/* $NetBSD: bat.h,v 1.18 2014/07/06 08:06:03 mrg Exp $ */ /*- * 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. * * 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. */ #ifndef _POWERPC_OEA_BAT_H_ #define _POWERPC_OEA_BAT_H_ #if defined(_KERNEL) && !defined(_LOCORE) #include struct bat { register_t batu; register_t batl; } __aligned(8); #endif /* Lower BAT bits (all but PowerPC 601): */ #define BAT_RPN (~0x1ffff) /* physical block start */ #define BAT_XPN 0x00000e00 /* eXtended physical page number (0-2) */ #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 (not on 601) */ #define BAT_X 0x00000004 /* eXtended physical page number (3) */ #define BAT_WIMG 0x00000078 /* WIMG mask */ /* * BAT_XPN and BAT_X are only used when HID0[XAEN] == 1 and are used * to generate the 4 MSB of physical address */ #define BAT_PP 0x00000003 /* PP mask */ #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_EPI (~0x1ffffL) /* 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_XBL 0x0001e000 /* eXtended Block Length (*) */ #define BAT_XBL_512M 0x00002000 /* XBL for 512MB */ #define BAT_XBL_1G 0x00006000 /* XBL for 1GB */ #define BAT_XBL_2G 0x0000e000 /* XBL for 2GB */ #define BAT_XBL_4G 0x0001e000 /* XBL for 4GB */ #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 /* Extended Block Lengths (7455+) */ #define BAT_BL_512M 0x00003ffc #define BAT_BL_1G 0x00007ffc #define BAT_BL_2G 0x0000fffc #define BAT_BL_4G 0x0001fffc #define BAT_BL_TO_SIZE(bl) (((bl)+4) << 15) #define BATU(va, len, v) \ (((va) & BAT_EPI) | ((len) & (BAT_BL|BAT_XBL)) | ((v) & BAT_V)) #define BATL(pa, wimg, pp) \ (((pa) & BAT_RPN) | (wimg) | (pp)) #define BAT_VA_MATCH_P(batu,va) \ (((~(((batu)&(BAT_BL|BAT_XBL))<<15))&(va)&BAT_EPI)==((batu)&BAT_EPI)) #define BAT_PA_MATCH_P(batu,batl,pa) \ (((~(((batu)&(BAT_BL|BAT_XBL))<<15))&(pa)&BAT_RPN)==((batl)&BAT_RPN)) #define BAT_VALID_P(batu, msr) \ (((msr)&PSL_PR)?(((batu)&BAT_Vu)==BAT_Vu):(((batu)&BAT_Vs)==BAT_Vs)) /* 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 0x00000003 #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)) #define BAT601_VA_MATCH_P(batu, batl, va) \ (((~(((batl)&BAT601_BSM)<<17))&(va)&BAT601_BLPI)==((batu)&BAT601_BLPI)) #define BAT601_VALID_P(batl) \ ((batl) & BAT601_V) #define BAT_VA2IDX(va) ((va) / (8*1024*1024)) #define BAT_IDX2VA(i) ((i) * (8*1024*1024)) #if defined(_KERNEL) && !defined(_LOCORE) void oea_batinit(paddr_t, ...); void oea_iobat_add(paddr_t, register_t); void oea_iobat_remove(paddr_t); #if !defined (PPC_OEA64) extern struct bat battable[]; #endif /* PPC_OEA */ #endif #endif /* _POWERPC_OEA_BAT_H_ */