[PATCH v2 2/2] drm/omap: partial workaround for DRA7xx DMM errata i878

[Tomi Valkeinen]

On 04/04/18 00:11, Laurent Pinchart wrote:

> I assume access to DMM-mapped buffers to be way more frequent than access to 
> the DMM registers. If that's the case, this partial workaround should only 
> slightly lower the probability of system lock-up. Do you have plans to 
> implement a workaround that will fix the problem completely ?

CPU only accesses memory via DMM when using TILER 2D buffers, which are
not officially supported. For non-2D, the pages are mapped directly to
the CPU without DMM in between.

 Tomi

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