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From: Kumar Gala <galak@kernel.crashing.org>
To: Segher Boessenkool <segher@kernel.crashing.org>
Cc: linuxppc-dev@ozlabs.org
Subject: Re: [PATCH] [POWERPC] 85xx: Add basic Uniprocessor MPC8572 DS port
Date: Thu, 13 Sep 2007 16:23:50 -0500	[thread overview]
Message-ID: <C5470240-1B7C-4AE2-912B-62B280C0904E@kernel.crashing.org> (raw)
In-Reply-To: <5bba19e33a518178eb46f2a1758cff40@kernel.crashing.org>


On Sep 13, 2007, at 11:53 AM, Segher Boessenkool wrote:

>>> What is a "front side cache"?  What exactly does it cache?  If it's
>>> a cache for one CPU only, that fact should be shown in the device
>>> tree somehow.
>>
>> Its in front of the memory controllers.  Its not specific to a  
>> given CPU.
>
> Ah, I see.  That relationship is implicit in the device tree already,
> both this cache controller and that memory controller are child nodes
> of the same soc node, so your device tree is fine.
>
> Just for my own understanding, is this a coherent cache?  (I'm too
> lazy to read the manual ;-) )

yes its coherent.  Our caches tend to be coherent.

- k

  reply	other threads:[~2007-09-13 21:21 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-09-11  6:29 [PATCH] [POWERPC] 85xx: Add basic Uniprocessor MPC8572 DS port Kumar Gala
2007-09-11 14:17 ` Scott Wood
2007-09-11 15:58   ` Kumar Gala
2007-09-12 13:20     ` Segher Boessenkool
2007-09-13  3:27       ` Kumar Gala
2007-09-13 16:53         ` Segher Boessenkool
2007-09-13 21:23           ` Kumar Gala [this message]
2007-09-11 14:18 ` Olof Johansson
2007-09-11 15:50   ` Kumar Gala
2007-09-11 15:55     ` Olof Johansson
2007-09-11 16:00       ` Kumar Gala
2007-09-11 17:15         ` Olof Johansson
2007-09-11 17:21           ` Scott Wood
2007-09-11 17:33             ` Olof Johansson
2007-09-11 17:48               ` Scott Wood
2007-09-11 17:59                 ` Kumar Gala
2007-09-12  3:00                   ` David Gibson
2007-09-12  3:35                     ` Kumar Gala
2007-09-12  3:37                       ` David Gibson
2007-09-12  3:37                       ` Olof Johansson
2007-09-12 13:20             ` Segher Boessenkool

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