1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1988 AT&T */ 28 /* All Rights Reserved */ 29 30 #ifndef _SYS_MACHPARAM_H 31 #define _SYS_MACHPARAM_H 32 33 #pragma ident "%Z%%M% %I% %E% SMI" 34 35 #ifdef __cplusplus 36 extern "C" { 37 #endif 38 39 #ifndef _ASM 40 #define ADDRESS_C(c) c ## ul 41 #else /* _ASM */ 42 #define ADDRESS_C(c) (c) 43 #endif /* _ASM */ 44 45 /* 46 * Machine dependent parameters and limits - sun4u version. 47 */ 48 49 /* 50 * Define the VAC symbol (etc.) if we could run on a machine 51 * which has a Virtual Address Cache 52 * 53 * This stuff gotta go. 54 */ 55 #define VAC /* support virtual addressed caches */ 56 57 /* 58 * The maximum possible number of UPA devices in a system. 59 * MAX_UPA maybe defined in a platform's makefile. 60 */ 61 #ifdef _STARFIRE 62 /* 63 * We have a 7 bit id space for UPA devices in Xfire 64 */ 65 #define MAX_UPA 128 66 #else 67 #ifndef MAX_UPA 68 #define MAX_UPA 32 69 #endif 70 #endif /* _STARFIRE */ 71 72 /* 73 * Maximum cpuid value that we support. NCPU can be defined in a platform's 74 * makefile. 75 */ 76 #if (defined(_STARFIRE) && !defined(lint)) 77 #define NCPU 64 78 #else 79 #ifndef NCPU 80 #define NCPU 32 81 #endif 82 #endif /* _STARFIRE && !lint */ 83 84 /* 85 * Maximum number of processors that we support. With CMP processors, the 86 * portid may not be equal to cpuid. MAX_CPU_CHIPID can be defined in a 87 * platform's makefile. 88 */ 89 #ifndef MAX_CPU_CHIPID 90 #define MAX_CPU_CHIPID NCPU 91 #endif 92 93 /* 94 * Define the FPU symbol if we could run on a machine with an external 95 * FPU (i.e. not integrated with the normal machine state like the vax). 96 * 97 * The fpu is defined in the architecture manual, and the kernel hides 98 * its absence if it is not present, that's pretty integrated, no? 99 */ 100 101 /* 102 * MMU_PAGES* describes the physical page size used by the mapping hardware. 103 * PAGES* describes the logical page size used by the system. 104 */ 105 #define MMU_PAGE_SIZES 6 /* max sun4u mmu-supported page sizes */ 106 #define DEFAULT_MMU_PAGE_SIZES 4 /* default sun4u supported page sizes */ 107 108 /* 109 * XXX make sure the MMU_PAGESHIFT definition here is 110 * consistent with the one in param.h 111 */ 112 #define MMU_PAGESHIFT 13 113 #define MMU_PAGESIZE (1<<MMU_PAGESHIFT) 114 #define MMU_PAGEOFFSET (MMU_PAGESIZE - 1) 115 #define MMU_PAGEMASK (~MMU_PAGEOFFSET) 116 117 #define MMU_PAGESHIFT64K 16 118 #define MMU_PAGESIZE64K (1 << MMU_PAGESHIFT64K) 119 #define MMU_PAGEOFFSET64K (MMU_PAGESIZE64K - 1) 120 #define MMU_PAGEMASK64K (~MMU_PAGEOFFSET64K) 121 122 #define MMU_PAGESHIFT512K 19 123 #define MMU_PAGESIZE512K (1 << MMU_PAGESHIFT512K) 124 #define MMU_PAGEOFFSET512K (MMU_PAGESIZE512K - 1) 125 #define MMU_PAGEMASK512K (~MMU_PAGEOFFSET512K) 126 127 #define MMU_PAGESHIFT4M 22 128 #define MMU_PAGESIZE4M (1 << MMU_PAGESHIFT4M) 129 #define MMU_PAGEOFFSET4M (MMU_PAGESIZE4M - 1) 130 #define MMU_PAGEMASK4M (~MMU_PAGEOFFSET4M) 131 132 #define MMU_PAGESHIFT32M 25 133 #define MMU_PAGESIZE32M (1 << MMU_PAGESHIFT32M) 134 #define MMU_PAGEOFFSET32M (MMU_PAGESIZE32M - 1) 135 #define MMU_PAGEMASK32M (~MMU_PAGEOFFSET32M) 136 137 #define MMU_PAGESHIFT256M 28 138 #define MMU_PAGESIZE256M (1 << MMU_PAGESHIFT256M) 139 #define MMU_PAGEOFFSET256M (MMU_PAGESIZE256M - 1) 140 #define MMU_PAGEMASK256M (~MMU_PAGEOFFSET256M) 141 142 #define PAGESHIFT 13 143 #define PAGESIZE (1<<PAGESHIFT) 144 #define PAGEOFFSET (PAGESIZE - 1) 145 #define PAGEMASK (~PAGEOFFSET) 146 147 /* 148 * DATA_ALIGN is used to define the alignment of the Unix data segment. 149 */ 150 #define DATA_ALIGN ADDRESS_C(0x2000) 151 152 /* 153 * DEFAULT KERNEL THREAD stack size. 154 */ 155 156 #define DEFAULTSTKSZ (3*PAGESIZE) 157 158 /* 159 * DEFAULT initial thread stack size. 160 */ 161 #define T0STKSZ (2 * DEFAULTSTKSZ) 162 163 /* 164 * KERNELBASE is the virtual address which 165 * the kernel text/data mapping starts in all contexts. 166 */ 167 #define KERNELBASE ADDRESS_C(0x01000000) 168 169 /* 170 * Define the userlimits 171 */ 172 173 #define USERLIMIT ADDRESS_C(0xFFFFFFFF80000000) 174 #define USERLIMIT32 ADDRESS_C(0xFFC00000) 175 176 /* 177 * Define SEGKPBASE, start of the segkp segment. 178 */ 179 180 #define SEGKPBASE ADDRESS_C(0x2a100000000) 181 182 /* 183 * Define SEGMAPBASE, start of the segmap segment. 184 */ 185 186 #define SEGMAPBASE ADDRESS_C(0x2a750000000) 187 188 /* 189 * SYSBASE is the virtual address which the kernel allocated memory 190 * mapping starts in all contexts. SYSLIMIT is the end of the Sysbase segment. 191 */ 192 193 #define SYSBASE ADDRESS_C(0x30000000000) 194 #define SYSLIMIT ADDRESS_C(0x70000000000) 195 #define SYSBASE32 ADDRESS_C(0x70000000) 196 #define SYSLIMIT32 ADDRESS_C(0x80000000) 197 198 /* 199 * MEMSCRUBBASE is the base virtual address for the memory scrubber 200 * to read large pages. It MUST be 4MB page aligned. 201 */ 202 203 #define MEMSCRUBBASE 0x2a000000000 204 205 /* 206 * Define the kernel address space range allocated to Open Firmware 207 */ 208 #define OFW_START_ADDR 0xf0000000 209 #define OFW_END_ADDR 0xffffffff 210 211 /* 212 * ARGSBASE is the base virtual address of the range which 213 * the kernel uses to map the arguments for exec. 214 */ 215 #define ARGSBASE (MEMSCRUBBASE - NCARGS) 216 217 /* 218 * PPMAPBASE is the base virtual address of the range which 219 * the kernel uses to quickly map pages for operations such 220 * as ppcopy, pagecopy, pagezero, and pagesum. 221 */ 222 #define PPMAPSIZE (512 * 1024) 223 #define PPMAPBASE (ARGSBASE - PPMAPSIZE) 224 225 #define MAXPP_SLOTS ADDRESS_C(16) 226 #define PPMAP_FAST_SIZE (MAXPP_SLOTS * PAGESIZE * NCPU) 227 #define PPMAP_FAST_BASE (PPMAPBASE - PPMAP_FAST_SIZE) 228 229 /* 230 * PIOMAPBASE is the base virtual address at which programmable I/O registers 231 * are mapped. This allows such memory -- which may induce side effects when 232 * read -- to be cordoned off from the system at-large. 233 */ 234 #define PIOMAPSIZE (1024 * 1024 * 1024 * (uintptr_t)5) 235 #define PIOMAPBASE (PPMAP_FAST_BASE - PIOMAPSIZE) 236 237 /* 238 * Allocate space for kernel modules on nucleus pages 239 */ 240 #define MODDATA 1024 * 256 241 242 /* 243 * On systems with <MODTEXT_SM_SIZE MB available physical memory, 244 * cap the in-nucleus module text to MODTEXT_SM_CAP bytes. The 245 * cap must be a multiple of the base page size. Also see startup.c. 246 */ 247 #define MODTEXT_SM_CAP (0x200000) /* bytes */ 248 #define MODTEXT_SM_SIZE (256) /* MB */ 249 250 /* 251 * The heap has a region allocated from it specifically for module text that 252 * cannot fit on the nucleus page. This region -- which starts at address 253 * HEAPTEXT_BASE and runs for HEAPTEXT_SIZE bytes -- has virtual holes 254 * punched in it: for every HEAPTEXT_MAPPED bytes of available virtual, there 255 * is a virtual hole of size HEAPTEXT_UNMAPPED bytes sitting beneath it. This 256 * assures that any text address is within HEAPTEXT_MAPPED of an unmapped 257 * region. The unmapped regions themselves are managed with the routines 258 * kobj_texthole_alloc() and kobj_texthole_free(). 259 */ 260 #define HEAPTEXT_SIZE (128 * 1024 * 1024) /* bytes */ 261 #define HEAPTEXT_OVERSIZE (64 * 1024 * 1024) /* bytes */ 262 #define HEAPTEXT_BASE (SYSLIMIT32 - HEAPTEXT_SIZE) 263 #define HEAPTEXT_MAPPED (2 * 1024 * 1024) 264 #define HEAPTEXT_UNMAPPED (2 * 1024 * 1024) 265 266 #define HEAPTEXT_NARENAS \ 267 (HEAPTEXT_SIZE / (HEAPTEXT_MAPPED + HEAPTEXT_UNMAPPED) + 2) 268 269 /* 270 * Preallocate an area for setting up the user stack during 271 * the exec(). This way we have a faster allocator and also 272 * make sure the stack is always VAC aligned correctly. see 273 * get_arg_base() in startup.c. 274 */ 275 #define ARG_SLOT_SIZE (0x8000) 276 #define ARG_SLOT_SHIFT (15) 277 #define N_ARG_SLOT (0x80) 278 279 #define NARG_BASE (PIOMAPBASE - (ARG_SLOT_SIZE * N_ARG_SLOT)) 280 281 /* 282 * ktextseg+kvalloc should not use space beyond KERNEL_LIMIT32. 283 */ 284 285 /* 286 * For 64-bit kernels, rename KERNEL_LIMIT to KERNEL_LIMIT32 to more accurately 287 * reflect the fact that it's actually the limit for 32-bit kernel virtual 288 * addresses. 289 */ 290 #define KERNEL_LIMIT32 (SYSBASE32) 291 292 #define PFN_TO_BUSTYPE(pfn) (((pfn) >> 19) & 0x1FF) 293 #define BUSTYPE_TO_PFN(btype, pfn) \ 294 (((btype) << 19) | ((pfn) & 0x7FFFF)) 295 #define IO_BUSTYPE(pfn) ((PFN_TO_BUSTYPE(pfn) & 0x100) >> 8) 296 297 #ifdef _STARFIRE 298 #define PFN_TO_UPAID(pfn) BUSTYPE_TO_UPAID(PFN_TO_BUSTYPE(pfn)) 299 #else 300 #define PFN_TO_UPAID(pfn) (((pfn) >> 20) & 0x1F) 301 #endif /* _STARFIRE */ 302 303 /* 304 * Defines used for the ptl1_panic parameter, which is passed to the 305 * ptl1_panic assembly routine in %g1. These #defines have string 306 * names defined in sun4u/os/mach_cpu_states.c which should be kept up to 307 * date if new #defines are added. 308 */ 309 #define PTL1_BAD_DEBUG 0 310 #define PTL1_BAD_WTRAP 1 311 #define PTL1_BAD_KMISS 2 312 #define PTL1_BAD_KPROT_FAULT 3 313 #define PTL1_BAD_ISM 4 314 #define PTL1_BAD_MMUTRAP 5 315 #define PTL1_BAD_TRAP 6 316 #define PTL1_BAD_FPTRAP 7 317 #define PTL1_BAD_INTR_REQ 8 318 #define PTL1_BAD_TRACE_PTR 9 319 #define PTL1_BAD_STACK 10 320 #define PTL1_BAD_DTRACE_FLAGS 11 321 #define PTL1_BAD_CTX_STEAL 12 322 #define PTL1_BAD_ECC 13 323 #define PTL1_BAD_CTX 14 324 325 /* 326 * Defines used for ptl1 related data structs. 327 */ 328 #define PTL1_MAXTL 4 329 #define PTL1_DEBUG_TRAP 0x7C 330 #define PTL1_SSIZE 1024 /* minimum stack size */ 331 #define CPU_ALLOC_SIZE MMU_PAGESIZE 332 333 #ifdef __cplusplus 334 } 335 #endif 336 337 #endif /* _SYS_MACHPARAM_H */ 338