Re: [PATCH] drm/i915: remove noisy logs in intel_dp_dsc_get_output_bpp()

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On Tue, 07 Jun 2022, Luca Coelho <luca@xxxxxxxxx> wrote:
> From: Luca Coelho <luciano.coelho@xxxxxxxxx>
>
> The intel_dp_dsc_get_output_bpp() function outputs two lines of
> unconditional logs, which was okay when it was called only once.  But
> now, we also call this function from intel_dp_mode_valid(), which is
> in turn called for every mode we need to validate.  This causes a lot
> of useless noise.
>
> Remove the unconditional prints to avoid spamming the logs.  Also
> remove one more print that is not unconditional, but is related.
>
> Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx>

Some of these might be useful on the compute config path, but meh.

Reviewed-by: Jani Nikula <jani.nikula@xxxxxxxxx>

> ---
>  drivers/gpu/drm/i915/display/intel_dp.c | 5 -----
>  1 file changed, 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
> index b8e2d3cd4d68..e198c6d7e3b5 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> @@ -658,7 +658,6 @@ static u16 intel_dp_dsc_get_output_bpp(struct drm_i915_private *i915,
>  	 */
>  	bits_per_pixel = (link_clock * lane_count * 8) /
>  			 intel_dp_mode_to_fec_clock(mode_clock);
> -	drm_dbg_kms(&i915->drm, "Max link bpp: %u\n", bits_per_pixel);
>  
>  	/* Small Joiner Check: output bpp <= joiner RAM (bits) / Horiz. width */
>  	max_bpp_small_joiner_ram = small_joiner_ram_size_bits(i915) /
> @@ -667,9 +666,6 @@ static u16 intel_dp_dsc_get_output_bpp(struct drm_i915_private *i915,
>  	if (bigjoiner)
>  		max_bpp_small_joiner_ram *= 2;
>  
> -	drm_dbg_kms(&i915->drm, "Max small joiner bpp: %u\n",
> -		    max_bpp_small_joiner_ram);
> -
>  	/*
>  	 * Greatest allowed DSC BPP = MIN (output BPP from available Link BW
>  	 * check, output bpp from small joiner RAM check)
> @@ -681,7 +677,6 @@ static u16 intel_dp_dsc_get_output_bpp(struct drm_i915_private *i915,
>  			i915->max_cdclk_freq * 48 /
>  			intel_dp_mode_to_fec_clock(mode_clock);
>  
> -		drm_dbg_kms(&i915->drm, "Max big joiner bpp: %u\n", max_bpp_bigjoiner);
>  		bits_per_pixel = min(bits_per_pixel, max_bpp_bigjoiner);
>  	}

-- 
Jani Nikula, Intel Open Source Graphics Center



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