root/kernel/dma/debug.h
/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright (C) 2008 Advanced Micro Devices, Inc.
 *
 * Author: Joerg Roedel <joerg.roedel@amd.com>
 */

#ifndef _KERNEL_DMA_DEBUG_H
#define _KERNEL_DMA_DEBUG_H

#ifdef CONFIG_DMA_API_DEBUG
extern void debug_dma_map_phys(struct device *dev, phys_addr_t phys,
                               size_t size, int direction, dma_addr_t dma_addr,
                               unsigned long attrs);

extern void debug_dma_unmap_phys(struct device *dev, dma_addr_t addr,
                                 size_t size, int direction);

extern void debug_dma_map_sg(struct device *dev, struct scatterlist *sg,
                             int nents, int mapped_ents, int direction,
                             unsigned long attrs);

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,
                                     unsigned long attrs);

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_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_alloc_pages(struct device *dev, struct page *page,
                                  size_t size, int direction,
                                  dma_addr_t dma_addr,
                                  unsigned long attrs);
extern void debug_dma_free_pages(struct device *dev, struct page *page,
                                 size_t size, int direction,
                                 dma_addr_t dma_addr);
#else /* CONFIG_DMA_API_DEBUG */
static inline void debug_dma_map_phys(struct device *dev, phys_addr_t phys,
                                      size_t size, int direction,
                                      dma_addr_t dma_addr, unsigned long attrs)
{
}

static inline void debug_dma_unmap_phys(struct device *dev, dma_addr_t addr,
                                        size_t size, int direction)
{
}

static inline void debug_dma_map_sg(struct device *dev, struct scatterlist *sg,
                                    int nents, int mapped_ents, int direction,
                                    unsigned long attrs)
{
}

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,
                                            unsigned long attrs)
{
}

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_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_alloc_pages(struct device *dev, struct page *page,
                                         size_t size, int direction,
                                         dma_addr_t dma_addr,
                                         unsigned long attrs)
{
}

static inline void debug_dma_free_pages(struct device *dev, struct page *page,
                                        size_t size, int direction,
                                        dma_addr_t dma_addr)
{
}
#endif /* CONFIG_DMA_API_DEBUG */
#endif /* _KERNEL_DMA_DEBUG_H */