On Wed, Oct 18, 2000 at 02:25:41PM -0400, Rik Faith wrote:
> Just to clarify -- my use of get_module_symbol has nothing to do with
> load order. It has to do with allowing a drm module to work with or
> without the agpgart module loaded.
> If there's some other way to do this, I'll be happy to move to that.
> I'd like to preserve the ability to have one driver which works with
> each chipset family and not have to have separate drivers for PCI and
> AGP cards (or, rather, to have fewer instances of the drivers -- they
> already depend on SMP and MODVERSIONS, and that's a lot of overhead
> already if you just want to play Q3A :). I'd also like a dual-head
> system to be able to load the same drm module and just have it work
> for both the agp and the pci cards (this isn't supported yet, in case
> anyone is wondering).
Just do it the way most other subsystems do it - have a
drm_[un]register_driver() functions, which are exported by the DRM
generic module and have the card-specific modules call that. This way
the DRM generic module will know what drivers are loaded.
For an example see the PCI subsystem, USB, Input, chardevices, TTY
layer, whatever ...
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