Re: how is processor cache coherency maintained for device drivers

From: Mike Fedyk (mfedyk@matchmail.com)
Date: Mon Nov 12 2001 - 16:59:12 EST


On Sun, Nov 11, 2001 at 08:55:52AM -0800, James Bottomley wrote:
> I believe (although you should take better advice from the PPC people) that
> the powerpc is completely cache coherent, so any coherency problems you may be
> having would be due to the hardware, not the kernel.
>

IIRC (probably wrong though) the PPC is not coherent for one of its caches,
but is for another. PPC people would definately know the details, I'm just
thinking of a thread I read on this a few weeks ago...

Mike
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This archive was generated by hypermail 2b29 : Thu Nov 15 2001 - 21:00:30 EST