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path: root/drivers/parisc/iosapic.c
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Diffstat (limited to 'drivers/parisc/iosapic.c')
-rw-r--r--drivers/parisc/iosapic.c56
1 files changed, 12 insertions, 44 deletions
diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
index c76836727cae..a3120a09c43d 100644
--- a/drivers/parisc/iosapic.c
+++ b/drivers/parisc/iosapic.c
@@ -615,17 +615,10 @@ iosapic_set_irt_data( struct vector_info *vi, u32 *dp0, u32 *dp1)
}
-static struct vector_info *iosapic_get_vector(unsigned int irq)
-{
- struct irq_desc *desc = irq_to_desc(irq);
-
- return desc->chip_data;
-}
-
-static void iosapic_disable_irq(unsigned int irq)
+static void iosapic_mask_irq(unsigned int irq)
{
unsigned long flags;
- struct vector_info *vi = iosapic_get_vector(irq);
+ struct vector_info *vi = get_irq_chip_data(irq);
u32 d0, d1;
spin_lock_irqsave(&iosapic_lock, flags);
@@ -635,9 +628,9 @@ 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 = iosapic_get_vector(irq);
+ struct vector_info *vi = get_irq_chip_data(irq);
u32 d0, d1;
/* data is initialized by fixup_irq */
@@ -676,36 +669,14 @@ 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 = iosapic_get_vector(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_end_irq(irq);
-}
-
-static unsigned int iosapic_startup_irq(unsigned int irq)
-{
- iosapic_enable_irq(irq);
- return 0;
+ cpu_eoi_irq(irq);
}
#ifdef CONFIG_SMP
static int iosapic_set_affinity_irq(unsigned int irq,
const struct cpumask *dest)
{
- struct vector_info *vi = iosapic_get_vector(irq);
+ struct vector_info *vi = get_irq_chip_data(irq);
u32 d0, d1, dummy_d0;
unsigned long flags;
int dest_cpu;
@@ -730,13 +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
@@ -891,8 +859,8 @@ void *iosapic_register(unsigned long hpa)
isi->isi_version = iosapic_rd_version(isi);
isi->isi_num_vectors = IOSAPIC_IRDT_MAX_ENTRY(isi->isi_version) + 1;
- vip = isi->isi_vector = (struct vector_info *)
- kzalloc(sizeof(struct vector_info) * isi->isi_num_vectors, GFP_KERNEL);
+ vip = isi->isi_vector = kcalloc(isi->isi_num_vectors,
+ sizeof(struct vector_info), GFP_KERNEL);
if (vip == NULL) {
kfree(isi);
return NULL;

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