On Wed, Feb 24, 2010 at 02:17:45AM +0100, Joerg Sonnenberger wrote: > On Tue, Feb 23, 2010 at 06:51:56PM -0600, David Young wrote: > > On Wed, Feb 24, 2010 at 01:19:41AM +0100, Joerg Sonnenberger wrote: > > > Would it be reasonable to add a new MI variable > > > bool pci_use_64bit_addressing; > > > > This seems like a property that the MD mainbus_attach() routine should > > set on the pcibus_attach_args before it attaches the host bridge(s). It > > may suffice simply to initialize pba_dmat64 to non-NULL. > > ...and the child checks for pa_dmat64 != NULL?
That is what pci_dma64_available(pa) does. twa(4) uses that. Dave -- David Young OJC Technologies [email protected] Urbana, IL * (217) 278-3933
