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) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 23 */ 24 25 #ifndef _SYS_MACHPARAM_H 26 #define _SYS_MACHPARAM_H 27 28 #ifdef __cplusplus 29 extern "C" { 30 #endif 31 32 #ifndef _ASM 33 #define ADDRESS_C(c) c ## ul 34 #else /* _ASM */ 35 #define ADDRESS_C(c) (c) 36 #endif /* _ASM */ 37 38 /* 39 * Machine dependent parameters and limits - sun4v version. 40 */ 41 42 /* 43 * Define the VAC symbol (etc.) if we could run on a machine 44 * which has a Virtual Address Cache 45 */ 46 47 /* 48 * The maximum possible number of UPA devices in a system. 49 * MAX_UPA maybe defined in a platform's makefile. 50 */ 51 #ifndef MAX_UPA 52 #define MAX_UPA 32 53 #endif 54 55 /* 56 * Maximum cpuid value that we support. NCPU can be defined in a platform's 57 * makefile. 58 */ 59 #ifndef NCPU 60 #define NCPU 512 61 #define NCPU_LOG2 9 62 #elif (!defined(NCPU_LOG2)) 63 #error "Must define NCPU_LOG2 together with NCPU" 64 #endif 65 66 /* NCPU_P2 is NCPU rounded to a power of 2 */ 67 #define NCPU_P2 (1 << NCPU_LOG2) 68 69 /* 70 * Maximum number of processors that we support. With CMP processors, the 71 * portid may not be equal to cpuid. MAX_CPU_CHIPID can be defined in a 72 * platform's makefile. 73 */ 74 #ifndef MAX_CPU_CHIPID 75 #define MAX_CPU_CHIPID NCPU 76 #endif 77 78 /* 79 * Define the FPU symbol if we could run on a machine with an external 80 * FPU (i.e. not integrated with the normal machine state like the vax). 81 * 82 * The fpu is defined in the architecture manual, and the kernel hides 83 * its absence if it is not present, that's pretty integrated, no? 84 */ 85 86 /* 87 * MMU_PAGES* describes the physical page size used by the mapping hardware. 88 * PAGES* describes the logical page size used by the system. 89 */ 90 #define MMU_PAGE_SIZES 6 /* max sun4v mmu-supported page sizes */ 91 #define DEFAULT_MMU_PAGE_SIZES 4 /* default sun4v supported page sizes */ 92 93 /* 94 * XXX make sure the MMU_PAGESHIFT definition here is 95 * consistent with the one in param.h 96 */ 97 #define MMU_PAGESHIFT 13 98 #define MMU_PAGESIZE (1<<MMU_PAGESHIFT) 99 #define MMU_PAGEOFFSET (MMU_PAGESIZE - 1) 100 #define MMU_PAGEMASK (~MMU_PAGEOFFSET) 101 102 #define MMU_PAGESHIFT64K 16 103 #define MMU_PAGESIZE64K (1 << MMU_PAGESHIFT64K) 104 #define MMU_PAGEOFFSET64K (MMU_PAGESIZE64K - 1) 105 #define MMU_PAGEMASK64K (~MMU_PAGEOFFSET64K) 106 107 #define MMU_PAGESHIFT512K 19 108 #define MMU_PAGESIZE512K (1 << MMU_PAGESHIFT512K) 109 #define MMU_PAGEOFFSET512K (MMU_PAGESIZE512K - 1) 110 #define MMU_PAGEMASK512K (~MMU_PAGEOFFSET512K) 111 112 #define MMU_PAGESHIFT4M 22 113 #define MMU_PAGESIZE4M (1 << MMU_PAGESHIFT4M) 114 #define MMU_PAGEOFFSET4M (MMU_PAGESIZE4M - 1) 115 #define MMU_PAGEMASK4M (~MMU_PAGEOFFSET4M) 116 117 #define MMU_PAGESHIFT32M 25 118 #define MMU_PAGESIZE32M (1 << MMU_PAGESHIFT32M) 119 #define MMU_PAGEOFFSET32M (MMU_PAGESIZE32M - 1) 120 #define MMU_PAGEMASK32M (~MMU_PAGEOFFSET32M) 121 122 #define MMU_PAGESHIFT256M 28 123 #define MMU_PAGESIZE256M (1 << MMU_PAGESHIFT256M) 124 #define MMU_PAGEOFFSET256M (MMU_PAGESIZE256M - 1) 125 #define MMU_PAGEMASK256M (~MMU_PAGEOFFSET256M) 126 127 #define PAGESHIFT 13 128 #define PAGESIZE (1<<PAGESHIFT) 129 #define PAGEOFFSET (PAGESIZE - 1) 130 #define PAGEMASK (~PAGEOFFSET) 131 132 /* 133 * DATA_ALIGN is used to define the alignment of the Unix data segment. 134 */ 135 #define DATA_ALIGN ADDRESS_C(0x2000) 136 137 /* 138 * DEFAULT KERNEL THREAD stack size. 139 */ 140 141 #define DEFAULTSTKSZ (3*PAGESIZE) 142 143 /* 144 * DEFAULT initial thread stack size. 145 */ 146 #define T0STKSZ (2 * DEFAULTSTKSZ) 147 148 /* 149 * KERNELBASE is the virtual address which 150 * the kernel text/data mapping starts in all contexts. 151 */ 152 #define KERNELBASE ADDRESS_C(0x01000000) 153 154 /* 155 * Virtual address range available to the debugger 156 */ 157 #define SEGDEBUGBASE ADDRESS_C(0xedd00000) 158 #define SEGDEBUGSIZE (ADDRESS_C(0xf0000000) - SEGDEBUGBASE) 159 160 /* 161 * Define the userlimits 162 */ 163 164 #define USERLIMIT ADDRESS_C(0xFFFFFFFF80000000) 165 #define USERLIMIT32 ADDRESS_C(0xFFC00000) 166 167 /* 168 * Define SEGKPBASE, start of the segkp segment. 169 */ 170 171 #define SEGKPBASE ADDRESS_C(0x2a100000000) 172 173 /* 174 * Define SEGMAPBASE, start of the segmap segment. 175 */ 176 177 #define SEGMAPBASE ADDRESS_C(0x2a750000000) 178 179 /* 180 * SYSBASE is the virtual address which the kernel allocated memory 181 * mapping starts in all contexts. SYSLIMIT is the end of the Sysbase segment. 182 */ 183 184 #define SYSBASE ADDRESS_C(0x30000000000) 185 #define SYSLIMIT ADDRESS_C(0x70000000000) 186 #define SYSBASE32 ADDRESS_C(0x70000000) 187 #define SYSLIMIT32 ADDRESS_C(0x80000000) 188 189 /* 190 * BOOTTMPBASE is the base of a space that can be reclaimed 191 * after the kernel takes over the machine. It contains the 192 * boot archive and memory allocated by krtld before kmem_alloc 193 * is brought online. 194 */ 195 #define BOOTTMPBASE ADDRESS_C(0x4C000000) 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 * 512 240 241 /* 242 * The heap has a region allocated from it specifically for module text that 243 * cannot fit on the nucleus page. This region -- which starts at address 244 * HEAPTEXT_BASE and runs for HEAPTEXT_SIZE bytes -- has virtual holes 245 * punched in it: for every HEAPTEXT_MAPPED bytes of available virtual, there 246 * is a virtual hole of size HEAPTEXT_UNMAPPED bytes sitting beneath it. This 247 * assures that any text address is within HEAPTEXT_MAPPED of an unmapped 248 * region. The unmapped regions themselves are managed with the routines 249 * kobj_texthole_alloc() and kobj_texthole_free(). 250 */ 251 #define HEAPTEXT_SIZE (128 * 1024 * 1024) /* bytes */ 252 #define HEAPTEXT_OVERSIZE (64 * 1024 * 1024) /* bytes */ 253 #define HEAPTEXT_BASE (SYSLIMIT32 - HEAPTEXT_SIZE) 254 #define HEAPTEXT_MAPPED (2 * 1024 * 1024) 255 #define HEAPTEXT_UNMAPPED (2 * 1024 * 1024) 256 257 #define HEAPTEXT_NARENAS \ 258 (HEAPTEXT_SIZE / (HEAPTEXT_MAPPED + HEAPTEXT_UNMAPPED) + 2) 259 260 /* 261 * Establish the space for the MPO support to store its data 262 * structures at startup 263 */ 264 265 #define MPOBUF_SIZE (2 * 1024 * 1024) 266 #define MPOBUF_BASE (HEAPTEXT_BASE - MPOBUF_SIZE) 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 BOOTTMPBASE 290 291 /* 292 * Defines used for the ptl1_panic parameter, which is passed to the 293 * ptl1_panic assembly routine in %g1. These #defines have string 294 * names defined in sun4u/os/mach_cpu_states.c which should be kept up to 295 * date if new #defines are added. 296 */ 297 #define PTL1_BAD_DEBUG 0 298 #define PTL1_BAD_WTRAP 1 299 #define PTL1_BAD_KMISS 2 300 #define PTL1_BAD_KPROT_FAULT 3 301 #define PTL1_BAD_ISM 4 302 #define PTL1_BAD_MMUTRAP 5 303 #define PTL1_BAD_TRAP 6 304 #define PTL1_BAD_FPTRAP 7 305 #define PTL1_BAD_INTR_VEC 8 306 #define PTL1_BAD_TRACE_PTR 9 307 #define PTL1_BAD_STACK 10 308 #define PTL1_BAD_DTRACE_FLAGS 11 309 #define PTL1_BAD_CTX_STEAL 12 310 #define PTL1_BAD_ECC 13 311 #define PTL1_BAD_HCALL 14 312 #define PTL1_BAD_GL 15 313 #define PTL1_BAD_WATCHDOG 16 314 #define PTL1_BAD_RED 17 315 #define PTL1_BAD_HCALL_UNMAP_PERM_EINVAL 18 316 #define PTL1_BAD_HCALL_UNMAP_PERM_ENOMAP 19 317 #define PTL1_BAD_RAISE_TSBEXCP 20 318 #define PTL1_NO_SCDTSB8K 21 319 320 /* 321 * Defines the max trap level allowed 322 */ 323 #define MAXPTL 2 324 325 /* 326 * Defines used for ptl1 related data structs. 327 */ 328 #define PTL1_MAXTL MAXPTL 329 #define PTL1_MAXGL 2 330 #define PTL1_DEBUG_TRAP 0x7C 331 #define PTL1_SSIZE 1024 /* minimum stack size */ 332 #define CPU_ALLOC_SIZE MMU_PAGESIZE 333 334 #ifdef __cplusplus 335 } 336 #endif 337 338 #endif /* _SYS_MACHPARAM_H */ 339