From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Mark Nelson To: linuxppc-dev@ozlabs.org Subject: Re: [RFC 0/3] powerpc: memory copy routines tweaked for Cell Date: Fri, 20 Jun 2008 10:04:02 +1000 References: <200806191753.51495.markn@au1.ibm.com> <200806191559.04852.arnd@arndb.de> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Message-Id: <200806201004.02749.markn@au1.ibm.com> Cc: Gunnar von Boehn , Arnd Bergmann , Paul Mackerras , Olof Johansson , Michael Ellerman , cbe-oss-dev@ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Fri, 20 Jun 2008 12:53:49 am Olof Johansson wrote: > > On Jun 19, 2008, at 8:59 AM, Arnd Bergmann wrote: > > > I assume it has suffered from bitrot and nobody tried to do better > > since the Power3 days. AFAICT, it hasn't seen any update since your > > original Power4 version from 2002. > > I've got an out-of-tree optimized version for pa6t as well that I > haven't bothered posting yet. > > The real pain with the usercopy code is all the exception cases. If > anyone has made a test harness to make sure they're all right, please > do post it for others to use as well... I second that request - I verified (to the best that I could) with pen and paper that the exception handling on this new version is correct but it would be great to have a better way to test it. Mark