[Intel-gfx] [PATCH 00/10] gmbus/dp aux irqfication

[Chris Wilson]

On Sat,  1 Dec 2012 13:53:39 +0100, Daniel Vetter <daniel.vetter at ffwll.ch> wrote:
> Hi all,
> 
> Irq-drive gmbus/dp aux transfer, simply because we can (and at least in the case
> of gmbus, it's quite a bit faster than the msleep(1) loop - we now reliably
> transfer at full wire speed insteaf of sometimes 2-3x slower).
> 
> Compared to the older version I've floated on irc way back and which Chris has
> carried around in his wip branchs (and inflicted upon tons of unsuspecting bug
> reporters) there are a few differences:
> - handle the hpd vs. setup race - even the current code enables hpd processing
>   before the fbdev is set up, which is too early.
> - fix the gen4 gmbus support, was totally busted.
> - tested on hsw (although all the relevant bits are a 100% match with cpt/ivb).
> - disable dp aux irq on vlv - too complicated to get at the docs (moved again,
>   old access revoked) and I don't have the hw.
> 
> While reviewing this patch series I've also noticed two small things in the irq
> handling code in general, patches for that at the beginning of the series.
> 
> Comment&review highgly welcome.

gm45 appears to be functioning big time, good start. The init sequence
looks less convoluted and better understood now, so I am reasonably
happy with this series. Will report back later after more testing.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre