From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <3981BB7A.23043170@lightning.ch> Date: Fri, 28 Jul 2000 18:57:30 +0200 From: Daniel Marmier Reply-To: daniel.marmier@lightning.ch MIME-Version: 1.0 To: Dan Malek CC: linuxppc-dev Subject: Re: Altivec on 2.4.xx? References: <3980DEAF.ACFB0C43@embeddededge.com> <39813520.673CF3E0@lightning.ch> <39819D52.DAC049B4@embeddededge.com> Content-Type: text/plain; charset=us-ascii Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: Dan Malek wrote: > This is a PowerPC architecture definition. It isn't unique to the MPC8xx, > as I am obviously using a 7400 with Altivec here. The exception I was talking about is _implementation specific_, which makes it MPC8xx unique. I do not use Altivec, but I am afraid there could be problems even without it. I could not find out whether the Data TLB Miss exception sets the DSISR, but DataStoreTLBMiss can branch to DataAccess, wich passes the DSISR to do_page_fault. Phew, hope I was clearer :-) Anyway, I will look at this exception with care before telling more. > Having the common page fault handler is a good thing, we just have > to make sure we extract the information properly from the appropriate > register. Of course it is a good thing. I was just suggesting a way of retrieving this information properly from do_page_fault. > I thought there was more (than none :-) development happening with > Altivec on PowerPC Linux. Maybe tiny test applications will work, > but my MPEG-2 decoder won't. Sorry, only 8xx here :-( Daniel Marmier ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/