drm/i915: Open-code i915_gpu_idle() for handling seqno wrapping

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The complication is that during seqno wrapping we must be extremely
careful not to write to any ring as that will require a new seqno, and
so would recurse back into the seqno wrap handler. So we cannot call
i915_gpu_idle() as that does additional work beyond simply retiring the
current set of requests, and instead must do the minimal work ourselves
during seqno wrapping.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

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Chris Wilson 2012-12-10 13:56:17 +02:00 • committed by Daniel Vetter

parent f72b3435c1

commit 107f27a5df

1 changed files with 8 additions and 4 deletions

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drivers/gpu/drm/i915/i915_gem.c

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