Useful for places where a given chipset may or may not have a given resource, and we want to avoid having to spray checks for the mm's existance around everywhere. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Useful for places where a given chipset may or may not have a given resource, and we want to avoid having to spray checks for the mm's existance around everywhere. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>