From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e31.co.us.ibm.com (e31.co.us.ibm.com [32.97.110.149]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "e31.co.us.ibm.com", Issuer "Equifax" (verified OK)) by ozlabs.org (Postfix) with ESMTPS id 8F0CEB6F19 for ; Tue, 22 Dec 2009 05:15:43 +1100 (EST) Received: from d03relay02.boulder.ibm.com (d03relay02.boulder.ibm.com [9.17.195.227]) by e31.co.us.ibm.com (8.14.3/8.13.1) with ESMTP id nBLI7xrJ030985 for ; Mon, 21 Dec 2009 11:07:59 -0700 Received: from d03av04.boulder.ibm.com (d03av04.boulder.ibm.com [9.17.195.170]) by d03relay02.boulder.ibm.com (8.13.8/8.13.8/NCO v9.1) with ESMTP id nBLIFX4H100132 for ; Mon, 21 Dec 2009 11:15:35 -0700 Received: from d03av04.boulder.ibm.com (loopback [127.0.0.1]) by d03av04.boulder.ibm.com (8.14.3/8.13.1/NCO v10.0 AVout) with ESMTP id nBLIFWp1031453 for ; Mon, 21 Dec 2009 11:15:32 -0700 Message-ID: <4B2FBB3F.8030703@austin.ibm.com> Date: Mon, 21 Dec 2009 12:15:27 -0600 From: Joel Schopp MIME-Version: 1.0 To: Michael Neuling Subject: Re: [PATCH] powerpc: update ibm,client-architecture References: <1261170452.8134.13.camel@jschopp-laptop> <29526.1261353566@neuling.org> In-Reply-To: <29526.1261353566@neuling.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Cc: linuxppc-dev@ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , >> Subject: Re: [PATCH] powerpc: update ibm,client-architecture >> > > Please give this a more appropriate name. > Any suggestions? > >> In order to boot with more than 64 cores on machines that support the >> ibm,client-architecture RTAS call a new field has been added to the >> structure. This patch updates that field and adds a few others in the >> process. >> > > Please detail what these are here. > OK. >> + W(NR_CPUS/4), /* max cores supported */ >> > > 4? > > 4 is the new 2. Since you don't know the actual threads per core at this point in boot you have to be conservative and go with the maximum number of any processor. See page 4 of these charts: http://www.power.org/events/powercon09/taiwan09/IBM_Overview_POWER7.pdf > > > Can we do this now or remove the comment. Maybe UTS_RELEASE or > something like that. > I'll just remove the comment for now.