Re: [PATCH] x86_64: Make NR_IRQS configurable in Kconfig

From: Martin Schwidefsky
Date: Thu Aug 10 2006 - 10:51:30 EST

On Thu, 2006-08-10 at 15:40 +0100, Andy Whitcroft wrote:
> Well you could do something more fun with the top of the address. You
> don't need to keep the bytes in the same order for instance. If this
> is really a fair size chunk at the bottom and one at the top then
> taking the address and swapping the bytes like:
> Would be a pretty trivial bit of register wibbling (ie very quick),
> but would probabally mean a single flat, smaller sparsemem table would
> cover all likely areas.

Not if you don't know where the objects will be mapped..

blue skies,

Martin Schwidefsky
Linux for zSeries Development & Services
IBM Deutschland Entwicklung GmbH

"Reality continues to ruin my life." - Calvin.

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at