usr/src/cmd/mdb/i86pc/modules/pcplusmp/pcplusmp.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  23  */
  24
  25 #include "intr_common.h"
  26 #include <sys/apic_timer.h>
  27
  28 /*
  29  * Globals
  30  */
  31 static struct av_head   avec_tbl[APIC_MAX_VECTOR+1];
  32 static apic_irq_t       *irq_tbl[APIC_MAX_VECTOR+1], airq;
  33 static char             level_tbl[APIC_MAX_VECTOR+1];
  34
  35 /*
  36  * Dump interrupt information for pcplusmp PSM.
  37  */
  38 /* ARGSUSED */
  39 int
  40 interrupt_dump_apic(uintptr_t addr, uint_t flags, int argc,
  41     const mdb_arg_t *argv)
  42 {
  43         int             i;
  44
  45         option_flags = 0;
  46         if (mdb_getopts(argc, argv,
  47             'd', MDB_OPT_SETBITS, INTR_DISPLAY_DRVR_INST, &option_flags,
  48             'i', MDB_OPT_SETBITS, INTR_DISPLAY_INTRSTAT, &option_flags,
  49             NULL) != argc)
  50                 return (DCMD_USAGE);
  51
  52         if (mdb_readvar(&irq_tbl, "apic_irq_table") == -1) {
  53                 mdb_warn("failed to read apic_irq_table");
  54                 return (DCMD_ERR);
  55         }
  56
  57         if (mdb_readvar(&level_tbl, "apic_level_intr") == -1) {
  58                 mdb_warn("failed to read apic_level_intr");
  59                 return (DCMD_ERR);
  60         }
  61
  62         if (mdb_readvar(&avec_tbl, "autovect") == -1) {
  63                 mdb_warn("failed to read autovect");
  64                 return (DCMD_ERR);
  65         }
  66
  67         /* Print the header first */
  68         if (option_flags & INTR_DISPLAY_INTRSTAT)
  69                 mdb_printf("%<u>CPU ");
  70         else
  71                 mdb_printf(
  72                     "%<u>IRQ  Vect IPL Bus    Trg Type   CPU Share APIC/INT# ");
  73         mdb_printf("%s %</u>\n", option_flags & INTR_DISPLAY_DRVR_INST ?
  74             "Driver Name(s)" : "ISR(s)");
  75
  76         /* Walk all the entries */
  77         for (i = 0; i < APIC_MAX_VECTOR + 1; i++) {
  78                 /* Read the entry */
  79                 if (mdb_vread(&airq, sizeof (apic_irq_t),
  80                     (uintptr_t)irq_tbl[i]) == -1)
  81                         continue;
  82
  83                 apic_interrupt_dump(&airq, &avec_tbl[i], i, NULL, level_tbl[i]);
  84         }
  85
  86         return (DCMD_OK);
  87 }
  88
  89
  90 /*
  91  * MDB module linkage information:
  92  *
  93  * We declare a list of structures describing our dcmds, and a function
  94  * named _mdb_init to return a pointer to our module information.
  95  */
  96 static const mdb_dcmd_t dcmds[] = {
  97         { "interrupts", "?[-di]", "print interrupts", interrupt_dump_apic,
  98             interrupt_help},
  99         { "softint", "?[-d]", "print soft interrupts", soft_interrupt_dump,
 100             soft_interrupt_help},
 101 #ifdef _KMDB
 102         { "apic", NULL, "print apic register contents", apic },
 103         { "ioapic", NULL, "print ioapic register contents", ioapic },
 104 #endif /* _KMDB */
 105         { NULL }
 106 };
 107
 108 static const mdb_modinfo_t modinfo = { MDB_API_VERSION, dcmds, NULL };
 109
 110 const mdb_modinfo_t *
 111 _mdb_init(void)
 112 {
 113         GElf_Sym        sym;
 114
 115         if (mdb_lookup_by_name("gld_intr", &sym) != -1)
 116                 if (GELF_ST_TYPE(sym.st_info) == STT_FUNC)
 117                         gld_intr_addr = (uintptr_t)sym.st_value;
 118
 119         return (&modinfo);
 120 }