[linux-2.6-block.git] / arch / microblaze / include / asm / dma.h

/*
 * Copyright (C) 2006 Atmark Techno, Inc.
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License. See the file "COPYING" in the main directory of this archive
 * for more details.
 */

#ifndef _ASM_MICROBLAZE_DMA_H
#define _ASM_MICROBLAZE_DMA_H

#ifndef CONFIG_MMU
/* we don't have dma address limit. define it as zero to be
 * unlimited. */
#define MAX_DMA_ADDRESS		(0)
#else
/* Virtual address corresponding to last available physical memory address.  */
#define MAX_DMA_ADDRESS (CONFIG_KERNEL_START + memory_size - 1)
#endif

#ifdef CONFIG_PCI
extern int isa_dma_bridge_buggy;
#else
#define isa_dma_bridge_buggy     (0)
#endif

#endif /* _ASM_MICROBLAZE_DMA_H */
Commit	Line	Data
69b1b781 MS	1	/*
	2	* Copyright (C) 2006 Atmark Techno, Inc.
	3	*
	4	* This file is subject to the terms and conditions of the GNU General Public
	5	* License. See the file "COPYING" in the main directory of this archive
	6	* for more details.
	7	*/
	8
	9	#ifndef _ASM_MICROBLAZE_DMA_H
	10	#define _ASM_MICROBLAZE_DMA_H
	11
dcffc1b2	12	#ifndef CONFIG_MMU
69b1b781 MS	13	/* we don't have dma address limit. define it as zero to be
	14	* unlimited. */
	15	#define MAX_DMA_ADDRESS (0)
dcffc1b2 MS	16	#else
	17	/* Virtual address corresponding to last available physical memory address. */
	18	#define MAX_DMA_ADDRESS (CONFIG_KERNEL_START + memory_size - 1)
	19	#endif
69b1b781	20
113a591a MS	21	#ifdef CONFIG_PCI
	22	extern int isa_dma_bridge_buggy;
	23	#else
	24	#define isa_dma_bridge_buggy (0)
	25	#endif
	26
69b1b781	27	#endif /* _ASM_MICROBLAZE_DMA_H */