diff options
Diffstat (limited to 'kernel/irq/chip.c')
-rw-r--r-- | kernel/irq/chip.c | 86 |
1 files changed, 43 insertions, 43 deletions
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c index ba566c261adc..ecc3fa28f666 100644 --- a/kernel/irq/chip.c +++ b/kernel/irq/chip.c | |||
@@ -34,7 +34,7 @@ void dynamic_irq_init(unsigned int irq) | |||
34 | } | 34 | } |
35 | 35 | ||
36 | /* Ensure we don't have left over values from a previous use of this irq */ | 36 | /* Ensure we don't have left over values from a previous use of this irq */ |
37 | spin_lock_irqsave(&desc->lock, flags); | 37 | raw_spin_lock_irqsave(&desc->lock, flags); |
38 | desc->status = IRQ_DISABLED; | 38 | desc->status = IRQ_DISABLED; |
39 | desc->chip = &no_irq_chip; | 39 | desc->chip = &no_irq_chip; |
40 | desc->handle_irq = handle_bad_irq; | 40 | desc->handle_irq = handle_bad_irq; |
@@ -51,7 +51,7 @@ void dynamic_irq_init(unsigned int irq) | |||
51 | cpumask_clear(desc->pending_mask); | 51 | cpumask_clear(desc->pending_mask); |
52 | #endif | 52 | #endif |
53 | #endif | 53 | #endif |
54 | spin_unlock_irqrestore(&desc->lock, flags); | 54 | raw_spin_unlock_irqrestore(&desc->lock, flags); |
55 | } | 55 | } |
56 | 56 | ||
57 | /** | 57 | /** |
@@ -68,9 +68,9 @@ void dynamic_irq_cleanup(unsigned int irq) | |||
68 | return; | 68 | return; |
69 | } | 69 | } |
70 | 70 | ||
71 | spin_lock_irqsave(&desc->lock, flags); | 71 | raw_spin_lock_irqsave(&desc->lock, flags); |
72 | if (desc->action) { | 72 | if (desc->action) { |
73 | spin_unlock_irqrestore(&desc->lock, flags); | 73 | raw_spin_unlock_irqrestore(&desc->lock, flags); |
74 | WARN(1, KERN_ERR "Destroying IRQ%d without calling free_irq\n", | 74 | WARN(1, KERN_ERR "Destroying IRQ%d without calling free_irq\n", |
75 | irq); | 75 | irq); |
76 | return; | 76 | return; |
@@ -82,7 +82,7 @@ void dynamic_irq_cleanup(unsigned int irq) | |||
82 | desc->chip = &no_irq_chip; | 82 | desc->chip = &no_irq_chip; |
83 | desc->name = NULL; | 83 | desc->name = NULL; |
84 | clear_kstat_irqs(desc); | 84 | clear_kstat_irqs(desc); |
85 | spin_unlock_irqrestore(&desc->lock, flags); | 85 | raw_spin_unlock_irqrestore(&desc->lock, flags); |
86 | } | 86 | } |
87 | 87 | ||
88 | 88 | ||
@@ -104,10 +104,10 @@ int set_irq_chip(unsigned int irq, struct irq_chip *chip) | |||
104 | if (!chip) | 104 | if (!chip) |
105 | chip = &no_irq_chip; | 105 | chip = &no_irq_chip; |
106 | 106 | ||
107 | spin_lock_irqsave(&desc->lock, flags); | 107 | raw_spin_lock_irqsave(&desc->lock, flags); |
108 | irq_chip_set_defaults(chip); | 108 | irq_chip_set_defaults(chip); |
109 | desc->chip = chip; | 109 | desc->chip = chip; |
110 | spin_unlock_irqrestore(&desc->lock, flags); | 110 | raw_spin_unlock_irqrestore(&desc->lock, flags); |
111 | 111 | ||
112 | return 0; | 112 | return 0; |
113 | } | 113 | } |
@@ -133,9 +133,9 @@ int set_irq_type(unsigned int irq, unsigned int type) | |||
133 | if (type == IRQ_TYPE_NONE) | 133 | if (type == IRQ_TYPE_NONE) |
134 | return 0; | 134 | return 0; |
135 | 135 | ||
136 | spin_lock_irqsave(&desc->lock, flags); | 136 | raw_spin_lock_irqsave(&desc->lock, flags); |
137 | ret = __irq_set_trigger(desc, irq, type); | 137 | ret = __irq_set_trigger(desc, irq, type); |
138 | spin_unlock_irqrestore(&desc->lock, flags); | 138 | raw_spin_unlock_irqrestore(&desc->lock, flags); |
139 | return ret; | 139 | return ret; |
140 | } | 140 | } |
141 | EXPORT_SYMBOL(set_irq_type); | 141 | EXPORT_SYMBOL(set_irq_type); |
@@ -158,9 +158,9 @@ int set_irq_data(unsigned int irq, void *data) | |||
158 | return -EINVAL; | 158 | return -EINVAL; |
159 | } | 159 | } |
160 | 160 | ||
161 | spin_lock_irqsave(&desc->lock, flags); | 161 | raw_spin_lock_irqsave(&desc->lock, flags); |
162 | desc->handler_data = data; | 162 | desc->handler_data = data; |
163 | spin_unlock_irqrestore(&desc->lock, flags); | 163 | raw_spin_unlock_irqrestore(&desc->lock, flags); |
164 | return 0; | 164 | return 0; |
165 | } | 165 | } |
166 | EXPORT_SYMBOL(set_irq_data); | 166 | EXPORT_SYMBOL(set_irq_data); |
@@ -183,11 +183,11 @@ int set_irq_msi(unsigned int irq, struct msi_desc *entry) | |||
183 | return -EINVAL; | 183 | return -EINVAL; |
184 | } | 184 | } |
185 | 185 | ||
186 | spin_lock_irqsave(&desc->lock, flags); | 186 | raw_spin_lock_irqsave(&desc->lock, flags); |
187 | desc->msi_desc = entry; | 187 | desc->msi_desc = entry; |
188 | if (entry) | 188 | if (entry) |
189 | entry->irq = irq; | 189 | entry->irq = irq; |
190 | spin_unlock_irqrestore(&desc->lock, flags); | 190 | raw_spin_unlock_irqrestore(&desc->lock, flags); |
191 | return 0; | 191 | return 0; |
192 | } | 192 | } |
193 | 193 | ||
@@ -214,9 +214,9 @@ int set_irq_chip_data(unsigned int irq, void *data) | |||
214 | return -EINVAL; | 214 | return -EINVAL; |
215 | } | 215 | } |
216 | 216 | ||
217 | spin_lock_irqsave(&desc->lock, flags); | 217 | raw_spin_lock_irqsave(&desc->lock, flags); |
218 | desc->chip_data = data; | 218 | desc->chip_data = data; |
219 | spin_unlock_irqrestore(&desc->lock, flags); | 219 | raw_spin_unlock_irqrestore(&desc->lock, flags); |
220 | 220 | ||
221 | return 0; | 221 | return 0; |
222 | } | 222 | } |
@@ -241,12 +241,12 @@ void set_irq_nested_thread(unsigned int irq, int nest) | |||
241 | if (!desc) | 241 | if (!desc) |
242 | return; | 242 | return; |
243 | 243 | ||
244 | spin_lock_irqsave(&desc->lock, flags); | 244 | raw_spin_lock_irqsave(&desc->lock, flags); |
245 | if (nest) | 245 | if (nest) |
246 | desc->status |= IRQ_NESTED_THREAD; | 246 | desc->status |= IRQ_NESTED_THREAD; |
247 | else | 247 | else |
248 | desc->status &= ~IRQ_NESTED_THREAD; | 248 | desc->status &= ~IRQ_NESTED_THREAD; |
249 | spin_unlock_irqrestore(&desc->lock, flags); | 249 | raw_spin_unlock_irqrestore(&desc->lock, flags); |
250 | } | 250 | } |
251 | EXPORT_SYMBOL_GPL(set_irq_nested_thread); | 251 | EXPORT_SYMBOL_GPL(set_irq_nested_thread); |
252 | 252 | ||
@@ -343,7 +343,7 @@ void handle_nested_irq(unsigned int irq) | |||
343 | 343 | ||
344 | might_sleep(); | 344 | might_sleep(); |
345 | 345 | ||
346 | spin_lock_irq(&desc->lock); | 346 | raw_spin_lock_irq(&desc->lock); |
347 | 347 | ||
348 | kstat_incr_irqs_this_cpu(irq, desc); | 348 | kstat_incr_irqs_this_cpu(irq, desc); |
349 | 349 | ||
@@ -352,17 +352,17 @@ void handle_nested_irq(unsigned int irq) | |||
352 | goto out_unlock; | 352 | goto out_unlock; |
353 | 353 | ||
354 | desc->status |= IRQ_INPROGRESS; | 354 | desc->status |= IRQ_INPROGRESS; |
355 | spin_unlock_irq(&desc->lock); | 355 | raw_spin_unlock_irq(&desc->lock); |
356 | 356 | ||
357 | action_ret = action->thread_fn(action->irq, action->dev_id); | 357 | action_ret = action->thread_fn(action->irq, action->dev_id); |
358 | if (!noirqdebug) | 358 | if (!noirqdebug) |
359 | note_interrupt(irq, desc, action_ret); | 359 | note_interrupt(irq, desc, action_ret); |
360 | 360 | ||
361 | spin_lock_irq(&desc->lock); | 361 | raw_spin_lock_irq(&desc->lock); |
362 | desc->status &= ~IRQ_INPROGRESS; | 362 | desc->status &= ~IRQ_INPROGRESS; |
363 | 363 | ||
364 | out_unlock: | 364 | out_unlock: |
365 | spin_unlock_irq(&desc->lock); | 365 | raw_spin_unlock_irq(&desc->lock); |
366 | } | 366 | } |
367 | EXPORT_SYMBOL_GPL(handle_nested_irq); | 367 | EXPORT_SYMBOL_GPL(handle_nested_irq); |
368 | 368 | ||
@@ -384,7 +384,7 @@ handle_simple_irq(unsigned int irq, struct irq_desc *desc) | |||
384 | struct irqaction *action; | 384 | struct irqaction *action; |
385 | irqreturn_t action_ret; | 385 | irqreturn_t action_ret; |
386 | 386 | ||
387 | spin_lock(&desc->lock); | 387 | raw_spin_lock(&desc->lock); |
388 | 388 | ||
389 | if (unlikely(desc->status & IRQ_INPROGRESS)) | 389 | if (unlikely(desc->status & IRQ_INPROGRESS)) |
390 | goto out_unlock; | 390 | goto out_unlock; |
@@ -396,16 +396,16 @@ handle_simple_irq(unsigned int irq, struct irq_desc *desc) | |||
396 | goto out_unlock; | 396 | goto out_unlock; |
397 | 397 | ||
398 | desc->status |= IRQ_INPROGRESS; | 398 | desc->status |= IRQ_INPROGRESS; |
399 | spin_unlock(&desc->lock); | 399 | raw_spin_unlock(&desc->lock); |
400 | 400 | ||
401 | action_ret = handle_IRQ_event(irq, action); | 401 | action_ret = handle_IRQ_event(irq, action); |
402 | if (!noirqdebug) | 402 | if (!noirqdebug) |
403 | note_interrupt(irq, desc, action_ret); | 403 | note_interrupt(irq, desc, action_ret); |
404 | 404 | ||
405 | spin_lock(&desc->lock); | 405 | raw_spin_lock(&desc->lock); |
406 | desc->status &= ~IRQ_INPROGRESS; | 406 | desc->status &= ~IRQ_INPROGRESS; |
407 | out_unlock: | 407 | out_unlock: |
408 | spin_unlock(&desc->lock); | 408 | raw_spin_unlock(&desc->lock); |
409 | } | 409 | } |
410 | 410 | ||
411 | /** | 411 | /** |
@@ -424,7 +424,7 @@ handle_level_irq(unsigned int irq, struct irq_desc *desc) | |||
424 | struct irqaction *action; | 424 | struct irqaction *action; |
425 | irqreturn_t action_ret; | 425 | irqreturn_t action_ret; |
426 | 426 | ||
427 | spin_lock(&desc->lock); | 427 | raw_spin_lock(&desc->lock); |
428 | mask_ack_irq(desc, irq); | 428 | mask_ack_irq(desc, irq); |
429 | 429 | ||
430 | if (unlikely(desc->status & IRQ_INPROGRESS)) | 430 | if (unlikely(desc->status & IRQ_INPROGRESS)) |
@@ -441,13 +441,13 @@ handle_level_irq(unsigned int irq, struct irq_desc *desc) | |||
441 | goto out_unlock; | 441 | goto out_unlock; |
442 | 442 | ||
443 | desc->status |= IRQ_INPROGRESS; | 443 | desc->status |= IRQ_INPROGRESS; |
444 | spin_unlock(&desc->lock); | 444 | raw_spin_unlock(&desc->lock); |
445 | 445 | ||
446 | action_ret = handle_IRQ_event(irq, action); | 446 | action_ret = handle_IRQ_event(irq, action); |
447 | if (!noirqdebug) | 447 | if (!noirqdebug) |
448 | note_interrupt(irq, desc, action_ret); | 448 | note_interrupt(irq, desc, action_ret); |
449 | 449 | ||
450 | spin_lock(&desc->lock); | 450 | raw_spin_lock(&desc->lock); |
451 | desc->status &= ~IRQ_INPROGRESS; | 451 | desc->status &= ~IRQ_INPROGRESS; |
452 | 452 | ||
453 | if (unlikely(desc->status & IRQ_ONESHOT)) | 453 | if (unlikely(desc->status & IRQ_ONESHOT)) |
@@ -455,7 +455,7 @@ handle_level_irq(unsigned int irq, struct irq_desc *desc) | |||
455 | else if (!(desc->status & IRQ_DISABLED) && desc->chip->unmask) | 455 | else if (!(desc->status & IRQ_DISABLED) && desc->chip->unmask) |
456 | desc->chip->unmask(irq); | 456 | desc->chip->unmask(irq); |
457 | out_unlock: | 457 | out_unlock: |
458 | spin_unlock(&desc->lock); | 458 | raw_spin_unlock(&desc->lock); |
459 | } | 459 | } |
460 | EXPORT_SYMBOL_GPL(handle_level_irq); | 460 | EXPORT_SYMBOL_GPL(handle_level_irq); |
461 | 461 | ||
@@ -475,7 +475,7 @@ handle_fasteoi_irq(unsigned int irq, struct irq_desc *desc) | |||
475 | struct irqaction *action; | 475 | struct irqaction *action; |
476 | irqreturn_t action_ret; | 476 | irqreturn_t action_ret; |
477 | 477 | ||
478 | spin_lock(&desc->lock); | 478 | raw_spin_lock(&desc->lock); |
479 | 479 | ||
480 | if (unlikely(desc->status & IRQ_INPROGRESS)) | 480 | if (unlikely(desc->status & IRQ_INPROGRESS)) |
481 | goto out; | 481 | goto out; |
@@ -497,18 +497,18 @@ handle_fasteoi_irq(unsigned int irq, struct irq_desc *desc) | |||
497 | 497 | ||
498 | desc->status |= IRQ_INPROGRESS; | 498 | desc->status |= IRQ_INPROGRESS; |
499 | desc->status &= ~IRQ_PENDING; | 499 | desc->status &= ~IRQ_PENDING; |
500 | spin_unlock(&desc->lock); | 500 | raw_spin_unlock(&desc->lock); |
501 | 501 | ||
502 | action_ret = handle_IRQ_event(irq, action); | 502 | action_ret = handle_IRQ_event(irq, action); |
503 | if (!noirqdebug) | 503 | if (!noirqdebug) |
504 | note_interrupt(irq, desc, action_ret); | 504 | note_interrupt(irq, desc, action_ret); |
505 | 505 | ||
506 | spin_lock(&desc->lock); | 506 | raw_spin_lock(&desc->lock); |
507 | desc->status &= ~IRQ_INPROGRESS; | 507 | desc->status &= ~IRQ_INPROGRESS; |
508 | out: | 508 | out: |
509 | desc->chip->eoi(irq); | 509 | desc->chip->eoi(irq); |
510 | 510 | ||
511 | spin_unlock(&desc->lock); | 511 | raw_spin_unlock(&desc->lock); |
512 | } | 512 | } |
513 | 513 | ||
514 | /** | 514 | /** |
@@ -530,7 +530,7 @@ out: | |||
530 | void | 530 | void |
531 | handle_edge_irq(unsigned int irq, struct irq_desc *desc) | 531 | handle_edge_irq(unsigned int irq, struct irq_desc *desc) |
532 | { | 532 | { |
533 | spin_lock(&desc->lock); | 533 | raw_spin_lock(&desc->lock); |
534 | 534 | ||
535 | desc->status &= ~(IRQ_REPLAY | IRQ_WAITING); | 535 | desc->status &= ~(IRQ_REPLAY | IRQ_WAITING); |
536 | 536 | ||
@@ -576,17 +576,17 @@ handle_edge_irq(unsigned int irq, struct irq_desc *desc) | |||
576 | } | 576 | } |
577 | 577 | ||
578 | desc->status &= ~IRQ_PENDING; | 578 | desc->status &= ~IRQ_PENDING; |
579 | spin_unlock(&desc->lock); | 579 | raw_spin_unlock(&desc->lock); |
580 | action_ret = handle_IRQ_event(irq, action); | 580 | action_ret = handle_IRQ_event(irq, action); |
581 | if (!noirqdebug) | 581 | if (!noirqdebug) |
582 | note_interrupt(irq, desc, action_ret); | 582 | note_interrupt(irq, desc, action_ret); |
583 | spin_lock(&desc->lock); | 583 | raw_spin_lock(&desc->lock); |
584 | 584 | ||
585 | } while ((desc->status & (IRQ_PENDING | IRQ_DISABLED)) == IRQ_PENDING); | 585 | } while ((desc->status & (IRQ_PENDING | IRQ_DISABLED)) == IRQ_PENDING); |
586 | 586 | ||
587 | desc->status &= ~IRQ_INPROGRESS; | 587 | desc->status &= ~IRQ_INPROGRESS; |
588 | out_unlock: | 588 | out_unlock: |
589 | spin_unlock(&desc->lock); | 589 | raw_spin_unlock(&desc->lock); |
590 | } | 590 | } |
591 | 591 | ||
592 | /** | 592 | /** |
@@ -643,7 +643,7 @@ __set_irq_handler(unsigned int irq, irq_flow_handler_t handle, int is_chained, | |||
643 | } | 643 | } |
644 | 644 | ||
645 | chip_bus_lock(irq, desc); | 645 | chip_bus_lock(irq, desc); |
646 | spin_lock_irqsave(&desc->lock, flags); | 646 | raw_spin_lock_irqsave(&desc->lock, flags); |
647 | 647 | ||
648 | /* Uninstall? */ | 648 | /* Uninstall? */ |
649 | if (handle == handle_bad_irq) { | 649 | if (handle == handle_bad_irq) { |
@@ -661,7 +661,7 @@ __set_irq_handler(unsigned int irq, irq_flow_handler_t handle, int is_chained, | |||
661 | desc->depth = 0; | 661 | desc->depth = 0; |
662 | desc->chip->startup(irq); | 662 | desc->chip->startup(irq); |
663 | } | 663 | } |
664 | spin_unlock_irqrestore(&desc->lock, flags); | 664 | raw_spin_unlock_irqrestore(&desc->lock, flags); |
665 | chip_bus_sync_unlock(irq, desc); | 665 | chip_bus_sync_unlock(irq, desc); |
666 | } | 666 | } |
667 | EXPORT_SYMBOL_GPL(__set_irq_handler); | 667 | EXPORT_SYMBOL_GPL(__set_irq_handler); |
@@ -692,9 +692,9 @@ void __init set_irq_noprobe(unsigned int irq) | |||
692 | return; | 692 | return; |
693 | } | 693 | } |
694 | 694 | ||
695 | spin_lock_irqsave(&desc->lock, flags); | 695 | raw_spin_lock_irqsave(&desc->lock, flags); |
696 | desc->status |= IRQ_NOPROBE; | 696 | desc->status |= IRQ_NOPROBE; |
697 | spin_unlock_irqrestore(&desc->lock, flags); | 697 | raw_spin_unlock_irqrestore(&desc->lock, flags); |
698 | } | 698 | } |
699 | 699 | ||
700 | void __init set_irq_probe(unsigned int irq) | 700 | void __init set_irq_probe(unsigned int irq) |
@@ -707,7 +707,7 @@ void __init set_irq_probe(unsigned int irq) | |||
707 | return; | 707 | return; |
708 | } | 708 | } |
709 | 709 | ||
710 | spin_lock_irqsave(&desc->lock, flags); | 710 | raw_spin_lock_irqsave(&desc->lock, flags); |
711 | desc->status &= ~IRQ_NOPROBE; | 711 | desc->status &= ~IRQ_NOPROBE; |
712 | spin_unlock_irqrestore(&desc->lock, flags); | 712 | raw_spin_unlock_irqrestore(&desc->lock, flags); |
713 | } | 713 | } |