/*
   * Copyright (C) 2008 Advanced Micro Devices, Inc.
   *
   * Author: Joerg Roedel <joerg.roedel@amd.com>
   *
   * This program is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 as published
   * by the Free Software Foundation.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
   */
  
  #ifndef __DMA_DEBUG_H
  #define __DMA_DEBUG_H

  #include <linux/types.h>

  struct device;

  struct scatterlist;

  struct bus_type;

  #ifdef CONFIG_DMA_API_DEBUG

  extern void dma_debug_add_bus(struct bus_type *bus);

  extern void dma_debug_init(u32 num_entries);

  extern int dma_debug_resize_entries(u32 num_entries);

  extern void debug_dma_map_page(struct device *dev, struct page *page,
  			       size_t offset, size_t size,
  			       int direction, dma_addr_t dma_addr,
  			       bool map_single);
  
  extern void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
  				 size_t size, int direction, bool map_single);

  extern void debug_dma_map_sg(struct device *dev, struct scatterlist *sg,
  			     int nents, int mapped_ents, int direction);
  
  extern void debug_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
  			       int nelems, int dir);

  extern void debug_dma_alloc_coherent(struct device *dev, size_t size,
  				     dma_addr_t dma_addr, void *virt);
  
  extern void debug_dma_free_coherent(struct device *dev, size_t size,
  				    void *virt, dma_addr_t addr);

  extern void debug_dma_sync_single_for_cpu(struct device *dev,
  					  dma_addr_t dma_handle, size_t size,
  					  int direction);
  
  extern void debug_dma_sync_single_for_device(struct device *dev,
  					     dma_addr_t dma_handle,
  					     size_t size, int direction);

  extern void debug_dma_sync_single_range_for_cpu(struct device *dev,
  						dma_addr_t dma_handle,
  						unsigned long offset,
  						size_t size,
  						int direction);
  
  extern void debug_dma_sync_single_range_for_device(struct device *dev,
  						   dma_addr_t dma_handle,
  						   unsigned long offset,
  						   size_t size, int direction);

  extern void debug_dma_sync_sg_for_cpu(struct device *dev,
  				      struct scatterlist *sg,
  				      int nelems, int direction);
  
  extern void debug_dma_sync_sg_for_device(struct device *dev,
  					 struct scatterlist *sg,
  					 int nelems, int direction);

  extern void debug_dma_dump_mappings(struct device *dev);

  #else /* CONFIG_DMA_API_DEBUG */

  static inline void dma_debug_add_bus(struct bus_type *bus)

  {
  }

  static inline void dma_debug_init(u32 num_entries)
  {
  }

  static inline int dma_debug_resize_entries(u32 num_entries)
  {
  	return 0;
  }

  static inline void debug_dma_map_page(struct device *dev, struct page *page,
  				      size_t offset, size_t size,
  				      int direction, dma_addr_t dma_addr,
  				      bool map_single)
  {
  }
  
  static inline void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
  					size_t size, int direction,
  					bool map_single)
  {
  }

  static inline void debug_dma_map_sg(struct device *dev, struct scatterlist *sg,
  				    int nents, int mapped_ents, int direction)
  {
  }
  
  static inline void debug_dma_unmap_sg(struct device *dev,
  				      struct scatterlist *sglist,
  				      int nelems, int dir)
  {
  }

  static inline void debug_dma_alloc_coherent(struct device *dev, size_t size,
  					    dma_addr_t dma_addr, void *virt)
  {
  }
  
  static inline void debug_dma_free_coherent(struct device *dev, size_t size,
  					   void *virt, dma_addr_t addr)
  {
  }

  static inline void debug_dma_sync_single_for_cpu(struct device *dev,
  						 dma_addr_t dma_handle,
  						 size_t size, int direction)
  {
  }
  
  static inline void debug_dma_sync_single_for_device(struct device *dev,
  						    dma_addr_t dma_handle,
  						    size_t size, int direction)
  {
  }

  static inline void debug_dma_sync_single_range_for_cpu(struct device *dev,
  						       dma_addr_t dma_handle,
  						       unsigned long offset,
  						       size_t size,
  						       int direction)
  {
  }
  
  static inline void debug_dma_sync_single_range_for_device(struct device *dev,
  							  dma_addr_t dma_handle,
  							  unsigned long offset,
  							  size_t size,
  							  int direction)
  {
  }

  static inline void debug_dma_sync_sg_for_cpu(struct device *dev,
  					     struct scatterlist *sg,
  					     int nelems, int direction)
  {
  }
  
  static inline void debug_dma_sync_sg_for_device(struct device *dev,
  						struct scatterlist *sg,
  						int nelems, int direction)
  {
  }

  static inline void debug_dma_dump_mappings(struct device *dev)
  {
  }

  #endif /* CONFIG_DMA_API_DEBUG */

  #endif /* __DMA_DEBUG_H */