1 /* $NetBSD: cpu.h,v 1.78 2024/01/20 00:15:31 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1988 University of Utah. 5 * Copyright (c) 1982, 1990, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * the Systems Programming Group of the University of Utah Computer 10 * Science Department. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * from: Utah $Hdr: cpu.h 1.16 91/03/25$ 37 * 38 * @(#)cpu.h 8.4 (Berkeley) 1/5/94 39 */ 40 41 #ifndef _HP300_CPU_H_ 42 #define _HP300_CPU_H_ 43 44 #if defined(_KERNEL_OPT) 45 #include "opt_lockdebug.h" 46 #endif 47 48 /* 49 * Get common m68k CPU definitions. 50 */ 51 #include <m68k/cpu.h> 52 53 #if defined(_KERNEL) 54 /* 55 * Exported definitions unique to hp300/68k cpu support. 56 */ 57 #include <machine/hp300spu.h> 58 59 /* 60 * The rest of this should probably be moved to <machine/hp300spu.h>, 61 * although some of it could probably be put into generic 68k headers. 62 */ 63 64 extern uint8_t *intiobase, *intiolimit, *extiobase; 65 66 /* locore.s functions */ 67 void doboot(void) __attribute__((__noreturn__)); 68 void ecacheon(void); 69 void ecacheoff(void); 70 71 /* clock.c functions */ 72 void hp300_calibrate_delay(void); 73 74 /* machdep.c functions */ 75 int badaddr(void *); 76 int badbaddr(void *); 77 78 /* what is this supposed to do? i.e. how is it different than startrtclock? */ 79 #define enablertclock() 80 81 #endif /* _KERNEL */ 82 83 /* physical memory sections */ 84 #define ROMBASE (0x00000000) 85 #define INTIOBASE (0x00400000) 86 #define INTIOTOP (0x00600000) 87 #define EXTIOBASE (0x00600000) 88 #define EXTIOTOP (0x20000000) 89 #define MAXADDR ((paddr_t)(0 - NBPG)) 90 91 /* 92 * Internal IO space: 93 * 94 * Ranges from 0x400000 to 0x600000 (IIOMAPSIZE). 95 * 96 * Internal IO space is mapped in the kernel from ``intiobase'' to 97 * ``intiolimit'' (defined in locore.s). Since it is always mapped, 98 * conversion between physical and kernel virtual addresses is easy. 99 */ 100 #define ISIIOVA(va) \ 101 ((uint8_t *)(va) >= intiobase && (uint8_t *)(va) < intiolimit) 102 #define IIOV(pa) ((paddr_t)(pa)-INTIOBASE+(vaddr_t)intiobase) 103 #define IIOP(va) ((vaddr_t)(va)-(vaddr_t)intiobase+INTIOBASE) 104 #define IIOPOFF(pa) ((paddr_t)(pa)-INTIOBASE) 105 #define IIOMAPSIZE btoc(INTIOTOP-INTIOBASE) /* 2mb */ 106 107 /* 108 * External IO space: 109 * 110 * DIO ranges from select codes 0-63 at physical addresses given by: 111 * 0x600000 + (sc - 32) * 0x10000 112 * DIO cards are addressed in the range 0-31 [0x600000-0x800000) for 113 * their control space and the remaining areas, [0x200000-0x400000) and 114 * [0x800000-0x1000000), are for additional space required by a card; 115 * e.g. a display framebuffer. 116 * 117 * DIO-II ranges from select codes 132-255 at physical addresses given by: 118 * 0x1000000 + (sc - 132) * 0x400000 119 * The address range of DIO-II space is thus [0x1000000-0x20000000). 120 * 121 * DIO/DIO-II space is too large to map in its entirety, instead devices 122 * are mapped into kernel virtual address space allocated from a range 123 * of EIOMAPSIZE pages (vmparam.h) starting at ``extiobase''. 124 */ 125 #define DIOBASE (0x600000) 126 #define DIOTOP (0x1000000) 127 #define DIOCSIZE (0x10000) 128 #define DIOIIBASE (0x01000000) 129 #define DIOIITOP (0x20000000) 130 #define DIOIICSIZE (0x00400000) 131 132 /* 133 * HP MMU 134 */ 135 #define MMUBASE IIOPOFF(0x5F4000) 136 #define MMUSSTP 0x0 137 #define MMUUSTP 0x4 138 #define MMUTBINVAL 0x8 139 #define MMUSTAT 0xC 140 #define MMUCMD MMUSTAT 141 142 #define MMU_UMEN 0x0001 /* enable user mapping */ 143 #define MMU_SMEN 0x0002 /* enable supervisor mapping */ 144 #define MMU_CEN 0x0004 /* enable data cache */ 145 #define MMU_BERR 0x0008 /* bus error */ 146 #define MMU_IEN 0x0020 /* enable instruction cache */ 147 #define MMU_FPE 0x0040 /* enable 68881 FP coprocessor */ 148 #define MMU_WPF 0x2000 /* write protect fault */ 149 #define MMU_PF 0x4000 /* page fault */ 150 #define MMU_PTF 0x8000 /* page table fault */ 151 152 #define MMU_FAULT (MMU_PTF|MMU_PF|MMU_WPF|MMU_BERR) 153 #define MMU_ENAB (MMU_UMEN|MMU_SMEN|MMU_IEN|MMU_FPE) 154 155 #if defined(CACHE_HAVE_PAC) || defined(CACHE_HAVE_VAC) 156 #define M68K_CACHEOPS_MACHDEP 157 #endif 158 159 #ifdef CACHE_HAVE_PAC 160 #define M68K_CACHEOPS_MACHDEP_PCIA 161 #endif 162 163 #ifdef CACHE_HAVE_VAC 164 #define M68K_CACHEOPS_MACHDEP_DCIA 165 #define M68K_CACHEOPS_MACHDEP_DCIS 166 #define M68K_CACHEOPS_MACHDEP_DCIU 167 #define M68K_CACHEOPS_MACHDEP_TBIA 168 #define M68K_CACHEOPS_MACHDEP_TBIS 169 #define M68K_CACHEOPS_MACHDEP_TBIAS 170 #define M68K_CACHEOPS_MACHDEP_TBIAU 171 #endif 172 173 #endif /* _HP300_CPU_H_ */ 174