root/include/linux/dma-debug.h

INCLUDED FROM

DEFINITIONS

1. dma_debug_add_bus
2. dma_debug_init
3. dma_debug_resize_entries
4. debug_dma_map_page
5. debug_dma_mapping_error
6. debug_dma_unmap_page
7. debug_dma_map_sg
8. debug_dma_unmap_sg
9. debug_dma_alloc_coherent
10. debug_dma_free_coherent
11. debug_dma_sync_single_for_cpu
12. debug_dma_sync_single_for_device
13. debug_dma_sync_single_range_for_cpu
14. debug_dma_sync_single_range_for_device
15. debug_dma_sync_sg_for_cpu
16. debug_dma_sync_sg_for_device
17. debug_dma_dump_mappings
18. debug_dma_assert_idle

/*
 * 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_mapping_error(struct device *dev, dma_addr_t dma_addr);

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);

extern void debug_dma_assert_idle(struct page *page);

#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_mapping_error(struct device *dev,
                                          dma_addr_t dma_addr)
{
}

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)
{
}

static inline void debug_dma_assert_idle(struct page *page)
{
}

#endif /* CONFIG_DMA_API_DEBUG */

#endif /* __DMA_DEBUG_H */