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From: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
To: Matt Roper <matthew.d.roper@intel.com>
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH 4/5] drm/i915: Provide more information on DP AUX failures
Date: Mon, 28 Oct 2019 18:43:12 +0200	[thread overview]
Message-ID: <20191028164312.GQ1208@intel.com> (raw)
In-Reply-To: <20191025230623.27829-5-matthew.d.roper@intel.com>

On Fri, Oct 25, 2019 at 04:06:22PM -0700, Matt Roper wrote:
> We're seeing some failures where an aux transaction still shows as
> 'busy' well after the timeout limit that the hardware is supposed to
> enforce.  Improve the error message so that we can see exactly which aux
> channel this error happened on and what the status bits were during this
> case that isn't supposed to happen.

Pretty sure I have a patch somewhere that adds the aux name
to all the messages. I should probably dig that up and post it.

> 
> Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_dp.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
> index 65bab46f7b43..2b4915b5cf52 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> @@ -1190,7 +1190,8 @@ intel_dp_aux_wait_done(struct intel_dp *intel_dp)
>  	trace_i915_reg_rw(false, ch_ctl, status, sizeof(status), true);
>  
>  	if (!done)
> -		DRM_ERROR("dp aux hw did not signal timeout!\n");
> +		DRM_ERROR("%s did not complete or timeout within 10ms (status 0x%08x)\n",
> +			  intel_dp->aux.name ?: "AUX", status);
>  #undef C
>  
>  	return status;
> -- 
> 2.21.0
> 
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx

-- 
Ville Syrjälä
Intel
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

WARNING: multiple messages have this Message-ID (diff)
From: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
To: Matt Roper <matthew.d.roper@intel.com>
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: [Intel-gfx] [PATCH 4/5] drm/i915: Provide more information on DP AUX failures
Date: Mon, 28 Oct 2019 18:43:12 +0200	[thread overview]
Message-ID: <20191028164312.GQ1208@intel.com> (raw)
Message-ID: <20191028164312.25O9aC0URTw_EYJ-3W_UVJwqqgdXBKB4Oug8CDEhZxw@z> (raw)
In-Reply-To: <20191025230623.27829-5-matthew.d.roper@intel.com>

On Fri, Oct 25, 2019 at 04:06:22PM -0700, Matt Roper wrote:
> We're seeing some failures where an aux transaction still shows as
> 'busy' well after the timeout limit that the hardware is supposed to
> enforce.  Improve the error message so that we can see exactly which aux
> channel this error happened on and what the status bits were during this
> case that isn't supposed to happen.

Pretty sure I have a patch somewhere that adds the aux name
to all the messages. I should probably dig that up and post it.

> 
> Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_dp.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
> index 65bab46f7b43..2b4915b5cf52 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> @@ -1190,7 +1190,8 @@ intel_dp_aux_wait_done(struct intel_dp *intel_dp)
>  	trace_i915_reg_rw(false, ch_ctl, status, sizeof(status), true);
>  
>  	if (!done)
> -		DRM_ERROR("dp aux hw did not signal timeout!\n");
> +		DRM_ERROR("%s did not complete or timeout within 10ms (status 0x%08x)\n",
> +			  intel_dp->aux.name ?: "AUX", status);
>  #undef C
>  
>  	return status;
> -- 
> 2.21.0
> 
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx

-- 
Ville Syrjälä
Intel
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

  parent reply	other threads:[~2019-10-28 16:43 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-25 23:06 [PATCH 0/5] DP AUX updates Matt Roper
2019-10-25 23:06 ` [Intel-gfx] " Matt Roper
2019-10-25 23:06 ` [PATCH 1/5] drm/i915/tgl: Handle AUX interrupts for TC ports Matt Roper
2019-10-25 23:06   ` [Intel-gfx] " Matt Roper
2019-10-25 23:11   ` Lucas De Marchi
2019-10-25 23:11     ` [Intel-gfx] " Lucas De Marchi
2019-10-25 23:06 ` [PATCH 2/5] drm/i915: Drop unused AUX register offsets Matt Roper
2019-10-25 23:06   ` [Intel-gfx] " Matt Roper
2019-10-25 23:11   ` Lucas De Marchi
2019-10-25 23:11     ` [Intel-gfx] " Lucas De Marchi
2019-10-26  5:12   ` Matt Roper
2019-10-26  5:12     ` [Intel-gfx] " Matt Roper
2019-10-25 23:06 ` [PATCH 3/5] drm/i915: Add missing AUX channel H & I support Matt Roper
2019-10-25 23:06   ` [Intel-gfx] " Matt Roper
2019-10-25 23:13   ` Lucas De Marchi
2019-10-25 23:13     ` [Intel-gfx] " Lucas De Marchi
2019-10-28 14:57     ` Matt Roper
2019-10-28 14:57       ` [Intel-gfx] " Matt Roper
2019-10-29 17:59       ` Lucas De Marchi
2019-10-29 17:59         ` [Intel-gfx] " Lucas De Marchi
2019-10-25 23:06 ` [PATCH 4/5] drm/i915: Provide more information on DP AUX failures Matt Roper
2019-10-25 23:06   ` [Intel-gfx] " Matt Roper
2019-10-25 23:19   ` Lucas De Marchi
2019-10-25 23:19     ` [Intel-gfx] " Lucas De Marchi
2019-10-25 23:25     ` Matt Roper
2019-10-25 23:25       ` [Intel-gfx] " Matt Roper
2019-10-25 23:32       ` Lucas De Marchi
2019-10-25 23:32         ` [Intel-gfx] " Lucas De Marchi
2019-10-29 17:31     ` [PATCH v2 " Matt Roper
2019-10-29 17:31       ` [Intel-gfx] " Matt Roper
2019-10-29 19:33       ` Lucas De Marchi
2019-10-29 19:33         ` [Intel-gfx] " Lucas De Marchi
2019-10-28 16:43   ` Ville Syrjälä [this message]
2019-10-28 16:43     ` [Intel-gfx] [PATCH " Ville Syrjälä
2019-10-25 23:06 ` [PATCH 5/5] drm/i915/tgl: Add AUX B & C to DC_OFF_POWER_DOMAINS Matt Roper
2019-10-25 23:06   ` [Intel-gfx] " Matt Roper
2019-10-25 23:24   ` Lucas De Marchi
2019-10-25 23:24     ` [Intel-gfx] " Lucas De Marchi
2019-10-26  8:57   ` Imre Deak
2019-10-26  8:57     ` [Intel-gfx] " Imre Deak
2019-10-26  1:09 ` ✗ Fi.CI.BUILD: failure for DP AUX updates Patchwork
2019-10-26  1:09   ` [Intel-gfx] " Patchwork
2019-10-26  5:37 ` ✗ Fi.CI.CHECKPATCH: warning for DP AUX updates (rev2) Patchwork
2019-10-26  5:37   ` [Intel-gfx] " Patchwork
2019-10-26  5:57 ` ✗ Fi.CI.BAT: failure " Patchwork
2019-10-26  5:57   ` [Intel-gfx] " Patchwork
2019-10-26  6:26 ` ✗ Fi.CI.CHECKPATCH: warning for DP AUX updates (rev3) Patchwork
2019-10-26  6:26   ` [Intel-gfx] " Patchwork
2019-10-26  6:47 ` ✓ Fi.CI.BAT: success " Patchwork
2019-10-26  6:47   ` [Intel-gfx] " Patchwork
2019-10-28  1:02 ` ✓ Fi.CI.IGT: " Patchwork
2019-10-28  1:02   ` [Intel-gfx] " Patchwork
2019-10-29 17:58   ` Matt Roper
2019-10-29 17:58     ` [Intel-gfx] " Matt Roper
2019-10-29 19:56     ` Matt Roper
2019-10-29 19:56       ` [Intel-gfx] " Matt Roper

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