ronan at cunniffe.net
Sun Jan 11 15:26:58 GMT 2004
Quoting Paul Jakma <paul at clubi.ie>:
> Bounce buffers: PCI has a 4GB address space (well PCI can have a
> 64bit address space using DAC, but that eats one PCI bus cycle (DAC =
So a "64-bit" PCI slot is 32-bit address, 64-bit data? I thought a 64-bit
device could access all of 64-bit memory.
If PCI is explicitly 32-bit, then WTF is the point of sticking a 64-bit chip in
I admit, my only serious reading on this is "Linux Device Drivers, 2nd Ed."
(O'Reilly), online at http://www.xml.com/ldd/chapter/book/. Given the amount of
help this book has been to me, I have to plug it just a little...
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