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parisc: convert the rest of the irq handlers to simple/percpu 

The generic conversion eliminates the spurious no_ack and no_end
routines, converts all the cascaded handlers to handle_simple_irq() and
makes iosapic use a modified handle_percpu_irq() to become the same as
the CPU irq's.  This isn't an essential change, but it eliminates the
mask/unmask overhead of handle_level_irq().

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Tested-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
This commit is contained in:
James Bottomley 2010-12-03 02:01:05 +00:00 committed by Kyle McMartin
parent d16cd297d2
commit 51890613f2
6 changed files with 12 additions and 11 deletions
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5
arch/parisc/kernel/irq.c
View File

@ -75,9 +75,6 @@ static void cpu_unmask_irq(unsigned int irq)
smp_send_all_nop();
}
void no_ack_irq(unsigned int irq) { }
void no_end_irq(unsigned int irq) { }
void cpu_ack_irq(unsigned int irq)
{
unsigned long mask = EIEM_MASK(irq);
@ -241,7 +238,7 @@ 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, handle_level_irq);
set_irq_chip_and_handler(irq, type, handle_percpu_irq);
set_irq_chip_data(irq, data);
cpu_unmask_irq(irq);
}

1
drivers/parisc/dino.c
View File

@ -349,7 +349,6 @@ static struct irq_chip dino_interrupt_type = {
.name = "GSC-PCI",
.unmask = dino_unmask_irq,
.mask = dino_mask_irq,
.ack = no_ack_irq,
};

3
drivers/parisc/eisa.c
View File

@ -186,7 +186,6 @@ static struct irq_chip eisa_interrupt_type = {
.name = "EISA",
.unmask = eisa_unmask_irq,
.mask = eisa_mask_irq,
.ack = no_ack_irq,
};
static irqreturn_t eisa_irq(int wax_irq, void *intr_dev)
@ -340,7 +339,7 @@ static int __init eisa_probe(struct parisc_device *dev)
setup_irq(2, &irq2_action);
for (i = 0; i < 16; i++) {
set_irq_chip_and_handler(i, &eisa_interrupt_type,
handle_level_irq);
handle_simple_irq);
}
EISA_bus = 1;

3
drivers/parisc/gsc.c
View File

@ -143,7 +143,6 @@ static struct irq_chip gsc_asic_interrupt_type = {
.name = "GSC-ASIC",
.unmask = gsc_asic_unmask_irq,
.mask = gsc_asic_mask_irq,
.ack = no_ack_irq,
};
int gsc_assign_irq(struct irq_chip *type, void *data)
@ -153,7 +152,7 @@ int gsc_assign_irq(struct irq_chip *type, void *data)
if (irq > GSC_IRQ_MAX)
return NO_IRQ;
set_irq_chip_and_handler(irq, type, handle_level_irq);
set_irq_chip_and_handler(irq, type, handle_simple_irq);
set_irq_chip_data(irq, data);
return irq++;

8
drivers/parisc/iosapic.c
View File

@ -669,6 +669,13 @@ 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);
}
static void iosapic_eoi_irq(unsigned int irq)
{
struct vector_info *vi = get_irq_chip_data(irq);
iosapic_eoi(vi->eoi_addr, vi->eoi_data);
cpu_eoi_irq(irq);
}
@ -705,6 +712,7 @@ static struct irq_chip iosapic_interrupt_type = {
.unmask = iosapic_unmask_irq,
.mask = iosapic_mask_irq,
.ack = cpu_ack_irq,
.eoi = iosapic_eoi_irq,
#ifdef CONFIG_SMP
.set_affinity = iosapic_set_affinity_irq,
#endif

3
drivers/parisc/superio.c
View File

@ -323,7 +323,6 @@ static struct irq_chip superio_interrupt_type = {
.name = SUPERIO,
.unmask = superio_unmask_irq,
.mask = superio_mask_irq,
.ack = no_ack_irq,
};
#ifdef DEBUG_SUPERIO_INIT
@ -354,7 +353,7 @@ int superio_fixup_irq(struct pci_dev *pcidev)
#endif
for (i = 0; i < 16; i++) {
set_irq_chip_and_handler(i, &superio_interrupt_type, handle_level_irq);
set_irq_chip_and_handler(i, &superio_interrupt_type, handle_simple_irq);
}
/*