]> git.baikalelectronics.ru Git - kernel.git/commit
projects / kernel.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: b1d6160) | patch
drm/i915: Limit ring synchronisation (sw sempahores) RPS boosts
authorChris Wilson <chris@chris-wilson.co.uk>
Mon, 27 Apr 2015 12:41:20 +0000 (13:41 +0100)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Thu, 21 May 2015 13:11:43 +0000 (15:11 +0200)
commita66f5a0fad936969539cb6b3964b52d2d25083e5
tree71b34650fbd4dd16d690a9a23eb2702ae0d31fa2tree | snapshot
parentb1d61608736e9b7034ac792be7cd26a71e37a41ccommit | diff
drm/i915: Limit ring synchronisation (sw sempahores) RPS boosts

Ring switches can occur many times per frame, and are often out of
control, causing frequent RPS boosting for no practical benefit. Treat
the sw semaphore synchronisation as a separate client and only allow it
to boost once per busy/idle cycle.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
[danvet: s/rq/req/]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/i915_debugfs.c diff | blob | history
drivers/gpu/drm/i915/i915_drv.h diff | blob | history
drivers/gpu/drm/i915/i915_gem.c diff | blob | history
drivers/gpu/drm/i915/intel_pm.c diff | blob | history
Linux Kernel Source Tree.