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Annotation of 43BSDTahoe/sys/tahoe/cpu.h, revision 1.1.1.1

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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