On 12 September 2014 20:26, Alan Cox <a...@lxorguk.ukuu.org.uk> wrote: > On Fri, 12 Sep 2014 13:57:20 +1000 > Dave Airlie <airl...@gmail.com> wrote: > >> Got an bug report from someone using a silicon motion video card in >> VGA mode about corruption that they tracked down to 64-bit memory >> operations not being supported by the video card, it appears that we >> probably shouldn't be using > 32-bit copies on VGA memory. > > VGA memory is write combining usually so the answer in general would be > no. You may also find its a combination of bridge and card and one or the > other is somehow out of spec.
Well I'm not shocked that an SMI GPU is out of spec, just not sure how we can workaround it. Dave. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/