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 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _SYS_MACHPARAM_H 27 #define _SYS_MACHPARAM_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" 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 - sun4v 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 50 /* 51 * The maximum possible number of UPA devices in a system. 52 * MAX_UPA maybe defined in a platform's makefile. 53 */ 54 #ifndef MAX_UPA 55 #define MAX_UPA 32 56 #endif 57 58 /* 59 * Maximum cpuid value that we support. NCPU can be defined in a platform's 60 * makefile. 61 */ 62 #ifndef NCPU 63 #define NCPU 256 64 #endif 65 66 /* 67 * Maximum number of processors that we support. With CMP processors, the 68 * portid may not be equal to cpuid. MAX_CPU_CHIPID can be defined in a 69 * platform's makefile. 70 */ 71 #ifndef MAX_CPU_CHIPID 72 #define MAX_CPU_CHIPID NCPU 73 #endif 74 75 /* 76 * Define the FPU symbol if we could run on a machine with an external 77 * FPU (i.e. not integrated with the normal machine state like the vax). 78 * 79 * The fpu is defined in the architecture manual, and the kernel hides 80 * its absence if it is not present, that's pretty integrated, no? 81 */ 82 83 /* 84 * MMU_PAGES* describes the physical page size used by the mapping hardware. 85 * PAGES* describes the logical page size used by the system. 86 */ 87 #define MMU_PAGE_SIZES 6 /* max sun4v mmu-supported page sizes */ 88 #define DEFAULT_MMU_PAGE_SIZES 4 /* default sun4v supported page sizes */ 89 90 /* 91 * XXX make sure the MMU_PAGESHIFT definition here is 92 * consistent with the one in param.h 93 */ 94 #define MMU_PAGESHIFT 13 95 #define MMU_PAGESIZE (1<<MMU_PAGESHIFT) 96 #define MMU_PAGEOFFSET (MMU_PAGESIZE - 1) 97 #define MMU_PAGEMASK (~MMU_PAGEOFFSET) 98 99 #define MMU_PAGESHIFT64K 16 100 #define MMU_PAGESIZE64K (1 << MMU_PAGESHIFT64K) 101 #define MMU_PAGEOFFSET64K (MMU_PAGESIZE64K - 1) 102 #define MMU_PAGEMASK64K (~MMU_PAGEOFFSET64K) 103 104 #define MMU_PAGESHIFT512K 19 105 #define MMU_PAGESIZE512K (1 << MMU_PAGESHIFT512K) 106 #define MMU_PAGEOFFSET512K (MMU_PAGESIZE512K - 1) 107 #define MMU_PAGEMASK512K (~MMU_PAGEOFFSET512K) 108 109 #define MMU_PAGESHIFT4M 22 110 #define MMU_PAGESIZE4M (1 << MMU_PAGESHIFT4M) 111 #define MMU_PAGEOFFSET4M (MMU_PAGESIZE4M - 1) 112 #define MMU_PAGEMASK4M (~MMU_PAGEOFFSET4M) 113 114 #define MMU_PAGESHIFT32M 25 115 #define MMU_PAGESIZE32M (1 << MMU_PAGESHIFT32M) 116 #define MMU_PAGEOFFSET32M (MMU_PAGESIZE32M - 1) 117 #define MMU_PAGEMASK32M (~MMU_PAGEOFFSET32M) 118 119 #define MMU_PAGESHIFT256M 28 120 #define MMU_PAGESIZE256M (1 << MMU_PAGESHIFT256M) 121 #define MMU_PAGEOFFSET256M (MMU_PAGESIZE256M - 1) 122 #define MMU_PAGEMASK256M (~MMU_PAGEOFFSET256M) 123 124 #define PAGESHIFT 13 125 #define PAGESIZE (1<<PAGESHIFT) 126 #define PAGEOFFSET (PAGESIZE - 1) 127 #define PAGEMASK (~PAGEOFFSET) 128 129 /* 130 * DATA_ALIGN is used to define the alignment of the Unix data segment. 131 */ 132 #define DATA_ALIGN ADDRESS_C(0x2000) 133 134 /* 135 * DEFAULT KERNEL THREAD stack size. 136 */ 137 138 #define DEFAULTSTKSZ (3*PAGESIZE) 139 140 /* 141 * DEFAULT initial thread stack size. 142 */ 143 #define T0STKSZ (2 * DEFAULTSTKSZ) 144 145 /* 146 * KERNELBASE is the virtual address which 147 * the kernel text/data mapping starts in all contexts. 148 */ 149 #define KERNELBASE ADDRESS_C(0x01000000) 150 151 /* 152 * Virtual address range available to the debugger 153 */ 154 #define SEGDEBUGBASE ADDRESS_C(0xedd00000) 155 #define SEGDEBUGSIZE (ADDRESS_C(0xf0000000) - SEGDEBUGBASE) 156 157 /* 158 * Define the userlimits 159 */ 160 161 #define USERLIMIT ADDRESS_C(0xFFFFFFFF80000000) 162 #define USERLIMIT32 ADDRESS_C(0xFFC00000) 163 164 /* 165 * Define SEGKPBASE, start of the segkp segment. 166 */ 167 168 #define SEGKPBASE ADDRESS_C(0x2a100000000) 169 170 /* 171 * Define SEGMAPBASE, start of the segmap segment. 172 */ 173 174 #define SEGMAPBASE ADDRESS_C(0x2a750000000) 175 176 /* 177 * SYSBASE is the virtual address which the kernel allocated memory 178 * mapping starts in all contexts. SYSLIMIT is the end of the Sysbase segment. 179 */ 180 181 #define SYSBASE ADDRESS_C(0x30000000000) 182 #define SYSLIMIT ADDRESS_C(0x70000000000) 183 #define SYSBASE32 ADDRESS_C(0x70000000) 184 #define SYSLIMIT32 ADDRESS_C(0x80000000) 185 186 /* 187 * MEMSCRUBBASE is the base virtual address for the memory scrubber 188 * to read large pages. It MUST be 4MB page aligned. 189 */ 190 191 #define MEMSCRUBBASE 0x2a000000000 192 193 /* 194 * Define the kernel address space range allocated to Open Firmware 195 */ 196 #define OFW_START_ADDR 0xf0000000 197 #define OFW_END_ADDR 0xffffffff 198 199 /* 200 * ARGSBASE is the base virtual address of the range which 201 * the kernel uses to map the arguments for exec. 202 */ 203 #define ARGSBASE (MEMSCRUBBASE - NCARGS) 204 205 /* 206 * PPMAPBASE is the base virtual address of the range which 207 * the kernel uses to quickly map pages for operations such 208 * as ppcopy, pagecopy, pagezero, and pagesum. 209 */ 210 #define PPMAPSIZE (512 * 1024) 211 #define PPMAPBASE (ARGSBASE - PPMAPSIZE) 212 213 #define MAXPP_SLOTS ADDRESS_C(16) 214 #define PPMAP_FAST_SIZE (MAXPP_SLOTS * PAGESIZE * NCPU) 215 #define PPMAP_FAST_BASE (PPMAPBASE - PPMAP_FAST_SIZE) 216 217 /* 218 * PIOMAPBASE is the base virtual address at which programmable I/O registers 219 * are mapped. This allows such memory -- which may induce side effects when 220 * read -- to be cordoned off from the system at-large. 221 */ 222 #define PIOMAPSIZE (1024 * 1024 * 1024 * (uintptr_t)5) 223 #define PIOMAPBASE (PPMAP_FAST_BASE - PIOMAPSIZE) 224 225 /* 226 * Allocate space for kernel modules on nucleus pages 227 */ 228 #define MODDATA 1024 * 256 229 230 /* 231 * On systems with <MODTEXT_SM_SIZE MB available physical memory, 232 * cap the in-nucleus module text to MODTEXT_SM_CAP bytes. The 233 * cap must be a multiple of the base page size. Also see startup.c. 234 */ 235 #define MODTEXT_SM_CAP (0x200000) /* bytes */ 236 #define MODTEXT_SM_SIZE (256) /* MB */ 237 238 /* 239 * The heap has a region allocated from it specifically for module text that 240 * cannot fit on the nucleus page. This region -- which starts at address 241 * HEAPTEXT_BASE and runs for HEAPTEXT_SIZE bytes -- has virtual holes 242 * punched in it: for every HEAPTEXT_MAPPED bytes of available virtual, there 243 * is a virtual hole of size HEAPTEXT_UNMAPPED bytes sitting beneath it. This 244 * assures that any text address is within HEAPTEXT_MAPPED of an unmapped 245 * region. The unmapped regions themselves are managed with the routines 246 * kobj_texthole_alloc() and kobj_texthole_free(). 247 */ 248 #define HEAPTEXT_SIZE (128 * 1024 * 1024) /* bytes */ 249 #define HEAPTEXT_OVERSIZE (64 * 1024 * 1024) /* bytes */ 250 #define HEAPTEXT_BASE (SYSLIMIT32 - HEAPTEXT_SIZE) 251 #define HEAPTEXT_MAPPED (2 * 1024 * 1024) 252 #define HEAPTEXT_UNMAPPED (2 * 1024 * 1024) 253 254 #define HEAPTEXT_NARENAS \ 255 (HEAPTEXT_SIZE / (HEAPTEXT_MAPPED + HEAPTEXT_UNMAPPED) + 2) 256 257 /* 258 * Preallocate an area for setting up the user stack during 259 * the exec(). This way we have a faster allocator and also 260 * make sure the stack is always VAC aligned correctly. see 261 * get_arg_base() in startup.c. 262 */ 263 #define ARG_SLOT_SIZE (0x8000) 264 #define ARG_SLOT_SHIFT (15) 265 #define N_ARG_SLOT (0x80) 266 267 #define NARG_BASE (PIOMAPBASE - (ARG_SLOT_SIZE * N_ARG_SLOT)) 268 269 /* 270 * ktextseg+kvalloc should not use space beyond KERNEL_LIMIT32. 271 */ 272 273 /* 274 * For 64-bit kernels, rename KERNEL_LIMIT to KERNEL_LIMIT32 to more accurately 275 * reflect the fact that it's actually the limit for 32-bit kernel virtual 276 * addresses. 277 */ 278 #define KERNEL_LIMIT32 (SYSBASE32) 279 280 /* 281 * Defines used for the ptl1_panic parameter, which is passed to the 282 * ptl1_panic assembly routine in %g1. These #defines have string 283 * names defined in sun4u/os/mach_cpu_states.c which should be kept up to 284 * date if new #defines are added. 285 */ 286 #define PTL1_BAD_DEBUG 0 287 #define PTL1_BAD_WTRAP 1 288 #define PTL1_BAD_KMISS 2 289 #define PTL1_BAD_KPROT_FAULT 3 290 #define PTL1_BAD_ISM 4 291 #define PTL1_BAD_MMUTRAP 5 292 #define PTL1_BAD_TRAP 6 293 #define PTL1_BAD_FPTRAP 7 294 #define PTL1_BAD_INTR_VEC 8 295 #define PTL1_BAD_TRACE_PTR 9 296 #define PTL1_BAD_STACK 10 297 #define PTL1_BAD_DTRACE_FLAGS 11 298 #define PTL1_BAD_CTX_STEAL 12 299 #define PTL1_BAD_ECC 13 300 #define PTL1_BAD_HCALL 14 301 #define PTL1_BAD_GL 15 302 #define PTL1_BAD_WATCHDOG 16 303 #define PTL1_BAD_RED 17 304 #define PTL1_BAD_HCALL_UNMAP_PERM_EINVAL 18 305 #define PTL1_BAD_HCALL_UNMAP_PERM_ENOMAP 19 306 #define PTL1_BAD_RAISE_TSBEXCP 20 307 #define PTL1_NO_SCDTSB8K 21 308 309 /* 310 * Defines the max trap level allowed 311 */ 312 #define MAXPTL 2 313 314 /* 315 * Defines used for ptl1 related data structs. 316 */ 317 #define PTL1_MAXTL MAXPTL 318 #define PTL1_MAXGL 2 319 #define PTL1_DEBUG_TRAP 0x7C 320 #define PTL1_SSIZE 1024 /* minimum stack size */ 321 #define CPU_ALLOC_SIZE MMU_PAGESIZE 322 323 #ifdef __cplusplus 324 } 325 #endif 326 327 #endif /* _SYS_MACHPARAM_H */ 328