[GitHub/mt8127/android_kernel_alcatel_ttab.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);

#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)
{
}

#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
6bf07871 JR	60	#else /* CONFIG_DMA_API_DEBUG */
	61
	62	static inline void dma_debug_init(u32 num_entries)
	63	{
	64	}
	65
f62bc980 JR	66	static inline void debug_dma_map_page(struct device dev, struct page page,
	67	size_t offset, size_t size,
	68	int direction, dma_addr_t dma_addr,
	69	bool map_single)
	70	{
	71	}
	72
	73	static inline void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
	74	size_t size, int direction,
	75	bool map_single)
	76	{
	77	}
	78
972aa45c JR	79	static inline void debug_dma_map_sg(struct device dev, struct scatterlist sg,
	80	int nents, int mapped_ents, int direction)
	81	{
	82	}
	83
	84	static inline void debug_dma_unmap_sg(struct device *dev,
	85	struct scatterlist *sglist,
	86	int nelems, int dir)
	87	{
	88	}
f62bc980	89
6bfd4498 JR	90	static inline void debug_dma_alloc_coherent(struct device *dev, size_t size,
	91	dma_addr_t dma_addr, void *virt)
	92	{
	93	}
	94
	95	static inline void debug_dma_free_coherent(struct device *dev, size_t size,
	96	void *virt, dma_addr_t addr)
	97	{
	98	}
	99
b9d2317e JR	100	static inline void debug_dma_sync_single_for_cpu(struct device *dev,
	101	dma_addr_t dma_handle,
	102	size_t size, int direction)
	103	{
	104	}
	105
	106	static inline void debug_dma_sync_single_for_device(struct device *dev,
	107	dma_addr_t dma_handle,
	108	size_t size, int direction)
	109	{
	110	}
	111
6bf07871 JR	112	#endif /* CONFIG_DMA_API_DEBUG */
6bf07871 JR	113
f2f45e5f	114	#endif /* __DMA_DEBUG_H */