From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from az33egw01.freescale.net (az33egw01.freescale.net [192.88.158.102]) by ozlabs.org (Postfix) with ESMTP id BF8F267A6B for ; Fri, 1 Apr 2005 09:10:11 +1000 (EST) In-Reply-To: <20050331201548.GK25923@smtp.west.cox.net> References: <20050331201548.GK25923@smtp.west.cox.net> Mime-Version: 1.0 (Apple Message framework v619.2) Content-Type: text/plain; charset=ISO-8859-1; format=flowed Message-Id: <6bc789cab290e3a49523c59a4a5f73a4@freescale.com> From: Kumar Gala Date: Thu, 31 Mar 2005 17:10:01 -0600 To: "Tom Rini" Cc: linuxppc-embedded Linux list Subject: Re: 440EP FPU patch List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , I'll try to see if I can build a kernel to use on a pegasos box to test=20= out the avec side tomorrow. - kumar On Mar 31, 2005, at 2:15 PM, Tom Rini wrote: > On Thu, Mar 31, 2005 at 01:10:44PM -0700, Matt wrote: > > On Thu, Mar 31, 2005 at 09:34:21AM -0700, Tom Rini wrote: > > > On Thu, Mar 31, 2005 at 09:26:18AM -0700, Wade Farnsworth wrote: > > > > On Fri, 2005-03-18 at 12:30, Tom Rini wrote: > > > > > On Fri, Mar 18, 2005 at 01:43:11PM -0500, Jason McMullan=20 > wrote: > > > > > > On Fri, 2005-03-18 at 10:06 -0600, Kumar Gala wrote: > > > > > > > Can you build your patch for the lopec_defconfig and fix=20= > the errors > > > > > > > associated with enabling altivec. > > > > > > > > > > > > > > Looks like you need to include asm/offset.h & asm/page.h=20= > in vector.S, > > > > > > > however there is another build error after that. > > > > > > > > > > > > Thanks! That also found a linking bug, fixed in this patch..=20= > Please > > > > > > double check the call in 'AltiVecUnavalible' in head.S, and=20= > the re-load > > > > > > of 'ctr' at the end of load_up_altivec, as I do not have an=20= > AltiVec > > > > > > machine here. > > > > > > > > > > No dice: > > > > > VFS: Mounted root (nfs filesystem) readonly. > > > > > Freeing unused kernel memory: 100k init 4k prep > > > > > floating point used in kernel (task=3Dc03816b0, pc=3Dc000d664) > > > > > Doing some objdump'ing, that's the start of load_up_altivec. > > > > > > > > Hi Jason and Tom, > > > > > > > > Has there been any more progress on this patch? > > > > > > Sadly no.=A0 We got to the point where it was reliably crashing on = my > > > LoPEC (7400), but no time to try and fix it.=A0 The problem should=20= > show up > > > on any classic PPC box.. > > > > If nobody has time to work on this, then I intend=A0 to put Wade's=20= > 440EP > > support in as is (actually, he's planning on resubmitting with some > > additional changes).=A0 When somebody has time, they can redo the=20= > patch > > against that. > > That's a good point to bring up.=A0 Jason, do you want to post your > current version to the list and we can try and see if we can get it > workign right? > > --=20 > Tom Rini > http://gate.crashing.org/~trini/ > _______________________________________________ > Linuxppc-embedded mailing list > Linuxppc-embedded@ozlabs.org > https://ozlabs.org/mailman/listinfo/linuxppc-embedded