Messages in this thread | | | From | Jesse Barnes <> | Subject | Re: multi-domain PCI and sysfs | Date | Wed, 8 Sep 2004 09:02:14 -0700 |
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On Tuesday, September 7, 2004 11:01 pm, Jon Smirl wrote: > X on GL is going to eliminate all device access from X. Everything > will be handled from the OpenGL layer. When everything is finished > even the OpenGL layer won't do hardware access either, it will IOCTL > the DRM driver to do it. In the final solution the only user of the > VGA control should be the secondary card reset program.
Oh right, I forgot. Anyway, the card reset program needs to get at this stuff somehow.
> Where is the PCI segment base address stored in the PCI driver > structures? I'm still having trouble with the fact that the PCI driver > does not have a clear structure representing a PCI segment. Shouldn't > there be a structure corresponding to a segment?
That would be nice, maybe an extra resource or something? I haven't looked at the sparc code, but it probably deals with this (sn2 has platform specific functions to get the base address for a bus).
> From what I understand right now the SN2 machine can not have two > active VGA cards since it does not have two PCI segments. Without two > segments there is no way to tell the legacy addresses apart.
sn2 does have multiple PCI segments, we just don't export them yet.
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