linux/drivers/gpu
Tobias Jakobi 7c3fc2b5cc drm/exynos: g2d: use autosuspend mode for PM runtime
The runqueue worker currently issues a get() when a new
node is processed, and a put() once a node is completed.

The corresponding suspend and resume calls currently only
do clock gating, but with the upcoming introduction of
IOMMU runpm also the corresponding IOMMU domain gets
enabled (for get()) and disabled (for put()). This
introduces performance regressions with we mitigate here.

Switch PM runtime to autosuspend, such that clock gating
and IOMMU control only happens when the engine is idle for
a 'long' time.

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-10-01 00:39:41 +09:00
..
drm drm/exynos: g2d: use autosuspend mode for PM runtime 2016-10-01 00:39:41 +09:00
host1x drm/tegra: dsi: Enhance runtime power management 2016-08-24 15:58:57 +02:00
ipu-v3 gpu: ipu-v3: Add queued image conversion support 2016-09-19 08:30:27 +02:00
vga vgaarbiter: rst-ifiy and polish kerneldoc 2016-08-16 18:49:56 +02:00
Makefile