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Annotation of sys/arch/sh/include/vmparam.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: vmparam.h,v 1.3 2007/05/20 20:16:08 miod Exp $        */
        !             2: /*     $NetBSD: vmparam.h,v 1.17 2006/03/04 01:55:03 uwe Exp $ */
        !             3:
        !             4: /*-
        !             5:  * Copyright (c) 2002 The NetBSD Foundation, Inc.
        !             6:  * All rights reserved.
        !             7:  *
        !             8:  * This code is derived from software contributed to The NetBSD Foundation
        !             9:  * by UCHIYAMA Yasushi.
        !            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. All advertising materials mentioning features or use of this software
        !            20:  *    must display the following acknowledgement:
        !            21:  *        This product includes software developed by the NetBSD
        !            22:  *        Foundation, Inc. and its contributors.
        !            23:  * 4. Neither the name of The NetBSD Foundation nor the names of its
        !            24:  *    contributors may be used to endorse or promote products derived
        !            25:  *    from this software without specific prior written permission.
        !            26:  *
        !            27:  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
        !            28:  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
        !            29:  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
        !            30:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
        !            31:  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
        !            32:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
        !            33:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
        !            34:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
        !            35:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
        !            36:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
        !            37:  * POSSIBILITY OF SUCH DAMAGE.
        !            38:  */
        !            39:
        !            40: #ifndef _SH_VMPARAM_H_
        !            41: #define        _SH_VMPARAM_H_
        !            42: #include <sys/queue.h>
        !            43:
        !            44: /* Virtual address map. */
        !            45: #define        VM_MIN_ADDRESS          ((vaddr_t)0)
        !            46: #define        VM_MAXUSER_ADDRESS      ((vaddr_t)0x7ffff000)
        !            47: #define        VM_MAX_ADDRESS          ((vaddr_t)0x7ffff000)
        !            48: #define        VM_MIN_KERNEL_ADDRESS   ((vaddr_t)0xc0000000)
        !            49: #define        VM_MAX_KERNEL_ADDRESS   ((vaddr_t)0xe0000000)
        !            50:
        !            51: /* top of stack */
        !            52: #define        USRSTACK                VM_MAXUSER_ADDRESS
        !            53:
        !            54: /* Virtual memory resoruce limit. */
        !            55: #define        MAXTSIZ                 (64 * 1024 * 1024)      /* max text size */
        !            56: #ifndef MAXDSIZ
        !            57: #define        MAXDSIZ                 (512 * 1024 * 1024)     /* max data size */
        !            58: #endif
        !            59: #ifndef        MAXSSIZ
        !            60: #define        MAXSSIZ                 (32 * 1024 * 1024)      /* max stack size */
        !            61: #endif
        !            62:
        !            63: /* initial data size limit */
        !            64: #ifndef DFLDSIZ
        !            65: #define        DFLDSIZ                 (128 * 1024 * 1024)
        !            66: #endif
        !            67: /* initial stack size limit */
        !            68: #ifndef        DFLSSIZ
        !            69: #define        DFLSSIZ                 (2 * 1024 * 1024)
        !            70: #endif
        !            71:
        !            72: #define        STACKGAP_RANDOM         (256 * 1024)
        !            73:
        !            74: /*
        !            75:  * Size of shared memory map
        !            76:  */
        !            77: #ifndef SHMMAXPGS
        !            78: #define        SHMMAXPGS               1024
        !            79: #endif
        !            80:
        !            81: /* Size of user raw I/O map */
        !            82: #ifndef USRIOSIZE
        !            83: #define        USRIOSIZE               (MAXBSIZE / PAGE_SIZE * 8)
        !            84: #endif
        !            85:
        !            86: #define        VM_PHYS_SIZE            (USRIOSIZE * PAGE_SIZE)
        !            87:
        !            88: /* pmap-specific data store in the vm_page structure. */
        !            89: #define        __HAVE_VM_PAGE_MD
        !            90: #define        PVH_REFERENCED          1
        !            91: #define        PVH_MODIFIED            2
        !            92:
        !            93: #ifndef _LOCORE
        !            94: struct pv_entry;
        !            95: struct vm_page_md {
        !            96:        SLIST_HEAD(, pv_entry) pvh_head;
        !            97:        int pvh_flags;
        !            98: };
        !            99:
        !           100: #define        VM_MDPAGE_INIT(pg)                                              \
        !           101: do {                                                                   \
        !           102:        struct vm_page_md *pvh = &(pg)->mdpage;                         \
        !           103:        SLIST_INIT(&pvh->pvh_head);                                     \
        !           104:        pvh->pvh_flags = 0;                                             \
        !           105: } while (/*CONSTCOND*/0)
        !           106: #endif /* _LOCORE */
        !           107: #endif /* !_SH_VMPARAM_H_ */