Re: [PATCH 00/30] drm/i915: Lots of workaround changes

[Ben Widawsky <ben@bwidawsk.net>]

On Fri, Jul 05, 2013 at 04:48:18PM +0300, ville.syrjala@linux.intel.com wrote:
> I was going over the workaround database with VLV mainly in mind, but I
> ended up stumbling on quite a few others as well.
> 
> This series adds the workarounds names in a bunch of places where we
> missed them, adds a few workarounds we seem to have missed, drops some
> that were never supposed to be there, and drops quite a few pre-production
> workarounds.
> 
> I'm not sure we want to drop some of the VLV workarounds quite yet. I know
> Jani will hate me when he comes back from vacation since his current machine
> would be affected.
> 
> I've run these on my VLV and IVB machines, and didn't spot any problems.
> The SNB and HSW ones I've not actually tested.

I have a sneaking suspicion at least a few of these will blow up once
their in the wild. You're trusting the docs an awful lot. At least the
patches seem quite bisectable though, so that's a saving grace.

One thing which might be interesting/compelling is some performance data
(especially around places where you've removed unneeded workarounds).

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-- 
Ben Widawsky, Intel Open Source Technology Center