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| author |   Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> | 2007-07-17 21:22:23 +0900 |
|---|---|---|
| committer |   Tony Luck <tony.luck@intel.com> | 2007-07-17 09:51:49 -0700 |
| commit | e1b30a392835e92581db09a4e8b4b2ad53a0c370 (patch) | |
| tree | 1a0dacd37e682dc4c2222f415f8035057d6bbc30 /arch/ia64/kernel/irq.c | |
| parent | [IA64] Check if irq is sharable (diff) | |
| download | linux-dev-e1b30a392835e92581db09a4e8b4b2ad53a0c370.tar.xz linux-dev-e1b30a392835e92581db09a4e8b4b2ad53a0c370.zip | |
[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.c | 2 |
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) #ifdef CONFIG_IA64_GENERIC unsigned int __ia64_local_vector_to_irq (ia64_vector vec) { - return (unsigned int) vec; + return __get_cpu_var(vector_irq)[vec]; } #endif |