On Wed, 2003-10-15 at 14:57, Jon Smirl wrote: > --- Eric Anholt <[EMAIL PROTECTED]> wrote: > > If the Linux drivers go to probing PCI IDs, could it also start creating > > /dev/dri/cardXs which are associated with a specific piece of hardware? > > The get/set unique thing is a problem, though. It seems to me that we > > ought to have /dev/dri/cardX start with a unique value reporting > > sufficient information to identify it. A new server would do getuniques > > on the /dev/dri/cardXs until it found one matching the hardware it was > > trying to use the drm for. If an old server does a setunique, then it > > overrides what the kernel had, and at some unspecified time in the > > future we could deprecate that interface. This eliminates the need for > > a separate get_suggested_unique ioctl. > > > This was the first way I coded it. But when you specificy a driver name in > xconfig and no BUSID, xfree uses drmOpenByName(). OpenByName searches the > drivers for the driver name and a bank unique id, then sets it. Since the only > driver with the right driver name already has the unique id filled in, Xfree > fails to load. To fix this you would have to change the existing binaries.
Seems like we need a set-understood-version ioctl. What I'm imagining is an ioctl that takes in a DRM interface version and/or card-specific DRM interface version. It can then adjust its response to other ioctls appropriately. It would return the maximum of those versions that are understood (which is sort of a duplicate of the current version ioctl, but the generic DRM interface version is the new part). There would be a hook for the card-specific part of the DRM to get this understood version information, too, which may help in dealing with the radeon issues that have been discussed. Does this seem like a good idea? -- Eric Anholt [EMAIL PROTECTED] http://people.freebsd.org/~anholt/ [EMAIL PROTECTED] ------------------------------------------------------- This SF.net email is sponsored by: SF.net Giveback Program. SourceForge.net hosts over 70,000 Open Source Projects. See the people who have HELPED US provide better services: Click here: http://sourceforge.net/supporters.php _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
