[Nouveau] [PATCH] nv: improve KMS detection

[Aaron Plattner]

On Wed, Jun 02, 2010 at 09:20:47AM -0700, Marcin Slusarz wrote:
> On Fri, May 28, 2010 at 11:45:17AM -0700, Aaron Plattner wrote:
> > On Sun, May 23, 2010 at 03:37:03PM -0700, Ben Skeggs wrote:
> > > On Sun, 2010-05-23 at 21:46 +0200, Marcin Slusarz wrote:
> > > > 1) DRICreatePCIBusID belongs to xserver dri module, so when it's
> > > >    unavailable we can't format string for drmCheckModesettingSupported.
> > > >    (This situation happened to me with KMS enabled and dri module moved
> > > >    somewhere else by Gentoo's "eselect opengl set nvidia" switcher)
> > > >    Open code DRICreatePCIBusID to drop dri dependency.
> > > > 2) Once we dropped dependency on dri module (which linked to libdrm),
> > > >    we have to link directly to libdrm.
> > > An alternative, which we use in Fedora for nv/vesa is to use
> > > pci_device_has_kernel_driver() from libpciaccess.
> > 
> > That seems better than open-coding it, and avoids a dependency on libdrm
> > which is nice.
> 
> Well, you are trading one dependency for other. It doesn't really matter...
> Ben, are you going to send your patch to Aaron?

Yeah, but the server already has a dependency on libpciaccess, while the
libdrm dependency is just for a module, and I think might be optional (I
haven't kept up with the dri2 patches on the list).

-- Aaron