[LinuxBIOS] [patch 0/4] AMD Geode LX support for LinuxBIOS
Carl-Daniel Hailfinger
c-d.hailfinger.devel.2006 at gmx.net
Thu May 3 19:21:11 CEST 2007
On 03.05.2007 19:10, Stefan Reinauer wrote:
> * Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006 at gmx.net> [070503 19:03]:
>> According to Mitch Bradley, switching away from VSA saved ~10 seconds
>> during early bootup.
>
> This makes me think there was something pretty much broken.
> The GX1 I have here does not even need 10s before it starts loading the
> OS, and it has VSA in place (not LinuxBIOS though)
I may have misunderstood his mail back then.
However, switching from LinuxBIOS(+)VSA to OFW(-)VSA reduced time from
poweron to active display by ~13 seconds.
>> I'd like to split the VSA into "useful" chunks and "unneeded" chunks.
>> VGA/sound emulation is now unnecessary since Linux has drivers for
>> the native hardware. Bootloaders might want VGA, though.
>> However, PCI emulation makes some things much easier IMO.
>
> So do distributions. Loading a geodefb in a non-embedded platform is
> most likely not going to happen, unless someone tunes the system.
Can we detect that something uses VGA and enable the VGA VSA on demand?
Regards,
Carl-Daniel
--
http://www.hailfinger.org/
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