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

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1986, 1988 Regents of the University of California.
        !             3:  * All rights reserved.  The Berkeley software License Agreement
        !             4:  * specifies the terms and conditions for redistribution.
        !             5:  *
        !             6:  *     @(#)cpu.h       7.1 (Berkeley) 5/21/88
        !             7:  */
        !             8: 
        !             9: /*
        !            10:  * Assorted definitions unique to TAHOE CPU support.
        !            11:  */
        !            12: 
        !            13: #define        uncache(v)      mtpr(PDCS, (caddr_t)(v))
        !            14: #define        movow(a,w)      _movow((u_short *)(a), (u_short)(w))
        !            15: #define        movob(a,b)      _movob((u_char *)(a), (u_char)(b))
        !            16: 
        !            17: #define        resettodr()     /* no todr to set */
        !            18: 
        !            19: #define        MAXCKEY 255             /* maximal allowed code key */
        !            20: #define        MAXDKEY 255             /* maximal allowed data key */
        !            21: #define        NCKEY   (MAXCKEY+1)     /* # code keys, including 0 (reserved) */
        !            22: #define        NDKEY   (MAXDKEY+1)     /* # data keys, including 0 (reserved) */
        !            23: 
        !            24: #ifndef LOCORE
        !            25: #ifdef KERNEL
        !            26: char   ckey_cache[NCKEY];      /* 1 =>'s key i may be in code cache */
        !            27: short  ckey_cnt[NCKEY];        /* code key reference count */
        !            28: char   dkey_cache[NDKEY];      /* 1 =>'s key i may be in data cache */
        !            29: short  dkey_cnt[NDKEY];        /* data key reference count */
        !            30: #endif
        !            31: 
        !            32: /*
        !            33:  * Statistics maintained for code and
        !            34:  * data cache key allocations algorithms.
        !            35:  */
        !            36: struct keystats {
        !            37:        long    ks_avail;       /* number of keys currently unallocated */
        !            38:        long    ks_dirty;       /* number of keys currently waiting for purge */
        !            39:        long    ks_allocs;      /* number of keys allocated */
        !            40:        long    ks_allocfree;   /* key allocated from free slot */
        !            41:        long    ks_norefs;      /* key marked in use, but refcnt 0 */
        !            42:        long    ks_taken;       /* key taken from single process */
        !            43:        long    ks_shared;      /* key taken from multiple processes */
        !            44:        long    ks_inval;       /* number of times keys exchanged */
        !            45: };
        !            46: #endif
        !            47: 
        !            48: long   *user_psl;              /* user mode psl for ast's */
        !            49: int    intenable;              /* interrupts enable startup flag */
        !            50: int    clk_enable;             /* clock enable startup flag */
        !            51: 
        !            52: /*
        !            53:  * Enable realtime clock.
        !            54:  */
        !            55: #define        enablertclock() (clk_enable = 1)

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