Re: [PATCH 1/3] drm/i915: Wait for render state init

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Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> writes:

> On Mon, Mar 16, 2015 at 04:20:46PM +0200, Mika Kuoppala wrote:
>> Perhaps not in the golden state, but do we push any workarounds through
>> render ring init, that are global in scope and required by the other rings?
>
> No. Afaict the w/a only apply to render. Or else we have been horribly
> misinformed. I still suspect it is something due to the ordering of pd
> loads between rings. Serialising the render context init should not fix
> the similar hangs we see at runtime.

Ok please ignore this patch then. I will send another that
does the immediate tail updates on ring->mm_switch.

-Mika

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