[Intel-gfx] [PATCH 61/66] drm/i915: Use multiple VMs

Chris Wilson chris at chris-wilson.co.uk
Tue Jul 2 13:07:10 CEST 2013


On Tue, Jul 02, 2013 at 01:58:13PM +0300, Ville Syrjälä wrote:
> Also IIRC someone told me that w/ uncached mappings the caches aren't
> snooped even on LLC platforms. If that's true, MOCS seems even more
> dangerous since the client could easily mix cached and uncached
> accesses. I don't really understand why uncached mappings wouldn't
> snoop on LLC platforms since the snooping should be more or less free.

Who said that? Doesn't appear to be the case on SNB/IVB/HSW as far as I
can tell.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre



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