Related-To: NEO-6575
This is needed to fix accessing IoctlHelper
after driver detach.
This way we are also reducing accessing
sysfs file in Drm::getPrelimVersion
Signed-off-by: Szymon Morek <szymon.morek@intel.com>
Related-To: NEO-6510
Check which prelim version is being used.
Select proper IoctlHelper based on that version.
If no version found, switch to upstream instead.
Source of prelim headers:
https://github.com/intel-gpu/drm-uapi-helper
Signed-off-by: Szymon Morek <szymon.morek@intel.com>