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authorChris Wilson <chris@chris-wilson.co.uk>2010-10-13 10:09:14 +0100
committerChris Wilson <chris@chris-wilson.co.uk>2010-10-19 09:17:11 +0100
commite60a0b107b3df072e23cb6d68510aa2615b059ce (patch)
tree2cb350c6d8bd2a67bcb32b26e6d74808a86d042e /include/drm
parent7b5337ddbaf7e4b71ef6fd6307c6f9ef84f636e9 (diff)
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drm/i915: Sleep whilst waiting for the ring
If userspace is submitting so many long running batches that the ring becomes full, throttle by sleeping for a 1ms before checking for free space. Simply yielding was causing excessive scheduler overhead whilst making no progress. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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