[ECOS] PCI device driver questions

John Newlin jnewlin@rawbw.com
Fri Jan 30 22:21:00 GMT 2004


I'm working on the driver for a PCI device.

There is a region of Bus Address space reserved for mapping PCI I/O and
PCI memory regions.

Where in the PCI driver does one map a processor physical address to a PCI
32/64 bit address.

For example:  If I have one device on PCI that has 1 4MB memory BAR, how
would one map that 4MB region into local processor space.

Pointers to some code examples would be great!


-John Newlin

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