From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from moutng.kundenserver.de (moutng.kundenserver.de [212.227.126.171]) by ozlabs.org (Postfix) with ESMTP id 68FE8DDEDB for ; Sat, 21 Jul 2007 10:35:58 +1000 (EST) From: Arnd Bergmann To: linuxppc-dev@ozlabs.org Subject: Re: [PATCH] powerpc: mpic protected sources Date: Sat, 21 Jul 2007 02:00:55 +0200 References: <1184975721.5439.33.camel@localhost.localdomain> In-Reply-To: <1184975721.5439.33.camel@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Message-Id: <200707210200.56466.arnd@arndb.de> Cc: Paul Mackerras List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Saturday 21 July 2007, Benjamin Herrenschmidt wrote: > 0% probability of being spam. >=20 > Full report: > No, score=3D-2.5 required=3D5.0 tests=3DAWL,BAYES_00 autolearn=3Dham ver= sion=3D3.1.7-deb =A0 > Some HW platforms, such as the new cell blades, requires some MPIC sources > to be left alone by the operating system. This patch implements support f= or > a "protected-sources" property in the mpic controller node containing a l= ist > of source numbers to be protected against operating system interference. >=20 > For those interested in the gory details, the MPIC on the southbridge of > those blades has some of the processor outputs routed to the cell, and > at least one routed as a GPIO to the service processor. It will be used > in the GA product for routing some of the southbridge error interrupts > to the service processor which implements some of the RAS stuff, such > as checkstopping when fatal errors occurs before they can propagate. >=20 > Signed-off-by: Benjamin Herrenschmidt Acked-by: Arnd Bergmann