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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 /* Copyright (c) 1988 AT&T */ 27 /* All Rights Reserved */ 28 29 #ifndef _SYS_MACHPARAM_H 30 #define _SYS_MACHPARAM_H 31 32 #pragma ident "%Z%%M% %I% %E% SMI" 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 #ifndef _ASM 39 #define ADDRESS_C(c) c ## ul 40 #else /* _ASM */ 41 #define ADDRESS_C(c) (c) 42 #endif /* _ASM */ 43 44 /* 45 * Machine dependent parameters and limits - sun4u version. 46 */ 47 48 /* 49 * Define the VAC symbol (etc.) if we could run on a machine 50 * which has a Virtual Address Cache 51 * 52 * This stuff gotta go. 53 */ 54 #define VAC /* support virtual addressed caches */ 55 56 /* 57 * The maximum possible number of UPA devices in a system. 58 * MAX_UPA maybe defined in a platform's makefile. 59 */ 60 #ifdef _STARFIRE 61 /* 62 * We have a 7 bit id space for UPA devices in Xfire 63 */ 64 #define MAX_UPA 128 65 #else 66 #ifndef MAX_UPA 67 #define MAX_UPA 32 68 #endif 69 #endif /* _STARFIRE */ 70 71 /* 72 * Maximum cpuid value that we support. NCPU can be defined in a platform's 73 * makefile. 74 */ 75 #if (defined(_STARFIRE) && !defined(lint)) 76 #define NCPU 64 77 #else 78 #ifndef NCPU 79 #define NCPU 32 80 #endif 81 #endif /* _STARFIRE && !lint */ 82 83 /* 84 * Maximum number of processors that we support. With CMP processors, the 85 * portid may not be equal to cpuid. MAX_CPU_CHIPID can be defined in a 86 * platform's makefile. 87 */ 88 #ifndef MAX_CPU_CHIPID 89 #define MAX_CPU_CHIPID NCPU 90 #endif 91 92 /* 93 * Define the FPU symbol if we could run on a machine with an external 94 * FPU (i.e. not integrated with the normal machine state like the vax). 95 * 96 * The fpu is defined in the architecture manual, and the kernel hides 97 * its absence if it is not present, that's pretty integrated, no? 98 */ 99 100 /* 101 * MMU_PAGES* describes the physical page size used by the mapping hardware. 102 * PAGES* describes the logical page size used by the system. 103 */ 104 #define MMU_PAGE_SIZES 6 /* max sun4u mmu-supported page sizes */ 105 #define DEFAULT_MMU_PAGE_SIZES 4 /* default sun4u supported page sizes */ 106 107 /* 108 * XXX make sure the MMU_PAGESHIFT definition here is 109 * consistent with the one in param.h 110 */ 111 #define MMU_PAGESHIFT 13 112 #define MMU_PAGESIZE (1<<MMU_PAGESHIFT) 113 #define MMU_PAGEOFFSET (MMU_PAGESIZE - 1) 114 #define MMU_PAGEMASK (~MMU_PAGEOFFSET) 115 116 #define MMU_PAGESHIFT64K 16 117 #define MMU_PAGESIZE64K (1 << MMU_PAGESHIFT64K) 118 #define MMU_PAGEOFFSET64K (MMU_PAGESIZE64K - 1) 119 #define MMU_PAGEMASK64K (~MMU_PAGEOFFSET64K) 120 121 #define MMU_PAGESHIFT512K 19 122 #define MMU_PAGESIZE512K (1 << MMU_PAGESHIFT512K) 123 #define MMU_PAGEOFFSET512K (MMU_PAGESIZE512K - 1) 124 #define MMU_PAGEMASK512K (~MMU_PAGEOFFSET512K) 125 126 #define MMU_PAGESHIFT4M 22 127 #define MMU_PAGESIZE4M (1 << MMU_PAGESHIFT4M) 128 #define MMU_PAGEOFFSET4M (MMU_PAGESIZE4M - 1) 129 #define MMU_PAGEMASK4M (~MMU_PAGEOFFSET4M) 130 131 #define MMU_PAGESHIFT32M 25 132 #define MMU_PAGESIZE32M (1 << MMU_PAGESHIFT32M) 133 #define MMU_PAGEOFFSET32M (MMU_PAGESIZE32M - 1) 134 #define MMU_PAGEMASK32M (~MMU_PAGEOFFSET32M) 135 136 #define MMU_PAGESHIFT256M 28 137 #define MMU_PAGESIZE256M (1 << MMU_PAGESHIFT256M) 138 #define MMU_PAGEOFFSET256M (MMU_PAGESIZE256M - 1) 139 #define MMU_PAGEMASK256M (~MMU_PAGEOFFSET256M) 140 141 #define PAGESHIFT 13 142 #define PAGESIZE (1<<PAGESHIFT) 143 #define PAGEOFFSET (PAGESIZE - 1) 144 #define PAGEMASK (~PAGEOFFSET) 145 146 /* 147 * DATA_ALIGN is used to define the alignment of the Unix data segment. 148 */ 149 #define DATA_ALIGN ADDRESS_C(0x2000) 150 151 /* 152 * DEFAULT KERNEL THREAD stack size. 153 */ 154 155 #define DEFAULTSTKSZ (3*PAGESIZE) 156 157 /* 158 * DEFAULT initial thread stack size. 159 */ 160 #define T0STKSZ (2 * DEFAULTSTKSZ) 161 162 /* 163 * KERNELBASE is the virtual address which 164 * the kernel text/data mapping starts in all contexts. 165 */ 166 #define KERNELBASE ADDRESS_C(0x01000000) 167 168 /* 169 * Define the userlimits 170 */ 171 172 #define USERLIMIT ADDRESS_C(0xFFFFFFFF80000000) 173 #define USERLIMIT32 ADDRESS_C(0xFFC00000) 174 175 /* 176 * Define SEGKPBASE, start of the segkp segment. 177 */ 178 179 #define SEGKPBASE ADDRESS_C(0x2a100000000) 180 181 /* 182 * Define SEGMAPBASE, start of the segmap segment. 183 */ 184 185 #define SEGMAPBASE ADDRESS_C(0x2a750000000) 186 187 /* 188 * SYSBASE is the virtual address which the kernel allocated memory 189 * mapping starts in all contexts. SYSLIMIT is the end of the Sysbase segment. 190 */ 191 192 #define SYSBASE ADDRESS_C(0x30000000000) 193 #define SYSLIMIT ADDRESS_C(0x70000000000) 194 #define SYSBASE32 ADDRESS_C(0x70000000) 195 #define SYSLIMIT32 ADDRESS_C(0x80000000) 196 197 /* 198 * MEMSCRUBBASE is the base virtual address for the memory scrubber 199 * to read large pages. It MUST be 4MB page aligned. 200 */ 201 202 #define MEMSCRUBBASE 0x2a000000000 203 204 /* 205 * Define the kernel address space range allocated to Open Firmware 206 */ 207 #define OFW_START_ADDR 0xf0000000 208 #define OFW_END_ADDR 0xffffffff 209 210 /* 211 * ARGSBASE is the base virtual address of the range which 212 * the kernel uses to map the arguments for exec. 213 */ 214 #define ARGSBASE (MEMSCRUBBASE - NCARGS) 215 216 /* 217 * PPMAPBASE is the base virtual address of the range which 218 * the kernel uses to quickly map pages for operations such 219 * as ppcopy, pagecopy, pagezero, and pagesum. 220 */ 221 #define PPMAPSIZE (512 * 1024) 222 #define PPMAPBASE (ARGSBASE - PPMAPSIZE) 223 224 #define MAXPP_SLOTS ADDRESS_C(16) 225 #define PPMAP_FAST_SIZE (MAXPP_SLOTS * PAGESIZE * NCPU) 226 #define PPMAP_FAST_BASE (PPMAPBASE - PPMAP_FAST_SIZE) 227 228 /* 229 * PIOMAPBASE is the base virtual address at which programmable I/O registers 230 * are mapped. This allows such memory -- which may induce side effects when 231 * read -- to be cordoned off from the system at-large. 232 */ 233 #define PIOMAPSIZE (1024 * 1024 * 1024 * (uintptr_t)5) 234 #define PIOMAPBASE (PPMAP_FAST_BASE - PIOMAPSIZE) 235 236 /* 237 * Allocate space for kernel modules on nucleus pages 238 */ 239 #define MODDATA 1024 * 256 240 241 /* 242 * On systems with <MODTEXT_SM_SIZE MB available physical memory, 243 * cap the in-nucleus module text to MODTEXT_SM_CAP bytes. The 244 * cap must be a multiple of the base page size. Also see startup.c. 245 */ 246 #define MODTEXT_SM_CAP (0x200000) /* bytes */ 247 #define MODTEXT_SM_SIZE (256) /* MB */ 248 249 /* 250 * The heap has a region allocated from it specifically for module text that 251 * cannot fit on the nucleus page. This region -- which starts at address 252 * HEAPTEXT_BASE and runs for HEAPTEXT_SIZE bytes -- has virtual holes 253 * punched in it: for every HEAPTEXT_MAPPED bytes of available virtual, there 254 * is a virtual hole of size HEAPTEXT_UNMAPPED bytes sitting beneath it. This 255 * assures that any text address is within HEAPTEXT_MAPPED of an unmapped 256 * region. The unmapped regions themselves are managed with the routines 257 * kobj_texthole_alloc() and kobj_texthole_free(). 258 */ 259 #define HEAPTEXT_SIZE (128 * 1024 * 1024) /* bytes */ 260 #define HEAPTEXT_OVERSIZE (64 * 1024 * 1024) /* bytes */ 261 #define HEAPTEXT_BASE (SYSLIMIT32 - HEAPTEXT_SIZE) 262 #define HEAPTEXT_MAPPED (2 * 1024 * 1024) 263 #define HEAPTEXT_UNMAPPED (2 * 1024 * 1024) 264 265 #define HEAPTEXT_NARENAS \ 266 (HEAPTEXT_SIZE / (HEAPTEXT_MAPPED + HEAPTEXT_UNMAPPED) + 2) 267 268 /* 269 * Preallocate an area for setting up the user stack during 270 * the exec(). This way we have a faster allocator and also 271 * make sure the stack is always VAC aligned correctly. see 272 * get_arg_base() in startup.c. 273 */ 274 #define ARG_SLOT_SIZE (0x8000) 275 #define ARG_SLOT_SHIFT (15) 276 #define N_ARG_SLOT (0x80) 277 278 #define NARG_BASE (PIOMAPBASE - (ARG_SLOT_SIZE * N_ARG_SLOT)) 279 280 /* 281 * ktextseg+kvalloc should not use space beyond KERNEL_LIMIT32. 282 */ 283 284 /* 285 * For 64-bit kernels, rename KERNEL_LIMIT to KERNEL_LIMIT32 to more accurately 286 * reflect the fact that it's actually the limit for 32-bit kernel virtual 287 * addresses. 288 */ 289 #define KERNEL_LIMIT32 (SYSBASE32) 290 291 #define PFN_TO_BUSTYPE(pfn) (((pfn) >> 19) & 0x1FF) 292 #define BUSTYPE_TO_PFN(btype, pfn) \ 293 (((pfn_t)(btype) << 19) | ((pfn) & 0x7FFFF)) 294 #define IO_BUSTYPE(pfn) ((PFN_TO_BUSTYPE(pfn) & 0x100) >> 8) 295 296 #ifdef _STARFIRE 297 #define PFN_TO_UPAID(pfn) BUSTYPE_TO_UPAID(PFN_TO_BUSTYPE(pfn)) 298 #else 299 #define PFN_TO_UPAID(pfn) (((pfn) >> 20) & 0x1F) 300 #endif /* _STARFIRE */ 301 302 /* 303 * Defines used for the ptl1_panic parameter, which is passed to the 304 * ptl1_panic assembly routine in %g1. These #defines have string 305 * names defined in sun4u/os/mach_cpu_states.c which should be kept up to 306 * date if new #defines are added. 307 */ 308 #define PTL1_BAD_DEBUG 0 309 #define PTL1_BAD_WTRAP 1 310 #define PTL1_BAD_KMISS 2 311 #define PTL1_BAD_KPROT_FAULT 3 312 #define PTL1_BAD_ISM 4 313 #define PTL1_BAD_MMUTRAP 5 314 #define PTL1_BAD_TRAP 6 315 #define PTL1_BAD_FPTRAP 7 316 #define PTL1_BAD_INTR_REQ 8 317 #define PTL1_BAD_TRACE_PTR 9 318 #define PTL1_BAD_STACK 10 319 #define PTL1_BAD_DTRACE_FLAGS 11 320 #define PTL1_BAD_CTX_STEAL 12 321 #define PTL1_BAD_ECC 13 322 #define PTL1_BAD_CTX 14 323 #define PTL1_BAD_RAISE_TSBEXCP 20 324 325 /* 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