[RFC PATCH 0/3] staging: remove fbdev drivers

Gerd Hoffmann kraxel at redhat.com
Tue Dec 13 07:33:24 UTC 2016


> The acceleration that most of the 2D things provide isn't ever that
> great, and shadowing is a lot more effective if done properly.

That is probably true for anything pci-ish, because those devices are
optimized for memory writes and reads are horribly slow.  So you surely
want avoid device memory reads and shadowing is a effective way to do

On arm hardware the tradeoff may look quite different, the cpus are
relatively slow and I think most arm gpus don't have dedicated device
memory ...


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