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>

diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 48aa711..d7d94b8 100644 (file)
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -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);
        }

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index d9f5148..9383063 100644 (file)
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -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,
 };
 
 

diff --git a/drivers/parisc/eisa.c b/drivers/parisc/eisa.c
index 1211974..e860038 100644 (file)
--- a/drivers/parisc/eisa.c
+++ b/drivers/parisc/eisa.c
@@ -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;

diff --git a/drivers/parisc/gsc.c b/drivers/parisc/gsc.c
index e605298..772b193 100644 (file)
--- a/drivers/parisc/gsc.c
+++ b/drivers/parisc/gsc.c
@@ -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++;

diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
index a3120a0..0327894 100644 (file)
--- a/drivers/parisc/iosapic.c
+++ b/drivers/parisc/iosapic.c
@@ -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

diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
index 0846daf..2824153 100644 (file)
--- a/drivers/parisc/superio.c
+++ b/drivers/parisc/superio.c
@@ -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);
        }
 
        /*