline void debug_dma_sync_sg_for_device(struct device *dev,
    125						struct scatterlist *sg,
    126						int nelems, int direction)
    127{
    128}
    129#endif /* CONFIG_DMA_API_DEBUG */
    130#endif /* _KERNEL_DMA_DEBUG_H */