[Intel-gfx] [PATCH v3] i915/drrs/debugfs: psr status info addition

[Rodrigo Vivi]

On Mon, Nov 20, 2017 at 04:23:47AM +0000, Ramalingam C wrote:
> From: "C, Ramalingam" <ramalingam.c at intel.com>
> 
> Existing debugfs entry i915_drrs_status is updated with whether PSR
> is the cause for DRRS disabled state.
> 
> [v2]: Dropped the module parameter details as ctl moved from module
>       parameter to debugfs. [Rodrigo]
> 
> [v3]: Crtc ID information is dropped as there is no immediate usecase.
>       [Rodrigo].
> 
> Signed-off-by: C, Ramalingam <ramalingam.c at intel.com>

Reviewed-by: Rodrigo Vivi <rodrigo.vivi at intel.com>

> ---
>  drivers/gpu/drm/i915/i915_debugfs.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
> index 0c1501fe4c9f..ea36d4e4d881 100644
> --- a/drivers/gpu/drm/i915/i915_debugfs.c
> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> @@ -3567,7 +3567,10 @@ static void drrs_status_per_crtc(struct seq_file *m,
>  
>  		/* disable_drrs() will make drrs->dp NULL */
>  		if (!drrs->dp) {
> -			seq_puts(m, "Idleness DRRS: Disabled");
> +			seq_puts(m, "Idleness DRRS: Disabled\n");
> +			if (dev_priv->psr.enabled)
> +				seq_puts(m,
> +				"\tAs PSR is enabled, DRRS is not enabled\n");
>  			mutex_unlock(&drrs->mutex);
>  			return;
>  		}
> -- 
> 2.7.4
>