On Mon, Jan 18, 2016 at 01:07:10PM -0700, Stephen Warren wrote: > On 01/14/2016 01:26 PM, Simon Glass wrote: > >This seems to give the best performance, so let's use it always. > > I thought we chose the current cache mode due to display corruption issues > with other modes, but I tested a change that I believe does the same as this > change on Seaboard without any apparent issue so, > > Acked-by: Stephen Warren <swar...@nvidia.com>
I think for framebuffers the best option is still write-combine, which
would be something like:
DCACHE_WRITECOMBINE = DCACHE_OFF | TTB_SECT_B_MASK
on ARM v7. Did you ever benchmark that against DCACHE_WRITETHROUGH? It
should be faster provided that you never read from the region.
Thierry
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