TTM placement & caching issue/questions

[Benjamin Herrenschmidt]

On Wed, 2014-09-03 at 22:07 -0400, Jerome Glisse wrote:

> So in the meantime the attached patch should work, it just silently ignore
> the caching attribute request on non x86 instead of pretending that things
> are setup as expected and then latter the radeon ou nouveau hw unsetting
> the snoop bit.
> 
> It's not tested but i think it should work.

I'm still getting placements with !CACHED going from bo_memcpy in
ttm_io_prot() though ... I'm looking at filtering the placement
attributes instead.

Ben.

> > 
> > Cheers,
> > Jérôme
> > 
> > > 
> > > Cheers,
> > > Ben.
> > > 
> > > 
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