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| author | Yinghai Lu <yhlu.kernel@gmail.com> | 2008-08-19 20:50:27 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-16 16:52:53 +0200 |
| commit | 199751d715bba5b469ea22adadc68a4166bfa4f5 (patch) | |
| tree | bc7edd6d16d75637fbe00d906636c1c879acedc8 /arch/x86/kernel/irqinit_32.c | |
| parent | 0f978f4505e96227a89b3c9447552aca983c6b57 (diff) | |
| download | linux-199751d715bba5b469ea22adadc68a4166bfa4f5.tar.gz linux-199751d715bba5b469ea22adadc68a4166bfa4f5.tar.bz2 linux-199751d715bba5b469ea22adadc68a4166bfa4f5.zip | |
x86: make 32 bit to use sparse_irq
but actually irq still needs to be less than NR_IRQS, because
interrupt[NR_IRQS] in entry.S.
need to enable per_cpu vector...
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/irqinit_32.c')
| -rw-r--r-- | arch/x86/kernel/irqinit_32.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/x86/kernel/irqinit_32.c b/arch/x86/kernel/irqinit_32.c index 65c1c9507707..ded09ac2642e 100644 --- a/arch/x86/kernel/irqinit_32.c +++ b/arch/x86/kernel/irqinit_32.c @@ -69,6 +69,13 @@ void __init init_ISA_irqs (void) * 16 old-style INTA-cycle interrupts: */ for (i = 0; i < 16; i++) { + /* first time call this irq_desc */ + struct irq_desc *desc = irq_to_desc_alloc(i); + + desc->status = IRQ_DISABLED; + desc->action = NULL; + desc->depth = 1; + set_irq_chip_and_handler_name(i, &i8259A_chip, handle_level_irq, "XT"); } |