On Wed, Jul 03, 2013 at 10:07:57AM +0200, Daniel Vetter wrote: > Otherwise we can't resurrect the bsd ring on gm45 completely. I've > discovered this trick because module reload recovered the bsd ring, > making it clear that it's not an issue with the hw or our reset code. > > While touching the code update the comment to be a bit clearer about > what we actually want to reinitialize and which pieces we better leave > untouched. > > Note: In my opinion this is not a stable candidate - historically such > seemingly correct looking changes in the reset code have lead to big > heaps of scary hilarity. At the expense of leaking all allocated state from earlier. The magic ingredient here I guess is the resetting of the HWS. -Chris -- Chris Wilson, Intel Open Source Technology Centre
