madt.c revision 197439
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 * 3. Neither the name of the author nor the names of any co-contributors 14121992Sjhb * may be used to endorse or promote products derived from this software 15121992Sjhb * without specific prior written permission. 16121992Sjhb * 17121992Sjhb * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18121992Sjhb * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19121992Sjhb * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20121992Sjhb * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21121992Sjhb * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22121992Sjhb * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23121992Sjhb * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24121992Sjhb * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25121992Sjhb * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26121992Sjhb * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27121992Sjhb * SUCH DAMAGE. 28121992Sjhb */ 29121992Sjhb 30121992Sjhb#include <sys/cdefs.h> 31121992Sjhb__FBSDID("$FreeBSD: head/sys/i386/acpica/madt.c 197439 2009-09-23 15:42:35Z jhb $"); 32121992Sjhb 33121992Sjhb#include <sys/param.h> 34121992Sjhb#include <sys/systm.h> 35121992Sjhb#include <sys/bus.h> 36121992Sjhb#include <sys/kernel.h> 37121992Sjhb#include <sys/malloc.h> 38121992Sjhb#include <sys/smp.h> 39121992Sjhb#include <vm/vm.h> 40121992Sjhb#include <vm/pmap.h> 41121992Sjhb 42121992Sjhb#include <machine/apicreg.h> 43121992Sjhb#include <machine/intr_machdep.h> 44121992Sjhb#include <machine/apicvar.h> 45121992Sjhb 46193530Sjkim#include <contrib/dev/acpica/include/acpi.h> 47193530Sjkim#include <contrib/dev/acpica/include/actables.h> 48193530Sjkim 49121992Sjhb#include <dev/acpica/acpivar.h> 50121992Sjhb#include <dev/pci/pcivar.h> 51121992Sjhb 52121992Sjhb/* These two arrays are indexed by APIC IDs. */ 53121992Sjhbstruct ioapic_info { 54121992Sjhb void *io_apic; 55121992Sjhb UINT32 io_vector; 56169395Sjhb} ioapics[MAX_APIC_ID + 1]; 57121992Sjhb 58121992Sjhbstruct lapic_info { 59121992Sjhb u_int la_enabled:1; 60129960Sjhb u_int la_acpi_id:8; 61169395Sjhb} lapics[MAX_APIC_ID + 1]; 62121992Sjhb 63128930Sjhbstatic int madt_found_sci_override; 64167814Sjkimstatic ACPI_TABLE_MADT *madt; 65121992Sjhbstatic vm_paddr_t madt_physaddr; 66121992Sjhbstatic vm_offset_t madt_length; 67121992Sjhb 68151897SrwatsonMALLOC_DEFINE(M_MADT, "madt_table", "ACPI MADT Table Items"); 69121992Sjhb 70167814Sjkimstatic enum intr_polarity interrupt_polarity(UINT16 IntiFlags, UINT8 Source); 71167814Sjkimstatic enum intr_trigger interrupt_trigger(UINT16 IntiFlags, UINT8 Source); 72121992Sjhbstatic int madt_find_cpu(u_int acpi_id, u_int *apic_id); 73121992Sjhbstatic int madt_find_interrupt(int intr, void **apic, u_int *pin); 74167814Sjkimstatic void madt_parse_apics(ACPI_SUBTABLE_HEADER *entry, void *arg); 75167814Sjkimstatic void madt_parse_interrupt_override( 76167814Sjkim ACPI_MADT_INTERRUPT_OVERRIDE *intr); 77167814Sjkimstatic void madt_parse_ints(ACPI_SUBTABLE_HEADER *entry, 78167814Sjkim void *arg __unused); 79167814Sjkimstatic void madt_parse_local_nmi(ACPI_MADT_LOCAL_APIC_NMI *nmi); 80167814Sjkimstatic void madt_parse_nmi(ACPI_MADT_NMI_SOURCE *nmi); 81121992Sjhbstatic int madt_probe(void); 82121992Sjhbstatic int madt_probe_cpus(void); 83167814Sjkimstatic void madt_probe_cpus_handler(ACPI_SUBTABLE_HEADER *entry, 84167814Sjkim void *arg __unused); 85121992Sjhbstatic void madt_register(void *dummy); 86121992Sjhbstatic int madt_setup_local(void); 87121992Sjhbstatic int madt_setup_io(void); 88197439Sjhbstatic void madt_walk_table(acpi_subtable_handler *handler, void *arg); 89121992Sjhb 90121992Sjhbstatic struct apic_enumerator madt_enumerator = { 91121992Sjhb "MADT", 92121992Sjhb madt_probe, 93121992Sjhb madt_probe_cpus, 94121992Sjhb madt_setup_local, 95121992Sjhb madt_setup_io 96121992Sjhb}; 97121992Sjhb 98121992Sjhb 99121992Sjhb/* 100121992Sjhb * Look for an ACPI Multiple APIC Description Table ("APIC") 101121992Sjhb */ 102121992Sjhbstatic int 103121992Sjhbmadt_probe(void) 104121992Sjhb{ 105121992Sjhb 106197439Sjhb madt_physaddr = acpi_find_table(ACPI_SIG_MADT); 107197439Sjhb if (madt_physaddr == 0) 108121992Sjhb return (ENXIO); 109121992Sjhb return (0); 110121992Sjhb} 111121992Sjhb 112121992Sjhb/* 113121992Sjhb * Run through the MP table enumerating CPUs. 114121992Sjhb */ 115121992Sjhbstatic int 116121992Sjhbmadt_probe_cpus(void) 117121992Sjhb{ 118121992Sjhb 119197439Sjhb madt = acpi_map_table(madt_physaddr, ACPI_SIG_MADT); 120197439Sjhb madt_length = madt->Header.Length; 121121992Sjhb KASSERT(madt != NULL, ("Unable to re-map MADT")); 122121992Sjhb madt_walk_table(madt_probe_cpus_handler, NULL); 123197439Sjhb acpi_unmap_table(madt); 124121992Sjhb madt = NULL; 125121992Sjhb return (0); 126121992Sjhb} 127121992Sjhb 128121992Sjhb/* 129121992Sjhb * Initialize the local APIC on the BSP. 130121992Sjhb */ 131121992Sjhbstatic int 132121992Sjhbmadt_setup_local(void) 133121992Sjhb{ 134121992Sjhb 135161223Sjhb madt = pmap_mapbios(madt_physaddr, madt_length); 136167814Sjkim lapic_init(madt->Address); 137121992Sjhb printf("ACPI APIC Table: <%.*s %.*s>\n", 138167814Sjkim (int)sizeof(madt->Header.OemId), madt->Header.OemId, 139167814Sjkim (int)sizeof(madt->Header.OemTableId), madt->Header.OemTableId); 140121992Sjhb 141121992Sjhb /* 142121992Sjhb * We ignore 64-bit local APIC override entries. Should we 143121992Sjhb * perhaps emit a warning here if we find one? 144121992Sjhb */ 145121992Sjhb return (0); 146121992Sjhb} 147121992Sjhb 148121992Sjhb/* 149125048Sjhb * Enumerate I/O APICs and setup interrupt sources. 150121992Sjhb */ 151121992Sjhbstatic int 152121992Sjhbmadt_setup_io(void) 153121992Sjhb{ 154128930Sjhb void *ioapic; 155128930Sjhb u_int pin; 156121992Sjhb int i; 157121992Sjhb 158125048Sjhb /* Try to initialize ACPI so that we can access the FADT. */ 159125048Sjhb i = acpi_Startup(); 160125048Sjhb if (ACPI_FAILURE(i)) { 161125048Sjhb printf("MADT: ACPI Startup failed with %s\n", 162125048Sjhb AcpiFormatException(i)); 163125048Sjhb printf("Try disabling either ACPI or apic support.\n"); 164125048Sjhb panic("Using MADT but ACPI doesn't work"); 165125048Sjhb } 166125048Sjhb 167121992Sjhb /* First, we run through adding I/O APIC's. */ 168121992Sjhb madt_walk_table(madt_parse_apics, NULL); 169121992Sjhb 170121992Sjhb /* Second, we run through the table tweaking interrupt sources. */ 171121992Sjhb madt_walk_table(madt_parse_ints, NULL); 172121992Sjhb 173128930Sjhb /* 174128930Sjhb * If there was not an explicit override entry for the SCI, 175128930Sjhb * force it to use level trigger and active-low polarity. 176128930Sjhb */ 177128930Sjhb if (!madt_found_sci_override) { 178167814Sjkim if (madt_find_interrupt(AcpiGbl_FADT.SciInterrupt, &ioapic, 179167814Sjkim &pin) != 0) 180167814Sjkim printf("MADT: Could not find APIC for SCI IRQ %u\n", 181167814Sjkim AcpiGbl_FADT.SciInterrupt); 182128930Sjhb else { 183128930Sjhb printf( 184128930Sjhb "MADT: Forcing active-low polarity and level trigger for SCI\n"); 185128930Sjhb ioapic_set_polarity(ioapic, pin, INTR_POLARITY_LOW); 186128930Sjhb ioapic_set_triggermode(ioapic, pin, INTR_TRIGGER_LEVEL); 187128930Sjhb } 188128930Sjhb } 189128930Sjhb 190121992Sjhb /* Third, we register all the I/O APIC's. */ 191169395Sjhb for (i = 0; i <= MAX_APIC_ID; i++) 192121992Sjhb if (ioapics[i].io_apic != NULL) 193121992Sjhb ioapic_register(ioapics[i].io_apic); 194121992Sjhb 195121992Sjhb /* Finally, we throw the switch to enable the I/O APIC's. */ 196121992Sjhb acpi_SetDefaultIntrModel(ACPI_INTR_APIC); 197121992Sjhb 198121992Sjhb return (0); 199121992Sjhb} 200121992Sjhb 201121992Sjhbstatic void 202121992Sjhbmadt_register(void *dummy __unused) 203121992Sjhb{ 204121992Sjhb 205121992Sjhb apic_register_enumerator(&madt_enumerator); 206121992Sjhb} 207177253SrwatsonSYSINIT(madt_register, SI_SUB_CPU - 1, SI_ORDER_SECOND, madt_register, NULL); 208121992Sjhb 209121992Sjhb/* 210121992Sjhb * Call the handler routine for each entry in the MADT table. 211121992Sjhb */ 212121992Sjhbstatic void 213197439Sjhbmadt_walk_table(acpi_subtable_handler *handler, void *arg) 214121992Sjhb{ 215121992Sjhb 216197439Sjhb acpi_walk_subtables(madt + 1, (char *)madt + madt->Header.Length, 217197439Sjhb handler, arg); 218121992Sjhb} 219121992Sjhb 220121992Sjhbstatic void 221167814Sjkimmadt_probe_cpus_handler(ACPI_SUBTABLE_HEADER *entry, void *arg) 222121992Sjhb{ 223167814Sjkim ACPI_MADT_LOCAL_APIC *proc; 224121992Sjhb struct lapic_info *la; 225121992Sjhb 226121992Sjhb switch (entry->Type) { 227167814Sjkim case ACPI_MADT_TYPE_LOCAL_APIC: 228121992Sjhb /* 229121992Sjhb * The MADT does not include a BSP flag, so we have to 230121992Sjhb * let the MP code figure out which CPU is the BSP on 231121992Sjhb * its own. 232121992Sjhb */ 233167814Sjkim proc = (ACPI_MADT_LOCAL_APIC *)entry; 234121992Sjhb if (bootverbose) 235167814Sjkim printf("MADT: Found CPU APIC ID %u ACPI ID %u: %s\n", 236167814Sjkim proc->Id, proc->ProcessorId, 237167814Sjkim (proc->LapicFlags & ACPI_MADT_ENABLED) ? 238167814Sjkim "enabled" : "disabled"); 239167814Sjkim if (!(proc->LapicFlags & ACPI_MADT_ENABLED)) 240130310Sjhb break; 241169395Sjhb if (proc->Id > MAX_APIC_ID) 242167814Sjkim panic("%s: CPU ID %u too high", __func__, proc->Id); 243167814Sjkim la = &lapics[proc->Id]; 244130310Sjhb KASSERT(la->la_enabled == 0, 245167814Sjkim ("Duplicate local APIC ID %u", proc->Id)); 246130310Sjhb la->la_enabled = 1; 247129960Sjhb la->la_acpi_id = proc->ProcessorId; 248167814Sjkim lapic_create(proc->Id, 0); 249121992Sjhb break; 250121992Sjhb } 251121992Sjhb} 252121992Sjhb 253121992Sjhb 254121992Sjhb/* 255121992Sjhb * Add an I/O APIC from an entry in the table. 256121992Sjhb */ 257121992Sjhbstatic void 258167814Sjkimmadt_parse_apics(ACPI_SUBTABLE_HEADER *entry, void *arg __unused) 259121992Sjhb{ 260167814Sjkim ACPI_MADT_IO_APIC *apic; 261121992Sjhb 262121992Sjhb switch (entry->Type) { 263167814Sjkim case ACPI_MADT_TYPE_IO_APIC: 264167814Sjkim apic = (ACPI_MADT_IO_APIC *)entry; 265121992Sjhb if (bootverbose) 266167814Sjkim printf( 267167814Sjkim "MADT: Found IO APIC ID %u, Interrupt %u at %p\n", 268167814Sjkim apic->Id, apic->GlobalIrqBase, 269123326Snjl (void *)(uintptr_t)apic->Address); 270169395Sjhb if (apic->Id > MAX_APIC_ID) 271167814Sjkim panic("%s: I/O APIC ID %u too high", __func__, 272167814Sjkim apic->Id); 273167814Sjkim if (ioapics[apic->Id].io_apic != NULL) 274167814Sjkim panic("%s: Double APIC ID %u", __func__, apic->Id); 275189404Sjhb if (apic->GlobalIrqBase >= FIRST_MSI_INT) { 276189404Sjhb printf("MADT: Ignoring bogus I/O APIC ID %u", apic->Id); 277189404Sjhb break; 278189404Sjhb } 279167814Sjkim ioapics[apic->Id].io_apic = ioapic_create(apic->Address, 280167814Sjkim apic->Id, apic->GlobalIrqBase); 281167814Sjkim ioapics[apic->Id].io_vector = apic->GlobalIrqBase; 282121992Sjhb break; 283121992Sjhb default: 284121992Sjhb break; 285121992Sjhb } 286121992Sjhb} 287121992Sjhb 288121992Sjhb/* 289129128Sjhb * Determine properties of an interrupt source. Note that for ACPI these 290129128Sjhb * functions are only used for ISA interrupts, so we assume ISA bus values 291128930Sjhb * (Active Hi, Edge Triggered) for conforming values except for the ACPI 292129128Sjhb * SCI for which we use Active Lo, Level Triggered. 293121992Sjhb */ 294128930Sjhbstatic enum intr_polarity 295167814Sjkiminterrupt_polarity(UINT16 IntiFlags, UINT8 Source) 296121992Sjhb{ 297121992Sjhb 298167814Sjkim switch (IntiFlags & ACPI_MADT_POLARITY_MASK) { 299167814Sjkim case ACPI_MADT_POLARITY_CONFORMS: 300167814Sjkim if (Source == AcpiGbl_FADT.SciInterrupt) 301128930Sjhb return (INTR_POLARITY_LOW); 302128930Sjhb else 303128930Sjhb return (INTR_POLARITY_HIGH); 304167814Sjkim case ACPI_MADT_POLARITY_ACTIVE_HIGH: 305128930Sjhb return (INTR_POLARITY_HIGH); 306167814Sjkim case ACPI_MADT_POLARITY_ACTIVE_LOW: 307128930Sjhb return (INTR_POLARITY_LOW); 308121992Sjhb default: 309121992Sjhb panic("Bogus Interrupt Polarity"); 310121992Sjhb } 311121992Sjhb} 312121992Sjhb 313128930Sjhbstatic enum intr_trigger 314167814Sjkiminterrupt_trigger(UINT16 IntiFlags, UINT8 Source) 315121992Sjhb{ 316121992Sjhb 317167814Sjkim switch (IntiFlags & ACPI_MADT_TRIGGER_MASK) { 318167814Sjkim case ACPI_MADT_TRIGGER_CONFORMS: 319167814Sjkim if (Source == AcpiGbl_FADT.SciInterrupt) 320128930Sjhb return (INTR_TRIGGER_LEVEL); 321128930Sjhb else 322128930Sjhb return (INTR_TRIGGER_EDGE); 323167814Sjkim case ACPI_MADT_TRIGGER_EDGE: 324128930Sjhb return (INTR_TRIGGER_EDGE); 325167814Sjkim case ACPI_MADT_TRIGGER_LEVEL: 326128930Sjhb return (INTR_TRIGGER_LEVEL); 327121992Sjhb default: 328121992Sjhb panic("Bogus Interrupt Trigger Mode"); 329121992Sjhb } 330121992Sjhb} 331121992Sjhb 332121992Sjhb/* 333121992Sjhb * Find the local APIC ID associated with a given ACPI Processor ID. 334121992Sjhb */ 335121992Sjhbstatic int 336121992Sjhbmadt_find_cpu(u_int acpi_id, u_int *apic_id) 337121992Sjhb{ 338129960Sjhb int i; 339121992Sjhb 340169395Sjhb for (i = 0; i <= MAX_APIC_ID; i++) { 341130310Sjhb if (!lapics[i].la_enabled) 342129960Sjhb continue; 343129960Sjhb if (lapics[i].la_acpi_id != acpi_id) 344129960Sjhb continue; 345129960Sjhb *apic_id = i; 346130310Sjhb return (0); 347129960Sjhb } 348129960Sjhb return (ENOENT); 349121992Sjhb} 350121992Sjhb 351121992Sjhb/* 352121992Sjhb * Find the IO APIC and pin on that APIC associated with a given global 353121992Sjhb * interrupt. 354121992Sjhb */ 355121992Sjhbstatic int 356121992Sjhbmadt_find_interrupt(int intr, void **apic, u_int *pin) 357121992Sjhb{ 358121992Sjhb int i, best; 359121992Sjhb 360121992Sjhb best = -1; 361169395Sjhb for (i = 0; i <= MAX_APIC_ID; i++) { 362121992Sjhb if (ioapics[i].io_apic == NULL || 363121992Sjhb ioapics[i].io_vector > intr) 364121992Sjhb continue; 365121992Sjhb if (best == -1 || 366121992Sjhb ioapics[best].io_vector < ioapics[i].io_vector) 367121992Sjhb best = i; 368121992Sjhb } 369121992Sjhb if (best == -1) 370121992Sjhb return (ENOENT); 371121992Sjhb *apic = ioapics[best].io_apic; 372121992Sjhb *pin = intr - ioapics[best].io_vector; 373121992Sjhb if (*pin > 32) 374121992Sjhb printf("WARNING: Found intpin of %u for vector %d\n", *pin, 375121992Sjhb intr); 376121992Sjhb return (0); 377121992Sjhb} 378121992Sjhb 379121992Sjhb/* 380121992Sjhb * Parse an interrupt source override for an ISA interrupt. 381121992Sjhb */ 382121992Sjhbstatic void 383167814Sjkimmadt_parse_interrupt_override(ACPI_MADT_INTERRUPT_OVERRIDE *intr) 384121992Sjhb{ 385122149Sjhb void *new_ioapic, *old_ioapic; 386122149Sjhb u_int new_pin, old_pin; 387128930Sjhb enum intr_trigger trig; 388128930Sjhb enum intr_polarity pol; 389128930Sjhb char buf[64]; 390121992Sjhb 391167814Sjkim if (acpi_quirks & ACPI_Q_MADT_IRQ0 && intr->SourceIrq == 0 && 392167814Sjkim intr->GlobalIrq == 2) { 393142257Sjhb if (bootverbose) 394142257Sjhb printf("MADT: Skipping timer override\n"); 395142257Sjhb return; 396142257Sjhb } 397121992Sjhb if (bootverbose) 398142257Sjhb printf("MADT: Interrupt override: source %u, irq %u\n", 399167814Sjkim intr->SourceIrq, intr->GlobalIrq); 400121992Sjhb KASSERT(intr->Bus == 0, ("bus for interrupt overrides must be zero")); 401167814Sjkim if (madt_find_interrupt(intr->GlobalIrq, &new_ioapic, &new_pin) != 0) { 402167814Sjkim printf("MADT: Could not find APIC for vector %u (IRQ %u)\n", 403167814Sjkim intr->GlobalIrq, intr->SourceIrq); 404121992Sjhb return; 405121992Sjhb } 406121992Sjhb 407125048Sjhb /* 408128930Sjhb * Lookup the appropriate trigger and polarity modes for this 409128930Sjhb * entry. 410128930Sjhb */ 411167814Sjkim trig = interrupt_trigger(intr->IntiFlags, intr->SourceIrq); 412167814Sjkim pol = interrupt_polarity(intr->IntiFlags, intr->SourceIrq); 413128930Sjhb 414128930Sjhb /* 415125048Sjhb * If the SCI is identity mapped but has edge trigger and 416128329Sjhb * active-hi polarity or the force_sci_lo tunable is set, 417128329Sjhb * force it to use level/lo. 418125048Sjhb */ 419167814Sjkim if (intr->SourceIrq == AcpiGbl_FADT.SciInterrupt) { 420128930Sjhb madt_found_sci_override = 1; 421128930Sjhb if (getenv_string("hw.acpi.sci.trigger", buf, sizeof(buf))) { 422128930Sjhb if (tolower(buf[0]) == 'e') 423128930Sjhb trig = INTR_TRIGGER_EDGE; 424128930Sjhb else if (tolower(buf[0]) == 'l') 425128930Sjhb trig = INTR_TRIGGER_LEVEL; 426128930Sjhb else 427128930Sjhb panic( 428128930Sjhb "Invalid trigger %s: must be 'edge' or 'level'", 429128930Sjhb buf); 430128930Sjhb printf("MADT: Forcing SCI to %s trigger\n", 431128930Sjhb trig == INTR_TRIGGER_EDGE ? "edge" : "level"); 432128930Sjhb } 433128930Sjhb if (getenv_string("hw.acpi.sci.polarity", buf, sizeof(buf))) { 434128930Sjhb if (tolower(buf[0]) == 'h') 435128930Sjhb pol = INTR_POLARITY_HIGH; 436128930Sjhb else if (tolower(buf[0]) == 'l') 437128930Sjhb pol = INTR_POLARITY_LOW; 438128930Sjhb else 439128930Sjhb panic( 440128930Sjhb "Invalid polarity %s: must be 'high' or 'low'", 441128930Sjhb buf); 442128930Sjhb printf("MADT: Forcing SCI to active %s polarity\n", 443128930Sjhb pol == INTR_POLARITY_HIGH ? "high" : "low"); 444128930Sjhb } 445128930Sjhb } 446125048Sjhb 447128930Sjhb /* Remap the IRQ if it is mapped to a different interrupt vector. */ 448167814Sjkim if (intr->SourceIrq != intr->GlobalIrq) { 449125048Sjhb /* 450125048Sjhb * If the SCI is remapped to a non-ISA global interrupt, 451125048Sjhb * then override the vector we use to setup and allocate 452125048Sjhb * the interrupt. 453125048Sjhb */ 454167814Sjkim if (intr->GlobalIrq > 15 && 455167814Sjkim intr->SourceIrq == AcpiGbl_FADT.SciInterrupt) 456167814Sjkim acpi_OverrideInterruptLevel(intr->GlobalIrq); 457122502Sjhb else 458167814Sjkim ioapic_remap_vector(new_ioapic, new_pin, 459167814Sjkim intr->SourceIrq); 460167814Sjkim if (madt_find_interrupt(intr->SourceIrq, &old_ioapic, 461122149Sjhb &old_pin) != 0) 462167814Sjkim printf("MADT: Could not find APIC for source IRQ %u\n", 463167814Sjkim intr->SourceIrq); 464122172Sjhb else if (ioapic_get_vector(old_ioapic, old_pin) == 465167814Sjkim intr->SourceIrq) 466122149Sjhb ioapic_disable_pin(old_ioapic, old_pin); 467122149Sjhb } 468128930Sjhb 469128930Sjhb /* Program the polarity and trigger mode. */ 470128930Sjhb ioapic_set_triggermode(new_ioapic, new_pin, trig); 471128930Sjhb ioapic_set_polarity(new_ioapic, new_pin, pol); 472121992Sjhb} 473121992Sjhb 474121992Sjhb/* 475121992Sjhb * Parse an entry for an NMI routed to an IO APIC. 476121992Sjhb */ 477121992Sjhbstatic void 478167814Sjkimmadt_parse_nmi(ACPI_MADT_NMI_SOURCE *nmi) 479121992Sjhb{ 480121992Sjhb void *ioapic; 481121992Sjhb u_int pin; 482121992Sjhb 483167814Sjkim if (madt_find_interrupt(nmi->GlobalIrq, &ioapic, &pin) != 0) { 484167814Sjkim printf("MADT: Could not find APIC for vector %u\n", 485167814Sjkim nmi->GlobalIrq); 486121992Sjhb return; 487121992Sjhb } 488121992Sjhb 489121992Sjhb ioapic_set_nmi(ioapic, pin); 490167814Sjkim if (!(nmi->IntiFlags & ACPI_MADT_TRIGGER_CONFORMS)) 491121992Sjhb ioapic_set_triggermode(ioapic, pin, 492167814Sjkim interrupt_trigger(nmi->IntiFlags, 0)); 493167814Sjkim if (!(nmi->IntiFlags & ACPI_MADT_TRIGGER_CONFORMS)) 494121992Sjhb ioapic_set_polarity(ioapic, pin, 495167814Sjkim interrupt_polarity(nmi->IntiFlags, 0)); 496121992Sjhb} 497121992Sjhb 498121992Sjhb/* 499121992Sjhb * Parse an entry for an NMI routed to a local APIC LVT pin. 500121992Sjhb */ 501121992Sjhbstatic void 502167814Sjkimmadt_parse_local_nmi(ACPI_MADT_LOCAL_APIC_NMI *nmi) 503121992Sjhb{ 504121992Sjhb u_int apic_id, pin; 505121992Sjhb 506123326Snjl if (nmi->ProcessorId == 0xff) 507121992Sjhb apic_id = APIC_ID_ALL; 508123326Snjl else if (madt_find_cpu(nmi->ProcessorId, &apic_id) != 0) { 509121992Sjhb if (bootverbose) 510167814Sjkim printf("MADT: Ignoring local NMI routed to " 511167814Sjkim "ACPI CPU %u\n", nmi->ProcessorId); 512121992Sjhb return; 513121992Sjhb } 514123326Snjl if (nmi->Lint == 0) 515121992Sjhb pin = LVT_LINT0; 516121992Sjhb else 517121992Sjhb pin = LVT_LINT1; 518121992Sjhb lapic_set_lvt_mode(apic_id, pin, APIC_LVT_DM_NMI); 519167814Sjkim if (!(nmi->IntiFlags & ACPI_MADT_TRIGGER_CONFORMS)) 520121992Sjhb lapic_set_lvt_triggermode(apic_id, pin, 521167814Sjkim interrupt_trigger(nmi->IntiFlags, 0)); 522167814Sjkim if (!(nmi->IntiFlags & ACPI_MADT_POLARITY_CONFORMS)) 523121992Sjhb lapic_set_lvt_polarity(apic_id, pin, 524167814Sjkim interrupt_polarity(nmi->IntiFlags, 0)); 525121992Sjhb} 526121992Sjhb 527121992Sjhb/* 528121992Sjhb * Parse interrupt entries. 529121992Sjhb */ 530121992Sjhbstatic void 531167814Sjkimmadt_parse_ints(ACPI_SUBTABLE_HEADER *entry, void *arg __unused) 532121992Sjhb{ 533121992Sjhb 534121992Sjhb switch (entry->Type) { 535167814Sjkim case ACPI_MADT_TYPE_INTERRUPT_OVERRIDE: 536121992Sjhb madt_parse_interrupt_override( 537167814Sjkim (ACPI_MADT_INTERRUPT_OVERRIDE *)entry); 538121992Sjhb break; 539167814Sjkim case ACPI_MADT_TYPE_NMI_SOURCE: 540167814Sjkim madt_parse_nmi((ACPI_MADT_NMI_SOURCE *)entry); 541121992Sjhb break; 542167814Sjkim case ACPI_MADT_TYPE_LOCAL_APIC_NMI: 543167814Sjkim madt_parse_local_nmi((ACPI_MADT_LOCAL_APIC_NMI *)entry); 544121992Sjhb break; 545121992Sjhb } 546121992Sjhb} 547121992Sjhb 548121992Sjhb/* 549121992Sjhb * Setup per-CPU ACPI IDs. 550121992Sjhb */ 551121992Sjhbstatic void 552121992Sjhbmadt_set_ids(void *dummy) 553121992Sjhb{ 554129960Sjhb struct lapic_info *la; 555121992Sjhb struct pcpu *pc; 556129960Sjhb u_int i; 557121992Sjhb 558121992Sjhb if (madt == NULL) 559121992Sjhb return; 560123133Sjhb for (i = 0; i <= mp_maxid; i++) { 561121992Sjhb if (CPU_ABSENT(i)) 562121992Sjhb continue; 563121992Sjhb pc = pcpu_find(i); 564167814Sjkim KASSERT(pc != NULL, ("no pcpu data for CPU %u", i)); 565129960Sjhb la = &lapics[pc->pc_apic_id]; 566130310Sjhb if (!la->la_enabled) 567129960Sjhb panic("APIC: CPU with APIC ID %u is not enabled", 568129960Sjhb pc->pc_apic_id); 569129960Sjhb pc->pc_acpi_id = la->la_acpi_id; 570129960Sjhb if (bootverbose) 571129960Sjhb printf("APIC: CPU %u has ACPI ID %u\n", i, 572129960Sjhb la->la_acpi_id); 573121992Sjhb } 574121992Sjhb} 575177253SrwatsonSYSINIT(madt_set_ids, SI_SUB_CPU, SI_ORDER_ANY, madt_set_ids, NULL); 576