Re: [PATCH 08/30] drm/i915: We implement WaMiSetContext_Hang

Chris Wilson
2013-07-05T14:05:36Z

On Fri, Jul 05, 2013 at 04:48:26PM +0300, ville.syrjala@linux.intel.com wrote:
> From: Ville Syrjälä <ville.syrjala@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