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| author | Mark Maule <maule@sgi.com> | 2006-04-14 16:03:49 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-06-21 11:59:59 -0700 |
| commit | 10083072bfabc40bc47306e512c158c57cf55c2e (patch) | |
| tree | 2c7c3f08ae779594026e67a7a36915c2f97d73b9 /arch/ia64/sn/kernel/irq.c | |
| parent | fd58e55fcf5568e51da2ed54d7acd049c3fdb184 (diff) | |
| download | op-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.c | 7 |
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 |
