Re: [Intel-gfx] [PATCH 3/3] drm/i915/guc: revisit GuC loader message levels

[Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxxxxxxxx>]

On 11/07/16 19:01, Dave Gordon wrote:
> Some downgraded from DRM_ERROR() to DRM_WARN(), some eliminated,
> and a few upgraded from DRM_INFO() to DRM_NOTE() or DRM_WARN().
>
> Signed-off-by: Dave Gordon <david.s.gordon@xxxxxxxxx>
> ---
>   drivers/gpu/drm/i915/intel_guc_loader.c | 20 ++++++++++----------
>   1 file changed, 10 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_guc_loader.c b/drivers/gpu/drm/i915/intel_guc_loader.c
> index 605c696..fd032eb 100644
> --- a/drivers/gpu/drm/i915/intel_guc_loader.c
> +++ b/drivers/gpu/drm/i915/intel_guc_loader.c
> @@ -140,12 +140,14 @@ static u32 get_gttype(struct drm_i915_private *dev_priv)
>
>   static u32 get_core_family(struct drm_i915_private *dev_priv)
>   {
> -	switch (INTEL_INFO(dev_priv)->gen) {
> +	u32 gen = INTEL_GEN(dev_priv);
> +
> +	switch (gen) {
>   	case 9:
>   		return GFXCORE_FAMILY_GEN9;
>
>   	default:
> -		DRM_ERROR("GUC: unsupported core family\n");
> +		DRM_WARN("GEN%d does not support GuC operation\n", gen);
>   		return GFXCORE_FAMILY_UNKNOWN;
>   	}
>   }
> @@ -433,7 +435,7 @@ int intel_guc_setup(struct drm_device *dev)
>   		goto fail;
>   	} else if (*fw_path == '\0') {
>   		/* Device has a GuC but we don't know what f/w to load? */
> -		DRM_INFO("No GuC firmware known for this platform\n");
> +		DRM_WARN("No GuC firmware known for this platform\n");
>   		err = -ENODEV;
>   		goto fail;
>   	}
> @@ -471,10 +473,8 @@ int intel_guc_setup(struct drm_device *dev)
>   		 * that the state and timing are fairly predictable
>   		 */
>   		err = i915_reset_guc(dev_priv);
> -		if (err) {
> -			DRM_ERROR("GuC reset failed: %d\n", err);
> +		if (err)
>   			goto fail;
> -		}
>
>   		err = guc_ucode_xfer(dev_priv);
>   		if (!err)
> @@ -532,15 +532,15 @@ int intel_guc_setup(struct drm_device *dev)
>   	else if (err == 0)
>   		DRM_INFO("GuC firmware load skipped\n");
>   	else if (ret != -EIO)
> -		DRM_INFO("GuC firmware load failed: %d\n", err);
> +		DRM_NOTE("GuC firmware load failed: %d\n", err);
>   	else
> -		DRM_ERROR("GuC firmware load failed: %d\n", err);
> +		DRM_WARN("GuC firmware load failed: %d\n", err);
>
>   	if (i915.enable_guc_submission) {
>   		if (fw_path == NULL)
>   			DRM_INFO("GuC submission without firmware not supported\n");
>   		if (ret == 0)
> -			DRM_INFO("Falling back from GuC submission to execlist mode\n");
> +			DRM_NOTE("Falling back from GuC submission to execlist mode\n");
>   		else
>   			DRM_ERROR("GuC init failed: %d\n", ret);
>   	}
> @@ -656,7 +656,7 @@ static void guc_fw_fetch(struct drm_device *dev, struct intel_guc_fw *guc_fw)
>   fail:
>   	DRM_DEBUG_DRIVER("GuC fw fetch status FAIL; err %d, fw %p, obj %p\n",
>   		err, fw, guc_fw->guc_fw_obj);
> -	DRM_ERROR("Failed to fetch GuC firmware from %s (error %d)\n",
> +	DRM_WARN("Failed to fetch GuC firmware from %s (error %d)\n",
>   		  guc_fw->guc_fw_path, err);
>
>   	mutex_lock(&dev->struct_mutex);

R-b if you also change all the other DRM_ERRORs in guc_fw_fetch to 
DRM_DEBUG_DRIVER and merge this last two log lines (DRM_DEBUG_DRIVER + 
DRM_WARN) to one. :)

Regards,

Tvrtko

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