Re: Sparc64 and ATI fb, cannot mmap() - why?

From: Jakub Jelinek (jakub@redhat.com)
Date: Tue Jun 20 2000 - 05:18:06 EST


On Tue, Jun 20, 2000 at 12:09:16PM +0200, Francis Galiegue wrote:
> All is in the subject...

First of all, there is a sparclinux mailing list which is much more
appropriate.
Second, subject does not tell anything.
mmap works just fine on Mach64. So the question is what you're trying to do,
if with some X server (which one, with what patches) or if you're just
mmaping it in some application.
Just one thing: neither Mach64 nor any SBUS/UPA /dev/fb has the typical
fbcon mmap layout where you have RAM at 0 and IO registers after it.
You have to know the offsets at which to map various interesting things.

        Jakub

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