Re: [Intel-gfx] Linux 3.16-rc2

[Chris Wilson]

On Mon, Jul 07, 2014 at 05:16:13PM +0200, Daniel Vetter wrote:
> On Wed, Jul 02, 2014 at 06:18:41PM +0200, Thomas Meyer wrote:
> > Hi,
> > 
> > this patch on top of v3.16-rc3-62-gd92a333 makes the resume from ram
> > regression go away on my machine:
> 
> Hm, we could conditionalize this hack on IS_G4X ... Chris, thoughts?

As different machines favour different w/a, I think the issue is mostly
timing related. It could be sequence of register writes, but we tried
different orders early on. The next experiment I guess would be to
insert small delays between each write to see if that helps. Or to write
each register twice.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
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