drm/i915/gt: Decouple inflight virtual engines

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Once a virtual engine has been bound to a sibling, it will remain bound
until we finally schedule out the last active request. We can not rebind
the context to a new sibling while it is inflight as the context save
will conflict, hence we wait. As we cannot then use any other sibliing
while the context is inflight, only kick the bound sibling while it
inflight and upon scheduling out the kick the rest (so that we can swap
engines on timeslicing if the previously bound engine becomes
oversubscribed).

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201224135544.1713-3-chris@chris-wilson.co.uk

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Chris Wilson 2020-12-24 13:55:38 +00:00

parent 64b7a3fa7e

commit 2efa2c522a

1 changed files with 12 additions and 16 deletions

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drivers/gpu/drm/i915/gt/intel_execlists_submission.c

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