Re: [PATCH 4/4] drm/i915/huc: Don't fail the probe if HuC init fails

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On Tue, Apr 26, 2022 at 05:26:17PM -0700, Daniele Ceraolo Spurio wrote:
> The previous patch introduced new failure cases in the HuC init flow
> that can be hit by simply changing the config, so we want to avoid
> failing the probe in those scenarios. HuC load failure is already
> considered a non-fatal error and we have a way to report to userspace
> if the HuC is not available via a dedicated getparam, so no changes
> in expectation there.
> The error message in the HuC init code has also been lowered to info to
> avoid throwing error message for an expected behavior.
> 
> Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@xxxxxxxxx>

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>

> ---
>  drivers/gpu/drm/i915/gt/uc/intel_huc.c |  2 +-
>  drivers/gpu/drm/i915/gt/uc/intel_uc.c  | 11 ++---------
>  2 files changed, 3 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_huc.c b/drivers/gpu/drm/i915/gt/uc/intel_huc.c
> index 76a7df7f136fc..3d2e7a6d7c1b7 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_huc.c
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_huc.c
> @@ -113,7 +113,7 @@ int intel_huc_init(struct intel_huc *huc)
>  	return 0;
>  
>  out:
> -	i915_probe_error(i915, "failed with %d\n", err);
> +	drm_info(&i915->drm, "HuC init failed with %d\n", err);
>  	return err;
>  }
>  
> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc.c b/drivers/gpu/drm/i915/gt/uc/intel_uc.c
> index 0dce94f896a8c..ecf149c5fdb02 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_uc.c
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_uc.c
> @@ -323,17 +323,10 @@ static int __uc_init(struct intel_uc *uc)
>  	if (ret)
>  		return ret;
>  
> -	if (intel_uc_uses_huc(uc)) {
> -		ret = intel_huc_init(huc);
> -		if (ret)
> -			goto out_guc;
> -	}
> +	if (intel_uc_uses_huc(uc))
> +		intel_huc_init(huc);
>  
>  	return 0;
> -
> -out_guc:
> -	intel_guc_fini(guc);
> -	return ret;
>  }
>  
>  static void __uc_fini(struct intel_uc *uc)
> -- 
> 2.25.1
> 



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