Messages in this thread | | | Date | Mon, 24 Nov 2008 23:26:26 +0100 (CET) | From | Thomas Gleixner <> | Subject | Re: [PATCH 1/2] irq: sparseirq enabling |
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On Mon, 24 Nov 2008, Yinghai Lu wrote: > Ingo Molnar wrote: > > This should simplify quite a few things in the sparseirq code. > > ok, will change to that. > > 1. nr_irqs will be legacy number or GSI numbers. MSI will start to use irq nr from nr_irqs > 2. or MSI still to use irq from NR_IRQS - 1, and ... go smaller?
We should go up from legacy/GSI. We can decode the max. number of possible "wired" irqs from the number of IO_APICs. Everything above that is "virtual MSI" space.
Going down just makes it harder to read (numbers have more digits for no value).
Thanks,
tglx
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