/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright (c) 1991-1994,1997-1998 by Sun Microsystems, Inc.
 * All rights reserved.
 */

#ifndef _SYS_IOCACHE_H
#define _SYS_IOCACHE_H

#pragma ident   "%Z%%M% %I%     %E% SMI"

#ifndef _ASM
#include <sys/sysiosbus.h>
#endif

#ifdef  __cplusplus
extern "C" {
#endif

#define OFF_STR_BUF_CTRL_REG    0x2800
#define STR_BUF_CTRL_REG_SIZE   (NATURAL_REG_SIZE)
#define OFF_STR_BUF_FLUSH_REG   0x2808
#define STR_BUF_FLUSH_REG_SIZE  (NATURAL_REG_SIZE)
#define OFF_STR_BUF_SYNC_REG    0x2810
#define STR_BUF_SYNC_REG_SIZE   (NATURAL_REG_SIZE)
#define STR_BUF_PAGE_TAG_DIAG   0x5800

#define STREAM_BUF_DISABLE      0x0ull
#define STREAM_BUF_ENABLE       0x1ull
#define STREAM_BUF_DIAG_ENABLE  0x2ull
#define IOCACHE_LINE_SIZE_MASK  0x3f            /* 64 byte line size */
#define STREAM_BUF_OFF          1               /* All stream bufs off */
#define STREAM_BUF_TIMEOUT      2               /* Streaming buf timed out */
#define STREAM_CACHE_LINES      16

#define STR_PG_VALID            0x2ull
#define STR_PG_SHIFT            11
#define STR_PG_MASK             0x3ffffull

#if defined(_KERNEL) && !defined(_ASM)

extern int stream_buf_init(struct sbus_soft_state *, caddr_t);
extern int stream_buf_resume_init(struct sbus_soft_state *);
extern void sync_stream_buf(struct sbus_soft_state *, uint_t, uint_t, int *,
    uint64_t);

#endif /* _KERNEL && !_ASM */

#ifdef  __cplusplus
}
#endif

#endif  /* _SYS_IOCACHE_H */