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21#include <linux/delay.h>
22#include <linux/freezer.h>
23#include <linux/kernel.h>
24#include <linux/kthread.h>
25#include <linux/init.h>
26#include <linux/reboot.h>
27
28#include <asm/firmware.h>
29#include <asm/lv1call.h>
30#include <asm/ps3stor.h>
31
32#include "platform.h"
33
34static int __init ps3_register_lpm_devices(void)
35{
36 int result;
37 u64 tmp1;
38 u64 tmp2;
39 struct ps3_system_bus_device *dev;
40
41 pr_debug(" -> %s:%d\n", __func__, __LINE__);
42
43 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
44 if (!dev)
45 return -ENOMEM;
46
47 dev->match_id = PS3_MATCH_ID_LPM;
48 dev->dev_type = PS3_DEVICE_TYPE_LPM;
49
50
51
52 result = ps3_repository_read_be_node_id(0, &dev->lpm.node_id);
53
54 if (result) {
55 pr_debug("%s:%d: ps3_repository_read_be_node_id failed \n",
56 __func__, __LINE__);
57 goto fail_read_repo;
58 }
59
60 result = ps3_repository_read_lpm_privileges(dev->lpm.node_id, &tmp1,
61 &dev->lpm.rights);
62
63 if (result) {
64 pr_debug("%s:%d: ps3_repository_read_lpm_privleges failed \n",
65 __func__, __LINE__);
66 goto fail_read_repo;
67 }
68
69 lv1_get_logical_partition_id(&tmp2);
70
71 if (tmp1 != tmp2) {
72 pr_debug("%s:%d: wrong lpar\n",
73 __func__, __LINE__);
74 result = -ENODEV;
75 goto fail_rights;
76 }
77
78 if (!(dev->lpm.rights & PS3_LPM_RIGHTS_USE_LPM)) {
79 pr_debug("%s:%d: don't have rights to use lpm\n",
80 __func__, __LINE__);
81 result = -EPERM;
82 goto fail_rights;
83 }
84
85 pr_debug("%s:%d: pu_id %llu, rights %llu(%llxh)\n",
86 __func__, __LINE__, dev->lpm.pu_id, dev->lpm.rights,
87 dev->lpm.rights);
88
89 result = ps3_repository_read_pu_id(0, &dev->lpm.pu_id);
90
91 if (result) {
92 pr_debug("%s:%d: ps3_repository_read_pu_id failed \n",
93 __func__, __LINE__);
94 goto fail_read_repo;
95 }
96
97 result = ps3_system_bus_device_register(dev);
98
99 if (result) {
100 pr_debug("%s:%d ps3_system_bus_device_register failed\n",
101 __func__, __LINE__);
102 goto fail_register;
103 }
104
105 pr_debug(" <- %s:%d\n", __func__, __LINE__);
106 return 0;
107
108
109fail_register:
110fail_rights:
111fail_read_repo:
112 kfree(dev);
113 pr_debug(" <- %s:%d: failed\n", __func__, __LINE__);
114 return result;
115}
116
117
118
119
120
121
122
123
124static int __init ps3_setup_gelic_device(
125 const struct ps3_repository_device *repo)
126{
127 int result;
128 struct layout {
129 struct ps3_system_bus_device dev;
130 struct ps3_dma_region d_region;
131 } *p;
132
133 pr_debug(" -> %s:%d\n", __func__, __LINE__);
134
135 BUG_ON(repo->bus_type != PS3_BUS_TYPE_SB);
136 BUG_ON(repo->dev_type != PS3_DEV_TYPE_SB_GELIC);
137
138 p = kzalloc(sizeof(struct layout), GFP_KERNEL);
139
140 if (!p) {
141 result = -ENOMEM;
142 goto fail_malloc;
143 }
144
145 p->dev.match_id = PS3_MATCH_ID_GELIC;
146 p->dev.dev_type = PS3_DEVICE_TYPE_SB;
147 p->dev.bus_id = repo->bus_id;
148 p->dev.dev_id = repo->dev_id;
149 p->dev.d_region = &p->d_region;
150
151 result = ps3_repository_find_interrupt(repo,
152 PS3_INTERRUPT_TYPE_EVENT_PORT, &p->dev.interrupt_id);
153
154 if (result) {
155 pr_debug("%s:%d ps3_repository_find_interrupt failed\n",
156 __func__, __LINE__);
157 goto fail_find_interrupt;
158 }
159
160 BUG_ON(p->dev.interrupt_id != 0);
161
162 result = ps3_dma_region_init(&p->dev, p->dev.d_region, PS3_DMA_64K,
163 PS3_DMA_OTHER, NULL, 0);
164
165 if (result) {
166 pr_debug("%s:%d ps3_dma_region_init failed\n",
167 __func__, __LINE__);
168 goto fail_dma_init;
169 }
170
171 result = ps3_system_bus_device_register(&p->dev);
172
173 if (result) {
174 pr_debug("%s:%d ps3_system_bus_device_register failed\n",
175 __func__, __LINE__);
176 goto fail_device_register;
177 }
178
179 pr_debug(" <- %s:%d\n", __func__, __LINE__);
180 return result;
181
182fail_device_register:
183fail_dma_init:
184fail_find_interrupt:
185 kfree(p);
186fail_malloc:
187 pr_debug(" <- %s:%d: fail.\n", __func__, __LINE__);
188 return result;
189}
190
191static int __init_refok ps3_setup_uhc_device(
192 const struct ps3_repository_device *repo, enum ps3_match_id match_id,
193 enum ps3_interrupt_type interrupt_type, enum ps3_reg_type reg_type)
194{
195 int result;
196 struct layout {
197 struct ps3_system_bus_device dev;
198 struct ps3_dma_region d_region;
199 struct ps3_mmio_region m_region;
200 } *p;
201 u64 bus_addr;
202 u64 len;
203
204 pr_debug(" -> %s:%d\n", __func__, __LINE__);
205
206 BUG_ON(repo->bus_type != PS3_BUS_TYPE_SB);
207 BUG_ON(repo->dev_type != PS3_DEV_TYPE_SB_USB);
208
209 p = kzalloc(sizeof(struct layout), GFP_KERNEL);
210
211 if (!p) {
212 result = -ENOMEM;
213 goto fail_malloc;
214 }
215
216 p->dev.match_id = match_id;
217 p->dev.dev_type = PS3_DEVICE_TYPE_SB;
218 p->dev.bus_id = repo->bus_id;
219 p->dev.dev_id = repo->dev_id;
220 p->dev.d_region = &p->d_region;
221 p->dev.m_region = &p->m_region;
222
223 result = ps3_repository_find_interrupt(repo,
224 interrupt_type, &p->dev.interrupt_id);
225
226 if (result) {
227 pr_debug("%s:%d ps3_repository_find_interrupt failed\n",
228 __func__, __LINE__);
229 goto fail_find_interrupt;
230 }
231
232 result = ps3_repository_find_reg(repo, reg_type,
233 &bus_addr, &len);
234
235 if (result) {
236 pr_debug("%s:%d ps3_repository_find_reg failed\n",
237 __func__, __LINE__);
238 goto fail_find_reg;
239 }
240
241 result = ps3_dma_region_init(&p->dev, p->dev.d_region, PS3_DMA_64K,
242 PS3_DMA_INTERNAL, NULL, 0);
243
244 if (result) {
245 pr_debug("%s:%d ps3_dma_region_init failed\n",
246 __func__, __LINE__);
247 goto fail_dma_init;
248 }
249
250 result = ps3_mmio_region_init(&p->dev, p->dev.m_region, bus_addr, len,
251 PS3_MMIO_4K);
252
253 if (result) {
254 pr_debug("%s:%d ps3_mmio_region_init failed\n",
255 __func__, __LINE__);
256 goto fail_mmio_init;
257 }
258
259 result = ps3_system_bus_device_register(&p->dev);
260
261 if (result) {
262 pr_debug("%s:%d ps3_system_bus_device_register failed\n",
263 __func__, __LINE__);
264 goto fail_device_register;
265 }
266
267 pr_debug(" <- %s:%d\n", __func__, __LINE__);
268 return result;
269
270fail_device_register:
271fail_mmio_init:
272fail_dma_init:
273fail_find_reg:
274fail_find_interrupt:
275 kfree(p);
276fail_malloc:
277 pr_debug(" <- %s:%d: fail.\n", __func__, __LINE__);
278 return result;
279}
280
281static int __init ps3_setup_ehci_device(
282 const struct ps3_repository_device *repo)
283{
284 return ps3_setup_uhc_device(repo, PS3_MATCH_ID_EHCI,
285 PS3_INTERRUPT_TYPE_SB_EHCI, PS3_REG_TYPE_SB_EHCI);
286}
287
288static int __init ps3_setup_ohci_device(
289 const struct ps3_repository_device *repo)
290{
291 return ps3_setup_uhc_device(repo, PS3_MATCH_ID_OHCI,
292 PS3_INTERRUPT_TYPE_SB_OHCI, PS3_REG_TYPE_SB_OHCI);
293}
294
295static int __init ps3_setup_vuart_device(enum ps3_match_id match_id,
296 unsigned int port_number)
297{
298 int result;
299 struct layout {
300 struct ps3_system_bus_device dev;
301 } *p;
302
303 pr_debug(" -> %s:%d: match_id %u, port %u\n", __func__, __LINE__,
304 match_id, port_number);
305
306 p = kzalloc(sizeof(struct layout), GFP_KERNEL);
307
308 if (!p)
309 return -ENOMEM;
310
311 p->dev.match_id = match_id;
312 p->dev.dev_type = PS3_DEVICE_TYPE_VUART;
313 p->dev.port_number = port_number;
314
315 result = ps3_system_bus_device_register(&p->dev);
316
317 if (result) {
318 pr_debug("%s:%d ps3_system_bus_device_register failed\n",
319 __func__, __LINE__);
320 goto fail_device_register;
321 }
322 pr_debug(" <- %s:%d\n", __func__, __LINE__);
323 return 0;
324
325fail_device_register:
326 kfree(p);
327 pr_debug(" <- %s:%d fail\n", __func__, __LINE__);
328 return result;
329}
330
331static int ps3_setup_storage_dev(const struct ps3_repository_device *repo,
332 enum ps3_match_id match_id)
333{
334 int result;
335 struct ps3_storage_device *p;
336 u64 port, blk_size, num_blocks;
337 unsigned int num_regions, i;
338
339 pr_debug(" -> %s:%u: match_id %u\n", __func__, __LINE__, match_id);
340
341 result = ps3_repository_read_stor_dev_info(repo->bus_index,
342 repo->dev_index, &port,
343 &blk_size, &num_blocks,
344 &num_regions);
345 if (result) {
346 printk(KERN_ERR "%s:%u: _read_stor_dev_info failed %d\n",
347 __func__, __LINE__, result);
348 return -ENODEV;
349 }
350
351 pr_debug("%s:%u: (%u:%u:%u): port %llu blk_size %llu num_blocks %llu "
352 "num_regions %u\n", __func__, __LINE__, repo->bus_index,
353 repo->dev_index, repo->dev_type, port, blk_size, num_blocks,
354 num_regions);
355
356 p = kzalloc(sizeof(struct ps3_storage_device) +
357 num_regions * sizeof(struct ps3_storage_region),
358 GFP_KERNEL);
359 if (!p) {
360 result = -ENOMEM;
361 goto fail_malloc;
362 }
363
364 p->sbd.match_id = match_id;
365 p->sbd.dev_type = PS3_DEVICE_TYPE_SB;
366 p->sbd.bus_id = repo->bus_id;
367 p->sbd.dev_id = repo->dev_id;
368 p->sbd.d_region = &p->dma_region;
369 p->blk_size = blk_size;
370 p->num_regions = num_regions;
371
372 result = ps3_repository_find_interrupt(repo,
373 PS3_INTERRUPT_TYPE_EVENT_PORT,
374 &p->sbd.interrupt_id);
375 if (result) {
376 printk(KERN_ERR "%s:%u: find_interrupt failed %d\n", __func__,
377 __LINE__, result);
378 result = -ENODEV;
379 goto fail_find_interrupt;
380 }
381
382 for (i = 0; i < num_regions; i++) {
383 unsigned int id;
384 u64 start, size;
385
386 result = ps3_repository_read_stor_dev_region(repo->bus_index,
387 repo->dev_index,
388 i, &id, &start,
389 &size);
390 if (result) {
391 printk(KERN_ERR
392 "%s:%u: read_stor_dev_region failed %d\n",
393 __func__, __LINE__, result);
394 result = -ENODEV;
395 goto fail_read_region;
396 }
397 pr_debug("%s:%u: region %u: id %u start %llu size %llu\n",
398 __func__, __LINE__, i, id, start, size);
399
400 p->regions[i].id = id;
401 p->regions[i].start = start;
402 p->regions[i].size = size;
403 }
404
405 result = ps3_system_bus_device_register(&p->sbd);
406 if (result) {
407 pr_debug("%s:%u ps3_system_bus_device_register failed\n",
408 __func__, __LINE__);
409 goto fail_device_register;
410 }
411
412 pr_debug(" <- %s:%u\n", __func__, __LINE__);
413 return 0;
414
415fail_device_register:
416fail_read_region:
417fail_find_interrupt:
418 kfree(p);
419fail_malloc:
420 pr_debug(" <- %s:%u: fail.\n", __func__, __LINE__);
421 return result;
422}
423
424static int __init ps3_register_vuart_devices(void)
425{
426 int result;
427 unsigned int port_number;
428
429 pr_debug(" -> %s:%d\n", __func__, __LINE__);
430
431 result = ps3_repository_read_vuart_av_port(&port_number);
432 if (result)
433 port_number = 0;
434
435 result = ps3_setup_vuart_device(PS3_MATCH_ID_AV_SETTINGS, port_number);
436 WARN_ON(result);
437
438 result = ps3_repository_read_vuart_sysmgr_port(&port_number);
439 if (result)
440 port_number = 2;
441
442 result = ps3_setup_vuart_device(PS3_MATCH_ID_SYSTEM_MANAGER,
443 port_number);
444 WARN_ON(result);
445
446 pr_debug(" <- %s:%d\n", __func__, __LINE__);
447 return result;
448}
449
450static int __init ps3_register_sound_devices(void)
451{
452 int result;
453 struct layout {
454 struct ps3_system_bus_device dev;
455 struct ps3_dma_region d_region;
456 struct ps3_mmio_region m_region;
457 } *p;
458
459 pr_debug(" -> %s:%d\n", __func__, __LINE__);
460
461 p = kzalloc(sizeof(*p), GFP_KERNEL);
462 if (!p)
463 return -ENOMEM;
464
465 p->dev.match_id = PS3_MATCH_ID_SOUND;
466 p->dev.dev_type = PS3_DEVICE_TYPE_IOC0;
467 p->dev.d_region = &p->d_region;
468 p->dev.m_region = &p->m_region;
469
470 result = ps3_system_bus_device_register(&p->dev);
471
472 if (result) {
473 pr_debug("%s:%d ps3_system_bus_device_register failed\n",
474 __func__, __LINE__);
475 goto fail_device_register;
476 }
477 pr_debug(" <- %s:%d\n", __func__, __LINE__);
478 return 0;
479
480fail_device_register:
481 kfree(p);
482 pr_debug(" <- %s:%d failed\n", __func__, __LINE__);
483 return result;
484}
485
486static int __init ps3_register_graphics_devices(void)
487{
488 int result;
489 struct layout {
490 struct ps3_system_bus_device dev;
491 } *p;
492
493 pr_debug(" -> %s:%d\n", __func__, __LINE__);
494
495 p = kzalloc(sizeof(struct layout), GFP_KERNEL);
496
497 if (!p)
498 return -ENOMEM;
499
500 p->dev.match_id = PS3_MATCH_ID_GPU;
501 p->dev.match_sub_id = PS3_MATCH_SUB_ID_GPU_FB;
502 p->dev.dev_type = PS3_DEVICE_TYPE_IOC0;
503
504 result = ps3_system_bus_device_register(&p->dev);
505
506 if (result) {
507 pr_debug("%s:%d ps3_system_bus_device_register failed\n",
508 __func__, __LINE__);
509 goto fail_device_register;
510 }
511
512 pr_debug(" <- %s:%d\n", __func__, __LINE__);
513 return 0;
514
515fail_device_register:
516 kfree(p);
517 pr_debug(" <- %s:%d failed\n", __func__, __LINE__);
518 return result;
519}
520
521static int __init ps3_register_ramdisk_device(void)
522{
523 int result;
524 struct layout {
525 struct ps3_system_bus_device dev;
526 } *p;
527
528 pr_debug(" -> %s:%d\n", __func__, __LINE__);
529
530 p = kzalloc(sizeof(struct layout), GFP_KERNEL);
531
532 if (!p)
533 return -ENOMEM;
534
535 p->dev.match_id = PS3_MATCH_ID_GPU;
536 p->dev.match_sub_id = PS3_MATCH_SUB_ID_GPU_RAMDISK;
537 p->dev.dev_type = PS3_DEVICE_TYPE_IOC0;
538
539 result = ps3_system_bus_device_register(&p->dev);
540
541 if (result) {
542 pr_debug("%s:%d ps3_system_bus_device_register failed\n",
543 __func__, __LINE__);
544 goto fail_device_register;
545 }
546
547 pr_debug(" <- %s:%d\n", __func__, __LINE__);
548 return 0;
549
550fail_device_register:
551 kfree(p);
552 pr_debug(" <- %s:%d failed\n", __func__, __LINE__);
553 return result;
554}
555
556
557
558
559
560static int ps3_setup_dynamic_device(const struct ps3_repository_device *repo)
561{
562 int result;
563
564 switch (repo->dev_type) {
565 case PS3_DEV_TYPE_STOR_DISK:
566 result = ps3_setup_storage_dev(repo, PS3_MATCH_ID_STOR_DISK);
567
568
569 if (result == -ENODEV) {
570 result = 0;
571 pr_debug("%s:%u: not accessable\n", __func__,
572 __LINE__);
573 }
574
575 if (result)
576 pr_debug("%s:%u ps3_setup_storage_dev failed\n",
577 __func__, __LINE__);
578 break;
579
580 case PS3_DEV_TYPE_STOR_ROM:
581 result = ps3_setup_storage_dev(repo, PS3_MATCH_ID_STOR_ROM);
582 if (result)
583 pr_debug("%s:%u ps3_setup_storage_dev failed\n",
584 __func__, __LINE__);
585 break;
586
587 case PS3_DEV_TYPE_STOR_FLASH:
588 result = ps3_setup_storage_dev(repo, PS3_MATCH_ID_STOR_FLASH);
589 if (result)
590 pr_debug("%s:%u ps3_setup_storage_dev failed\n",
591 __func__, __LINE__);
592 break;
593
594 default:
595 result = 0;
596 pr_debug("%s:%u: unsupported dev_type %u\n", __func__, __LINE__,
597 repo->dev_type);
598 }
599
600 return result;
601}
602
603
604
605
606
607static int __init ps3_setup_static_device(const struct ps3_repository_device *repo)
608{
609 int result;
610
611 switch (repo->dev_type) {
612 case PS3_DEV_TYPE_SB_GELIC:
613 result = ps3_setup_gelic_device(repo);
614 if (result) {
615 pr_debug("%s:%d ps3_setup_gelic_device failed\n",
616 __func__, __LINE__);
617 }
618 break;
619 case PS3_DEV_TYPE_SB_USB:
620
621
622
623 result = ps3_setup_ehci_device(repo);
624
625 if (result) {
626 pr_debug("%s:%d ps3_setup_ehci_device failed\n",
627 __func__, __LINE__);
628 }
629
630 result = ps3_setup_ohci_device(repo);
631
632 if (result) {
633 pr_debug("%s:%d ps3_setup_ohci_device failed\n",
634 __func__, __LINE__);
635 }
636 break;
637
638 default:
639 return ps3_setup_dynamic_device(repo);
640 }
641
642 return result;
643}
644
645static void ps3_find_and_add_device(u64 bus_id, u64 dev_id)
646{
647 struct ps3_repository_device repo;
648 int res;
649 unsigned int retries;
650 unsigned long rem;
651
652
653
654
655
656 for (retries = 0; retries < 10; retries++) {
657 res = ps3_repository_find_device_by_id(&repo, bus_id, dev_id);
658 if (!res)
659 goto found;
660
661 rem = msleep_interruptible(100);
662 if (rem)
663 break;
664 }
665 pr_warning("%s:%u: device %llu:%llu not found\n", __func__, __LINE__,
666 bus_id, dev_id);
667 return;
668
669found:
670 if (retries)
671 pr_debug("%s:%u: device %llu:%llu found after %u retries\n",
672 __func__, __LINE__, bus_id, dev_id, retries);
673
674 ps3_setup_dynamic_device(&repo);
675 return;
676}
677
678#define PS3_NOTIFICATION_DEV_ID ULONG_MAX
679#define PS3_NOTIFICATION_INTERRUPT_ID 0
680
681struct ps3_notification_device {
682 struct ps3_system_bus_device sbd;
683 spinlock_t lock;
684 u64 tag;
685 u64 lv1_status;
686 struct completion done;
687};
688
689enum ps3_notify_type {
690 notify_device_ready = 0,
691 notify_region_probe = 1,
692 notify_region_update = 2,
693};
694
695struct ps3_notify_cmd {
696 u64 operation_code;
697 u64 event_mask;
698};
699
700struct ps3_notify_event {
701 u64 event_type;
702 u64 bus_id;
703 u64 dev_id;
704 u64 dev_type;
705 u64 dev_port;
706};
707
708static irqreturn_t ps3_notification_interrupt(int irq, void *data)
709{
710 struct ps3_notification_device *dev = data;
711 int res;
712 u64 tag, status;
713
714 spin_lock(&dev->lock);
715 res = lv1_storage_get_async_status(PS3_NOTIFICATION_DEV_ID, &tag,
716 &status);
717 if (tag != dev->tag)
718 pr_err("%s:%u: tag mismatch, got %llx, expected %llx\n",
719 __func__, __LINE__, tag, dev->tag);
720
721 if (res) {
722 pr_err("%s:%u: res %d status 0x%llx\n", __func__, __LINE__, res,
723 status);
724 } else {
725 pr_debug("%s:%u: completed, status 0x%llx\n", __func__,
726 __LINE__, status);
727 dev->lv1_status = status;
728 complete(&dev->done);
729 }
730 spin_unlock(&dev->lock);
731 return IRQ_HANDLED;
732}
733
734static int ps3_notification_read_write(struct ps3_notification_device *dev,
735 u64 lpar, int write)
736{
737 const char *op = write ? "write" : "read";
738 unsigned long flags;
739 int res;
740
741 init_completion(&dev->done);
742 spin_lock_irqsave(&dev->lock, flags);
743 res = write ? lv1_storage_write(dev->sbd.dev_id, 0, 0, 1, 0, lpar,
744 &dev->tag)
745 : lv1_storage_read(dev->sbd.dev_id, 0, 0, 1, 0, lpar,
746 &dev->tag);
747 spin_unlock_irqrestore(&dev->lock, flags);
748 if (res) {
749 pr_err("%s:%u: %s failed %d\n", __func__, __LINE__, op, res);
750 return -EPERM;
751 }
752 pr_debug("%s:%u: notification %s issued\n", __func__, __LINE__, op);
753
754 res = wait_event_interruptible(dev->done.wait,
755 dev->done.done || kthread_should_stop());
756 if (kthread_should_stop())
757 res = -EINTR;
758 if (res) {
759 pr_debug("%s:%u: interrupted %s\n", __func__, __LINE__, op);
760 return res;
761 }
762
763 if (dev->lv1_status) {
764 pr_err("%s:%u: %s not completed, status 0x%llx\n", __func__,
765 __LINE__, op, dev->lv1_status);
766 return -EIO;
767 }
768 pr_debug("%s:%u: notification %s completed\n", __func__, __LINE__, op);
769
770 return 0;
771}
772
773static struct task_struct *probe_task;
774
775
776
777
778
779
780
781
782
783
784
785static int ps3_probe_thread(void *data)
786{
787 struct ps3_notification_device dev;
788 int res;
789 unsigned int irq;
790 u64 lpar;
791 void *buf;
792 struct ps3_notify_cmd *notify_cmd;
793 struct ps3_notify_event *notify_event;
794
795 pr_debug(" -> %s:%u: kthread started\n", __func__, __LINE__);
796
797 buf = kzalloc(512, GFP_KERNEL);
798 if (!buf)
799 return -ENOMEM;
800
801 lpar = ps3_mm_phys_to_lpar(__pa(buf));
802 notify_cmd = buf;
803 notify_event = buf;
804
805
806 dev.sbd.bus_id = (u64)data;
807 dev.sbd.dev_id = PS3_NOTIFICATION_DEV_ID;
808 dev.sbd.interrupt_id = PS3_NOTIFICATION_INTERRUPT_ID;
809
810 res = lv1_open_device(dev.sbd.bus_id, dev.sbd.dev_id, 0);
811 if (res) {
812 pr_err("%s:%u: lv1_open_device failed %s\n", __func__,
813 __LINE__, ps3_result(res));
814 goto fail_free;
815 }
816
817 res = ps3_sb_event_receive_port_setup(&dev.sbd, PS3_BINDING_CPU_ANY,
818 &irq);
819 if (res) {
820 pr_err("%s:%u: ps3_sb_event_receive_port_setup failed %d\n",
821 __func__, __LINE__, res);
822 goto fail_close_device;
823 }
824
825 spin_lock_init(&dev.lock);
826
827 res = request_irq(irq, ps3_notification_interrupt, IRQF_DISABLED,
828 "ps3_notification", &dev);
829 if (res) {
830 pr_err("%s:%u: request_irq failed %d\n", __func__, __LINE__,
831 res);
832 goto fail_sb_event_receive_port_destroy;
833 }
834
835
836 notify_cmd->operation_code = 0;
837 notify_cmd->event_mask = 1UL << notify_region_probe;
838
839 res = ps3_notification_read_write(&dev, lpar, 1);
840 if (res)
841 goto fail_free_irq;
842
843
844 do {
845 try_to_freeze();
846
847 memset(notify_event, 0, sizeof(*notify_event));
848
849 res = ps3_notification_read_write(&dev, lpar, 0);
850 if (res)
851 break;
852
853 pr_debug("%s:%u: notify event type 0x%llx bus id %llu dev id %llu"
854 " type %llu port %llu\n", __func__, __LINE__,
855 notify_event->event_type, notify_event->bus_id,
856 notify_event->dev_id, notify_event->dev_type,
857 notify_event->dev_port);
858
859 if (notify_event->event_type != notify_region_probe ||
860 notify_event->bus_id != dev.sbd.bus_id) {
861 pr_warning("%s:%u: bad notify_event: event %llu, "
862 "dev_id %llu, dev_type %llu\n",
863 __func__, __LINE__, notify_event->event_type,
864 notify_event->dev_id,
865 notify_event->dev_type);
866 continue;
867 }
868
869 ps3_find_and_add_device(dev.sbd.bus_id, notify_event->dev_id);
870
871 } while (!kthread_should_stop());
872
873fail_free_irq:
874 free_irq(irq, &dev);
875fail_sb_event_receive_port_destroy:
876 ps3_sb_event_receive_port_destroy(&dev.sbd, irq);
877fail_close_device:
878 lv1_close_device(dev.sbd.bus_id, dev.sbd.dev_id);
879fail_free:
880 kfree(buf);
881
882 probe_task = NULL;
883
884 pr_debug(" <- %s:%u: kthread finished\n", __func__, __LINE__);
885
886 return 0;
887}
888
889
890
891
892
893
894static int ps3_stop_probe_thread(struct notifier_block *nb, unsigned long code,
895 void *data)
896{
897 if (probe_task)
898 kthread_stop(probe_task);
899 return 0;
900}
901
902static struct notifier_block nb = {
903 .notifier_call = ps3_stop_probe_thread
904};
905
906
907
908
909
910
911static int __init ps3_start_probe_thread(enum ps3_bus_type bus_type)
912{
913 int result;
914 struct task_struct *task;
915 struct ps3_repository_device repo;
916
917 pr_debug(" -> %s:%d\n", __func__, __LINE__);
918
919 memset(&repo, 0, sizeof(repo));
920
921 repo.bus_type = bus_type;
922
923 result = ps3_repository_find_bus(repo.bus_type, 0, &repo.bus_index);
924
925 if (result) {
926 printk(KERN_ERR "%s: Cannot find bus (%d)\n", __func__, result);
927 return -ENODEV;
928 }
929
930 result = ps3_repository_read_bus_id(repo.bus_index, &repo.bus_id);
931
932 if (result) {
933 printk(KERN_ERR "%s: read_bus_id failed %d\n", __func__,
934 result);
935 return -ENODEV;
936 }
937
938 task = kthread_run(ps3_probe_thread, (void *)repo.bus_id,
939 "ps3-probe-%u", bus_type);
940
941 if (IS_ERR(task)) {
942 result = PTR_ERR(task);
943 printk(KERN_ERR "%s: kthread_run failed %d\n", __func__,
944 result);
945 return result;
946 }
947
948 probe_task = task;
949 register_reboot_notifier(&nb);
950
951 pr_debug(" <- %s:%d\n", __func__, __LINE__);
952 return 0;
953}
954
955
956
957
958
959
960
961static int __init ps3_register_devices(void)
962{
963 int result;
964
965 if (!firmware_has_feature(FW_FEATURE_PS3_LV1))
966 return -ENODEV;
967
968 pr_debug(" -> %s:%d\n", __func__, __LINE__);
969
970
971
972 result = ps3_start_probe_thread(PS3_BUS_TYPE_STORAGE);
973
974 ps3_register_vuart_devices();
975
976 ps3_register_graphics_devices();
977
978 ps3_repository_find_devices(PS3_BUS_TYPE_SB, ps3_setup_static_device);
979
980 ps3_register_sound_devices();
981
982 ps3_register_lpm_devices();
983
984 ps3_register_ramdisk_device();
985
986 pr_debug(" <- %s:%d\n", __func__, __LINE__);
987 return 0;
988}
989
990device_initcall(ps3_register_devices);
991
