Re: 440GX: mapping PCI address

On Thu, Jul 22, 2004 at 09:43:26AM -0500, Barbier, Renaud (GE Infrastructure) wrote:

Indeed, I get a virtual address out of mmap
but my system freezes when I access it.
I try to access the PCI external configuration registers:

ptr=(unsigned int *)mmap(0, getpagesize(), PROT_READ | PROT_WRITE,
                             MAP_SHARED, fd, 0x0ec00000);


My kernel is 2.4.21 I would guess it should work from what I have seen regarding
messages about 36-bit address on 440GX.

Check the archives, I've posted a URL for the 36-bit mmap patch
several times.

-Matt (one who reads archives and googles to get FAQs answered :P)

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