Re: [patch 00/47] Sparse irq rework

[Benjamin Herrenschmidt]

On Sun, 2010-10-03 at 21:16 +0200, Thomas Gleixner wrote:
> 
> And I really do not see a point to have a truly random 64bit number
> space for interrupts. Especially the dynamically allocated interrupts
> (MSI & co) do not care about the number space at all. They care about
> getting a unique number, nothing else.

Actually, some implementations care about the actual number... but then,
at least on powerpc, those are hidden behind the virq translation so we
really don't care :-)

(IE. Some PCI host bridges give meaning to the bits of the number, while
x86 tends to use the address for that).

Cheers,
Ben.


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