Files
linux/drivers
Chris Wilson d0aa694b92 drm/i915/pmu: Always sample an active ringbuffer
As we no longer have a precise indication of requests queued to an
engine, make no presumptions and just sample the ring registers to see
if the engine is busy.

v2: Report busy while the ring is idling on a semaphore/event.
v3: Give the struct a name!
v4: Always 0 outside the powerwell; trusting the powerwell is
accurate enough for our sampling pmu.
v5: Protect against gen7 mmio madness and try to improve grammar

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190223000102.14290-1-chris@chris-wilson.co.uk
2019-02-23 09:23:57 +00:00
..
2019-02-18 13:27:15 +10:00
2018-12-29 08:20:44 -07:00
2018-12-10 10:17:45 +01:00
2019-01-09 19:20:31 -05:00
2019-01-26 11:14:25 +01:00
2019-02-01 15:53:54 +01:00
2019-02-13 08:41:15 +01:00
2018-12-06 15:45:46 +01:00
2019-02-18 13:27:15 +10:00
2018-12-24 12:06:56 +01:00
2019-02-18 13:27:15 +10:00
2019-01-28 22:53:09 -08:00