[Xorg] The big multiconsole nasty
eich at pdx.freedesktop.org
Sun Jul 4 04:52:54 PDT 2004
Alan Cox writes:
> On Gwe, 2004-07-02 at 18:04, Egbert Eich wrote:
> > Do you refer to config port access directly thru the 'well known' 'config
> > mechanism 1' (ie PIO 0xcf8 0xcfc registers), or do you mean access to
> > PCI config space from user space altogether - even when using the kernel
> > functions?
> Using conf1. Accessing via the kernel provided functions is fine
OK, sounds good.
We can change the default by changing one or two lines in the code.
The reason that we is conf1 instead of the kernel interface is that
I thought the latencies may be somewhat lower when using it for RAC.
On some platforms (like AXP) we always had to go thru the kernel.
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