summaryrefslogtreecommitdiffstats
path: root/arch/ia64/sn/kernel/irq.c
diff options
context:
space:
mode:
authorMark Maule <maule@sgi.com>2006-04-14 16:03:49 -0500
committerGreg Kroah-Hartman <gregkh@suse.de>2006-06-21 11:59:59 -0700
commit10083072bfabc40bc47306e512c158c57cf55c2e (patch)
tree2c7c3f08ae779594026e67a7a36915c2f97d73b9 /arch/ia64/sn/kernel/irq.c
parentfd58e55fcf5568e51da2ed54d7acd049c3fdb184 (diff)
downloadop-kernel-dev-10083072bfabc40bc47306e512c158c57cf55c2e.zip
op-kernel-dev-10083072bfabc40bc47306e512c158c57cf55c2e.tar.gz
[PATCH] PCI: per-platform IA64_{FIRST,LAST}_DEVICE_VECTOR definitions
Abstract IA64_FIRST_DEVICE_VECTOR/IA64_LAST_DEVICE_VECTOR since SN platforms use a subset of the IA64 range. Implement this by making the above macros global variables which the platform can override in it setup code. Also add a reserve_irq_vector() routine used by SN to mark a vector's as in-use when that weren't allocated through assign_irq_vector(). Signed-off-by: Mark Maule <maule@sgi.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'arch/ia64/sn/kernel/irq.c')
-rw-r--r--arch/ia64/sn/kernel/irq.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/ia64/sn/kernel/irq.c b/arch/ia64/sn/kernel/irq.c
index c265e02..db187f5 100644
--- a/arch/ia64/sn/kernel/irq.c
+++ b/arch/ia64/sn/kernel/irq.c
@@ -202,6 +202,9 @@ void sn_irq_init(void)
int i;
irq_desc_t *base_desc = irq_desc;
+ ia64_first_device_vector = IA64_SN2_FIRST_DEVICE_VECTOR;
+ ia64_last_device_vector = IA64_SN2_LAST_DEVICE_VECTOR;
+
for (i = 0; i < NR_IRQS; i++) {
if (base_desc[i].handler == &no_irq_type) {
base_desc[i].handler = &irq_type_sn;
@@ -285,6 +288,7 @@ void sn_irq_fixup(struct pci_dev *pci_dev, struct sn_irq_info *sn_irq_info)
/* link it into the sn_irq[irq] list */
spin_lock(&sn_irq_info_lock);
list_add_rcu(&sn_irq_info->list, sn_irq_lh[sn_irq_info->irq_irq]);
+ reserve_irq_vector(sn_irq_info->irq_irq);
spin_unlock(&sn_irq_info_lock);
register_intr_pda(sn_irq_info);
@@ -310,8 +314,11 @@ void sn_irq_unfixup(struct pci_dev *pci_dev)
spin_lock(&sn_irq_info_lock);
list_del_rcu(&sn_irq_info->list);
spin_unlock(&sn_irq_info_lock);
+ if (list_empty(sn_irq_lh[sn_irq_info->irq_irq]))
+ free_irq_vector(sn_irq_info->irq_irq);
call_rcu(&sn_irq_info->rcu, sn_irq_info_free);
pci_dev_put(pci_dev);
+
}
static inline void
OpenPOWER on IntegriCloud