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Chris Wilson authored
When we update the global seqno (on the engine timeline), we modify HW state (both registers and mapped pages). As we do this, we should be sure that the HW is idle and we are not causing a conflict. The caller is supposed to wait_for_idle before calling us to update the seqno, so let's assert they have and the engine is indeed idle. Signed-off-by:
Chris Wilson <chris@chris-wilson.co.uk> Link: http://patchwork.freedesktop.org/patch/msgid/20170405153055.28123-1-chris@chris-wilson.co.ukReviewed-by:
Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
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