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From: "Ville Syrjälä" <ville.syrjala-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
To: Lyude Paul <lyude-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: sunpeng.li-5C7GfCeVMHo@public.gmane.org,
	Daniel Vetter <daniel.vetter-/w4YWyX8dFk@public.gmane.org>,
	Sean Paul <sean-p7yTbzM4H96eqtR555YLDQ@public.gmane.org>,
	amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org,
	dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Subject: Re: [PATCH 07/10] drm/i915: Implement MST Aux device registration
Date: Fri, 12 Jul 2019 23:15:25 +0300	[thread overview]
Message-ID: <20190712201525.GO5942@intel.com> (raw)
In-Reply-To: <20190712200559.GN5942-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>

On Fri, Jul 12, 2019 at 11:05:59PM +0300, Ville Syrjälä wrote:
> On Fri, Jul 12, 2019 at 03:48:53PM -0400, Lyude Paul wrote:
> > BTW, I just tried these patches on my T450s (using i915) and I'm seeing some
> > kernel warnings with them when adding DP aux devices after connecting a new
> > MST topology to the system: 
> > 
> > [  367.742571] WARNING: CPU: 2 PID: 442 at drivers/gpu/drm/drm_mode_object.c:45 __drm_mode_object_add+0xaa/0xb0 [drm]
> 
> Looks like Daniel added that particular WARN in
> commit 4f5368b5541a  ("drm/kms: Catch mode_object lifetime errors").

And I'm the one who added the max_bpc prop to the mst connectors, which
is a per-connector property (ie. a new one gets created for every
connecotor). So that could be a problem I suppose. I guess we may need
to create just one of these for MST and reuse it for every connector.
Could just point at the prop of the corresponding SST connector I
suppose...

+       /* Reuse the prop because blah */
+       connector->max_bpc_property =
+               intel_dp->attached_connector->base.max_bpc_property;
        drm_connector_attach_max_bpc_property(connector, 6, 12);


-- 
Ville Syrjälä
Intel
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  parent reply	other threads:[~2019-07-12 20:15 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-04 19:05 [PATCH 00/10] Enable MST Aux devices (v2) sunpeng.li-5C7GfCeVMHo
2019-07-04 19:05 ` [PATCH 03/10] drm/sysfs: Add mstpath attribute to connector devices sunpeng.li
     [not found]   ` <20190704190519.29525-4-sunpeng.li-5C7GfCeVMHo@public.gmane.org>
2019-07-04 19:33     ` Ville Syrjälä
2019-07-05 14:03       ` Li, Sun peng (Leo)
2019-07-05 14:32     ` [PATCH v2] " sunpeng.li-5C7GfCeVMHo
     [not found]       ` <20190705143220.11109-1-sunpeng.li-5C7GfCeVMHo@public.gmane.org>
2019-07-10 10:07         ` Ville Syrjälä
2019-07-10 22:50         ` Lyude Paul
     [not found]           ` <346980b73f3b1fbbc70cbf3771788cec0777d4c0.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2019-07-16 18:28             ` Li, Sun peng (Leo)
2019-07-16 20:28               ` Lyude Paul
     [not found] ` <20190704190519.29525-1-sunpeng.li-5C7GfCeVMHo@public.gmane.org>
2019-07-04 19:05   ` [PATCH 01/10] drm/dp: Use non-cyclic idr sunpeng.li-5C7GfCeVMHo
2019-07-04 19:05   ` [PATCH 02/10] drm/dp_mst: Enable registration of AUX devices for MST ports (v2) sunpeng.li-5C7GfCeVMHo
     [not found]     ` <20190704190519.29525-3-sunpeng.li-5C7GfCeVMHo@public.gmane.org>
2019-07-10 19:51       ` Lyude Paul
2019-07-10 23:25     ` Lyude Paul
2019-07-04 19:05   ` [PATCH 04/10] drm/nouveau: Use connector kdev as aux device parent sunpeng.li-5C7GfCeVMHo
2019-07-12 19:55     ` Lyude Paul
2019-07-04 19:05   ` [PATCH 05/10] drm/bridge/analogix-anx78xx: " sunpeng.li-5C7GfCeVMHo
2019-07-04 19:05   ` [PATCH 06/10] drm/amd/display: " sunpeng.li-5C7GfCeVMHo
2019-07-04 19:05   ` [PATCH 07/10] drm/i915: Implement MST Aux device registration sunpeng.li-5C7GfCeVMHo
2019-07-10 10:06     ` Ville Syrjälä
2019-07-12 19:48     ` Lyude Paul
2019-07-12 20:05       ` Ville Syrjälä
     [not found]         ` <20190712200559.GN5942-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2019-07-12 20:15           ` Ville Syrjälä [this message]
2019-07-23 14:01             ` Li, Sun peng (Leo)
2019-07-04 19:05   ` [PATCH 08/10] drm/nouveau/kms/nv50: " sunpeng.li-5C7GfCeVMHo
2019-07-12 19:54     ` Lyude Paul
2019-07-04 19:05   ` [PATCH 09/10] drm/radeon: " sunpeng.li-5C7GfCeVMHo
2019-07-04 19:05   ` [PATCH 10/10] drm/amd/display: " sunpeng.li-5C7GfCeVMHo
2019-07-09 19:10   ` [PATCH 00/10] Enable MST Aux devices (v2) Li, Sun peng (Leo)

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