thorpej 645664c6f1 In bus_mem_unmap(), pass kernel_map to kmem_free(), rather than
kmem_map (the VA space is allocated from kernel_map).

In both bus_mem_map() and bus_mem_unmap(), adjust some arithmetic to
avoid wasting a page of VA space per call to bus_mem_map().
1996-05-12 19:02:19 +00:00
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