[linux-block.git] / include / linux / dma-debug.h

/*
 * 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;

#ifdef CONFIG_DMA_API_DEBUG

extern void dma_debug_init(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_init(u32 num_entries)
{
}

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 */
Commit	Line	Data
f2f45e5f JR	1	/*
	2	* Copyright (C) 2008 Advanced Micro Devices, Inc.
	3	*
	4	* Author: Joerg Roedel <joerg.roedel@amd.com>
	5	*
	6	* This program is free software; you can redistribute it and/or modify it
	7	* under the terms of the GNU General Public License version 2 as published
	8	* by the Free Software Foundation.
	9	*
	10	* This program is distributed in the hope that it will be useful,
	11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	* GNU General Public License for more details.
	14	*
	15	* You should have received a copy of the GNU General Public License
	16	* along with this program; if not, write to the Free Software
	17	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	18	*/
	19
	20	#ifndef __DMA_DEBUG_H
	21	#define __DMA_DEBUG_H
	22
6bf07871 JR	23	#include <linux/types.h>
6bf07871 JR	24
f2f45e5f	25	struct device;
972aa45c	26	struct scatterlist;
f2f45e5f	27
6bf07871 JR	28	#ifdef CONFIG_DMA_API_DEBUG
	29
	30	extern void dma_debug_init(u32 num_entries);
	31
f62bc980 JR	32	extern void debug_dma_map_page(struct device dev, struct page page,
	33	size_t offset, size_t size,
	34	int direction, dma_addr_t dma_addr,
	35	bool map_single);
	36
	37	extern void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
	38	size_t size, int direction, bool map_single);
	39
972aa45c JR	40	extern void debug_dma_map_sg(struct device dev, struct scatterlist sg,
	41	int nents, int mapped_ents, int direction);
	42
	43	extern void debug_dma_unmap_sg(struct device dev, struct scatterlist sglist,
	44	int nelems, int dir);
f62bc980	45
6bfd4498 JR	46	extern void debug_dma_alloc_coherent(struct device *dev, size_t size,
	47	dma_addr_t dma_addr, void *virt);
	48
	49	extern void debug_dma_free_coherent(struct device *dev, size_t size,
	50	void *virt, dma_addr_t addr);
	51
b9d2317e JR	52	extern void debug_dma_sync_single_for_cpu(struct device *dev,
	53	dma_addr_t dma_handle, size_t size,
	54	int direction);
	55
	56	extern void debug_dma_sync_single_for_device(struct device *dev,
	57	dma_addr_t dma_handle,
	58	size_t size, int direction);
	59
948408ba JR	60	extern void debug_dma_sync_single_range_for_cpu(struct device *dev,
	61	dma_addr_t dma_handle,
	62	unsigned long offset,
	63	size_t size,
	64	int direction);
	65
	66	extern void debug_dma_sync_single_range_for_device(struct device *dev,
	67	dma_addr_t dma_handle,
	68	unsigned long offset,
	69	size_t size, int direction);
	70
a31fba5d JR	71	extern void debug_dma_sync_sg_for_cpu(struct device *dev,
	72	struct scatterlist *sg,
	73	int nelems, int direction);
	74
	75	extern void debug_dma_sync_sg_for_device(struct device *dev,
	76	struct scatterlist *sg,
	77	int nelems, int direction);
	78
ac26c18b DW	79	extern void debug_dma_dump_mappings(struct device *dev);
ac26c18b DW	80
6bf07871 JR	81	#else /* CONFIG_DMA_API_DEBUG */
	82
	83	static inline void dma_debug_init(u32 num_entries)
	84	{
	85	}
	86
f62bc980 JR	87	static inline void debug_dma_map_page(struct device dev, struct page page,
	88	size_t offset, size_t size,
	89	int direction, dma_addr_t dma_addr,
	90	bool map_single)
	91	{
	92	}
	93
	94	static inline void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
	95	size_t size, int direction,
	96	bool map_single)
	97	{
	98	}
	99
972aa45c JR	100	static inline void debug_dma_map_sg(struct device dev, struct scatterlist sg,
	101	int nents, int mapped_ents, int direction)
	102	{
	103	}
	104
	105	static inline void debug_dma_unmap_sg(struct device *dev,
	106	struct scatterlist *sglist,
	107	int nelems, int dir)
	108	{
	109	}
f62bc980	110
6bfd4498 JR	111	static inline void debug_dma_alloc_coherent(struct device *dev, size_t size,
	112	dma_addr_t dma_addr, void *virt)
	113	{
	114	}
	115
	116	static inline void debug_dma_free_coherent(struct device *dev, size_t size,
	117	void *virt, dma_addr_t addr)
	118	{
	119	}
	120
b9d2317e JR	121	static inline void debug_dma_sync_single_for_cpu(struct device *dev,
	122	dma_addr_t dma_handle,
	123	size_t size, int direction)
	124	{
	125	}
	126
	127	static inline void debug_dma_sync_single_for_device(struct device *dev,
	128	dma_addr_t dma_handle,
	129	size_t size, int direction)
	130	{
	131	}
	132
948408ba JR	133	static inline void debug_dma_sync_single_range_for_cpu(struct device *dev,
	134	dma_addr_t dma_handle,
	135	unsigned long offset,
	136	size_t size,
	137	int direction)
	138	{
	139	}
	140
	141	static inline void debug_dma_sync_single_range_for_device(struct device *dev,
	142	dma_addr_t dma_handle,
	143	unsigned long offset,
	144	size_t size,
	145	int direction)
	146	{
	147	}
	148
a31fba5d JR	149	static inline void debug_dma_sync_sg_for_cpu(struct device *dev,
	150	struct scatterlist *sg,
	151	int nelems, int direction)
	152	{
	153	}
	154
	155	static inline void debug_dma_sync_sg_for_device(struct device *dev,
	156	struct scatterlist *sg,
	157	int nelems, int direction)
	158	{
	159	}
	160
ac26c18b DW	161	static inline void debug_dma_dump_mappings(struct device *dev)
	162	{
	163	}
	164
6bf07871 JR	165	#endif /* CONFIG_DMA_API_DEBUG */
6bf07871 JR	166
f2f45e5f	167	#endif /* __DMA_DEBUG_H */