Re: [PATCH 02/13] drm/i915/dsb: Pimp debug/error prints

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> -----Original Message-----
> From: Intel-gfx <intel-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of Ville
> Syrjala
> Sent: Wednesday, January 18, 2023 10:00 PM
> To: intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> Subject:  [PATCH 02/13] drm/i915/dsb: Pimp debug/error prints
> 
> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> 
> Print the crtc/DSB id information to make it clear which DSB engine we're
> talking about.
> 
> Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>

LGTM.
Reviewed-by: Animesh Manna <animesh.manna@xxxxxxxxx>

> ---
>  drivers/gpu/drm/i915/display/intel_dsb.c | 12 ++++++++----
>  1 file changed, 8 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dsb.c
> b/drivers/gpu/drm/i915/display/intel_dsb.c
> index 96bc117fd6a0..f41146fc84d7 100644
> --- a/drivers/gpu/drm/i915/display/intel_dsb.c
> +++ b/drivers/gpu/drm/i915/display/intel_dsb.c
> @@ -88,7 +88,8 @@ static bool assert_dsb_has_room(struct intel_dsb *dsb)
> 
>  	/* each instruction is 2 dwords */
>  	return !drm_WARN(&i915->drm, dsb->free_pos > dsb->size - 2,
> -			 "DSB buffer overflow\n");
> +			 "[CRTC:%d:%s] DSB %d buffer overflow\n",
> +			 crtc->base.base.id, crtc->base.name, dsb->id);
>  }
> 
>  static bool is_dsb_busy(struct drm_i915_private *i915, enum pipe pipe, @@
> -232,7 +233,8 @@ void intel_dsb_commit(struct intel_dsb *dsb)
>  		return;
> 
>  	if (is_dsb_busy(dev_priv, pipe, dsb->id)) {
> -		drm_err(&dev_priv->drm, "DSB engine is busy.\n");
> +		drm_err(&dev_priv->drm, "[CRTC:%d:%s] DSB %d is busy\n",
> +			crtc->base.base.id, crtc->base.name, dsb->id);
>  		goto reset;
>  	}
> 
> @@ -250,7 +252,8 @@ void intel_dsb_commit(struct intel_dsb *dsb)
> 
>  	if (wait_for(!is_dsb_busy(dev_priv, pipe, dsb->id), 1))
>  		drm_err(&dev_priv->drm,
> -			"Timed out waiting for DSB workload
> completion.\n");
> +			"[CRTC:%d:%s] DSB %d timed out waiting for idle\n",
> +			crtc->base.base.id, crtc->base.name, dsb->id);
> 
>  reset:
>  	dsb->free_pos = 0;
> @@ -325,7 +328,8 @@ struct intel_dsb *intel_dsb_prepare(struct intel_crtc
> *crtc,
>  	kfree(dsb);
>  out:
>  	drm_info_once(&i915->drm,
> -		      "DSB queue setup failed, will fallback to MMIO for display
> HW programming\n");
> +		      "[CRTC:%d:%s] DSB %d queue setup failed, will fallback to
> MMIO for display HW programming\n",
> +		      crtc->base.base.id, crtc->base.name, DSB1);
> 
>  	return NULL;
>  }
> --
> 2.38.2





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