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/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*-
* Copyright (C) 1995, 1996 Wolfgang Solfrank.
* Copyright (C) 1995, 1996 TooLs GmbH.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by TooLs GmbH.
* 4. The name of TooLs GmbH may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $NetBSD: bat.h,v 1.2 1999/12/18 01:36:06 thorpej Exp $
* $FreeBSD: release/9.1.0/sys/powerpc/include/bat.h 139825 2005-01-07 02:29:27Z imp $
*/
#ifndef _MACHINE_BAT_H_
#define _MACHINE_BAT_H_
struct bat {
u_int32_t batu;
u_int32_t batl;
};
/* Lower BAT bits (all but PowerPC 601): */
#define BAT_PBS 0xfffe0000 /* physical block start */
#define BAT_W 0x00000040 /* 1 = write-through, 0 = write-back */
#define BAT_I 0x00000020 /* cache inhibit */
#define BAT_M 0x00000010 /* memory coherency enable */
#define BAT_G 0x00000008 /* guarded region */
#define BAT_PP_NONE 0x00000000 /* no access permission */
#define BAT_PP_RO_S 0x00000001 /* read-only (soft) */
#define BAT_PP_RW 0x00000002 /* read/write */
#define BAT_PP_RO 0x00000003 /* read-only */
/* Upper BAT bits (all but PowerPC 601): */
#define BAT_EBS 0xfffe0000 /* effective block start */
#define BAT_BL 0x00001ffc /* block length */
#define BAT_Vs 0x00000002 /* valid in supervisor mode */
#define BAT_Vu 0x00000001 /* valid in user mode */
#define BAT_V (BAT_Vs|BAT_Vu)
/* Block Length encoding (all but PowerPC 601): */
#define BAT_BL_128K 0x00000000
#define BAT_BL_256K 0x00000004
#define BAT_BL_512K 0x0000000c
#define BAT_BL_1M 0x0000001c
#define BAT_BL_2M 0x0000003c
#define BAT_BL_4M 0x0000007c
#define BAT_BL_8M 0x000000fc
#define BAT_BL_16M 0x000001fc
#define BAT_BL_32M 0x000003fc
#define BAT_BL_64M 0x000007fc
#define BAT_BL_128M 0x00000ffc
#define BAT_BL_256M 0x00001ffc
#define BATU(va, len, v) \
(((va) & BAT_EBS) | ((len) & BAT_BL) | ((v) & BAT_V))
#define BATL(pa, wimg, pp) \
(((pa) & BAT_PBS) | (wimg) | (pp))
/* Lower BAT bits (PowerPC 601): */
#define BAT601_PBN 0xfffe0000 /* physical block number */
#define BAT601_V 0x00000040 /* valid */
#define BAT601_BSM 0x0000003f /* block size mask */
/* Upper BAT bits (PowerPC 601): */
#define BAT601_BLPI 0xfffe0000 /* block logical page index */
#define BAT601_W 0x00000040 /* 1 = write-through, 0 = write-back */
#define BAT601_I 0x00000020 /* cache inhibit */
#define BAT601_M 0x00000010 /* memory coherency enable */
#define BAT601_Ks 0x00000008 /* key-supervisor */
#define BAT601_Ku 0x00000004 /* key-user */
/*
* Permission bits on the PowerPC 601 are modified by the appropriate
* Key bit:
*
* Key PP Access
* 0 NONE read/write
* 0 RO_S read/write
* 0 RW read/write
* 0 RO read-only
*
* 1 NONE none
* 1 RO_S read-only
* 1 RW read/write
* 1 RO read-only
*/
#define BAT601_PP_NONE 0x00000000 /* no access permission */
#define BAT601_PP_RO_S 0x00000001 /* read-only (soft) */
#define BAT601_PP_RW 0x00000002 /* read/write */
#define BAT601_PP_RO 0x00000003 /* read-only */
/* Block Size Mask encoding (PowerPC 601): */
#define BAT601_BSM_128K 0x00000000
#define BAT601_BSM_256K 0x00000001
#define BAT601_BSM_512K 0x00000003
#define BAT601_BSM_1M 0x00000007
#define BAT601_BSM_2M 0x0000000f
#define BAT601_BSM_4M 0x0000001f
#define BAT601_BSM_8M 0x0000003f
#define BATU601(va, wim, key, pp) \
(((va) & BAT601_BLPI) | (wim) | (key) | (pp))
#define BATL601(pa, size, v) \
(((pa) & BAT601_PBN) | (v) | (size))
#ifdef _KERNEL
extern struct bat battable[16];
#endif
#endif /* _MACHINE_BAT_H_ */