2 * Copyright (c) 2005 The DragonFly Project. All rights reserved.
3 * Copyright (c) 1996, by Steve Passe. All rights reserved.
4 * Copyright (c) 1991 The Regents of the University of California.
7 * This code is derived from software contributed to The DragonFly Project
8 * by Matthew Dillon <dillon@backplane.com>
10 * This code is derived from software contributed to Berkeley by
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 * 2. Redistributions in binary form must reproduce the above copyright
20 * notice, this list of conditions and the following disclaimer in
21 * the documentation and/or other materials provided with the
23 * 3. Neither the name of The DragonFly Project nor the names of its
24 * contributors may be used to endorse or promote products derived
25 * from this software without specific, prior written permission.
27 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
29 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
30 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
31 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
32 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
33 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
34 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
35 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
36 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
37 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
40 * $DragonFly: src/sys/platform/pc32/apic/apic_abi.c,v 1.12 2007/04/30 16:45:55 dillon Exp $
43 #include <sys/param.h>
44 #include <sys/systm.h>
45 #include <sys/kernel.h>
46 #include <sys/machintr.h>
47 #include <sys/interrupt.h>
50 #include <sys/thread2.h>
52 #include <machine/smp.h>
53 #include <machine/segments.h>
54 #include <machine/md_var.h>
55 #include <machine/intr_machdep.h>
56 #include <machine/globaldata.h>
57 #include <machine/msi_var.h>
59 #include <machine_base/isa/isa_intr.h>
60 #include <machine_base/icu/icu.h>
61 #include <machine_base/icu/icu_var.h>
62 #include <machine_base/apic/ioapic.h>
63 #include <machine_base/apic/ioapic_abi.h>
64 #include <machine_base/apic/ioapic_ipl.h>
65 #include <machine_base/apic/apicreg.h>
67 #include <dev/acpica5/acpi_sci_var.h>
69 #define IOAPIC_HWI_VECTORS IDT_HWI_VECTORS
82 IDTVEC(ioapic_intr10),
83 IDTVEC(ioapic_intr11),
84 IDTVEC(ioapic_intr12),
85 IDTVEC(ioapic_intr13),
86 IDTVEC(ioapic_intr14),
87 IDTVEC(ioapic_intr15),
88 IDTVEC(ioapic_intr16),
89 IDTVEC(ioapic_intr17),
90 IDTVEC(ioapic_intr18),
91 IDTVEC(ioapic_intr19),
92 IDTVEC(ioapic_intr20),
93 IDTVEC(ioapic_intr21),
94 IDTVEC(ioapic_intr22),
95 IDTVEC(ioapic_intr23),
96 IDTVEC(ioapic_intr24),
97 IDTVEC(ioapic_intr25),
98 IDTVEC(ioapic_intr26),
99 IDTVEC(ioapic_intr27),
100 IDTVEC(ioapic_intr28),
101 IDTVEC(ioapic_intr29),
102 IDTVEC(ioapic_intr30),
103 IDTVEC(ioapic_intr31),
104 IDTVEC(ioapic_intr32),
105 IDTVEC(ioapic_intr33),
106 IDTVEC(ioapic_intr34),
107 IDTVEC(ioapic_intr35),
108 IDTVEC(ioapic_intr36),
109 IDTVEC(ioapic_intr37),
110 IDTVEC(ioapic_intr38),
111 IDTVEC(ioapic_intr39),
112 IDTVEC(ioapic_intr40),
113 IDTVEC(ioapic_intr41),
114 IDTVEC(ioapic_intr42),
115 IDTVEC(ioapic_intr43),
116 IDTVEC(ioapic_intr44),
117 IDTVEC(ioapic_intr45),
118 IDTVEC(ioapic_intr46),
119 IDTVEC(ioapic_intr47),
120 IDTVEC(ioapic_intr48),
121 IDTVEC(ioapic_intr49),
122 IDTVEC(ioapic_intr50),
123 IDTVEC(ioapic_intr51),
124 IDTVEC(ioapic_intr52),
125 IDTVEC(ioapic_intr53),
126 IDTVEC(ioapic_intr54),
127 IDTVEC(ioapic_intr55),
128 IDTVEC(ioapic_intr56),
129 IDTVEC(ioapic_intr57),
130 IDTVEC(ioapic_intr58),
131 IDTVEC(ioapic_intr59),
132 IDTVEC(ioapic_intr60),
133 IDTVEC(ioapic_intr61),
134 IDTVEC(ioapic_intr62),
135 IDTVEC(ioapic_intr63),
136 IDTVEC(ioapic_intr64),
137 IDTVEC(ioapic_intr65),
138 IDTVEC(ioapic_intr66),
139 IDTVEC(ioapic_intr67),
140 IDTVEC(ioapic_intr68),
141 IDTVEC(ioapic_intr69),
142 IDTVEC(ioapic_intr70),
143 IDTVEC(ioapic_intr71),
144 IDTVEC(ioapic_intr72),
145 IDTVEC(ioapic_intr73),
146 IDTVEC(ioapic_intr74),
147 IDTVEC(ioapic_intr75),
148 IDTVEC(ioapic_intr76),
149 IDTVEC(ioapic_intr77),
150 IDTVEC(ioapic_intr78),
151 IDTVEC(ioapic_intr79),
152 IDTVEC(ioapic_intr80),
153 IDTVEC(ioapic_intr81),
154 IDTVEC(ioapic_intr82),
155 IDTVEC(ioapic_intr83),
156 IDTVEC(ioapic_intr84),
157 IDTVEC(ioapic_intr85),
158 IDTVEC(ioapic_intr86),
159 IDTVEC(ioapic_intr87),
160 IDTVEC(ioapic_intr88),
161 IDTVEC(ioapic_intr89),
162 IDTVEC(ioapic_intr90),
163 IDTVEC(ioapic_intr91),
164 IDTVEC(ioapic_intr92),
165 IDTVEC(ioapic_intr93),
166 IDTVEC(ioapic_intr94),
167 IDTVEC(ioapic_intr95),
168 IDTVEC(ioapic_intr96),
169 IDTVEC(ioapic_intr97),
170 IDTVEC(ioapic_intr98),
171 IDTVEC(ioapic_intr99),
172 IDTVEC(ioapic_intr100),
173 IDTVEC(ioapic_intr101),
174 IDTVEC(ioapic_intr102),
175 IDTVEC(ioapic_intr103),
176 IDTVEC(ioapic_intr104),
177 IDTVEC(ioapic_intr105),
178 IDTVEC(ioapic_intr106),
179 IDTVEC(ioapic_intr107),
180 IDTVEC(ioapic_intr108),
181 IDTVEC(ioapic_intr109),
182 IDTVEC(ioapic_intr110),
183 IDTVEC(ioapic_intr111),
184 IDTVEC(ioapic_intr112),
185 IDTVEC(ioapic_intr113),
186 IDTVEC(ioapic_intr114),
187 IDTVEC(ioapic_intr115),
188 IDTVEC(ioapic_intr116),
189 IDTVEC(ioapic_intr117),
190 IDTVEC(ioapic_intr118),
191 IDTVEC(ioapic_intr119),
192 IDTVEC(ioapic_intr120),
193 IDTVEC(ioapic_intr121),
194 IDTVEC(ioapic_intr122),
195 IDTVEC(ioapic_intr123),
196 IDTVEC(ioapic_intr124),
197 IDTVEC(ioapic_intr125),
198 IDTVEC(ioapic_intr126),
199 IDTVEC(ioapic_intr127),
200 IDTVEC(ioapic_intr128),
201 IDTVEC(ioapic_intr129),
202 IDTVEC(ioapic_intr130),
203 IDTVEC(ioapic_intr131),
204 IDTVEC(ioapic_intr132),
205 IDTVEC(ioapic_intr133),
206 IDTVEC(ioapic_intr134),
207 IDTVEC(ioapic_intr135),
208 IDTVEC(ioapic_intr136),
209 IDTVEC(ioapic_intr137),
210 IDTVEC(ioapic_intr138),
211 IDTVEC(ioapic_intr139),
212 IDTVEC(ioapic_intr140),
213 IDTVEC(ioapic_intr141),
214 IDTVEC(ioapic_intr142),
215 IDTVEC(ioapic_intr143),
216 IDTVEC(ioapic_intr144),
217 IDTVEC(ioapic_intr145),
218 IDTVEC(ioapic_intr146),
219 IDTVEC(ioapic_intr147),
220 IDTVEC(ioapic_intr148),
221 IDTVEC(ioapic_intr149),
222 IDTVEC(ioapic_intr150),
223 IDTVEC(ioapic_intr151),
224 IDTVEC(ioapic_intr152),
225 IDTVEC(ioapic_intr153),
226 IDTVEC(ioapic_intr154),
227 IDTVEC(ioapic_intr155),
228 IDTVEC(ioapic_intr156),
229 IDTVEC(ioapic_intr157),
230 IDTVEC(ioapic_intr158),
231 IDTVEC(ioapic_intr159),
232 IDTVEC(ioapic_intr160),
233 IDTVEC(ioapic_intr161),
234 IDTVEC(ioapic_intr162),
235 IDTVEC(ioapic_intr163),
236 IDTVEC(ioapic_intr164),
237 IDTVEC(ioapic_intr165),
238 IDTVEC(ioapic_intr166),
239 IDTVEC(ioapic_intr167),
240 IDTVEC(ioapic_intr168),
241 IDTVEC(ioapic_intr169),
242 IDTVEC(ioapic_intr170),
243 IDTVEC(ioapic_intr171),
244 IDTVEC(ioapic_intr172),
245 IDTVEC(ioapic_intr173),
246 IDTVEC(ioapic_intr174),
247 IDTVEC(ioapic_intr175),
248 IDTVEC(ioapic_intr176),
249 IDTVEC(ioapic_intr177),
250 IDTVEC(ioapic_intr178),
251 IDTVEC(ioapic_intr179),
252 IDTVEC(ioapic_intr180),
253 IDTVEC(ioapic_intr181),
254 IDTVEC(ioapic_intr182),
255 IDTVEC(ioapic_intr183),
256 IDTVEC(ioapic_intr184),
257 IDTVEC(ioapic_intr185),
258 IDTVEC(ioapic_intr186),
259 IDTVEC(ioapic_intr187),
260 IDTVEC(ioapic_intr188),
261 IDTVEC(ioapic_intr189),
262 IDTVEC(ioapic_intr190),
263 IDTVEC(ioapic_intr191);
265 static inthand_t *ioapic_intr[IOAPIC_HWI_VECTORS] = {
266 &IDTVEC(ioapic_intr0),
267 &IDTVEC(ioapic_intr1),
268 &IDTVEC(ioapic_intr2),
269 &IDTVEC(ioapic_intr3),
270 &IDTVEC(ioapic_intr4),
271 &IDTVEC(ioapic_intr5),
272 &IDTVEC(ioapic_intr6),
273 &IDTVEC(ioapic_intr7),
274 &IDTVEC(ioapic_intr8),
275 &IDTVEC(ioapic_intr9),
276 &IDTVEC(ioapic_intr10),
277 &IDTVEC(ioapic_intr11),
278 &IDTVEC(ioapic_intr12),
279 &IDTVEC(ioapic_intr13),
280 &IDTVEC(ioapic_intr14),
281 &IDTVEC(ioapic_intr15),
282 &IDTVEC(ioapic_intr16),
283 &IDTVEC(ioapic_intr17),
284 &IDTVEC(ioapic_intr18),
285 &IDTVEC(ioapic_intr19),
286 &IDTVEC(ioapic_intr20),
287 &IDTVEC(ioapic_intr21),
288 &IDTVEC(ioapic_intr22),
289 &IDTVEC(ioapic_intr23),
290 &IDTVEC(ioapic_intr24),
291 &IDTVEC(ioapic_intr25),
292 &IDTVEC(ioapic_intr26),
293 &IDTVEC(ioapic_intr27),
294 &IDTVEC(ioapic_intr28),
295 &IDTVEC(ioapic_intr29),
296 &IDTVEC(ioapic_intr30),
297 &IDTVEC(ioapic_intr31),
298 &IDTVEC(ioapic_intr32),
299 &IDTVEC(ioapic_intr33),
300 &IDTVEC(ioapic_intr34),
301 &IDTVEC(ioapic_intr35),
302 &IDTVEC(ioapic_intr36),
303 &IDTVEC(ioapic_intr37),
304 &IDTVEC(ioapic_intr38),
305 &IDTVEC(ioapic_intr39),
306 &IDTVEC(ioapic_intr40),
307 &IDTVEC(ioapic_intr41),
308 &IDTVEC(ioapic_intr42),
309 &IDTVEC(ioapic_intr43),
310 &IDTVEC(ioapic_intr44),
311 &IDTVEC(ioapic_intr45),
312 &IDTVEC(ioapic_intr46),
313 &IDTVEC(ioapic_intr47),
314 &IDTVEC(ioapic_intr48),
315 &IDTVEC(ioapic_intr49),
316 &IDTVEC(ioapic_intr50),
317 &IDTVEC(ioapic_intr51),
318 &IDTVEC(ioapic_intr52),
319 &IDTVEC(ioapic_intr53),
320 &IDTVEC(ioapic_intr54),
321 &IDTVEC(ioapic_intr55),
322 &IDTVEC(ioapic_intr56),
323 &IDTVEC(ioapic_intr57),
324 &IDTVEC(ioapic_intr58),
325 &IDTVEC(ioapic_intr59),
326 &IDTVEC(ioapic_intr60),
327 &IDTVEC(ioapic_intr61),
328 &IDTVEC(ioapic_intr62),
329 &IDTVEC(ioapic_intr63),
330 &IDTVEC(ioapic_intr64),
331 &IDTVEC(ioapic_intr65),
332 &IDTVEC(ioapic_intr66),
333 &IDTVEC(ioapic_intr67),
334 &IDTVEC(ioapic_intr68),
335 &IDTVEC(ioapic_intr69),
336 &IDTVEC(ioapic_intr70),
337 &IDTVEC(ioapic_intr71),
338 &IDTVEC(ioapic_intr72),
339 &IDTVEC(ioapic_intr73),
340 &IDTVEC(ioapic_intr74),
341 &IDTVEC(ioapic_intr75),
342 &IDTVEC(ioapic_intr76),
343 &IDTVEC(ioapic_intr77),
344 &IDTVEC(ioapic_intr78),
345 &IDTVEC(ioapic_intr79),
346 &IDTVEC(ioapic_intr80),
347 &IDTVEC(ioapic_intr81),
348 &IDTVEC(ioapic_intr82),
349 &IDTVEC(ioapic_intr83),
350 &IDTVEC(ioapic_intr84),
351 &IDTVEC(ioapic_intr85),
352 &IDTVEC(ioapic_intr86),
353 &IDTVEC(ioapic_intr87),
354 &IDTVEC(ioapic_intr88),
355 &IDTVEC(ioapic_intr89),
356 &IDTVEC(ioapic_intr90),
357 &IDTVEC(ioapic_intr91),
358 &IDTVEC(ioapic_intr92),
359 &IDTVEC(ioapic_intr93),
360 &IDTVEC(ioapic_intr94),
361 &IDTVEC(ioapic_intr95),
362 &IDTVEC(ioapic_intr96),
363 &IDTVEC(ioapic_intr97),
364 &IDTVEC(ioapic_intr98),
365 &IDTVEC(ioapic_intr99),
366 &IDTVEC(ioapic_intr100),
367 &IDTVEC(ioapic_intr101),
368 &IDTVEC(ioapic_intr102),
369 &IDTVEC(ioapic_intr103),
370 &IDTVEC(ioapic_intr104),
371 &IDTVEC(ioapic_intr105),
372 &IDTVEC(ioapic_intr106),
373 &IDTVEC(ioapic_intr107),
374 &IDTVEC(ioapic_intr108),
375 &IDTVEC(ioapic_intr109),
376 &IDTVEC(ioapic_intr110),
377 &IDTVEC(ioapic_intr111),
378 &IDTVEC(ioapic_intr112),
379 &IDTVEC(ioapic_intr113),
380 &IDTVEC(ioapic_intr114),
381 &IDTVEC(ioapic_intr115),
382 &IDTVEC(ioapic_intr116),
383 &IDTVEC(ioapic_intr117),
384 &IDTVEC(ioapic_intr118),
385 &IDTVEC(ioapic_intr119),
386 &IDTVEC(ioapic_intr120),
387 &IDTVEC(ioapic_intr121),
388 &IDTVEC(ioapic_intr122),
389 &IDTVEC(ioapic_intr123),
390 &IDTVEC(ioapic_intr124),
391 &IDTVEC(ioapic_intr125),
392 &IDTVEC(ioapic_intr126),
393 &IDTVEC(ioapic_intr127),
394 &IDTVEC(ioapic_intr128),
395 &IDTVEC(ioapic_intr129),
396 &IDTVEC(ioapic_intr130),
397 &IDTVEC(ioapic_intr131),
398 &IDTVEC(ioapic_intr132),
399 &IDTVEC(ioapic_intr133),
400 &IDTVEC(ioapic_intr134),
401 &IDTVEC(ioapic_intr135),
402 &IDTVEC(ioapic_intr136),
403 &IDTVEC(ioapic_intr137),
404 &IDTVEC(ioapic_intr138),
405 &IDTVEC(ioapic_intr139),
406 &IDTVEC(ioapic_intr140),
407 &IDTVEC(ioapic_intr141),
408 &IDTVEC(ioapic_intr142),
409 &IDTVEC(ioapic_intr143),
410 &IDTVEC(ioapic_intr144),
411 &IDTVEC(ioapic_intr145),
412 &IDTVEC(ioapic_intr146),
413 &IDTVEC(ioapic_intr147),
414 &IDTVEC(ioapic_intr148),
415 &IDTVEC(ioapic_intr149),
416 &IDTVEC(ioapic_intr150),
417 &IDTVEC(ioapic_intr151),
418 &IDTVEC(ioapic_intr152),
419 &IDTVEC(ioapic_intr153),
420 &IDTVEC(ioapic_intr154),
421 &IDTVEC(ioapic_intr155),
422 &IDTVEC(ioapic_intr156),
423 &IDTVEC(ioapic_intr157),
424 &IDTVEC(ioapic_intr158),
425 &IDTVEC(ioapic_intr159),
426 &IDTVEC(ioapic_intr160),
427 &IDTVEC(ioapic_intr161),
428 &IDTVEC(ioapic_intr162),
429 &IDTVEC(ioapic_intr163),
430 &IDTVEC(ioapic_intr164),
431 &IDTVEC(ioapic_intr165),
432 &IDTVEC(ioapic_intr166),
433 &IDTVEC(ioapic_intr167),
434 &IDTVEC(ioapic_intr168),
435 &IDTVEC(ioapic_intr169),
436 &IDTVEC(ioapic_intr170),
437 &IDTVEC(ioapic_intr171),
438 &IDTVEC(ioapic_intr172),
439 &IDTVEC(ioapic_intr173),
440 &IDTVEC(ioapic_intr174),
441 &IDTVEC(ioapic_intr175),
442 &IDTVEC(ioapic_intr176),
443 &IDTVEC(ioapic_intr177),
444 &IDTVEC(ioapic_intr178),
445 &IDTVEC(ioapic_intr179),
446 &IDTVEC(ioapic_intr180),
447 &IDTVEC(ioapic_intr181),
448 &IDTVEC(ioapic_intr182),
449 &IDTVEC(ioapic_intr183),
450 &IDTVEC(ioapic_intr184),
451 &IDTVEC(ioapic_intr185),
452 &IDTVEC(ioapic_intr186),
453 &IDTVEC(ioapic_intr187),
454 &IDTVEC(ioapic_intr188),
455 &IDTVEC(ioapic_intr189),
456 &IDTVEC(ioapic_intr190),
457 &IDTVEC(ioapic_intr191)
460 #define IOAPIC_HWI_SYSCALL (IDT_OFFSET_SYSCALL - IDT_OFFSET)
462 static struct ioapic_irqmap {
463 int im_type; /* IOAPIC_IMT_ */
464 enum intr_trigger im_trig;
465 enum intr_polarity im_pola;
468 uint32_t im_flags; /* IOAPIC_IMF_ */
469 } ioapic_irqmaps[MAXCPU][IOAPIC_HWI_VECTORS];
471 static struct lwkt_token ioapic_irqmap_tok =
472 LWKT_TOKEN_INITIALIZER(ioapic_irqmap_token);
474 #define IOAPIC_IMT_UNUSED 0
475 #define IOAPIC_IMT_RESERVED 1
476 #define IOAPIC_IMT_LEGACY 2
477 #define IOAPIC_IMT_SYSCALL 3
478 #define IOAPIC_IMT_SHADOW 4
479 #define IOAPIC_IMT_MSI 5
481 #define IOAPIC_IMT_ISHWI(map) ((map)->im_type != IOAPIC_IMT_RESERVED && \
482 (map)->im_type != IOAPIC_IMT_SYSCALL && \
483 (map)->im_type != IOAPIC_IMT_SHADOW)
485 #define IOAPIC_IMF_CONF 0x1
487 extern void IOAPIC_INTREN(int);
488 extern void IOAPIC_INTRDIS(int);
490 extern int imcr_present;
492 static void ioapic_abi_intr_enable(int);
493 static void ioapic_abi_intr_disable(int);
494 static void ioapic_abi_intr_setup(int, int);
495 static void ioapic_abi_intr_teardown(int);
496 static void ioapic_abi_intr_config(int,
497 enum intr_trigger, enum intr_polarity);
498 static int ioapic_abi_intr_cpuid(int);
500 static int ioapic_abi_msi_alloc(int [], int, int);
501 static void ioapic_abi_msi_release(const int [], int, int);
502 static void ioapic_abi_msi_map(int, uint64_t *, uint32_t *, int);
504 static void ioapic_abi_finalize(void);
505 static void ioapic_abi_cleanup(void);
506 static void ioapic_abi_setdefault(void);
507 static void ioapic_abi_stabilize(void);
508 static void ioapic_abi_initmap(void);
509 static void ioapic_abi_rman_setup(struct rman *);
511 static int ioapic_abi_gsi_cpuid(int, int);
513 struct machintr_abi MachIntrABI_IOAPIC = {
516 .intr_disable = ioapic_abi_intr_disable,
517 .intr_enable = ioapic_abi_intr_enable,
518 .intr_setup = ioapic_abi_intr_setup,
519 .intr_teardown = ioapic_abi_intr_teardown,
520 .intr_config = ioapic_abi_intr_config,
521 .intr_cpuid = ioapic_abi_intr_cpuid,
523 .msi_alloc = ioapic_abi_msi_alloc,
524 .msi_release = ioapic_abi_msi_release,
525 .msi_map = ioapic_abi_msi_map,
527 .finalize = ioapic_abi_finalize,
528 .cleanup = ioapic_abi_cleanup,
529 .setdefault = ioapic_abi_setdefault,
530 .stabilize = ioapic_abi_stabilize,
531 .initmap = ioapic_abi_initmap,
532 .rman_setup = ioapic_abi_rman_setup
535 static int ioapic_abi_extint_irq = -1;
536 static int ioapic_abi_legacy_irq_max;
537 static int ioapic_abi_gsi_balance;
538 static int ioapic_abi_msi_start; /* NOTE: for testing only */
540 struct ioapic_irqinfo ioapic_irqs[IOAPIC_HWI_VECTORS];
543 ioapic_abi_intr_enable(int irq)
545 const struct ioapic_irqmap *map;
547 KASSERT(irq >= 0 && irq < IOAPIC_HWI_VECTORS,
548 ("ioapic enable, invalid irq %d\n", irq));
550 map = &ioapic_irqmaps[mycpuid][irq];
551 KASSERT(IOAPIC_IMT_ISHWI(map),
552 ("ioapic enable, not hwi irq %d, type %d, cpu%d\n",
553 irq, map->im_type, mycpuid));
554 if (map->im_type != IOAPIC_IMT_LEGACY)
561 ioapic_abi_intr_disable(int irq)
563 const struct ioapic_irqmap *map;
565 KASSERT(irq >= 0 && irq < IOAPIC_HWI_VECTORS,
566 ("ioapic disable, invalid irq %d\n", irq));
568 map = &ioapic_irqmaps[mycpuid][irq];
569 KASSERT(IOAPIC_IMT_ISHWI(map),
570 ("ioapic disable, not hwi irq %d, type %d, cpu%d\n",
571 irq, map->im_type, mycpuid));
572 if (map->im_type != IOAPIC_IMT_LEGACY)
579 ioapic_abi_finalize(void)
581 KKASSERT(MachIntrABI.type == MACHINTR_IOAPIC);
582 KKASSERT(ioapic_enable);
585 * If an IMCR is present, program bit 0 to disconnect the 8259
589 outb(0x22, 0x70); /* select IMCR */
590 outb(0x23, 0x01); /* disconnect 8259 */
595 * This routine is called after physical interrupts are enabled but before
596 * the critical section is released. We need to clean out any interrupts
597 * that had already been posted to the cpu.
600 ioapic_abi_cleanup(void)
602 bzero(mdcpu->gd_ipending, sizeof(mdcpu->gd_ipending));
605 /* Must never be called */
607 ioapic_abi_stabilize(void)
609 panic("ioapic_stabilize() is called\n");
613 ioapic_abi_intr_setup(int intr, int flags)
615 const struct ioapic_irqmap *map;
620 KASSERT(intr >= 0 && intr < IOAPIC_HWI_VECTORS,
621 ("ioapic setup, invalid irq %d\n", intr));
623 map = &ioapic_irqmaps[mycpuid][intr];
624 KASSERT(IOAPIC_IMT_ISHWI(map),
625 ("ioapic setup, not hwi irq %d, type %d, cpu%d",
626 intr, map->im_type, mycpuid));
627 if (map->im_type != IOAPIC_IMT_LEGACY)
630 KASSERT(ioapic_irqs[intr].io_addr != NULL,
631 ("ioapic setup, no GSI information, irq %d\n", intr));
636 vector = IDT_OFFSET + intr;
639 * Now reprogram the vector in the IO APIC. In order to avoid
640 * losing an EOI for a level interrupt, which is vector based,
641 * make sure that the IO APIC is programmed for edge-triggering
642 * first, then reprogrammed with the new vector. This should
647 select = ioapic_irqs[intr].io_idx;
648 value = ioapic_read(ioapic_irqs[intr].io_addr, select);
649 value |= IOART_INTMSET;
651 ioapic_write(ioapic_irqs[intr].io_addr, select,
652 (value & ~APIC_TRIGMOD_MASK));
653 ioapic_write(ioapic_irqs[intr].io_addr, select,
654 (value & ~IOART_INTVEC) | vector);
664 ioapic_abi_intr_teardown(int intr)
666 const struct ioapic_irqmap *map;
671 KASSERT(intr >= 0 && intr < IOAPIC_HWI_VECTORS,
672 ("ioapic teardown, invalid irq %d\n", intr));
674 map = &ioapic_irqmaps[mycpuid][intr];
675 KASSERT(IOAPIC_IMT_ISHWI(map),
676 ("ioapic teardown, not hwi irq %d, type %d, cpu%d",
677 intr, map->im_type, mycpuid));
678 if (map->im_type != IOAPIC_IMT_LEGACY)
681 KASSERT(ioapic_irqs[intr].io_addr != NULL,
682 ("ioapic teardown, no GSI information, irq %d\n", intr));
688 * Teardown an interrupt vector. The vector should already be
689 * installed in the cpu's IDT, but make sure.
691 IOAPIC_INTRDIS(intr);
693 vector = IDT_OFFSET + intr;
696 * In order to avoid losing an EOI for a level interrupt, which
697 * is vector based, make sure that the IO APIC is programmed for
698 * edge-triggering first, then reprogrammed with the new vector.
699 * This should clear the IRR bit.
703 select = ioapic_irqs[intr].io_idx;
704 value = ioapic_read(ioapic_irqs[intr].io_addr, select);
706 ioapic_write(ioapic_irqs[intr].io_addr, select,
707 (value & ~APIC_TRIGMOD_MASK));
708 ioapic_write(ioapic_irqs[intr].io_addr, select,
709 (value & ~IOART_INTVEC) | vector);
717 ioapic_abi_setdefault(void)
721 for (intr = 0; intr < IOAPIC_HWI_VECTORS; ++intr) {
722 if (intr == IOAPIC_HWI_SYSCALL)
724 setidt(IDT_OFFSET + intr, ioapic_intr[intr], SDT_SYS386IGT,
725 SEL_KPL, GSEL(GCODE_SEL, SEL_KPL));
730 ioapic_abi_initmap(void)
734 kgetenv_int("hw.ioapic.gsi.balance", &ioapic_abi_gsi_balance);
736 kgetenv_int("hw.ioapic.msi_start", &ioapic_abi_msi_start);
737 ioapic_abi_msi_start &= ~0x1f; /* MUST be 32 aligned */
740 * NOTE: ncpus is not ready yet
742 for (cpu = 0; cpu < MAXCPU; ++cpu) {
745 for (i = 0; i < IOAPIC_HWI_VECTORS; ++i) {
746 ioapic_irqmaps[cpu][i].im_gsi = -1;
747 ioapic_irqmaps[cpu][i].im_msi_base = -1;
749 ioapic_irqmaps[cpu][IOAPIC_HWI_SYSCALL].im_type =
755 ioapic_abi_set_irqmap(int irq, int gsi, enum intr_trigger trig,
756 enum intr_polarity pola)
758 struct ioapic_irqinfo *info;
759 struct ioapic_irqmap *map;
763 KKASSERT(trig == INTR_TRIGGER_EDGE || trig == INTR_TRIGGER_LEVEL);
764 KKASSERT(pola == INTR_POLARITY_HIGH || pola == INTR_POLARITY_LOW);
766 KKASSERT(irq >= 0 && irq < IOAPIC_HWI_VECTORS);
767 if (irq > ioapic_abi_legacy_irq_max)
768 ioapic_abi_legacy_irq_max = irq;
770 cpuid = ioapic_abi_gsi_cpuid(irq, gsi);
772 map = &ioapic_irqmaps[cpuid][irq];
774 KKASSERT(map->im_type == IOAPIC_IMT_UNUSED);
775 map->im_type = IOAPIC_IMT_LEGACY;
782 kprintf("IOAPIC: irq %d -> gsi %d %s/%s\n",
784 intr_str_trigger(map->im_trig),
785 intr_str_polarity(map->im_pola));
788 pin = ioapic_gsi_pin(map->im_gsi);
789 ioaddr = ioapic_gsi_ioaddr(map->im_gsi);
791 info = &ioapic_irqs[irq];
795 info->io_addr = ioaddr;
796 info->io_idx = IOAPIC_REDTBL + (2 * pin);
797 info->io_flags = IOAPIC_IRQI_FLAG_MASKED;
798 if (map->im_trig == INTR_TRIGGER_LEVEL)
799 info->io_flags |= IOAPIC_IRQI_FLAG_LEVEL;
801 ioapic_pin_setup(ioaddr, pin, IDT_OFFSET + irq,
802 map->im_trig, map->im_pola, cpuid);
808 ioapic_abi_fixup_irqmap(void)
812 ioapic_abi_legacy_irq_max += 1;
814 kprintf("IOAPIC: legacy irq max %d\n",
815 ioapic_abi_legacy_irq_max);
818 for (cpu = 0; cpu < ncpus; ++cpu) {
821 for (i = 0; i < ioapic_abi_legacy_irq_max; ++i) {
822 struct ioapic_irqmap *map = &ioapic_irqmaps[cpu][i];
824 if (map->im_type == IOAPIC_IMT_UNUSED) {
825 map->im_type = IOAPIC_IMT_RESERVED;
828 "cpu%d irq %d reserved\n", cpu, i);
836 ioapic_abi_find_gsi(int gsi, enum intr_trigger trig, enum intr_polarity pola)
840 KKASSERT(trig == INTR_TRIGGER_EDGE || trig == INTR_TRIGGER_LEVEL);
841 KKASSERT(pola == INTR_POLARITY_HIGH || pola == INTR_POLARITY_LOW);
843 for (cpu = 0; cpu < ncpus; ++cpu) {
846 for (irq = 0; irq < ioapic_abi_legacy_irq_max; ++irq) {
847 const struct ioapic_irqmap *map =
848 &ioapic_irqmaps[cpu][irq];
850 if (map->im_gsi == gsi) {
851 KKASSERT(map->im_type == IOAPIC_IMT_LEGACY);
853 if (map->im_flags & IOAPIC_IMF_CONF) {
854 if (map->im_trig != trig ||
855 map->im_pola != pola)
866 ioapic_abi_find_irq(int irq, enum intr_trigger trig, enum intr_polarity pola)
870 KKASSERT(trig == INTR_TRIGGER_EDGE || trig == INTR_TRIGGER_LEVEL);
871 KKASSERT(pola == INTR_POLARITY_HIGH || pola == INTR_POLARITY_LOW);
873 if (irq < 0 || irq >= ioapic_abi_legacy_irq_max)
876 for (cpu = 0; cpu < ncpus; ++cpu) {
877 const struct ioapic_irqmap *map = &ioapic_irqmaps[cpu][irq];
879 if (map->im_type == IOAPIC_IMT_LEGACY) {
880 if (map->im_flags & IOAPIC_IMF_CONF) {
881 if (map->im_trig != trig ||
882 map->im_pola != pola)
892 ioapic_abi_intr_config(int irq, enum intr_trigger trig, enum intr_polarity pola)
894 struct ioapic_irqinfo *info;
895 struct ioapic_irqmap *map = NULL;
899 KKASSERT(trig == INTR_TRIGGER_EDGE || trig == INTR_TRIGGER_LEVEL);
900 KKASSERT(pola == INTR_POLARITY_HIGH || pola == INTR_POLARITY_LOW);
902 KKASSERT(irq >= 0 && irq < ioapic_abi_legacy_irq_max);
903 for (cpuid = 0; cpuid < ncpus; ++cpuid) {
904 map = &ioapic_irqmaps[cpuid][irq];
905 if (map->im_type == IOAPIC_IMT_LEGACY)
908 KKASSERT(cpuid < ncpus);
911 if (map->im_flags & IOAPIC_IMF_CONF) {
912 if (trig != map->im_trig) {
913 panic("ioapic_intr_config: trig %s -> %s\n",
914 intr_str_trigger(map->im_trig),
915 intr_str_trigger(trig));
917 if (pola != map->im_pola) {
918 panic("ioapic_intr_config: pola %s -> %s\n",
919 intr_str_polarity(map->im_pola),
920 intr_str_polarity(pola));
925 map->im_flags |= IOAPIC_IMF_CONF;
927 if (trig == map->im_trig && pola == map->im_pola)
931 kprintf("IOAPIC: irq %d, gsi %d %s/%s -> %s/%s\n",
933 intr_str_trigger(map->im_trig),
934 intr_str_polarity(map->im_pola),
935 intr_str_trigger(trig),
936 intr_str_polarity(pola));
941 pin = ioapic_gsi_pin(map->im_gsi);
942 ioaddr = ioapic_gsi_ioaddr(map->im_gsi);
944 info = &ioapic_irqs[irq];
948 info->io_flags &= ~IOAPIC_IRQI_FLAG_LEVEL;
949 if (map->im_trig == INTR_TRIGGER_LEVEL)
950 info->io_flags |= IOAPIC_IRQI_FLAG_LEVEL;
952 ioapic_pin_setup(ioaddr, pin, IDT_OFFSET + irq,
953 map->im_trig, map->im_pola, cpuid);
959 ioapic_abi_extint_irqmap(int irq)
961 struct ioapic_irqinfo *info;
962 struct ioapic_irqmap *map;
966 /* XXX only irq0 is allowed */
969 vec = IDT_OFFSET + irq;
971 if (ioapic_abi_extint_irq == irq)
973 else if (ioapic_abi_extint_irq >= 0)
976 error = icu_ioapic_extint(irq, vec);
980 /* ExtINT is always targeted to cpu0 */
981 map = &ioapic_irqmaps[0][irq];
983 KKASSERT(map->im_type == IOAPIC_IMT_RESERVED ||
984 map->im_type == IOAPIC_IMT_LEGACY);
985 if (map->im_type == IOAPIC_IMT_LEGACY) {
986 if (map->im_flags & IOAPIC_IMF_CONF)
989 ioapic_abi_extint_irq = irq;
991 map->im_type = IOAPIC_IMT_LEGACY;
992 map->im_trig = INTR_TRIGGER_EDGE;
993 map->im_pola = INTR_POLARITY_HIGH;
994 map->im_flags = IOAPIC_IMF_CONF;
996 map->im_gsi = ioapic_extpin_gsi();
997 KKASSERT(map->im_gsi >= 0);
1000 kprintf("IOAPIC: irq %d -> extint gsi %d %s/%s\n",
1002 intr_str_trigger(map->im_trig),
1003 intr_str_polarity(map->im_pola));
1006 pin = ioapic_gsi_pin(map->im_gsi);
1007 ioaddr = ioapic_gsi_ioaddr(map->im_gsi);
1009 info = &ioapic_irqs[irq];
1013 info->io_addr = ioaddr;
1014 info->io_idx = IOAPIC_REDTBL + (2 * pin);
1015 info->io_flags = IOAPIC_IRQI_FLAG_MASKED;
1017 ioapic_extpin_setup(ioaddr, pin, vec);
1025 ioapic_abi_intr_cpuid(int irq)
1027 const struct ioapic_irqmap *map = NULL;
1030 KKASSERT(irq >= 0 && irq < ioapic_abi_legacy_irq_max);
1032 for (cpuid = 0; cpuid < ncpus; ++cpuid) {
1033 map = &ioapic_irqmaps[cpuid][irq];
1034 if (map->im_type == IOAPIC_IMT_LEGACY)
1038 /* XXX some drivers tries to peek at reserved IRQs */
1039 for (cpuid = 0; cpuid < ncpus; ++cpuid) {
1040 map = &ioapic_irqmaps[cpuid][irq];
1041 KKASSERT(map->im_type == IOAPIC_IMT_RESERVED);
1047 ioapic_abi_gsi_cpuid(int irq, int gsi)
1054 if (irq == 0 || gsi == 0) {
1056 kprintf("IOAPIC: irq %d, gsi %d -> cpu0 (0)\n",
1062 if (irq == acpi_sci_irqno()) {
1064 kprintf("IOAPIC: irq %d, gsi %d -> cpu0 (sci)\n",
1070 ksnprintf(envpath, sizeof(envpath), "hw.ioapic.gsi.%d.cpu", gsi);
1071 kgetenv_int(envpath, &cpuid);
1074 if (!ioapic_abi_gsi_balance) {
1076 kprintf("IOAPIC: irq %d, gsi %d -> cpu0 "
1077 "(fixed)\n", irq, gsi);
1082 cpuid = gsi % ncpus;
1084 kprintf("IOAPIC: irq %d, gsi %d -> cpu%d (auto)\n",
1087 } else if (cpuid >= ncpus) {
1090 kprintf("IOAPIC: irq %d, gsi %d -> cpu%d (fixup)\n",
1095 kprintf("IOAPIC: irq %d, gsi %d -> cpu%d (user)\n",
1103 ioapic_abi_rman_setup(struct rman *rm)
1107 KASSERT(rm->rm_cpuid >= 0 && rm->rm_cpuid < MAXCPU,
1108 ("invalid rman cpuid %d", rm->rm_cpuid));
1111 for (i = 0; i < IOAPIC_HWI_VECTORS; ++i) {
1112 const struct ioapic_irqmap *map =
1113 &ioapic_irqmaps[rm->rm_cpuid][i];
1116 if (IOAPIC_IMT_ISHWI(map))
1119 if (IOAPIC_IMT_ISHWI(map)) {
1124 kprintf("IOAPIC: rman cpu%d %d - %d\n",
1125 rm->rm_cpuid, start, end);
1127 if (rman_manage_region(rm, start, end)) {
1128 panic("rman_manage_region"
1129 "(cpu%d %d - %d)", rm->rm_cpuid,
1139 kprintf("IOAPIC: rman cpu%d %d - %d\n",
1140 rm->rm_cpuid, start, end);
1142 if (rman_manage_region(rm, start, end)) {
1143 panic("rman_manage_region(cpu%d %d - %d)",
1144 rm->rm_cpuid, start, end);
1150 ioapic_abi_msi_alloc(int intrs[], int count, int cpuid)
1154 KASSERT(cpuid >= 0 && cpuid < ncpus,
1155 ("invalid cpuid %d", cpuid));
1157 KASSERT(count > 0 && count <= 32, ("invalid count %d\n", count));
1158 KASSERT((count & (count - 1)) == 0,
1159 ("count %d is not power of 2\n", count));
1161 lwkt_gettoken(&ioapic_irqmap_tok);
1165 * Since IDT_OFFSET is 32, which is the maximum valid 'count',
1166 * we do not need to find out the first properly aligned
1171 for (i = ioapic_abi_msi_start; i < IOAPIC_HWI_VECTORS; i += count) {
1174 if (ioapic_irqmaps[cpuid][i].im_type != IOAPIC_IMT_UNUSED)
1177 for (j = 1; j < count; ++j) {
1178 if (ioapic_irqmaps[cpuid][i + j].im_type !=
1185 for (j = 0; j < count; ++j) {
1186 int intr = i + j, cpu;
1188 for (cpu = 0; cpu < ncpus; ++cpu) {
1189 struct ioapic_irqmap *map;
1191 map = &ioapic_irqmaps[cpu][intr];
1192 KASSERT(map->im_msi_base < 0,
1193 ("intr %d cpu%d, stale MSI-base %d\n",
1194 intr, cpu, map->im_msi_base));
1195 KASSERT(map->im_type == IOAPIC_IMT_UNUSED,
1196 ("intr %d cpu%d, already allocated\n",
1200 map->im_type = IOAPIC_IMT_MSI;
1201 map->im_msi_base = i;
1203 map->im_type = IOAPIC_IMT_SHADOW;
1211 kprintf("alloc MSI intr %d on cpu%d\n",
1219 lwkt_reltoken(&ioapic_irqmap_tok);
1225 ioapic_abi_msi_release(const int intrs[], int count, int cpuid)
1227 int i, msi_base = -1, intr_next = -1, mask;
1229 KASSERT(cpuid >= 0 && cpuid < ncpus,
1230 ("invalid cpuid %d", cpuid));
1232 KASSERT(count > 0 && count <= 32, ("invalid count %d\n", count));
1235 KASSERT((count & mask) == 0, ("count %d is not power of 2\n", count));
1237 lwkt_gettoken(&ioapic_irqmap_tok);
1239 for (i = 0; i < count; ++i) {
1240 int intr = intrs[i], cpu;
1242 KASSERT(intr >= 0 && intr < IOAPIC_HWI_VECTORS,
1243 ("invalid intr %d\n", intr));
1245 for (cpu = 0; cpu < ncpus; ++cpu) {
1246 struct ioapic_irqmap *map;
1248 map = &ioapic_irqmaps[cpu][intr];
1251 KASSERT(map->im_type == IOAPIC_IMT_MSI,
1252 ("try release non-MSI intr %d cpu%d, "
1253 "type %d\n", intr, cpu, map->im_type));
1254 KASSERT(map->im_msi_base >= 0 &&
1255 map->im_msi_base <= intr,
1256 ("intr %d cpu%d, invalid MSI-base %d\n",
1257 intr, cpu, map->im_msi_base));
1258 KASSERT((map->im_msi_base & mask) == 0,
1259 ("intr %d cpu%d, MSI-base %d is "
1260 "not proper aligned %d\n",
1261 intr, cpu, map->im_msi_base, count));
1264 msi_base = map->im_msi_base;
1266 KASSERT(map->im_msi_base == msi_base,
1268 "inconsistent MSI-base, "
1271 msi_base, map->im_msi_base));
1273 map->im_msi_base = -1;
1275 KASSERT(map->im_type == IOAPIC_IMT_SHADOW,
1276 ("try release non-MSIsh intr %d cpu%d, "
1277 "type %d\n", intr, cpu, map->im_type));
1278 KASSERT(map->im_msi_base < 0,
1279 ("intr %d cpu%d, invalid MSIsh-base %d\n",
1280 intr, cpu, map->im_msi_base));
1282 map->im_type = IOAPIC_IMT_UNUSED;
1285 if (intr_next < intr)
1289 kprintf("release MSI intr %d on cpu%d\n", intr, cpuid);
1292 KKASSERT(intr_next > 0);
1293 KKASSERT(msi_base >= 0);
1296 if (intr_next < IOAPIC_HWI_VECTORS) {
1299 for (cpu = 0; cpu < ncpus; ++cpu) {
1300 const struct ioapic_irqmap *map =
1301 &ioapic_irqmaps[cpu][intr_next];
1303 if (map->im_type == IOAPIC_IMT_MSI) {
1304 KASSERT(map->im_msi_base != msi_base,
1305 ("more than %d MSI was allocated\n", count));
1310 lwkt_reltoken(&ioapic_irqmap_tok);
1314 ioapic_abi_msi_map(int intr, uint64_t *addr, uint32_t *data, int cpuid)
1316 const struct ioapic_irqmap *map;
1318 KASSERT(cpuid >= 0 && cpuid < ncpus,
1319 ("invalid cpuid %d", cpuid));
1321 KASSERT(intr >= 0 && intr < IOAPIC_HWI_VECTORS,
1322 ("invalid intr %d\n", intr));
1324 lwkt_gettoken(&ioapic_irqmap_tok);
1326 map = &ioapic_irqmaps[cpuid][intr];
1327 KASSERT(map->im_type == IOAPIC_IMT_MSI,
1328 ("try map non-MSI intr %d, type %d\n", intr, map->im_type));
1329 KASSERT(map->im_msi_base >= 0 && map->im_msi_base <= intr,
1330 ("intr %d, invalid MSI-base %d\n", intr, map->im_msi_base));
1332 msi_map(map->im_msi_base, addr, data, cpuid);
1335 kprintf("map MSI intr %d on cpu%d\n", intr, cpuid);
1337 lwkt_reltoken(&ioapic_irqmap_tok);