[PATCH 3/3] drm/etnaviv: use a 32 bit mask as coherent DMA mask
Michael Walle
michael at walle.cc
Thu Aug 26 12:43:26 UTC 2021
Am 2021-08-26 14:10, schrieb Michael Walle:
> The STLB and the first command buffer (which is used to set up the
> TLBs)
> has a 32 bit size restriction in hardware. There seems to be no way to
> specify addresses larger than 32 bit. Keep it simple and restict the
> addresses to the lower 4 GiB range for all coherent DMA memory
> allocations.
>
> Signed-off-by: Michael Walle <michael at walle.cc>
Suggested-by: Lucas Stach <l.stach at pengutronix.de>
is missing here. sorry, will add it in the next version.
-michael
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