diff options
Diffstat (limited to 'arch/ia64/kernel/irq_ia64.c')
| -rw-r--r-- | arch/ia64/kernel/irq_ia64.c | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c index 6c4d59fd0364..a041367f043b 100644 --- a/arch/ia64/kernel/irq_ia64.c +++ b/arch/ia64/kernel/irq_ia64.c @@ -14,7 +14,6 @@ * Added CPU Hotplug handling for IPF. */ -#include <linux/config.h> #include <linux/module.h> #include <linux/jiffies.h> @@ -46,6 +45,10 @@ #define IRQ_DEBUG 0 +/* These can be overridden in platform_irq_init */ +int ia64_first_device_vector = IA64_DEF_FIRST_DEVICE_VECTOR; +int ia64_last_device_vector = IA64_DEF_LAST_DEVICE_VECTOR; + /* default base addr of IPI table */ void __iomem *ipi_base_addr = ((void __iomem *) (__IA64_UNCACHED_OFFSET | IA64_IPI_DEFAULT_BASE_ADDR)); @@ -60,7 +63,7 @@ __u8 isa_irq_to_vector_map[16] = { }; EXPORT_SYMBOL(isa_irq_to_vector_map); -static unsigned long ia64_vector_mask[BITS_TO_LONGS(IA64_NUM_DEVICE_VECTORS)]; +static unsigned long ia64_vector_mask[BITS_TO_LONGS(IA64_MAX_DEVICE_VECTORS)]; int assign_irq_vector (int irq) @@ -89,6 +92,19 @@ free_irq_vector (int vector) printk(KERN_WARNING "%s: double free!\n", __FUNCTION__); } +int +reserve_irq_vector (int vector) +{ + int pos; + + if (vector < IA64_FIRST_DEVICE_VECTOR || + vector > IA64_LAST_DEVICE_VECTOR) + return -EINVAL; + + pos = vector - IA64_FIRST_DEVICE_VECTOR; + return test_and_set_bit(pos, ia64_vector_mask); +} + #ifdef CONFIG_SMP # define IS_RESCHEDULE(vec) (vec == IA64_IPI_RESCHEDULE) #else @@ -219,7 +235,7 @@ extern irqreturn_t handle_IPI (int irq, void *dev_id, struct pt_regs *regs); static struct irqaction ipi_irqaction = { .handler = handle_IPI, - .flags = SA_INTERRUPT, + .flags = IRQF_DISABLED, .name = "IPI" }; #endif @@ -232,9 +248,9 @@ register_percpu_irq (ia64_vector vec, struct irqaction *action) for (irq = 0; irq < NR_IRQS; ++irq) if (irq_to_vector(irq) == vec) { - desc = irq_descp(irq); + desc = irq_desc + irq; desc->status |= IRQ_PER_CPU; - desc->handler = &irq_type_ia64_lsapic; + desc->chip = &irq_type_ia64_lsapic; if (action) setup_irq(irq, action); } |