[Intel-gfx] [PATCH 3/3] drm/i915: Add rc6vids to debugfs

[Jesse Barnes]

On Wed, 26 Sep 2012 10:34:02 -0700
Ben Widawsky <ben at bwidawsk.net> wrote:

> CC: Jesse Barnes <jbarnes at virtuousgeek.org>
> Signed-off-by: Ben Widawsky <ben at bwidawsk.net>
> ---
>  drivers/gpu/drm/i915/i915_debugfs.c | 9 ++++++++-
>  1 file changed, 8 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
> index 6647585..3c5710f 100644
> --- a/drivers/gpu/drm/i915/i915_debugfs.c
> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> @@ -1069,7 +1069,7 @@ static int gen6_drpc_info(struct seq_file *m)
>  	struct drm_info_node *node = (struct drm_info_node *) m->private;
>  	struct drm_device *dev = node->minor->dev;
>  	struct drm_i915_private *dev_priv = dev->dev_private;
> -	u32 rpmodectl1, gt_core_status, rcctl1;
> +	u32 rpmodectl1, gt_core_status, rcctl1, rc6vids = 0;
>  	unsigned forcewake_count;
>  	int count=0, ret;
>  
> @@ -1097,6 +1097,7 @@ static int gen6_drpc_info(struct seq_file *m)
>  
>  	rpmodectl1 = I915_READ(GEN6_RP_CONTROL);
>  	rcctl1 = I915_READ(GEN6_RC_CONTROL);
> +	sandybridge_pcode_read(dev_priv, GEN6_PCODE_READ_RC6VIDS, &rc6vids);
>  	mutex_unlock(&dev->struct_mutex);
>  
>  	seq_printf(m, "Video Turbo Mode: %s\n",
> @@ -1149,6 +1150,12 @@ static int gen6_drpc_info(struct seq_file *m)
>  	seq_printf(m, "RC6++ residency since boot: %u\n",
>  		   I915_READ(GEN6_GT_GFX_RC6pp));
>  
> +	seq_printf(m, "RC6   voltage: %dmV\n",
> +		   GEN6_DECODE_RC6_VID(((rc6vids >> 0) & 0xff)));
> +	seq_printf(m, "RC6+  voltage: %dmV\n",
> +		   GEN6_DECODE_RC6_VID(((rc6vids >> 8) & 0xff)));
> +	seq_printf(m, "RC6++ voltage: %dmV\n",
> +		   GEN6_DECODE_RC6_VID(((rc6vids >> 16) & 0xff)));
>  	return 0;
>  }
>  

Nice.

Reviewed-by: Jesse Barnes <jbarnes at virtuousgeek.org>

-- 
Jesse Barnes, Intel Open Source Technology Center