[Mesa-dev] [RFC] panfrost/midgard: Hack some bits to get things working on T720

Alyssa Rosenzweig alyssa.rosenzweig at collabora.com
Wed Jun 12 13:58:37 UTC 2019

> +        uint32_t *known_unknown = ((void*)ctx->misc_0.cpu + 40960);
> +        *known_unknown = 0xa0000000;
> +

This is doubly scary, since misc_0 is marked INVISIBLE/GROWABLE. Rob
has been coding under the assumption growable must never be accessed
CPU-side. If this is strictly necessary (and not just covering up a
different bug), this would potentially require kernel side assistance.
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