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Chris Wilson authored
With 5 rings and a flush, we need 192 bytes of space to emit the breadcrumb and semaphores. However, we need some spare room the size of the single largest packet (36 dwords, 144 bytes) to accommodate wraparound giving a grand total of 336 bytes Signed-off-by:
Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by:
Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1461917226-9132-1-git-send-email-chris@chris-wilson.co.uk
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