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 * 123*35b1ab99Sjosephb * KERNELBASE is not fixed. The value of KERNELBASE can change with 124*35b1ab99Sjosephb * installed memory or on 32 bit systems the eprom variable 'eprom_kernelbase'. 1257c478bd9Sstevel@tonic-gate * 126*35b1ab99Sjosephb * common/conf/param.c requires a compile time defined value for KERNELBASE. 127*35b1ab99Sjosephb * This value is save in the variable _kernelbase. _kernelbase may then be 128*35b1ab99Sjosephb * modified with to a different value in i86pc/os/startup.c. 1297c478bd9Sstevel@tonic-gate * 130*35b1ab99Sjosephb * Most code should be using kernelbase, which resolves to a reference to 131*35b1ab99Sjosephb * _kernelbase. 1327c478bd9Sstevel@tonic-gate */ 133ae115bc7Smrj #define KERNEL_TEXT_amd64 UINT64_C(0xfffffffffb800000) 134ae115bc7Smrj #define KERNEL_TEXT_i386 ADDRESS_C(0xfe800000) 1357c478bd9Sstevel@tonic-gate 1367c478bd9Sstevel@tonic-gate #if defined(__amd64) 1377c478bd9Sstevel@tonic-gate 1387c478bd9Sstevel@tonic-gate #define KERNELBASE ADDRESS_C(0xfffffd8000000000) 1397c478bd9Sstevel@tonic-gate 1407c478bd9Sstevel@tonic-gate /* 1417c478bd9Sstevel@tonic-gate * Size of the unmapped "red zone" at the very bottom of the kernel's 1427c478bd9Sstevel@tonic-gate * address space. Corresponds to 1 slot in the toplevel pagetable. 1437c478bd9Sstevel@tonic-gate */ 1447c478bd9Sstevel@tonic-gate #define KERNEL_REDZONE_SIZE ((uintptr_t)1 << 39) 1457c478bd9Sstevel@tonic-gate 1467c478bd9Sstevel@tonic-gate /* 1477c478bd9Sstevel@tonic-gate * Base of 'core' heap area, which is used for kernel and module text/data 1487c478bd9Sstevel@tonic-gate * that must be within a 2GB range to allow for rip-relative addressing. 1497c478bd9Sstevel@tonic-gate */ 1507c478bd9Sstevel@tonic-gate #define COREHEAP_BASE ADDRESS_C(0xffffffffc0000000) 1517c478bd9Sstevel@tonic-gate 1527c478bd9Sstevel@tonic-gate /* 153*35b1ab99Sjosephb * Beginning of the segkpm window. A lower value than this is used if 154*35b1ab99Sjosephb * physical addresses exceed 1TB. See i86pc/os/startup.c 1557c478bd9Sstevel@tonic-gate */ 1567c478bd9Sstevel@tonic-gate #define SEGKPM_BASE ADDRESS_C(0xfffffe0000000000) 1577c478bd9Sstevel@tonic-gate 1587c478bd9Sstevel@tonic-gate /* 159*35b1ab99Sjosephb * This is valloc_base, above seg_kpm, but below everything else. 160*35b1ab99Sjosephb * A lower value than this may be used if SEGKPM_BASE is adjusted. 161*35b1ab99Sjosephb * See i86pc/os/startup.c 162ae115bc7Smrj */ 163ae115bc7Smrj #define VALLOC_BASE ADDRESS_C(0xffffff0000000000) 164ae115bc7Smrj 165ae115bc7Smrj /* 1667c478bd9Sstevel@tonic-gate * default and boundary sizes for segkp 1677c478bd9Sstevel@tonic-gate */ 1687c478bd9Sstevel@tonic-gate #define SEGKPDEFSIZE (2L * 1024L * 1024L * 1024L) /* 2G */ 1697c478bd9Sstevel@tonic-gate #define SEGKPMAXSIZE (8L * 1024L * 1024L * 1024L) /* 8G */ 1707c478bd9Sstevel@tonic-gate #define SEGKPMINSIZE (200L * 1024 * 1024L) /* 200M */ 1717c478bd9Sstevel@tonic-gate 1727c478bd9Sstevel@tonic-gate /* 173ad23a2dbSjohansen * minimum size for segzio 174ad23a2dbSjohansen */ 175ad23a2dbSjohansen #define SEGZIOMINSIZE (400L * 1024 * 1024L) /* 400M */ 176a778305aSjohansen #define SEGZIOMAXSIZE (512L * 1024L * 1024L * 1024L) /* 512G */ 177ad23a2dbSjohansen 178ad23a2dbSjohansen /* 179ae115bc7Smrj * During intial boot we limit heap to the top 4Gig. 1807c478bd9Sstevel@tonic-gate */ 181ae115bc7Smrj #define BOOT_KERNELHEAP_BASE ADDRESS_C(0xffffffff00000000) 1827c478bd9Sstevel@tonic-gate 1837c478bd9Sstevel@tonic-gate /* 1847c478bd9Sstevel@tonic-gate * VMWare works best if we don't use the top 64Meg of memory for amd64. 1857c478bd9Sstevel@tonic-gate * Set KERNEL_TEXT to top_o_memory - 64Meg - 8 Meg for 8Meg of nucleus pages. 1867c478bd9Sstevel@tonic-gate */ 1877c478bd9Sstevel@tonic-gate #define PROMSTART ADDRESS_C(0xffc00000) 188ae115bc7Smrj #define KERNEL_TEXT KERNEL_TEXT_amd64 189ae115bc7Smrj 190ae115bc7Smrj /* 191ae115bc7Smrj * Virtual address range available to the debugger 192ae115bc7Smrj */ 193ae115bc7Smrj #define SEGDEBUGBASE ADDRESS_C(0xffffffffff800000) 194ae115bc7Smrj #define SEGDEBUGSIZE ADDRESS_C(0x400000) 1957c478bd9Sstevel@tonic-gate 1967c478bd9Sstevel@tonic-gate /* 1977c478bd9Sstevel@tonic-gate * Define upper limit on user address space 1987c478bd9Sstevel@tonic-gate * 1997c478bd9Sstevel@tonic-gate * In amd64, the upper limit on a 64-bit user address space is 1 large page 2007c478bd9Sstevel@tonic-gate * (2MB) below kernelbase. The upper limit for a 32-bit user address space 2017c478bd9Sstevel@tonic-gate * is 1 small page (4KB) below the top of the 32-bit range. The 64-bit 2027c478bd9Sstevel@tonic-gate * limit give dtrace the red zone it needs below kernelbase. The 32-bit 2037c478bd9Sstevel@tonic-gate * limit gives us a small red zone to detect address-space overruns in a 2047c478bd9Sstevel@tonic-gate * user program. 2057c478bd9Sstevel@tonic-gate */ 2067c478bd9Sstevel@tonic-gate #define USERLIMIT ADDRESS_C(0xfffffd7fffe00000) 2077c478bd9Sstevel@tonic-gate #ifdef bug_5074717_is_fixed 2087c478bd9Sstevel@tonic-gate #define USERLIMIT32 ADDRESS_C(0xfffff000) 2097c478bd9Sstevel@tonic-gate #else 2107c478bd9Sstevel@tonic-gate #define USERLIMIT32 ADDRESS_C(0xfefff000) 2117c478bd9Sstevel@tonic-gate #endif 2127c478bd9Sstevel@tonic-gate 2137c478bd9Sstevel@tonic-gate #elif defined(__i386) 2147c478bd9Sstevel@tonic-gate 2157c478bd9Sstevel@tonic-gate #ifdef DEBUG 2167c478bd9Sstevel@tonic-gate #define KERNELBASE ADDRESS_C(0xc8000000) 2177c478bd9Sstevel@tonic-gate #else 2187c478bd9Sstevel@tonic-gate #define KERNELBASE ADDRESS_C(0xd4000000) 2197c478bd9Sstevel@tonic-gate #endif 2207c478bd9Sstevel@tonic-gate 2217c478bd9Sstevel@tonic-gate #define KERNELBASE_MAX ADDRESS_C(0xe0000000) 2227c478bd9Sstevel@tonic-gate 2237c478bd9Sstevel@tonic-gate /* 2247c478bd9Sstevel@tonic-gate * The i386 ABI requires that the user address space be at least 3Gb 2257c478bd9Sstevel@tonic-gate * in size. KERNELBASE_ABI_MIN is used as the default KERNELBASE for 2267c478bd9Sstevel@tonic-gate * physical memory configurations > 4gb. 2277c478bd9Sstevel@tonic-gate */ 2287c478bd9Sstevel@tonic-gate #define KERNELBASE_ABI_MIN ADDRESS_C(0xc0000000) 2297c478bd9Sstevel@tonic-gate 2307c478bd9Sstevel@tonic-gate /* 2317c478bd9Sstevel@tonic-gate * Size of the unmapped "red zone" at the very bottom of the kernel's 2327c478bd9Sstevel@tonic-gate * address space. Since segmap start immediately above the red zone, this 2337c478bd9Sstevel@tonic-gate * needs to be MAXBSIZE aligned. 2347c478bd9Sstevel@tonic-gate */ 2357c478bd9Sstevel@tonic-gate #define KERNEL_REDZONE_SIZE MAXBSIZE 2367c478bd9Sstevel@tonic-gate 2377c478bd9Sstevel@tonic-gate /* 2387c478bd9Sstevel@tonic-gate * This is the last 4MB of the 4G address space. Some psm modules 2397c478bd9Sstevel@tonic-gate * need this region of virtual address space mapped 1-1 2407c478bd9Sstevel@tonic-gate */ 2417c478bd9Sstevel@tonic-gate #define PROMSTART ADDRESS_C(0xffc00000) 242ae115bc7Smrj #define KERNEL_TEXT KERNEL_TEXT_i386 243ae115bc7Smrj 244ae115bc7Smrj /* 245ae115bc7Smrj * Virtual address range available to the debugger 246ae115bc7Smrj * We place it just above the kernel text (4M) and kernel data (4M). 247ae115bc7Smrj */ 248ae115bc7Smrj #define SEGDEBUGBASE (KERNEL_TEXT + ADDRESS_C(0x800000)) 249ae115bc7Smrj #define SEGDEBUGSIZE ADDRESS_C(0x400000) 2507c478bd9Sstevel@tonic-gate 2517c478bd9Sstevel@tonic-gate /* 2527c478bd9Sstevel@tonic-gate * Define upper limit on user address space 2537c478bd9Sstevel@tonic-gate */ 2547c478bd9Sstevel@tonic-gate #define USERLIMIT KERNELBASE 2557c478bd9Sstevel@tonic-gate #define USERLIMIT32 USERLIMIT 2567c478bd9Sstevel@tonic-gate 2577c478bd9Sstevel@tonic-gate #endif /* __i386 */ 2587c478bd9Sstevel@tonic-gate 259ae115bc7Smrj /* 260ae115bc7Smrj * Reserve two pages just below KERNEL_TEXT for the GDT and debug info page. 261ae115bc7Smrj */ 262ae115bc7Smrj #if !defined(_ASM) 263ae115bc7Smrj #define MISC_VA_BASE (KERNEL_TEXT - MMU_PAGESIZE * 2) 264ae115bc7Smrj #define GDT_VA (MISC_VA_BASE) 265ae115bc7Smrj #define DEBUG_INFO_VA (MISC_VA_BASE + MMU_PAGESIZE) 266ae115bc7Smrj #endif /* !_ASM */ 267ae115bc7Smrj 268ae115bc7Smrj #if !defined(_ASM) && !defined(_KMDB) 269ae115bc7Smrj extern uintptr_t kernelbase, segmap_start, segmapsize; 2707c478bd9Sstevel@tonic-gate #endif 2717c478bd9Sstevel@tonic-gate 2727c478bd9Sstevel@tonic-gate /* 2737c478bd9Sstevel@tonic-gate * ARGSBASE is the base virtual address of the range which 2747c478bd9Sstevel@tonic-gate * the kernel uses to map the arguments for exec. 2757c478bd9Sstevel@tonic-gate */ 2767c478bd9Sstevel@tonic-gate #define ARGSBASE PROMSTART 2777c478bd9Sstevel@tonic-gate 2787c478bd9Sstevel@tonic-gate /* 2797c478bd9Sstevel@tonic-gate * reserve space for modules 2807c478bd9Sstevel@tonic-gate */ 2817c478bd9Sstevel@tonic-gate #define MODTEXT (1024 * 1024 * 2) 2827c478bd9Sstevel@tonic-gate #define MODDATA (1024 * 300) 2837c478bd9Sstevel@tonic-gate 2847c478bd9Sstevel@tonic-gate /* 2857c478bd9Sstevel@tonic-gate * The heap has a region allocated from it of HEAPTEXT_SIZE bytes specifically 2867c478bd9Sstevel@tonic-gate * for module text. 2877c478bd9Sstevel@tonic-gate */ 2887c478bd9Sstevel@tonic-gate #define HEAPTEXT_SIZE (64 * 1024 * 1024) /* bytes */ 2897c478bd9Sstevel@tonic-gate 2907c478bd9Sstevel@tonic-gate /* 2917c478bd9Sstevel@tonic-gate * Size of a kernel threads stack. It must be a whole number of pages 2927c478bd9Sstevel@tonic-gate * since the segment it comes from will only allocate space in pages. 2937c478bd9Sstevel@tonic-gate */ 2947c478bd9Sstevel@tonic-gate #define T_STACKSZ 2*PAGESIZE 2957c478bd9Sstevel@tonic-gate 2967c478bd9Sstevel@tonic-gate /* 2977c478bd9Sstevel@tonic-gate * Size of a cpu startup thread stack. (It must be a whole number of pages 2987c478bd9Sstevel@tonic-gate * since the containing segment only allocates space in pages.) 2997c478bd9Sstevel@tonic-gate */ 3007c478bd9Sstevel@tonic-gate 3017c478bd9Sstevel@tonic-gate #define STARTUP_STKSZ 3*PAGESIZE 3027c478bd9Sstevel@tonic-gate 3037c478bd9Sstevel@tonic-gate /* 3047c478bd9Sstevel@tonic-gate * Bus types 3057c478bd9Sstevel@tonic-gate */ 3067c478bd9Sstevel@tonic-gate #define BTISA 1 3077c478bd9Sstevel@tonic-gate #define BTEISA 2 3087c478bd9Sstevel@tonic-gate #define BTMCA 3 3097c478bd9Sstevel@tonic-gate 3107c478bd9Sstevel@tonic-gate #ifdef __cplusplus 3117c478bd9Sstevel@tonic-gate } 3127c478bd9Sstevel@tonic-gate #endif 3137c478bd9Sstevel@tonic-gate 3147c478bd9Sstevel@tonic-gate #endif /* _SYS_MACHPARAM_H */ 315