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

1.1       nbrk        1: /*     $OpenBSD: vmparam.h,v 1.19 2007/06/14 14:27:46 drahn Exp $      */
                      2: /*     $NetBSD: vmparam.h,v 1.1 1996/09/30 16:34:38 ws Exp $   */
                      3:
                      4: /*-
                      5:  * Copyright (C) 1995, 1996 Wolfgang Solfrank.
                      6:  * Copyright (C) 1995, 1996 TooLs GmbH.
                      7:  * All rights reserved.
                      8:  *
                      9:  * Redistribution and use in source and binary forms, with or without
                     10:  * modification, are permitted provided that the following conditions
                     11:  * are met:
                     12:  * 1. Redistributions of source code must retain the above copyright
                     13:  *    notice, this list of conditions and the following disclaimer.
                     14:  * 2. Redistributions in binary form must reproduce the above copyright
                     15:  *    notice, this list of conditions and the following disclaimer in the
                     16:  *    documentation and/or other materials provided with the distribution.
                     17:  * 3. All advertising materials mentioning features or use of this software
                     18:  *    must display the following acknowledgement:
                     19:  *     This product includes software developed by TooLs GmbH.
                     20:  * 4. The name of TooLs GmbH may not be used to endorse or promote products
                     21:  *    derived from this software without specific prior written permission.
                     22:  *
                     23:  * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
                     24:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
                     25:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
                     26:  * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
                     27:  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
                     28:  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
                     29:  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
                     30:  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
                     31:  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
                     32:  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
                     33:  */
                     34:
                     35: #ifndef MACHINE_VMPARAM_H
                     36: #define MACHINE_VMPARAM_H
                     37:
                     38: #define        USRTEXT         PAGE_SIZE
                     39: #define        USRSTACK        VM_MAXUSER_ADDRESS
                     40:
                     41: #ifndef        MAXTSIZ
                     42: #define        MAXTSIZ         (64*1024*1024)          /* max text size */
                     43: #endif
                     44:
                     45: #ifndef        DFLDSIZ
                     46: #define        DFLDSIZ         (64*1024*1024)          /* default data size */
                     47: #endif
                     48:
                     49: #ifndef        MAXDSIZ
                     50: #define        MAXDSIZ         (512*1024*1024)         /* max data size */
                     51: #endif
                     52:
                     53: #ifndef        DFLSSIZ
                     54: #define        DFLSSIZ         (1*1024*1024)           /* default stack size */
                     55: #endif
                     56:
                     57: #ifndef        MAXSSIZ
                     58: #define        MAXSSIZ         (32*1024*1024)          /* max stack size */
                     59: #endif
                     60:
                     61: #define STACKGAP_RANDOM        256*1024
                     62:
                     63: /*
                     64:  * Size of shared memory map
                     65:  */
                     66: #ifndef        SHMMAXPGS
                     67: #define        SHMMAXPGS       8192                    /* 32mb */
                     68: #endif
                     69:
                     70: /*
                     71:  * Size of User Raw I/O map
                     72:  */
                     73: #define        USRIOSIZE       1024
                     74:
                     75: /*
                     76:  * Would like to have MAX addresses = 0, but this doesn't (currently) work
                     77:  */
                     78: #define        VM_MIN_ADDRESS          ((vaddr_t)0)
                     79: #define        VM_MAXUSER_ADDRESS      ((vaddr_t)0xfffff000)
                     80: #define        VM_MAX_ADDRESS          VM_MAXUSER_ADDRESS
                     81: #define        VM_MIN_KERNEL_ADDRESS   ((vaddr_t)(PPC_KERNEL_SR << ADDR_SR_SHIFT))
                     82:
                     83: /* ppc_kvm_stolen is so that vm space can be stolen before vm is fully
                     84:  * initialized.
                     85:  */
                     86: extern vaddr_t ppc_kvm_stolen;
                     87: #define VM_KERN_ADDRESS_SIZE  (PPC_SEGMENT_LENGTH - (32 * 1024 * 1024))
                     88: #define        VM_MAX_KERNEL_ADDRESS   (VM_MIN_KERNEL_ADDRESS + VM_KERN_ADDRESS_SIZE)
                     89:
                     90: #define        VM_PHYS_SIZE            (USRIOSIZE * PAGE_SIZE)
                     91:
                     92: #define        VM_PHYSSEG_MAX  32      /* actually we could have this many segments */
                     93: #define        VM_PHYSSEG_STRAT        VM_PSTRAT_BSEARCH
                     94: #define        VM_PHYSSEG_NOADD        /* can't add RAM after vm_mem_init */
                     95:
                     96: #define VM_NFREELIST           1
                     97: #define VM_FREELIST_DEFAULT    0
                     98:
                     99: #ifdef _KERNEL
                    100:
                    101: #define __HAVE_VM_PAGE_MD
                    102: struct pv_entry;
                    103: struct vm_page_md {
                    104:        LIST_HEAD(,pte_desc) pv_list;
                    105: };
                    106:
                    107: #define VM_MDPAGE_INIT(pg) do {                 \
                    108:        LIST_INIT(&((pg)->mdpage.pv_list));     \
                    109: } while (0)
                    110:
                    111: #endif
                    112:
                    113:
                    114: #endif