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Re: CVS linux

To: Dominic Sweetman <>
Subject: Re: CVS linux
From: Ralf Baechle <>
Date: Tue, 21 Nov 2000 04:39:03 +0100
Cc: Harald Koerfgen <>,,,
In-reply-to: <>; from on Sun, Nov 19, 2000 at 03:16:33PM +0000
References: <> <> <> <>
On Sun, Nov 19, 2000 at 03:16:33PM +0000, Dominic Sweetman wrote:

> ll/sc between CPUs certainly won't work for uncached accesses, since
> they rely on the cache coherency protocols.
> On a uniprocessor CPU the ll/sc link is typically broken on any
> exception.  You'd have to try very hard to design the CPU so that it
> would work any differently for cached and uncached accesses.

Ok, so now CONFIG_MIPS_UNCACHED is only selectable for UP kernels.


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