[mipsel+rs780e]Occasionally "GPU lockup" after resuming from suspend.

[Chen Jie]

在 2012年2月16日 下午5:21，Chen Jie <chenj at lemote.com> 写道：
> Hi,
>
> 在 2012年2月15日 下午11:53，Jerome Glisse <j.glisse at gmail.com> 写道：
>> To me it looks like the CP is trying to fetch memory but the
>> GPU memory controller fail to fullfill cp request. Did you
>> check the PCI configuration before & after (when things don't
>> work) My best guest is PCI bus mastering is no properly working
>> or the PCIE GPU gart table as wrong data.
>>
>> Maybe one need to drop bus master and reenable bus master to
>> work around some bug...
> Thanks for your suggestion. We've tried the 'drop and reenable master'
> trick, unfortunately doesn't work.
> The PCI configuration compare will be done later.
Update: We've checked the first 64 bytes of PCI configuration space
before & after, and didn't find any difference.



Regards,
-- Chen Jie