On Thu, Mar 11, 2010 at 12:20:41PM -0800, Matt Thomas wrote: > On Mar 11, 2010, at 11:40 AM, David Young wrote: > > Resource management: > > > > PCI-* bridges can override bus_space_alloc(9)/bus_space_free(9) > > in order to (1) allocate space from the upstream bus, (2) > > widen/narrow its I/O- or memory-space window. Then we can > > provide a reliable rbus-like facility to detachable buses > > through bus_space(9). > > bus_dma_subregion can be used for that. So bus_space_subregion.
Matt, How do we open the windows? Dave -- David Young OJC Technologies dyo...@ojctech.com Urbana, IL * (217) 278-3933