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authorRusty Russell <rusty@rustcorp.com.au>2008-12-31 07:35:57 -0500
committerRusty Russell <rusty@rustcorp.com.au>2008-12-31 07:35:57 -0500
commit2ca1a615835d9f4990f42102ab1f2ef434e7e89c (patch)
tree726cf3d5f29a6c66c44e4bd68e7ebed2fd83d059 /kernel/irq/chip.c
parente12f0102ac81d660c9f801d0a0e10ccf4537a9de (diff)
parent6a94cb73064c952255336cc57731904174b2c58f (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts: arch/x86/kernel/io_apic.c
Diffstat (limited to 'kernel/irq/chip.c')
-rw-r--r--kernel/irq/chip.c16
1 files changed, 13 insertions, 3 deletions
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 58d8e31daa49..f63c706d25e1 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -24,9 +24,10 @@
24 */ 24 */
25void dynamic_irq_init(unsigned int irq) 25void dynamic_irq_init(unsigned int irq)
26{ 26{
27 struct irq_desc *desc = irq_to_desc(irq); 27 struct irq_desc *desc;
28 unsigned long flags; 28 unsigned long flags;
29 29
30 desc = irq_to_desc(irq);
30 if (!desc) { 31 if (!desc) {
31 WARN(1, KERN_ERR "Trying to initialize invalid IRQ%d\n", irq); 32 WARN(1, KERN_ERR "Trying to initialize invalid IRQ%d\n", irq);
32 return; 33 return;
@@ -124,6 +125,7 @@ int set_irq_type(unsigned int irq, unsigned int type)
124 return -ENODEV; 125 return -ENODEV;
125 } 126 }
126 127
128 type &= IRQ_TYPE_SENSE_MASK;
127 if (type == IRQ_TYPE_NONE) 129 if (type == IRQ_TYPE_NONE)
128 return 0; 130 return 0;
129 131
@@ -352,6 +354,7 @@ handle_level_irq(unsigned int irq, struct irq_desc *desc)
352 354
353 spin_lock(&desc->lock); 355 spin_lock(&desc->lock);
354 mask_ack_irq(desc, irq); 356 mask_ack_irq(desc, irq);
357 desc = irq_remap_to_desc(irq, desc);
355 358
356 if (unlikely(desc->status & IRQ_INPROGRESS)) 359 if (unlikely(desc->status & IRQ_INPROGRESS))
357 goto out_unlock; 360 goto out_unlock;
@@ -429,6 +432,7 @@ handle_fasteoi_irq(unsigned int irq, struct irq_desc *desc)
429 desc->status &= ~IRQ_INPROGRESS; 432 desc->status &= ~IRQ_INPROGRESS;
430out: 433out:
431 desc->chip->eoi(irq); 434 desc->chip->eoi(irq);
435 desc = irq_remap_to_desc(irq, desc);
432 436
433 spin_unlock(&desc->lock); 437 spin_unlock(&desc->lock);
434} 438}
@@ -465,12 +469,14 @@ handle_edge_irq(unsigned int irq, struct irq_desc *desc)
465 !desc->action)) { 469 !desc->action)) {
466 desc->status |= (IRQ_PENDING | IRQ_MASKED); 470 desc->status |= (IRQ_PENDING | IRQ_MASKED);
467 mask_ack_irq(desc, irq); 471 mask_ack_irq(desc, irq);
472 desc = irq_remap_to_desc(irq, desc);
468 goto out_unlock; 473 goto out_unlock;
469 } 474 }
470 kstat_incr_irqs_this_cpu(irq, desc); 475 kstat_incr_irqs_this_cpu(irq, desc);
471 476
472 /* Start handling the irq */ 477 /* Start handling the irq */
473 desc->chip->ack(irq); 478 desc->chip->ack(irq);
479 desc = irq_remap_to_desc(irq, desc);
474 480
475 /* Mark the IRQ currently in progress.*/ 481 /* Mark the IRQ currently in progress.*/
476 desc->status |= IRQ_INPROGRESS; 482 desc->status |= IRQ_INPROGRESS;
@@ -531,8 +537,10 @@ handle_percpu_irq(unsigned int irq, struct irq_desc *desc)
531 if (!noirqdebug) 537 if (!noirqdebug)
532 note_interrupt(irq, desc, action_ret); 538 note_interrupt(irq, desc, action_ret);
533 539
534 if (desc->chip->eoi) 540 if (desc->chip->eoi) {
535 desc->chip->eoi(irq); 541 desc->chip->eoi(irq);
542 desc = irq_remap_to_desc(irq, desc);
543 }
536} 544}
537 545
538void 546void
@@ -567,8 +575,10 @@ __set_irq_handler(unsigned int irq, irq_flow_handler_t handle, int is_chained,
567 575
568 /* Uninstall? */ 576 /* Uninstall? */
569 if (handle == handle_bad_irq) { 577 if (handle == handle_bad_irq) {
570 if (desc->chip != &no_irq_chip) 578 if (desc->chip != &no_irq_chip) {
571 mask_ack_irq(desc, irq); 579 mask_ack_irq(desc, irq);
580 desc = irq_remap_to_desc(irq, desc);
581 }
572 desc->status |= IRQ_DISABLED; 582 desc->status |= IRQ_DISABLED;
573 desc->depth = 1; 583 desc->depth = 1;
574 } 584 }