[Intel-gfx] [PATCH] drm/i915/guc: Dump the GuC stage descriptor pool in debugfs

[Joonas Lahtinen]

On pe, 2017-05-05 at 14:34 +0000, Oscar Mateo wrote:
> We are missing pieces of information that could be useful for GuC
> debugging.
> 
> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio at intel.com>
> Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
> Signed-off-by: Oscar Mateo <oscar.mateo at intel.com>
> ---
>  drivers/gpu/drm/i915/i915_debugfs.c | 61 +++++++++++++++++++++++++++++++++++++
>  1 file changed, 61 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
> index 870c470..a05a67d 100644
> --- a/drivers/gpu/drm/i915/i915_debugfs.c
> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> @@ -2540,6 +2540,66 @@ static int i915_guc_info(struct seq_file *m, void *data)
> >  	return 0;
>  }
>  
> +static int i915_guc_stage_pool(struct seq_file *m, void *data)
> +{
> +	struct drm_i915_private *dev_priv = node_to_i915(m->private);
> +	const struct intel_guc *guc = &dev_priv->guc;
> +	struct guc_stage_desc *desc = guc->stage_desc_pool_vaddr;
> +	struct i915_guc_client *client = guc->execbuf_client;
> +	unsigned int tmp;
> +	int index;
> +
> +	if (!client) {
> +		seq_printf(m, "GuC submission %s\n",
> +			   HAS_GUC(dev_priv) ?
> +			   "disabled" :
> +			   "not supported");
> +		return 0;
> +	}

De-dupe above fragment into a separate static function;

	if (!check_guc(dev_priv))
		return 0;

It could be applied to the other GuC functions, too.

Then this is;

Reviewed-by: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>

Regards, Joonas
-- 
Joonas Lahtinen
Open Source Technology Center
Intel Corporation