Messages in this thread | | | Date | Tue, 12 Aug 2003 20:48:59 -0400 (EDT) | From | Zwane Mwaikambo <> | Subject | RE: Updated MSI Patches |
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On Tue, 12 Aug 2003, Nakajima, Jun wrote:
> static unsigned int startup_edge_ioapic_vector(unsigned int vector) > { > int was_pending = 0; > unsigned long flags; > int irq = vector_to_irq (vector); > > spin_lock_irqsave(&ioapic_lock, flags); > if (irq < 16) { > disable_8259A_irq(irq); > if (i8259A_irq_pending(irq)) > was_pending = 1; > } > __unmask_IO_APIC_irq(irq); > spin_unlock_irqrestore(&ioapic_lock, flags); > > return was_pending; > }
Hmm that doesn't look too bad, i like, ok another question, do you think this could be made to scale on systems with lots of devices requiring vectors?
Thanks, Zwane
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