From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <3A7D8C19.B829A8D0@mvista.com> Date: Sun, 04 Feb 2001 12:06:33 -0500 From: Dan Malek MIME-Version: 1.0 To: Troy Benjegerdes CC: linuxppc-dev@lists.linuxppc.org Subject: Re: Fast Altivec References: <3A7AE117.628B22A6@mvista.com> <20010202125143.D31120@altus.drgw.net> Content-Type: text/plain; charset=us-ascii Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: Troy Benjegerdes wrote: > Heheheh, I have to ask.. is it really running that fast, and do you have all > the neat features turned on? It's really running that fast, in fact I may try to push it up to 800 MHz just to see. There are switches on the board to select up to 16 different speeds in 50 MHz increments. I have version 2.02 of the silicon now, and you certainly don't want to use anything older than that (and in fact you probably won't ever see any). I have L1/L2 caches working. I started on the L3 stuff but ran out of time for the demo. I discovered someone "fixed" my original Media-Q graphics driver by removing all of the PowerPC big endian fixes (and did other things like ioremap and then in/out). I spent too long sorting this out instead of working on processor specific things. There are a few little details that have to be fixed up on the code, lots of PVR things and a few new bits in some registers. I also think the POWER3/POWER4 changes are not being done correctly. There is too much overlap between the processor and the platform. The POWERx ifdefs should only be related to the processor, not how the platform maps stuff to PCI or other things. Since the 7450 has a 36-bit addressing capability, I wanted to use some of the changes along the POWERx path to help out. More on that later.......... -- Dan ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/