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Diffstat (limited to 'arch/ia64/kernel/iosapic.c')
-rw-r--r--arch/ia64/kernel/iosapic.c60
1 files changed, 9 insertions, 51 deletions
diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c
index 7ded76658d2d..22c38404f539 100644
--- a/arch/ia64/kernel/iosapic.c
+++ b/arch/ia64/kernel/iosapic.c
@@ -108,10 +108,6 @@
#define DBG(fmt...)
#endif
-#define NR_PREALLOCATE_RTE_ENTRIES \
- (PAGE_SIZE / sizeof(struct iosapic_rte_info))
-#define RTE_PREALLOCATED (1)
-
static DEFINE_SPINLOCK(iosapic_lock);
/*
@@ -136,7 +132,6 @@ struct iosapic_rte_info {
struct list_head rte_list; /* RTEs sharing the same vector */
char rte_index; /* IOSAPIC RTE index */
int refcnt; /* reference counter */
- unsigned int flags; /* flags */
struct iosapic *iosapic;
} ____cacheline_aligned;
@@ -155,9 +150,6 @@ static struct iosapic_intr_info {
static unsigned char pcat_compat __devinitdata; /* 8259 compatibility flag */
-static int iosapic_kmalloc_ok;
-static LIST_HEAD(free_rte_list);
-
static inline void
iosapic_write(struct iosapic *iosapic, unsigned int reg, u32 val)
{
@@ -394,7 +386,7 @@ iosapic_startup_level_irq (unsigned int irq)
}
static void
-iosapic_end_level_irq (unsigned int irq)
+iosapic_unmask_level_irq (unsigned int irq)
{
ia64_vector vec = irq_to_vector(irq);
struct iosapic_rte_info *rte;
@@ -404,7 +396,8 @@ iosapic_end_level_irq (unsigned int irq)
if (unlikely(irq_desc[irq].status & IRQ_MOVE_PENDING)) {
do_unmask_irq = 1;
mask_irq(irq);
- }
+ } else
+ unmask_irq(irq);
list_for_each_entry(rte, &iosapic_intr_info[irq].rtes, rte_list)
iosapic_eoi(rte->iosapic->addr, vec);
@@ -427,9 +420,8 @@ static struct irq_chip irq_type_iosapic_level = {
.enable = iosapic_enable_level_irq,
.disable = iosapic_disable_level_irq,
.ack = iosapic_ack_level_irq,
- .end = iosapic_end_level_irq,
.mask = mask_irq,
- .unmask = unmask_irq,
+ .unmask = iosapic_unmask_level_irq,
.set_affinity = iosapic_set_affinity
};
@@ -552,37 +544,6 @@ iosapic_reassign_vector (int irq)
}
}
-static struct iosapic_rte_info * __init_refok iosapic_alloc_rte (void)
-{
- int i;
- struct iosapic_rte_info *rte;
- int preallocated = 0;
-
- if (!iosapic_kmalloc_ok && list_empty(&free_rte_list)) {
- rte = alloc_bootmem(sizeof(struct iosapic_rte_info) *
- NR_PREALLOCATE_RTE_ENTRIES);
- for (i = 0; i < NR_PREALLOCATE_RTE_ENTRIES; i++, rte++)
- list_add(&rte->rte_list, &free_rte_list);
- }
-
- if (!list_empty(&free_rte_list)) {
- rte = list_entry(free_rte_list.next, struct iosapic_rte_info,
- rte_list);
- list_del(&rte->rte_list);
- preallocated++;
- } else {
- rte = kmalloc(sizeof(struct iosapic_rte_info), GFP_ATOMIC);
- if (!rte)
- return NULL;
- }
-
- memset(rte, 0, sizeof(struct iosapic_rte_info));
- if (preallocated)
- rte->flags |= RTE_PREALLOCATED;
-
- return rte;
-}
-
static inline int irq_is_shared (int irq)
{
return (iosapic_intr_info[irq].count > 1);
@@ -615,7 +576,7 @@ register_intr (unsigned int gsi, int irq, unsigned char delivery,
rte = find_rte(irq, gsi);
if (!rte) {
- rte = iosapic_alloc_rte();
+ rte = kzalloc(sizeof (*rte), GFP_ATOMIC);
if (!rte) {
printk(KERN_WARNING "%s: cannot allocate memory\n",
__func__);
@@ -658,6 +619,10 @@ register_intr (unsigned int gsi, int irq, unsigned char delivery,
idesc->chip->name, irq_type->name);
idesc->chip = irq_type;
}
+ if (trigger == IOSAPIC_EDGE)
+ __set_irq_handler_unlocked(irq, handle_edge_irq);
+ else
+ __set_irq_handler_unlocked(irq, handle_level_irq);
return 0;
}
@@ -1161,10 +1126,3 @@ map_iosapic_to_node(unsigned int gsi_base, int node)
return;
}
#endif
-
-static int __init iosapic_enable_kmalloc (void)
-{
- iosapic_kmalloc_ok = 1;
- return 0;
-}
-core_initcall (iosapic_enable_kmalloc);