Re: Subtle semantic issue with sleep callbacks in drivers

[Alan Cox]

On Iau, 2003-04-17 at 16:56, Jeff Garzik wrote:
> On Thu, Apr 17, 2003 at 04:47:45PM +0100, John Bradford wrote:
> > Hmm, well what about with a PCI hotswap capable board - presumably
> > then we could have the situation where a new VGA card appears that we
> > _have_ to POST?
> 
> Then XFree86 will POST it.
> 
> The kernel really only cares about POST'ing the primary display, too.
> Firmware typically completely disables, and does not POST, secondary
> displays.  XFree86 is charged with the responsibility of POST'ing
> secondary displays.

XFree86 currently has to do some pray and hope stuff here. We cannot have
X and the kernel both controlling PCI allocations and config space at once.
X needs kernel interfaces to do the job right some day.