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As we allow per-context engine allows the legacy concept of I915_EXEC_RING no longer applies universally. We are still exposing the unrelated exec-id in GEM_BUSY, so transition this ioctl (once more slightly changing its ABI, but no one cares) over to only reporting the uabi-class (not instance as we can not foreseeably fit those into the small bitmask). The only user of the extended ring information from GEM_BUSY is ddx/sna, which tries to use the non-rcs business information to guide which engine to use for subsequent operations on foreign bo. All that matters for it is the decision between rcs and !rcs, so it is unaffected by the change in higher bits. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190305162643.20243-1-chris@chris-wilson.co.uk |
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