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Annotation of sys/arch/hppa64/include/param.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: param.h,v 1.9 2007/05/28 21:02:49 thib Exp $  */
        !             2:
        !             3: /*
        !             4:  * Copyright (c) 1988-1994, The University of Utah and
        !             5:  * the Computer Systems Laboratory at the University of Utah (CSL).
        !             6:  * All rights reserved.
        !             7:  *
        !             8:  * Permission to use, copy, modify and distribute this software is hereby
        !             9:  * granted provided that (1) source code retains these copyright, permission,
        !            10:  * and disclaimer notices, and (2) redistributions including binaries
        !            11:  * reproduce the notices in supporting documentation, and (3) all advertising
        !            12:  * materials mentioning features or use of this software display the following
        !            13:  * acknowledgement: ``This product includes software developed by the
        !            14:  * Computer Systems Laboratory at the University of Utah.''
        !            15:  *
        !            16:  * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
        !            17:  * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
        !            18:  * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
        !            19:  *
        !            20:  * CSL requests users of this software to return to csl-dist@cs.utah.edu any
        !            21:  * improvements that they make and grant CSL redistribution rights.
        !            22:  *
        !            23:  *     Utah $Hdr: param.h 1.18 94/12/16$
        !            24:  */
        !            25:
        !            26: #include <machine/cpu.h>
        !            27:
        !            28: /*
        !            29:  * Machine dependent constants for PA-RISC.
        !            30:  */
        !            31:
        !            32: #define        _MACHINE        hppa64
        !            33: #define        MACHINE         "hppa64"
        !            34: #define        _MACHINE_ARCH   hppa64
        !            35: #define        MACHINE_ARCH    "hppa64"
        !            36: #define        MID_MACHINE     MID_HPPA20
        !            37:
        !            38: /*
        !            39:  * Round p (pointer or byte index) up to a correctly-aligned value for all
        !            40:  * data types (int, long, ...).   The result is u_int and must be cast to
        !            41:  * any desired pointer type.
        !            42:  */
        !            43: #define        ALIGNBYTES      7
        !            44: #define        ALIGN(p)        (((u_long)(p) + ALIGNBYTES) &~ ALIGNBYTES)
        !            45: #define        ALIGNED_POINTER(p,t) ((((u_long)(p)) & (sizeof(t) - 1)) == 0)
        !            46:
        !            47: #define        PAGE_SIZE       4096
        !            48: #define        PAGE_MASK       (PAGE_SIZE-1)
        !            49: #define        PAGE_SHIFT      12
        !            50:
        !            51: #define        NBPG            4096            /* bytes/page */
        !            52: #define        PGOFSET         (NBPG-1)        /* byte offset into page */
        !            53: #define        PGSHIFT         12              /* LOG2(NBPG) */
        !            54:
        !            55: #define        KERNBASE        0x00000000      /* start of kernel virtual */
        !            56:
        !            57: #define        DEV_BSHIFT      9               /* log2(DEV_BSIZE) */
        !            58: #define        DEV_BSIZE       (1 << DEV_BSHIFT)
        !            59: #define BLKDEV_IOSIZE  2048
        !            60: #define        MAXPHYS         (64 * 1024)     /* max raw I/O transfer size */
        !            61:
        !            62: #define        MACHINE_STACK_GROWS_UP  1       /* stack grows to higher addresses */
        !            63:
        !            64: #define        USPACE          (4 * NBPG)      /* pages for user struct and kstack */
        !            65: #define        USPACE_ALIGN    (0)             /* u-area alignment 0-none */
        !            66:
        !            67: #ifndef        MSGBUFSIZE
        !            68: #define        MSGBUFSIZE      2*NBPG          /* default message buffer size */
        !            69: #endif
        !            70:
        !            71: /*
        !            72:  * Constants related to network buffer management.
        !            73:  */
        !            74: #define        NMBCLUSTERS     4096            /* map size, max cluster allocation */
        !            75:
        !            76: /*
        !            77:  * Minimum and maximum sizes of the kernel malloc arena in PAGE_SIZE-sized
        !            78:  * logical pages.
        !            79:  */
        !            80: #define        NKMEMPAGES_MIN_DEFAULT  ((8 * 1024 * 1024) >> PAGE_SHIFT)
        !            81: #define        NKMEMPAGES_MAX_DEFAULT  ((128 * 1024 * 1024) >> PAGE_SHIFT)
        !            82:
        !            83: /* pages ("clicks") (4096 bytes) to disk blocks */
        !            84: #define        ctod(x)         ((x) << (PAGE_SHIFT - DEV_BSHIFT))
        !            85: #define        dtoc(x)         ((x) >> (PAGE_SHIFT - DEV_BSHIFT))
        !            86:
        !            87: /* pages to bytes */
        !            88: #define        ctob(x)         ((x) << PAGE_SHIFT)
        !            89: #define        btoc(x)         (((x) + PAGE_MASK) >> PAGE_SHIFT)
        !            90:
        !            91: #define        btodb(x)        ((x) >> DEV_BSHIFT)
        !            92: #define        dbtob(x)        ((x) << DEV_BSHIFT)
        !            93:
        !            94: #ifndef _LOCORE
        !            95: #define        CONADDR conaddr
        !            96: #define        CONUNIT conunit
        !            97: #define        COM_FREQ        7372800
        !            98: extern hppa_hpa_t conaddr;
        !            99: extern int conunit;
        !           100: #endif
        !           101:
        !           102: #define        __SWAP_BROKEN