drm/i915/gt: ce->inflight updates are now serialised

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Since schedule-in and schedule-out are now both always under the tasklet
bitlock, we can reduce the individual atomic operations to simple
instructions and worry less.

This notably eliminates the race observed with intel_context_inflight in
__engine_unpark().

Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/2583
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201224135544.1713-9-chris@chris-wilson.co.uk

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Chris Wilson 2020-12-24 13:55:44 +00:00

parent ac1a6d7310

commit 177b7a52a1

1 changed files with 25 additions and 27 deletions

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52

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

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