tioce_provider.h

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/*
 * 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) 2003-2005 Silicon Graphics, Inc. All rights reserved.
 */

#ifndef _ASM_IA64_SN_CE_PROVIDER_H
#define _ASM_IA64_SN_CE_PROVIDER_H

#include <asm/sn/pcibus_provider_defs.h>
#include <asm/sn/tioce.h>

/*
 * Common TIOCE structure shared between the prom and kernel
 *
 * DO NOT CHANGE THIS STRUCT WITHOUT MAKING CORRESPONDING CHANGES TO THE
 * PROM VERSION.
 */
struct tioce_common {
    struct pcibus_bussoft   ce_pcibus;  /* common pciio header */

    u32     ce_rev;
    u64     ce_kernel_private;
    u64     ce_prom_private;
};

struct tioce_kernel {
    struct tioce_common *ce_common;
    spinlock_t      ce_lock;
    struct list_head    ce_dmamap_list;

    u64     ce_ate40_shadow[TIOCE_NUM_M40_ATES];
    u64     ce_ate3240_shadow[TIOCE_NUM_M3240_ATES];
    u32     ce_ate3240_pagesize;

    u8          ce_port1_secondary;

    /* per-port resources */
    struct {
        int         dirmap_refcnt;
        u64 dirmap_shadow;
    } ce_port[TIOCE_NUM_PORTS];
};

struct tioce_dmamap {
    struct list_head    ce_dmamap_list; /* headed by tioce_kernel */
    u32     refcnt;

    u64     nbytes;     /* # bytes mapped */

    u64     ct_start;   /* coretalk start address */
    u64     pci_start;  /* bus start address */

    u64     __iomem *ate_hw;/* hw ptr of first ate in map */
    u64     *ate_shadow;    /* shadow ptr of firat ate */
    u16     ate_count;  /* # ate's in the map */
};

extern int tioce_init_provider(void);

#endif  /* __ASM_IA64_SN_CE_PROVIDER_H */