[Intel-gfx] [PATCH 4/4] drm/i915: Cleanup instdone state when idle

[Chris Wilson]

On Mon, 13 Aug 2012 22:41:11 -0700, Ben Widawsky <ben at bwidawsk.net> wrote:
> The previous state is bogus when we've gone into idle. Actually there
> would be a known state of idle (ie. all units are done), but since it
> differs for every platform, we can just set 0, and let the hangcheck
> progress as normal.
> 
> References: https://bugs.freedesktop.org/show_bug.cgi?id=52429
> Tested-by: Guang A Yang <guang.a.yang at intel.com>
> Signed-off-by: Ben Widawsky <ben at bwidawsk.net>

I think you have a point, but I don't think this should be just on idle.
Everytime we kick off the hangcheck, we should not be comparing to stale
state.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre