[Intel-gfx] [PATCH 08/30] drm/i915: We implement WaMiSetContext_Hang

Chris Wilson chris at chris-wilson.co.uk
Fri Jul 5 16:05:30 CEST 2013


On Fri, Jul 05, 2013 at 04:48:26PM +0300, ville.syrjala at linux.intel.com wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> WaMiSetContext_Hang tells us that a MI_NOOP must follow MI_SET_CONTEXT.
> 
> The other thing WaMiSetContext_Hang seems to say is that URB_FENCE isn't
> allowed to straddle two cachelines. But we don't issue those from the
> kernel so we don't care.

URB_FENCE: Could be a cut'n'paste error from an earlier gen4 erratum? I
don't recall that being documented after the erratum was fixed in later
gen.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre



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