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parisc: convert iosapic interrupts to proper flow handlers 

Shift the ->end call (cpu eoi) from __do_IRQ into our
unmask handler. Also nuke some redundant code.

Signed-off-by: Kyle McMartin <kyle@redhat.com>
hifive-unleashed-5.1
Kyle McMartin 2010-10-14 00:38:27 -04:00
parent 4d4f681dc4
commit f3d4605977
2 changed files with 7 additions and 32 deletions
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2
arch/parisc/kernel/irq.c
View File

@ -241,7 +241,7 @@ int cpu_claim_irq(unsigned int irq, struct irq_chip *type, void *data)
/* for iosapic interrupts */
if (type) {
set_irq_chip_and_handler(irq, type, parisc_do_IRQ);
set_irq_chip_and_handler(irq, type, handle_level_irq);
set_irq_chip_data(irq, data);
cpu_unmask_irq(irq);
}

37
drivers/parisc/iosapic.c
View File

@ -615,7 +615,7 @@ iosapic_set_irt_data( struct vector_info *vi, u32 *dp0, u32 *dp1)
}
static void iosapic_disable_irq(unsigned int irq)
static void iosapic_mask_irq(unsigned int irq)
{
unsigned long flags;
struct vector_info *vi = get_irq_chip_data(irq);
@ -628,7 +628,7 @@ static void iosapic_disable_irq(unsigned int irq)
spin_unlock_irqrestore(&iosapic_lock, flags);
}
static void iosapic_enable_irq(unsigned int irq)
static void iosapic_unmask_irq(unsigned int irq)
{
struct vector_info *vi = get_irq_chip_data(irq);
u32 d0, d1;
@ -669,31 +669,9 @@ printk("\n");
DBG(KERN_DEBUG "enable_irq(%d): eoi(%p, 0x%x)\n", irq,
vi->eoi_addr, vi->eoi_data);
iosapic_eoi(vi->eoi_addr, vi->eoi_data);
}
/*
* PARISC only supports PCI devices below I/O SAPIC.
* PCI only supports level triggered in order to share IRQ lines.
* ergo I/O SAPIC must always issue EOI on parisc.
*
* i386/ia64 support ISA devices and have to deal with
* edge-triggered interrupts too.
*/
static void iosapic_end_irq(unsigned int irq)
{
struct vector_info *vi = get_irq_chip_data(irq);
DBG(KERN_DEBUG "end_irq(%d): eoi(%p, 0x%x)\n", irq,
vi->eoi_addr, vi->eoi_data);
iosapic_eoi(vi->eoi_addr, vi->eoi_data);
cpu_eoi_irq(irq);
}
static unsigned int iosapic_startup_irq(unsigned int irq)
{
iosapic_enable_irq(irq);
return 0;
}
#ifdef CONFIG_SMP
static int iosapic_set_affinity_irq(unsigned int irq,
const struct cpumask *dest)
@ -723,13 +701,10 @@ static int iosapic_set_affinity_irq(unsigned int irq,
#endif
static struct irq_chip iosapic_interrupt_type = {
.name = "IO-SAPIC-level",
.startup = iosapic_startup_irq,
.shutdown = iosapic_disable_irq,
.enable = iosapic_enable_irq,
.disable = iosapic_disable_irq,
.ack = cpu_ack_irq,
.end = iosapic_end_irq,
.name = "IO-SAPIC-level",
.unmask = iosapic_unmask_irq,
.mask = iosapic_mask_irq,
.ack = cpu_ack_irq,
#ifdef CONFIG_SMP
.set_affinity = iosapic_set_affinity_irq,
#endif