[PATCH v2] drm/i915: Explicit the connector name for DP link training result

[PATCH v2] drm/i915: Explicit the connector name for DP link training result

[Paul Kocialkowski]

This adds the connector name when printing a debug message about the DP
link training result. It is useful to figure out what connector is
failing when multiple DP connectors are used.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@linux.intel.com>
---
 drivers/gpu/drm/i915/intel_dp_link_training.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_dp_link_training.c b/drivers/gpu/drm/i915/intel_dp_link_training.c
index b79c1c0e404c..05907fa8a553 100644
--- a/drivers/gpu/drm/i915/intel_dp_link_training.c
+++ b/drivers/gpu/drm/i915/intel_dp_link_training.c
@@ -321,12 +321,16 @@ intel_dp_start_link_train(struct intel_dp *intel_dp)
 	if (!intel_dp_link_training_channel_equalization(intel_dp))
 		goto failure_handling;
 
-	DRM_DEBUG_KMS("Link Training Passed at Link Rate = %d, Lane count = %d",
+	DRM_DEBUG_KMS("[CONNECTOR:%d:%s] Link Training Passed at Link Rate = %d, Lane count = %d",
+		      intel_connector->base.base.id,
+		      intel_connector->base.name,
 		      intel_dp->link_rate, intel_dp->lane_count);
 	return;
 
  failure_handling:
-	DRM_DEBUG_KMS("Link Training failed at link rate = %d, lane count = %d",
+	DRM_DEBUG_KMS("[CONNECTOR:%d:%s] Link Training failed at link rate = %d, lane count = %d",
+		      intel_connector->base.base.id,
+		      intel_connector->base.name,
 		      intel_dp->link_rate, intel_dp->lane_count);
 	if (!intel_dp_get_link_train_fallback_values(intel_dp,
 						     intel_dp->link_rate,
-- 
2.13.2

✓ Fi.CI.BAT: success for drm/i915: Explicit the connector name for DP link training result (rev2)

[Patchwork]

== Series Details ==

Series: drm/i915: Explicit the connector name for DP link training result (rev2)
URL   : https://patchwork.freedesktop.org/series/27410/
State : success

== Summary ==

Series 27410v2 drm/i915: Explicit the connector name for DP link training result
https://patchwork.freedesktop.org/api/1.0/series/27410/revisions/2/mbox/

Test gem_exec_suspend:
        Subgroup basic-s4-devices:
                pass       -> DMESG-WARN (fi-kbl-7560u) k.org#196399 +1
Test kms_pipe_crc_basic:
        Subgroup hang-read-crc-pipe-a:
                pass       -> DMESG-WARN (fi-pnv-d510) fdo#101597

k.org#196399 https://bugzilla.kernel.org/show_bug.cgi?id=196399
fdo#101597 https://bugs.freedesktop.org/show_bug.cgi?id=101597

fi-bdw-5557u     total:279  pass:268  dwarn:0   dfail:0   fail:0   skip:11  time:444s
fi-bdw-gvtdvm    total:279  pass:265  dwarn:0   dfail:0   fail:0   skip:14  time:434s
fi-blb-e6850     total:279  pass:224  dwarn:1   dfail:0   fail:0   skip:54  time:353s
fi-bsw-n3050     total:279  pass:243  dwarn:0   dfail:0   fail:0   skip:36  time:536s
fi-bxt-j4205     total:279  pass:260  dwarn:0   dfail:0   fail:0   skip:19  time:514s
fi-byt-j1900     total:279  pass:254  dwarn:1   dfail:0   fail:0   skip:24  time:495s
fi-byt-n2820     total:279  pass:251  dwarn:0   dfail:0   fail:0   skip:28  time:491s
fi-glk-2a        total:279  pass:260  dwarn:0   dfail:0   fail:0   skip:19  time:593s
fi-hsw-4770      total:279  pass:263  dwarn:0   dfail:0   fail:0   skip:16  time:437s
fi-hsw-4770r     total:279  pass:263  dwarn:0   dfail:0   fail:0   skip:16  time:410s
fi-ilk-650       total:279  pass:229  dwarn:0   dfail:0   fail:0   skip:50  time:415s
fi-ivb-3520m     total:279  pass:261  dwarn:0   dfail:0   fail:0   skip:18  time:490s
fi-ivb-3770      total:279  pass:261  dwarn:0   dfail:0   fail:0   skip:18  time:494s
fi-kbl-7500u     total:279  pass:261  dwarn:0   dfail:0   fail:0   skip:18  time:469s
fi-kbl-7560u     total:279  pass:268  dwarn:1   dfail:0   fail:0   skip:10  time:572s
fi-kbl-r         total:279  pass:261  dwarn:0   dfail:0   fail:0   skip:18  time:592s
fi-pnv-d510      total:279  pass:222  dwarn:2   dfail:0   fail:0   skip:55  time:559s
fi-skl-6260u     total:279  pass:269  dwarn:0   dfail:0   fail:0   skip:10  time:458s
fi-skl-6700hq    total:279  pass:262  dwarn:0   dfail:0   fail:0   skip:17  time:582s
fi-skl-6700k     total:279  pass:257  dwarn:4   dfail:0   fail:0   skip:18  time:469s
fi-skl-6770hq    total:279  pass:269  dwarn:0   dfail:0   fail:0   skip:10  time:482s
fi-skl-gvtdvm    total:279  pass:266  dwarn:0   dfail:0   fail:0   skip:13  time:441s
fi-skl-x1585l    total:279  pass:268  dwarn:0   dfail:0   fail:0   skip:11  time:466s
fi-snb-2520m     total:279  pass:251  dwarn:0   dfail:0   fail:0   skip:28  time:547s
fi-snb-2600      total:279  pass:250  dwarn:0   dfail:0   fail:0   skip:29  time:405s

10de1e17faaab452782e5a1baffd1b30a639a261 drm-tip: 2017y-07m-18d-10h-08m-42s UTC integration manifest
53ca378 drm/i915: Explicit the connector name for DP link training result

== Logs ==

For more details see: https://intel-gfx-ci.01.org/CI/Patchwork_5220/
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Re: [PATCH v2] drm/i915: Explicit the connector name for DP link training result

[Pandiyan, Dhinakaran]

On Tue, 2017-07-18 at 17:25 +0300, Paul Kocialkowski wrote:
> This adds the connector name when printing a debug message about the DP
> link training result. It is useful to figure out what connector is
> failing when multiple DP connectors are used.
> 
> Signed-off-by: Paul Kocialkowski <paul.kocialkowski@linux.intel.com>
> ---
>  drivers/gpu/drm/i915/intel_dp_link_training.c | 8 ++++++--
>  1 file changed, 6 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_dp_link_training.c b/drivers/gpu/drm/i915/intel_dp_link_training.c
> index b79c1c0e404c..05907fa8a553 100644
> --- a/drivers/gpu/drm/i915/intel_dp_link_training.c
> +++ b/drivers/gpu/drm/i915/intel_dp_link_training.c
> @@ -321,12 +321,16 @@ intel_dp_start_link_train(struct intel_dp *intel_dp)
>  	if (!intel_dp_link_training_channel_equalization(intel_dp))
>  		goto failure_handling;
>  
> -	DRM_DEBUG_KMS("Link Training Passed at Link Rate = %d, Lane count = %d",
> +	DRM_DEBUG_KMS("[CONNECTOR:%d:%s] Link Training Passed at Link Rate = %d, Lane count = %d",
> +		      intel_connector->base.base.id,
> +		      intel_connector->base.name,
>  		      intel_dp->link_rate, intel_dp->lane_count);
>  	return;
>  
>   failure_handling:
> -	DRM_DEBUG_KMS("Link Training failed at link rate = %d, lane count = %d",
> +	DRM_DEBUG_KMS("[CONNECTOR:%d:%s] Link Training failed at link rate = %d, lane count = %d",
> +		      intel_connector->base.base.id,
> +		      intel_connector->base.name,
>  		      intel_dp->link_rate, intel_dp->lane_count);
>  	if (!intel_dp_get_link_train_fallback_values(intel_dp,
>  						     intel_dp->link_rate,


Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>

The choice of upper v/s lower case letters in these debug messages is a
bit odd.

Passed/failed
Link rate/link rate
Lane count/lane count
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Re: [PATCH v2] drm/i915: Explicit the connector name for DP link training result

[Manasi Navare]

On Tue, Jul 18, 2017 at 05:25:36PM +0300, Paul Kocialkowski wrote:
> This adds the connector name when printing a debug message about the DP
> link training result. It is useful to figure out what connector is
> failing when multiple DP connectors are used.
>

Thanks for the patch, this does make sense during the link training
failure debugging to know the connector name.
While at it feel free to change "Failed", "Link Rate, Lane Count", to upper case
in the failure_handling case to be consistent with the pass case.

Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>

Manasi

> Signed-off-by: Paul Kocialkowski <paul.kocialkowski@linux.intel.com>
> ---
>  drivers/gpu/drm/i915/intel_dp_link_training.c | 8 ++++++--
>  1 file changed, 6 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_dp_link_training.c b/drivers/gpu/drm/i915/intel_dp_link_training.c
> index b79c1c0e404c..05907fa8a553 100644
> --- a/drivers/gpu/drm/i915/intel_dp_link_training.c
> +++ b/drivers/gpu/drm/i915/intel_dp_link_training.c
> @@ -321,12 +321,16 @@ intel_dp_start_link_train(struct intel_dp *intel_dp)
>  	if (!intel_dp_link_training_channel_equalization(intel_dp))
>  		goto failure_handling;
>  
> -	DRM_DEBUG_KMS("Link Training Passed at Link Rate = %d, Lane count = %d",
> +	DRM_DEBUG_KMS("[CONNECTOR:%d:%s] Link Training Passed at Link Rate = %d, Lane count = %d",
> +		      intel_connector->base.base.id,
> +		      intel_connector->base.name,
>  		      intel_dp->link_rate, intel_dp->lane_count);
>  	return;
>  
>   failure_handling:
> -	DRM_DEBUG_KMS("Link Training failed at link rate = %d, lane count = %d",
> +	DRM_DEBUG_KMS("[CONNECTOR:%d:%s] Link Training failed at link rate = %d, lane count = %d",
> +		      intel_connector->base.base.id,
> +		      intel_connector->base.name,
>  		      intel_dp->link_rate, intel_dp->lane_count);
>  	if (!intel_dp_get_link_train_fallback_values(intel_dp,
>  						     intel_dp->link_rate,
> -- 
> 2.13.2
> 
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Re: [PATCH v2] drm/i915: Explicit the connector name for DP link training result

[Daniel Vetter]

On Tue, Jul 18, 2017 at 12:20:36PM -0700, Manasi Navare wrote:
> On Tue, Jul 18, 2017 at 05:25:36PM +0300, Paul Kocialkowski wrote:
> > This adds the connector name when printing a debug message about the DP
> > link training result. It is useful to figure out what connector is
> > failing when multiple DP connectors are used.
> >
> 
> Thanks for the patch, this does make sense during the link training
> failure debugging to know the connector name.
> While at it feel free to change "Failed", "Link Rate, Lane Count", to upper case
> in the failure_handling case to be consistent with the pass case.
> 
> Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>

Applied, thanks.
-Daniel

> 
> Manasi
> 
> > Signed-off-by: Paul Kocialkowski <paul.kocialkowski@linux.intel.com>
> > ---
> >  drivers/gpu/drm/i915/intel_dp_link_training.c | 8 ++++++--
> >  1 file changed, 6 insertions(+), 2 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/i915/intel_dp_link_training.c b/drivers/gpu/drm/i915/intel_dp_link_training.c
> > index b79c1c0e404c..05907fa8a553 100644
> > --- a/drivers/gpu/drm/i915/intel_dp_link_training.c
> > +++ b/drivers/gpu/drm/i915/intel_dp_link_training.c
> > @@ -321,12 +321,16 @@ intel_dp_start_link_train(struct intel_dp *intel_dp)
> >  	if (!intel_dp_link_training_channel_equalization(intel_dp))
> >  		goto failure_handling;
> >  
> > -	DRM_DEBUG_KMS("Link Training Passed at Link Rate = %d, Lane count = %d",
> > +	DRM_DEBUG_KMS("[CONNECTOR:%d:%s] Link Training Passed at Link Rate = %d, Lane count = %d",
> > +		      intel_connector->base.base.id,
> > +		      intel_connector->base.name,
> >  		      intel_dp->link_rate, intel_dp->lane_count);
> >  	return;
> >  
> >   failure_handling:
> > -	DRM_DEBUG_KMS("Link Training failed at link rate = %d, lane count = %d",
> > +	DRM_DEBUG_KMS("[CONNECTOR:%d:%s] Link Training failed at link rate = %d, lane count = %d",
> > +		      intel_connector->base.base.id,
> > +		      intel_connector->base.name,
> >  		      intel_dp->link_rate, intel_dp->lane_count);
> >  	if (!intel_dp_get_link_train_fallback_values(intel_dp,
> >  						     intel_dp->link_rate,
> > -- 
> > 2.13.2
> > 
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch

Re: [PATCH v2] drm/i915: Explicit the connector name for DP link training result

[Paul Kocialkowski]

On Tue, 2017-07-18 at 12:20 -0700, Manasi Navare wrote:
> On Tue, Jul 18, 2017 at 05:25:36PM +0300, Paul Kocialkowski wrote:
> > This adds the connector name when printing a debug message about the
> > DP
> > link training result. It is useful to figure out what connector is
> > failing when multiple DP connectors are used.
> > 
> 
> Thanks for the patch, this does make sense during the link training
> failure debugging to know the connector name.
> While at it feel free to change "Failed", "Link Rate, Lane Count", to
> upper case
> in the failure_handling case to be consistent with the pass case.

Thanks for the review!

Now that the patch was merged, do you feel like I should make a follow-
up patch to fix consistency in the upper case use or is it enough of a
detail that we can just forget about it?

> Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
> 
> Manasi
> 
> > Signed-off-by: Paul Kocialkowski <paul.kocialkowski@linux.intel.com>
> > ---
> >  drivers/gpu/drm/i915/intel_dp_link_training.c | 8 ++++++--
> >  1 file changed, 6 insertions(+), 2 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/i915/intel_dp_link_training.c
> > b/drivers/gpu/drm/i915/intel_dp_link_training.c
> > index b79c1c0e404c..05907fa8a553 100644
> > --- a/drivers/gpu/drm/i915/intel_dp_link_training.c
> > +++ b/drivers/gpu/drm/i915/intel_dp_link_training.c
> > @@ -321,12 +321,16 @@ intel_dp_start_link_train(struct intel_dp
> > *intel_dp)
> >  	if (!intel_dp_link_training_channel_equalization(intel_dp))
> >  		goto failure_handling;
> >  
> > -	DRM_DEBUG_KMS("Link Training Passed at Link Rate = %d, Lane
> > count = %d",
> > +	DRM_DEBUG_KMS("[CONNECTOR:%d:%s] Link Training Passed at
> > Link Rate = %d, Lane count = %d",
> > +		      intel_connector->base.base.id,
> > +		      intel_connector->base.name,
> >  		      intel_dp->link_rate, intel_dp->lane_count);
> >  	return;
> >  
> >   failure_handling:
> > -	DRM_DEBUG_KMS("Link Training failed at link rate = %d, lane
> > count = %d",
> > +	DRM_DEBUG_KMS("[CONNECTOR:%d:%s] Link Training failed at
> > link rate = %d, lane count = %d",
> > +		      intel_connector->base.base.id,
> > +		      intel_connector->base.name,
> >  		      intel_dp->link_rate, intel_dp->lane_count);
> >  	if (!intel_dp_get_link_train_fallback_values(intel_dp,
> >  						     intel_dp-
> > >link_rate,
> > -- 
> > 2.13.2
> > 
-- 
Paul Kocialkowski <paul.kocialkowski@linux.intel.com>
Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo, Finland
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Re: [PATCH v2] drm/i915: Explicit the connector name for DP link training result

[Jani Nikula]

On Wed, 19 Jul 2017, Paul Kocialkowski <paul.kocialkowski@linux.intel.com> wrote:
> On Tue, 2017-07-18 at 12:20 -0700, Manasi Navare wrote:
>> On Tue, Jul 18, 2017 at 05:25:36PM +0300, Paul Kocialkowski wrote:
>> > This adds the connector name when printing a debug message about the
>> > DP
>> > link training result. It is useful to figure out what connector is
>> > failing when multiple DP connectors are used.
>> > 
>> 
>> Thanks for the patch, this does make sense during the link training
>> failure debugging to know the connector name.
>> While at it feel free to change "Failed", "Link Rate, Lane Count", to
>> upper case
>> in the failure_handling case to be consistent with the pass case.
>
> Thanks for the review!
>
> Now that the patch was merged, do you feel like I should make a follow-
> up patch to fix consistency in the upper case use or is it enough of a
> detail that we can just forget about it?

If it bothers you, send a patch, otherwise wait for it to bother someone
else enough to send a patch. ;)

But please avoid the overuse of all caps for regular words, or
capitalization except at the beginning of sentences. I'd go with
something like this all over the place:

"Link training failed, link rate %d, lane count %d\n"

But it hasn't bothered me enough to send a patch. ;)

BR,
Jani.



>
>> Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
>> 
>> Manasi
>> 
>> > Signed-off-by: Paul Kocialkowski <paul.kocialkowski@linux.intel.com>
>> > ---
>> >  drivers/gpu/drm/i915/intel_dp_link_training.c | 8 ++++++--
>> >  1 file changed, 6 insertions(+), 2 deletions(-)
>> > 
>> > diff --git a/drivers/gpu/drm/i915/intel_dp_link_training.c
>> > b/drivers/gpu/drm/i915/intel_dp_link_training.c
>> > index b79c1c0e404c..05907fa8a553 100644
>> > --- a/drivers/gpu/drm/i915/intel_dp_link_training.c
>> > +++ b/drivers/gpu/drm/i915/intel_dp_link_training.c
>> > @@ -321,12 +321,16 @@ intel_dp_start_link_train(struct intel_dp
>> > *intel_dp)
>> >  	if (!intel_dp_link_training_channel_equalization(intel_dp))
>> >  		goto failure_handling;
>> >  
>> > -	DRM_DEBUG_KMS("Link Training Passed at Link Rate = %d, Lane
>> > count = %d",
>> > +	DRM_DEBUG_KMS("[CONNECTOR:%d:%s] Link Training Passed at
>> > Link Rate = %d, Lane count = %d",
>> > +		      intel_connector->base.base.id,
>> > +		      intel_connector->base.name,
>> >  		      intel_dp->link_rate, intel_dp->lane_count);
>> >  	return;
>> >  
>> >   failure_handling:
>> > -	DRM_DEBUG_KMS("Link Training failed at link rate = %d, lane
>> > count = %d",
>> > +	DRM_DEBUG_KMS("[CONNECTOR:%d:%s] Link Training failed at
>> > link rate = %d, lane count = %d",
>> > +		      intel_connector->base.base.id,
>> > +		      intel_connector->base.name,
>> >  		      intel_dp->link_rate, intel_dp->lane_count);
>> >  	if (!intel_dp_get_link_train_fallback_values(intel_dp,
>> >  						     intel_dp-
>> > >link_rate,
>> > -- 
>> > 2.13.2
>> > 

-- 
Jani Nikula, Intel Open Source Technology Center
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