177957Sbenno/*- 277957Sbenno * Copyright (c) 1999 The NetBSD Foundation, Inc. 377957Sbenno * All rights reserved. 477957Sbenno * 577957Sbenno * This code is derived from software contributed to The NetBSD Foundation 677957Sbenno * by Jason R. Thorpe. 777957Sbenno * 877957Sbenno * Redistribution and use in source and binary forms, with or without 977957Sbenno * modification, are permitted provided that the following conditions 1077957Sbenno * are met: 1177957Sbenno * 1. Redistributions of source code must retain the above copyright 1277957Sbenno * notice, this list of conditions and the following disclaimer. 1377957Sbenno * 2. Redistributions in binary form must reproduce the above copyright 1477957Sbenno * notice, this list of conditions and the following disclaimer in the 1577957Sbenno * documentation and/or other materials provided with the distribution. 1677957Sbenno * 1777957Sbenno * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 1877957Sbenno * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 1977957Sbenno * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 2077957Sbenno * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 2177957Sbenno * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 2277957Sbenno * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 2377957Sbenno * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 2477957Sbenno * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 2577957Sbenno * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 2677957Sbenno * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2777957Sbenno * POSSIBILITY OF SUCH DAMAGE. 2877957Sbenno */ 2977957Sbenno 30139825Simp/*- 3177957Sbenno * Copyright (C) 1995, 1996 Wolfgang Solfrank. 3277957Sbenno * Copyright (C) 1995, 1996 TooLs GmbH. 3377957Sbenno * All rights reserved. 3477957Sbenno * 3577957Sbenno * Redistribution and use in source and binary forms, with or without 3677957Sbenno * modification, are permitted provided that the following conditions 3777957Sbenno * are met: 3877957Sbenno * 1. Redistributions of source code must retain the above copyright 3977957Sbenno * notice, this list of conditions and the following disclaimer. 4077957Sbenno * 2. Redistributions in binary form must reproduce the above copyright 4177957Sbenno * notice, this list of conditions and the following disclaimer in the 4277957Sbenno * documentation and/or other materials provided with the distribution. 4377957Sbenno * 3. All advertising materials mentioning features or use of this software 4477957Sbenno * must display the following acknowledgement: 4577957Sbenno * This product includes software developed by TooLs GmbH. 4677957Sbenno * 4. The name of TooLs GmbH may not be used to endorse or promote products 4777957Sbenno * derived from this software without specific prior written permission. 4877957Sbenno * 4977957Sbenno * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 5077957Sbenno * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 5177957Sbenno * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 5277957Sbenno * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 5377957Sbenno * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 5477957Sbenno * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 5577957Sbenno * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 5677957Sbenno * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 5777957Sbenno * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 5877957Sbenno * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 5977957Sbenno * 6077957Sbenno * $NetBSD: bat.h,v 1.2 1999/12/18 01:36:06 thorpej Exp $ 6177957Sbenno * $FreeBSD$ 6277957Sbenno */ 6377957Sbenno 6477957Sbenno#ifndef _MACHINE_BAT_H_ 6577957Sbenno#define _MACHINE_BAT_H_ 6677957Sbenno 6777957Sbennostruct bat { 6877957Sbenno u_int32_t batu; 6977957Sbenno u_int32_t batl; 7077957Sbenno}; 7177957Sbenno 7277957Sbenno/* Lower BAT bits (all but PowerPC 601): */ 7377957Sbenno#define BAT_PBS 0xfffe0000 /* physical block start */ 7477957Sbenno#define BAT_W 0x00000040 /* 1 = write-through, 0 = write-back */ 7577957Sbenno#define BAT_I 0x00000020 /* cache inhibit */ 7677957Sbenno#define BAT_M 0x00000010 /* memory coherency enable */ 7777957Sbenno#define BAT_G 0x00000008 /* guarded region */ 7877957Sbenno 7977957Sbenno#define BAT_PP_NONE 0x00000000 /* no access permission */ 8077957Sbenno#define BAT_PP_RO_S 0x00000001 /* read-only (soft) */ 8177957Sbenno#define BAT_PP_RW 0x00000002 /* read/write */ 8277957Sbenno#define BAT_PP_RO 0x00000003 /* read-only */ 8377957Sbenno 8477957Sbenno/* Upper BAT bits (all but PowerPC 601): */ 8577957Sbenno#define BAT_EBS 0xfffe0000 /* effective block start */ 8677957Sbenno#define BAT_BL 0x00001ffc /* block length */ 8777957Sbenno#define BAT_Vs 0x00000002 /* valid in supervisor mode */ 8877957Sbenno#define BAT_Vu 0x00000001 /* valid in user mode */ 8977957Sbenno 9077957Sbenno#define BAT_V (BAT_Vs|BAT_Vu) 9177957Sbenno 9277957Sbenno/* Block Length encoding (all but PowerPC 601): */ 9377957Sbenno#define BAT_BL_128K 0x00000000 9477957Sbenno#define BAT_BL_256K 0x00000004 9577957Sbenno#define BAT_BL_512K 0x0000000c 9677957Sbenno#define BAT_BL_1M 0x0000001c 9777957Sbenno#define BAT_BL_2M 0x0000003c 9877957Sbenno#define BAT_BL_4M 0x0000007c 9977957Sbenno#define BAT_BL_8M 0x000000fc 10077957Sbenno#define BAT_BL_16M 0x000001fc 10177957Sbenno#define BAT_BL_32M 0x000003fc 10277957Sbenno#define BAT_BL_64M 0x000007fc 10377957Sbenno#define BAT_BL_128M 0x00000ffc 10477957Sbenno#define BAT_BL_256M 0x00001ffc 10577957Sbenno 10677957Sbenno#define BATU(va, len, v) \ 10777957Sbenno (((va) & BAT_EBS) | ((len) & BAT_BL) | ((v) & BAT_V)) 10877957Sbenno 10977957Sbenno#define BATL(pa, wimg, pp) \ 11077957Sbenno (((pa) & BAT_PBS) | (wimg) | (pp)) 11177957Sbenno 11277957Sbenno 11377957Sbenno/* Lower BAT bits (PowerPC 601): */ 11477957Sbenno#define BAT601_PBN 0xfffe0000 /* physical block number */ 11577957Sbenno#define BAT601_V 0x00000040 /* valid */ 11677957Sbenno#define BAT601_BSM 0x0000003f /* block size mask */ 11777957Sbenno 11877957Sbenno/* Upper BAT bits (PowerPC 601): */ 11977957Sbenno#define BAT601_BLPI 0xfffe0000 /* block logical page index */ 12077957Sbenno#define BAT601_W 0x00000040 /* 1 = write-through, 0 = write-back */ 12177957Sbenno#define BAT601_I 0x00000020 /* cache inhibit */ 12277957Sbenno#define BAT601_M 0x00000010 /* memory coherency enable */ 12377957Sbenno#define BAT601_Ks 0x00000008 /* key-supervisor */ 12477957Sbenno#define BAT601_Ku 0x00000004 /* key-user */ 12577957Sbenno 12677957Sbenno/* 12777957Sbenno * Permission bits on the PowerPC 601 are modified by the appropriate 12877957Sbenno * Key bit: 12977957Sbenno * 13077957Sbenno * Key PP Access 13177957Sbenno * 0 NONE read/write 13277957Sbenno * 0 RO_S read/write 13377957Sbenno * 0 RW read/write 13477957Sbenno * 0 RO read-only 13577957Sbenno * 13677957Sbenno * 1 NONE none 13777957Sbenno * 1 RO_S read-only 13877957Sbenno * 1 RW read/write 13977957Sbenno * 1 RO read-only 14077957Sbenno */ 14177957Sbenno#define BAT601_PP_NONE 0x00000000 /* no access permission */ 14277957Sbenno#define BAT601_PP_RO_S 0x00000001 /* read-only (soft) */ 14377957Sbenno#define BAT601_PP_RW 0x00000002 /* read/write */ 14477957Sbenno#define BAT601_PP_RO 0x00000003 /* read-only */ 14577957Sbenno 14677957Sbenno/* Block Size Mask encoding (PowerPC 601): */ 14777957Sbenno#define BAT601_BSM_128K 0x00000000 14877957Sbenno#define BAT601_BSM_256K 0x00000001 14977957Sbenno#define BAT601_BSM_512K 0x00000003 15077957Sbenno#define BAT601_BSM_1M 0x00000007 15177957Sbenno#define BAT601_BSM_2M 0x0000000f 15277957Sbenno#define BAT601_BSM_4M 0x0000001f 15377957Sbenno#define BAT601_BSM_8M 0x0000003f 15477957Sbenno 15577957Sbenno#define BATU601(va, wim, key, pp) \ 15677957Sbenno (((va) & BAT601_BLPI) | (wim) | (key) | (pp)) 15777957Sbenno 15877957Sbenno#define BATL601(pa, size, v) \ 15977957Sbenno (((pa) & BAT601_PBN) | (v) | (size)) 16077957Sbenno 16177957Sbenno#ifdef _KERNEL 16277957Sbennoextern struct bat battable[16]; 16377957Sbenno#endif 16477957Sbenno 16577957Sbenno#endif /* _MACHINE_BAT_H_ */ 166