From: Kumar Gala <galak@kernel.crashing.org>
To: "<dayu@datangmobile.cn>" <dayu@datangmobile.cn>
Cc: olof@lixom.net, linuxppc-dev@ozlabs.org, leoli@freescale.com,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] fix the interrupt loss problem on powerpc IPIC(2.6.25-2.6.28)
Date: Thu, 19 Feb 2009 10:41:40 -0600 [thread overview]
Message-ID: <D3F7F9FD-94AD-4FA0-9FDF-DFF92487E5DE@kernel.crashing.org> (raw)
In-Reply-To: <D728AD1FA2543948B89DE29C5BF4CD0716AF9623@bjmail1.bj.datangmobile.com>
On Feb 17, 2009, at 11:47 PM, <dayu@datangmobile.cn> <dayu@datangmobile.cn
> wrote:
>
> From: Da Yu <dayu@datangmobile.cn>
> Date: Wed, 18 Feb 2009 19:58:20 +0800
> Subject: [PATCH] fix the interrupt loss problem on powerpc IPIC
> (2.6.25-2.6.28)
>
> Description: The interrupt pending register is write 1 clear. If
> there are more than one external interrupts pending at the same
> time, acking the first interrupt by reading pending register then OR
> the corresponding bit and write back to pending register will also
> clear other interrupt pending bits. That will cause loss of
> interrupt.
>
> Signed-off-by: Da Yu <dayu@datangmobile.cn>
> ---
applied to next
- k
next prev parent reply other threads:[~2009-02-19 16:41 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-18 5:47 [PATCH] fix the interrupt loss problem on powerpc IPIC(2.6.25-2.6.28) dayu
2009-02-19 16:41 ` Kumar Gala [this message]
-- strict thread matches above, loose matches on Subject: below --
2009-02-18 2:16 [PATCH] fix the interrupt loss problem on powerpc IPIC (2.6.25-2.6.28) dayu
2009-02-18 2:43 ` Olof Johansson
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