Return to vmparam.h CVS log

Up to [local] / sys / arch / amd64 / include

Annotation of sys/arch/amd64/include/vmparam.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: vmparam.h,v 1.7 2007/05/15 16:38:33 art Exp $ */
                      2: /*     $NetBSD: vmparam.h,v 1.1 2003/04/26 18:39:49 fvdl Exp $ */
                      3:
                      4: /*-
                      5:  * Copyright (c) 1990 The Regents of the University of California.
                      6:  * All rights reserved.
                      7:  *
                      8:  * This code is derived from software contributed to Berkeley by
                      9:  * William Jolitz.
                     10:  *
                     11:  * Redistribution and use in source and binary forms, with or without
                     12:  * modification, are permitted provided that the following conditions
                     13:  * are met:
                     14:  * 1. Redistributions of source code must retain the above copyright
                     15:  *    notice, this list of conditions and the following disclaimer.
                     16:  * 2. Redistributions in binary form must reproduce the above copyright
                     17:  *    notice, this list of conditions and the following disclaimer in the
                     18:  *    documentation and/or other materials provided with the distribution.
                     19:  * 3. Neither the name of the University nor the names of its contributors
                     20:  *    may be used to endorse or promote products derived from this software
                     21:  *    without specific prior written permission.
                     22:  *
                     23:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     24:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     25:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     26:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     27:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     28:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     29:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     30:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     31:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     32:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     33:  * SUCH DAMAGE.
                     34:  *
                     35:  *     @(#)vmparam.h   5.9 (Berkeley) 5/12/91
                     36:  */
                     37:
                     38: #ifndef _VMPARAM_H_
                     39: #define _VMPARAM_H_
                     40:
                     41: /*
                     42:  * Machine dependent constants for amd64.
                     43:  */
                     44:
                     45: /*
                     46:  * USRSTACK is the top (end) of the user stack. Immediately above the
                     47:  * user stack resides the user structure, which is UPAGES long and contains
                     48:  * the kernel stack.
                     49:  *
                     50:  * Immediately after the user structure is the page table map, and then
                     51:  * kernel address space.
                     52:  */
                     53: #define        USRSTACK        VM_MAXUSER_ADDRESS
                     54:
                     55: /*
                     56:  * Virtual memory related constants, all in bytes
                     57:  */
                     58: #define        MAXTSIZ         (64*1024*1024)          /* max text size */
                     59: #ifndef DFLDSIZ
                     60: #define        DFLDSIZ         (128*1024*1024)         /* initial data size limit */
                     61: #endif
                     62: #ifndef MAXDSIZ
                     63: #define        MAXDSIZ         (1*1024*1024*1024)      /* max data size */
                     64: #endif
                     65: #ifndef        DFLSSIZ
                     66: #define        DFLSSIZ         (2*1024*1024)           /* initial stack size limit */
                     67: #endif
                     68: #ifndef        MAXSSIZ
                     69: #define        MAXSSIZ         (32*1024*1024)          /* max stack size */
                     70: #endif
                     71:
                     72: #define STACKGAP_RANDOM        256*1024
                     73:
                     74: /*
                     75:  * Size of shared memory map
                     76:  */
                     77: #ifndef SHMMAXPGS
                     78: #define SHMMAXPGS      8192
                     79: #endif
                     80:
                     81: /*
                     82:  * Size of User Raw I/O map
                     83:  */
                     84: #define        USRIOSIZE       300
                     85:
                     86: /*
                     87:  * Mach derived constants
                     88:  */
                     89:
                     90: /* user/kernel map constants */
                     91: #define VM_MIN_ADDRESS         0
                     92: #define VM_MAXUSER_ADDRESS     0x00007f7fffffc000
                     93: #define VM_MAX_ADDRESS         0x00007fbfdfeff000
                     94: #define VM_MIN_KERNEL_ADDRESS  0xffff800000000000
                     95: #define VM_MAX_KERNEL_ADDRESS  0xffff800100000000
                     96:
                     97: #define VM_MAXUSER_ADDRESS32   0xffffc000
                     98:
                     99: /* virtual sizes (bytes) for various kernel submaps */
                    100: #define VM_PHYS_SIZE           (USRIOSIZE*PAGE_SIZE)
                    101:
                    102: #define VM_PHYSSEG_MAX         16      /* actually we could have this many segments */
                    103: #define VM_PHYSSEG_STRAT       VM_PSTRAT_BIGFIRST
                    104: #define VM_PHYSSEG_NOADD               /* can't add RAM after vm_mem_init */
                    105:
                    106: #define        VM_NFREELIST            2
                    107: #define        VM_FREELIST_DEFAULT     0
                    108: #define        VM_FREELIST_FIRST16     1
                    109:
                    110: #define __HAVE_VM_PAGE_MD
                    111: struct pv_entry;
                    112: struct vm_page_md {
                    113:        struct pv_entry *pv_list;
                    114: };
                    115:
                    116: #define VM_MDPAGE_INIT(pg) do {                \
                    117:        (pg)->mdpage.pv_list = NULL;    \
                    118: } while (0)
                    119:
                    120: #endif /* _VMPARAM_H_ */