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 2009 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 #ifdef __cplusplus 30 extern "C" { 31 #endif 32 33 #ifndef _ASM 34 #define ADDRESS_C(c) c ## ul 35 #else /* _ASM */ 36 #define ADDRESS_C(c) (c) 37 #endif /* _ASM */ 38 39 /* 40 * Machine dependent parameters and limits - sun4v version. 41 */ 42 43 /* 44 * Define the VAC symbol (etc.) if we could run on a machine 45 * which has a Virtual Address Cache 46 */ 47 48 /* 49 * The maximum possible number of UPA devices in a system. 50 * MAX_UPA maybe defined in a platform's makefile. 51 */ 52 #ifndef MAX_UPA 53 #define MAX_UPA 32 54 #endif 55 56 /* 57 * Maximum cpuid value that we support. NCPU can be defined in a platform's 58 * makefile. 59 */ 60 #ifndef NCPU 61 #define NCPU 512 62 #endif 63 64 /* 65 * Maximum number of processors that we support. With CMP processors, the 66 * portid may not be equal to cpuid. MAX_CPU_CHIPID can be defined in a 67 * platform's makefile. 68 */ 69 #ifndef MAX_CPU_CHIPID 70 #define MAX_CPU_CHIPID NCPU 71 #endif 72 73 /* 74 * Define the FPU symbol if we could run on a machine with an external 75 * FPU (i.e. not integrated with the normal machine state like the vax). 76 * 77 * The fpu is defined in the architecture manual, and the kernel hides 78 * its absence if it is not present, that's pretty integrated, no? 79 */ 80 81 /* 82 * MMU_PAGES* describes the physical page size used by the mapping hardware. 83 * PAGES* describes the logical page size used by the system. 84 */ 85 #define MMU_PAGE_SIZES 6 /* max sun4v mmu-supported page sizes */ 86 #define DEFAULT_MMU_PAGE_SIZES 4 /* default sun4v supported page sizes */ 87 88 /* 89 * XXX make sure the MMU_PAGESHIFT definition here is 90 * consistent with the one in param.h 91 */ 92 #define MMU_PAGESHIFT 13 93 #define MMU_PAGESIZE (1<<MMU_PAGESHIFT) 94 #define MMU_PAGEOFFSET (MMU_PAGESIZE - 1) 95 #define MMU_PAGEMASK (~MMU_PAGEOFFSET) 96 97 #define MMU_PAGESHIFT64K 16 98 #define MMU_PAGESIZE64K (1 << MMU_PAGESHIFT64K) 99 #define MMU_PAGEOFFSET64K (MMU_PAGESIZE64K - 1) 100 #define MMU_PAGEMASK64K (~MMU_PAGEOFFSET64K) 101 102 #define MMU_PAGESHIFT512K 19 103 #define MMU_PAGESIZE512K (1 << MMU_PAGESHIFT512K) 104 #define MMU_PAGEOFFSET512K (MMU_PAGESIZE512K - 1) 105 #define MMU_PAGEMASK512K (~MMU_PAGEOFFSET512K) 106 107 #define MMU_PAGESHIFT4M 22 108 #define MMU_PAGESIZE4M (1 << MMU_PAGESHIFT4M) 109 #define MMU_PAGEOFFSET4M (MMU_PAGESIZE4M - 1) 110 #define MMU_PAGEMASK4M (~MMU_PAGEOFFSET4M) 111 112 #define MMU_PAGESHIFT32M 25 113 #define MMU_PAGESIZE32M (1 << MMU_PAGESHIFT32M) 114 #define MMU_PAGEOFFSET32M (MMU_PAGESIZE32M - 1) 115 #define MMU_PAGEMASK32M (~MMU_PAGEOFFSET32M) 116 117 #define MMU_PAGESHIFT256M 28 118 #define MMU_PAGESIZE256M (1 << MMU_PAGESHIFT256M) 119 #define MMU_PAGEOFFSET256M (MMU_PAGESIZE256M - 1) 120 #define MMU_PAGEMASK256M (~MMU_PAGEOFFSET256M) 121 122 #define PAGESHIFT 13 123 #define PAGESIZE (1<<PAGESHIFT) 124 #define PAGEOFFSET (PAGESIZE - 1) 125 #define PAGEMASK (~PAGEOFFSET) 126 127 /* 128 * DATA_ALIGN is used to define the alignment of the Unix data segment. 129 */ 130 #define DATA_ALIGN ADDRESS_C(0x2000) 131 132 /* 133 * DEFAULT KERNEL THREAD stack size. 134 */ 135 136 #define DEFAULTSTKSZ (3*PAGESIZE) 137 138 /* 139 * DEFAULT initial thread stack size. 140 */ 141 #define T0STKSZ (2 * DEFAULTSTKSZ) 142 143 /* 144 * KERNELBASE is the virtual address which 145 * the kernel text/data mapping starts in all contexts. 146 */ 147 #define KERNELBASE ADDRESS_C(0x01000000) 148 149 /* 150 * Virtual address range available to the debugger 151 */ 152 #define SEGDEBUGBASE ADDRESS_C(0xedd00000) 153 #define SEGDEBUGSIZE (ADDRESS_C(0xf0000000) - SEGDEBUGBASE) 154 155 /* 156 * Define the userlimits 157 */ 158 159 #define USERLIMIT ADDRESS_C(0xFFFFFFFF80000000) 160 #define USERLIMIT32 ADDRESS_C(0xFFC00000) 161 162 /* 163 * Define SEGKPBASE, start of the segkp segment. 164 */ 165 166 #define SEGKPBASE ADDRESS_C(0x2a100000000) 167 168 /* 169 * Define SEGMAPBASE, start of the segmap segment. 170 */ 171 172 #define SEGMAPBASE ADDRESS_C(0x2a750000000) 173 174 /* 175 * SYSBASE is the virtual address which the kernel allocated memory 176 * mapping starts in all contexts. SYSLIMIT is the end of the Sysbase segment. 177 */ 178 179 #define SYSBASE ADDRESS_C(0x30000000000) 180 #define SYSLIMIT ADDRESS_C(0x70000000000) 181 #define SYSBASE32 ADDRESS_C(0x70000000) 182 #define SYSLIMIT32 ADDRESS_C(0x80000000) 183 184 /* 185 * BOOTTMPBASE is the base of a space that can be reclaimed 186 * after the kernel takes over the machine. It contains the 187 * boot archive and memory allocated by krtld before kmem_alloc 188 * is brought online. 189 */ 190 #define BOOTTMPBASE ADDRESS_C(0x4C000000) 191 192 /* 193 * MEMSCRUBBASE is the base virtual address for the memory scrubber 194 * to read large pages. It MUST be 4MB page aligned. 195 */ 196 197 #define MEMSCRUBBASE 0x2a000000000 198 199 /* 200 * Define the kernel address space range allocated to Open Firmware 201 */ 202 #define OFW_START_ADDR 0xf0000000 203 #define OFW_END_ADDR 0xffffffff 204 205 /* 206 * ARGSBASE is the base virtual address of the range which 207 * the kernel uses to map the arguments for exec. 208 */ 209 #define ARGSBASE (MEMSCRUBBASE - NCARGS) 210 211 /* 212 * PPMAPBASE is the base virtual address of the range which 213 * the kernel uses to quickly map pages for operations such 214 * as ppcopy, pagecopy, pagezero, and pagesum. 215 */ 216 #define PPMAPSIZE (512 * 1024) 217 #define PPMAPBASE (ARGSBASE - PPMAPSIZE) 218 219 #define MAXPP_SLOTS ADDRESS_C(16) 220 #define PPMAP_FAST_SIZE (MAXPP_SLOTS * PAGESIZE * NCPU) 221 #define PPMAP_FAST_BASE (PPMAPBASE - PPMAP_FAST_SIZE) 222 223 /* 224 * PIOMAPBASE is the base virtual address at which programmable I/O registers 225 * are mapped. This allows such memory -- which may induce side effects when 226 * read -- to be cordoned off from the system at-large. 227 */ 228 #define PIOMAPSIZE (1024 * 1024 * 1024 * (uintptr_t)5) 229 #define PIOMAPBASE (PPMAP_FAST_BASE - PIOMAPSIZE) 230 231 /* 232 * Allocate space for kernel modules on nucleus pages 233 */ 234 #define MODDATA 1024 * 512 235 236 /* 237 * The heap has a region allocated from it specifically for module text that 238 * cannot fit on the nucleus page. This region -- which starts at address 239 * HEAPTEXT_BASE and runs for HEAPTEXT_SIZE bytes -- has virtual holes 240 * punched in it: for every HEAPTEXT_MAPPED bytes of available virtual, there 241 * is a virtual hole of size HEAPTEXT_UNMAPPED bytes sitting beneath it. This 242 * assures that any text address is within HEAPTEXT_MAPPED of an unmapped 243 * region. The unmapped regions themselves are managed with the routines 244 * kobj_texthole_alloc() and kobj_texthole_free(). 245 */ 246 #define HEAPTEXT_SIZE (128 * 1024 * 1024) /* bytes */ 247 #define HEAPTEXT_OVERSIZE (64 * 1024 * 1024) /* bytes */ 248 #define HEAPTEXT_BASE (SYSLIMIT32 - HEAPTEXT_SIZE) 249 #define HEAPTEXT_MAPPED (2 * 1024 * 1024) 250 #define HEAPTEXT_UNMAPPED (2 * 1024 * 1024) 251 252 #define HEAPTEXT_NARENAS \ 253 (HEAPTEXT_SIZE / (HEAPTEXT_MAPPED + HEAPTEXT_UNMAPPED) + 2) 254 255 /* 256 * Establish the space for the MPO support to store its data 257 * structures at startup 258 */ 259 260 #define MPOBUF_SIZE (2 * 1024 * 1024) 261 #define MPOBUF_BASE (HEAPTEXT_BASE - MPOBUF_SIZE) 262 263 /* 264 * Preallocate an area for setting up the user stack during 265 * the exec(). This way we have a faster allocator and also 266 * make sure the stack is always VAC aligned correctly. see 267 * get_arg_base() in startup.c. 268 */ 269 #define ARG_SLOT_SIZE (0x8000) 270 #define ARG_SLOT_SHIFT (15) 271 #define N_ARG_SLOT (0x80) 272 273 #define NARG_BASE (PIOMAPBASE - (ARG_SLOT_SIZE * N_ARG_SLOT)) 274 275 /* 276 * ktextseg+kvalloc should not use space beyond KERNEL_LIMIT32. 277 */ 278 279 /* 280 * For 64-bit kernels, rename KERNEL_LIMIT to KERNEL_LIMIT32 to more accurately 281 * reflect the fact that it's actually the limit for 32-bit kernel virtual 282 * addresses. 283 */ 284 #define KERNEL_LIMIT32 BOOTTMPBASE 285 286 /* 287 * Defines used for the ptl1_panic parameter, which is passed to the 288 * ptl1_panic assembly routine in %g1. These #defines have string 289 * names defined in sun4u/os/mach_cpu_states.c which should be kept up to 290 * date if new #defines are added. 291 */ 292 #define PTL1_BAD_DEBUG 0 293 #define PTL1_BAD_WTRAP 1 294 #define PTL1_BAD_KMISS 2 295 #define PTL1_BAD_KPROT_FAULT 3 296 #define PTL1_BAD_ISM 4 297 #define PTL1_BAD_MMUTRAP 5 298 #define PTL1_BAD_TRAP 6 299 #define PTL1_BAD_FPTRAP 7 300 #define PTL1_BAD_INTR_VEC 8 301 #define PTL1_BAD_TRACE_PTR 9 302 #define PTL1_BAD_STACK 10 303 #define PTL1_BAD_DTRACE_FLAGS 11 304 #define PTL1_BAD_CTX_STEAL 12 305 #define PTL1_BAD_ECC 13 306 #define PTL1_BAD_HCALL 14 307 #define PTL1_BAD_GL 15 308 #define PTL1_BAD_WATCHDOG 16 309 #define PTL1_BAD_RED 17 310 #define PTL1_BAD_HCALL_UNMAP_PERM_EINVAL 18 311 #define PTL1_BAD_HCALL_UNMAP_PERM_ENOMAP 19 312 #define PTL1_BAD_RAISE_TSBEXCP 20 313 #define PTL1_NO_SCDTSB8K 21 314 315 /* 316 * Defines the max trap level allowed 317 */ 318 #define MAXPTL 2 319 320 /* 321 * Defines used for ptl1 related data structs. 322 */ 323 #define PTL1_MAXTL MAXPTL 324 #define PTL1_MAXGL 2 325 #define PTL1_DEBUG_TRAP 0x7C 326 #define PTL1_SSIZE 1024 /* minimum stack size */ 327 #define CPU_ALLOC_SIZE MMU_PAGESIZE 328 329 #ifdef __cplusplus 330 } 331 #endif 332 333 #endif /* _SYS_MACHPARAM_H */ 334