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kernel/linux-rt-4.4.41/arch/powerpc/include/asm/swiotlb.h 804 Bytes
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  /*
   * Copyright (C) 2009 Becky Bruce, Freescale Semiconductor
   *
   * This program is free software; you can redistribute  it and/or modify it
   * under  the terms of  the GNU General  Public License as published by the
   * Free Software Foundation;  either version 2 of the  License, or (at your
   * option) any later version.
   *
   */
  
  #ifndef __ASM_SWIOTLB_H
  #define __ASM_SWIOTLB_H
  
  #include <linux/swiotlb.h>
  
  extern struct dma_map_ops swiotlb_dma_ops;
  
  static inline void dma_mark_clean(void *addr, size_t size) {}
  
  extern unsigned int ppc_swiotlb_enable;
  int __init swiotlb_setup_bus_notifier(void);
  
  extern void pci_dma_dev_setup_swiotlb(struct pci_dev *pdev);
  
  #ifdef CONFIG_SWIOTLB
  void swiotlb_detect_4g(void);
  #else
  static inline void swiotlb_detect_4g(void) {}
  #endif
  
  #endif /* __ASM_SWIOTLB_H */