Re: [PATCH 4/7] drm/i915: Cache LRC state page in the context

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On 11/01/16 14:29, Chris Wilson wrote:
On Mon, Jan 11, 2016 at 02:08:38PM +0000, Tvrtko Ursulin wrote:
From: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>

LRC lifetime is well defined so we can cache the page pointing
to the object backing store in the context in order to avoid
walking over the object SG page list from the interrupt context
without the big lock held.

You can keep kmap around for the pinned lifetime of the context.

Baby steps. :)

Regards,

Tvrtko
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