52#include <contrib/dev/acpica/actables.h>
53#include <dev/acpica/acpivar.h>
54#include <dev/pci/pcivar.h>
55
56#define NIOAPICS 32 /* Max number of I/O APICs */
57#define NLAPICS 32 /* Max number of local APICs */
58
59typedef void madt_entry_handler(APIC_HEADER *entry, void *arg);
60
61/* These two arrays are indexed by APIC IDs. */
62struct ioapic_info {
63 void *io_apic;
64 UINT32 io_vector;
65} ioapics[NIOAPICS];
66
67struct lapic_info {
68 u_int la_enabled:1;
69 u_int la_acpi_id:8;
70} lapics[NLAPICS];
71
72static int madt_found_sci_override;
73static MULTIPLE_APIC_TABLE *madt;
74static vm_paddr_t madt_physaddr;
75static vm_offset_t madt_length;
76
77MALLOC_DEFINE(M_MADT, "MADT Table", "ACPI MADT Table Items");
78
79static enum intr_polarity interrupt_polarity(UINT16 Polarity, UINT8 Source);
80static enum intr_trigger interrupt_trigger(UINT16 TriggerMode, UINT8 Source);
81static int madt_find_cpu(u_int acpi_id, u_int *apic_id);
82static int madt_find_interrupt(int intr, void **apic, u_int *pin);
83static void *madt_map(vm_paddr_t pa, int offset, vm_offset_t length);
84static void *madt_map_table(vm_paddr_t pa, int offset, const char *sig);
85static void madt_parse_apics(APIC_HEADER *entry, void *arg);
86static void madt_parse_interrupt_override(MADT_INTERRUPT_OVERRIDE *intr);
87static void madt_parse_ints(APIC_HEADER *entry, void *arg __unused);
88static void madt_parse_local_nmi(MADT_LOCAL_APIC_NMI *nmi);
89static void madt_parse_nmi(MADT_NMI_SOURCE *nmi);
90static int madt_probe(void);
91static int madt_probe_cpus(void);
92static void madt_probe_cpus_handler(APIC_HEADER *entry, void *arg __unused);
93static int madt_probe_table(vm_paddr_t address);
94static void madt_register(void *dummy);
95static int madt_setup_local(void);
96static int madt_setup_io(void);
97static void madt_unmap(void *data, vm_offset_t length);
98static void madt_unmap_table(void *table);
99static void madt_walk_table(madt_entry_handler *handler, void *arg);
100
101static struct apic_enumerator madt_enumerator = {
102 "MADT",
103 madt_probe,
104 madt_probe_cpus,
105 madt_setup_local,
106 madt_setup_io
107};
108
109/*
110 * Code to abuse the crashdump map to map in the tables for the early
111 * probe. We cheat and make the following assumptions about how we
112 * use this KVA: page 0 is used to map in the first page of each table
113 * found via the RSDT or XSDT and pages 1 to n are used to map in the
114 * RSDT or XSDT. The offset is in pages; the length is in bytes.
115 */
116static void *
117madt_map(vm_paddr_t pa, int offset, vm_offset_t length)
118{
119 vm_offset_t va, off;
120 void *data;
121
122 off = pa & PAGE_MASK;
123 length = roundup(length + off, PAGE_SIZE);
124 pa = pa & PG_FRAME;
125 va = (vm_offset_t)pmap_kenter_temporary(pa, offset) +
126 (offset * PAGE_SIZE);
127 data = (void *)(va + off);
128 length -= PAGE_SIZE;
129 while (length > 0) {
130 va += PAGE_SIZE;
131 pa += PAGE_SIZE;
132 length -= PAGE_SIZE;
133 pmap_kenter(va, pa);
134 invlpg(va);
135 }
136 return (data);
137}
138
139static void
140madt_unmap(void *data, vm_offset_t length)
141{
142 vm_offset_t va, off;
143
144 va = (vm_offset_t)data;
145 off = va & PAGE_MASK;
146 length = roundup(length + off, PAGE_SIZE);
147 va &= ~PAGE_MASK;
148 while (length > 0) {
149 pmap_kremove(va);
150 invlpg(va);
151 va += PAGE_SIZE;
152 length -= PAGE_SIZE;
153 }
154}
155
156static void *
157madt_map_table(vm_paddr_t pa, int offset, const char *sig)
158{
159 ACPI_TABLE_HEADER *header;
160 vm_offset_t length;
161 void *table;
162
163 header = madt_map(pa, offset, sizeof(ACPI_TABLE_HEADER));
164 if (strncmp(header->Signature, sig, 4) != 0) {
165 madt_unmap(header, sizeof(ACPI_TABLE_HEADER));
166 return (NULL);
167 }
168 length = header->Length;
169 madt_unmap(header, sizeof(ACPI_TABLE_HEADER));
170 table = madt_map(pa, offset, length);
171 if (ACPI_FAILURE(AcpiTbVerifyTableChecksum(table))) {
172 if (bootverbose)
173 printf("MADT: Failed checksum for table %s\n", sig);
174 madt_unmap(table, length);
175 return (NULL);
176 }
177 return (table);
178}
179
180static void
181madt_unmap_table(void *table)
182{
183 ACPI_TABLE_HEADER *header;
184
185 header = (ACPI_TABLE_HEADER *)table;
186 madt_unmap(table, header->Length);
187}
188
189/*
190 * Look for an ACPI Multiple APIC Description Table ("APIC")
191 */
192static int
193madt_probe(void)
194{
195 ACPI_POINTER rsdp_ptr;
196 RSDP_DESCRIPTOR *rsdp;
197 RSDT_DESCRIPTOR *rsdt;
198 XSDT_DESCRIPTOR *xsdt;
199 int i, count;
200
201 if (resource_disabled("acpi", 0))
202 return (ENXIO);
203
204 /*
205 * Map in the RSDP. Since ACPI uses AcpiOsMapMemory() which in turn
206 * calls pmap_mapdev() to find the RSDP, we assume that we can use
207 * pmap_mapdev() to map the RSDP.
208 */
209 if (AcpiOsGetRootPointer(ACPI_LOGICAL_ADDRESSING, &rsdp_ptr) != AE_OK)
210 return (ENXIO);
211#ifdef __i386__
212 KASSERT(rsdp_ptr.Pointer.Physical < KERNLOAD, ("RSDP too high"));
213#endif
214 rsdp = pmap_mapdev(rsdp_ptr.Pointer.Physical, sizeof(RSDP_DESCRIPTOR));
215 if (rsdp == NULL) {
216 if (bootverbose)
217 printf("MADT: Failed to map RSDP\n");
218 return (ENXIO);
219 }
220
221 /*
222 * For ACPI < 2.0, use the RSDT. For ACPI >= 2.0, use the XSDT.
223 * We map the XSDT and RSDT at page 1 in the crashdump area.
224 * Page 0 is used to map in the headers of candidate ACPI tables.
225 */
226 if (rsdp->Revision >= 2) {
227 /*
228 * AcpiOsGetRootPointer only verifies the checksum for
229 * the version 1.0 portion of the RSDP. Version 2.0 has
230 * an additional checksum that we verify first.
231 */
232 if (AcpiTbChecksum(rsdp, ACPI_RSDP_XCHECKSUM_LENGTH) != 0) {
233 if (bootverbose)
234 printf("MADT: RSDP failed extended checksum\n");
235 return (ENXIO);
236 }
237 xsdt = madt_map_table(rsdp->XsdtPhysicalAddress, 1, XSDT_SIG);
238 if (xsdt == NULL) {
239 if (bootverbose)
240 printf("MADT: Failed to map XSDT\n");
241 return (ENXIO);
242 }
243 count = (xsdt->Length - sizeof(ACPI_TABLE_HEADER)) /
244 sizeof(UINT64);
245 for (i = 0; i < count; i++)
246 if (madt_probe_table(xsdt->TableOffsetEntry[i]))
247 break;
248 madt_unmap_table(xsdt);
249 } else {
250 rsdt = madt_map_table(rsdp->RsdtPhysicalAddress, 1, RSDT_SIG);
251 if (rsdt == NULL) {
252 if (bootverbose)
253 printf("MADT: Failed to map RSDT\n");
254 return (ENXIO);
255 }
256 count = (rsdt->Length - sizeof(ACPI_TABLE_HEADER)) /
257 sizeof(UINT32);
258 for (i = 0; i < count; i++)
259 if (madt_probe_table(rsdt->TableOffsetEntry[i]))
260 break;
261 madt_unmap_table(rsdt);
262 }
263 pmap_unmapdev((vm_offset_t)rsdp, sizeof(RSDP_DESCRIPTOR));
264 if (madt_physaddr == 0) {
265 if (bootverbose)
266 printf("MADT: No MADT table found\n");
267 return (ENXIO);
268 }
269 if (bootverbose)
270 printf("MADT: Found table at 0x%jx\n",
271 (uintmax_t)madt_physaddr);
272
273 /*
274 * Verify that we can map the full table and that its checksum is
275 * correct, etc.
276 */
277 madt = madt_map_table(madt_physaddr, 0, APIC_SIG);
278 if (madt == NULL)
279 return (ENXIO);
280 madt_unmap_table(madt);
281 madt = NULL;
282
283 return (0);
284}
285
286/*
287 * See if a given ACPI table is the MADT.
288 */
289static int
290madt_probe_table(vm_paddr_t address)
291{
292 ACPI_TABLE_HEADER *table;
293
294 table = madt_map(address, 0, sizeof(ACPI_TABLE_HEADER));
295 if (table == NULL) {
296 if (bootverbose)
297 printf("MADT: Failed to map table at 0x%jx\n",
298 (uintmax_t)address);
299 return (0);
300 }
301 if (bootverbose)
302 printf("Table '%.4s' at 0x%jx\n", table->Signature,
303 (uintmax_t)address);
304
305 if (strncmp(table->Signature, APIC_SIG, 4) != 0) {
306 madt_unmap(table, sizeof(ACPI_TABLE_HEADER));
307 return (0);
308 }
309 madt_physaddr = address;
310 madt_length = table->Length;
311 madt_unmap(table, sizeof(ACPI_TABLE_HEADER));
312 return (1);
313}
314
315/*
316 * Run through the MP table enumerating CPUs.
317 */
318static int
319madt_probe_cpus(void)
320{
321
322 madt = madt_map_table(madt_physaddr, 0, APIC_SIG);
323 KASSERT(madt != NULL, ("Unable to re-map MADT"));
324 madt_walk_table(madt_probe_cpus_handler, NULL);
325 madt_unmap_table(madt);
326 madt = NULL;
327 return (0);
328}
329
330/*
331 * Initialize the local APIC on the BSP.
332 */
333static int
334madt_setup_local(void)
335{
336
337 madt = pmap_mapdev(madt_physaddr, madt_length);
338 lapic_init((uintptr_t)madt->LocalApicAddress);
339 printf("ACPI APIC Table: <%.*s %.*s>\n",
340 (int)sizeof(madt->OemId), madt->OemId,
341 (int)sizeof(madt->OemTableId), madt->OemTableId);
342
343 /*
344 * We ignore 64-bit local APIC override entries. Should we
345 * perhaps emit a warning here if we find one?
346 */
347 return (0);
348}
349
350/*
351 * Enumerate I/O APICs and setup interrupt sources.
352 */
353static int
354madt_setup_io(void)
355{
356 void *ioapic;
357 u_int pin;
358 int i;
359
360 /* Try to initialize ACPI so that we can access the FADT. */
361 i = acpi_Startup();
362 if (ACPI_FAILURE(i)) {
363 printf("MADT: ACPI Startup failed with %s\n",
364 AcpiFormatException(i));
365 printf("Try disabling either ACPI or apic support.\n");
366 panic("Using MADT but ACPI doesn't work");
367 }
368
369 /* First, we run through adding I/O APIC's. */
370 madt_walk_table(madt_parse_apics, NULL);
371
372 /* Second, we run through the table tweaking interrupt sources. */
373 madt_walk_table(madt_parse_ints, NULL);
374
375 /*
376 * If there was not an explicit override entry for the SCI,
377 * force it to use level trigger and active-low polarity.
378 */
379 if (!madt_found_sci_override) {
380 if (madt_find_interrupt(AcpiGbl_FADT->SciInt, &ioapic, &pin)
381 != 0)
382 printf("MADT: Could not find APIC for SCI IRQ %d\n",
383 AcpiGbl_FADT->SciInt);
384 else {
385 printf(
386 "MADT: Forcing active-low polarity and level trigger for SCI\n");
387 ioapic_set_polarity(ioapic, pin, INTR_POLARITY_LOW);
388 ioapic_set_triggermode(ioapic, pin, INTR_TRIGGER_LEVEL);
389 }
390 }
391
392 /* Third, we register all the I/O APIC's. */
393 for (i = 0; i < NIOAPICS; i++)
394 if (ioapics[i].io_apic != NULL)
395 ioapic_register(ioapics[i].io_apic);
396
397 /* Finally, we throw the switch to enable the I/O APIC's. */
398 acpi_SetDefaultIntrModel(ACPI_INTR_APIC);
399
400 return (0);
401}
402
403static void
404madt_register(void *dummy __unused)
405{
406
407 apic_register_enumerator(&madt_enumerator);
408}
409SYSINIT(madt_register, SI_SUB_CPU - 1, SI_ORDER_FIRST, madt_register, NULL)
410
411/*
412 * Call the handler routine for each entry in the MADT table.
413 */
414static void
415madt_walk_table(madt_entry_handler *handler, void *arg)
416{
417 APIC_HEADER *entry;
418 u_char *p, *end;
419
420 end = (u_char *)(madt) + madt->Length;
421 for (p = (u_char *)(madt + 1); p < end; ) {
422 entry = (APIC_HEADER *)p;
423 handler(entry, arg);
424 p += entry->Length;
425 }
426}
427
428static void
429madt_probe_cpus_handler(APIC_HEADER *entry, void *arg)
430{
431 MADT_PROCESSOR_APIC *proc;
432 struct lapic_info *la;
433
434 switch (entry->Type) {
435 case APIC_PROCESSOR:
436 /*
437 * The MADT does not include a BSP flag, so we have to
438 * let the MP code figure out which CPU is the BSP on
439 * its own.
440 */
441 proc = (MADT_PROCESSOR_APIC *)entry;
442 if (bootverbose)
443 printf("MADT: Found CPU APIC ID %d ACPI ID %d: %s\n",
444 proc->LocalApicId, proc->ProcessorId,
445 proc->ProcessorEnabled ? "enabled" : "disabled");
446 if (!proc->ProcessorEnabled)
447 break;
448 if (proc->LocalApicId >= NLAPICS)
449 panic("%s: CPU ID %d too high", __func__,
450 proc->LocalApicId);
451 la = &lapics[proc->LocalApicId];
452 KASSERT(la->la_enabled == 0,
453 ("Duplicate local APIC ID %d", proc->LocalApicId));
454 la->la_enabled = 1;
455 la->la_acpi_id = proc->ProcessorId;
456 lapic_create(proc->LocalApicId, 0);
457 break;
458 }
459}
460
461
462/*
463 * Add an I/O APIC from an entry in the table.
464 */
465static void
466madt_parse_apics(APIC_HEADER *entry, void *arg __unused)
467{
468 MADT_IO_APIC *apic;
469
470 switch (entry->Type) {
471 case APIC_IO:
472 apic = (MADT_IO_APIC *)entry;
473 if (bootverbose)
474 printf("MADT: Found IO APIC ID %d, Interrupt %d at %p\n",
475 apic->IoApicId, apic->Interrupt,
476 (void *)(uintptr_t)apic->Address);
477 if (apic->IoApicId >= NIOAPICS)
478 panic("%s: I/O APIC ID %d too high", __func__,
479 apic->IoApicId);
480 if (ioapics[apic->IoApicId].io_apic != NULL)
481 panic("%s: Double APIC ID %d", __func__,
482 apic->IoApicId);
483 ioapics[apic->IoApicId].io_apic = ioapic_create(
484 (uintptr_t)apic->Address, apic->IoApicId,
485 apic->Interrupt);
486 ioapics[apic->IoApicId].io_vector = apic->Interrupt;
487 break;
488 default:
489 break;
490 }
491}
492
493/*
494 * Determine properties of an interrupt source. Note that for ACPI these
495 * functions are only used for ISA interrupts, so we assume ISA bus values
496 * (Active Hi, Edge Triggered) for conforming values except for the ACPI
497 * SCI for which we use Active Lo, Level Triggered.
498 */
499static enum intr_polarity
500interrupt_polarity(UINT16 Polarity, UINT8 Source)
501{
502
503 switch (Polarity) {
504 case POLARITY_CONFORMS:
505 if (Source == AcpiGbl_FADT->SciInt)
506 return (INTR_POLARITY_LOW);
507 else
508 return (INTR_POLARITY_HIGH);
509 case POLARITY_ACTIVE_HIGH:
510 return (INTR_POLARITY_HIGH);
511 case POLARITY_ACTIVE_LOW:
512 return (INTR_POLARITY_LOW);
513 default:
514 panic("Bogus Interrupt Polarity");
515 }
516}
517
518static enum intr_trigger
519interrupt_trigger(UINT16 TriggerMode, UINT8 Source)
520{
521
522 switch (TriggerMode) {
523 case TRIGGER_CONFORMS:
524 if (Source == AcpiGbl_FADT->SciInt)
525 return (INTR_TRIGGER_LEVEL);
526 else
527 return (INTR_TRIGGER_EDGE);
528 case TRIGGER_EDGE:
529 return (INTR_TRIGGER_EDGE);
530 case TRIGGER_LEVEL:
531 return (INTR_TRIGGER_LEVEL);
532 default:
533 panic("Bogus Interrupt Trigger Mode");
534 }
535}
536
537/*
538 * Find the local APIC ID associated with a given ACPI Processor ID.
539 */
540static int
541madt_find_cpu(u_int acpi_id, u_int *apic_id)
542{
543 int i;
544
545 for (i = 0; i < NLAPICS; i++) {
546 if (!lapics[i].la_enabled)
547 continue;
548 if (lapics[i].la_acpi_id != acpi_id)
549 continue;
550 *apic_id = i;
551 return (0);
552 }
553 return (ENOENT);
554}
555
556/*
557 * Find the IO APIC and pin on that APIC associated with a given global
558 * interrupt.
559 */
560static int
561madt_find_interrupt(int intr, void **apic, u_int *pin)
562{
563 int i, best;
564
565 best = -1;
566 for (i = 0; i < NIOAPICS; i++) {
567 if (ioapics[i].io_apic == NULL ||
568 ioapics[i].io_vector > intr)
569 continue;
570 if (best == -1 ||
571 ioapics[best].io_vector < ioapics[i].io_vector)
572 best = i;
573 }
574 if (best == -1)
575 return (ENOENT);
576 *apic = ioapics[best].io_apic;
577 *pin = intr - ioapics[best].io_vector;
578 if (*pin > 32)
579 printf("WARNING: Found intpin of %u for vector %d\n", *pin,
580 intr);
581 return (0);
582}
583
584/*
585 * Parse an interrupt source override for an ISA interrupt.
586 */
587static void
588madt_parse_interrupt_override(MADT_INTERRUPT_OVERRIDE *intr)
589{
590 void *new_ioapic, *old_ioapic;
591 u_int new_pin, old_pin;
592 enum intr_trigger trig;
593 enum intr_polarity pol;
594 char buf[64];
595
596 if (acpi_quirks & ACPI_Q_MADT_IRQ0 && intr->Source == 0 &&
597 intr->Interrupt == 2) {
598 if (bootverbose)
599 printf("MADT: Skipping timer override\n");
600 return;
601 }
602 if (bootverbose)
603 printf("MADT: Interrupt override: source %u, irq %u\n",
604 intr->Source, intr->Interrupt);
605 KASSERT(intr->Bus == 0, ("bus for interrupt overrides must be zero"));
606 if (madt_find_interrupt(intr->Interrupt, &new_ioapic,
607 &new_pin) != 0) {
608 printf("MADT: Could not find APIC for vector %d (IRQ %d)\n",
609 intr->Interrupt, intr->Source);
610 return;
611 }
612
613 /*
614 * Lookup the appropriate trigger and polarity modes for this
615 * entry.
616 */
617 trig = interrupt_trigger(intr->TriggerMode, intr->Source);
618 pol = interrupt_polarity(intr->Polarity, intr->Source);
619
620 /*
621 * If the SCI is identity mapped but has edge trigger and
622 * active-hi polarity or the force_sci_lo tunable is set,
623 * force it to use level/lo.
624 */
625 if (intr->Source == AcpiGbl_FADT->SciInt) {
626 madt_found_sci_override = 1;
627 if (getenv_string("hw.acpi.sci.trigger", buf, sizeof(buf))) {
628 if (tolower(buf[0]) == 'e')
629 trig = INTR_TRIGGER_EDGE;
630 else if (tolower(buf[0]) == 'l')
631 trig = INTR_TRIGGER_LEVEL;
632 else
633 panic(
634 "Invalid trigger %s: must be 'edge' or 'level'",
635 buf);
636 printf("MADT: Forcing SCI to %s trigger\n",
637 trig == INTR_TRIGGER_EDGE ? "edge" : "level");
638 }
639 if (getenv_string("hw.acpi.sci.polarity", buf, sizeof(buf))) {
640 if (tolower(buf[0]) == 'h')
641 pol = INTR_POLARITY_HIGH;
642 else if (tolower(buf[0]) == 'l')
643 pol = INTR_POLARITY_LOW;
644 else
645 panic(
646 "Invalid polarity %s: must be 'high' or 'low'",
647 buf);
648 printf("MADT: Forcing SCI to active %s polarity\n",
649 pol == INTR_POLARITY_HIGH ? "high" : "low");
650 }
651 }
652
653 /* Remap the IRQ if it is mapped to a different interrupt vector. */
654 if (intr->Source != intr->Interrupt) {
655 /*
656 * If the SCI is remapped to a non-ISA global interrupt,
657 * then override the vector we use to setup and allocate
658 * the interrupt.
659 */
660 if (intr->Interrupt > 15 &&
661 intr->Source == AcpiGbl_FADT->SciInt)
662 acpi_OverrideInterruptLevel(intr->Interrupt);
663 else
664 ioapic_remap_vector(new_ioapic, new_pin, intr->Source);
665 if (madt_find_interrupt(intr->Source, &old_ioapic,
666 &old_pin) != 0)
667 printf("MADT: Could not find APIC for source IRQ %d\n",
668 intr->Source);
669 else if (ioapic_get_vector(old_ioapic, old_pin) ==
670 intr->Source)
671 ioapic_disable_pin(old_ioapic, old_pin);
672 }
673
674 /* Program the polarity and trigger mode. */
675 ioapic_set_triggermode(new_ioapic, new_pin, trig);
676 ioapic_set_polarity(new_ioapic, new_pin, pol);
677}
678
679/*
680 * Parse an entry for an NMI routed to an IO APIC.
681 */
682static void
683madt_parse_nmi(MADT_NMI_SOURCE *nmi)
684{
685 void *ioapic;
686 u_int pin;
687
688 if (madt_find_interrupt(nmi->Interrupt, &ioapic, &pin) != 0) {
689 printf("MADT: Could not find APIC for vector %d\n",
690 nmi->Interrupt);
691 return;
692 }
693
694 ioapic_set_nmi(ioapic, pin);
695 if (nmi->TriggerMode != TRIGGER_CONFORMS)
696 ioapic_set_triggermode(ioapic, pin,
697 interrupt_trigger(nmi->TriggerMode, 0));
698 if (nmi->Polarity != TRIGGER_CONFORMS)
699 ioapic_set_polarity(ioapic, pin,
700 interrupt_polarity(nmi->Polarity, 0));
701}
702
703/*
704 * Parse an entry for an NMI routed to a local APIC LVT pin.
705 */
706static void
707madt_parse_local_nmi(MADT_LOCAL_APIC_NMI *nmi)
708{
709 u_int apic_id, pin;
710
711 if (nmi->ProcessorId == 0xff)
712 apic_id = APIC_ID_ALL;
713 else if (madt_find_cpu(nmi->ProcessorId, &apic_id) != 0) {
714 if (bootverbose)
715 printf("MADT: Ignoring local NMI routed to ACPI CPU %u\n",
716 nmi->ProcessorId);
717 return;
718 }
719 if (nmi->Lint == 0)
720 pin = LVT_LINT0;
721 else
722 pin = LVT_LINT1;
723 lapic_set_lvt_mode(apic_id, pin, APIC_LVT_DM_NMI);
724 if (nmi->TriggerMode != TRIGGER_CONFORMS)
725 lapic_set_lvt_triggermode(apic_id, pin,
726 interrupt_trigger(nmi->TriggerMode, 0));
727 if (nmi->Polarity != POLARITY_CONFORMS)
728 lapic_set_lvt_polarity(apic_id, pin,
729 interrupt_polarity(nmi->Polarity, 0));
730}
731
732/*
733 * Parse interrupt entries.
734 */
735static void
736madt_parse_ints(APIC_HEADER *entry, void *arg __unused)
737{
738
739 switch (entry->Type) {
740 case APIC_XRUPT_OVERRIDE:
741 madt_parse_interrupt_override(
742 (MADT_INTERRUPT_OVERRIDE *)entry);
743 break;
744 case APIC_NMI:
745 madt_parse_nmi((MADT_NMI_SOURCE *)entry);
746 break;
747 case APIC_LOCAL_NMI:
748 madt_parse_local_nmi((MADT_LOCAL_APIC_NMI *)entry);
749 break;
750 }
751}
752
753/*
754 * Setup per-CPU ACPI IDs.
755 */
756static void
757madt_set_ids(void *dummy)
758{
759 struct lapic_info *la;
760 struct pcpu *pc;
761 u_int i;
762
763 if (madt == NULL)
764 return;
765 for (i = 0; i <= mp_maxid; i++) {
766 if (CPU_ABSENT(i))
767 continue;
768 pc = pcpu_find(i);
769 KASSERT(pc != NULL, ("no pcpu data for CPU %d", i));
770 la = &lapics[pc->pc_apic_id];
771 if (!la->la_enabled)
772 panic("APIC: CPU with APIC ID %u is not enabled",
773 pc->pc_apic_id);
774 pc->pc_acpi_id = la->la_acpi_id;
775 if (bootverbose)
776 printf("APIC: CPU %u has ACPI ID %u\n", i,
777 la->la_acpi_id);
778 }
779}
780SYSINIT(madt_set_ids, SI_SUB_CPU, SI_ORDER_ANY, madt_set_ids, NULL)
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