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 2019 Peter Tribble. 23 */ 24 /* 25 * Copyright (c) 1993, 2010, Oracle and/or its affiliates. All rights reserved. 26 */ 27 28 /* Copyright (c) 1988 AT&T */ 29 /* All Rights Reserved */ 30 31 #ifndef _SYS_MACHPARAM_H 32 #define _SYS_MACHPARAM_H 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 #ifndef MAX_UPA 61 #define MAX_UPA 32 62 #endif 63 64 /* 65 * Maximum cpuid value that we support. NCPU can be defined in a platform's 66 * makefile. 67 */ 68 #ifndef NCPU 69 #define NCPU 32 70 #endif 71 72 #if (NCPU <= 1) 73 #define NCPU_LOG2 0 74 #elif (NCPU <= 2) 75 #define NCPU_LOG2 1 76 #elif (NCPU <= 4) 77 #define NCPU_LOG2 2 78 #elif (NCPU <= 8) 79 #define NCPU_LOG2 3 80 #elif (NCPU <= 16) 81 #define NCPU_LOG2 4 82 #elif (NCPU <= 32) 83 #define NCPU_LOG2 5 84 #elif (NCPU <= 64) 85 #define NCPU_LOG2 6 86 #elif (NCPU <= 128) 87 #define NCPU_LOG2 7 88 #elif (NCPU <= 256) 89 #define NCPU_LOG2 8 90 #elif (NCPU <= 512) 91 #define NCPU_LOG2 9 92 #elif (NCPU <= 1024) 93 #define NCPU_LOG2 10 94 #else 95 #error "add test for larger NCPU" 96 #endif 97 98 /* NCPU_P2 is NCPU rounded to a power of 2 */ 99 #define NCPU_P2 (1 << NCPU_LOG2) 100 101 /* 102 * Maximum number of processors that we support. With CMP processors, the 103 * portid may not be equal to cpuid. MAX_CPU_CHIPID can be defined in a 104 * platform's makefile. 105 */ 106 #ifndef MAX_CPU_CHIPID 107 #define MAX_CPU_CHIPID NCPU 108 #endif 109 110 /* 111 * Define the FPU symbol if we could run on a machine with an external 112 * FPU (i.e. not integrated with the normal machine state like the vax). 113 * 114 * The fpu is defined in the architecture manual, and the kernel hides 115 * its absence if it is not present, that's pretty integrated, no? 116 */ 117 118 /* 119 * MMU_PAGES* describes the physical page size used by the mapping hardware. 120 * PAGES* describes the logical page size used by the system. 121 */ 122 #define MMU_PAGE_SIZES 6 /* max sun4u mmu-supported page sizes */ 123 #define DEFAULT_MMU_PAGE_SIZES 4 /* default sun4u supported page sizes */ 124 125 /* 126 * XXX make sure the MMU_PAGESHIFT definition here is 127 * consistent with the one in param.h 128 */ 129 #define MMU_PAGESHIFT 13 130 #define MMU_PAGESIZE (1<<MMU_PAGESHIFT) 131 #define MMU_PAGEOFFSET (MMU_PAGESIZE - 1) 132 #define MMU_PAGEMASK (~MMU_PAGEOFFSET) 133 134 #define MMU_PAGESHIFT64K 16 135 #define MMU_PAGESIZE64K (1 << MMU_PAGESHIFT64K) 136 #define MMU_PAGEOFFSET64K (MMU_PAGESIZE64K - 1) 137 #define MMU_PAGEMASK64K (~MMU_PAGEOFFSET64K) 138 139 #define MMU_PAGESHIFT512K 19 140 #define MMU_PAGESIZE512K (1 << MMU_PAGESHIFT512K) 141 #define MMU_PAGEOFFSET512K (MMU_PAGESIZE512K - 1) 142 #define MMU_PAGEMASK512K (~MMU_PAGEOFFSET512K) 143 144 #define MMU_PAGESHIFT4M 22 145 #define MMU_PAGESIZE4M (1 << MMU_PAGESHIFT4M) 146 #define MMU_PAGEOFFSET4M (MMU_PAGESIZE4M - 1) 147 #define MMU_PAGEMASK4M (~MMU_PAGEOFFSET4M) 148 149 #define MMU_PAGESHIFT32M 25 150 #define MMU_PAGESIZE32M (1 << MMU_PAGESHIFT32M) 151 #define MMU_PAGEOFFSET32M (MMU_PAGESIZE32M - 1) 152 #define MMU_PAGEMASK32M (~MMU_PAGEOFFSET32M) 153 154 #define MMU_PAGESHIFT256M 28 155 #define MMU_PAGESIZE256M (1 << MMU_PAGESHIFT256M) 156 #define MMU_PAGEOFFSET256M (MMU_PAGESIZE256M - 1) 157 #define MMU_PAGEMASK256M (~MMU_PAGEOFFSET256M) 158 159 #define PAGESHIFT 13 160 #define PAGESIZE (1<<PAGESHIFT) 161 #define PAGEOFFSET (PAGESIZE - 1) 162 #define PAGEMASK (~PAGEOFFSET) 163 164 /* 165 * DATA_ALIGN is used to define the alignment of the Unix data segment. 166 */ 167 #define DATA_ALIGN ADDRESS_C(0x2000) 168 169 /* 170 * DEFAULT KERNEL THREAD stack size. 171 */ 172 173 #define DEFAULTSTKSZ (3*PAGESIZE) 174 175 /* 176 * DEFAULT initial thread stack size. 177 */ 178 #define T0STKSZ (2 * DEFAULTSTKSZ) 179 180 /* 181 * KERNELBASE is the virtual address which 182 * the kernel text/data mapping starts in all contexts. 183 */ 184 #define KERNELBASE ADDRESS_C(0x01000000) 185 186 /* 187 * Virtual address range available to the debugger 188 */ 189 #define SEGDEBUGBASE ADDRESS_C(0xedd00000) 190 #define SEGDEBUGSIZE (ADDRESS_C(0xf0000000) - SEGDEBUGBASE) 191 192 /* 193 * Define the userlimits 194 */ 195 196 #define USERLIMIT ADDRESS_C(0xFFFFFFFF80000000) 197 #define USERLIMIT32 ADDRESS_C(0xFFC00000) 198 199 /* 200 * Define SEGKPBASE, start of the segkp segment. 201 */ 202 203 #define SEGKPBASE ADDRESS_C(0x2a100000000) 204 205 /* 206 * Define SEGMAPBASE, start of the segmap segment. 207 */ 208 209 #define SEGMAPBASE ADDRESS_C(0x2a750000000) 210 211 /* 212 * SYSBASE is the virtual address which the kernel allocated memory 213 * mapping starts in all contexts. SYSLIMIT is the end of the Sysbase segment. 214 */ 215 216 #define SYSBASE ADDRESS_C(0x30000000000) 217 #define SYSLIMIT ADDRESS_C(0x70000000000) 218 #define SYSBASE32 ADDRESS_C(0x70000000) 219 #define SYSLIMIT32 ADDRESS_C(0x80000000) 220 221 /* 222 * BOOTTMPBASE is the base of a space that can be reclaimed 223 * after the kernel takes over the machine. It contains the 224 * boot archive and memory allocated by krtld before kmem_alloc 225 * is brought online. 226 */ 227 #define BOOTTMPBASE ADDRESS_C(0x4C000000) 228 229 /* 230 * MEMSCRUBBASE is the base virtual address for the memory scrubber 231 * to read large pages. It MUST be 4MB page aligned. 232 */ 233 234 #define MEMSCRUBBASE 0x2a000000000 235 236 /* 237 * Define the kernel address space range allocated to Open Firmware 238 */ 239 #define OFW_START_ADDR 0xf0000000 240 #define OFW_END_ADDR 0xffffffff 241 242 /* 243 * ARGSBASE is the base virtual address of the range which 244 * the kernel uses to map the arguments for exec. 245 */ 246 #define ARGSBASE (MEMSCRUBBASE - NCARGS) 247 248 /* 249 * PPMAPBASE is the base virtual address of the range which 250 * the kernel uses to quickly map pages for operations such 251 * as ppcopy, pagecopy, pagezero, and pagesum. 252 */ 253 #define PPMAPSIZE (512 * 1024) 254 #define PPMAPBASE (ARGSBASE - PPMAPSIZE) 255 256 #define MAXPP_SLOTS ADDRESS_C(16) 257 #define PPMAP_FAST_SIZE (MAXPP_SLOTS * PAGESIZE * NCPU) 258 #define PPMAP_FAST_BASE (PPMAPBASE - PPMAP_FAST_SIZE) 259 260 /* 261 * PIOMAPBASE is the base virtual address at which programmable I/O registers 262 * are mapped. This allows such memory -- which may induce side effects when 263 * read -- to be cordoned off from the system at-large. 264 */ 265 #define PIOMAPSIZE (1024 * 1024 * 1024 * (uintptr_t)5) 266 #define PIOMAPBASE (PPMAP_FAST_BASE - PIOMAPSIZE) 267 268 /* 269 * Allocate space for kernel modules on nucleus pages 270 */ 271 #define MODDATA 1024 * 512 272 273 /* 274 * The heap has a region allocated from it specifically for module text that 275 * cannot fit on the nucleus page. This region -- which starts at address 276 * HEAPTEXT_BASE and runs for HEAPTEXT_SIZE bytes -- has virtual holes 277 * punched in it: for every HEAPTEXT_MAPPED bytes of available virtual, there 278 * is a virtual hole of size HEAPTEXT_UNMAPPED bytes sitting beneath it. This 279 * assures that any text address is within HEAPTEXT_MAPPED of an unmapped 280 * region. The unmapped regions themselves are managed with the routines 281 * kobj_texthole_alloc() and kobj_texthole_free(). 282 */ 283 #define HEAPTEXT_SIZE (128 * 1024 * 1024) /* bytes */ 284 #define HEAPTEXT_OVERSIZE (64 * 1024 * 1024) /* bytes */ 285 #define HEAPTEXT_BASE (SYSLIMIT32 - HEAPTEXT_SIZE) 286 #define HEAPTEXT_MAPPED (2 * 1024 * 1024) 287 #define HEAPTEXT_UNMAPPED (2 * 1024 * 1024) 288 289 #define HEAPTEXT_NARENAS \ 290 (HEAPTEXT_SIZE / (HEAPTEXT_MAPPED + HEAPTEXT_UNMAPPED) + 2) 291 292 /* 293 * Preallocate an area for setting up the user stack during 294 * the exec(). This way we have a faster allocator and also 295 * make sure the stack is always VAC aligned correctly. see 296 * get_arg_base() in startup.c. 297 */ 298 #define ARG_SLOT_SIZE (0x8000) 299 #define ARG_SLOT_SHIFT (15) 300 #define N_ARG_SLOT (0x80) 301 302 #define NARG_BASE (PIOMAPBASE - (ARG_SLOT_SIZE * N_ARG_SLOT)) 303 304 /* 305 * ktextseg+kvalloc should not use space beyond KERNEL_LIMIT32. 306 */ 307 308 /* 309 * For 64-bit kernels, rename KERNEL_LIMIT to KERNEL_LIMIT32 to more accurately 310 * reflect the fact that it's actually the limit for 32-bit kernel virtual 311 * addresses. 312 */ 313 #define KERNEL_LIMIT32 BOOTTMPBASE 314 315 #define PFN_TO_BUSTYPE(pfn) (((pfn) >> 19) & 0x1FF) 316 #define IO_BUSTYPE(pfn) ((PFN_TO_BUSTYPE(pfn) & 0x100) >> 8) 317 318 #define PFN_TO_UPAID(pfn) (((pfn) >> 20) & 0x1F) 319 320 /* 321 * Defines used for the ptl1_panic parameter, which is passed to the 322 * ptl1_panic assembly routine in %g1. These #defines have string 323 * names defined in sun4u/os/mach_cpu_states.c which should be kept up to 324 * date if new #defines are added. 325 */ 326 #define PTL1_BAD_DEBUG 0 327 #define PTL1_BAD_WTRAP 1 328 #define PTL1_BAD_KMISS 2 329 #define PTL1_BAD_KPROT_FAULT 3 330 #define PTL1_BAD_ISM 4 331 #define PTL1_BAD_MMUTRAP 5 332 #define PTL1_BAD_TRAP 6 333 #define PTL1_BAD_FPTRAP 7 334 #define PTL1_BAD_INTR_VEC 8 335 #define PTL1_BAD_TRACE_PTR 9 336 #define PTL1_BAD_STACK 10 337 #define PTL1_BAD_DTRACE_FLAGS 11 338 #define PTL1_BAD_CTX_STEAL 12 339 #define PTL1_BAD_ECC 13 340 #define PTL1_BAD_CTX 14 341 #define PTL1_BAD_RAISE_TSBEXCP 20 342 #define PTL1_NO_SCDTSB8K 21 343 344 /* 345 * Defines used for ptl1 related data structs. 346 */ 347 #define PTL1_MAXTL 4 348 #define PTL1_DEBUG_TRAP 0x7C 349 #define PTL1_SSIZE 1024 /* minimum stack size */ 350 #define CPU_ALLOC_SIZE MMU_PAGESIZE 351 352 #ifdef __cplusplus 353 } 354 #endif 355 356 #endif /* _SYS_MACHPARAM_H */ 357