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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2019-02-23 00:01:02 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-02-23 09:23:57 +0000 |
| commit | d0aa694b923960351ab79df021de7bbd7728d5cc (patch) | |
| tree | 021887dee8ef279d03af5e58172c5d9c5c8eacf1 /drivers/gpu/drm/i915/intel_ddi.c | |
| parent | 0a3317d43dfae7613b79d27f5fdca7c03feeecee (diff) | |
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
Diffstat (limited to 'drivers/gpu/drm/i915/intel_ddi.c')
0 files changed, 0 insertions, 0 deletions