[linux-2.6-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;
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 */
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
6c9c6d63 SK	42	extern void debug_dma_mapping_error(struct device *dev, dma_addr_t dma_addr);
6c9c6d63 SK	43
f62bc980 JR	44	extern void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
	45	size_t size, int direction, bool map_single);
	46
972aa45c JR	47	extern void debug_dma_map_sg(struct device dev, struct scatterlist sg,
	48	int nents, int mapped_ents, int direction);
	49
	50	extern void debug_dma_unmap_sg(struct device dev, struct scatterlist sglist,
	51	int nelems, int dir);
f62bc980	52
6bfd4498 JR	53	extern void debug_dma_alloc_coherent(struct device *dev, size_t size,
	54	dma_addr_t dma_addr, void *virt);
	55
	56	extern void debug_dma_free_coherent(struct device *dev, size_t size,
	57	void *virt, dma_addr_t addr);
	58
b9d2317e JR	59	extern void debug_dma_sync_single_for_cpu(struct device *dev,
	60	dma_addr_t dma_handle, size_t size,
	61	int direction);
	62
	63	extern void debug_dma_sync_single_for_device(struct device *dev,
	64	dma_addr_t dma_handle,
	65	size_t size, int direction);
	66
948408ba JR	67	extern void debug_dma_sync_single_range_for_cpu(struct device *dev,
	68	dma_addr_t dma_handle,
	69	unsigned long offset,
	70	size_t size,
	71	int direction);
	72
	73	extern void debug_dma_sync_single_range_for_device(struct device *dev,
	74	dma_addr_t dma_handle,
	75	unsigned long offset,
	76	size_t size, int direction);
	77
a31fba5d JR	78	extern void debug_dma_sync_sg_for_cpu(struct device *dev,
	79	struct scatterlist *sg,
	80	int nelems, int direction);
	81
	82	extern void debug_dma_sync_sg_for_device(struct device *dev,
	83	struct scatterlist *sg,
	84	int nelems, int direction);
	85
ac26c18b DW	86	extern void debug_dma_dump_mappings(struct device *dev);
ac26c18b DW	87
0abdd7a8 DW	88	extern void debug_dma_assert_idle(struct page *page);
0abdd7a8 DW	89
6bf07871 JR	90	#else /* CONFIG_DMA_API_DEBUG */
6bf07871 JR	91
84be58d4	92	static inline void dma_debug_add_bus(struct bus_type *bus)
41531c8f JR	93	{
	94	}
	95
6bf07871 JR	96	static inline void dma_debug_init(u32 num_entries)
	97	{
	98	}
	99
e6a1a89d FT	100	static inline int dma_debug_resize_entries(u32 num_entries)
	101	{
	102	return 0;
	103	}
	104
f62bc980 JR	105	static inline void debug_dma_map_page(struct device dev, struct page page,
	106	size_t offset, size_t size,
	107	int direction, dma_addr_t dma_addr,
	108	bool map_single)
	109	{
	110	}
	111
6c9c6d63 SK	112	static inline void debug_dma_mapping_error(struct device *dev,
	113	dma_addr_t dma_addr)
	114	{
	115	}
	116
f62bc980 JR	117	static inline void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
	118	size_t size, int direction,
	119	bool map_single)
	120	{
	121	}
	122
972aa45c JR	123	static inline void debug_dma_map_sg(struct device dev, struct scatterlist sg,
	124	int nents, int mapped_ents, int direction)
	125	{
	126	}
	127
	128	static inline void debug_dma_unmap_sg(struct device *dev,
	129	struct scatterlist *sglist,
	130	int nelems, int dir)
	131	{
	132	}
f62bc980	133
6bfd4498 JR	134	static inline void debug_dma_alloc_coherent(struct device *dev, size_t size,
	135	dma_addr_t dma_addr, void *virt)
	136	{
	137	}
	138
	139	static inline void debug_dma_free_coherent(struct device *dev, size_t size,
	140	void *virt, dma_addr_t addr)
	141	{
	142	}
	143
b9d2317e JR	144	static inline void debug_dma_sync_single_for_cpu(struct device *dev,
	145	dma_addr_t dma_handle,
	146	size_t size, int direction)
	147	{
	148	}
	149
	150	static inline void debug_dma_sync_single_for_device(struct device *dev,
	151	dma_addr_t dma_handle,
	152	size_t size, int direction)
	153	{
	154	}
	155
948408ba JR	156	static inline void debug_dma_sync_single_range_for_cpu(struct device *dev,
	157	dma_addr_t dma_handle,
	158	unsigned long offset,
	159	size_t size,
	160	int direction)
	161	{
	162	}
	163
	164	static inline void debug_dma_sync_single_range_for_device(struct device *dev,
	165	dma_addr_t dma_handle,
	166	unsigned long offset,
	167	size_t size,
	168	int direction)
	169	{
	170	}
	171
a31fba5d JR	172	static inline void debug_dma_sync_sg_for_cpu(struct device *dev,
	173	struct scatterlist *sg,
	174	int nelems, int direction)
	175	{
	176	}
	177
	178	static inline void debug_dma_sync_sg_for_device(struct device *dev,
	179	struct scatterlist *sg,
	180	int nelems, int direction)
	181	{
	182	}
	183
ac26c18b DW	184	static inline void debug_dma_dump_mappings(struct device *dev)
	185	{
	186	}
	187
0abdd7a8 DW	188	static inline void debug_dma_assert_idle(struct page *page)
	189	{
	190	}
	191
6bf07871 JR	192	#endif /* CONFIG_DMA_API_DEBUG */
6bf07871 JR	193
f2f45e5f	194	#endif /* __DMA_DEBUG_H */