[Intel-gfx] [PATCH] drm/i915: Actually make per-fd contexts useful

[Dave Gordon]

On 21/01/15 13:13, Mika Kuoppala wrote:
> Chris Wilson <chris at chris-wilson.co.uk> writes:
> 
>> On Wed, Jan 21, 2015 at 12:11:11PM +0100, Daniel Vetter wrote:
>>> This goes back to when there was just one global context, when
>>> restoring kinda didn't make sense.
>>>
>>> Also with execlist we already have these semantics, so better to be a
>>> bit more consistent.
>>
>> Where are the benchmark results? The context switch has angered QA
>> before...
>>
> 
> What if we isolate fds and context by default but then let clients
> choose, by using per-context parameter, if they are ok with leftover
> state. From other context owned by them, or optionally even from
> other clients.
> 
> - Mika

And you'd also want to ask them whether they mind /their/ data leaking
out into /other/ clients' contexts :-!

.Dave.