Friedrich Steven E CONT CNIN wrote:
> If you want to mmap the device then you really want to put the
> device in its own 4K aligned 4K sized PCI window, otherwise adjacent
> devices will become accessible too and that might not be desirable.
If you can, reprogram the device's PCI configuration to have a 4k or
more sized window. (You said you were willing to move functionality
into the hardware, so I assume you can do this). That guarantees it
will be page aligned, and without other devices overlapping in
userspace.
-- Jamie
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