xref: /titanic_44/usr/src/uts/sun4u/sys/iocache.h (revision 7c478bd95313f5f23a4c958a745db2134aa03244)

/*
 * 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 */