On Wed, Oct 31, 2012 at 4:49 PM, Chris Wilson <chris at chris-wilson.co.uk> wrote: > Because it involves the driver stalling. And the coherent case of get_seqno is expensive. And depending upon workload we'll get quite some interrupts, since we can't filter for just the single batchbuffer completion we want at the hw level. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch
