gart table recovery V2

[Christian König]

Reviewed-by: Christian König <christian.koenig at amd.com> for the whole 
series.

Regards,
Christian.

Am 30.08.2016 um 11:32 schrieb Chunming Zhou:
> save gtt info by list, re-bind gtt after gpu reset.
> V2:
> spinlock instead of mutex.
> rename function name.
> recover gart table ahead of ring test.
>
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