FreeBSD/Linux Kernel Cross Reference
sys/dev/amr/amr_pci.c
1 /*-
2 * Copyright (c) 1999,2000 Michael Smith
3 * Copyright (c) 2000 BSDi
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27 /*-
28 * Copyright (c) 2002 Eric Moore
29 * Copyright (c) 2002, 2004 LSI Logic Corporation
30 * All rights reserved.
31 *
32 * Redistribution and use in source and binary forms, with or without
33 * modification, are permitted provided that the following conditions
34 * are met:
35 * 1. Redistributions of source code must retain the above copyright
36 * notice, this list of conditions and the following disclaimer.
37 * 2. Redistributions in binary form must reproduce the above copyright
38 * notice, this list of conditions and the following disclaimer in the
39 * documentation and/or other materials provided with the distribution.
40 * 3. The party using or redistributing the source code and binary forms
41 * agrees to the disclaimer below and the terms and conditions set forth
42 * herein.
43 *
44 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
45 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
46 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
47 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
48 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
49 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
50 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
51 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
52 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
53 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
54 * SUCH DAMAGE.
55 */
56
57 #include <sys/cdefs.h>
58 __FBSDID("$FreeBSD: releng/6.0/sys/dev/amr/amr_pci.c 146734 2005-05-29 04:42:30Z nyan $");
59
60 #include <sys/param.h>
61 #include <sys/systm.h>
62 #include <sys/kernel.h>
63 #include <sys/module.h>
64
65 #include <dev/amr/amr_compat.h>
66 #include <sys/bus.h>
67 #include <sys/conf.h>
68
69 #include <machine/bus.h>
70 #include <machine/resource.h>
71 #include <sys/rman.h>
72
73 #include <dev/pci/pcireg.h>
74 #include <dev/pci/pcivar.h>
75
76 #include <dev/amr/amrio.h>
77 #include <dev/amr/amrreg.h>
78 #include <dev/amr/amrvar.h>
79
80 static int amr_pci_probe(device_t dev);
81 static int amr_pci_attach(device_t dev);
82 static int amr_pci_detach(device_t dev);
83 static int amr_pci_shutdown(device_t dev);
84 static int amr_pci_suspend(device_t dev);
85 static int amr_pci_resume(device_t dev);
86 static void amr_pci_intr(void *arg);
87 static void amr_pci_free(struct amr_softc *sc);
88 static void amr_sglist_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error);
89 static int amr_sglist_map(struct amr_softc *sc);
90 static void amr_setup_mbox_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error);
91 static int amr_setup_mbox(struct amr_softc *sc);
92
93 static device_method_t amr_methods[] = {
94 /* Device interface */
95 DEVMETHOD(device_probe, amr_pci_probe),
96 DEVMETHOD(device_attach, amr_pci_attach),
97 DEVMETHOD(device_detach, amr_pci_detach),
98 DEVMETHOD(device_shutdown, amr_pci_shutdown),
99 DEVMETHOD(device_suspend, amr_pci_suspend),
100 DEVMETHOD(device_resume, amr_pci_resume),
101
102 DEVMETHOD(bus_print_child, bus_generic_print_child),
103 DEVMETHOD(bus_driver_added, bus_generic_driver_added),
104 { 0, 0 }
105 };
106
107 static driver_t amr_pci_driver = {
108 "amr",
109 amr_methods,
110 sizeof(struct amr_softc)
111 };
112
113 static devclass_t amr_devclass;
114 DRIVER_MODULE(amr, pci, amr_pci_driver, amr_devclass, 0, 0);
115
116 static struct
117 {
118 int vendor;
119 int device;
120 int flag;
121 #define PROBE_SIGNATURE (1<<0)
122 } amr_device_ids[] = {
123 {0x101e, 0x9010, 0},
124 {0x101e, 0x9060, 0},
125 {0x8086, 0x1960, PROBE_SIGNATURE},/* generic i960RD, check for signature */
126 {0x101e, 0x1960, 0},
127 {0x1000, 0x1960, PROBE_SIGNATURE},
128 {0x1000, 0x0407, 0},
129 {0x1000, 0x0408, 0},
130 {0x1000, 0x0409, 0},
131 {0x1028, 0x000e, PROBE_SIGNATURE}, /* perc4/di i960 */
132 {0x1028, 0x000f, 0}, /* perc4/di Verde*/
133 {0x1028, 0x0013, 0}, /* perc4/di */
134 {0, 0, 0}
135 };
136
137 static int
138 amr_pci_probe(device_t dev)
139 {
140 int i, sig;
141
142 debug_called(1);
143
144 for (i = 0; amr_device_ids[i].vendor != 0; i++) {
145 if ((pci_get_vendor(dev) == amr_device_ids[i].vendor) &&
146 (pci_get_device(dev) == amr_device_ids[i].device)) {
147
148 /* do we need to test for a signature? */
149 if (amr_device_ids[i].flag & PROBE_SIGNATURE) {
150 sig = pci_read_config(dev, AMR_CFG_SIG, 2);
151 if ((sig != AMR_SIGNATURE_1) && (sig != AMR_SIGNATURE_2))
152 continue;
153 }
154 device_set_desc(dev, LSI_DESC_PCI);
155 return(BUS_PROBE_DEFAULT);
156 }
157 }
158 return(ENXIO);
159 }
160
161 static int
162 amr_pci_attach(device_t dev)
163 {
164 struct amr_softc *sc;
165 int rid, rtype, error;
166 u_int32_t command;
167
168 debug_called(1);
169
170 /*
171 * Initialise softc.
172 */
173 sc = device_get_softc(dev);
174 bzero(sc, sizeof(*sc));
175 sc->amr_dev = dev;
176 mtx_init(&sc->amr_io_lock, "AMR IO Lock", NULL, MTX_DEF);
177
178 /* assume failure is 'not configured' */
179 error = ENXIO;
180
181 /*
182 * Determine board type.
183 */
184 command = pci_read_config(dev, PCIR_COMMAND, 1);
185 if ((pci_get_device(dev) == 0x1960) || (pci_get_device(dev) == 0x0407) ||
186 (pci_get_device(dev) == 0x0408) || (pci_get_device(dev) == 0x0409) ||
187 (pci_get_device(dev) == 0x000e) || (pci_get_device(dev) == 0x000f) ||
188 (pci_get_device(dev) == 0x0013)) {
189 /*
190 * Make sure we are going to be able to talk to this board.
191 */
192 if ((command & PCIM_CMD_MEMEN) == 0) {
193 device_printf(dev, "memory window not available\n");
194 goto out;
195 }
196 sc->amr_type |= AMR_TYPE_QUARTZ;
197
198 } else {
199 /*
200 * Make sure we are going to be able to talk to this board.
201 */
202 if ((command & PCIM_CMD_PORTEN) == 0) {
203 device_printf(dev, "I/O window not available\n");
204 goto out;
205 }
206 }
207
208 /* force the busmaster enable bit on */
209 if (!(command & PCIM_CMD_BUSMASTEREN)) {
210 device_printf(dev, "busmaster bit not set, enabling\n");
211 command |= PCIM_CMD_BUSMASTEREN;
212 pci_write_config(dev, PCIR_COMMAND, command, 2);
213 }
214
215 /*
216 * Allocate the PCI register window.
217 */
218 rid = PCIR_BAR(0);
219 rtype = AMR_IS_QUARTZ(sc) ? SYS_RES_MEMORY : SYS_RES_IOPORT;
220 sc->amr_reg = bus_alloc_resource_any(dev, rtype, &rid, RF_ACTIVE);
221 if (sc->amr_reg == NULL) {
222 device_printf(sc->amr_dev, "can't allocate register window\n");
223 goto out;
224 }
225 sc->amr_btag = rman_get_bustag(sc->amr_reg);
226 sc->amr_bhandle = rman_get_bushandle(sc->amr_reg);
227
228 /*
229 * Allocate and connect our interrupt.
230 */
231 rid = 0;
232 sc->amr_irq = bus_alloc_resource_any(sc->amr_dev, SYS_RES_IRQ, &rid,
233 RF_SHAREABLE | RF_ACTIVE);
234 if (sc->amr_irq == NULL) {
235 device_printf(sc->amr_dev, "can't allocate interrupt\n");
236 goto out;
237 }
238 if (bus_setup_intr(sc->amr_dev, sc->amr_irq, INTR_TYPE_BIO | INTR_ENTROPY | INTR_MPSAFE, amr_pci_intr, sc, &sc->amr_intr)) {
239 device_printf(sc->amr_dev, "can't set up interrupt\n");
240 goto out;
241 }
242
243 debug(2, "interrupt attached");
244
245 /* assume failure is 'out of memory' */
246 error = ENOMEM;
247
248 /*
249 * Allocate the parent bus DMA tag appropriate for PCI.
250 */
251 if (bus_dma_tag_create(NULL, /* parent */
252 1, 0, /* alignment, boundary */
253 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
254 BUS_SPACE_MAXADDR, /* highaddr */
255 NULL, NULL, /* filter, filterarg */
256 MAXBSIZE, AMR_NSEG, /* maxsize, nsegments */
257 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
258 0, /* flags */
259 NULL, NULL, /* lockfunc, lockarg */
260 &sc->amr_parent_dmat)) {
261 device_printf(dev, "can't allocate parent DMA tag\n");
262 goto out;
263 }
264
265 /*
266 * Create DMA tag for mapping buffers into controller-addressable space.
267 */
268 if (bus_dma_tag_create(sc->amr_parent_dmat, /* parent */
269 1, 0, /* alignment, boundary */
270 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
271 BUS_SPACE_MAXADDR, /* highaddr */
272 NULL, NULL, /* filter, filterarg */
273 MAXBSIZE, AMR_NSEG, /* maxsize, nsegments */
274 MAXBSIZE, /* maxsegsize */
275 BUS_DMA_ALLOCNOW, /* flags */
276 busdma_lock_mutex, &sc->amr_io_lock, /* lockfunc, lockarg */
277 &sc->amr_buffer_dmat)) {
278 device_printf(sc->amr_dev, "can't allocate buffer DMA tag\n");
279 goto out;
280 }
281
282 debug(2, "dma tag done");
283
284 /*
285 * Allocate and set up mailbox in a bus-visible fashion.
286 */
287 if ((error = amr_setup_mbox(sc)) != 0)
288 goto out;
289
290 debug(2, "mailbox setup");
291
292 /*
293 * Build the scatter/gather buffers.
294 */
295 if (amr_sglist_map(sc))
296 goto out;
297
298 debug(2, "s/g list mapped");
299
300 /*
301 * Do bus-independant initialisation, bring controller online.
302 */
303 error = amr_attach(sc);
304
305 out:
306 if (error)
307 amr_pci_free(sc);
308 return(error);
309 }
310
311 /********************************************************************************
312 * Disconnect from the controller completely, in preparation for unload.
313 */
314 static int
315 amr_pci_detach(device_t dev)
316 {
317 struct amr_softc *sc = device_get_softc(dev);
318 int error;
319
320 debug_called(1);
321
322 if (sc->amr_state & AMR_STATE_OPEN)
323 return(EBUSY);
324
325 if ((error = amr_pci_shutdown(dev)))
326 return(error);
327
328 amr_pci_free(sc);
329
330 return(0);
331 }
332
333 /********************************************************************************
334 * Bring the controller down to a dormant state and detach all child devices.
335 *
336 * This function is called before detach, system shutdown, or before performing
337 * an operation which may add or delete system disks. (Call amr_startup to
338 * resume normal operation.)
339 *
340 * Note that we can assume that the bioq on the controller is empty, as we won't
341 * allow shutdown if any device is open.
342 */
343 static int
344 amr_pci_shutdown(device_t dev)
345 {
346 struct amr_softc *sc = device_get_softc(dev);
347 int i,error,s;
348
349 debug_called(1);
350
351 /* mark ourselves as in-shutdown */
352 sc->amr_state |= AMR_STATE_SHUTDOWN;
353
354
355 /* flush controller */
356 device_printf(sc->amr_dev, "flushing cache...");
357 printf("%s\n", amr_flush(sc) ? "failed" : "done");
358
359 s = splbio();
360 error = 0;
361
362 /* delete all our child devices */
363 for(i = 0 ; i < AMR_MAXLD; i++) {
364 if( sc->amr_drive[i].al_disk != 0) {
365 if((error = device_delete_child(sc->amr_dev,sc->amr_drive[i].al_disk)) != 0)
366 goto shutdown_out;
367 sc->amr_drive[i].al_disk = 0;
368 }
369 }
370
371 /* XXX disable interrupts? */
372
373 shutdown_out:
374 splx(s);
375 return(error);
376 }
377
378 /********************************************************************************
379 * Bring the controller to a quiescent state, ready for system suspend.
380 */
381 static int
382 amr_pci_suspend(device_t dev)
383 {
384 struct amr_softc *sc = device_get_softc(dev);
385
386 debug_called(1);
387
388 sc->amr_state |= AMR_STATE_SUSPEND;
389
390 /* flush controller */
391 device_printf(sc->amr_dev, "flushing cache...");
392 printf("%s\n", amr_flush(sc) ? "failed" : "done");
393
394 /* XXX disable interrupts? */
395
396 return(0);
397 }
398
399 /********************************************************************************
400 * Bring the controller back to a state ready for operation.
401 */
402 static int
403 amr_pci_resume(device_t dev)
404 {
405 struct amr_softc *sc = device_get_softc(dev);
406
407 debug_called(1);
408
409 sc->amr_state &= ~AMR_STATE_SUSPEND;
410
411 /* XXX enable interrupts? */
412
413 return(0);
414 }
415
416 /*******************************************************************************
417 * Take an interrupt, or be poked by other code to look for interrupt-worthy
418 * status.
419 */
420 static void
421 amr_pci_intr(void *arg)
422 {
423 struct amr_softc *sc = (struct amr_softc *)arg;
424
425 debug_called(2);
426
427 /* collect finished commands, queue anything waiting */
428 mtx_lock(&sc->amr_io_lock);
429 amr_done(sc);
430 mtx_unlock(&sc->amr_io_lock);
431 }
432
433 /********************************************************************************
434 * Free all of the resources associated with (sc)
435 *
436 * Should not be called if the controller is active.
437 */
438 static void
439 amr_pci_free(struct amr_softc *sc)
440 {
441 u_int8_t *p;
442
443 debug_called(1);
444
445 amr_free(sc);
446
447 /* destroy data-transfer DMA tag */
448 if (sc->amr_buffer_dmat)
449 bus_dma_tag_destroy(sc->amr_buffer_dmat);
450
451 /* free and destroy DMA memory and tag for s/g lists */
452 if (sc->amr_sgtable)
453 bus_dmamem_free(sc->amr_sg_dmat, sc->amr_sgtable, sc->amr_sg_dmamap);
454 if (sc->amr_sg_dmat)
455 bus_dma_tag_destroy(sc->amr_sg_dmat);
456
457 /* free and destroy DMA memory and tag for mailbox */
458 if (sc->amr_mailbox) {
459 p = (u_int8_t *)(uintptr_t)(volatile void *)sc->amr_mailbox;
460 bus_dmamem_free(sc->amr_mailbox_dmat, p - 16, sc->amr_mailbox_dmamap);
461 }
462 if (sc->amr_mailbox_dmat)
463 bus_dma_tag_destroy(sc->amr_mailbox_dmat);
464
465 /* disconnect the interrupt handler */
466 if (sc->amr_intr)
467 bus_teardown_intr(sc->amr_dev, sc->amr_irq, sc->amr_intr);
468 if (sc->amr_irq != NULL)
469 bus_release_resource(sc->amr_dev, SYS_RES_IRQ, 0, sc->amr_irq);
470
471 /* destroy the parent DMA tag */
472 if (sc->amr_parent_dmat)
473 bus_dma_tag_destroy(sc->amr_parent_dmat);
474
475 /* release the register window mapping */
476 if (sc->amr_reg != NULL)
477 bus_release_resource(sc->amr_dev,
478 AMR_IS_QUARTZ(sc) ? SYS_RES_MEMORY : SYS_RES_IOPORT,
479 PCIR_BAR(0), sc->amr_reg);
480 }
481
482 /********************************************************************************
483 * Allocate and map the scatter/gather table in bus space.
484 */
485 static void
486 amr_sglist_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
487 {
488 struct amr_softc *sc = (struct amr_softc *)arg;
489
490 debug_called(1);
491
492 /* save base of s/g table's address in bus space */
493 sc->amr_sgbusaddr = segs->ds_addr;
494 }
495
496 static int
497 amr_sglist_map(struct amr_softc *sc)
498 {
499 size_t segsize;
500 int error;
501
502 debug_called(1);
503
504 /*
505 * Create a single tag describing a region large enough to hold all of
506 * the s/g lists we will need.
507 *
508 * Note that we could probably use AMR_LIMITCMD here, but that may become tunable.
509 */
510 segsize = sizeof(struct amr_sgentry) * AMR_NSEG * AMR_MAXCMD;
511 error = bus_dma_tag_create(sc->amr_parent_dmat, /* parent */
512 1, 0, /* alignment, boundary */
513 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
514 BUS_SPACE_MAXADDR, /* highaddr */
515 NULL, NULL, /* filter, filterarg */
516 segsize, 1, /* maxsize, nsegments */
517 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
518 0, /* flags */
519 busdma_lock_mutex, /* lockfunc */
520 &Giant, /* lockarg */
521 &sc->amr_sg_dmat);
522 if (error != 0) {
523 device_printf(sc->amr_dev, "can't allocate scatter/gather DMA tag\n");
524 return(ENOMEM);
525 }
526
527 /*
528 * Allocate enough s/g maps for all commands and permanently map them into
529 * controller-visible space.
530 *
531 * XXX this assumes we can get enough space for all the s/g maps in one
532 * contiguous slab. We may need to switch to a more complex arrangement where
533 * we allocate in smaller chunks and keep a lookup table from slot to bus address.
534 *
535 * XXX HACK ALERT: at least some controllers don't like the s/g memory being
536 * allocated below 0x2000. We leak some memory if we get some
537 * below this mark and allocate again. We should be able to
538 * avoid this with the tag setup, but that does't seem to work.
539 */
540 retry:
541 error = bus_dmamem_alloc(sc->amr_sg_dmat, (void **)&sc->amr_sgtable, BUS_DMA_NOWAIT, &sc->amr_sg_dmamap);
542 if (error) {
543 device_printf(sc->amr_dev, "can't allocate s/g table\n");
544 return(ENOMEM);
545 }
546 bus_dmamap_load(sc->amr_sg_dmat, sc->amr_sg_dmamap, sc->amr_sgtable, segsize, amr_sglist_map_helper, sc, 0);
547 if (sc->amr_sgbusaddr < 0x2000) {
548 debug(1, "s/g table too low (0x%x), reallocating\n", sc->amr_sgbusaddr);
549 goto retry;
550 }
551 return(0);
552 }
553
554 /********************************************************************************
555 * Allocate and set up mailbox areas for the controller (sc)
556 *
557 * The basic mailbox structure should be 16-byte aligned. This means that the
558 * mailbox64 structure has 4 bytes hanging off the bottom.
559 */
560 static void
561 amr_setup_mbox_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
562 {
563 struct amr_softc *sc = (struct amr_softc *)arg;
564
565 debug_called(1);
566
567 /* save phsyical base of the basic mailbox structure */
568 sc->amr_mailboxphys = segs->ds_addr + 16;
569 }
570
571 static int
572 amr_setup_mbox(struct amr_softc *sc)
573 {
574 int error;
575 u_int8_t *p;
576
577 debug_called(1);
578
579 /*
580 * Create a single tag describing a region large enough to hold the entire
581 * mailbox.
582 */
583 error = bus_dma_tag_create(sc->amr_parent_dmat, /* parent */
584 16, 0, /* alignment, boundary */
585 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
586 BUS_SPACE_MAXADDR, /* highaddr */
587 NULL, NULL, /* filter, filterarg */
588 sizeof(struct amr_mailbox) + 16, 1, /* maxsize, nsegments */
589 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
590 0, /* flags */
591 busdma_lock_mutex, /* lockfunc */
592 &Giant, /* lockarg */
593 &sc->amr_mailbox_dmat);
594 if (error != 0) {
595 device_printf(sc->amr_dev, "can't allocate mailbox tag\n");
596 return(ENOMEM);
597 }
598
599 /*
600 * Allocate the mailbox structure and permanently map it into
601 * controller-visible space.
602 */
603 error = bus_dmamem_alloc(sc->amr_mailbox_dmat, (void **)&p, BUS_DMA_NOWAIT,
604 &sc->amr_mailbox_dmamap);
605 if (error) {
606 device_printf(sc->amr_dev, "can't allocate mailbox memory\n");
607 return(ENOMEM);
608 }
609 bus_dmamap_load(sc->amr_mailbox_dmat, sc->amr_mailbox_dmamap, p,
610 sizeof(struct amr_mailbox64), amr_setup_mbox_helper, sc, 0);
611 /*
612 * Conventional mailbox is inside the mailbox64 region.
613 */
614 bzero(p, sizeof(struct amr_mailbox64));
615 sc->amr_mailbox64 = (struct amr_mailbox64 *)(p + 12);
616 sc->amr_mailbox = (struct amr_mailbox *)(p + 16);
617
618 return(0);
619 }
Cache object: c70e33ad6e1a7716cb39e1f0abeb4543
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