drm/i915: Use coarse grained residency counter with byt

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Set byt rc residency counters high level as chv does by
default. We lose some accuracy on byt but we can do the calculation
without extra hw read on both platforms, as now they behave
identically in this respect.

v2: use ktime
v3: keep comparison u32 (Chris)

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/1489592584-10422-1-git-send-email-mika.kuoppala@intel.com

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Mika Kuoppala 2017-03-15 18:12:59 +02:00 • committed by Mika Kuoppala

parent 679cb6c132

commit 6b7f6aa75e

2 changed files with 4 additions and 12 deletions

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7

drivers/gpu/drm/i915/i915_irq.c

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9

drivers/gpu/drm/i915/intel_pm.c

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