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[IA64] Use dynamic irq for iosapic interrupts 

Use create_irq()/destroy_irq() for iosapic interrupts.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Yasuaki Ishimatsu 2007-07-17 21:21:48 +09:00 committed by Tony Luck
parent c1726d6f1a
commit eb21ab2495
1 changed files with 15 additions and 24 deletions
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39
arch/ia64/kernel/iosapic.c
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@ -533,12 +533,13 @@ static int iosapic_find_sharable_vector (unsigned long trigger,
static void __init
iosapic_reassign_vector (int vector)
{
int new_vector;
int irq, new_vector;
if (!list_empty(&iosapic_intr_info[vector].rtes)) {
new_vector = assign_irq_vector(AUTO_ASSIGN);
if (new_vector < 0)
irq = create_irq();
if (irq < 0)
panic("%s: out of interrupt vectors!\n", __FUNCTION__);
new_vector = irq_to_vector(irq);
printk(KERN_INFO "Reassigning vector %d to %d\n",
vector, new_vector);
memcpy(&iosapic_intr_info[new_vector], &iosapic_intr_info[vector],
@ -753,7 +754,7 @@ int
iosapic_register_intr (unsigned int gsi,
unsigned long polarity, unsigned long trigger)
{
int vector, mask = 1, err;
int irq, vector, mask = 1, err;
unsigned int dest;
unsigned long flags;
struct iosapic_rte_info *rte;
@ -773,12 +774,13 @@ iosapic_register_intr (unsigned int gsi,
}
/* If vector is running out, we try to find a sharable vector */
vector = assign_irq_vector(AUTO_ASSIGN);
if (vector < 0) {
irq = create_irq();
if (irq < 0) {
vector = iosapic_find_sharable_vector(trigger, polarity);
if (vector < 0)
goto unlock_iosapic_lock;
}
} else
vector = irq_to_vector(irq);
spin_lock(&irq_desc[vector].lock);
dest = get_target_cpu(gsi, vector);
@ -873,30 +875,18 @@ iosapic_unregister_intr (unsigned int gsi)
if (list_empty(&iosapic_intr_info[vector].rtes)) {
/* Sanity check */
BUG_ON(iosapic_intr_info[vector].count);
/* Clear the interrupt controller descriptor */
idesc->chip = &no_irq_type;
#ifdef CONFIG_SMP
/* Clear affinity */
cpus_setall(idesc->affinity);
#endif
/* Clear the interrupt information */
memset(&iosapic_intr_info[vector], 0,
sizeof(struct iosapic_intr_info));
iosapic_intr_info[vector].low32 |= IOSAPIC_MASK;
INIT_LIST_HEAD(&iosapic_intr_info[vector].rtes);
if (idesc->action) {
printk(KERN_ERR
"interrupt handlers still exist on IRQ %u\n",
irq);
WARN_ON(1);
}
/* Free the interrupt vector */
free_irq_vector(vector);
/* Destroy IRQ */
destroy_irq(irq);
}
out:
spin_unlock_irqrestore(&iosapic_lock, flags);
@ -912,7 +902,7 @@ iosapic_register_platform_intr (u32 int_type, unsigned int gsi,
{
static const char * const name[] = {"unknown", "PMI", "INIT", "CPEI"};
unsigned char delivery;
int vector, mask = 0;
int irq, vector, mask = 0;
unsigned int dest = ((id << 8) | eid) & 0xffff;
switch (int_type) {
@ -926,9 +916,10 @@ iosapic_register_platform_intr (u32 int_type, unsigned int gsi,
delivery = IOSAPIC_PMI;
break;
case ACPI_INTERRUPT_INIT:
vector = assign_irq_vector(AUTO_ASSIGN);
if (vector < 0)
irq = create_irq();
if (irq < 0)
panic("%s: out of interrupt vectors!\n", __FUNCTION__);
vector = irq_to_vector(irq);
delivery = IOSAPIC_INIT;
break;
case ACPI_INTERRUPT_CPEI: