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Diffstat (limited to 'kernel/irq/chip.c')
-rw-r--r--kernel/irq/chip.c40
1 files changed, 19 insertions, 21 deletions
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 9283d3300ea9..e00bdc56269f 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -140,27 +140,25 @@ EXPORT_SYMBOL_GPL(irq_get_irq_data);
140 140
141static void irq_state_clr_disabled(struct irq_desc *desc) 141static void irq_state_clr_disabled(struct irq_desc *desc)
142{ 142{
143 desc->istate &= ~IRQS_DISABLED;
144 irqd_clear(&desc->irq_data, IRQD_IRQ_DISABLED); 143 irqd_clear(&desc->irq_data, IRQD_IRQ_DISABLED);
145 irq_compat_clr_disabled(desc); 144 irq_compat_clr_disabled(desc);
146} 145}
147 146
148static void irq_state_set_disabled(struct irq_desc *desc) 147static void irq_state_set_disabled(struct irq_desc *desc)
149{ 148{
150 desc->istate |= IRQS_DISABLED;
151 irqd_set(&desc->irq_data, IRQD_IRQ_DISABLED); 149 irqd_set(&desc->irq_data, IRQD_IRQ_DISABLED);
152 irq_compat_set_disabled(desc); 150 irq_compat_set_disabled(desc);
153} 151}
154 152
155static void irq_state_clr_masked(struct irq_desc *desc) 153static void irq_state_clr_masked(struct irq_desc *desc)
156{ 154{
157 desc->istate &= ~IRQS_MASKED; 155 irqd_clear(&desc->irq_data, IRQD_IRQ_MASKED);
158 irq_compat_clr_masked(desc); 156 irq_compat_clr_masked(desc);
159} 157}
160 158
161static void irq_state_set_masked(struct irq_desc *desc) 159static void irq_state_set_masked(struct irq_desc *desc)
162{ 160{
163 desc->istate |= IRQS_MASKED; 161 irqd_set(&desc->irq_data, IRQD_IRQ_MASKED);
164 irq_compat_set_masked(desc); 162 irq_compat_set_masked(desc);
165} 163}
166 164
@@ -380,11 +378,11 @@ void handle_nested_irq(unsigned int irq)
380 kstat_incr_irqs_this_cpu(irq, desc); 378 kstat_incr_irqs_this_cpu(irq, desc);
381 379
382 action = desc->action; 380 action = desc->action;
383 if (unlikely(!action || (desc->istate & IRQS_DISABLED))) 381 if (unlikely(!action || irqd_irq_disabled(&desc->irq_data)))
384 goto out_unlock; 382 goto out_unlock;
385 383
386 irq_compat_set_progress(desc); 384 irq_compat_set_progress(desc);
387 desc->istate |= IRQS_INPROGRESS; 385 irqd_set(&desc->irq_data, IRQD_IRQ_INPROGRESS);
388 raw_spin_unlock_irq(&desc->lock); 386 raw_spin_unlock_irq(&desc->lock);
389 387
390 action_ret = action->thread_fn(action->irq, action->dev_id); 388 action_ret = action->thread_fn(action->irq, action->dev_id);
@@ -392,7 +390,7 @@ void handle_nested_irq(unsigned int irq)
392 note_interrupt(irq, desc, action_ret); 390 note_interrupt(irq, desc, action_ret);
393 391
394 raw_spin_lock_irq(&desc->lock); 392 raw_spin_lock_irq(&desc->lock);
395 desc->istate &= ~IRQS_INPROGRESS; 393 irqd_clear(&desc->irq_data, IRQD_IRQ_INPROGRESS);
396 irq_compat_clr_progress(desc); 394 irq_compat_clr_progress(desc);
397 395
398out_unlock: 396out_unlock:
@@ -424,14 +422,14 @@ handle_simple_irq(unsigned int irq, struct irq_desc *desc)
424{ 422{
425 raw_spin_lock(&desc->lock); 423 raw_spin_lock(&desc->lock);
426 424
427 if (unlikely(desc->istate & IRQS_INPROGRESS)) 425 if (unlikely(irqd_irq_inprogress(&desc->irq_data)))
428 if (!irq_check_poll(desc)) 426 if (!irq_check_poll(desc))
429 goto out_unlock; 427 goto out_unlock;
430 428
431 desc->istate &= ~(IRQS_REPLAY | IRQS_WAITING); 429 desc->istate &= ~(IRQS_REPLAY | IRQS_WAITING);
432 kstat_incr_irqs_this_cpu(irq, desc); 430 kstat_incr_irqs_this_cpu(irq, desc);
433 431
434 if (unlikely(!desc->action || (desc->istate & IRQS_DISABLED))) 432 if (unlikely(!desc->action || irqd_irq_disabled(&desc->irq_data)))
435 goto out_unlock; 433 goto out_unlock;
436 434
437 handle_irq_event(desc); 435 handle_irq_event(desc);
@@ -456,7 +454,7 @@ handle_level_irq(unsigned int irq, struct irq_desc *desc)
456 raw_spin_lock(&desc->lock); 454 raw_spin_lock(&desc->lock);
457 mask_ack_irq(desc); 455 mask_ack_irq(desc);
458 456
459 if (unlikely(desc->istate & IRQS_INPROGRESS)) 457 if (unlikely(irqd_irq_inprogress(&desc->irq_data)))
460 if (!irq_check_poll(desc)) 458 if (!irq_check_poll(desc))
461 goto out_unlock; 459 goto out_unlock;
462 460
@@ -467,12 +465,12 @@ handle_level_irq(unsigned int irq, struct irq_desc *desc)
467 * If its disabled or no action available 465 * If its disabled or no action available
468 * keep it masked and get out of here 466 * keep it masked and get out of here
469 */ 467 */
470 if (unlikely(!desc->action || (desc->istate & IRQS_DISABLED))) 468 if (unlikely(!desc->action || irqd_irq_disabled(&desc->irq_data)))
471 goto out_unlock; 469 goto out_unlock;
472 470
473 handle_irq_event(desc); 471 handle_irq_event(desc);
474 472
475 if (!(desc->istate & (IRQS_DISABLED | IRQS_ONESHOT))) 473 if (!irqd_irq_disabled(&desc->irq_data) && !(desc->istate & IRQS_ONESHOT))
476 unmask_irq(desc); 474 unmask_irq(desc);
477out_unlock: 475out_unlock:
478 raw_spin_unlock(&desc->lock); 476 raw_spin_unlock(&desc->lock);
@@ -504,7 +502,7 @@ handle_fasteoi_irq(unsigned int irq, struct irq_desc *desc)
504{ 502{
505 raw_spin_lock(&desc->lock); 503 raw_spin_lock(&desc->lock);
506 504
507 if (unlikely(desc->istate & IRQS_INPROGRESS)) 505 if (unlikely(irqd_irq_inprogress(&desc->irq_data)))
508 if (!irq_check_poll(desc)) 506 if (!irq_check_poll(desc))
509 goto out; 507 goto out;
510 508
@@ -515,7 +513,7 @@ handle_fasteoi_irq(unsigned int irq, struct irq_desc *desc)
515 * If its disabled or no action available 513 * If its disabled or no action available
516 * then mask it and get out of here: 514 * then mask it and get out of here:
517 */ 515 */
518 if (unlikely(!desc->action || (desc->istate & IRQS_DISABLED))) { 516 if (unlikely(!desc->action || irqd_irq_disabled(&desc->irq_data))) {
519 irq_compat_set_pending(desc); 517 irq_compat_set_pending(desc);
520 desc->istate |= IRQS_PENDING; 518 desc->istate |= IRQS_PENDING;
521 mask_irq(desc); 519 mask_irq(desc);
@@ -566,8 +564,8 @@ handle_edge_irq(unsigned int irq, struct irq_desc *desc)
566 * we shouldn't process the IRQ. Mark it pending, handle 564 * we shouldn't process the IRQ. Mark it pending, handle
567 * the necessary masking and go out 565 * the necessary masking and go out
568 */ 566 */
569 if (unlikely((desc->istate & (IRQS_DISABLED | IRQS_INPROGRESS) || 567 if (unlikely(irqd_irq_disabled(&desc->irq_data) ||
570 !desc->action))) { 568 irqd_irq_inprogress(&desc->irq_data) || !desc->action)) {
571 if (!irq_check_poll(desc)) { 569 if (!irq_check_poll(desc)) {
572 irq_compat_set_pending(desc); 570 irq_compat_set_pending(desc);
573 desc->istate |= IRQS_PENDING; 571 desc->istate |= IRQS_PENDING;
@@ -592,15 +590,15 @@ handle_edge_irq(unsigned int irq, struct irq_desc *desc)
592 * Renable it, if it was not disabled in meantime. 590 * Renable it, if it was not disabled in meantime.
593 */ 591 */
594 if (unlikely(desc->istate & IRQS_PENDING)) { 592 if (unlikely(desc->istate & IRQS_PENDING)) {
595 if (!(desc->istate & IRQS_DISABLED) && 593 if (!irqd_irq_disabled(&desc->irq_data) &&
596 (desc->istate & IRQS_MASKED)) 594 irqd_irq_masked(&desc->irq_data))
597 unmask_irq(desc); 595 unmask_irq(desc);
598 } 596 }
599 597
600 handle_irq_event(desc); 598 handle_irq_event(desc);
601 599
602 } while ((desc->istate & IRQS_PENDING) && 600 } while ((desc->istate & IRQS_PENDING) &&
603 !(desc->istate & IRQS_DISABLED)); 601 !irqd_irq_disabled(&desc->irq_data));
604 602
605out_unlock: 603out_unlock:
606 raw_spin_unlock(&desc->lock); 604 raw_spin_unlock(&desc->lock);
@@ -720,7 +718,7 @@ void irq_cpu_online(void)
720 chip = irq_data_get_irq_chip(&desc->irq_data); 718 chip = irq_data_get_irq_chip(&desc->irq_data);
721 if (chip && chip->irq_cpu_online && 719 if (chip && chip->irq_cpu_online &&
722 (!(chip->flags & IRQCHIP_ONOFFLINE_ENABLED) || 720 (!(chip->flags & IRQCHIP_ONOFFLINE_ENABLED) ||
723 !(desc->istate & IRQS_DISABLED))) 721 !irqd_irq_disabled(&desc->irq_data)))
724 chip->irq_cpu_online(&desc->irq_data); 722 chip->irq_cpu_online(&desc->irq_data);
725 723
726 raw_spin_unlock_irqrestore(&desc->lock, flags); 724 raw_spin_unlock_irqrestore(&desc->lock, flags);
@@ -750,7 +748,7 @@ void irq_cpu_offline(void)
750 chip = irq_data_get_irq_chip(&desc->irq_data); 748 chip = irq_data_get_irq_chip(&desc->irq_data);
751 if (chip && chip->irq_cpu_offline && 749 if (chip && chip->irq_cpu_offline &&
752 (!(chip->flags & IRQCHIP_ONOFFLINE_ENABLED) || 750 (!(chip->flags & IRQCHIP_ONOFFLINE_ENABLED) ||
753 !(desc->istate & IRQS_DISABLED))) 751 !irqd_irq_disabled(&desc->irq_data)))
754 chip->irq_cpu_offline(&desc->irq_data); 752 chip->irq_cpu_offline(&desc->irq_data);
755 753
756 raw_spin_unlock_irqrestore(&desc->lock, flags); 754 raw_spin_unlock_irqrestore(&desc->lock, flags);