[Intel-gfx] [PATCH 9/10] drm/i915: Add debugfs entry for DRRS

[Chris Wilson]

On Sat, Jan 10, 2015 at 02:26:04AM +0530, Vandana Kannan wrote:
> Adding a debugfs entry to determine if DRRS is supported or not
> 
> Signed-off-by: Vandana Kannan <vandana.kannan at intel.com>
> ---
>  drivers/gpu/drm/i915/i915_debugfs.c | 18 ++++++++++++++++++
>  1 file changed, 18 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
> index e515aad..544b4c3 100644
> --- a/drivers/gpu/drm/i915/i915_debugfs.c
> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> @@ -2825,6 +2825,23 @@ static int i915_ddb_info(struct seq_file *m, void *unused)
>  	return 0;
>  }
>  
> +static int i915_drrs_status(struct seq_file *m, void *unused)
> +{
> +	struct drm_info_node *node = m->private;
> +	struct drm_device *dev = node->minor->dev;
> +	struct intel_crtc *crtc;
> +
> +	for_each_intel_crtc(dev, crtc) {
> +		if (crtc->active) {

Don't you want to know which CRTC this is? Would this not be better
extending display_info with the extra CRTC status?

> +			if (crtc->config.has_drrs)
> +				seq_puts(m, "DRRS enabled");
> +			else
> +				seq_puts(m, "DRRS disabled");
> +		}
> +	}
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre