[Intel-gfx] [PATCH] drm/i915: add a tracepoint for gpu frequency changes

[Chris Wilson]

On Sat, 01 Sep 2012 11:35:13 -0700, Ben Widawsky <ben at bwidawsk.net> wrote:
> I have no problem with Daniel's patch. It's just a matter of cutting 
> through some scheduler BS of "when the GPU wants to change frequency" 
> vs. "when we actually change the GPU frequency." I think *both* are 
> interesting.

We already trace the interrupt, which has been invaluable in
debugging. And there is no other source currently... :)
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre