1*7c478bd9Sstevel@tonic-gate /* 2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START 3*7c478bd9Sstevel@tonic-gate * 4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*7c478bd9Sstevel@tonic-gate * with the License. 8*7c478bd9Sstevel@tonic-gate * 9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 12*7c478bd9Sstevel@tonic-gate * and limitations under the License. 13*7c478bd9Sstevel@tonic-gate * 14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*7c478bd9Sstevel@tonic-gate * 20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END 21*7c478bd9Sstevel@tonic-gate */ 22*7c478bd9Sstevel@tonic-gate /* 23*7c478bd9Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24*7c478bd9Sstevel@tonic-gate * Use is subject to license terms. 25*7c478bd9Sstevel@tonic-gate */ 26*7c478bd9Sstevel@tonic-gate 27*7c478bd9Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */ 28*7c478bd9Sstevel@tonic-gate /* All Rights Reserved */ 29*7c478bd9Sstevel@tonic-gate 30*7c478bd9Sstevel@tonic-gate 31*7c478bd9Sstevel@tonic-gate #ifndef _SYS_MACHPARAM_H 32*7c478bd9Sstevel@tonic-gate #define _SYS_MACHPARAM_H 33*7c478bd9Sstevel@tonic-gate 34*7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 35*7c478bd9Sstevel@tonic-gate 36*7c478bd9Sstevel@tonic-gate #include <sys/types.h> 37*7c478bd9Sstevel@tonic-gate 38*7c478bd9Sstevel@tonic-gate #ifdef __cplusplus 39*7c478bd9Sstevel@tonic-gate extern "C" { 40*7c478bd9Sstevel@tonic-gate #endif 41*7c478bd9Sstevel@tonic-gate 42*7c478bd9Sstevel@tonic-gate #ifndef _ASM 43*7c478bd9Sstevel@tonic-gate #define ADDRESS_C(c) c ## ul 44*7c478bd9Sstevel@tonic-gate #else /* _ASM */ 45*7c478bd9Sstevel@tonic-gate #define ADDRESS_C(c) (c) 46*7c478bd9Sstevel@tonic-gate #endif /* _ASM */ 47*7c478bd9Sstevel@tonic-gate 48*7c478bd9Sstevel@tonic-gate /* 49*7c478bd9Sstevel@tonic-gate * Machine dependent parameters and limits - PC version. 50*7c478bd9Sstevel@tonic-gate */ 51*7c478bd9Sstevel@tonic-gate #define NCPU 21 52*7c478bd9Sstevel@tonic-gate 53*7c478bd9Sstevel@tonic-gate /* 54*7c478bd9Sstevel@tonic-gate * The value defined below could grow to 16. hat structure and 55*7c478bd9Sstevel@tonic-gate * page_t have room for 16 nodes. 56*7c478bd9Sstevel@tonic-gate */ 57*7c478bd9Sstevel@tonic-gate #define MAXNODES 4 58*7c478bd9Sstevel@tonic-gate #define NUMA_NODEMASK 0x0f 59*7c478bd9Sstevel@tonic-gate 60*7c478bd9Sstevel@tonic-gate 61*7c478bd9Sstevel@tonic-gate /* 62*7c478bd9Sstevel@tonic-gate * Define the FPU symbol if we could run on a machine with an external 63*7c478bd9Sstevel@tonic-gate * FPU (i.e. not integrated with the normal machine state like the vax). 64*7c478bd9Sstevel@tonic-gate * 65*7c478bd9Sstevel@tonic-gate * The fpu is defined in the architecture manual, and the kernel hides 66*7c478bd9Sstevel@tonic-gate * its absence if it is not present, that's pretty integrated, no? 67*7c478bd9Sstevel@tonic-gate */ 68*7c478bd9Sstevel@tonic-gate 69*7c478bd9Sstevel@tonic-gate /* supported page sizes */ 70*7c478bd9Sstevel@tonic-gate #define MMU_PAGE_SIZES 2 71*7c478bd9Sstevel@tonic-gate 72*7c478bd9Sstevel@tonic-gate /* 73*7c478bd9Sstevel@tonic-gate * MMU_PAGES* describes the physical page size used by the mapping hardware. 74*7c478bd9Sstevel@tonic-gate * PAGES* describes the logical page size used by the system. 75*7c478bd9Sstevel@tonic-gate */ 76*7c478bd9Sstevel@tonic-gate 77*7c478bd9Sstevel@tonic-gate #define MMU_PAGESIZE 0x1000 /* 4096 bytes */ 78*7c478bd9Sstevel@tonic-gate #define MMU_PAGESHIFT 12 /* log2(MMU_PAGESIZE) */ 79*7c478bd9Sstevel@tonic-gate #define MMU_PAGEOFFSET (MMU_PAGESIZE-1) /* Mask of address bits in page */ 80*7c478bd9Sstevel@tonic-gate #define MMU_PAGEMASK (~MMU_PAGEOFFSET) 81*7c478bd9Sstevel@tonic-gate 82*7c478bd9Sstevel@tonic-gate #define PAGESIZE 0x1000 /* All of the above, for logical */ 83*7c478bd9Sstevel@tonic-gate #define PAGESHIFT 12 84*7c478bd9Sstevel@tonic-gate #define PAGEOFFSET (PAGESIZE - 1) 85*7c478bd9Sstevel@tonic-gate #define PAGEMASK (~PAGEOFFSET) 86*7c478bd9Sstevel@tonic-gate 87*7c478bd9Sstevel@tonic-gate /* 88*7c478bd9Sstevel@tonic-gate * DATA_ALIGN is used to define the alignment of the Unix data segment. 89*7c478bd9Sstevel@tonic-gate */ 90*7c478bd9Sstevel@tonic-gate #define DATA_ALIGN PAGESIZE 91*7c478bd9Sstevel@tonic-gate 92*7c478bd9Sstevel@tonic-gate /* 93*7c478bd9Sstevel@tonic-gate * DEFAULT KERNEL THREAD stack size. 94*7c478bd9Sstevel@tonic-gate */ 95*7c478bd9Sstevel@tonic-gate #if defined(__amd64) 96*7c478bd9Sstevel@tonic-gate #define DEFAULTSTKSZ (5 * PAGESIZE) 97*7c478bd9Sstevel@tonic-gate #elif defined(__i386) 98*7c478bd9Sstevel@tonic-gate #define DEFAULTSTKSZ (2 * PAGESIZE) 99*7c478bd9Sstevel@tonic-gate #endif 100*7c478bd9Sstevel@tonic-gate 101*7c478bd9Sstevel@tonic-gate /* 102*7c478bd9Sstevel@tonic-gate * KERNELBASE is the virtual address at which the kernel segments start in 103*7c478bd9Sstevel@tonic-gate * all contexts. 104*7c478bd9Sstevel@tonic-gate * 105*7c478bd9Sstevel@tonic-gate * KERNELBASE is not fixed on 32-bit systems. The value of KERNELBASE can 106*7c478bd9Sstevel@tonic-gate * change with installed memory and the eprom variable 'eprom_kernelbase'. 107*7c478bd9Sstevel@tonic-gate * This value is fixed on 64-bit systems. 108*7c478bd9Sstevel@tonic-gate * 109*7c478bd9Sstevel@tonic-gate * common/conf/param.c requires a compile time defined value for KERNELBASE 110*7c478bd9Sstevel@tonic-gate * which it saves in the variable _kernelbase. If kernelbase is modifed on 111*7c478bd9Sstevel@tonic-gate * a 32-bit system, _kernelbase will be updated with the new value in 112*7c478bd9Sstevel@tonic-gate * i86pc/os/startup.c. 113*7c478bd9Sstevel@tonic-gate * 114*7c478bd9Sstevel@tonic-gate * i86 and i86pc files use kernelbase instead of KERNELBASE, which is 115*7c478bd9Sstevel@tonic-gate * initialized in i86pc/os/startup.c. 116*7c478bd9Sstevel@tonic-gate */ 117*7c478bd9Sstevel@tonic-gate 118*7c478bd9Sstevel@tonic-gate #if defined(__amd64) 119*7c478bd9Sstevel@tonic-gate 120*7c478bd9Sstevel@tonic-gate #define KERNELBASE ADDRESS_C(0xfffffd8000000000) 121*7c478bd9Sstevel@tonic-gate 122*7c478bd9Sstevel@tonic-gate /* 123*7c478bd9Sstevel@tonic-gate * Size of the unmapped "red zone" at the very bottom of the kernel's 124*7c478bd9Sstevel@tonic-gate * address space. Corresponds to 1 slot in the toplevel pagetable. 125*7c478bd9Sstevel@tonic-gate */ 126*7c478bd9Sstevel@tonic-gate #define KERNEL_REDZONE_SIZE ((uintptr_t)1 << 39) 127*7c478bd9Sstevel@tonic-gate 128*7c478bd9Sstevel@tonic-gate /* 129*7c478bd9Sstevel@tonic-gate * Base of 'core' heap area, which is used for kernel and module text/data 130*7c478bd9Sstevel@tonic-gate * that must be within a 2GB range to allow for rip-relative addressing. 131*7c478bd9Sstevel@tonic-gate * 132*7c478bd9Sstevel@tonic-gate * XX64: because vmx and boot cannot be trusted to stay in a 1GB playpen at 133*7c478bd9Sstevel@tonic-gate * the bottom of the upper 4GB range, we need to restrict the core heap to 134*7c478bd9Sstevel@tonic-gate * the top 1GB for now. 135*7c478bd9Sstevel@tonic-gate */ 136*7c478bd9Sstevel@tonic-gate #define COREHEAP_BASE ADDRESS_C(0xffffffffc0000000) 137*7c478bd9Sstevel@tonic-gate 138*7c478bd9Sstevel@tonic-gate /* 139*7c478bd9Sstevel@tonic-gate * Beginning of the segkpm window 140*7c478bd9Sstevel@tonic-gate */ 141*7c478bd9Sstevel@tonic-gate #define SEGKPM_BASE ADDRESS_C(0xfffffe0000000000) 142*7c478bd9Sstevel@tonic-gate 143*7c478bd9Sstevel@tonic-gate /* 144*7c478bd9Sstevel@tonic-gate * default and boundary sizes for segkp 145*7c478bd9Sstevel@tonic-gate */ 146*7c478bd9Sstevel@tonic-gate #define SEGKPDEFSIZE (2L * 1024L * 1024L * 1024L) /* 2G */ 147*7c478bd9Sstevel@tonic-gate #define SEGKPMAXSIZE (8L * 1024L * 1024L * 1024L) /* 8G */ 148*7c478bd9Sstevel@tonic-gate #define SEGKPMINSIZE (200L * 1024 * 1024L) /* 200M */ 149*7c478bd9Sstevel@tonic-gate 150*7c478bd9Sstevel@tonic-gate /* 151*7c478bd9Sstevel@tonic-gate * Boot (or, more precisely, vmx) maps most pages twice - once in the 152*7c478bd9Sstevel@tonic-gate * bottom 2GB of memory and once in the bottom 2GB of the topmost 4GB. 153*7c478bd9Sstevel@tonic-gate * When boot is unmapped this range is available to the kernel, but until 154*7c478bd9Sstevel@tonic-gate * then we have to leave it untouched. 155*7c478bd9Sstevel@tonic-gate */ 156*7c478bd9Sstevel@tonic-gate #define BOOT_DOUBLEMAP_BASE ADDRESS_C(0xffffffff00000000) 157*7c478bd9Sstevel@tonic-gate #define BOOT_DOUBLEMAP_SIZE ADDRESS_C(0x80000000) 158*7c478bd9Sstevel@tonic-gate 159*7c478bd9Sstevel@tonic-gate /* 160*7c478bd9Sstevel@tonic-gate * VMWare works best if we don't use the top 64Meg of memory for amd64. 161*7c478bd9Sstevel@tonic-gate * Set KERNEL_TEXT to top_o_memory - 64Meg - 8 Meg for 8Meg of nucleus pages. 162*7c478bd9Sstevel@tonic-gate */ 163*7c478bd9Sstevel@tonic-gate #define PROMSTART ADDRESS_C(0xffc00000) 164*7c478bd9Sstevel@tonic-gate #define KERNEL_TEXT ADDRESS_C(0xfffffffffb800000) 165*7c478bd9Sstevel@tonic-gate 166*7c478bd9Sstevel@tonic-gate /* 167*7c478bd9Sstevel@tonic-gate * Define upper limit on user address space 168*7c478bd9Sstevel@tonic-gate * 169*7c478bd9Sstevel@tonic-gate * In amd64, the upper limit on a 64-bit user address space is 1 large page 170*7c478bd9Sstevel@tonic-gate * (2MB) below kernelbase. The upper limit for a 32-bit user address space 171*7c478bd9Sstevel@tonic-gate * is 1 small page (4KB) below the top of the 32-bit range. The 64-bit 172*7c478bd9Sstevel@tonic-gate * limit give dtrace the red zone it needs below kernelbase. The 32-bit 173*7c478bd9Sstevel@tonic-gate * limit gives us a small red zone to detect address-space overruns in a 174*7c478bd9Sstevel@tonic-gate * user program. 175*7c478bd9Sstevel@tonic-gate */ 176*7c478bd9Sstevel@tonic-gate #define USERLIMIT ADDRESS_C(0xfffffd7fffe00000) 177*7c478bd9Sstevel@tonic-gate #ifdef bug_5074717_is_fixed 178*7c478bd9Sstevel@tonic-gate #define USERLIMIT32 ADDRESS_C(0xfffff000) 179*7c478bd9Sstevel@tonic-gate #else 180*7c478bd9Sstevel@tonic-gate #define USERLIMIT32 ADDRESS_C(0xfefff000) 181*7c478bd9Sstevel@tonic-gate #endif 182*7c478bd9Sstevel@tonic-gate 183*7c478bd9Sstevel@tonic-gate #elif defined(__i386) 184*7c478bd9Sstevel@tonic-gate 185*7c478bd9Sstevel@tonic-gate #ifdef DEBUG 186*7c478bd9Sstevel@tonic-gate #define KERNELBASE ADDRESS_C(0xc8000000) 187*7c478bd9Sstevel@tonic-gate #else 188*7c478bd9Sstevel@tonic-gate #define KERNELBASE ADDRESS_C(0xd4000000) 189*7c478bd9Sstevel@tonic-gate #endif 190*7c478bd9Sstevel@tonic-gate 191*7c478bd9Sstevel@tonic-gate #define KERNELBASE_MAX ADDRESS_C(0xe0000000) 192*7c478bd9Sstevel@tonic-gate 193*7c478bd9Sstevel@tonic-gate /* 194*7c478bd9Sstevel@tonic-gate * The i386 ABI requires that the user address space be at least 3Gb 195*7c478bd9Sstevel@tonic-gate * in size. KERNELBASE_ABI_MIN is used as the default KERNELBASE for 196*7c478bd9Sstevel@tonic-gate * physical memory configurations > 4gb. 197*7c478bd9Sstevel@tonic-gate */ 198*7c478bd9Sstevel@tonic-gate #define KERNELBASE_ABI_MIN ADDRESS_C(0xc0000000) 199*7c478bd9Sstevel@tonic-gate 200*7c478bd9Sstevel@tonic-gate /* 201*7c478bd9Sstevel@tonic-gate * Size of the unmapped "red zone" at the very bottom of the kernel's 202*7c478bd9Sstevel@tonic-gate * address space. Since segmap start immediately above the red zone, this 203*7c478bd9Sstevel@tonic-gate * needs to be MAXBSIZE aligned. 204*7c478bd9Sstevel@tonic-gate */ 205*7c478bd9Sstevel@tonic-gate #define KERNEL_REDZONE_SIZE MAXBSIZE 206*7c478bd9Sstevel@tonic-gate 207*7c478bd9Sstevel@tonic-gate /* 208*7c478bd9Sstevel@tonic-gate * This is the last 4MB of the 4G address space. Some psm modules 209*7c478bd9Sstevel@tonic-gate * need this region of virtual address space mapped 1-1 210*7c478bd9Sstevel@tonic-gate */ 211*7c478bd9Sstevel@tonic-gate #define PROMSTART ADDRESS_C(0xffc00000) 212*7c478bd9Sstevel@tonic-gate #define KERNEL_TEXT ADDRESS_C(0xfe800000) 213*7c478bd9Sstevel@tonic-gate 214*7c478bd9Sstevel@tonic-gate /* 215*7c478bd9Sstevel@tonic-gate * Define upper limit on user address space 216*7c478bd9Sstevel@tonic-gate */ 217*7c478bd9Sstevel@tonic-gate #define USERLIMIT KERNELBASE 218*7c478bd9Sstevel@tonic-gate #define USERLIMIT32 USERLIMIT 219*7c478bd9Sstevel@tonic-gate 220*7c478bd9Sstevel@tonic-gate #endif /* __i386 */ 221*7c478bd9Sstevel@tonic-gate 222*7c478bd9Sstevel@tonic-gate #if !defined(_KADB) 223*7c478bd9Sstevel@tonic-gate extern uintptr_t kernelbase, segkmap_start, segmapsize; 224*7c478bd9Sstevel@tonic-gate #endif 225*7c478bd9Sstevel@tonic-gate 226*7c478bd9Sstevel@tonic-gate /* 227*7c478bd9Sstevel@tonic-gate * ARGSBASE is the base virtual address of the range which 228*7c478bd9Sstevel@tonic-gate * the kernel uses to map the arguments for exec. 229*7c478bd9Sstevel@tonic-gate */ 230*7c478bd9Sstevel@tonic-gate #define ARGSBASE PROMSTART 231*7c478bd9Sstevel@tonic-gate 232*7c478bd9Sstevel@tonic-gate /* 233*7c478bd9Sstevel@tonic-gate * reserve space for modules 234*7c478bd9Sstevel@tonic-gate */ 235*7c478bd9Sstevel@tonic-gate #define MODTEXT (1024 * 1024 * 2) 236*7c478bd9Sstevel@tonic-gate #define MODDATA (1024 * 300) 237*7c478bd9Sstevel@tonic-gate 238*7c478bd9Sstevel@tonic-gate /* 239*7c478bd9Sstevel@tonic-gate * The heap has a region allocated from it of HEAPTEXT_SIZE bytes specifically 240*7c478bd9Sstevel@tonic-gate * for module text. 241*7c478bd9Sstevel@tonic-gate */ 242*7c478bd9Sstevel@tonic-gate #define HEAPTEXT_SIZE (64 * 1024 * 1024) /* bytes */ 243*7c478bd9Sstevel@tonic-gate 244*7c478bd9Sstevel@tonic-gate /* 245*7c478bd9Sstevel@tonic-gate * Size of a kernel threads stack. It must be a whole number of pages 246*7c478bd9Sstevel@tonic-gate * since the segment it comes from will only allocate space in pages. 247*7c478bd9Sstevel@tonic-gate */ 248*7c478bd9Sstevel@tonic-gate #define T_STACKSZ 2*PAGESIZE 249*7c478bd9Sstevel@tonic-gate 250*7c478bd9Sstevel@tonic-gate /* 251*7c478bd9Sstevel@tonic-gate * Size of a cpu startup thread stack. (It must be a whole number of pages 252*7c478bd9Sstevel@tonic-gate * since the containing segment only allocates space in pages.) 253*7c478bd9Sstevel@tonic-gate */ 254*7c478bd9Sstevel@tonic-gate 255*7c478bd9Sstevel@tonic-gate #define STARTUP_STKSZ 3*PAGESIZE 256*7c478bd9Sstevel@tonic-gate 257*7c478bd9Sstevel@tonic-gate /* 258*7c478bd9Sstevel@tonic-gate * Bus types 259*7c478bd9Sstevel@tonic-gate */ 260*7c478bd9Sstevel@tonic-gate #define BTISA 1 261*7c478bd9Sstevel@tonic-gate #define BTEISA 2 262*7c478bd9Sstevel@tonic-gate #define BTMCA 3 263*7c478bd9Sstevel@tonic-gate 264*7c478bd9Sstevel@tonic-gate #ifdef __cplusplus 265*7c478bd9Sstevel@tonic-gate } 266*7c478bd9Sstevel@tonic-gate #endif 267*7c478bd9Sstevel@tonic-gate 268*7c478bd9Sstevel@tonic-gate #endif /* _SYS_MACHPARAM_H */ 269