madt.c revision 263859
1121992Sjhb/*- 2121992Sjhb * Copyright (c) 2003 John Baldwin <jhb@FreeBSD.org> 3121992Sjhb * All rights reserved. 4121992Sjhb * 5121992Sjhb * Redistribution and use in source and binary forms, with or without 6121992Sjhb * modification, are permitted provided that the following conditions 7121992Sjhb * are met: 8121992Sjhb * 1. Redistributions of source code must retain the above copyright 9121992Sjhb * notice, this list of conditions and the following disclaimer. 10121992Sjhb * 2. Redistributions in binary form must reproduce the above copyright 11121992Sjhb * notice, this list of conditions and the following disclaimer in the 12121992Sjhb * documentation and/or other materials provided with the distribution. 13121992Sjhb * 14121992Sjhb * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15121992Sjhb * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16121992Sjhb * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17121992Sjhb * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18121992Sjhb * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19121992Sjhb * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20121992Sjhb * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21121992Sjhb * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22121992Sjhb * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23121992Sjhb * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24121992Sjhb * SUCH DAMAGE. 25121992Sjhb */ 26121992Sjhb 27121992Sjhb#include <sys/cdefs.h> 28121992Sjhb__FBSDID("$FreeBSD: head/sys/x86/acpica/madt.c 263859 2014-03-28 02:38:14Z takawata $"); 29121992Sjhb 30121992Sjhb#include <sys/param.h> 31121992Sjhb#include <sys/systm.h> 32121992Sjhb#include <sys/bus.h> 33121992Sjhb#include <sys/kernel.h> 34121992Sjhb#include <sys/malloc.h> 35121992Sjhb#include <sys/smp.h> 36121992Sjhb#include <vm/vm.h> 37121992Sjhb#include <vm/pmap.h> 38121992Sjhb 39214631Sjhb#include <x86/apicreg.h> 40121992Sjhb#include <machine/intr_machdep.h> 41261087Sjhb#include <x86/apicvar.h> 42121992Sjhb 43193530Sjkim#include <contrib/dev/acpica/include/acpi.h> 44193530Sjkim#include <contrib/dev/acpica/include/actables.h> 45193530Sjkim 46121992Sjhb#include <dev/acpica/acpivar.h> 47121992Sjhb#include <dev/pci/pcivar.h> 48121992Sjhb 49121992Sjhb/* These two arrays are indexed by APIC IDs. */ 50233623Sjhbstatic struct { 51121992Sjhb void *io_apic; 52121992Sjhb UINT32 io_vector; 53233623Sjhb} *ioapics; 54121992Sjhb 55233623Sjhbstatic struct lapic_info { 56121992Sjhb u_int la_enabled:1; 57129960Sjhb u_int la_acpi_id:8; 58233623Sjhb} lapics[MAX_APIC_ID + 1]; 59121992Sjhb 60128930Sjhbstatic int madt_found_sci_override; 61167814Sjkimstatic ACPI_TABLE_MADT *madt; 62121992Sjhbstatic vm_paddr_t madt_physaddr; 63121992Sjhbstatic vm_offset_t madt_length; 64121992Sjhb 65227293Sedstatic MALLOC_DEFINE(M_MADT, "madt_table", "ACPI MADT Table Items"); 66121992Sjhb 67167814Sjkimstatic enum intr_polarity interrupt_polarity(UINT16 IntiFlags, UINT8 Source); 68167814Sjkimstatic enum intr_trigger interrupt_trigger(UINT16 IntiFlags, UINT8 Source); 69121992Sjhbstatic int madt_find_cpu(u_int acpi_id, u_int *apic_id); 70121992Sjhbstatic int madt_find_interrupt(int intr, void **apic, u_int *pin); 71167814Sjkimstatic void madt_parse_apics(ACPI_SUBTABLE_HEADER *entry, void *arg); 72167814Sjkimstatic void madt_parse_interrupt_override( 73167814Sjkim ACPI_MADT_INTERRUPT_OVERRIDE *intr); 74167814Sjkimstatic void madt_parse_ints(ACPI_SUBTABLE_HEADER *entry, 75167814Sjkim void *arg __unused); 76167814Sjkimstatic void madt_parse_local_nmi(ACPI_MADT_LOCAL_APIC_NMI *nmi); 77167814Sjkimstatic void madt_parse_nmi(ACPI_MADT_NMI_SOURCE *nmi); 78121992Sjhbstatic int madt_probe(void); 79121992Sjhbstatic int madt_probe_cpus(void); 80167814Sjkimstatic void madt_probe_cpus_handler(ACPI_SUBTABLE_HEADER *entry, 81167814Sjkim void *arg __unused); 82121992Sjhbstatic void madt_register(void *dummy); 83121992Sjhbstatic int madt_setup_local(void); 84121992Sjhbstatic int madt_setup_io(void); 85197439Sjhbstatic void madt_walk_table(acpi_subtable_handler *handler, void *arg); 86121992Sjhb 87121992Sjhbstatic struct apic_enumerator madt_enumerator = { 88121992Sjhb "MADT", 89121992Sjhb madt_probe, 90121992Sjhb madt_probe_cpus, 91121992Sjhb madt_setup_local, 92121992Sjhb madt_setup_io 93121992Sjhb}; 94121992Sjhb 95121992Sjhb/* 96121992Sjhb * Look for an ACPI Multiple APIC Description Table ("APIC") 97121992Sjhb */ 98121992Sjhbstatic int 99121992Sjhbmadt_probe(void) 100121992Sjhb{ 101121992Sjhb 102197439Sjhb madt_physaddr = acpi_find_table(ACPI_SIG_MADT); 103197439Sjhb if (madt_physaddr == 0) 104121992Sjhb return (ENXIO); 105121992Sjhb return (0); 106121992Sjhb} 107121992Sjhb 108121992Sjhb/* 109121992Sjhb * Run through the MP table enumerating CPUs. 110121992Sjhb */ 111121992Sjhbstatic int 112121992Sjhbmadt_probe_cpus(void) 113121992Sjhb{ 114121992Sjhb 115197439Sjhb madt = acpi_map_table(madt_physaddr, ACPI_SIG_MADT); 116197439Sjhb madt_length = madt->Header.Length; 117121992Sjhb KASSERT(madt != NULL, ("Unable to re-map MADT")); 118121992Sjhb madt_walk_table(madt_probe_cpus_handler, NULL); 119197439Sjhb acpi_unmap_table(madt); 120121992Sjhb madt = NULL; 121121992Sjhb return (0); 122121992Sjhb} 123121992Sjhb 124121992Sjhb/* 125121992Sjhb * Initialize the local APIC on the BSP. 126121992Sjhb */ 127121992Sjhbstatic int 128121992Sjhbmadt_setup_local(void) 129121992Sjhb{ 130121992Sjhb 131161223Sjhb madt = pmap_mapbios(madt_physaddr, madt_length); 132167814Sjkim lapic_init(madt->Address); 133121992Sjhb printf("ACPI APIC Table: <%.*s %.*s>\n", 134167814Sjkim (int)sizeof(madt->Header.OemId), madt->Header.OemId, 135167814Sjkim (int)sizeof(madt->Header.OemTableId), madt->Header.OemTableId); 136121992Sjhb 137121992Sjhb /* 138121992Sjhb * We ignore 64-bit local APIC override entries. Should we 139121992Sjhb * perhaps emit a warning here if we find one? 140121992Sjhb */ 141121992Sjhb return (0); 142121992Sjhb} 143121992Sjhb 144121992Sjhb/* 145125048Sjhb * Enumerate I/O APICs and setup interrupt sources. 146121992Sjhb */ 147121992Sjhbstatic int 148121992Sjhbmadt_setup_io(void) 149121992Sjhb{ 150128930Sjhb void *ioapic; 151128930Sjhb u_int pin; 152121992Sjhb int i; 153121992Sjhb 154125048Sjhb /* Try to initialize ACPI so that we can access the FADT. */ 155125048Sjhb i = acpi_Startup(); 156125048Sjhb if (ACPI_FAILURE(i)) { 157125048Sjhb printf("MADT: ACPI Startup failed with %s\n", 158125048Sjhb AcpiFormatException(i)); 159125048Sjhb printf("Try disabling either ACPI or apic support.\n"); 160125048Sjhb panic("Using MADT but ACPI doesn't work"); 161125048Sjhb } 162233623Sjhb 163233623Sjhb ioapics = malloc(sizeof(*ioapics) * (MAX_APIC_ID + 1), M_MADT, 164233623Sjhb M_WAITOK | M_ZERO); 165233623Sjhb 166121992Sjhb /* First, we run through adding I/O APIC's. */ 167121992Sjhb madt_walk_table(madt_parse_apics, NULL); 168121992Sjhb 169121992Sjhb /* Second, we run through the table tweaking interrupt sources. */ 170121992Sjhb madt_walk_table(madt_parse_ints, NULL); 171121992Sjhb 172128930Sjhb /* 173128930Sjhb * If there was not an explicit override entry for the SCI, 174128930Sjhb * force it to use level trigger and active-low polarity. 175128930Sjhb */ 176128930Sjhb if (!madt_found_sci_override) { 177167814Sjkim if (madt_find_interrupt(AcpiGbl_FADT.SciInterrupt, &ioapic, 178167814Sjkim &pin) != 0) 179167814Sjkim printf("MADT: Could not find APIC for SCI IRQ %u\n", 180167814Sjkim AcpiGbl_FADT.SciInterrupt); 181128930Sjhb else { 182128930Sjhb printf( 183128930Sjhb "MADT: Forcing active-low polarity and level trigger for SCI\n"); 184128930Sjhb ioapic_set_polarity(ioapic, pin, INTR_POLARITY_LOW); 185128930Sjhb ioapic_set_triggermode(ioapic, pin, INTR_TRIGGER_LEVEL); 186128930Sjhb } 187128930Sjhb } 188128930Sjhb 189121992Sjhb /* Third, we register all the I/O APIC's. */ 190169395Sjhb for (i = 0; i <= MAX_APIC_ID; i++) 191121992Sjhb if (ioapics[i].io_apic != NULL) 192121992Sjhb ioapic_register(ioapics[i].io_apic); 193121992Sjhb 194121992Sjhb /* Finally, we throw the switch to enable the I/O APIC's. */ 195121992Sjhb acpi_SetDefaultIntrModel(ACPI_INTR_APIC); 196121992Sjhb 197233623Sjhb free(ioapics, M_MADT); 198233623Sjhb ioapics = NULL; 199233623Sjhb 200121992Sjhb return (0); 201121992Sjhb} 202121992Sjhb 203121992Sjhbstatic void 204121992Sjhbmadt_register(void *dummy __unused) 205121992Sjhb{ 206121992Sjhb 207121992Sjhb apic_register_enumerator(&madt_enumerator); 208121992Sjhb} 209215009SjhbSYSINIT(madt_register, SI_SUB_TUNABLES - 1, SI_ORDER_FIRST, madt_register, NULL); 210121992Sjhb 211121992Sjhb/* 212121992Sjhb * Call the handler routine for each entry in the MADT table. 213121992Sjhb */ 214121992Sjhbstatic void 215197439Sjhbmadt_walk_table(acpi_subtable_handler *handler, void *arg) 216121992Sjhb{ 217121992Sjhb 218197439Sjhb acpi_walk_subtables(madt + 1, (char *)madt + madt->Header.Length, 219197439Sjhb handler, arg); 220121992Sjhb} 221121992Sjhb 222121992Sjhbstatic void 223167814Sjkimmadt_probe_cpus_handler(ACPI_SUBTABLE_HEADER *entry, void *arg) 224121992Sjhb{ 225167814Sjkim ACPI_MADT_LOCAL_APIC *proc; 226121992Sjhb struct lapic_info *la; 227121992Sjhb 228121992Sjhb switch (entry->Type) { 229167814Sjkim case ACPI_MADT_TYPE_LOCAL_APIC: 230121992Sjhb /* 231121992Sjhb * The MADT does not include a BSP flag, so we have to 232121992Sjhb * let the MP code figure out which CPU is the BSP on 233121992Sjhb * its own. 234121992Sjhb */ 235167814Sjkim proc = (ACPI_MADT_LOCAL_APIC *)entry; 236121992Sjhb if (bootverbose) 237167814Sjkim printf("MADT: Found CPU APIC ID %u ACPI ID %u: %s\n", 238167814Sjkim proc->Id, proc->ProcessorId, 239167814Sjkim (proc->LapicFlags & ACPI_MADT_ENABLED) ? 240167814Sjkim "enabled" : "disabled"); 241167814Sjkim if (!(proc->LapicFlags & ACPI_MADT_ENABLED)) 242130310Sjhb break; 243169395Sjhb if (proc->Id > MAX_APIC_ID) 244167814Sjkim panic("%s: CPU ID %u too high", __func__, proc->Id); 245167814Sjkim la = &lapics[proc->Id]; 246130310Sjhb KASSERT(la->la_enabled == 0, 247167814Sjkim ("Duplicate local APIC ID %u", proc->Id)); 248130310Sjhb la->la_enabled = 1; 249129960Sjhb la->la_acpi_id = proc->ProcessorId; 250167814Sjkim lapic_create(proc->Id, 0); 251121992Sjhb break; 252121992Sjhb } 253121992Sjhb} 254121992Sjhb 255121992Sjhb 256121992Sjhb/* 257121992Sjhb * Add an I/O APIC from an entry in the table. 258121992Sjhb */ 259121992Sjhbstatic void 260167814Sjkimmadt_parse_apics(ACPI_SUBTABLE_HEADER *entry, void *arg __unused) 261121992Sjhb{ 262167814Sjkim ACPI_MADT_IO_APIC *apic; 263121992Sjhb 264121992Sjhb switch (entry->Type) { 265167814Sjkim case ACPI_MADT_TYPE_IO_APIC: 266167814Sjkim apic = (ACPI_MADT_IO_APIC *)entry; 267121992Sjhb if (bootverbose) 268167814Sjkim printf( 269167814Sjkim "MADT: Found IO APIC ID %u, Interrupt %u at %p\n", 270167814Sjkim apic->Id, apic->GlobalIrqBase, 271123326Snjl (void *)(uintptr_t)apic->Address); 272169395Sjhb if (apic->Id > MAX_APIC_ID) 273167814Sjkim panic("%s: I/O APIC ID %u too high", __func__, 274167814Sjkim apic->Id); 275167814Sjkim if (ioapics[apic->Id].io_apic != NULL) 276167814Sjkim panic("%s: Double APIC ID %u", __func__, apic->Id); 277189404Sjhb if (apic->GlobalIrqBase >= FIRST_MSI_INT) { 278189404Sjhb printf("MADT: Ignoring bogus I/O APIC ID %u", apic->Id); 279189404Sjhb break; 280189404Sjhb } 281167814Sjkim ioapics[apic->Id].io_apic = ioapic_create(apic->Address, 282167814Sjkim apic->Id, apic->GlobalIrqBase); 283167814Sjkim ioapics[apic->Id].io_vector = apic->GlobalIrqBase; 284121992Sjhb break; 285121992Sjhb default: 286121992Sjhb break; 287121992Sjhb } 288121992Sjhb} 289121992Sjhb 290121992Sjhb/* 291129128Sjhb * Determine properties of an interrupt source. Note that for ACPI these 292129128Sjhb * functions are only used for ISA interrupts, so we assume ISA bus values 293128930Sjhb * (Active Hi, Edge Triggered) for conforming values except for the ACPI 294129128Sjhb * SCI for which we use Active Lo, Level Triggered. 295121992Sjhb */ 296128930Sjhbstatic enum intr_polarity 297167814Sjkiminterrupt_polarity(UINT16 IntiFlags, UINT8 Source) 298121992Sjhb{ 299121992Sjhb 300167814Sjkim switch (IntiFlags & ACPI_MADT_POLARITY_MASK) { 301263859Stakawata default: 302263859Stakawata printf("WARNING: Bogus Interrupt Polarity. Assume CONFORMS"); 303263859Stakawata /* FALLTHROUGH*/ 304167814Sjkim case ACPI_MADT_POLARITY_CONFORMS: 305167814Sjkim if (Source == AcpiGbl_FADT.SciInterrupt) 306128930Sjhb return (INTR_POLARITY_LOW); 307128930Sjhb else 308128930Sjhb return (INTR_POLARITY_HIGH); 309167814Sjkim case ACPI_MADT_POLARITY_ACTIVE_HIGH: 310128930Sjhb return (INTR_POLARITY_HIGH); 311167814Sjkim case ACPI_MADT_POLARITY_ACTIVE_LOW: 312263859Stakawata return (INTR_POLARITY_LOW); 313121992Sjhb } 314121992Sjhb} 315121992Sjhb 316128930Sjhbstatic enum intr_trigger 317167814Sjkiminterrupt_trigger(UINT16 IntiFlags, UINT8 Source) 318121992Sjhb{ 319121992Sjhb 320167814Sjkim switch (IntiFlags & ACPI_MADT_TRIGGER_MASK) { 321263859Stakawata default: 322263859Stakawata printf("WARNING: Bogus Interrupt Trigger Mode. Assume CONFORMS."); 323263859Stakawata /*FALLTHROUGH*/ 324167814Sjkim case ACPI_MADT_TRIGGER_CONFORMS: 325167814Sjkim if (Source == AcpiGbl_FADT.SciInterrupt) 326128930Sjhb return (INTR_TRIGGER_LEVEL); 327128930Sjhb else 328128930Sjhb return (INTR_TRIGGER_EDGE); 329167814Sjkim case ACPI_MADT_TRIGGER_EDGE: 330128930Sjhb return (INTR_TRIGGER_EDGE); 331167814Sjkim case ACPI_MADT_TRIGGER_LEVEL: 332263859Stakawata return (INTR_TRIGGER_LEVEL); 333121992Sjhb } 334121992Sjhb} 335121992Sjhb 336121992Sjhb/* 337121992Sjhb * Find the local APIC ID associated with a given ACPI Processor ID. 338121992Sjhb */ 339121992Sjhbstatic int 340121992Sjhbmadt_find_cpu(u_int acpi_id, u_int *apic_id) 341121992Sjhb{ 342129960Sjhb int i; 343121992Sjhb 344169395Sjhb for (i = 0; i <= MAX_APIC_ID; i++) { 345130310Sjhb if (!lapics[i].la_enabled) 346129960Sjhb continue; 347129960Sjhb if (lapics[i].la_acpi_id != acpi_id) 348129960Sjhb continue; 349129960Sjhb *apic_id = i; 350130310Sjhb return (0); 351129960Sjhb } 352129960Sjhb return (ENOENT); 353121992Sjhb} 354121992Sjhb 355121992Sjhb/* 356121992Sjhb * Find the IO APIC and pin on that APIC associated with a given global 357121992Sjhb * interrupt. 358121992Sjhb */ 359121992Sjhbstatic int 360121992Sjhbmadt_find_interrupt(int intr, void **apic, u_int *pin) 361121992Sjhb{ 362121992Sjhb int i, best; 363121992Sjhb 364121992Sjhb best = -1; 365169395Sjhb for (i = 0; i <= MAX_APIC_ID; i++) { 366121992Sjhb if (ioapics[i].io_apic == NULL || 367121992Sjhb ioapics[i].io_vector > intr) 368121992Sjhb continue; 369121992Sjhb if (best == -1 || 370121992Sjhb ioapics[best].io_vector < ioapics[i].io_vector) 371121992Sjhb best = i; 372121992Sjhb } 373121992Sjhb if (best == -1) 374121992Sjhb return (ENOENT); 375121992Sjhb *apic = ioapics[best].io_apic; 376121992Sjhb *pin = intr - ioapics[best].io_vector; 377121992Sjhb if (*pin > 32) 378121992Sjhb printf("WARNING: Found intpin of %u for vector %d\n", *pin, 379121992Sjhb intr); 380121992Sjhb return (0); 381121992Sjhb} 382121992Sjhb 383121992Sjhb/* 384121992Sjhb * Parse an interrupt source override for an ISA interrupt. 385121992Sjhb */ 386121992Sjhbstatic void 387167814Sjkimmadt_parse_interrupt_override(ACPI_MADT_INTERRUPT_OVERRIDE *intr) 388121992Sjhb{ 389122149Sjhb void *new_ioapic, *old_ioapic; 390122149Sjhb u_int new_pin, old_pin; 391128930Sjhb enum intr_trigger trig; 392128930Sjhb enum intr_polarity pol; 393128930Sjhb char buf[64]; 394121992Sjhb 395167814Sjkim if (acpi_quirks & ACPI_Q_MADT_IRQ0 && intr->SourceIrq == 0 && 396167814Sjkim intr->GlobalIrq == 2) { 397142257Sjhb if (bootverbose) 398142257Sjhb printf("MADT: Skipping timer override\n"); 399142257Sjhb return; 400142257Sjhb } 401121992Sjhb if (bootverbose) 402142257Sjhb printf("MADT: Interrupt override: source %u, irq %u\n", 403167814Sjkim intr->SourceIrq, intr->GlobalIrq); 404121992Sjhb KASSERT(intr->Bus == 0, ("bus for interrupt overrides must be zero")); 405167814Sjkim if (madt_find_interrupt(intr->GlobalIrq, &new_ioapic, &new_pin) != 0) { 406167814Sjkim printf("MADT: Could not find APIC for vector %u (IRQ %u)\n", 407167814Sjkim intr->GlobalIrq, intr->SourceIrq); 408121992Sjhb return; 409121992Sjhb } 410121992Sjhb 411125048Sjhb /* 412128930Sjhb * Lookup the appropriate trigger and polarity modes for this 413128930Sjhb * entry. 414128930Sjhb */ 415167814Sjkim trig = interrupt_trigger(intr->IntiFlags, intr->SourceIrq); 416167814Sjkim pol = interrupt_polarity(intr->IntiFlags, intr->SourceIrq); 417128930Sjhb 418128930Sjhb /* 419125048Sjhb * If the SCI is identity mapped but has edge trigger and 420128329Sjhb * active-hi polarity or the force_sci_lo tunable is set, 421128329Sjhb * force it to use level/lo. 422125048Sjhb */ 423167814Sjkim if (intr->SourceIrq == AcpiGbl_FADT.SciInterrupt) { 424128930Sjhb madt_found_sci_override = 1; 425128930Sjhb if (getenv_string("hw.acpi.sci.trigger", buf, sizeof(buf))) { 426128930Sjhb if (tolower(buf[0]) == 'e') 427128930Sjhb trig = INTR_TRIGGER_EDGE; 428128930Sjhb else if (tolower(buf[0]) == 'l') 429128930Sjhb trig = INTR_TRIGGER_LEVEL; 430128930Sjhb else 431128930Sjhb panic( 432128930Sjhb "Invalid trigger %s: must be 'edge' or 'level'", 433128930Sjhb buf); 434128930Sjhb printf("MADT: Forcing SCI to %s trigger\n", 435128930Sjhb trig == INTR_TRIGGER_EDGE ? "edge" : "level"); 436128930Sjhb } 437128930Sjhb if (getenv_string("hw.acpi.sci.polarity", buf, sizeof(buf))) { 438128930Sjhb if (tolower(buf[0]) == 'h') 439128930Sjhb pol = INTR_POLARITY_HIGH; 440128930Sjhb else if (tolower(buf[0]) == 'l') 441128930Sjhb pol = INTR_POLARITY_LOW; 442128930Sjhb else 443128930Sjhb panic( 444128930Sjhb "Invalid polarity %s: must be 'high' or 'low'", 445128930Sjhb buf); 446128930Sjhb printf("MADT: Forcing SCI to active %s polarity\n", 447128930Sjhb pol == INTR_POLARITY_HIGH ? "high" : "low"); 448128930Sjhb } 449128930Sjhb } 450125048Sjhb 451128930Sjhb /* Remap the IRQ if it is mapped to a different interrupt vector. */ 452167814Sjkim if (intr->SourceIrq != intr->GlobalIrq) { 453125048Sjhb /* 454125048Sjhb * If the SCI is remapped to a non-ISA global interrupt, 455125048Sjhb * then override the vector we use to setup and allocate 456125048Sjhb * the interrupt. 457125048Sjhb */ 458167814Sjkim if (intr->GlobalIrq > 15 && 459167814Sjkim intr->SourceIrq == AcpiGbl_FADT.SciInterrupt) 460167814Sjkim acpi_OverrideInterruptLevel(intr->GlobalIrq); 461122502Sjhb else 462167814Sjkim ioapic_remap_vector(new_ioapic, new_pin, 463167814Sjkim intr->SourceIrq); 464167814Sjkim if (madt_find_interrupt(intr->SourceIrq, &old_ioapic, 465122149Sjhb &old_pin) != 0) 466167814Sjkim printf("MADT: Could not find APIC for source IRQ %u\n", 467167814Sjkim intr->SourceIrq); 468122172Sjhb else if (ioapic_get_vector(old_ioapic, old_pin) == 469167814Sjkim intr->SourceIrq) 470122149Sjhb ioapic_disable_pin(old_ioapic, old_pin); 471122149Sjhb } 472128930Sjhb 473128930Sjhb /* Program the polarity and trigger mode. */ 474128930Sjhb ioapic_set_triggermode(new_ioapic, new_pin, trig); 475128930Sjhb ioapic_set_polarity(new_ioapic, new_pin, pol); 476121992Sjhb} 477121992Sjhb 478121992Sjhb/* 479121992Sjhb * Parse an entry for an NMI routed to an IO APIC. 480121992Sjhb */ 481121992Sjhbstatic void 482167814Sjkimmadt_parse_nmi(ACPI_MADT_NMI_SOURCE *nmi) 483121992Sjhb{ 484121992Sjhb void *ioapic; 485121992Sjhb u_int pin; 486121992Sjhb 487167814Sjkim if (madt_find_interrupt(nmi->GlobalIrq, &ioapic, &pin) != 0) { 488167814Sjkim printf("MADT: Could not find APIC for vector %u\n", 489167814Sjkim nmi->GlobalIrq); 490121992Sjhb return; 491121992Sjhb } 492121992Sjhb 493121992Sjhb ioapic_set_nmi(ioapic, pin); 494167814Sjkim if (!(nmi->IntiFlags & ACPI_MADT_TRIGGER_CONFORMS)) 495121992Sjhb ioapic_set_triggermode(ioapic, pin, 496167814Sjkim interrupt_trigger(nmi->IntiFlags, 0)); 497263794Stakawata if (!(nmi->IntiFlags & ACPI_MADT_POLARITY_CONFORMS)) 498121992Sjhb ioapic_set_polarity(ioapic, pin, 499167814Sjkim interrupt_polarity(nmi->IntiFlags, 0)); 500121992Sjhb} 501121992Sjhb 502121992Sjhb/* 503121992Sjhb * Parse an entry for an NMI routed to a local APIC LVT pin. 504121992Sjhb */ 505121992Sjhbstatic void 506167814Sjkimmadt_parse_local_nmi(ACPI_MADT_LOCAL_APIC_NMI *nmi) 507121992Sjhb{ 508121992Sjhb u_int apic_id, pin; 509121992Sjhb 510123326Snjl if (nmi->ProcessorId == 0xff) 511121992Sjhb apic_id = APIC_ID_ALL; 512123326Snjl else if (madt_find_cpu(nmi->ProcessorId, &apic_id) != 0) { 513121992Sjhb if (bootverbose) 514167814Sjkim printf("MADT: Ignoring local NMI routed to " 515167814Sjkim "ACPI CPU %u\n", nmi->ProcessorId); 516121992Sjhb return; 517121992Sjhb } 518123326Snjl if (nmi->Lint == 0) 519259140Sjhb pin = APIC_LVT_LINT0; 520121992Sjhb else 521259140Sjhb pin = APIC_LVT_LINT1; 522121992Sjhb lapic_set_lvt_mode(apic_id, pin, APIC_LVT_DM_NMI); 523167814Sjkim if (!(nmi->IntiFlags & ACPI_MADT_TRIGGER_CONFORMS)) 524121992Sjhb lapic_set_lvt_triggermode(apic_id, pin, 525167814Sjkim interrupt_trigger(nmi->IntiFlags, 0)); 526167814Sjkim if (!(nmi->IntiFlags & ACPI_MADT_POLARITY_CONFORMS)) 527121992Sjhb lapic_set_lvt_polarity(apic_id, pin, 528167814Sjkim interrupt_polarity(nmi->IntiFlags, 0)); 529121992Sjhb} 530121992Sjhb 531121992Sjhb/* 532121992Sjhb * Parse interrupt entries. 533121992Sjhb */ 534121992Sjhbstatic void 535167814Sjkimmadt_parse_ints(ACPI_SUBTABLE_HEADER *entry, void *arg __unused) 536121992Sjhb{ 537121992Sjhb 538121992Sjhb switch (entry->Type) { 539167814Sjkim case ACPI_MADT_TYPE_INTERRUPT_OVERRIDE: 540121992Sjhb madt_parse_interrupt_override( 541167814Sjkim (ACPI_MADT_INTERRUPT_OVERRIDE *)entry); 542121992Sjhb break; 543167814Sjkim case ACPI_MADT_TYPE_NMI_SOURCE: 544167814Sjkim madt_parse_nmi((ACPI_MADT_NMI_SOURCE *)entry); 545121992Sjhb break; 546167814Sjkim case ACPI_MADT_TYPE_LOCAL_APIC_NMI: 547167814Sjkim madt_parse_local_nmi((ACPI_MADT_LOCAL_APIC_NMI *)entry); 548121992Sjhb break; 549121992Sjhb } 550121992Sjhb} 551121992Sjhb 552121992Sjhb/* 553121992Sjhb * Setup per-CPU ACPI IDs. 554121992Sjhb */ 555121992Sjhbstatic void 556121992Sjhbmadt_set_ids(void *dummy) 557121992Sjhb{ 558129960Sjhb struct lapic_info *la; 559121992Sjhb struct pcpu *pc; 560129960Sjhb u_int i; 561121992Sjhb 562121992Sjhb if (madt == NULL) 563121992Sjhb return; 564209059Sjhb CPU_FOREACH(i) { 565121992Sjhb pc = pcpu_find(i); 566167814Sjkim KASSERT(pc != NULL, ("no pcpu data for CPU %u", i)); 567129960Sjhb la = &lapics[pc->pc_apic_id]; 568130310Sjhb if (!la->la_enabled) 569129960Sjhb panic("APIC: CPU with APIC ID %u is not enabled", 570129960Sjhb pc->pc_apic_id); 571129960Sjhb pc->pc_acpi_id = la->la_acpi_id; 572129960Sjhb if (bootverbose) 573129960Sjhb printf("APIC: CPU %u has ACPI ID %u\n", i, 574129960Sjhb la->la_acpi_id); 575121992Sjhb } 576121992Sjhb} 577256073SgibbsSYSINIT(madt_set_ids, SI_SUB_CPU, SI_ORDER_MIDDLE, madt_set_ids, NULL); 578