drm/i915: Add background commentary to "waitboosting"
authorChris Wilson <chris@chris-wilson.co.uk>
Mon, 4 Jul 2016 07:08:35 +0000 (08:08 +0100)
committerChris Wilson <chris@chris-wilson.co.uk>
Mon, 4 Jul 2016 07:18:22 +0000 (08:18 +0100)
commitdf4ba5099f80dac5f822c22937c37860ddd8e434
tree266ab7a41ad98b7d09eb702b993d7f1edfa164ad
parent0e6883b043754a44a682a8f8393862e0ef0490dc
drm/i915: Add background commentary to "waitboosting"

Describe the intent of boosting the GPU frequency to maximum before
waiting on the GPU.

RPS waitboosting was introduced with commit b29c19b64528 ("drm/i915:
Boost RPS frequency for CPU stalls") but lacked a concise comment in the
code to explain itself.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1467616119-4093-5-git-send-email-chris@chris-wilson.co.uk
drivers/gpu/drm/i915/i915_gem.c