include/linux/dma-debug.h


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/*
 * 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);