drm/i915: Disable waitboosting for mmioflips/semaphores

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Since commit a6f766f397 ("drm/i915: Limit ring synchronisation (sw
sempahores) RPS boosts") and commit bcafc4e38b ("drm/i915: Limit mmio
flip RPS boosts") we have limited the waitboosting for semaphores and
flips. Ideally we do not want to boost in either of these instances as no
userspace consumer is waiting upon the results (though a userspace producer
may be stalled trying to submit an execbuf - but in this case the
producer is being throttled due to the engine being saturated with
work). With the introduction of NO_WAITBOOST in the previous patch, we
can finally disable these needless boosts.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1469002875-2335-6-git-send-email-chris@chris-wilson.co.uk

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This commit is contained in:

Chris Wilson 2016-07-20 09:21:13 +01:00

parent 42df271439

commit 197be2ae8b

5 changed files with 3 additions and 13 deletions

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8

drivers/gpu/drm/i915/i915_debugfs.c

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2

drivers/gpu/drm/i915/i915_drv.h

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2

drivers/gpu/drm/i915/i915_gem.c

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2

drivers/gpu/drm/i915/intel_display.c

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2

drivers/gpu/drm/i915/intel_pm.c

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