[Intel-gfx] [CI 10/10] drm/i915: Allow specification of parallel execbuf

2019-05-21 Thread Chris Wilson
There is a desire to split a task onto two engines and have them run at the same time, e.g. scanline interleaving to spread the workload evenly. Through the use of the out-fence from the first execbuf, we can coordinate secondary execbuf to only become ready simultaneously with the first, so that

[Intel-gfx] [CI 10/10] drm/i915: Allow specification of parallel execbuf

2019-05-21 Thread Chris Wilson
There is a desire to split a task onto two engines and have them run at the same time, e.g. scanline interleaving to spread the workload evenly. Through the use of the out-fence from the first execbuf, we can coordinate secondary execbuf to only become ready simultaneously with the first, so that