diff options
| author | Kumar Gala <galak@kernel.crashing.org> | 2007-02-12 21:17:37 -0600 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2007-02-12 21:17:37 -0600 |
| commit | 06d8bf64ba25db42fcc60d2da2268ac22af94e77 (patch) | |
| tree | eb80eebf368957df18c2a4c0ee02897e0a9b06d2 /kernel/irq/chip.c | |
| parent | 8f68abbfd9703e58920ff07d314a48654ed0bc3b (diff) | |
| parent | 5986a2ec35836a878350c54af4bd91b1de6abc59 (diff) | |
Merge branch 'master' into for_paulus
Diffstat (limited to 'kernel/irq/chip.c')
| -rw-r--r-- | kernel/irq/chip.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c index d27b25855743..475e8a71bcdc 100644 --- a/kernel/irq/chip.c +++ b/kernel/irq/chip.c @@ -39,6 +39,7 @@ void dynamic_irq_init(unsigned int irq) desc->chip = &no_irq_chip; desc->handle_irq = handle_bad_irq; desc->depth = 1; + desc->msi_desc = NULL; desc->handler_data = NULL; desc->chip_data = NULL; desc->action = NULL; @@ -74,6 +75,9 @@ void dynamic_irq_cleanup(unsigned int irq) WARN_ON(1); return; } + desc->msi_desc = NULL; + desc->handler_data = NULL; + desc->chip_data = NULL; desc->handle_irq = handle_bad_irq; desc->chip = &no_irq_chip; spin_unlock_irqrestore(&desc->lock, flags); @@ -162,6 +166,30 @@ int set_irq_data(unsigned int irq, void *data) EXPORT_SYMBOL(set_irq_data); /** + * set_irq_data - set irq type data for an irq + * @irq: Interrupt number + * @data: Pointer to interrupt specific data + * + * Set the hardware irq controller data for an irq + */ +int set_irq_msi(unsigned int irq, struct msi_desc *entry) +{ + struct irq_desc *desc; + unsigned long flags; + + if (irq >= NR_IRQS) { + printk(KERN_ERR + "Trying to install msi data for IRQ%d\n", irq); + return -EINVAL; + } + desc = irq_desc + irq; + spin_lock_irqsave(&desc->lock, flags); + desc->msi_desc = entry; + spin_unlock_irqrestore(&desc->lock, flags); + return 0; +} + +/** * set_irq_chip_data - set irq chip data for an irq * @irq: Interrupt number * @data: Pointer to chip specific data |