90f4fcd56b
Before suspending (or unloading), we would first wait upon all rendering to be completed and then disable the rings. This later step is a remanent from DRI1 days when we did not use request tracking for all operations upon the ring. Now that we are sure we are waiting upon the very last operation by the engine, we can forgo clobbering the ring registers, though we do keep the assert that the engine is indeed idle before sleeping. 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/1470388464-28458-5-git-send-email-chris@chris-wilson.co.uk |
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