[net-next-2.6.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;
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 */
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;
41531c8f	27	struct bus_type;
f2f45e5f	28
6bf07871 JR	29	#ifdef CONFIG_DMA_API_DEBUG
6bf07871 JR	30
41531c8f JR	31	extern void dma_debug_add_bus(struct bus_type *bus);
41531c8f JR	32
6bf07871 JR	33	extern void dma_debug_init(u32 num_entries);
6bf07871 JR	34
e6a1a89d FT	35	extern int dma_debug_resize_entries(u32 num_entries);
e6a1a89d FT	36
f62bc980 JR	37	extern void debug_dma_map_page(struct device dev, struct page page,
	38	size_t offset, size_t size,
	39	int direction, dma_addr_t dma_addr,
	40	bool map_single);
	41
	42	extern void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
	43	size_t size, int direction, bool map_single);
	44
972aa45c JR	45	extern void debug_dma_map_sg(struct device dev, struct scatterlist sg,
	46	int nents, int mapped_ents, int direction);
	47
	48	extern void debug_dma_unmap_sg(struct device dev, struct scatterlist sglist,
	49	int nelems, int dir);
f62bc980	50
6bfd4498 JR	51	extern void debug_dma_alloc_coherent(struct device *dev, size_t size,
	52	dma_addr_t dma_addr, void *virt);
	53
	54	extern void debug_dma_free_coherent(struct device *dev, size_t size,
	55	void *virt, dma_addr_t addr);
	56
b9d2317e JR	57	extern void debug_dma_sync_single_for_cpu(struct device *dev,
	58	dma_addr_t dma_handle, size_t size,
	59	int direction);
	60
	61	extern void debug_dma_sync_single_for_device(struct device *dev,
	62	dma_addr_t dma_handle,
	63	size_t size, int direction);
	64
948408ba JR	65	extern void debug_dma_sync_single_range_for_cpu(struct device *dev,
	66	dma_addr_t dma_handle,
	67	unsigned long offset,
	68	size_t size,
	69	int direction);
	70
	71	extern void debug_dma_sync_single_range_for_device(struct device *dev,
	72	dma_addr_t dma_handle,
	73	unsigned long offset,
	74	size_t size, int direction);
	75
a31fba5d JR	76	extern void debug_dma_sync_sg_for_cpu(struct device *dev,
	77	struct scatterlist *sg,
	78	int nelems, int direction);
	79
	80	extern void debug_dma_sync_sg_for_device(struct device *dev,
	81	struct scatterlist *sg,
	82	int nelems, int direction);
	83
ac26c18b DW	84	extern void debug_dma_dump_mappings(struct device *dev);
ac26c18b DW	85
6bf07871 JR	86	#else /* CONFIG_DMA_API_DEBUG */
6bf07871 JR	87
84be58d4	88	static inline void dma_debug_add_bus(struct bus_type *bus)
41531c8f JR	89	{
	90	}
	91
6bf07871 JR	92	static inline void dma_debug_init(u32 num_entries)
	93	{
	94	}
	95
e6a1a89d FT	96	static inline int dma_debug_resize_entries(u32 num_entries)
	97	{
	98	return 0;
	99	}
	100
f62bc980 JR	101	static inline void debug_dma_map_page(struct device dev, struct page page,
	102	size_t offset, size_t size,
	103	int direction, dma_addr_t dma_addr,
	104	bool map_single)
	105	{
	106	}
	107
	108	static inline void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
	109	size_t size, int direction,
	110	bool map_single)
	111	{
	112	}
	113
972aa45c JR	114	static inline void debug_dma_map_sg(struct device dev, struct scatterlist sg,
	115	int nents, int mapped_ents, int direction)
	116	{
	117	}
	118
	119	static inline void debug_dma_unmap_sg(struct device *dev,
	120	struct scatterlist *sglist,
	121	int nelems, int dir)
	122	{
	123	}
f62bc980	124
6bfd4498 JR	125	static inline void debug_dma_alloc_coherent(struct device *dev, size_t size,
	126	dma_addr_t dma_addr, void *virt)
	127	{
	128	}
	129
	130	static inline void debug_dma_free_coherent(struct device *dev, size_t size,
	131	void *virt, dma_addr_t addr)
	132	{
	133	}
	134
b9d2317e JR	135	static inline void debug_dma_sync_single_for_cpu(struct device *dev,
	136	dma_addr_t dma_handle,
	137	size_t size, int direction)
	138	{
	139	}
	140
	141	static inline void debug_dma_sync_single_for_device(struct device *dev,
	142	dma_addr_t dma_handle,
	143	size_t size, int direction)
	144	{
	145	}
	146
948408ba JR	147	static inline void debug_dma_sync_single_range_for_cpu(struct device *dev,
	148	dma_addr_t dma_handle,
	149	unsigned long offset,
	150	size_t size,
	151	int direction)
	152	{
	153	}
	154
	155	static inline void debug_dma_sync_single_range_for_device(struct device *dev,
	156	dma_addr_t dma_handle,
	157	unsigned long offset,
	158	size_t size,
	159	int direction)
	160	{
	161	}
	162
a31fba5d JR	163	static inline void debug_dma_sync_sg_for_cpu(struct device *dev,
	164	struct scatterlist *sg,
	165	int nelems, int direction)
	166	{
	167	}
	168
	169	static inline void debug_dma_sync_sg_for_device(struct device *dev,
	170	struct scatterlist *sg,
	171	int nelems, int direction)
	172	{
	173	}
	174
ac26c18b DW	175	static inline void debug_dma_dump_mappings(struct device *dev)
	176	{
	177	}
	178
6bf07871 JR	179	#endif /* CONFIG_DMA_API_DEBUG */
6bf07871 JR	180
f2f45e5f	181	#endif /* __DMA_DEBUG_H */