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 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #pragma ident "%Z%%M% %I% %E% SMI" 27 28 #include "intr_common.h" 29 30 static struct av_head avec_tbl[APIC_MAX_VECTOR+1]; 31 static uint16_t shared_tbl[MAX_ISA_IRQ + 1]; 32 33 static char * 34 interrupt_print_bus(uintptr_t dip_addr) 35 { 36 char bind_name[MAXPATHLEN + 1]; 37 struct dev_info dev_info; 38 39 if (mdb_vread(&dev_info, sizeof (dev_info), dip_addr) == -1) { 40 mdb_warn("failed to read child dip"); 41 return ("-"); 42 } 43 44 while (dev_info.devi_parent != 0) { 45 if (mdb_vread(&dev_info, sizeof (dev_info), 46 (uintptr_t)dev_info.devi_parent) == -1) 47 break; 48 49 (void) mdb_readstr(bind_name, sizeof (bind_name), 50 (uintptr_t)dev_info.devi_binding_name); 51 if (strcmp(bind_name, "isa") == 0) 52 return ("ISA"); 53 else if (strcmp(bind_name, "pci") == 0 || 54 strcmp(bind_name, "npe") == 0) 55 return ("PCI"); 56 } 57 return ("-"); 58 } 59 60 61 /* 62 * uppc_interrupt_dump: 63 * Dump uppc(7d) interrupt information. 64 */ 65 /* ARGSUSED */ 66 int 67 uppc_interrupt_dump(uintptr_t addr, uint_t flags, int argc, 68 const mdb_arg_t *argv) 69 { 70 int i, j; 71 boolean_t found = B_FALSE; 72 struct autovec avhp; 73 74 option_flags = 0; 75 if (mdb_getopts(argc, argv, 76 'd', MDB_OPT_SETBITS, INTR_DISPLAY_DRVR_INST, &option_flags, 77 'i', MDB_OPT_SETBITS, INTR_DISPLAY_INTRSTAT, &option_flags, 78 NULL) != argc) 79 return (DCMD_USAGE); 80 81 if (mdb_readvar(&avec_tbl, "autovect") == -1) { 82 mdb_warn("failed to read autovect"); 83 return (DCMD_ERR); 84 } 85 86 if (mdb_readvar(&shared_tbl, "uppc_irq_shared_table") == -1) { 87 mdb_warn("failed to read uppc_irq_shared_table"); 88 return (DCMD_ERR); 89 } 90 91 /* 92 * By default, on all x86 systems ::interrupts from uppc(7d) gets 93 * loaded first. For APIC systems the ::interrupts from pcplusmp(7d) 94 * ought to be executed. Confusion stems as both modules export the 95 * same dcmd. 96 */ 97 for (i = 0; i < MAX_ISA_IRQ + 1; i++) 98 if (shared_tbl[i]) { 99 found = B_TRUE; 100 break; 101 } 102 103 if (found == B_FALSE) { 104 if (mdb_lookup_by_obj("pcplusmp", "apic_irq_table", 105 NULL) == 0) { 106 return (mdb_call_dcmd("pcplusmp`interrupts", 107 addr, flags, argc, argv)); 108 } 109 } 110 111 /* Print the header first */ 112 if (option_flags & INTR_DISPLAY_INTRSTAT) 113 mdb_printf("%<u>CPU "); 114 else 115 mdb_printf("%<u>IRQ Vector IPL(lo/hi) Bus Share "); 116 mdb_printf("%s %</u>\n", option_flags & INTR_DISPLAY_DRVR_INST ? 117 "Driver Name(s)" : "ISR(s)"); 118 119 /* Walk all the entries */ 120 for (i = 0; i < MAX_ISA_IRQ + 1; i++) { 121 /* Read the entry, if invalid continue */ 122 if (mdb_vread(&avhp, sizeof (struct autovec), 123 (uintptr_t)avec_tbl[i].avh_link) == -1) 124 continue; 125 126 /* Print each interrupt entry */ 127 if (option_flags & INTR_DISPLAY_INTRSTAT) 128 mdb_printf("cpu0\t"); 129 else 130 mdb_printf("%-3d 0x%2x %4d/%-2d %-4s %-3d ", 131 i, i + PIC_VECTBASE, avec_tbl[i].avh_lo_pri, 132 avec_tbl[i].avh_hi_pri, avhp.av_dip ? 133 interrupt_print_bus((uintptr_t)avhp.av_dip) : " - ", 134 shared_tbl[i]); 135 136 if (shared_tbl[i]) 137 interrupt_print_isr((uintptr_t)avhp.av_vector, 138 (uintptr_t)avhp.av_intarg1, (uintptr_t)avhp.av_dip); 139 140 for (j = 1; j < shared_tbl[i]; j++) { 141 if (mdb_vread(&avhp, sizeof (struct autovec), 142 (uintptr_t)avhp.av_link) != -1) { 143 mdb_printf(", "); 144 interrupt_print_isr((uintptr_t)avhp.av_vector, 145 (uintptr_t)avhp.av_intarg1, 146 (uintptr_t)avhp.av_dip); 147 } else { 148 break; 149 } 150 } 151 mdb_printf("\n"); 152 } 153 154 return (DCMD_OK); 155 } 156 157 158 /* 159 * MDB module linkage information: 160 */ 161 static const mdb_dcmd_t dcmds[] = { 162 { "interrupts", "?[-di]", "print interrupts", uppc_interrupt_dump, 163 interrupt_help}, 164 { "softint", "?[-d]", "print soft interrupts", soft_interrupt_dump, 165 soft_interrupt_help}, 166 { NULL } 167 }; 168 169 static const mdb_modinfo_t modinfo = { MDB_API_VERSION, dcmds, NULL }; 170 171 const mdb_modinfo_t * 172 _mdb_init(void) 173 { 174 GElf_Sym sym; 175 176 if (mdb_lookup_by_name("gld_intr", &sym) != -1) 177 if (GELF_ST_TYPE(sym.st_info) == STT_FUNC) 178 gld_intr_addr = (uintptr_t)sym.st_value; 179 180 return (&modinfo); 181 } 182