On Tue, Jul 31, 2001 at 05:26:00PM -0400, Nathan J. Williams wrote:

 > > Who cares where it's mapped in the CPU's address space... if it's
 > > ISA, it has to be compatible with ISA devices, which means it has
 > > to conform to certain constraints.
 > 
 > We're failing to communicate... I think they read your comment a few
 > messages ago in this thread:
 > 
 > On Mon, Jul 30, 2001 at 12:23:41PM -0700, Jason R Thorpe wrote:
 > > On Mon, Jul 30, 2001 at 12:16:37PM -0700, Bill Studenmund wrote:
 > > 
 > >  > True, but then wouldn't both of these isa busses appear in different parts
 > >  > of the processor's address space?
 > >  > 
 > >  > Does our isa code deal with isa busses not being at 0-1 MB?
 > > 
 > > Um, that can't happen :-)
 > 
 > as referring to 0-1MB of the CPU address space, not 0-1MB of the PCI
 > address space.

All, well, on almost all platforms *OTHER* than the PC, the ISA bus
is in fact not in 0-1MB of CPU address space.

-- 
        -- Jason R. Thorpe <thorpej@zembu.com>