[Intel-gfx] [PATCH] drm/i915: Don't override PPGTT cacheability on HSW

Ben Widawsky ben at bwidawsk.net
Wed Apr 3 22:41:05 CEST 2013


On Wed, Apr 03, 2013 at 10:08:26PM +0200, Daniel Vetter wrote:
> On Wed, Apr 3, 2013 at 9:33 PM, Daniel Vetter <daniel at ffwll.ch> wrote:
> > So I've checked hsw bspec and the problem is that hw guys again
> > changed the bits around a bit, and I think on HSW we actually want
> > (0x8 << 3) instead of what's currently there.
> 
> Meh, I've screwed up reading the tables, 0x3 << 3 is what we imo want,
> so nothing needs to be changed. Sorry for the confusion.
> -Daniel

I think the existing code is magic that we don't/shouldn't need. But I
also see no reason to change it.

-- 
Ben Widawsky, Intel Open Source Technology Center



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