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From: Arnd Bergmann <arnd@arndb.de>
To: linuxppc-dev@ozlabs.org
Subject: Re: [PATCH 1/1] Add support for MSI on Axon-based Cell systems
Date: Tue, 19 Jun 2007 00:26:28 +0200
References: <c9982de4efc00ba092d6982a61f98ed2765130bf.1182156508.git.michael@ellerman.id.au>
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Cc: Milton Miller <miltonm@bga.com>
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On Monday 18 June 2007, Michael Ellerman wrote:
> This patch adds support for the setup and decoding of MSIs
> on Axon-based Cell systems, using the MSIC mechanism.
> 
> This involves setting up an area of BE memory which the Axon
> then uses as a FIFO for MSI messages. When one or more MSIs
> are decoded by the MSIC we receive an interrupt on the MPIC,
> and the MSI messages are written into the FIFO. At the moment
> we use a 64KB FIFO, one per MSIC/BE.
> 
> Signed-off-by: Michael Ellerman <michael@ellerman.id.au>

Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>