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From: Nicolas DET <nd@bplan-gmbh•de>
To: Benjamin Herrenschmidt <benh@kernel•crashing.org>
Cc: linuxppc-dev@ozlabs•org, Sylvain Munaut <tnt@246tNt•com>,
	sl@bplan-gmbh•de, linuxppc-embedded@ozlabs•org
Subject: Re: [PATCH/RFC] powerpc: Add MPC5200 Interrupt Controller support.
Date: Thu, 2 Nov 2006 17:27:02 +0100 (MET)	[thread overview]
Message-ID: <454A1C37.5050208@bplan-gmbh.de> (raw)
In-Reply-To: <1162419138.25682.453.camel@localhost.localdomain>

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Benjamin Herrenschmidt wrote:

> Now, in addition to that, we have another issue I haven't spotted
> before, but it might be worth considering:
> 
> Do we actually want the sdma interrupts handled there ? Because if you
> look closely, the SDMA is basically a cascaded interrupt controller. It
> hangs of per interrupt 0 :)

I know. I already spot this point (IRQ as far as I remenber and in 
private mails) and I got no answer so I assumed it was ok like I did. 
It's also really simplier and easier to add SDMA has another irq_chip.
Keep is simple ;-)

> Thus we could simply remove the code for it from that driver and
> implement it as as separate controller with a separate interrupt domain.
> I know you won't like that idea because it means having a different
> interrupt tree but it's worth having the discussion.
> 

The device tree won't change anyway...

I'll submit a new buch of patches pretty soon. Maybe the final version.

"On y est presque !" ;-)

Regards


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  reply	other threads:[~2006-11-02 16:27 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-11-01 20:27 [PATCH/RFC] powerpc: Add MPC5200 Interrupt Controller support Nicolas DET
2006-11-01 22:05 ` Dale Farnsworth
2006-11-01 22:07   ` Sven Luther
2006-11-01 22:21     ` Dale Farnsworth
2006-11-01 22:12 ` Benjamin Herrenschmidt
2006-11-02 16:27   ` Nicolas DET [this message]
2006-11-02 20:47     ` Nicolas DET
2006-11-04 23:35       ` Benjamin Herrenschmidt
2006-11-05  0:27         ` Sylvain Munaut
2006-11-05  1:13           ` Benjamin Herrenschmidt
2006-11-06  6:28             ` Grant Likely
2006-11-06  8:39               ` Sylvain Munaut
2006-11-05 10:17         ` Nicolas DET
2006-11-05 10:37           ` Benjamin Herrenschmidt
2006-11-05 11:30             ` Nicolas DET
2006-11-05 13:02               ` Benjamin Herrenschmidt
2006-11-05 13:16                 ` Nicolas DET
2006-11-05 14:32                 ` Sylvain Munaut
2006-11-06  6:55       ` Grant Likely
  -- strict thread matches above, loose matches on Subject: below --
2006-11-06 10:26 Nicolas DET
2006-11-06 11:03 Nicolas DET
2006-11-06 23:35 ` Sylvain Munaut
2006-11-07  9:22   ` Nicolas DET
2006-11-07 10:40 Nicolas DET
2006-11-07 10:45 ` Sylvain Munaut
2006-11-07 16:30   ` Grant Likely
2006-11-07 20:52     ` Sylvain Munaut

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