[Bug 68451] Texture flicker in native Dota2 in mesa 9.2.0rc1

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=68451

--- Comment #33 from Alex Deucher <agd5f at yahoo.com> ---
(In reply to comment #27)
> fun observation:
> 
> Instead of reverting, setting this at the end of r600_cp_dma_copy_buffer()
> appears to fix it for me:
>     rctx->b.flags |= R600_CONTEXT_INV_VERTEX_CACHE;
> 
> (R600_CONTEXT_INV_CONST_CACHE will also work)
> 

Well, if we are using CP DMA to update a constant buffer or vertex buffer, we
need to flush the the apprortiate shader read caches.

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