Arne Georg Gleditsch arne.gleditsch@numascale.com writes:
Regarding hangs, I suspect this might be a PCI config race condition between the cores. I tried to adjust my configuration to use MMCONFIG to address this. It didn't seem to be supported out of the box, and I didn't have the time to look into it further at the moment. I still intend to do so, but it would be nice to know if anyone is using MMCONFIG with fam10 configurations. Is it supposed to work?
Having looked at it some more, it is hard to see how mmconf support can possibly be functional at the moment. I've made some progress on getting it to work on my s2912 test rig; I'm appending the patch I'm currently running. (This is against r5200.)
Nice... !
I've been wondering before... why this odd approach with read8x and gs:... instead of just doing normal read8/16/32 ?
Where's %gs set up for romcc_io usage?
Stefan