From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp2.song.fi (smtp2.song.fi [194.100.2.122]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTP id A59B168397 for ; Thu, 29 Sep 2005 22:24:15 +1000 (EST) Received: from [194.100.64.94] (host94.eke.fi [194.100.64.94]) by smtp2.song.fi (Postfix) with ESMTP id 6B9D04DE7C for ; Thu, 29 Sep 2005 15:24:08 +0300 (EEST) Message-ID: <433BDCE7.2060206@iki.fi> Date: Thu, 29 Sep 2005 14:24:07 +0200 From: Kalle Pokki MIME-Version: 1.0 Cc: linuxppc-embedded@ozlabs.org References: <4333DF04.3000908@iki.fi> <43395322.1080407@iki.fi> <384d09b865d454875c447cc02c89d001@embeddedalley.com> <4339AD01.30708@iki.fi> <714c16295fbfa97caafd1d0aa3a5932e@embeddedalley.com> <433A6E6D.4070403@iki.fi> In-Reply-To: <433A6E6D.4070403@iki.fi> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Subject: Re: CPM2 early console List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Kalle Pokki wrote: > I guess Linux remaps the RAM as copy-back. But snooping should work > with copy-back caches, shouldn't it? Oh, well. The kernel boots just fine if I add flags |= _PAGE_WRITETHRU | _PAGE_COHERENT; in setbat() in arch/ppc/mm/ppc_mmu.c. But this should not depend on this kind of a hack, should it?