Allow registers to be mapped in WSDISPLAYIO_MODE_MAPPED mode, if machdep.allowaperture > 0. To be used by the xserver shortly.
Allow registers to be mapped in WSDISPLAYIO_MODE_MAPPED mode, if
machdep.allowaperture > 0. To be used by the xserver shortly.

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars