diff options
| 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/smpboot.c | |
| parent | f8c087f31e1d3fbf1f7d0b3ea5e643f535e7de04 (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/smpboot.c')
| -rw-r--r-- | arch/ia64/kernel/smpboot.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c index 3c9d8e6089cf..9f5c90b594b9 100644 --- a/arch/ia64/kernel/smpboot.c +++ b/arch/ia64/kernel/smpboot.c @@ -395,9 +395,13 @@ smp_callin (void) fix_b0_for_bsp(); lock_ipi_calllock(); + spin_lock(&vector_lock); + /* Setup the per cpu irq handling data structures */ + __setup_vector_irq(cpuid); cpu_set(cpuid, cpu_online_map); unlock_ipi_calllock(); per_cpu(cpu_state, cpuid) = CPU_ONLINE; + spin_unlock(&vector_lock); smp_setup_percpu_timer(); |