[Intel-gfx] [PATCH 2/3] drm/i915/tgl: Implement Wa_1604555607

[Chris Wilson]

Quoting Tvrtko Ursulin (2019-07-26 14:34:56)
> 
> On 26/07/2019 14:20, Chris Wilson wrote:
> > We can do rmw inside ctx_wa if we have to thanks to MI_MATH. Should we
> > start preparing for that nightmare? :)
> 
> When you say preparing it makes it sounds complicated so I want to say 
> no. But sure, if you have extra time go for it.

The quick-and-dirty solution is to write the assembly routines by hand,
but Lionel mentioned that mesa might have a dsl we could use to create
MI_MATH routines.
-Chris