Re: Initial IXP_NPE kernel committed

On Tue, September 12, 2006 15:02, Michael-Luke Jones wrote:
>> Why remove RS5C372? AFAIK, it's used by DS101 and N2100, possibly more
>> devices too. Dunno about the M48T86.
>
> Because the kernel as patched does not support the DS101 or N2100?
> Can always be added later.

Hopefully, most of the N2100 support will be in in a couple of days when I
get around to testing stuff. Might also get around to adding the FSG-3
support as well.

>> evdev can't be loaded as a module if we want the buzzer to work on
>> various devices at boot time.
>
> Didn't realise this - there should be a dependency in the kernel set
> surely? I'll compile it in.

Misphrased myself a bit there. It's probably possible to load it in the
initscripts. The initscripts need a fair bit of reworking because of the
modularization (eg. usb/scsi/ide needs to be loaded manually). Could you
file a bug in the slugos firmware section on this? (I'm away from my
devbox, so I'll probably forget)

>>> Netwinder FPE emulation replaced with FastFPE
>>>
>> Are you sure that's a good enough replacement? Remember that the slugs
>> are all-round devices, which unfortunately costs a bit of performance.
>
> Kernel config quote:
> Say Y here to include the FAST floating point emulator in the kernel.
> This is an experimental much faster emulator which now also has full
> precision for the mantissa.  It does not support any exceptions. It is very
> simple, and approximately 3-6 times faster than NWFPE. It should be
> sufficient for most programs.  It may be not suitable for scientific
> calculations, but you have to check this for yourself.
>
> I think it's worth testing as a speed up and as it reduces kernel
> size. I doubt there are many people doing calculations requiring high
> floating point accuracy on a device without a floating point unit.

Ok, we can try it during the alpha testing and see if it works out.

>> Modularize SCSI/IDE/USB. All devices boot from flash and load the
>> necessary drivers to support their hardware before booting from an
>> internal/external disk.
>
> Sorting this now.
>

I *had* the kernel modularized before, so I can look it over when you're
done.

Regards,
Øyvind Repvik




 
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