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Annotation of 43BSDReno/sys/tahoe/cpu.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1986, 1988 The Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * This code is derived from software contributed to Berkeley by
        !             6:  * Computer Consoles Inc.
        !             7:  *
        !             8:  * Redistribution is only permitted until one year after the first shipment
        !             9:  * of 4.4BSD by the Regents.  Otherwise, redistribution and use in source and
        !            10:  * binary forms are permitted provided that: (1) source distributions retain
        !            11:  * this entire copyright notice and comment, and (2) distributions including
        !            12:  * binaries display the following acknowledgement:  This product includes
        !            13:  * software developed by the University of California, Berkeley and its
        !            14:  * contributors'' in the documentation or other materials provided with the
        !            15:  * distribution and in all advertising materials mentioning features or use
        !            16:  * of this software.  Neither the name of the University nor the names of
        !            17:  * its contributors may be used to endorse or promote products derived from
        !            18:  * this software without specific prior written permission.
        !            19:  * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
        !            20:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
        !            21:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            22:  *
        !            23:  *     @(#)cpu.h       7.3 (Berkeley) 6/28/90
        !            24:  */
        !            25: 
        !            26: /*
        !            27:  * Assorted definitions unique to TAHOE CPU support.
        !            28:  */
        !            29: 
        !            30: #define        uncache(v)      mtpr(PDCS, (caddr_t)(v))
        !            31: #define        movow(a,w)      _movow((u_short *)(a), (u_short)(w))
        !            32: #define        movob(a,b)      _movob((u_char *)(a), (u_char)(b))
        !            33: 
        !            34: #define        resettodr()     /* no todr to set */
        !            35: 
        !            36: #define        MAXCKEY 255             /* maximal allowed code key */
        !            37: #define        MAXDKEY 255             /* maximal allowed data key */
        !            38: #define        NCKEY   (MAXCKEY+1)     /* # code keys, including 0 (reserved) */
        !            39: #define        NDKEY   (MAXDKEY+1)     /* # data keys, including 0 (reserved) */
        !            40: 
        !            41: #ifndef LOCORE
        !            42: #ifdef KERNEL
        !            43: char   ckey_cache[NCKEY];      /* 1 =>'s key i may be in code cache */
        !            44: short  ckey_cnt[NCKEY];        /* code key reference count */
        !            45: char   dkey_cache[NDKEY];      /* 1 =>'s key i may be in data cache */
        !            46: short  dkey_cnt[NDKEY];        /* data key reference count */
        !            47: #endif
        !            48: 
        !            49: /*
        !            50:  * Statistics maintained for code and
        !            51:  * data cache key allocations algorithms.
        !            52:  */
        !            53: struct keystats {
        !            54:        long    ks_avail;       /* number of keys currently unallocated */
        !            55:        long    ks_dirty;       /* number of keys currently waiting for purge */
        !            56:        long    ks_allocs;      /* number of keys allocated */
        !            57:        long    ks_allocfree;   /* key allocated from free slot */
        !            58:        long    ks_norefs;      /* key marked in use, but refcnt 0 */
        !            59:        long    ks_taken;       /* key taken from single process */
        !            60:        long    ks_shared;      /* key taken from multiple processes */
        !            61:        long    ks_inval;       /* number of times keys exchanged */
        !            62: };
        !            63: #endif
        !            64: 
        !            65: long   *user_psl;              /* user mode psl for ast's */
        !            66: int    intenable;              /* interrupts enable startup flag */
        !            67: int    clk_enable;             /* clock enable startup flag */
        !            68: 
        !            69: /*
        !            70:  * Enable realtime clock.
        !            71:  */
        !            72: #define        enablertclock() (clk_enable = 1)

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