From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Milton Miller <miltonm@bga.com>
Cc: linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org,
Sebastien Dugue <sebastien.dugue@bull.net>,
Jan-Bernd Themann <ossthema@de.ibm.com>,
Paul Mackerras <paulus@samba.org>,
Christoph Raisch <RAISCH@de.ibm.com>
Subject: Re: [PATCH HACK] powerpc: quick hack to get a functional eHEA with hardirq preemption
Date: Thu, 25 Sep 2008 07:16:45 +1000 [thread overview]
Message-ID: <1222291005.8277.86.camel@pasglop> (raw)
In-Reply-To: <0fa2693104ff3250114d82837911b9e8@bga.com>
On Wed, 2008-09-24 at 11:42 -0500, Milton Miller wrote:
>
> I was trying to understand why the mask and early eoi, but I guess its
> to handle other more limited interrupt controllers where the interrupts
> stack in hardware instead of software.
No Milton, we must do it that way, because the EOI must be done on the
right CPU even on XICS, or we won't get the CPU priority back properly.
Ben.
next prev parent reply other threads:[~2008-09-24 21:23 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-15 8:04 [PATCH HACK] powerpc: quick hack to get a functional eHEA with hardirq preemption Sebastien Dugue
2008-09-15 12:17 ` Jan-Bernd Themann
2008-09-15 12:35 ` Thomas Klein
2008-09-15 13:13 ` Sebastien Dugue
2008-09-16 11:59 ` Anton Vorontsov
2008-09-16 12:22 ` Sebastien Dugue
2008-09-18 7:53 ` Christoph Raisch
2008-09-18 9:27 ` Sebastien Dugue
2008-09-18 10:42 ` [PATCH HACK] powerpc: quick hack to get a functional eHEA with hardirq preemption, eHCA is close Christoph Raisch
2008-09-18 12:31 ` Sebastien Dugue
2008-09-23 15:43 ` Jan-Bernd Themann
2008-09-24 9:58 ` [PATCH HACK] powerpc: quick hack to get a functional eHEA with hardirq preemption Milton Miller
2008-09-24 10:17 ` Benjamin Herrenschmidt
2008-09-24 11:02 ` Milton Miller
2008-09-24 21:14 ` Benjamin Herrenschmidt
2008-09-25 7:31 ` Sebastien Dugue
2008-09-24 12:35 ` Sebastien Dugue
2008-09-24 21:15 ` Benjamin Herrenschmidt
2008-09-25 7:18 ` Sebastien Dugue
2008-09-25 7:22 ` Benjamin Herrenschmidt
2008-09-25 7:42 ` Sebastien Dugue
2008-09-25 8:36 ` Benjamin Herrenschmidt
2008-09-25 8:39 ` Sebastien Dugue
2008-09-24 12:30 ` Sebastien Dugue
2008-09-24 16:42 ` Milton Miller
2008-09-24 21:16 ` Benjamin Herrenschmidt [this message]
2008-09-25 3:56 ` Milton Miller
2008-09-25 8:45 ` Sebastien Dugue
-- strict thread matches above, loose matches on Subject: below --
2008-09-25 23:40 Milton Miller
2008-09-26 9:16 ` Sebastien Dugue
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