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Re: [PATCH 3/5] Deforest the function pointer jungle in the time code.

To: "Maciej W. Rozycki" <macro@linux-mips.org>
Subject: Re: [PATCH 3/5] Deforest the function pointer jungle in the time code.
From: "Franck Bui-Huu" <vagabon.xyz@gmail.com>
Date: Thu, 14 Jun 2007 17:52:04 +0200
Cc: "Thomas Bogendoerfer" <tsbogend@alpha.franken.de>, linux-mips@linux-mips.org, "Ralf Baechle" <ralf@linux-mips.org>
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Maciej W. Rozycki wrote:
 I'll have a look at your patches, but I hope you have got about the most
interesting configuration right, which is the DEC platform

hmm, I looked at arch/mips/dec/time.c, and I'm not sure to understand it.
Could you give me more info ?

To be sure we're taking about the same thing, I'm calling "hpt" the timer
in CP0 _only_. If you have others timers let's call them "timer".

where you can have one of these:

1. No HPT at all.


What's generating the tick interrupt in this case ?

2. HPT in the chipset.


What do you mean by chipset ? the DS1287 ?

3. HPT in CP0.


Reading the dec code, it seems that whatever the case, you don't use
the hpt cp0 as tick interrupt source. It's only use as a clock source.
If so, why ?

--
              Franck

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