The main incentive to do this is to get I915_PARAM_REVISION.
v2: Rebase on top of some changes that were made to the header without
copying the whole file from the kernel source.
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Neil Roberts <neil@linux.intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>