projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| a196a004 | 1 | /* |
| 35962040 KB |
2 | * Copyright (c) 1988 Regents of the University of California. |
| 3 | * All rights reserved. | |
| 4 | * | |
| 5 | * This code is derived from software contributed to Berkeley by | |
| 6 | * Chris Torek. | |
| 7 | * | |
| af359dea C |
8 | * Redistribution and use in source and binary forms, with or without |
| 9 | * modification, are permitted provided that the following conditions | |
| 10 | * are met: | |
| 11 | * 1. Redistributions of source code must retain the above copyright | |
| 12 | * notice, this list of conditions and the following disclaimer. | |
| 13 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 14 | * notice, this list of conditions and the following disclaimer in the | |
| 15 | * documentation and/or other materials provided with the distribution. | |
| 16 | * 3. All advertising materials mentioning features or use of this software | |
| 17 | * must display the following acknowledgement: | |
| 18 | * This product includes software developed by the University of | |
| 19 | * California, Berkeley and its contributors. | |
| 20 | * 4. Neither the name of the University nor the names of its contributors | |
| 21 | * may be used to endorse or promote products derived from this software | |
| 22 | * without specific prior written permission. | |
| 35962040 | 23 | * |
| af359dea C |
24 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 25 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 27 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
| 28 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 29 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 30 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 31 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 32 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 33 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 34 | * SUCH DAMAGE. | |
| 35962040 | 35 | * |
| 1c15e888 | 36 | * @(#)kdbreg.h 7.3 (Berkeley) 6/28/90 |
| a196a004 | 37 | */ |
| 35962040 | 38 | |
| a196a004 MK |
39 | /* |
| 40 | * The KDB50 registers are embedded inside the bi interface | |
| 41 | * general-purpose registers. | |
| 42 | */ | |
| 43 | struct kdb_regs { | |
| 44 | struct biiregs kdb_bi; | |
| 45 | short kdb_xxx; /* first half of GPR 0 unused */ | |
| 46 | short kdb_ip; /* initialisation and polling */ | |
| 47 | short kdb_sa; /* status & address (r/o half) */ | |
| 48 | short kdb_sw; /* status & address (w/o half) */ | |
| 49 | }; | |
| 50 | ||
| 51 | /* | |
| 52 | * Bits in KDB status register during initialisation | |
| 53 | */ | |
| 54 | #define KDB_ERR 0x8000 /* error */ | |
| 55 | #define KDB_STEP4 0x4000 /* step 4 has started */ | |
| 56 | #define KDB_STEP3 0x2000 /* step 3 has started */ | |
| 57 | #define KDB_STEP2 0x1000 /* step 2 has started */ | |
| 58 | #define KDB_STEP1 0x0800 /* step 1 has started */ | |
| 59 | #define KDB_DI 0x0100 /* controller implements diagnostics */ | |
| 60 | #define KDB_IE 0x0080 /* interrupt enable */ | |
| 61 | #define KDB_NCNRMASK 0x003f /* in STEP1, bits 0-2=NCMDL2, 3-5=NRSPL2 */ | |
| 62 | #define KDB_IVECMASK 0x007f /* in STEP2, bits 0-6 are interruptvec / 4 */ | |
| 63 | ||
| 64 | /* after initialisation: */ | |
| 65 | #define KDB_GO 0x0001 /* run */ | |
| 66 | ||
| 67 | #define KDBSR_BITS \ | |
| 68 | "\20\20ERR\17STEP4\16STEP3\15STEP2\14STEP1\13oldNV\12oldQB\11DI\10IE\1GO" | |
| 69 | ||
| 70 | /* | |
| 71 | * KDB Communications Area. Note that this structure definition | |
| 72 | * requires NRSP and NCMD to be defined already. | |
| 73 | */ | |
| 74 | struct kdbca { | |
| 75 | short ca_xxx1; /* unused */ | |
| 76 | char ca_xxx2; /* unused */ | |
| 77 | char ca_bdp; /* BDP to purge XXX */ | |
| 78 | short ca_cmdint; /* command ring transition flag */ | |
| 79 | short ca_rspint; /* response ring transition flag */ | |
| 80 | long ca_rspdsc[NRSP];/* response descriptors */ | |
| 81 | long ca_cmddsc[NCMD];/* command descriptors */ | |
| 82 | }; | |
| 83 | ||
| 84 | /* | |
| 85 | * Simplified routines (crash dump) use one command and one response. | |
| 86 | */ | |
| 87 | struct kdb1ca { | |
| 88 | long ca_xxx; | |
| 89 | short ca_cmdint; | |
| 90 | short ca_rspint; | |
| 91 | long ca_rspdsc; | |
| 92 | long ca_cmddsc; | |
| 93 | }; | |
| 94 | ||
| 95 | /* | |
| 96 | * Asserting KDB_MAP in values placed in mscp_seq.seq_buffer tells | |
| 97 | * the KDB to use mscp_seq.seq_mapbase as a set of PTEs and seq_buffer | |
| 98 | * as an offset value. Hence we need no mappings; the KDB50 reads | |
| 99 | * the hardware page tables directly. (Without KDB_MAP, seq_bufer | |
| 100 | * represents the physical memory address instead, and seq_mapbase is | |
| 101 | * unused.) | |
| 102 | */ | |
| 103 | #define KDB_MAP 0x80000000 | |
| 104 | #define KDB_PHYS 0 /* pseudo flag */ | |
| 105 | ||
| 106 | /* | |
| 107 | * KDB statistics. | |
| 108 | */ | |
| 109 | #define KS_MAXC 32 | |
| 110 | ||
| 111 | struct kdbstats { | |
| 112 | int ks_sys; /* transfers done from Sysmap */ | |
| 113 | int ks_paget; /* transfers done from Usrptmap */ | |
| 114 | int ks_contig; /* transfers done from contiguous user map */ | |
| 115 | int ks_copies; /* transfers done from pte copies */ | |
| 116 | int ks_mapwait; /* number of out-of-map waits */ | |
| 117 | int ks_cmd[KS_MAXC];/* commands started at once */ | |
| 118 | int ks_inval; /* copies due to !PG_V */ | |
| 119 | }; |