madt.c revision 84447
1/*- 2 * Copyright (c) 2001 Doug Rabson 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: head/sys/ia64/acpica/madt.c 84447 2001-10-04 08:45:19Z dfr $ 27 */ 28 29#include "acpi.h" 30 31#pragma pack(1) 32 33#define APIC_INTERRUPT_SOURCE_OVERRIDE 2 34#define APIC_NMI 3 35#define APIC_LOCAL_APIC_NMI 4 36#define APIC_LOCAL_APIC_OVERRIDE 5 37#define APIC_IO_SAPIC 6 38#define APIC_LOCAL_SAPIC 7 39#define APIC_PLATFORM_INTERRUPT 8 40 41 42typedef struct /* Interrupt Source Override */ 43{ 44 APIC_HEADER header; 45 UINT8 Bus; 46 UINT8 Source; 47 UINT32 GlobalSystemInterrupt; 48 UINT16 Flags; 49} INTERRUPT_SOURCE_OVERRIDE; 50 51typedef struct /* IO SAPIC */ 52{ 53 APIC_HEADER header; 54 UINT8 IoSapicId; /* I/O SAPIC ID */ 55 UINT8 Reserved; /* reserved - must be zero */ 56 UINT32 Vector; /* interrupt vector index where INTI 57 * lines start */ 58 UINT64 IoSapicAddress; /* SAPIC's physical address */ 59 60} IO_SAPIC; 61 62 63typedef struct /* LOCAL SAPIC */ 64{ 65 APIC_HEADER header; 66 UINT16 ProcessorId; /* ACPI processor id */ 67 UINT16 ProcessorEnabled: 1; /* Processor is usable if set */ 68 UINT16 Reserved1 : 15; 69 UINT8 LocalSapicId; /* processor's local SAPIC id */ 70 UINT8 LocalSapicEid; /* processor's local SAPIC eid */ 71 72} LOCAL_SAPIC; 73 74 75typedef struct /* PLATFORM INTERRUPT SOURCE */ 76{ 77 APIC_HEADER header; 78 UINT16 Polarity : 2; /* Polarity of input signal */ 79 UINT16 TriggerMode: 2; /* Trigger mode of input signal */ 80 UINT16 Reserved1 : 12; 81 UINT8 InterruptType; /* 1-PMI, 2-INIT, 3-Error */ 82 UINT8 ProcessorId; /* Processor ID of destination */ 83 UINT8 ProcessorEid; /* Processor EID of destination */ 84 UINT8 IoSapicVector; /* Value for redirection table */ 85 UINT32 GlobalSystemInterrupt; /* Global System Interrupt */ 86 UINT32 Reserved2; 87 88} PLATFORM_INTERRUPT_SOURCE; 89 90 91#pragma pack() 92 93 94static void 95parse_interrupt_override(INTERRUPT_SOURCE_OVERRIDE *override) 96{ 97 printf("\t\tBus=%d, Source=%d, Irq=0x%x\n", 98 override->Bus, 99 override->Source, 100 override->GlobalSystemInterrupt); 101} 102 103static void 104parse_io_sapic(IO_SAPIC *sapic) 105{ 106 printf("\t\tId=0x%x, Vector=0x%x, Address=0x%lx\n", 107 sapic->IoSapicId, 108 sapic->Vector, 109 sapic->IoSapicAddress); 110} 111 112static void 113parse_local_sapic(LOCAL_SAPIC *sapic) 114{ 115 printf("\t\tProcessorId=0x%x, Id=0x%x, Eid=0x%x\n", 116 sapic->ProcessorId, 117 sapic->LocalSapicId, 118 sapic->LocalSapicEid); 119} 120 121static void 122parse_platform_interrupt(PLATFORM_INTERRUPT_SOURCE *source) 123{ 124 printf("\t\tPolarity=%d, TriggerMode=%d, Id=0x%x, " 125 "Eid=0x%x, Vector=0x%x, Irq=%d\n", 126 source->Polarity, 127 source->TriggerMode, 128 source->ProcessorId, 129 source->ProcessorEid, 130 source->IoSapicVector, 131 source->GlobalSystemInterrupt); 132} 133 134static void 135parse_madt(APIC_TABLE *madt) 136{ 137 char *p, *end; 138 139 /* 140 * MADT header is followed by a number of variable length 141 * structures. 142 */ 143 end = (char *) madt + madt->header.Length; 144 for (p = (char *) (madt + 1); p < end; ) { 145 APIC_HEADER *head = (APIC_HEADER *) p; 146 147 printf("\t"); 148 switch (head->Type) { 149 case APIC_PROC: 150 if (bootverbose) 151 printf("Processor APIC entry\n"); 152 break; 153 154 case APIC_IO: 155 if (bootverbose) 156 printf("I/O APIC entry\n"); 157 break; 158 159 case APIC_INTERRUPT_SOURCE_OVERRIDE: 160 if (bootverbose) 161 printf("Interrupt source override entry\n"); 162 parse_interrupt_override 163 ((INTERRUPT_SOURCE_OVERRIDE *) head); 164 break; 165 166 case APIC_NMI: 167 if (bootverbose) 168 printf("NMI entry\n"); 169 break; 170 171 case APIC_LOCAL_APIC_NMI: 172 if (bootverbose) 173 printf("Local APIC NMI entry\n"); 174 break; 175 176 case APIC_LOCAL_APIC_OVERRIDE: 177 if (bootverbose) 178 printf("Local APIC override entry\n"); 179 break; 180 181 case APIC_IO_SAPIC: 182 if (bootverbose) 183 printf("I/O SAPIC entry\n"); 184 parse_io_sapic((IO_SAPIC *) head); 185 break; 186 187 case APIC_LOCAL_SAPIC: 188 if (bootverbose) 189 printf("Local SAPIC entry\n"); 190 parse_local_sapic((LOCAL_SAPIC *) head); 191 break; 192 193 case APIC_PLATFORM_INTERRUPT: 194 if (bootverbose) 195 printf("Platform interrupt entry\n"); 196 parse_platform_interrupt 197 ((PLATFORM_INTERRUPT_SOURCE *) head); 198 break; 199 200 default: 201 if (bootverbose) 202 printf("Unknown type %d entry\n", head->Type); 203 break; 204 } 205 206 p = p + head->Length; 207 } 208} 209 210void 211ia64_parse_xsdt(XSDT_DESCRIPTOR *xsdt) 212{ 213 int i, count; 214 ACPI_TABLE_HEADER *table; 215 216 /* 217 * First find the MADT. 218 */ 219 count = (UINT64 *) ((char *) xsdt + xsdt->Header.Length) 220 - &xsdt->TableOffsetEntry[0]; 221 for (i = 0; i < count; i++) { 222 table = (ACPI_TABLE_HEADER *) 223 IA64_PHYS_TO_RR7(xsdt->TableOffsetEntry[i]); 224 if (bootverbose) 225 printf("Table '%c%c%c%c' at %p\n", 226 table->Signature[0], 227 table->Signature[1], 228 table->Signature[2], 229 table->Signature[3], 230 table); 231 if (!strncmp(table->Signature, APIC_SIG, 4)) { 232 parse_madt((APIC_TABLE *) table); 233 } 234 } 235} 236