1 /* $NetBSD: param.h,v 1.25 1996/08/28 03:01:27 mrg Exp $ */ 2 3 /* 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This software was developed by the Computer Systems Engineering group 8 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 9 * contributed to Berkeley. 10 * 11 * All advertising materials mentioning features or use of this software 12 * must display the following acknowledgement: 13 * This product includes software developed by the University of 14 * California, Lawrence Berkeley Laboratory. 15 * 16 * Redistribution and use in source and binary forms, with or without 17 * modification, are permitted provided that the following conditions 18 * are met: 19 * 1. Redistributions of source code must retain the above copyright 20 * notice, this list of conditions and the following disclaimer. 21 * 2. Redistributions in binary form must reproduce the above copyright 22 * notice, this list of conditions and the following disclaimer in the 23 * documentation and/or other materials provided with the distribution. 24 * 3. All advertising materials mentioning features or use of this software 25 * must display the following acknowledgement: 26 * This product includes software developed by the University of 27 * California, Berkeley and its contributors. 28 * 4. Neither the name of the University nor the names of its contributors 29 * may be used to endorse or promote products derived from this software 30 * without specific prior written permission. 31 * 32 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 33 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 34 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 35 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 36 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 37 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 38 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 40 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 41 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 42 * SUCH DAMAGE. 43 * 44 * @(#)param.h 8.1 (Berkeley) 6/11/93 45 */ 46 /* 47 * Sun4M support by Aaron Brown, Harvard University. 48 * Changes Copyright (c) 1995 The President and Fellows of Harvard College. 49 * All rights reserved. 50 */ 51 #define _MACHINE sparc 52 #define MACHINE "sparc" 53 #define _MACHINE_ARCH sparc 54 #define MACHINE_ARCH "sparc" 55 #define MID_MACHINE MID_SPARC 56 57 #ifdef _KERNEL /* XXX */ 58 #ifndef _LOCORE /* XXX */ 59 #include <machine/cpu.h> /* XXX */ 60 #endif /* XXX */ 61 #endif /* XXX */ 62 63 /* 64 * Round p (pointer or byte index) up to a correctly-aligned value for 65 * the machine's strictest data type. The result is u_int and must be 66 * cast to any desired pointer type. 67 */ 68 #define ALIGNBYTES 7 69 #define ALIGN(p) (((u_int)(p) + ALIGNBYTES) & ~ALIGNBYTES) 70 71 #define SUN4_PGSHIFT 13 /* for a sun4 machine */ 72 #define SUN4CM_PGSHIFT 12 /* for a sun4c or sun4m machine */ 73 74 /* 75 * Three possible cases: 76 * sun4 only 8192 bytes/page 77 * sun4c/sun4m only 4096 bytes/page 78 * any machine either of the above 79 * 80 * In the later case NBPG, PGOFSET, and PGSHIFT are encoded in variables 81 * initialized early in locore.s. Since they are variables, rather than 82 * simple constants, the kernel will perform slighly worse. 83 */ 84 #if defined(SUN4) && !defined(SUN4C) && !defined(SUN4M) 85 # define NBPG 8192 /* bytes/page */ 86 # define PGOFSET (NBPG-1) /* byte offset into page */ 87 # define PGSHIFT SUN4_PGSHIFT /* log2(NBPG) */ 88 #else 89 # if !defined(SUN4) && (defined(SUN4C) || defined(SUN4M)) 90 # define NBPG 4096 /* bytes/page */ 91 # define PGOFSET (NBPG-1) /* byte offset into page */ 92 # define PGSHIFT SUN4CM_PGSHIFT /* log2(NBPG) */ 93 # else 94 # define NBPG nbpg /* bytes/page */ 95 # define PGOFSET pgofset /* byte offset into page */ 96 # define PGSHIFT pgshift /* log2(NBPG) */ 97 # endif 98 #endif 99 100 #if defined(_KERNEL) && !defined(_LOCORE) 101 extern int nbpg, pgofset, pgshift; 102 #endif 103 104 #define KERNBASE 0xf8000000 /* start of kernel virtual space */ 105 #define KERNTEXTOFF 0xf8004000 /* start of kernel text */ 106 107 #define DEV_BSIZE 512 108 #define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */ 109 #define BLKDEV_IOSIZE 2048 110 #define MAXPHYS (64 * 1024) 111 112 #define CLSIZE 1 113 #define CLSIZELOG2 0 114 115 /* NOTE: SSIZE must be multiple of CLSIZE */ 116 #define SSIZE 1 /* initial stack size in pages */ 117 #define USPACE 8192 118 119 /* 120 * Constants related to network buffer management. 121 * MCLBYTES must be no larger than CLBYTES (the software page size), and, 122 * on machines that exchange pages of input or output buffers with mbuf 123 * clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple 124 * of the hardware page size. 125 */ 126 #define MSIZE 128 /* size of an mbuf */ 127 #define MCLBYTES 2048 /* enough for whole Ethernet packet */ 128 #define MCLSHIFT 11 /* log2(MCLBYTES) */ 129 #define MCLOFSET (MCLBYTES - 1) 130 131 #ifndef NMBCLUSTERS 132 #ifdef GATEWAY 133 #define NMBCLUSTERS 512 /* map size, max cluster allocation */ 134 #else 135 #define NMBCLUSTERS 256 /* map size, max cluster allocation */ 136 #endif 137 #endif 138 139 /* 140 * Size of kernel malloc arena in CLBYTES-sized logical pages. 141 */ 142 #ifndef NKMEMCLUSTERS 143 #define NKMEMCLUSTERS (6 * 1024 * 1024 / CLBYTES) 144 #endif 145 146 /* pages ("clicks") to disk blocks */ 147 #define ctod(x) ((x) << (PGSHIFT - DEV_BSHIFT)) 148 #define dtoc(x) ((x) >> (PGSHIFT - DEV_BSHIFT)) 149 150 /* pages to bytes */ 151 #define ctob(x) ((x) << PGSHIFT) 152 #define btoc(x) (((x) + PGOFSET) >> PGSHIFT) 153 154 /* bytes to disk blocks */ 155 #define btodb(x) ((x) >> DEV_BSHIFT) 156 #define dbtob(x) ((x) << DEV_BSHIFT) 157 158 /* 159 * Map a ``block device block'' to a file system block. 160 * This should be device dependent, and should use the bsize 161 * field from the disk label. 162 * For now though just use DEV_BSIZE. 163 */ 164 #define bdbtofsb(bn) ((bn) / (BLKDEV_IOSIZE / DEV_BSIZE)) 165 166 /* 167 * dvmamap manages a range of DVMA addresses intended to create double 168 * mappings of physical memory. In a way, `dvmamap' is a submap of the 169 * VM map `phys_map'. The difference is the use of the `resource map' 170 * routines to manage page allocation, allowing DVMA addresses to be 171 * allocated and freed from within interrupt routines. 172 * 173 * Note that `phys_map' can still be used to allocate memory-backed pages 174 * in DVMA space. 175 */ 176 #ifdef _KERNEL 177 #ifndef _LOCORE 178 extern vm_offset_t dvma_base; 179 extern vm_offset_t dvma_end; 180 extern struct map *dvmamap; 181 /* 182 * The dvma resource map is defined in page units, which are numbered 1 to N. 183 * Use these macros to convert to/from virtual addresses. 184 */ 185 #define rctov(n) (ctob(((n)-1))+dvma_base) 186 #define vtorc(v) ((btoc((v)-dvma_base))+1) 187 188 extern caddr_t kdvma_mapin __P((caddr_t, int, int)); 189 extern caddr_t dvma_malloc __P((size_t, void *, int)); 190 extern void dvma_free __P((caddr_t, size_t, void *)); 191 192 extern void delay __P((unsigned int)); 193 #define DELAY(n) delay(n) 194 195 extern int cputyp; 196 extern int cpumod; 197 extern int mmumod; 198 199 #endif /* _LOCORE */ 200 #endif /* _KERNEL */ 201 202 /* 203 * Values for the cputyp variable. 204 */ 205 #define CPU_SUN4 0 206 #define CPU_SUN4C 1 207 #define CPU_SUN4M 2 208 /* 209 * Values for cpumod (cpu model) variable. XXX currently valid only for sun4 210 * or Sun4M 211 */ 212 #define SUN4_100 0x22 213 #define SUN4_200 0x21 214 #define SUN4_300 0x23 215 #define SUN4_400 0x24 216 #define SUN4M_MS 0x04 /* MicroSPARC-II */ 217 #define SUN4M_SS 0x40 /* Generic SuperSPARC */ 218 #define SUN4M_HS 0x10 /* Generic ROSS sparc product (HyperSPARC) */ 219 #define SUN4M_RT620 0x1f /* Ross HyperSPARC RT620 */ 220 #define SUN4M_STP1020N 0x41 /* TI SuperSPARC STP1020N */ 221 #define SUN4M_STP1020P 0x40 /* TI SuperSPARC STP1020P */ 222 #define SUN4M_STP1020A 0x40 /* TI SuperSPARC STP1020A */ 223 224 /* Values for mmumod (mmu model) variable. Valid only for Sun4M */ 225 #define SUN4M_MMU_HS 0x1 /* ROSS HyperSparc */ 226 #define SUN4M_MMU_SS 0x0 /* TI SuperSPARC */ 227 #define SUN4M_MMU_MS1 0x4 /* MicroSPARC-I (??? XXX) */ 228 #define SUN4M_MMU_MS 0x0 /* MicroSPARC-II (ugh, conflicts w/SS) */ 229 230 /* 231 * Shorthand CPU-type macros. Enumerate all eight cases. 232 * Let compiler optimize away code conditional on constants. 233 */ 234 #if defined(SUN4M) && defined(SUN4C) && defined(SUN4) 235 # define CPU_ISSUN4M (cputyp == CPU_SUN4M) 236 # define CPU_ISSUN4C (cputyp == CPU_SUN4C) 237 # define CPU_ISSUN4 (cputyp == CPU_SUN4) 238 # define CPU_ISSUN4OR4C (cputyp == CPU_SUN4 || cputyp == CPU_SUN4C) 239 # define CPU_ISSUN4COR4M (cputyp == CPU_SUN4C || cputyp == CPU_SUN4M) 240 #elif defined(SUN4M) && defined(SUN4C) && !defined(SUN4) 241 # define CPU_ISSUN4M (cputyp == CPU_SUN4M) 242 # define CPU_ISSUN4C (cputyp == CPU_SUN4C) 243 # define CPU_ISSUN4 (0) 244 # define CPU_ISSUN4OR4C (cputyp == CPU_SUN4C) 245 # define CPU_ISSUN4COR4M (cputyp == CPU_SUN4C || cputyp == CPU_SUN4M) 246 #elif defined(SUN4M) && !defined(SUN4C) && defined(SUN4) 247 # define CPU_ISSUN4M (cputyp == CPU_SUN4M) 248 # define CPU_ISSUN4C (0) 249 # define CPU_ISSUN4 (cputyp == CPU_SUN4) 250 # define CPU_ISSUN4OR4C (cputyp == CPU_SUN4) 251 # define CPU_ISSUN4COR4M (cputyp == CPU_SUN4M) 252 #elif defined(SUN4M) && !defined(SUN4C) && !defined(SUN4) 253 # define CPU_ISSUN4M (1) 254 # define CPU_ISSUN4C (0) 255 # define CPU_ISSUN4 (0) 256 # define CPU_ISSUN4OR4C (0) 257 # define CPU_ISSUN4COR4M (1) 258 #elif !defined(SUN4M) && defined(SUN4C) && defined(SUN4) 259 # define CPU_ISSUN4M (0) 260 # define CPU_ISSUN4C (cputyp == CPU_SUN4C) 261 # define CPU_ISSUN4 (cputyp == CPU_SUN4) 262 # define CPU_ISSUN4OR4C (1) 263 # define CPU_ISSUN4COR4M (cputyp == CPU_SUN4C) 264 #elif !defined(SUN4M) && defined(SUN4C) && !defined(SUN4) 265 # define CPU_ISSUN4M (0) 266 # define CPU_ISSUN4C (1) 267 # define CPU_ISSUN4 (0) 268 # define CPU_ISSUN4OR4C (1) 269 # define CPU_ISSUN4COR4M (1) 270 #elif !defined(SUN4M) && !defined(SUN4C) && defined(SUN4) 271 # define CPU_ISSUN4M (0) 272 # define CPU_ISSUN4C (0) 273 # define CPU_ISSUN4 (1) 274 # define CPU_ISSUN4OR4C (1) 275 # define CPU_ISSUN4COR4M (0) 276 #elif !defined(SUN4M) && !defined(SUN4C) && !defined(SUN4) 277 # define CPU_ISSUN4M (0) 278 # define CPU_ISSUN4C (0) 279 # define CPU_ISSUN4 (0) 280 # define CPU_ISSUN4OR4C (0) 281 # define CPU_ISSUN4COR4M (0) 282 #endif 283