projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| afd2b441 | 1 | /* |
| e55cb871 KB |
2 | * Copyright (c) 1986, 1988 The Regents of the University of California. |
| 3 | * All rights reserved. | |
| afd2b441 | 4 | * |
| e55cb871 KB |
5 | * This code is derived from software contributed to Berkeley by |
| 6 | * Computer Consoles Inc. | |
| 7 | * | |
| 6dc0e27a | 8 | * %sccs.include.redist.c% |
| e55cb871 | 9 | * |
| 6dc0e27a | 10 | * @(#)cpu.h 7.3 (Berkeley) %G% |
| afd2b441 MK |
11 | */ |
| 12 | ||
| 13 | /* | |
| 14 | * Assorted definitions unique to TAHOE CPU support. | |
| 15 | */ | |
| 16 | ||
| 17 | #define uncache(v) mtpr(PDCS, (caddr_t)(v)) | |
| 18 | #define movow(a,w) _movow((u_short *)(a), (u_short)(w)) | |
| 19 | #define movob(a,b) _movob((u_char *)(a), (u_char)(b)) | |
| 20 | ||
| 21 | #define resettodr() /* no todr to set */ | |
| 22 | ||
| 1366286d MK |
23 | #define MAXCKEY 255 /* maximal allowed code key */ |
| 24 | #define MAXDKEY 255 /* maximal allowed data key */ | |
| 25 | #define NCKEY (MAXCKEY+1) /* # code keys, including 0 (reserved) */ | |
| 26 | #define NDKEY (MAXDKEY+1) /* # data keys, including 0 (reserved) */ | |
| 27 | ||
| afd2b441 MK |
28 | #ifndef LOCORE |
| 29 | #ifdef KERNEL | |
| 30 | char ckey_cache[NCKEY]; /* 1 =>'s key i may be in code cache */ | |
| 31 | short ckey_cnt[NCKEY]; /* code key reference count */ | |
| 32 | char dkey_cache[NDKEY]; /* 1 =>'s key i may be in data cache */ | |
| 33 | short dkey_cnt[NDKEY]; /* data key reference count */ | |
| 34 | #endif | |
| 35 | ||
| 36 | /* | |
| 37 | * Statistics maintained for code and | |
| 38 | * data cache key allocations algorithms. | |
| 39 | */ | |
| 40 | struct keystats { | |
| 1366286d MK |
41 | long ks_avail; /* number of keys currently unallocated */ |
| 42 | long ks_dirty; /* number of keys currently waiting for purge */ | |
| afd2b441 | 43 | long ks_allocs; /* number of keys allocated */ |
| 1366286d | 44 | long ks_allocfree; /* key allocated from free slot */ |
| afd2b441 MK |
45 | long ks_norefs; /* key marked in use, but refcnt 0 */ |
| 46 | long ks_taken; /* key taken from single process */ | |
| 47 | long ks_shared; /* key taken from multiple processes */ | |
| 1366286d | 48 | long ks_inval; /* number of times keys exchanged */ |
| afd2b441 MK |
49 | }; |
| 50 | #endif | |
| 51 | ||
| 52 | long *user_psl; /* user mode psl for ast's */ | |
| 53 | int intenable; /* interrupts enable startup flag */ | |
| 54 | int clk_enable; /* clock enable startup flag */ | |
| 55 | ||
| 56 | /* | |
| 57 | * Enable realtime clock. | |
| 58 | */ | |
| 59 | #define enablertclock() (clk_enable = 1) |