Return to machparam.h CVS log

Up to [CSRG BSD Unix] / 43BSDReno / sys / hp300

Annotation of 43BSDReno/sys/hp300/machparam.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1988 University of Utah.
        !             3:  * Copyright (c) 1982, 1986, 1990 The Regents of the University of California.
        !             4:  * All rights reserved.
        !             5:  *
        !             6:  * This code is derived from software contributed to Berkeley by
        !             7:  * the Systems Programming Group of the University of Utah Computer
        !             8:  * Science Department.
        !             9:  *
        !            10:  * Redistribution is only permitted until one year after the first shipment
        !            11:  * of 4.4BSD by the Regents.  Otherwise, redistribution and use in source and
        !            12:  * binary forms are permitted provided that: (1) source distributions retain
        !            13:  * this entire copyright notice and comment, and (2) distributions including
        !            14:  * binaries display the following acknowledgement:  This product includes
        !            15:  * software developed by the University of California, Berkeley and its
        !            16:  * contributors'' in the documentation or other materials provided with the
        !            17:  * distribution and in all advertising materials mentioning features or use
        !            18:  * of this software.  Neither the name of the University nor the names of
        !            19:  * its contributors may be used to endorse or promote products derived from
        !            20:  * this software without specific prior written permission.
        !            21:  * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
        !            22:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
        !            23:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            24:  *
        !            25:  * from: Utah $Hdr: machparam.h 1.11 89/08/14$
        !            26:  *
        !            27:  *     @(#)machparam.h 7.1 (Berkeley) 5/8/90
        !            28:  */
        !            29: 
        !            30: /*
        !            31:  * Machine dependent constants for HP9000 series 300.
        !            32:  */
        !            33: #define        MACHINE "hp300"
        !            34: 
        !            35: #ifndef BYTE_ORDER
        !            36: #include <machine/endian.h>
        !            37: #endif
        !            38: 
        !            39: #include <machine/machlimits.h>
        !            40: 
        !            41: #define        NBPG            4096            /* bytes/page */
        !            42: #define        PGOFSET         (NBPG-1)        /* byte offset into page */
        !            43: #define        PGSHIFT         12              /* LOG2(NBPG) */
        !            44: #define        NPTEPG          (NBPG/(sizeof (struct pte)))
        !            45: 
        !            46: #define NBSEG          (1024*NBPG)     /* bytes/segment */
        !            47: #define        SEGOFSET        (NBSEG-1)       /* byte offset into segment */
        !            48: #define        SEGSHIFT        22              /* LOG2(NBSEG) */
        !            49: 
        !            50: #define        KERNBASE        0x00000000      /* start of kernel virtual */
        !            51: #define        BTOPKERNBASE    ((u_long)KERNBASE >> PGSHIFT)
        !            52: 
        !            53: #define        DEV_BSIZE       512
        !            54: #define        DEV_BSHIFT      9               /* log2(DEV_BSIZE) */
        !            55: #define BLKDEV_IOSIZE  2048
        !            56: #define        MAXPHYS         (64 * 1024)     /* max raw I/O transfer size */
        !            57: 
        !            58: #define        CLSIZE          1
        !            59: #define        CLSIZELOG2      0
        !            60: 
        !            61: #define        SSIZE           1               /* initial stack size/NBPG */
        !            62: #define        SINCR           1               /* increment of stack/NBPG */
        !            63: 
        !            64: #define        UPAGES          3               /* pages of u-area */
        !            65: 
        !            66: /*
        !            67:  * Constants related to network buffer management.
        !            68:  * MCLBYTES must be no larger than CLBYTES (the software page size), and,
        !            69:  * on machines that exchange pages of input or output buffers with mbuf
        !            70:  * clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple
        !            71:  * of the hardware page size.
        !            72:  */
        !            73: #define        MSIZE           128             /* size of an mbuf */
        !            74: #define        MCLBYTES        1024
        !            75: #define        MCLSHIFT        10
        !            76: #define        MCLOFSET        (MCLBYTES - 1)
        !            77: #ifndef NMBCLUSTERS
        !            78: #ifdef GATEWAY
        !            79: #define        NMBCLUSTERS     512             /* map size, max cluster allocation */
        !            80: #else
        !            81: #define        NMBCLUSTERS     256             /* map size, max cluster allocation */
        !            82: #endif
        !            83: #endif
        !            84: 
        !            85: /*
        !            86:  * Size of kernel malloc arena in CLBYTES-sized logical pages
        !            87:  */ 
        !            88: #ifndef NKMEMCLUSTERS
        !            89: #define        NKMEMCLUSTERS   (512*1024/CLBYTES)
        !            90: #endif
        !            91: 
        !            92: /*
        !            93:  * Some macros for units conversion
        !            94:  */
        !            95: /* Core clicks (4096 bytes) to segments and vice versa */
        !            96: #define        ctos(x) (x)
        !            97: #define        stoc(x) (x)
        !            98: 
        !            99: /* Core clicks (4096 bytes) to disk blocks */
        !           100: #define        ctod(x) ((x)<<(PGSHIFT-DEV_BSHIFT))
        !           101: #define        dtoc(x) ((x)>>(PGSHIFT-DEV_BSHIFT))
        !           102: #define        dtob(x) ((x)<<DEV_BSHIFT)
        !           103: 
        !           104: /* clicks to bytes */
        !           105: #define        ctob(x) ((x)<<PGSHIFT)
        !           106: 
        !           107: /* bytes to clicks */
        !           108: #define        btoc(x) (((unsigned)(x)+(NBPG-1))>>PGSHIFT)
        !           109: 
        !           110: #define        btodb(bytes)                    /* calculates (bytes / DEV_BSIZE) */ \
        !           111:        ((unsigned)(bytes) >> DEV_BSHIFT)
        !           112: #define        dbtob(db)                       /* calculates (db * DEV_BSIZE) */ \
        !           113:        ((unsigned)(db) << DEV_BSHIFT)
        !           114: 
        !           115: /*
        !           116:  * Map a ``block device block'' to a file system block.
        !           117:  * This should be device dependent, and will be if we
        !           118:  * add an entry to cdevsw/bdevsw for that purpose.
        !           119:  * For now though just use DEV_BSIZE.
        !           120:  */
        !           121: #define        bdbtofsb(bn)    ((bn) / (BLKDEV_IOSIZE/DEV_BSIZE))
        !           122: 
        !           123: /*
        !           124:  * Macros to decode processor status word.
        !           125:  */
        !           126: #define        USERMODE(ps)    (((ps) & PSL_S) == 0)
        !           127: #define        BASEPRI(ps)     (((ps) & PSL_IPL7) == 0)
        !           128: 
        !           129: #ifdef KERNEL
        !           130: #ifndef LOCORE
        !           131: int    cpuspeed;
        !           132: #define        DELAY(n)        { register int N = cpuspeed * (n); while (--N > 0); }
        !           133: #endif
        !           134: 
        !           135: #else KERNEL
        !           136: #define        DELAY(n)        { register int N = (n); while (--N > 0); }
        !           137: #endif KERNEL
        !           138: 
        !           139: #ifdef HPUXCOMPAT
        !           140: /*
        !           141:  * Constants/macros for HPUX multiple mapping of user address space.
        !           142:  * Pages in the first 256Mb are mapped in at every 256Mb segment.
        !           143:  */
        !           144: #define HPMMMASK       0xF0000000
        !           145: #define ISHPMMADDR(v)  \
        !           146:     ((u.u_pcb.pcb_flags&PCB_HPUXMMAP) && ((unsigned)(v)&HPMMMASK) != HPMMMASK)
        !           147: #define HPMMBASEADDR(v)        ((unsigned)(v) & ~HPMMMASK)
        !           148: #endif

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.