Re: [iiwusynth-devel] SSE again

[Josh Green]

On Mon, 2002-10-28 at 07:51, M. Nentwig wrote:
> Hello,
> 
> the kernel -has- to support the SSE extensions. And my kernel doesn't.
> You can find out with cat /proc/cpuinfo: The flags 'fxsr' and 'xmm' (not
> mmx) have to be set.
> If anybody finds out something (is this included in newer kernels by
> default? I have 2.4.10), please let me know.
> 
> -Markus
> 

I did see posts on the internet about the flags "fxsr" and "xmm" but
that was for 2.2.x kernals. I have "fxsr" and "sse". I looked through
the kernel source for 2.4.19-16mdk and found some SSE related stuff in:

linux/include/asm-i386/sigcontext.h:

* Pentium III FXSR, SSE support
*      Gareth Hughes <address@hidden>, May 2000

It also contains the 8 xmm 128 bit registers in the _fpstate structure.
Also in other places..

Unless Mandrake patched the kernel with SSE support (which is possible)
I think 2.4.x kernels come with this support already. I'm assuming this
because I can find no mention of adding SSE support to 2.4.x kernels. Of
course it may depend on what CPU you choose when building the kernel.
What CPU do you have? Cheers.
        Josh