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/* $Id: dmamap.h,v 1.1.1.1 2004-04-15 02:42:46 phoenix Exp $

 *

 * 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.

 *

 * Copyright (C) 1992-1997,2000-2003 Silicon Graphics, Inc. All rights reserved.

 */

#ifndef _ASM_IA64_SN_DMAMAP_H

#define _ASM_IA64_SN_DMAMAP_H

#include <asm/sn/types.h>

#ifdef __cplusplus

extern "C" {

#endif

/*

 * Definitions for allocating, freeing, and using DMA maps

 */

/*

 * DMA map types

 */

#define DMA_SCSI        0

#define DMA_A24VME      1               /* Challenge/Onyx only  */

#define DMA_A32VME      2               /* Challenge/Onyx only  */

#define DMA_A64VME      3               /* SN0/Racer */

#define DMA_EISA        4

#define DMA_PCI32       5               /* SN0/Racer    */

#define DMA_PCI64       6               /* SN0/Racer    */

/*

 * DMA map structure as returned by dma_mapalloc()

 */

typedef struct dmamap {

        int             dma_type;       /* Map type (see above) */

        int             dma_adap;       /* I/O adapter */

        int             dma_index;      /* Beginning map register to use */

        int             dma_size;       /* Number of map registers to use */

        paddr_t         dma_addr;       /* Corresponding bus addr for A24/A32 */

        unsigned long   dma_virtaddr;   /* Beginning virtual address that is mapped */

} dmamap_t;

#ifdef __cplusplus

}

#endif

/* standard flags values for pio_map routines,

 * including {xtalk,pciio}_dmamap calls.

 * NOTE: try to keep these in step with PIOMAP flags.

 */

#define DMAMAP_FIXED    0x1

#define DMAMAP_NOSLEEP  0x2

#define DMAMAP_INPLACE  0x4

#define DMAMAP_FLAGS    0x7

#endif /* _ASM_IA64_SN_DMAMAP_H */