17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 541791439Sandrei * Common Development and Distribution License (the "License"). 641791439Sandrei * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 217c478bd9Sstevel@tonic-gate /* 22ae115bc7Smrj * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 237c478bd9Sstevel@tonic-gate * Use is subject to license terms. 247c478bd9Sstevel@tonic-gate */ 257c478bd9Sstevel@tonic-gate 267c478bd9Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */ 277c478bd9Sstevel@tonic-gate /* All Rights Reserved */ 287c478bd9Sstevel@tonic-gate 297c478bd9Sstevel@tonic-gate 307c478bd9Sstevel@tonic-gate #ifndef _SYS_MACHPARAM_H 317c478bd9Sstevel@tonic-gate #define _SYS_MACHPARAM_H 327c478bd9Sstevel@tonic-gate 337c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 347c478bd9Sstevel@tonic-gate 3541791439Sandrei #if !defined(_ASM) 367c478bd9Sstevel@tonic-gate #include <sys/types.h> 3741791439Sandrei #endif 387c478bd9Sstevel@tonic-gate 397c478bd9Sstevel@tonic-gate #ifdef __cplusplus 407c478bd9Sstevel@tonic-gate extern "C" { 417c478bd9Sstevel@tonic-gate #endif 427c478bd9Sstevel@tonic-gate 437c478bd9Sstevel@tonic-gate #ifndef _ASM 447c478bd9Sstevel@tonic-gate #define ADDRESS_C(c) c ## ul 457c478bd9Sstevel@tonic-gate #else /* _ASM */ 467c478bd9Sstevel@tonic-gate #define ADDRESS_C(c) (c) 477c478bd9Sstevel@tonic-gate #endif /* _ASM */ 487c478bd9Sstevel@tonic-gate 497c478bd9Sstevel@tonic-gate /* 5041791439Sandrei * Machine dependent parameters and limits. 517c478bd9Sstevel@tonic-gate */ 52ae115bc7Smrj 5341791439Sandrei #if defined(__amd64) 5441791439Sandrei #define NCPU 64 /* NBBY * sizeof (ulong_t) for simple cpuset_t */ 5541791439Sandrei #elif defined(__i386) 5641791439Sandrei #define NCPU 32 5741791439Sandrei #endif 587c478bd9Sstevel@tonic-gate 597c478bd9Sstevel@tonic-gate /* 607c478bd9Sstevel@tonic-gate * The value defined below could grow to 16. hat structure and 617c478bd9Sstevel@tonic-gate * page_t have room for 16 nodes. 627c478bd9Sstevel@tonic-gate */ 637c478bd9Sstevel@tonic-gate #define MAXNODES 4 647c478bd9Sstevel@tonic-gate #define NUMA_NODEMASK 0x0f 657c478bd9Sstevel@tonic-gate 667c478bd9Sstevel@tonic-gate 677c478bd9Sstevel@tonic-gate /* 687c478bd9Sstevel@tonic-gate * Define the FPU symbol if we could run on a machine with an external 697c478bd9Sstevel@tonic-gate * FPU (i.e. not integrated with the normal machine state like the vax). 707c478bd9Sstevel@tonic-gate * 717c478bd9Sstevel@tonic-gate * The fpu is defined in the architecture manual, and the kernel hides 727c478bd9Sstevel@tonic-gate * its absence if it is not present, that's pretty integrated, no? 737c478bd9Sstevel@tonic-gate */ 747c478bd9Sstevel@tonic-gate 757c478bd9Sstevel@tonic-gate /* supported page sizes */ 767c478bd9Sstevel@tonic-gate #define MMU_PAGE_SIZES 2 777c478bd9Sstevel@tonic-gate 787c478bd9Sstevel@tonic-gate /* 797c478bd9Sstevel@tonic-gate * MMU_PAGES* describes the physical page size used by the mapping hardware. 807c478bd9Sstevel@tonic-gate * PAGES* describes the logical page size used by the system. 817c478bd9Sstevel@tonic-gate */ 827c478bd9Sstevel@tonic-gate 837c478bd9Sstevel@tonic-gate #define MMU_PAGESIZE 0x1000 /* 4096 bytes */ 847c478bd9Sstevel@tonic-gate #define MMU_PAGESHIFT 12 /* log2(MMU_PAGESIZE) */ 8541791439Sandrei 8641791439Sandrei #if !defined(_ASM) 877c478bd9Sstevel@tonic-gate #define MMU_PAGEOFFSET (MMU_PAGESIZE-1) /* Mask of address bits in page */ 88ae115bc7Smrj #else /* _ASM */ 8941791439Sandrei #define MMU_PAGEOFFSET _CONST(MMU_PAGESIZE-1) /* assembler lameness */ 90ae115bc7Smrj #endif /* _ASM */ 9141791439Sandrei 927c478bd9Sstevel@tonic-gate #define MMU_PAGEMASK (~MMU_PAGEOFFSET) 937c478bd9Sstevel@tonic-gate 947c478bd9Sstevel@tonic-gate #define PAGESIZE 0x1000 /* All of the above, for logical */ 957c478bd9Sstevel@tonic-gate #define PAGESHIFT 12 967c478bd9Sstevel@tonic-gate #define PAGEOFFSET (PAGESIZE - 1) 977c478bd9Sstevel@tonic-gate #define PAGEMASK (~PAGEOFFSET) 987c478bd9Sstevel@tonic-gate 997c478bd9Sstevel@tonic-gate /* 1007c478bd9Sstevel@tonic-gate * DATA_ALIGN is used to define the alignment of the Unix data segment. 1017c478bd9Sstevel@tonic-gate */ 1027c478bd9Sstevel@tonic-gate #define DATA_ALIGN PAGESIZE 1037c478bd9Sstevel@tonic-gate 1047c478bd9Sstevel@tonic-gate /* 10541791439Sandrei * DEFAULT KERNEL THREAD stack size (in pages). 1067c478bd9Sstevel@tonic-gate */ 1077c478bd9Sstevel@tonic-gate #if defined(__amd64) 10841791439Sandrei #define DEFAULTSTKSZ_NPGS 5 1097c478bd9Sstevel@tonic-gate #elif defined(__i386) 11041791439Sandrei #define DEFAULTSTKSZ_NPGS 2 1117c478bd9Sstevel@tonic-gate #endif 1127c478bd9Sstevel@tonic-gate 11341791439Sandrei #if !defined(_ASM) 11441791439Sandrei #define DEFAULTSTKSZ (DEFAULTSTKSZ_NPGS * PAGESIZE) 11541791439Sandrei #else /* !_ASM */ 11641791439Sandrei #define DEFAULTSTKSZ _MUL(DEFAULTSTKSZ_NPGS, PAGESIZE) /* as(1) lameness */ 11741791439Sandrei #endif /* !_ASM */ 11841791439Sandrei 1197c478bd9Sstevel@tonic-gate /* 1207c478bd9Sstevel@tonic-gate * KERNELBASE is the virtual address at which the kernel segments start in 1217c478bd9Sstevel@tonic-gate * all contexts. 1227c478bd9Sstevel@tonic-gate * 1237c478bd9Sstevel@tonic-gate * KERNELBASE is not fixed on 32-bit systems. The value of KERNELBASE can 1247c478bd9Sstevel@tonic-gate * change with installed memory and the eprom variable 'eprom_kernelbase'. 1257c478bd9Sstevel@tonic-gate * This value is fixed on 64-bit systems. 1267c478bd9Sstevel@tonic-gate * 1277c478bd9Sstevel@tonic-gate * common/conf/param.c requires a compile time defined value for KERNELBASE 1287c478bd9Sstevel@tonic-gate * which it saves in the variable _kernelbase. If kernelbase is modifed on 1297c478bd9Sstevel@tonic-gate * a 32-bit system, _kernelbase will be updated with the new value in 1307c478bd9Sstevel@tonic-gate * i86pc/os/startup.c. 1317c478bd9Sstevel@tonic-gate * 1327c478bd9Sstevel@tonic-gate * i86 and i86pc files use kernelbase instead of KERNELBASE, which is 1337c478bd9Sstevel@tonic-gate * initialized in i86pc/os/startup.c. 1347c478bd9Sstevel@tonic-gate */ 135ae115bc7Smrj #define KERNEL_TEXT_amd64 UINT64_C(0xfffffffffb800000) 136ae115bc7Smrj #define KERNEL_TEXT_i386 ADDRESS_C(0xfe800000) 1377c478bd9Sstevel@tonic-gate 1387c478bd9Sstevel@tonic-gate #if defined(__amd64) 1397c478bd9Sstevel@tonic-gate 1407c478bd9Sstevel@tonic-gate #define KERNELBASE ADDRESS_C(0xfffffd8000000000) 1417c478bd9Sstevel@tonic-gate 1427c478bd9Sstevel@tonic-gate /* 1437c478bd9Sstevel@tonic-gate * Size of the unmapped "red zone" at the very bottom of the kernel's 1447c478bd9Sstevel@tonic-gate * address space. Corresponds to 1 slot in the toplevel pagetable. 1457c478bd9Sstevel@tonic-gate */ 1467c478bd9Sstevel@tonic-gate #define KERNEL_REDZONE_SIZE ((uintptr_t)1 << 39) 1477c478bd9Sstevel@tonic-gate 1487c478bd9Sstevel@tonic-gate /* 1497c478bd9Sstevel@tonic-gate * Base of 'core' heap area, which is used for kernel and module text/data 1507c478bd9Sstevel@tonic-gate * that must be within a 2GB range to allow for rip-relative addressing. 1517c478bd9Sstevel@tonic-gate * 1527c478bd9Sstevel@tonic-gate * XX64: because vmx and boot cannot be trusted to stay in a 1GB playpen at 1537c478bd9Sstevel@tonic-gate * the bottom of the upper 4GB range, we need to restrict the core heap to 1547c478bd9Sstevel@tonic-gate * the top 1GB for now. 1557c478bd9Sstevel@tonic-gate */ 1567c478bd9Sstevel@tonic-gate #define COREHEAP_BASE ADDRESS_C(0xffffffffc0000000) 1577c478bd9Sstevel@tonic-gate 1587c478bd9Sstevel@tonic-gate /* 1597c478bd9Sstevel@tonic-gate * Beginning of the segkpm window 1607c478bd9Sstevel@tonic-gate */ 1617c478bd9Sstevel@tonic-gate #define SEGKPM_BASE ADDRESS_C(0xfffffe0000000000) 1627c478bd9Sstevel@tonic-gate 1637c478bd9Sstevel@tonic-gate /* 164ae115bc7Smrj * This is valloc_base, above seg_kpm, but below everything else 165ae115bc7Smrj */ 166ae115bc7Smrj #define VALLOC_BASE ADDRESS_C(0xffffff0000000000) 167ae115bc7Smrj 168ae115bc7Smrj /* 1697c478bd9Sstevel@tonic-gate * default and boundary sizes for segkp 1707c478bd9Sstevel@tonic-gate */ 1717c478bd9Sstevel@tonic-gate #define SEGKPDEFSIZE (2L * 1024L * 1024L * 1024L) /* 2G */ 1727c478bd9Sstevel@tonic-gate #define SEGKPMAXSIZE (8L * 1024L * 1024L * 1024L) /* 8G */ 1737c478bd9Sstevel@tonic-gate #define SEGKPMINSIZE (200L * 1024 * 1024L) /* 200M */ 1747c478bd9Sstevel@tonic-gate 1757c478bd9Sstevel@tonic-gate /* 176ad23a2dbSjohansen * minimum size for segzio 177ad23a2dbSjohansen */ 178ad23a2dbSjohansen #define SEGZIOMINSIZE (400L * 1024 * 1024L) /* 400M */ 179*a778305aSjohansen #define SEGZIOMAXSIZE (512L * 1024L * 1024L * 1024L) /* 512G */ 180ad23a2dbSjohansen 181ad23a2dbSjohansen /* 182ae115bc7Smrj * During intial boot we limit heap to the top 4Gig. 1837c478bd9Sstevel@tonic-gate */ 184ae115bc7Smrj #define BOOT_KERNELHEAP_BASE ADDRESS_C(0xffffffff00000000) 1857c478bd9Sstevel@tonic-gate 1867c478bd9Sstevel@tonic-gate /* 1877c478bd9Sstevel@tonic-gate * VMWare works best if we don't use the top 64Meg of memory for amd64. 1887c478bd9Sstevel@tonic-gate * Set KERNEL_TEXT to top_o_memory - 64Meg - 8 Meg for 8Meg of nucleus pages. 1897c478bd9Sstevel@tonic-gate */ 1907c478bd9Sstevel@tonic-gate #define PROMSTART ADDRESS_C(0xffc00000) 191ae115bc7Smrj #define KERNEL_TEXT KERNEL_TEXT_amd64 192ae115bc7Smrj 193ae115bc7Smrj /* 194ae115bc7Smrj * Virtual address range available to the debugger 195ae115bc7Smrj */ 196ae115bc7Smrj #define SEGDEBUGBASE ADDRESS_C(0xffffffffff800000) 197ae115bc7Smrj #define SEGDEBUGSIZE ADDRESS_C(0x400000) 1987c478bd9Sstevel@tonic-gate 1997c478bd9Sstevel@tonic-gate /* 2007c478bd9Sstevel@tonic-gate * Define upper limit on user address space 2017c478bd9Sstevel@tonic-gate * 2027c478bd9Sstevel@tonic-gate * In amd64, the upper limit on a 64-bit user address space is 1 large page 2037c478bd9Sstevel@tonic-gate * (2MB) below kernelbase. The upper limit for a 32-bit user address space 2047c478bd9Sstevel@tonic-gate * is 1 small page (4KB) below the top of the 32-bit range. The 64-bit 2057c478bd9Sstevel@tonic-gate * limit give dtrace the red zone it needs below kernelbase. The 32-bit 2067c478bd9Sstevel@tonic-gate * limit gives us a small red zone to detect address-space overruns in a 2077c478bd9Sstevel@tonic-gate * user program. 2087c478bd9Sstevel@tonic-gate */ 2097c478bd9Sstevel@tonic-gate #define USERLIMIT ADDRESS_C(0xfffffd7fffe00000) 2107c478bd9Sstevel@tonic-gate #ifdef bug_5074717_is_fixed 2117c478bd9Sstevel@tonic-gate #define USERLIMIT32 ADDRESS_C(0xfffff000) 2127c478bd9Sstevel@tonic-gate #else 2137c478bd9Sstevel@tonic-gate #define USERLIMIT32 ADDRESS_C(0xfefff000) 2147c478bd9Sstevel@tonic-gate #endif 2157c478bd9Sstevel@tonic-gate 2167c478bd9Sstevel@tonic-gate #elif defined(__i386) 2177c478bd9Sstevel@tonic-gate 2187c478bd9Sstevel@tonic-gate #ifdef DEBUG 2197c478bd9Sstevel@tonic-gate #define KERNELBASE ADDRESS_C(0xc8000000) 2207c478bd9Sstevel@tonic-gate #else 2217c478bd9Sstevel@tonic-gate #define KERNELBASE ADDRESS_C(0xd4000000) 2227c478bd9Sstevel@tonic-gate #endif 2237c478bd9Sstevel@tonic-gate 2247c478bd9Sstevel@tonic-gate #define KERNELBASE_MAX ADDRESS_C(0xe0000000) 2257c478bd9Sstevel@tonic-gate 2267c478bd9Sstevel@tonic-gate /* 2277c478bd9Sstevel@tonic-gate * The i386 ABI requires that the user address space be at least 3Gb 2287c478bd9Sstevel@tonic-gate * in size. KERNELBASE_ABI_MIN is used as the default KERNELBASE for 2297c478bd9Sstevel@tonic-gate * physical memory configurations > 4gb. 2307c478bd9Sstevel@tonic-gate */ 2317c478bd9Sstevel@tonic-gate #define KERNELBASE_ABI_MIN ADDRESS_C(0xc0000000) 2327c478bd9Sstevel@tonic-gate 2337c478bd9Sstevel@tonic-gate /* 2347c478bd9Sstevel@tonic-gate * Size of the unmapped "red zone" at the very bottom of the kernel's 2357c478bd9Sstevel@tonic-gate * address space. Since segmap start immediately above the red zone, this 2367c478bd9Sstevel@tonic-gate * needs to be MAXBSIZE aligned. 2377c478bd9Sstevel@tonic-gate */ 2387c478bd9Sstevel@tonic-gate #define KERNEL_REDZONE_SIZE MAXBSIZE 2397c478bd9Sstevel@tonic-gate 2407c478bd9Sstevel@tonic-gate /* 2417c478bd9Sstevel@tonic-gate * This is the last 4MB of the 4G address space. Some psm modules 2427c478bd9Sstevel@tonic-gate * need this region of virtual address space mapped 1-1 2437c478bd9Sstevel@tonic-gate */ 2447c478bd9Sstevel@tonic-gate #define PROMSTART ADDRESS_C(0xffc00000) 245ae115bc7Smrj #define KERNEL_TEXT KERNEL_TEXT_i386 246ae115bc7Smrj 247ae115bc7Smrj /* 248ae115bc7Smrj * Virtual address range available to the debugger 249ae115bc7Smrj * We place it just above the kernel text (4M) and kernel data (4M). 250ae115bc7Smrj */ 251ae115bc7Smrj #define SEGDEBUGBASE (KERNEL_TEXT + ADDRESS_C(0x800000)) 252ae115bc7Smrj #define SEGDEBUGSIZE ADDRESS_C(0x400000) 2537c478bd9Sstevel@tonic-gate 2547c478bd9Sstevel@tonic-gate /* 2557c478bd9Sstevel@tonic-gate * Define upper limit on user address space 2567c478bd9Sstevel@tonic-gate */ 2577c478bd9Sstevel@tonic-gate #define USERLIMIT KERNELBASE 2587c478bd9Sstevel@tonic-gate #define USERLIMIT32 USERLIMIT 2597c478bd9Sstevel@tonic-gate 2607c478bd9Sstevel@tonic-gate #endif /* __i386 */ 2617c478bd9Sstevel@tonic-gate 262ae115bc7Smrj /* 263ae115bc7Smrj * Reserve two pages just below KERNEL_TEXT for the GDT and debug info page. 264ae115bc7Smrj */ 265ae115bc7Smrj #if !defined(_ASM) 266ae115bc7Smrj #define MISC_VA_BASE (KERNEL_TEXT - MMU_PAGESIZE * 2) 267ae115bc7Smrj #define GDT_VA (MISC_VA_BASE) 268ae115bc7Smrj #define DEBUG_INFO_VA (MISC_VA_BASE + MMU_PAGESIZE) 269ae115bc7Smrj #endif /* !_ASM */ 270ae115bc7Smrj 271ae115bc7Smrj #if !defined(_ASM) && !defined(_KMDB) 272ae115bc7Smrj extern uintptr_t kernelbase, segmap_start, segmapsize; 2737c478bd9Sstevel@tonic-gate #endif 2747c478bd9Sstevel@tonic-gate 2757c478bd9Sstevel@tonic-gate /* 2767c478bd9Sstevel@tonic-gate * ARGSBASE is the base virtual address of the range which 2777c478bd9Sstevel@tonic-gate * the kernel uses to map the arguments for exec. 2787c478bd9Sstevel@tonic-gate */ 2797c478bd9Sstevel@tonic-gate #define ARGSBASE PROMSTART 2807c478bd9Sstevel@tonic-gate 2817c478bd9Sstevel@tonic-gate /* 2827c478bd9Sstevel@tonic-gate * reserve space for modules 2837c478bd9Sstevel@tonic-gate */ 2847c478bd9Sstevel@tonic-gate #define MODTEXT (1024 * 1024 * 2) 2857c478bd9Sstevel@tonic-gate #define MODDATA (1024 * 300) 2867c478bd9Sstevel@tonic-gate 2877c478bd9Sstevel@tonic-gate /* 2887c478bd9Sstevel@tonic-gate * The heap has a region allocated from it of HEAPTEXT_SIZE bytes specifically 2897c478bd9Sstevel@tonic-gate * for module text. 2907c478bd9Sstevel@tonic-gate */ 2917c478bd9Sstevel@tonic-gate #define HEAPTEXT_SIZE (64 * 1024 * 1024) /* bytes */ 2927c478bd9Sstevel@tonic-gate 2937c478bd9Sstevel@tonic-gate /* 2947c478bd9Sstevel@tonic-gate * Size of a kernel threads stack. It must be a whole number of pages 2957c478bd9Sstevel@tonic-gate * since the segment it comes from will only allocate space in pages. 2967c478bd9Sstevel@tonic-gate */ 2977c478bd9Sstevel@tonic-gate #define T_STACKSZ 2*PAGESIZE 2987c478bd9Sstevel@tonic-gate 2997c478bd9Sstevel@tonic-gate /* 3007c478bd9Sstevel@tonic-gate * Size of a cpu startup thread stack. (It must be a whole number of pages 3017c478bd9Sstevel@tonic-gate * since the containing segment only allocates space in pages.) 3027c478bd9Sstevel@tonic-gate */ 3037c478bd9Sstevel@tonic-gate 3047c478bd9Sstevel@tonic-gate #define STARTUP_STKSZ 3*PAGESIZE 3057c478bd9Sstevel@tonic-gate 3067c478bd9Sstevel@tonic-gate /* 3077c478bd9Sstevel@tonic-gate * Bus types 3087c478bd9Sstevel@tonic-gate */ 3097c478bd9Sstevel@tonic-gate #define BTISA 1 3107c478bd9Sstevel@tonic-gate #define BTEISA 2 3117c478bd9Sstevel@tonic-gate #define BTMCA 3 3127c478bd9Sstevel@tonic-gate 3137c478bd9Sstevel@tonic-gate #ifdef __cplusplus 3147c478bd9Sstevel@tonic-gate } 3157c478bd9Sstevel@tonic-gate #endif 3167c478bd9Sstevel@tonic-gate 3177c478bd9Sstevel@tonic-gate #endif /* _SYS_MACHPARAM_H */ 318