RFC: What about geting the same FPU emulation into SGI's tree?
----- Original Message -----
From: "Kevin D. Kissell" <email@example.com>
To: <firstname.lastname@example.org>; <email@example.com>
Sent: Wednesday, February 09, 2000 5:27 PM
Subject: Enhanced 2.2.12 MIPS Kernel Sources Available
> As many of you will have inferred, MIPS Technologies Inc
> has been working on the MIPS/Linux kernel for the past
> six months or so, driven by the need for a flexible software
> platform for valdiation and characterisation of new MIPS
> processor designs. Relatively early on, we made the difficult
> decision not to try to track the SGI Linux repository: It was
> too unstable, and the SGI activity is driven by a very
> different set of goals. We therefore took the 2.2.12
> kernel sources from kernel.org, and worked from there.
> I've shared some of our bug findings and fixes with
> the SGI mailing list, and still more of them with Ralf
> directly, but a lot of other changes and improvements
> have been made that will certainly be of interest to readers
> of this list, particularly those targeting non-SGI platforms.
> This kernel supports the new generation of 32-bit MIPS
> CPUs with R4K exception models. This involved fairly
> extensive changes to semaphore support and to TLB
> and cache management routines. We know it works on
> the MIPS 4Kc, and with appropriate additions to the
> table of recognized CPUs in the (revised) CPU probe
> code, it should run on the IDT 323xx, and Toshiba TX49
> processor families as well.
> It includes an integrated FPU emulator that handles
> the full MIPS FP instruction set, and allows FPU-less
> CPUs to run standard MIPS/Linux binaries.
> It contains a number of endianness fixes in the kernel
> and driver code, and is very stable in both configurations.
> It contains platform support for the Algorithmics P-5064
> and MIPS "Atlas" development boards, as well as the
> SGI Indy.
> This code is NOT a supported product of MIPS
> Technologies Inc. It is being made available on an
> "as is" basis subject to the ususal GPL. It should be
> accessible via anonymous (and blind) FTP for a while at
> and is archived on the Paralogos MIPS/Linux web site at
> http://www.paralogos.com/mipslinux/. We'd be very interested
> in any feedback, experimental results, and enhancements
> that any of you may wish to provide, and I will answer
> email questions to the extent that my time allows.
> Kevin K.
> Kevin D. Kissell
> MIPS Technologies European Architecture Lab
> Tel. +184.108.40.206.70.67
> FAX. +220.127.116.11.70.68