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authorYasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>2007-07-17 08:22:23 -0400
committerTony Luck <tony.luck@intel.com>2007-07-17 12:51:49 -0400
commite1b30a392835e92581db09a4e8b4b2ad53a0c370 (patch)
tree1a0dacd37e682dc4c2222f415f8035057d6bbc30 /arch/ia64/kernel/irq.c
parentf8c087f31e1d3fbf1f7d0b3ea5e643f535e7de04 (diff)
[IA64] Add mapping table between irq and vector
Add mapping tables between irqs and vectors, and its management code. This is necessary for supporting multiple vector domain because 1:1 mapping between irq and vector will be changed to n:1. The irq == vector relationship between irqs and vectors is explicitly remained for percpu interrupts, platform interrupts, isa IRQs and vectors assigned using assign_irq_vector() because some programs might depend on it. And I should consider the following problem. When pci drivers enabled/disabled devices dynamically, its irq number is changed to the different one. Therefore, suspend/resume code may happen problem. To fix this problem, I bound gsi to irq. Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/kernel/irq.c')
-rw-r--r--arch/ia64/kernel/irq.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/ia64/kernel/irq.c b/arch/ia64/kernel/irq.c
index 407b45870489..cc3ee4ef37af 100644
--- a/arch/ia64/kernel/irq.c
+++ b/arch/ia64/kernel/irq.c
@@ -35,7 +35,7 @@ void ack_bad_irq(unsigned int irq)
35#ifdef CONFIG_IA64_GENERIC 35#ifdef CONFIG_IA64_GENERIC
36unsigned int __ia64_local_vector_to_irq (ia64_vector vec) 36unsigned int __ia64_local_vector_to_irq (ia64_vector vec)
37{ 37{
38 return (unsigned int) vec; 38 return __get_cpu_var(vector_irq)[vec];
39} 39}
40#endif 40#endif
41 41