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From: Arnd Bergmann <arnd@arndb.de>
To: linuxppc-dev@ozlabs.org
Cc: Milton Miller <miltonm@bga.com>
Subject: Re: [PATCH 1/1] Add support for MSI on Axon-based Cell systems
Date: Tue, 19 Jun 2007 00:26:28 +0200	[thread overview]
Message-ID: <200706190026.28608.arnd@arndb.de> (raw)
In-Reply-To: <c9982de4efc00ba092d6982a61f98ed2765130bf.1182156508.git.michael@ellerman.id.au>

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>

  reply	other threads:[~2007-06-18 22:26 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-06-18  8:49 [PATCH 1/1] Add support for MSI on Axon-based Cell systems Michael Ellerman
2007-06-18 22:26 ` Arnd Bergmann [this message]
  -- strict thread matches above, loose matches on Subject: below --
2007-06-12  9:33 Michael Ellerman

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