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dpavlin |
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/* GXemul: $Id: ppc_bat.h,v 1.1 2005/11/17 21:26:07 debug Exp $ */ |
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/* $NetBSD: bat.h,v 1.5 2003/03/14 06:21:19 matt Exp $ */ |
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#ifndef _POWERPC_OEA_BAT_H_ |
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#define _POWERPC_OEA_BAT_H_ |
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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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* 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 the NetBSD |
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* Foundation, Inc. and its contributors. |
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* 4. Neither the name of The NetBSD Foundation nor the names of its |
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* contributors may be used to endorse or promote products derived |
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* from this software without specific prior written permission. |
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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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#if 0 |
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#ifndef _LOCORE |
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struct bat { |
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register_t batu; |
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register_t batl; |
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}; |
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#endif |
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#endif |
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/* Lower BAT bits (all but PowerPC 601): */ |
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#define BAT_RPN (~0x1ffff) /* physical block start */ |
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#define BAT_XPN 0x00000e00 /* eXtended physical page number (0-2) */ |
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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 (not on 601) */ |
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#define BAT_X 0x00000004 /* eXtended physical page number (3) */ |
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/* |
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* BAT_XPN and BAT_X are only used when HID0[XAEN] == 1 and are used |
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* to generate the 4 MSB of physical address |
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*/ |
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#define BAT_PP 0x00000003 /* PP mask */ |
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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_EPI (~0x1ffffL) /* 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_XBL 0x0001e000 /* eXtended Block Length (*) */ |
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#define BAT_XBL_512M 0x00002000 /* XBL for 512MB */ |
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#define BAT_XBL_1G 0x00006000 /* XBL for 1GB */ |
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#define BAT_XBL_2G 0x0000e000 /* XBL for 2GB */ |
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#define BAT_XBL_4G 0x0001e000 /* XBL for 4GB */ |
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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_EPI) | ((len) & BAT_BL) | ((v) & BAT_V)) |
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#define BATL(pa, wimg, pp) \ |
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(((pa) & BAT_RPN) | (wimg) | (pp)) |
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#define BAT_VA_MATCH_P(batu,va) \ |
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(((~(((batu)&BAT_BL)<<15))&(va)&BAT_EPI)==((batu)&BAT_EPI)) |
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#define BAT_PA_MATCH_P(batu,batl,pa) \ |
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(((~(((batu)&BAT_BL)<<15))&(pa)&BAT_RPN)==((batl)&BAT_RPN)) |
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#define BAT_VALID_P(batu, msr) \ |
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(((msr)&PSL_PR)?(((batu)&BAT_Vu)==BAT_Vu):(((batu)&BAT_Vs)==BAT_Vs)) |
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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 0x00000003 |
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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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#define BAT601_VA_MATCH_P(batu, batl, va) \ |
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(((~(((batl)&BAT601_BSM)<<17))&(va)&BAT601_BLPI)==((batu)&BAT601_BLPI)) |
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#define BAT601_VALID_P(batl) \ |
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((batl) & BAT601_V) |
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#ifdef _KERNEL |
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#ifndef _LOCORE |
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void oea_batinit(paddr_t, ...); |
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void oea_iobat_add(paddr_t, register_t); |
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void oea_iobat_remove(paddr_t); |
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extern struct bat battable[]; |
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#endif |
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#endif |
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#endif /* _POWERPC_OEA_BAT_H_ */ |
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