[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 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_map_resource(struct device *dev, phys_addr_t addr,
				   size_t size, int direction,
				   dma_addr_t dma_addr);

extern void debug_dma_unmap_resource(struct device *dev, dma_addr_t dma_addr,
				     size_t size, int direction);

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 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_map_resource(struct device *dev, phys_addr_t addr,
					  size_t size, int direction,
					  dma_addr_t dma_addr)
{
}

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

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
e6a1a89d FT	33	extern int dma_debug_resize_entries(u32 num_entries);
e6a1a89d FT	34
f62bc980 JR	35	extern void debug_dma_map_page(struct device dev, struct page page,
	36	size_t offset, size_t size,
	37	int direction, dma_addr_t dma_addr,
	38	bool map_single);
	39
6c9c6d63 SK	40	extern void debug_dma_mapping_error(struct device *dev, dma_addr_t dma_addr);
6c9c6d63 SK	41
f62bc980 JR	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
0e74b34d NS	57	extern void debug_dma_map_resource(struct device *dev, phys_addr_t addr,
	58	size_t size, int direction,
	59	dma_addr_t dma_addr);
	60
	61	extern void debug_dma_unmap_resource(struct device *dev, dma_addr_t dma_addr,
	62	size_t size, int direction);
	63
b9d2317e JR	64	extern void debug_dma_sync_single_for_cpu(struct device *dev,
	65	dma_addr_t dma_handle, size_t size,
	66	int direction);
	67
	68	extern void debug_dma_sync_single_for_device(struct device *dev,
	69	dma_addr_t dma_handle,
	70	size_t size, int direction);
	71
948408ba JR	72	extern void debug_dma_sync_single_range_for_cpu(struct device *dev,
	73	dma_addr_t dma_handle,
	74	unsigned long offset,
	75	size_t size,
	76	int direction);
	77
	78	extern void debug_dma_sync_single_range_for_device(struct device *dev,
	79	dma_addr_t dma_handle,
	80	unsigned long offset,
	81	size_t size, int direction);
	82
a31fba5d JR	83	extern void debug_dma_sync_sg_for_cpu(struct device *dev,
	84	struct scatterlist *sg,
	85	int nelems, int direction);
	86
	87	extern void debug_dma_sync_sg_for_device(struct device *dev,
	88	struct scatterlist *sg,
	89	int nelems, int direction);
	90
ac26c18b DW	91	extern void debug_dma_dump_mappings(struct device *dev);
ac26c18b DW	92
0abdd7a8 DW	93	extern void debug_dma_assert_idle(struct page *page);
0abdd7a8 DW	94
6bf07871 JR	95	#else /* CONFIG_DMA_API_DEBUG */
6bf07871 JR	96
84be58d4	97	static inline void dma_debug_add_bus(struct bus_type *bus)
41531c8f JR	98	{
	99	}
	100
e6a1a89d FT	101	static inline int dma_debug_resize_entries(u32 num_entries)
	102	{
	103	return 0;
	104	}
	105
f62bc980 JR	106	static inline void debug_dma_map_page(struct device dev, struct page page,
	107	size_t offset, size_t size,
	108	int direction, dma_addr_t dma_addr,
	109	bool map_single)
	110	{
	111	}
	112
6c9c6d63 SK	113	static inline void debug_dma_mapping_error(struct device *dev,
	114	dma_addr_t dma_addr)
	115	{
	116	}
	117
f62bc980 JR	118	static inline void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
	119	size_t size, int direction,
	120	bool map_single)
	121	{
	122	}
	123
972aa45c JR	124	static inline void debug_dma_map_sg(struct device dev, struct scatterlist sg,
	125	int nents, int mapped_ents, int direction)
	126	{
	127	}
	128
	129	static inline void debug_dma_unmap_sg(struct device *dev,
	130	struct scatterlist *sglist,
	131	int nelems, int dir)
	132	{
	133	}
f62bc980	134
6bfd4498 JR	135	static inline void debug_dma_alloc_coherent(struct device *dev, size_t size,
	136	dma_addr_t dma_addr, void *virt)
	137	{
	138	}
	139
	140	static inline void debug_dma_free_coherent(struct device *dev, size_t size,
	141	void *virt, dma_addr_t addr)
	142	{
	143	}
	144
0e74b34d NS	145	static inline void debug_dma_map_resource(struct device *dev, phys_addr_t addr,
	146	size_t size, int direction,
	147	dma_addr_t dma_addr)
	148	{
	149	}
	150
	151	static inline void debug_dma_unmap_resource(struct device *dev,
	152	dma_addr_t dma_addr, size_t size,
	153	int direction)
	154	{
	155	}
	156
b9d2317e JR	157	static inline void debug_dma_sync_single_for_cpu(struct device *dev,
	158	dma_addr_t dma_handle,
	159	size_t size, int direction)
	160	{
	161	}
	162
	163	static inline void debug_dma_sync_single_for_device(struct device *dev,
	164	dma_addr_t dma_handle,
	165	size_t size, int direction)
	166	{
	167	}
	168
948408ba JR	169	static inline void debug_dma_sync_single_range_for_cpu(struct device *dev,
	170	dma_addr_t dma_handle,
	171	unsigned long offset,
	172	size_t size,
	173	int direction)
	174	{
	175	}
	176
	177	static inline void debug_dma_sync_single_range_for_device(struct device *dev,
	178	dma_addr_t dma_handle,
	179	unsigned long offset,
	180	size_t size,
	181	int direction)
	182	{
	183	}
	184
a31fba5d JR	185	static inline void debug_dma_sync_sg_for_cpu(struct device *dev,
	186	struct scatterlist *sg,
	187	int nelems, int direction)
	188	{
	189	}
	190
	191	static inline void debug_dma_sync_sg_for_device(struct device *dev,
	192	struct scatterlist *sg,
	193	int nelems, int direction)
	194	{
	195	}
	196
ac26c18b DW	197	static inline void debug_dma_dump_mappings(struct device *dev)
	198	{
	199	}
	200
0abdd7a8 DW	201	static inline void debug_dma_assert_idle(struct page *page)
	202	{
	203	}
	204
6bf07871 JR	205	#endif /* CONFIG_DMA_API_DEBUG */
6bf07871 JR	206
f2f45e5f	207	#endif /* __DMA_DEBUG_H */