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