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* drm/arcpgu: use dedicated memory area for frame bufferAlexey Brodkin2016-04-291-0/+6
| | | | | | | | | | | | | | | | | Now when ARC supports reserved memory areas and per-device coherent DMA allocations we may switch ARC PGU to use of those dedicated areas. One of the benefits we may move frame-buffer area out from IO Coherency aperture and so significantly reduce IOC utilization allowing less demanding peripherals to use all perks of IOC. Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: Dave Airlie <airlied@gmail.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: linux-kernel@vger.kernel.org Cc: linux-snps-arc@lists.infradead.org
* drm: Add support of ARC PGU display controllerCarlos Palminha2016-04-267-0/+842
ARC PGU could be found on some development boards from Synopsys. This is a simple byte streamer that reads data from a framebuffer and sends data to the single encoder. Signed-off-by: Carlos Palminha <palminha@synopsys.com> Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: David Airlie <airlied@linux.ie> Cc: dri-devel@lists.freedesktop.org Cc: linux-snps-arc@lists.infradead.org
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