[Intel-gfx] [PATCH 55/66] drm/i915: Add a debugfs file for the shared dpll state

[Damien Lespiau]

On Thu, Apr 24, 2014 at 11:55:31PM +0200, Daniel Vetter wrote:
> Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>

The list of CRTCs using those shared PLLs would also be useful in the
mix.

Reviewed-by: Damien Lespiau <damien.lespiau at intel.com>

-- 
Damien

> ---
>  drivers/gpu/drm/i915/i915_debugfs.c | 26 ++++++++++++++++++++++++++
>  1 file changed, 26 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
> index 1e83ae45041c..c99951fdc572 100644
> --- a/drivers/gpu/drm/i915/i915_debugfs.c
> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> @@ -2370,6 +2370,31 @@ static int i915_display_info(struct seq_file *m, void *unused)
>  	return 0;
>  }
>  
> +static int i915_shared_dplls_info(struct seq_file *m, void *unused)
> +{
> +	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;
> +	int i;
> +
> +	drm_modeset_lock_all(dev);
> +	for (i = 0; i < dev_priv->num_shared_dpll; i++) {
> +		struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
> +
> +		seq_printf(m, "DPLL%i: %s, id: %i\n", i, pll->name, pll->id);
> +		seq_printf(m, " refcount: %i, active: %i, on: %s\n", pll->refcount,
> +			   pll->active, yesno(pll->on));
> +		seq_printf(m, " tracked hardware state:\n");
> +		seq_printf(m, " dpll:    0x%08x\n", pll->hw_state.dpll);
> +		seq_printf(m, " dpll_md: 0x%08x\n", pll->hw_state.dpll_md);
> +		seq_printf(m, " fp0:     0x%08x\n", pll->hw_state.fp0);
> +		seq_printf(m, " fp1:     0x%08x\n", pll->hw_state.fp1);
> +	}
> +	drm_modeset_unlock_all(dev);
> +
> +	return 0;
> +}
> +
>  struct pipe_crc_info {
>  	const char *name;
>  	struct drm_device *dev;
> @@ -3811,6 +3836,7 @@ static const struct drm_info_list i915_debugfs_list[] = {
>  	{"i915_pc8_status", i915_pc8_status, 0},
>  	{"i915_power_domain_info", i915_power_domain_info, 0},
>  	{"i915_display_info", i915_display_info, 0},
> +	{"i915_shared_dplls_info", i915_shared_dplls_info, 0},
>  };
>  #define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list)
>  
> -- 
> 1.8.1.4
> 
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