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 (c) 1993, 2010, Oracle and/or its affiliates. All rights reserved. 23 */ 24 25 /* Copyright (c) 1988 AT&T */ 26 /* All Rights Reserved */ 27 28 #ifndef _SYS_MACHPARAM_H 29 #define _SYS_MACHPARAM_H 30 31 #ifdef __cplusplus 32 extern "C" { 33 #endif 34 35 #ifndef _ASM 36 #define ADDRESS_C(c) c ## ul 37 #else /* _ASM */ 38 #define ADDRESS_C(c) (c) 39 #endif /* _ASM */ 40 41 /* 42 * Machine dependent parameters and limits - sun4u version. 43 */ 44 45 /* 46 * Define the VAC symbol (etc.) if we could run on a machine 47 * which has a Virtual Address Cache 48 * 49 * This stuff gotta go. 50 */ 51 #define VAC /* support virtual addressed caches */ 52 53 /* 54 * The maximum possible number of UPA devices in a system. 55 * MAX_UPA maybe defined in a platform's makefile. 56 */ 57 #ifdef _STARFIRE 58 /* 59 * We have a 7 bit id space for UPA devices in Xfire 60 */ 61 #define MAX_UPA 128 62 #else 63 #ifndef MAX_UPA 64 #define MAX_UPA 32 65 #endif 66 #endif /* _STARFIRE */ 67 68 /* 69 * Maximum cpuid value that we support. NCPU can be defined in a platform's 70 * makefile. 71 */ 72 #if (defined(_STARFIRE) && !defined(lint)) 73 #define NCPU 64 74 #else 75 #ifndef NCPU 76 #define NCPU 32 77 #endif 78 #endif /* _STARFIRE && !lint */ 79 80 #if (NCPU <= 1) 81 #define NCPU_LOG2 0 82 #elif (NCPU <= 2) 83 #define NCPU_LOG2 1 84 #elif (NCPU <= 4) 85 #define NCPU_LOG2 2 86 #elif (NCPU <= 8) 87 #define NCPU_LOG2 3 88 #elif (NCPU <= 16) 89 #define NCPU_LOG2 4 90 #elif (NCPU <= 32) 91 #define NCPU_LOG2 5 92 #elif (NCPU <= 64) 93 #define NCPU_LOG2 6 94 #elif (NCPU <= 128) 95 #define NCPU_LOG2 7 96 #elif (NCPU <= 256) 97 #define NCPU_LOG2 8 98 #elif (NCPU <= 512) 99 #define NCPU_LOG2 9 100 #elif (NCPU <= 1024) 101 #define NCPU_LOG2 10 102 #else 103 #error "add test for larger NCPU" 104 #endif 105 106 /* NCPU_P2 is NCPU rounded to a power of 2 */ 107 #define NCPU_P2 (1 << NCPU_LOG2) 108 109 /* 110 * Maximum number of processors that we support. With CMP processors, the 111 * portid may not be equal to cpuid. MAX_CPU_CHIPID can be defined in a 112 * platform's makefile. 113 */ 114 #ifndef MAX_CPU_CHIPID 115 #define MAX_CPU_CHIPID NCPU 116 #endif 117 118 /* 119 * Define the FPU symbol if we could run on a machine with an external 120 * FPU (i.e. not integrated with the normal machine state like the vax). 121 * 122 * The fpu is defined in the architecture manual, and the kernel hides 123 * its absence if it is not present, that's pretty integrated, no? 124 */ 125 126 /* 127 * MMU_PAGES* describes the physical page size used by the mapping hardware. 128 * PAGES* describes the logical page size used by the system. 129 */ 130 #define MMU_PAGE_SIZES 6 /* max sun4u mmu-supported page sizes */ 131 #define DEFAULT_MMU_PAGE_SIZES 4 /* default sun4u supported page sizes */ 132 133 /* 134 * XXX make sure the MMU_PAGESHIFT definition here is 135 * consistent with the one in param.h 136 */ 137 #define MMU_PAGESHIFT 13 138 #define MMU_PAGESIZE (1<<MMU_PAGESHIFT) 139 #define MMU_PAGEOFFSET (MMU_PAGESIZE - 1) 140 #define MMU_PAGEMASK (~MMU_PAGEOFFSET) 141 142 #define MMU_PAGESHIFT64K 16 143 #define MMU_PAGESIZE64K (1 << MMU_PAGESHIFT64K) 144 #define MMU_PAGEOFFSET64K (MMU_PAGESIZE64K - 1) 145 #define MMU_PAGEMASK64K (~MMU_PAGEOFFSET64K) 146 147 #define MMU_PAGESHIFT512K 19 148 #define MMU_PAGESIZE512K (1 << MMU_PAGESHIFT512K) 149 #define MMU_PAGEOFFSET512K (MMU_PAGESIZE512K - 1) 150 #define MMU_PAGEMASK512K (~MMU_PAGEOFFSET512K) 151 152 #define MMU_PAGESHIFT4M 22 153 #define MMU_PAGESIZE4M (1 << MMU_PAGESHIFT4M) 154 #define MMU_PAGEOFFSET4M (MMU_PAGESIZE4M - 1) 155 #define MMU_PAGEMASK4M (~MMU_PAGEOFFSET4M) 156 157 #define MMU_PAGESHIFT32M 25 158 #define MMU_PAGESIZE32M (1 << MMU_PAGESHIFT32M) 159 #define MMU_PAGEOFFSET32M (MMU_PAGESIZE32M - 1) 160 #define MMU_PAGEMASK32M (~MMU_PAGEOFFSET32M) 161 162 #define MMU_PAGESHIFT256M 28 163 #define MMU_PAGESIZE256M (1 << MMU_PAGESHIFT256M) 164 #define MMU_PAGEOFFSET256M (MMU_PAGESIZE256M - 1) 165 #define MMU_PAGEMASK256M (~MMU_PAGEOFFSET256M) 166 167 #define PAGESHIFT 13 168 #define PAGESIZE (1<<PAGESHIFT) 169 #define PAGEOFFSET (PAGESIZE - 1) 170 #define PAGEMASK (~PAGEOFFSET) 171 172 /* 173 * DATA_ALIGN is used to define the alignment of the Unix data segment. 174 */ 175 #define DATA_ALIGN ADDRESS_C(0x2000) 176 177 /* 178 * DEFAULT KERNEL THREAD stack size. 179 */ 180 181 #define DEFAULTSTKSZ (3*PAGESIZE) 182 183 /* 184 * DEFAULT initial thread stack size. 185 */ 186 #define T0STKSZ (2 * DEFAULTSTKSZ) 187 188 /* 189 * KERNELBASE is the virtual address which 190 * the kernel text/data mapping starts in all contexts. 191 */ 192 #define KERNELBASE ADDRESS_C(0x01000000) 193 194 /* 195 * Virtual address range available to the debugger 196 */ 197 #define SEGDEBUGBASE ADDRESS_C(0xedd00000) 198 #define SEGDEBUGSIZE (ADDRESS_C(0xf0000000) - SEGDEBUGBASE) 199 200 /* 201 * Define the userlimits 202 */ 203 204 #define USERLIMIT ADDRESS_C(0xFFFFFFFF80000000) 205 #define USERLIMIT32 ADDRESS_C(0xFFC00000) 206 207 /* 208 * Define SEGKPBASE, start of the segkp segment. 209 */ 210 211 #define SEGKPBASE ADDRESS_C(0x2a100000000) 212 213 /* 214 * Define SEGMAPBASE, start of the segmap segment. 215 */ 216 217 #define SEGMAPBASE ADDRESS_C(0x2a750000000) 218 219 /* 220 * SYSBASE is the virtual address which the kernel allocated memory 221 * mapping starts in all contexts. SYSLIMIT is the end of the Sysbase segment. 222 */ 223 224 #define SYSBASE ADDRESS_C(0x30000000000) 225 #define SYSLIMIT ADDRESS_C(0x70000000000) 226 #define SYSBASE32 ADDRESS_C(0x70000000) 227 #define SYSLIMIT32 ADDRESS_C(0x80000000) 228 229 /* 230 * BOOTTMPBASE is the base of a space that can be reclaimed 231 * after the kernel takes over the machine. It contains the 232 * boot archive and memory allocated by krtld before kmem_alloc 233 * is brought online. 234 */ 235 #define BOOTTMPBASE ADDRESS_C(0x4C000000) 236 237 /* 238 * MEMSCRUBBASE is the base virtual address for the memory scrubber 239 * to read large pages. It MUST be 4MB page aligned. 240 */ 241 242 #define MEMSCRUBBASE 0x2a000000000 243 244 /* 245 * Define the kernel address space range allocated to Open Firmware 246 */ 247 #define OFW_START_ADDR 0xf0000000 248 #define OFW_END_ADDR 0xffffffff 249 250 /* 251 * ARGSBASE is the base virtual address of the range which 252 * the kernel uses to map the arguments for exec. 253 */ 254 #define ARGSBASE (MEMSCRUBBASE - NCARGS) 255 256 /* 257 * PPMAPBASE is the base virtual address of the range which 258 * the kernel uses to quickly map pages for operations such 259 * as ppcopy, pagecopy, pagezero, and pagesum. 260 */ 261 #define PPMAPSIZE (512 * 1024) 262 #define PPMAPBASE (ARGSBASE - PPMAPSIZE) 263 264 #define MAXPP_SLOTS ADDRESS_C(16) 265 #define PPMAP_FAST_SIZE (MAXPP_SLOTS * PAGESIZE * NCPU) 266 #define PPMAP_FAST_BASE (PPMAPBASE - PPMAP_FAST_SIZE) 267 268 /* 269 * PIOMAPBASE is the base virtual address at which programmable I/O registers 270 * are mapped. This allows such memory -- which may induce side effects when 271 * read -- to be cordoned off from the system at-large. 272 */ 273 #define PIOMAPSIZE (1024 * 1024 * 1024 * (uintptr_t)5) 274 #define PIOMAPBASE (PPMAP_FAST_BASE - PIOMAPSIZE) 275 276 /* 277 * Allocate space for kernel modules on nucleus pages 278 */ 279 #define MODDATA 1024 * 512 280 281 /* 282 * The heap has a region allocated from it specifically for module text that 283 * cannot fit on the nucleus page. This region -- which starts at address 284 * HEAPTEXT_BASE and runs for HEAPTEXT_SIZE bytes -- has virtual holes 285 * punched in it: for every HEAPTEXT_MAPPED bytes of available virtual, there 286 * is a virtual hole of size HEAPTEXT_UNMAPPED bytes sitting beneath it. This 287 * assures that any text address is within HEAPTEXT_MAPPED of an unmapped 288 * region. The unmapped regions themselves are managed with the routines 289 * kobj_texthole_alloc() and kobj_texthole_free(). 290 */ 291 #define HEAPTEXT_SIZE (128 * 1024 * 1024) /* bytes */ 292 #define HEAPTEXT_OVERSIZE (64 * 1024 * 1024) /* bytes */ 293 #define HEAPTEXT_BASE (SYSLIMIT32 - HEAPTEXT_SIZE) 294 #define HEAPTEXT_MAPPED (2 * 1024 * 1024) 295 #define HEAPTEXT_UNMAPPED (2 * 1024 * 1024) 296 297 #define HEAPTEXT_NARENAS \ 298 (HEAPTEXT_SIZE / (HEAPTEXT_MAPPED + HEAPTEXT_UNMAPPED) + 2) 299 300 /* 301 * Preallocate an area for setting up the user stack during 302 * the exec(). This way we have a faster allocator and also 303 * make sure the stack is always VAC aligned correctly. see 304 * get_arg_base() in startup.c. 305 */ 306 #define ARG_SLOT_SIZE (0x8000) 307 #define ARG_SLOT_SHIFT (15) 308 #define N_ARG_SLOT (0x80) 309 310 #define NARG_BASE (PIOMAPBASE - (ARG_SLOT_SIZE * N_ARG_SLOT)) 311 312 /* 313 * ktextseg+kvalloc should not use space beyond KERNEL_LIMIT32. 314 */ 315 316 /* 317 * For 64-bit kernels, rename KERNEL_LIMIT to KERNEL_LIMIT32 to more accurately 318 * reflect the fact that it's actually the limit for 32-bit kernel virtual 319 * addresses. 320 */ 321 #define KERNEL_LIMIT32 BOOTTMPBASE 322 323 #define PFN_TO_BUSTYPE(pfn) (((pfn) >> 19) & 0x1FF) 324 #define IO_BUSTYPE(pfn) ((PFN_TO_BUSTYPE(pfn) & 0x100) >> 8) 325 326 #ifdef _STARFIRE 327 #define PFN_TO_UPAID(pfn) BUSTYPE_TO_UPAID(PFN_TO_BUSTYPE(pfn)) 328 #else 329 #define PFN_TO_UPAID(pfn) (((pfn) >> 20) & 0x1F) 330 #endif /* _STARFIRE */ 331 332 /* 333 * Defines used for the ptl1_panic parameter, which is passed to the 334 * ptl1_panic assembly routine in %g1. These #defines have string 335 * names defined in sun4u/os/mach_cpu_states.c which should be kept up to 336 * date if new #defines are added. 337 */ 338 #define PTL1_BAD_DEBUG 0 339 #define PTL1_BAD_WTRAP 1 340 #define PTL1_BAD_KMISS 2 341 #define PTL1_BAD_KPROT_FAULT 3 342 #define PTL1_BAD_ISM 4 343 #define PTL1_BAD_MMUTRAP 5 344 #define PTL1_BAD_TRAP 6 345 #define PTL1_BAD_FPTRAP 7 346 #define PTL1_BAD_INTR_VEC 8 347 #define PTL1_BAD_TRACE_PTR 9 348 #define PTL1_BAD_STACK 10 349 #define PTL1_BAD_DTRACE_FLAGS 11 350 #define PTL1_BAD_CTX_STEAL 12 351 #define PTL1_BAD_ECC 13 352 #define PTL1_BAD_CTX 14 353 #define PTL1_BAD_RAISE_TSBEXCP 20 354 #define PTL1_NO_SCDTSB8K 21 355 356 /* 357 * Defines used for ptl1 related data structs. 358 */ 359 #define PTL1_MAXTL 4 360 #define PTL1_DEBUG_TRAP 0x7C 361 #define PTL1_SSIZE 1024 /* minimum stack size */ 362 #define CPU_ALLOC_SIZE MMU_PAGESIZE 363 364 #ifdef __cplusplus 365 } 366 #endif 367 368 #endif /* _SYS_MACHPARAM_H */ 369