[Bug 784494] glupload: Put directviv upload high priority than dma upload
GStreamer (GNOME Bugzilla)
bugzilla at gnome.org
Tue Jul 4 05:50:37 UTC 2017
https://bugzilla.gnome.org/show_bug.cgi?id=784494
--- Comment #3 from Haihua Hu <jared.hu at nxp.com> ---
(In reply to Sebastian Dröge (slomo) from comment #2)
> Why? If both are available and can be used, it shouldn't really make a
> difference?
Yes, both are supported on i.MX8 platform. We add memory copy in dma upload to
support none dma case on other platform. The new vpu on imx8 only can output
physical memory buffer, then it will go through the dma memory copy and
performance is bad. Actually, it can go through directviv with zero-copy.
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