From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by bilbo.ozlabs.org (Postfix) with ESMTPS id 0739AB70AD for ; Fri, 11 Sep 2009 15:18:08 +1000 (EST) Subject: Re: AW: PowerPC PCI DMA issues (prefetch/coherency?) From: Benjamin Herrenschmidt To: Stefan Roese In-Reply-To: <200909110712.11858.sr@denx.de> References: <1251926572.10090.17.camel@Adam> <9D1E2BDCB5C57B46B56E6D80843439EB090397EC@SDCEXCHANGE01.ad.amcc.com> <1252637074.8566.56.camel@pasglop> <200909110712.11858.sr@denx.de> Content-Type: text/plain Date: Fri, 11 Sep 2009 15:17:50 +1000 Message-Id: <1252646270.8566.64.camel@pasglop> Mime-Version: 1.0 Cc: Andrea Zypchen , Pravin Bathija , lebon@lebon.org.ua, Prodyut Hazarika , tburns@datacast.com, linuxppc-dev@lists.ozlabs.org, azilkie@datacast.com List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Fri, 2009-09-11 at 07:12 +0200, Stefan Roese wrote: > > It's already there. See commit: > > 5ce4b59653b2c2053cd9a011918ac1e4747f24cc > > powerpc/4xx: Workaround for PPC440EPx/GRx PCI_28 Errata > Ok, that's another way to do it. Will catch nasty drivers who try to write directly rather than clear pci_cache_line_size I suppose... Cheers, Ben.