On Fri, 3 Feb 2012 14:31:41 -0800, Ben Widawsky <ben at bwidawsk.net> wrote: > This is similar to a patch I wrote several months ago. It's been updated > for the new FORCEWAKE_MT, and it also no longer clears the debug > register as it may be helpful to get that for the error state. Also > recommended by Chris Wilson, use WARN() instead of DRM_ERROR, so we can > get a backtrace. > > Signed-off-by: Ben Widawsky <ben at bwidawsk.net> Can we use the read of GTFIFODBG in place of the POSTING_READ? And do we really need to watch all the GTFIFODBG reads in the trace, or can I squelch that noise with a I915_READ_NOTRACE? -Chris -- Chris Wilson, Intel Open Source Technology Centre
