x86_64: Move ioapic function declarations from smp.h to apic/ioapic.h
[dragonfly.git] / sys / platform / pc64 / acpica5 / acpi_madt.c
CommitLineData
8e4c6923
MN
1/*
2 * Copyright (c) 2009 The DragonFly Project. All rights reserved.
3 *
4 * This code is derived from software contributed to The DragonFly Project
5 * by Sepherosa Ziehau <sepherosa@gmail.com>
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
16 * distribution.
17 * 3. Neither the name of The DragonFly Project nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific, prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35#include <sys/param.h>
ae80be10 36#include <sys/bus.h>
91903a05 37#include <sys/kernel.h>
8e4c6923
MN
38#include <sys/systm.h>
39
40#include <machine/pmap.h>
41#include <machine/smp.h>
ee5932ac
MN
42#include <machine/md_var.h>
43#include <machine/specialreg.h>
2b6cd37e 44#include <machine_base/apic/lapic.h>
61452645 45#include <machine_base/apic/ioapic.h>
8e4c6923 46
d6c62a5d
SZ
47#include "acpi_sdt.h"
48#include "acpi_sdt_var.h"
49
c87b587d
MN
50#define MADT_VPRINTF(fmt, arg...) \
51do { \
52 if (bootverbose) \
53 kprintf("ACPI MADT: " fmt , ##arg); \
54} while (0)
55
8e4c6923
MN
56/* Multiple APIC Description Table */
57struct acpi_madt {
58 struct acpi_sdth madt_hdr;
59 uint32_t madt_lapic_addr;
60 uint32_t madt_flags;
61 uint8_t madt_ents[1];
62} __packed;
63
64/* Common parts of MADT APIC structure */
65struct acpi_madt_ent {
66 uint8_t me_type; /* MADT_ENT_ */
67 uint8_t me_len;
68} __packed;
69
70#define MADT_ENT_LAPIC 0
0492bd82 71#define MADT_ENT_IOAPIC 1
65b2387f 72#define MADT_ENT_INTSRC 2
ebbde674 73#define MADT_ENT_LAPIC_ADDR 5
8e4c6923
MN
74
75/* MADT Processor Local APIC */
76struct acpi_madt_lapic {
77 struct acpi_madt_ent ml_hdr;
78 uint8_t ml_cpu_id;
79 uint8_t ml_apic_id;
80 uint32_t ml_flags; /* MADT_LAPIC_ */
81} __packed;
82
83#define MADT_LAPIC_ENABLED 0x1
84
0492bd82
MN
85/* MADT I/O APIC */
86struct acpi_madt_ioapic {
87 struct acpi_madt_ent mio_hdr;
88 uint8_t mio_apic_id;
89 uint8_t mio_reserved;
90 uint32_t mio_addr;
91 uint32_t mio_gsi_base;
92} __packed;
93
2bbbec42 94/* MADT Interrupt Source Override */
922e4bcb
SZ
95struct acpi_madt_intsrc {
96 struct acpi_madt_ent mint_hdr;
65b2387f 97 uint8_t mint_bus; /* MADT_INT_BUS_ */
922e4bcb
SZ
98 uint8_t mint_src;
99 uint32_t mint_gsi;
100 uint16_t mint_flags; /* MADT_INT_ */
2bbbec42
SZ
101} __packed;
102
65b2387f
SZ
103#define MADT_INT_BUS_ISA 0
104
922e4bcb
SZ
105#define MADT_INT_POLA_MASK 0x3
106#define MADT_INT_POLA_SHIFT 0
107#define MADT_INT_POLA_CONFORM 0
108#define MADT_INT_POLA_HIGH 1
109#define MADT_INT_POLA_RSVD 2
110#define MADT_INT_POLA_LOW 3
111#define MADT_INT_TRIG_MASK 0xc
112#define MADT_INT_TRIG_SHIFT 2
113#define MADT_INT_TRIG_CONFORM 0
114#define MADT_INT_TRIG_EDGE 1
115#define MADT_INT_TRIG_RSVD 2
116#define MADT_INT_TRIG_LEVEL 3
2bbbec42 117
ebbde674
MN
118/* MADT Local APIC Address Override */
119struct acpi_madt_lapic_addr {
120 struct acpi_madt_ent mla_hdr;
121 uint16_t mla_reserved;
122 uint64_t mla_lapic_addr;
123} __packed;
124
0492bd82
MN
125typedef int (*madt_iter_t)(void *,
126 const struct acpi_madt_ent *);
8e4c6923 127
4ad5917f 128static int madt_check(vm_paddr_t);
0492bd82
MN
129static int madt_iterate_entries(struct acpi_madt *,
130 madt_iter_t, void *);
8e4c6923 131
27b59776
SZ
132static vm_offset_t madt_lapic_pass1(void);
133static int madt_lapic_pass2(int);
91903a05
MN
134
135static void madt_lapic_enumerate(struct lapic_enumerator *);
136static int madt_lapic_probe(struct lapic_enumerator *);
137
65b2387f
SZ
138static void madt_ioapic_enumerate(
139 struct ioapic_enumerator *);
140static int madt_ioapic_probe(struct ioapic_enumerator *);
141
86120698
SZ
142static vm_paddr_t madt_phyaddr;
143
144static void
8e4c6923
MN
145madt_probe(void)
146{
d6c62a5d 147 vm_paddr_t madt_paddr;
8e4c6923 148
86120698
SZ
149 KKASSERT(madt_phyaddr == 0);
150
d6c62a5d 151 madt_paddr = sdt_search(ACPI_MADT_SIG);
8e4c6923
MN
152 if (madt_paddr == 0) {
153 kprintf("madt_probe: can't locate MADT\n");
86120698 154 return;
8e4c6923 155 }
4ad5917f
MN
156
157 /* Preliminary checks */
86120698
SZ
158 if (madt_check(madt_paddr)) {
159 kprintf("madt_probe: madt_check failed\n");
160 return;
161 }
162
163 madt_phyaddr = madt_paddr;
8e4c6923 164}
d6c62a5d 165SYSINIT(madt_probe, SI_BOOT2_PRESMP, SI_ORDER_SECOND, madt_probe, 0);
8e4c6923 166
ebbde674 167static int
27b59776
SZ
168madt_check(vm_paddr_t madt_paddr)
169{
170 struct acpi_madt *madt;
171 int error = 0;
172
173 KKASSERT(madt_paddr != 0);
174
d6c62a5d 175 madt = sdt_sdth_map(madt_paddr);
27b59776
SZ
176 KKASSERT(madt != NULL);
177
7d460393
SZ
178 /*
179 * MADT in ACPI specification 1.0 - 4.0
180 */
181 if (madt->madt_hdr.sdth_rev < 1 || madt->madt_hdr.sdth_rev > 3) {
27b59776
SZ
182 kprintf("madt_check: unsupported MADT revision %d\n",
183 madt->madt_hdr.sdth_rev);
184 error = EOPNOTSUPP;
185 goto back;
186 }
187
188 if (madt->madt_hdr.sdth_len <
189 sizeof(*madt) - sizeof(madt->madt_ents)) {
190 kprintf("madt_check: invalid MADT length %u\n",
191 madt->madt_hdr.sdth_len);
192 error = EINVAL;
193 goto back;
194 }
195back:
d6c62a5d 196 sdt_sdth_unmap(&madt->madt_hdr);
27b59776
SZ
197 return error;
198}
199
200static int
201madt_iterate_entries(struct acpi_madt *madt, madt_iter_t func, void *arg)
202{
203 int size, cur, error;
204
205 size = madt->madt_hdr.sdth_len -
206 (sizeof(*madt) - sizeof(madt->madt_ents));
207 cur = 0;
208 error = 0;
209
210 while (size - cur > sizeof(struct acpi_madt_ent)) {
211 const struct acpi_madt_ent *ent;
212
213 ent = (const struct acpi_madt_ent *)&madt->madt_ents[cur];
214 if (ent->me_len < sizeof(*ent)) {
215 kprintf("madt_iterate_entries: invalid MADT "
216 "entry len %d\n", ent->me_len);
217 error = EINVAL;
218 break;
219 }
220 if (ent->me_len > (size - cur)) {
221 kprintf("madt_iterate_entries: invalid MADT "
222 "entry len %d, > table length\n", ent->me_len);
223 error = EINVAL;
224 break;
225 }
226
227 cur += ent->me_len;
228
229 /*
230 * Only Local APIC, I/O APIC and Interrupt Source Override
231 * are defined in ACPI specification 1.0 - 4.0
232 */
233 switch (ent->me_type) {
234 case MADT_ENT_LAPIC:
235 if (ent->me_len < sizeof(struct acpi_madt_lapic)) {
236 kprintf("madt_iterate_entries: invalid MADT "
237 "lapic entry len %d\n", ent->me_len);
238 error = EINVAL;
239 }
240 break;
241
242 case MADT_ENT_IOAPIC:
243 if (ent->me_len < sizeof(struct acpi_madt_ioapic)) {
244 kprintf("madt_iterate_entries: invalid MADT "
245 "ioapic entry len %d\n", ent->me_len);
246 error = EINVAL;
247 }
248 break;
249
65b2387f 250 case MADT_ENT_INTSRC:
922e4bcb 251 if (ent->me_len < sizeof(struct acpi_madt_intsrc)) {
27b59776 252 kprintf("madt_iterate_entries: invalid MADT "
922e4bcb 253 "intsrc entry len %d\n",
27b59776
SZ
254 ent->me_len);
255 error = EINVAL;
256 }
257 break;
258 }
259 if (error)
260 break;
261
262 error = func(arg, ent);
263 if (error)
264 break;
265 }
266 return error;
267}
268
269static int
270madt_lapic_pass1_callback(void *xarg, const struct acpi_madt_ent *ent)
ebbde674
MN
271{
272 const struct acpi_madt_lapic_addr *lapic_addr_ent;
273 uint64_t *addr64 = xarg;
274
275 if (ent->me_type != MADT_ENT_LAPIC_ADDR)
276 return 0;
277 if (ent->me_len < sizeof(*lapic_addr_ent)) {
27b59776
SZ
278 kprintf("madt_lapic_pass1: "
279 "invalid LAPIC address override length\n");
ebbde674
MN
280 return 0;
281 }
282 lapic_addr_ent = (const struct acpi_madt_lapic_addr *)ent;
283
284 *addr64 = lapic_addr_ent->mla_lapic_addr;
285 return 0;
286}
287
91903a05 288static vm_offset_t
27b59776 289madt_lapic_pass1(void)
8e4c6923
MN
290{
291 struct acpi_madt *madt;
4ad5917f 292 vm_offset_t lapic_addr;
ebbde674
MN
293 uint64_t lapic_addr64;
294 int error;
8e4c6923 295
86120698 296 KKASSERT(madt_phyaddr != 0);
8e4c6923 297
d6c62a5d 298 madt = sdt_sdth_map(madt_phyaddr);
8e4c6923
MN
299 KKASSERT(madt != NULL);
300
c87b587d
MN
301 MADT_VPRINTF("LAPIC address 0x%08x, flags %#x\n",
302 madt->madt_lapic_addr, madt->madt_flags);
4ad5917f
MN
303 lapic_addr = madt->madt_lapic_addr;
304
ebbde674 305 lapic_addr64 = 0;
27b59776
SZ
306 error = madt_iterate_entries(madt, madt_lapic_pass1_callback,
307 &lapic_addr64);
ebbde674
MN
308 if (error)
309 panic("madt_iterate_entries(pass1) failed\n");
310
311 if (lapic_addr64 != 0) {
cb31590d
SZ
312 kprintf("ACPI MADT: 64bits lapic address 0x%lx\n",
313 lapic_addr64);
ebbde674
MN
314 lapic_addr = lapic_addr64;
315 }
316
d6c62a5d 317 sdt_sdth_unmap(&madt->madt_hdr);
4ad5917f
MN
318
319 return lapic_addr;
320}
321
27b59776 322struct madt_lapic_pass2_cbarg {
2c394345
MN
323 int cpu;
324 int bsp_found;
325 int bsp_apic_id;
326};
327
328static int
27b59776 329madt_lapic_pass2_callback(void *xarg, const struct acpi_madt_ent *ent)
2c394345
MN
330{
331 const struct acpi_madt_lapic *lapic_ent;
27b59776 332 struct madt_lapic_pass2_cbarg *arg = xarg;
2c394345
MN
333
334 if (ent->me_type != MADT_ENT_LAPIC)
335 return 0;
336
337 lapic_ent = (const struct acpi_madt_lapic *)ent;
338 if (lapic_ent->ml_flags & MADT_LAPIC_ENABLED) {
65b2387f 339 MADT_VPRINTF("cpu id %d, apic id %d\n",
c87b587d 340 lapic_ent->ml_cpu_id, lapic_ent->ml_apic_id);
2c394345
MN
341 if (lapic_ent->ml_apic_id == arg->bsp_apic_id) {
342 mp_set_cpuids(0, lapic_ent->ml_apic_id);
343 arg->bsp_found = 1;
344 } else {
345 mp_set_cpuids(arg->cpu, lapic_ent->ml_apic_id);
346 arg->cpu++;
347 }
348 }
349 return 0;
350}
351
91903a05 352static int
27b59776 353madt_lapic_pass2(int bsp_apic_id)
4ad5917f
MN
354{
355 struct acpi_madt *madt;
27b59776 356 struct madt_lapic_pass2_cbarg arg;
2c394345 357 int error;
4ad5917f 358
c87b587d 359 MADT_VPRINTF("BSP apic id %d\n", bsp_apic_id);
4ad5917f 360
86120698 361 KKASSERT(madt_phyaddr != 0);
4ad5917f 362
d6c62a5d 363 madt = sdt_sdth_map(madt_phyaddr);
4ad5917f 364 KKASSERT(madt != NULL);
8e4c6923 365
2c394345
MN
366 bzero(&arg, sizeof(arg));
367 arg.cpu = 1;
368 arg.bsp_apic_id = bsp_apic_id;
8e4c6923 369
27b59776 370 error = madt_iterate_entries(madt, madt_lapic_pass2_callback, &arg);
2c394345
MN
371 if (error)
372 panic("madt_iterate_entries(pass2) failed\n");
8e4c6923 373
2c394345
MN
374 KKASSERT(arg.bsp_found);
375 KKASSERT(arg.cpu > 1);
376 mp_naps = arg.cpu - 1; /* exclude BSP */
4ad5917f 377
d6c62a5d 378 sdt_sdth_unmap(&madt->madt_hdr);
2c394345
MN
379
380 return 0;
4ad5917f
MN
381}
382
86120698
SZ
383struct madt_lapic_probe_cbarg {
384 int cpu_count;
385 vm_offset_t lapic_addr;
386};
387
388static int
389madt_lapic_probe_callback(void *xarg, const struct acpi_madt_ent *ent)
390{
391 struct madt_lapic_probe_cbarg *arg = xarg;
392
393 if (ent->me_type == MADT_ENT_LAPIC) {
394 const struct acpi_madt_lapic *lapic_ent;
395
396 lapic_ent = (const struct acpi_madt_lapic *)ent;
397 if (lapic_ent->ml_flags & MADT_LAPIC_ENABLED)
398 arg->cpu_count++;
399 } else if (ent->me_type == MADT_ENT_LAPIC_ADDR) {
400 const struct acpi_madt_lapic_addr *lapic_addr_ent;
401
402 if (ent->me_len < sizeof(*lapic_addr_ent)) {
403 kprintf("madt_lapic_probe: "
404 "invalid LAPIC address override length\n");
405 return 0;
406 }
407 lapic_addr_ent = (const struct acpi_madt_lapic_addr *)ent;
408
409 if (lapic_addr_ent->mla_lapic_addr != 0)
410 arg->lapic_addr = lapic_addr_ent->mla_lapic_addr;
411 }
412 return 0;
413}
414
91903a05
MN
415static int
416madt_lapic_probe(struct lapic_enumerator *e)
417{
86120698
SZ
418 struct madt_lapic_probe_cbarg arg;
419 struct acpi_madt *madt;
420 int error;
91903a05 421
86120698 422 if (madt_phyaddr == 0)
91903a05
MN
423 return ENXIO;
424
d6c62a5d 425 madt = sdt_sdth_map(madt_phyaddr);
86120698
SZ
426 KKASSERT(madt != NULL);
427
428 bzero(&arg, sizeof(arg));
429 arg.lapic_addr = madt->madt_lapic_addr;
430
431 error = madt_iterate_entries(madt, madt_lapic_probe_callback, &arg);
432 if (!error) {
433 if (arg.cpu_count <= 1) {
434 kprintf("madt_lapic_probe: "
435 "less than 2 CPUs is found\n");
436 error = EOPNOTSUPP;
437 }
438 if (arg.lapic_addr == 0) {
439 kprintf("madt_lapic_probe: zero LAPIC address\n");
440 error = EOPNOTSUPP;
441 }
442 }
443
d6c62a5d 444 sdt_sdth_unmap(&madt->madt_hdr);
86120698 445 return error;
91903a05
MN
446}
447
448static void
449madt_lapic_enumerate(struct lapic_enumerator *e)
450{
91903a05
MN
451 vm_offset_t lapic_addr;
452 int bsp_apic_id;
453
86120698 454 KKASSERT(madt_phyaddr != 0);
91903a05 455
27b59776 456 lapic_addr = madt_lapic_pass1();
91903a05 457 if (lapic_addr == 0)
86120698 458 panic("madt_lapic_enumerate: no local apic\n");
91903a05 459
b44f1d28 460 lapic_map(lapic_addr);
1c1f402e
MN
461
462 bsp_apic_id = APIC_ID(lapic->id);
27b59776
SZ
463 if (madt_lapic_pass2(bsp_apic_id))
464 panic("madt_lapic_enumerate: madt_lapic_pass2 failed\n");
91903a05
MN
465}
466
86120698
SZ
467static struct lapic_enumerator madt_lapic_enumerator = {
468 .lapic_prio = LAPIC_ENUM_PRIO_MADT,
469 .lapic_probe = madt_lapic_probe,
470 .lapic_enumerate = madt_lapic_enumerate
91903a05
MN
471};
472
473static void
27b59776 474madt_lapic_enum_register(void)
91903a05
MN
475{
476 int prio;
477
478 prio = LAPIC_ENUM_PRIO_MADT;
479 kgetenv_int("hw.madt_lapic_prio", &prio);
86120698 480 madt_lapic_enumerator.lapic_prio = prio;
91903a05 481
86120698 482 lapic_enumerator_register(&madt_lapic_enumerator);
91903a05 483}
27b59776 484SYSINIT(madt_lapic, SI_BOOT2_PRESMP, SI_ORDER_ANY, madt_lapic_enum_register, 0);
65b2387f
SZ
485
486struct madt_ioapic_probe_cbarg {
487 int ioapic_cnt;
488 int gsi_base0;
489};
490
491static int
492madt_ioapic_probe_callback(void *xarg, const struct acpi_madt_ent *ent)
493{
494 struct madt_ioapic_probe_cbarg *arg = xarg;
495
496 if (ent->me_type == MADT_ENT_INTSRC) {
497 const struct acpi_madt_intsrc *intsrc_ent;
498 int trig, pola;
499
500 intsrc_ent = (const struct acpi_madt_intsrc *)ent;
501
1365d5cd
SZ
502 /* XXX magic number */
503 if (intsrc_ent->mint_src >= 16) {
504 kprintf("madt_ioapic_probe: invalid intsrc irq (%d)\n",
505 intsrc_ent->mint_src);
506 return EINVAL;
507 }
508
65b2387f 509 if (intsrc_ent->mint_bus != MADT_INT_BUS_ISA) {
1365d5cd
SZ
510 kprintf("ACPI MADT: warning intsrc irq %d "
511 "bus is not ISA (%d)\n",
512 intsrc_ent->mint_src, intsrc_ent->mint_bus);
65b2387f
SZ
513 }
514
515 trig = (intsrc_ent->mint_flags & MADT_INT_TRIG_MASK) >>
516 MADT_INT_TRIG_SHIFT;
ae80be10 517 if (trig == MADT_INT_TRIG_RSVD) {
1365d5cd
SZ
518 kprintf("ACPI MADT: warning invalid intsrc irq %d "
519 "trig (%d)\n", intsrc_ent->mint_src, trig);
65b2387f
SZ
520 }
521
522 pola = (intsrc_ent->mint_flags & MADT_INT_POLA_MASK) >>
523 MADT_INT_POLA_SHIFT;
ae80be10 524 if (pola == MADT_INT_POLA_RSVD) {
1365d5cd
SZ
525 kprintf("ACPI MADT: warning invalid intsrc irq %d "
526 "pola (%d)\n", intsrc_ent->mint_src, pola);
65b2387f
SZ
527 }
528 } else if (ent->me_type == MADT_ENT_IOAPIC) {
529 const struct acpi_madt_ioapic *ioapic_ent;
530
531 ioapic_ent = (const struct acpi_madt_ioapic *)ent;
532 if (ioapic_ent->mio_addr == 0) {
533 kprintf("madt_ioapic_probe: zero IOAPIC address\n");
534 return EINVAL;
535 }
536
537 arg->ioapic_cnt++;
538 if (ioapic_ent->mio_gsi_base == 0)
539 arg->gsi_base0 = 1;
540 }
541 return 0;
542}
543
544static int
545madt_ioapic_probe(struct ioapic_enumerator *e)
546{
547 struct madt_ioapic_probe_cbarg arg;
548 struct acpi_madt *madt;
549 int error;
550
551 if (madt_phyaddr == 0)
552 return ENXIO;
553
d6c62a5d 554 madt = sdt_sdth_map(madt_phyaddr);
65b2387f
SZ
555 KKASSERT(madt != NULL);
556
557 bzero(&arg, sizeof(arg));
558
559 error = madt_iterate_entries(madt, madt_ioapic_probe_callback, &arg);
560 if (!error) {
561 if (arg.ioapic_cnt == 0) {
562 kprintf("madt_ioapic_probe: no IOAPIC\n");
563 error = ENXIO;
564 }
565 if (!arg.gsi_base0) {
566 kprintf("madt_ioapic_probe: no GSI base 0\n");
567 error = EINVAL;
568 }
569 }
570
d6c62a5d 571 sdt_sdth_unmap(&madt->madt_hdr);
65b2387f
SZ
572 return error;
573}
574
575static int
576madt_ioapic_enum_callback(void *xarg, const struct acpi_madt_ent *ent)
577{
578 if (ent->me_type == MADT_ENT_INTSRC) {
579 const struct acpi_madt_intsrc *intsrc_ent;
ae80be10
SZ
580 enum intr_trigger trig;
581 enum intr_polarity pola;
582 int ent_trig;
65b2387f
SZ
583
584 intsrc_ent = (const struct acpi_madt_intsrc *)ent;
ae80be10
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585
586 KKASSERT(intsrc_ent->mint_src < 16);
587 if (intsrc_ent->mint_bus != MADT_INT_BUS_ISA)
588 return 0;
589
590 ent_trig = (intsrc_ent->mint_flags & MADT_INT_TRIG_MASK) >>
591 MADT_INT_TRIG_SHIFT;
592 if (ent_trig == MADT_INT_TRIG_RSVD) {
1365d5cd 593 return 0;
ca4177e4 594#ifdef notyet
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595 } else if (ent_trig == MADT_INT_TRIG_LEVEL) {
596 trig = INTR_TRIGGER_LEVEL;
597 pola = INTR_POLARITY_LOW;
ca4177e4 598#endif
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599 } else {
600 trig = INTR_TRIGGER_EDGE;
601 pola = INTR_POLARITY_HIGH;
602 }
603
604 if (intsrc_ent->mint_src == intsrc_ent->mint_gsi &&
605 trig == INTR_TRIGGER_EDGE) {
606 /* Nothing changed */
607 return 0;
608 }
1365d5cd 609
4ecd5d4d 610 MADT_VPRINTF("INTSRC irq %d -> gsi %u %s/%s\n",
ae80be10 611 intsrc_ent->mint_src, intsrc_ent->mint_gsi,
4ecd5d4d 612 intr_str_trigger(trig), intr_str_polarity(pola));
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613 ioapic_intsrc(intsrc_ent->mint_src, intsrc_ent->mint_gsi,
614 trig, pola);
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615 } else if (ent->me_type == MADT_ENT_IOAPIC) {
616 const struct acpi_madt_ioapic *ioapic_ent;
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617 uint32_t ver;
618 void *addr;
619 int npin;
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620
621 ioapic_ent = (const struct acpi_madt_ioapic *)ent;
622 MADT_VPRINTF("IOAPIC addr 0x%08x, apic id %d, gsi base %u\n",
623 ioapic_ent->mio_addr, ioapic_ent->mio_apic_id,
624 ioapic_ent->mio_gsi_base);
ebf4f417 625
7a603b36 626 addr = ioapic_map(ioapic_ent->mio_addr);
ebf4f417 627
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628 ver = ioapic_read(addr, IOAPIC_VER);
629 npin = ((ver & IOART_VER_MAXREDIR) >> MAXREDIRSHIFT) + 1;
ebf4f417 630
7a603b36 631 ioapic_add(addr, ioapic_ent->mio_gsi_base, npin);
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632 }
633 return 0;
634}
635
636static void
637madt_ioapic_enumerate(struct ioapic_enumerator *e)
638{
639 struct acpi_madt *madt;
640 int error;
641
642 KKASSERT(madt_phyaddr != 0);
643
d6c62a5d 644 madt = sdt_sdth_map(madt_phyaddr);
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645 KKASSERT(madt != NULL);
646
647 error = madt_iterate_entries(madt, madt_ioapic_enum_callback, NULL);
648 if (error)
649 panic("madt_ioapic_enumerate failed\n");
650
d6c62a5d 651 sdt_sdth_unmap(&madt->madt_hdr);
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652}
653
654static struct ioapic_enumerator madt_ioapic_enumerator = {
655 .ioapic_prio = IOAPIC_ENUM_PRIO_MADT,
656 .ioapic_probe = madt_ioapic_probe,
657 .ioapic_enumerate = madt_ioapic_enumerate
658};
659
660static void
661madt_ioapic_enum_register(void)
662{
663 int prio;
664
665 prio = IOAPIC_ENUM_PRIO_MADT;
666 kgetenv_int("hw.madt_ioapic_prio", &prio);
667 madt_ioapic_enumerator.ioapic_prio = prio;
668
669 ioapic_enumerator_register(&madt_ioapic_enumerator);
670}
671SYSINIT(madt_ioapic, SI_BOOT2_PRESMP, SI_ORDER_ANY,
672 madt_ioapic_enum_register, 0);