From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from web15104.mail.cnb.yahoo.com (web15104.mail.cnb.yahoo.com [202.165.103.73]) by ozlabs.org (Postfix) with SMTP id EB739DE058 for ; Tue, 11 Mar 2008 07:22:30 +1100 (EST) Date: Mon, 10 Mar 2008 13:15:49 -0700 (PDT) From: jie han Subject: issue about CONFIG_PPC_MMU and CONFIG_SMP define To: "linuxppc-embedded@ozlabs.org" MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-1711343891-1205180149=:57629" Message-ID: <604678.57629.qm@web15104.mail.cnb.yahoo.com> List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , --0-1711343891-1205180149=:57629 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Hi guys, I want to simulate compile mutli-core using sequoia(IBM/AMCC 44x processor) source code under kernel arch/powerpc directory.I want to define CONFIG_SMP, I sould define CONFIG_STD_MMU at first,but AMCC 44x don't need to config CONFIG_STD_MMU.Is CONFIG_STD_MMU just for freescale chip? How can I do next? Thanks ahead for your help, Best regards Jie Han --------------------------------- Never miss a thing. Make Yahoo your homepage. --0-1711343891-1205180149=:57629 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Hi guys,

I want to simulate compile mutli-core using sequoia(IBM/AMCC 44x processor) source code under kernel arch/powerpc directory.I want to define CONFIG_SMP, I sould define CONFIG_STD_MMU at first,but AMCC 44x don't need to config CONFIG_STD_MMU.Is CONFIG_STD_MMU just for freescale chip? How can I do next? Thanks ahead for your help,


Best regards

Jie Han

Never miss a thing. Make Yahoo your homepage. --0-1711343891-1205180149=:57629-- From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from az33egw01.freescale.net (az33egw01.freescale.net [192.88.158.102]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "az33egw01.freescale.net", Issuer "Thawte Premium Server CA" (verified OK)) by ozlabs.org (Postfix) with ESMTPS id 8F809DE197 for ; Wed, 12 Mar 2008 02:52:40 +1100 (EST) In-Reply-To: <604678.57629.qm@web15104.mail.cnb.yahoo.com> References: <604678.57629.qm@web15104.mail.cnb.yahoo.com> Mime-Version: 1.0 (Apple Message framework v752.2) Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Message-Id: From: Becky Bruce Subject: Re: issue about CONFIG_PPC_MMU and CONFIG_SMP define Date: Tue, 11 Mar 2008 10:53:15 -0500 To: jie han Cc: "linuxppc-embedded@ozlabs.org" List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Mar 10, 2008, at 3:15 PM, jie han wrote: > Hi guys, > > I want to simulate compile mutli-core using sequoia(IBM/AMCC 44x > processor) source code under kernel arch/powerpc directory.I want > to define CONFIG_SMP, I sould define CONFIG_STD_MMU at first,but > AMCC 44x don't need to config CONFIG_STD_MMU.Is CONFIG_STD_MMU just > for freescale chip? How can I do next? Thanks ahead for your help, STD_MMU is for all powerpc cpus with a non-BookE MMU. That includes all the 64-bit parts from IBM to date, pasemi's parts, and 32-bit parts from IBM & Freescale like the 6xx, 7xx, 7xxx, e600 e300, etc. You cannot set this for 44x, because it is a BookE part. BTW, there's no real relationship between STD_MMU and SMP. It was just a convenient way to restrict the SMP config option in the kernel, since all the Linux configs that currently support SMP are STD_MMU. We will have BookE configs in the future that do support SMP, at which point arch/powerpc/platforms/Kconfig.cputype will be changed to allow SMP to be set for those configs. You can't enable SMP on 44x right now. It's not supported. Cheers, B