Merge from vendor branch GROFF:
[dragonfly.git] / sys / i386 / acpica5 / madt.c
CommitLineData
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1/*-
2 * Copyright (c) 2003 John Baldwin <jhb@FreeBSD.org>
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 * 3. Neither the name of the author nor the names of any co-contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
49e48b8a 29 * $FreeBSD: src/sys/i386/acpica/madt.c,v 1.17 2004/06/10 20:03:46 jhb Exp $
9708332e 30 * $DragonFly: src/sys/i386/acpica5/Attic/madt.c,v 1.4 2005/06/27 22:32:00 dillon Exp $
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31 */
32
33#include <sys/param.h>
34#include <sys/systm.h>
35#include <sys/bus.h>
36#include <sys/kernel.h>
37#include <sys/malloc.h>
38#include <sys/globaldata.h>
39
40#include <vm/vm.h>
41#include <vm/vm_param.h>
42#include <vm/pmap.h>
43
44#include <machine/apicreg.h>
45#include <machine/frame.h>
46/*#include <machine/intr_machdep.h>*/
47#include <machine/md_var.h>
48#include <machine/apicvar.h>
49#include <machine/specialreg.h>
50#include <machine/smp.h>
51#include <machine/globaldata.h>
52
53#include "acpi.h"
f9d8cd12 54#include "actables.h"
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55#include "acpivar.h"
56#include <bus/pci/pcivar.h>
57
58#define NIOAPICS 32 /* Max number of I/O APICs */
59#define NLAPICS 32 /* Max number of local APICs */
60
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61typedef void madt_entry_handler(APIC_HEADER *entry, void *arg);
62
63/* These two arrays are indexed by APIC IDs. */
64struct ioapic_info {
65 void *io_apic;
66 UINT32 io_vector;
67} ioapics[NIOAPICS];
68
69struct lapic_info {
5ed44076 70 u_int la_enabled:1;
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71 u_int la_acpi_id:8;
72} lapics[NLAPICS];
5ed44076 73
f9d8cd12 74static int madt_found_sci_override;
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75static MULTIPLE_APIC_TABLE *madt;
76static vm_paddr_t madt_physaddr;
77static vm_offset_t madt_length;
78
79MALLOC_DEFINE(M_MADT, "MADT Table", "ACPI MADT Table Items");
80
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81static enum intr_polarity interrupt_polarity(UINT16 Polarity, UINT8 Source);
82static enum intr_trigger interrupt_trigger(UINT16 TriggerMode, UINT8 Source);
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83static int madt_find_cpu(u_int acpi_id, u_int *apic_id);
84static int madt_find_interrupt(int intr, void **apic, u_int *pin);
85static void *madt_map(vm_paddr_t pa, int offset, vm_offset_t length);
86static void *madt_map_table(vm_paddr_t pa, int offset, const char *sig);
87static void madt_parse_apics(APIC_HEADER *entry, void *arg);
88static void madt_parse_interrupt_override(MADT_INTERRUPT_OVERRIDE *intr);
89static void madt_parse_ints(APIC_HEADER *entry, void *arg __unused);
90static void madt_parse_local_nmi(MADT_LOCAL_APIC_NMI *nmi);
91static void madt_parse_nmi(MADT_NMI_SOURCE *nmi);
92static int madt_probe(void);
93static int madt_probe_cpus(void);
94static void madt_probe_cpus_handler(APIC_HEADER *entry, void *arg __unused);
95static int madt_probe_table(vm_paddr_t address);
96static void madt_register(void *dummy);
97static int madt_setup_local(void);
98static int madt_setup_io(void);
99static void madt_unmap(void *data, vm_offset_t length);
100static void madt_unmap_table(void *table);
101static void madt_walk_table(madt_entry_handler *handler, void *arg);
102
103static struct apic_enumerator madt_enumerator = {
104 "MADT",
105 madt_probe,
106 madt_probe_cpus,
107 madt_setup_local,
108 madt_setup_io
109};
110
111/*
112 * Code to abuse the crashdump map to map in the tables for the early
113 * probe. We cheat and make the following assumptions about how we
114 * use this KVA: page 0 is used to map in the first page of each table
115 * found via the RSDT or XSDT and pages 1 to n are used to map in the
116 * RSDT or XSDT. The offset is in pages; the length is in bytes.
117 */
118static void *
119madt_map(vm_paddr_t pa, int offset, vm_offset_t length)
120{
121 vm_offset_t va, off;
122 void *data;
123
124 off = pa & PAGE_MASK;
125 length = roundup(length + off, PAGE_SIZE);
126 pa = pa & PG_FRAME;
127 va = (vm_offset_t)pmap_kenter_temporary(pa, offset) +
128 (offset * PAGE_SIZE);
129 data = (void *)(va + off);
130 length -= PAGE_SIZE;
131 while (length > 0) {
132 va += PAGE_SIZE;
133 pa += PAGE_SIZE;
134 length -= PAGE_SIZE;
135 pmap_kenter(va, pa);
136 cpu_invlpg((void *)va);
137 }
138 return (data);
139}
140
141static void
142madt_unmap(void *data, vm_offset_t length)
143{
144 vm_offset_t va, off;
145
146 va = (vm_offset_t)data;
147 off = va & PAGE_MASK;
148 length = roundup(length + off, PAGE_SIZE);
149 va &= ~PAGE_MASK;
150 while (length > 0) {
151 pmap_kremove(va);
152 cpu_invlpg((void *)va);
153 va += PAGE_SIZE;
154 length -= PAGE_SIZE;
155 }
156}
157
158static void *
159madt_map_table(vm_paddr_t pa, int offset, const char *sig)
160{
161 ACPI_TABLE_HEADER *header;
162 vm_offset_t length;
f9d8cd12 163 void *table;
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164
165 header = madt_map(pa, offset, sizeof(ACPI_TABLE_HEADER));
166 if (strncmp(header->Signature, sig, 4) != 0) {
167 madt_unmap(header, sizeof(ACPI_TABLE_HEADER));
168 return (NULL);
169 }
170 length = header->Length;
171 madt_unmap(header, sizeof(ACPI_TABLE_HEADER));
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172 table = madt_map(pa, offset, length);
173 if (ACPI_FAILURE(AcpiTbVerifyTableChecksum(table))) {
174 if (bootverbose)
175 printf("MADT: Failed checksum for table %s\n", sig);
176 madt_unmap(table, length);
177 return (NULL);
178 }
179 return (table);
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180}
181
182static void
183madt_unmap_table(void *table)
184{
185 ACPI_TABLE_HEADER *header;
186
187 header = (ACPI_TABLE_HEADER *)table;
188 madt_unmap(table, header->Length);
189}
190
191/*
192 * Look for an ACPI Multiple APIC Description Table ("APIC")
193 */
194static int
195madt_probe(void)
196{
197 ACPI_POINTER rsdp_ptr;
198 RSDP_DESCRIPTOR *rsdp;
199 RSDT_DESCRIPTOR *rsdt;
200 XSDT_DESCRIPTOR *xsdt;
201 int i, count;
202
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203 if (resource_disabled("acpi", 0))
204 return (ENXIO);
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205
206 /*
207 * Map in the RSDP. Since ACPI uses AcpiOsMapMemory() which in turn
208 * calls pmap_mapdev() to find the RSDP, we assume that we can use
209 * pmap_mapdev() to map the RSDP.
210 */
211 if (AcpiOsGetRootPointer(ACPI_LOGICAL_ADDRESSING, &rsdp_ptr) != AE_OK)
212 return (ENXIO);
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213 rsdp = pmap_mapdev(rsdp_ptr.Pointer.Physical, sizeof(RSDP_DESCRIPTOR));
214 if (rsdp == NULL) {
215 if (bootverbose)
216 printf("MADT: Failed to map RSDP\n");
217 return (ENXIO);
218 }
219
220 /*
221 * For ACPI < 2.0, use the RSDT. For ACPI >= 2.0, use the XSDT.
222 * We map the XSDT and RSDT at page 1 in the crashdump area.
223 * Page 0 is used to map in the headers of candidate ACPI tables.
224 */
225 if (rsdp->Revision >= 2) {
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226 /*
227 * AcpiOsGetRootPointer only verifies the checksum for
228 * the version 1.0 portion of the RSDP. Version 2.0 has
229 * an additional checksum that we verify first.
230 */
231 if (AcpiTbChecksum(rsdp, ACPI_RSDP_XCHECKSUM_LENGTH) != 0) {
232 if (bootverbose)
233 printf("MADT: RSDP failed extended checksum\n");
234 return (ENXIO);
235 }
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236 xsdt = madt_map_table(rsdp->XsdtPhysicalAddress, 1, XSDT_SIG);
237 if (xsdt == NULL) {
238 if (bootverbose)
239 printf("MADT: Failed to map XSDT\n");
240 return (ENXIO);
241 }
242 count = (xsdt->Length - sizeof(ACPI_TABLE_HEADER)) /
243 sizeof(UINT64);
244 for (i = 0; i < count; i++)
245 if (madt_probe_table(xsdt->TableOffsetEntry[i]))
246 break;
247 madt_unmap_table(xsdt);
248 } else {
249 rsdt = madt_map_table(rsdp->RsdtPhysicalAddress, 1, RSDT_SIG);
250 if (rsdt == NULL) {
251 if (bootverbose)
252 printf("MADT: Failed to map RSDT\n");
253 return (ENXIO);
254 }
255 count = (rsdt->Length - sizeof(ACPI_TABLE_HEADER)) /
256 sizeof(UINT32);
257 for (i = 0; i < count; i++)
258 if (madt_probe_table(rsdt->TableOffsetEntry[i]))
259 break;
260 madt_unmap_table(rsdt);
261 }
262 pmap_unmapdev((vm_offset_t)rsdp, sizeof(RSDP_DESCRIPTOR));
263 if (madt_physaddr == 0) {
264 if (bootverbose)
265 printf("MADT: No MADT table found\n");
266 return (ENXIO);
267 }
268 if (bootverbose)
269 printf("MADT: Found table at 0x%jx\n",
270 (uintmax_t)madt_physaddr);
271
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272 /*
273 * Verify that we can map the full table and that its checksum is
274 * correct, etc.
275 */
276 madt = madt_map_table(madt_physaddr, 0, APIC_SIG);
277 if (madt == NULL)
278 return (ENXIO);
279 madt_unmap_table(madt);
280 madt = NULL;
281
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282 return (0);
283}
284
285/*
286 * See if a given ACPI table is the MADT.
287 */
288static int
289madt_probe_table(vm_paddr_t address)
290{
291 ACPI_TABLE_HEADER *table;
292
293 table = madt_map(address, 0, sizeof(ACPI_TABLE_HEADER));
294 if (table == NULL) {
295 if (bootverbose)
296 printf("MADT: Failed to map table at 0x%jx\n",
297 (uintmax_t)address);
298 return (0);
299 }
300 if (bootverbose)
301 printf("Table '%.4s' at 0x%jx\n", table->Signature,
302 (uintmax_t)address);
303
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304 if (strncmp(table->Signature, APIC_SIG, 4) != 0) {
305 madt_unmap(table, sizeof(ACPI_TABLE_HEADER));
306 return (0);
307 }
308 madt_physaddr = address;
309 madt_length = table->Length;
310 madt_unmap(table, sizeof(ACPI_TABLE_HEADER));
311 return (1);
312}
313
314/*
315 * Run through the MP table enumerating CPUs.
316 */
317static int
318madt_probe_cpus(void)
319{
320
321 madt = madt_map_table(madt_physaddr, 0, APIC_SIG);
322 KASSERT(madt != NULL, ("Unable to re-map MADT"));
323 madt_walk_table(madt_probe_cpus_handler, NULL);
324 madt_unmap_table(madt);
325 madt = NULL;
326 return (0);
327}
328
329/*
330 * Initialize the local APIC on the BSP.
331 */
332static int
333madt_setup_local(void)
334{
335
336 madt = pmap_mapdev(madt_physaddr, madt_length);
337 lapic_init((uintptr_t)madt->LocalApicAddress);
338 printf("ACPI APIC Table: <%.*s %.*s>\n",
339 (int)sizeof(madt->OemId), madt->OemId,
340 (int)sizeof(madt->OemTableId), madt->OemTableId);
341
342 /*
343 * We ignore 64-bit local APIC override entries. Should we
344 * perhaps emit a warning here if we find one?
345 */
346 return (0);
347}
348
349/*
350 * Enumerate I/O APICs and setup interrupt sources.
351 */
352static int
353madt_setup_io(void)
354{
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355 void *ioapic;
356 u_int pin;
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357 int i;
358
359 /* Try to initialize ACPI so that we can access the FADT. */
360 i = acpi_Startup();
361 if (ACPI_FAILURE(i)) {
362 printf("MADT: ACPI Startup failed with %s\n",
363 AcpiFormatException(i));
364 printf("Try disabling either ACPI or apic support.\n");
365 panic("Using MADT but ACPI doesn't work");
366 }
367
368 /* First, we run through adding I/O APIC's. */
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369 if (madt->PCATCompat)
370 ioapic_enable_mixed_mode();
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371 madt_walk_table(madt_parse_apics, NULL);
372
373 /* Second, we run through the table tweaking interrupt sources. */
374 madt_walk_table(madt_parse_ints, NULL);
375
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376 /*
377 * If there was not an explicit override entry for the SCI,
378 * force it to use level trigger and active-low polarity.
379 */
380 if (!madt_found_sci_override) {
381 if (madt_find_interrupt(AcpiGbl_FADT->SciInt, &ioapic, &pin)
382 != 0)
383 printf("MADT: Could not find APIC for SCI IRQ %d\n",
384 AcpiGbl_FADT->SciInt);
385 else {
386 printf(
387 "MADT: Forcing active-low polarity and level trigger for SCI\n");
388 ioapic_set_polarity(ioapic, pin, INTR_POLARITY_LOW);
389 ioapic_set_triggermode(ioapic, pin, INTR_TRIGGER_LEVEL);
390 }
391 }
392
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393 /* Third, we register all the I/O APIC's. */
394 for (i = 0; i < NIOAPICS; i++)
395 if (ioapics[i].io_apic != NULL)
396 ioapic_register(ioapics[i].io_apic);
397
398 /* Finally, we throw the switch to enable the I/O APIC's. */
399 acpi_SetDefaultIntrModel(ACPI_INTR_APIC);
400
401 return (0);
402}
403
404static void
405madt_register(void *dummy __unused)
406{
407
408 apic_register_enumerator(&madt_enumerator);
409}
410SYSINIT(madt_register, SI_SUB_CPU - 1, SI_ORDER_FIRST, madt_register, NULL)
411
412/*
413 * Call the handler routine for each entry in the MADT table.
414 */
415static void
416madt_walk_table(madt_entry_handler *handler, void *arg)
417{
418 APIC_HEADER *entry;
419 u_char *p, *end;
420
421 end = (u_char *)(madt) + madt->Length;
422 for (p = (u_char *)(madt + 1); p < end; ) {
423 entry = (APIC_HEADER *)p;
424 handler(entry, arg);
425 p += entry->Length;
426 }
427}
428
429static void
430madt_probe_cpus_handler(APIC_HEADER *entry, void *arg)
431{
432 MADT_PROCESSOR_APIC *proc;
433 struct lapic_info *la;
434
435 switch (entry->Type) {
436 case APIC_PROCESSOR:
437 /*
438 * The MADT does not include a BSP flag, so we have to
439 * let the MP code figure out which CPU is the BSP on
440 * its own.
441 */
442 proc = (MADT_PROCESSOR_APIC *)entry;
443 if (bootverbose)
444 printf("MADT: Found CPU APIC ID %d ACPI ID %d: %s\n",
445 proc->LocalApicId, proc->ProcessorId,
446 proc->ProcessorEnabled ? "enabled" : "disabled");
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447 if (!proc->ProcessorEnabled)
448 break;
449 if (proc->LocalApicId >= NLAPICS)
5ed44076 450 panic("%s: CPU ID %d too high", __func__,
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451 proc->LocalApicId);
452 la = &lapics[proc->LocalApicId];
453 KASSERT(la->la_enabled == 0,
454 ("Duplicate local APIC ID %d", proc->LocalApicId));
455 la->la_enabled = 1;
456 la->la_acpi_id = proc->ProcessorId;
457 lapic_create(proc->LocalApicId, 0);
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458 break;
459 }
460}
461
462
463/*
464 * Add an I/O APIC from an entry in the table.
465 */
466static void
467madt_parse_apics(APIC_HEADER *entry, void *arg __unused)
468{
469 MADT_IO_APIC *apic;
470
471 switch (entry->Type) {
472 case APIC_IO:
473 apic = (MADT_IO_APIC *)entry;
474 if (bootverbose)
475 printf("MADT: Found IO APIC ID %d, Interrupt %d at %p\n",
476 apic->IoApicId, apic->Interrupt,
477 (void *)(uintptr_t)apic->Address);
478 if (apic->IoApicId >= NIOAPICS)
479 panic("%s: I/O APIC ID %d too high", __func__,
480 apic->IoApicId);
481 if (ioapics[apic->IoApicId].io_apic != NULL)
482 panic("%s: Double APIC ID %d", __func__,
483 apic->IoApicId);
484 ioapics[apic->IoApicId].io_apic = ioapic_create(
485 (uintptr_t)apic->Address, apic->IoApicId,
486 apic->Interrupt);
487 ioapics[apic->IoApicId].io_vector = apic->Interrupt;
488 break;
489 default:
490 break;
491 }
492}
493
494/*
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495 * Determine properties of an interrupt source. Note that for ACPI these
496 * functions are only used for ISA interrupts, so we assume ISA bus values
497 * (Active Hi, Edge Triggered) for conforming values except for the ACPI
498 * SCI for which we use Active Lo, Level Triggered.
5ed44076 499 */
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500static enum intr_polarity
501interrupt_polarity(UINT16 Polarity, UINT8 Source)
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502{
503
504 switch (Polarity) {
505 case POLARITY_CONFORMS:
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506 if (Source == AcpiGbl_FADT->SciInt)
507 return (INTR_POLARITY_LOW);
508 else
509 return (INTR_POLARITY_HIGH);
5ed44076 510 case POLARITY_ACTIVE_HIGH:
f9d8cd12 511 return (INTR_POLARITY_HIGH);
5ed44076 512 case POLARITY_ACTIVE_LOW:
f9d8cd12 513 return (INTR_POLARITY_LOW);
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514 default:
515 panic("Bogus Interrupt Polarity");
516 }
517}
518
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519static enum intr_trigger
520interrupt_trigger(UINT16 TriggerMode, UINT8 Source)
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521{
522
523 switch (TriggerMode) {
524 case TRIGGER_CONFORMS:
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525 if (Source == AcpiGbl_FADT->SciInt)
526 return (INTR_TRIGGER_LEVEL);
527 else
528 return (INTR_TRIGGER_EDGE);
5ed44076 529 case TRIGGER_EDGE:
f9d8cd12 530 return (INTR_TRIGGER_EDGE);
5ed44076 531 case TRIGGER_LEVEL:
f9d8cd12 532 return (INTR_TRIGGER_LEVEL);
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533 default:
534 panic("Bogus Interrupt Trigger Mode");
535 }
536}
537
538/*
539 * Find the local APIC ID associated with a given ACPI Processor ID.
540 */
541static int
542madt_find_cpu(u_int acpi_id, u_int *apic_id)
543{
49e48b8a 544 int i;
5ed44076 545
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546 for (i = 0; i < NLAPICS; i++) {
547 if (!lapics[i].la_enabled)
548 continue;
549 if (lapics[i].la_acpi_id != acpi_id)
550 continue;
551 *apic_id = i;
5ed44076 552 return (0);
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553 }
554 return (ENOENT);
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555}
556
557/*
558 * Find the IO APIC and pin on that APIC associated with a given global
559 * interrupt.
560 */
561static int
562madt_find_interrupt(int intr, void **apic, u_int *pin)
563{
564 int i, best;
565
566 best = -1;
567 for (i = 0; i < NIOAPICS; i++) {
568 if (ioapics[i].io_apic == NULL ||
569 ioapics[i].io_vector > intr)
570 continue;
571 if (best == -1 ||
572 ioapics[best].io_vector < ioapics[i].io_vector)
573 best = i;
574 }
575 if (best == -1)
576 return (ENOENT);
577 *apic = ioapics[best].io_apic;
578 *pin = intr - ioapics[best].io_vector;
579 if (*pin > 32)
580 printf("WARNING: Found intpin of %u for vector %d\n", *pin,
581 intr);
582 return (0);
583}
584
585/*
586 * Parse an interrupt source override for an ISA interrupt.
587 */
588static void
589madt_parse_interrupt_override(MADT_INTERRUPT_OVERRIDE *intr)
590{
591 void *new_ioapic, *old_ioapic;
592 u_int new_pin, old_pin;
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593 enum intr_trigger trig;
594 enum intr_polarity pol;
595 char buf[64];
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596
597 if (bootverbose)
598 printf("MADT: intr override: source %u, irq %u\n",
599 intr->Source, intr->Interrupt);
600 KASSERT(intr->Bus == 0, ("bus for interrupt overrides must be zero"));
601 if (madt_find_interrupt(intr->Interrupt, &new_ioapic,
602 &new_pin) != 0) {
603 printf("MADT: Could not find APIC for vector %d (IRQ %d)\n",
604 intr->Interrupt, intr->Source);
605 return;
606 }
607
608 /*
f9d8cd12
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609 * Lookup the appropriate trigger and polarity modes for this
610 * entry.
611 */
612 trig = interrupt_trigger(intr->TriggerMode, intr->Source);
613 pol = interrupt_polarity(intr->Polarity, intr->Source);
614
615 /*
5ed44076 616 * If the SCI is identity mapped but has edge trigger and
f9d8cd12
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617 * active-hi polarity or the force_sci_lo tunable is set,
618 * force it to use level/lo.
5ed44076 619 */
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620 if (intr->Source == AcpiGbl_FADT->SciInt) {
621 madt_found_sci_override = 1;
622 if (getenv_string("hw.acpi.sci.trigger", buf, sizeof(buf))) {
623 if (tolower(buf[0]) == 'e')
624 trig = INTR_TRIGGER_EDGE;
625 else if (tolower(buf[0]) == 'l')
626 trig = INTR_TRIGGER_LEVEL;
627 else
628 panic(
629 "Invalid trigger %s: must be 'edge' or 'level'",
630 buf);
631 printf("MADT: Forcing SCI to %s trigger\n",
632 trig == INTR_TRIGGER_EDGE ? "edge" : "level");
633 }
634 if (getenv_string("hw.acpi.sci.polarity", buf, sizeof(buf))) {
635 if (tolower(buf[0]) == 'h')
636 pol = INTR_POLARITY_HIGH;
637 else if (tolower(buf[0]) == 'l')
638 pol = INTR_POLARITY_LOW;
639 else
640 panic(
641 "Invalid polarity %s: must be 'high' or 'low'",
642 buf);
643 printf("MADT: Forcing SCI to active %s polarity\n",
644 pol == INTR_POLARITY_HIGH ? "high" : "low");
645 }
646 }
5ed44076 647
f9d8cd12 648 /* Remap the IRQ if it is mapped to a different interrupt vector. */
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649 if (intr->Source != intr->Interrupt) {
650 /*
651 * If the SCI is remapped to a non-ISA global interrupt,
652 * then override the vector we use to setup and allocate
653 * the interrupt.
654 */
655 if (intr->Interrupt > 15 &&
656 intr->Source == AcpiGbl_FADT->SciInt)
657 acpi_OverrideInterruptLevel(intr->Interrupt);
658 else
659 ioapic_remap_vector(new_ioapic, new_pin, intr->Source);
660 if (madt_find_interrupt(intr->Source, &old_ioapic,
661 &old_pin) != 0)
662 printf("MADT: Could not find APIC for source IRQ %d\n",
663 intr->Source);
664 else if (ioapic_get_vector(old_ioapic, old_pin) ==
665 intr->Source)
666 ioapic_disable_pin(old_ioapic, old_pin);
667 }
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668
669 /* Program the polarity and trigger mode. */
670 ioapic_set_triggermode(new_ioapic, new_pin, trig);
671 ioapic_set_polarity(new_ioapic, new_pin, pol);
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672}
673
674/*
675 * Parse an entry for an NMI routed to an IO APIC.
676 */
677static void
678madt_parse_nmi(MADT_NMI_SOURCE *nmi)
679{
680 void *ioapic;
681 u_int pin;
682
683 if (madt_find_interrupt(nmi->Interrupt, &ioapic, &pin) != 0) {
684 printf("MADT: Could not find APIC for vector %d\n",
685 nmi->Interrupt);
686 return;
687 }
688
689 ioapic_set_nmi(ioapic, pin);
690 if (nmi->TriggerMode != TRIGGER_CONFORMS)
691 ioapic_set_triggermode(ioapic, pin,
f9d8cd12 692 interrupt_trigger(nmi->TriggerMode, 0));
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693 if (nmi->Polarity != TRIGGER_CONFORMS)
694 ioapic_set_polarity(ioapic, pin,
f9d8cd12 695 interrupt_polarity(nmi->Polarity, 0));
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696}
697
698/*
699 * Parse an entry for an NMI routed to a local APIC LVT pin.
700 */
701static void
702madt_parse_local_nmi(MADT_LOCAL_APIC_NMI *nmi)
703{
704 u_int apic_id, pin;
705
706 if (nmi->ProcessorId == 0xff)
707 apic_id = APIC_ID_ALL;
708 else if (madt_find_cpu(nmi->ProcessorId, &apic_id) != 0) {
709 if (bootverbose)
710 printf("MADT: Ignoring local NMI routed to ACPI CPU %u\n",
711 nmi->ProcessorId);
712 return;
713 }
714 if (nmi->Lint == 0)
715 pin = LVT_LINT0;
716 else
717 pin = LVT_LINT1;
718 lapic_set_lvt_mode(apic_id, pin, APIC_LVT_DM_NMI);
719 if (nmi->TriggerMode != TRIGGER_CONFORMS)
720 lapic_set_lvt_triggermode(apic_id, pin,
f9d8cd12 721 interrupt_trigger(nmi->TriggerMode, 0));
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722 if (nmi->Polarity != POLARITY_CONFORMS)
723 lapic_set_lvt_polarity(apic_id, pin,
f9d8cd12 724 interrupt_polarity(nmi->Polarity, 0));
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725}
726
727/*
728 * Parse interrupt entries.
729 */
730static void
731madt_parse_ints(APIC_HEADER *entry, void *arg __unused)
732{
733
734 switch (entry->Type) {
735 case APIC_XRUPT_OVERRIDE:
736 madt_parse_interrupt_override(
737 (MADT_INTERRUPT_OVERRIDE *)entry);
738 break;
739 case APIC_NMI:
740 madt_parse_nmi((MADT_NMI_SOURCE *)entry);
741 break;
742 case APIC_LOCAL_NMI:
743 madt_parse_local_nmi((MADT_LOCAL_APIC_NMI *)entry);
744 break;
745 }
746}
747
748/*
749 * Setup per-CPU ACPI IDs.
750 */
751static void
752madt_set_ids(void *dummy)
753{
49e48b8a 754 struct lapic_info *la;
5ed44076 755 struct mdglobaldata *md;
49e48b8a 756 u_int i;
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757
758 if (madt == NULL)
759 return;
760 for (i = 0; i < ncpus; i++) {
761 if ((smp_active_mask & (1 << i)) == 0)
762 continue;
763 md = (struct mdglobaldata *)globaldata_find(i);
764 KKASSERT(md != NULL);
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765 la = &lapics[md->gd_apic_id];
766 if (!la->la_enabled)
767 panic("APIC: CPU with APIC ID %u is not enabled",
768 md->gd_apic_id);
769 md->gd_acpi_id = la->la_acpi_id;
770 if (bootverbose)
771 printf("APIC: CPU %u has ACPI ID %u\n", i,
772 la->la_acpi_id);
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773 }
774}
775SYSINIT(madt_set_ids, SI_SUB_CPU, SI_ORDER_ANY, madt_set_ids, NULL)