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Chris Wilson authored
The PRM (Vol 1, p32) specifies that the URB_FENCE command must not cross a cache-line boundary (64-bytes) in order to workaround a silicon issue. Ensure that it does not by inserting an alignment point before the atomic section. This is a slightly too large hammer, but the easiest method to work with the current BEGIN_BATCH/ADVANCE_BATCH protections. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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