[Linaro-mm-sig] thoughts of looking at android fences

[Rob Clark]

On Wed, Oct 2, 2013 at 2:13 PM, Erik Gilling <konkers at android.com> wrote:
>> The lock is provided by the driver, which makes adding support for old hardware that has no reliable way of notifying completion of events easier.
>
> I'm a bit confused here how it's possible to implement sync on
> hardware with "no reliable way of notifying completion of events."  That
> seems like a non-starter to me.

I suspect Maarten meant "no reliable way of notifying completion *to
the cpu*".. which isn't strictly needed for gpu<->gpu sharing.

BR,
-R