Chris Wilson 3a122c2767 drm/i915: Limit i915_ring_test_irq debugfs to actual rings
For simplicity in testing, only report known rings in the mask. This
allows userspace to try and trigger a missed irq on every ring and do a
comparison between i915_ring_test_irq and i915_ring_missed_irq to see if
any rings failed.

v2: Move the debug message to after the rings are selected (so that the
message accurately reflects reality)

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1466170505-8048-1-git-send-email-chris@chris-wilson.co.uk
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
2016-07-04 10:32:57 +01:00
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