[PATCH 0/5] Fixes for MST (daisy-chain and 4k tiles)

[Wentland, Harry]

Hi Dave,

I've been running with lockdep with these changes for over a week now. Just ran another test with our daisy-chain displays and the 4k tiled display with no deadlocks or lockdep prints (other than "RCU lockdep checking is enabled.").

Thanks,
Harry

________________________________________
From: Dave Airlie <airlied at gmail.com>
Sent: Sunday, January 24, 2016 11:53 PM
To: Wentland, Harry
Cc: dri-devel
Subject: Re: [PATCH 0/5] Fixes for MST (daisy-chain and 4k tiles)

On 23 January 2016 at 08:07, Harry Wentland <harry.wentland at amd.com> wrote:
> A couple of MST fixes to bugs in the framework that we encountered when
> testing with
>   - three-display daisy-chain configurations
>   - 4k tiled displays

Hi Harry,

these all look pretty good to me, have you tested them with lockdep enabled?

I had started to fix the CSN/GUID one here a little while back but it's sitting
on a laptop I can't access at the moment.

But if you can test with lockdep, and it doesn't deadlock, then I'm happy
to accept these..

Reviewed-by: Dave Airlie <airlied at redhat.com>

Dave.
>
> Andrey Grodzovsky (1):
>   drm/dp/mst: Reverse order of MST enable and clearing VC payload table.
>
> Harry Wentland (2):
>   drm: Add drm_fixp_from_fraction and drm_fixp2int_ceil
>   drm/dp/mst: Calculate MST PBN with 31.32 fixed point
>
> Hersen Wu (1):
>   drm/dp/mst: move GUID storage from mgr, port to only mst branch
>
> Mykola Lysenko (1):
>   drm/dp/mst: change MST detection scheme
>
>  drivers/gpu/drm/drm_dp_mst_topology.c | 180 +++++++++++++++++-----------------
>  include/drm/drm_dp_mst_helper.h       |  25 ++---
>  include/drm/drm_fixed.h               |  54 +++++++++-
>  3 files changed, 154 insertions(+), 105 deletions(-)
>
> --
> 2.1.4
>
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