[Intel-gfx] [PATCH 02/12] drm/i915: Provide PDP updates via MMIO

[Ben Widawsky]

On Mon, Nov 25, 2013 at 09:54:33AM -0800, Ben Widawsky wrote:
> The initial implementation of this function used MMIO to write the PDPs.
> Upon review it was determined (correctly) that the docs say to use LRI.
> The issue is there are times where we want to do a synchronous write
> (GPU reset).
> 
> I've tested this, and it works. I've verified with as many people as
> possible that it should work.
> 
> This should fix the failing reset problems.
> 
> Signed-off-by: Ben Widawsky <ben at bwidawsk.net>

One addition to the commit message. I haven't tried this patch alone for
the reset fix. I have a bunch of other stuff on top. I can try to
isolate if this was all that was required ASAP.

[snip]
 

-- 
Ben Widawsky, Intel Open Source Technology Center