On Wed, Oct 21, 2015 at 06:41:46PM +0300, Mika Kuoppala wrote:
> From: Damien Lespiau <[email protected]>
> 
> Create a new debufs file for it, we'll have a few more things to add
> there.
> 
> v2: Fix checkpatch warning about static const array
> 
> Signed-off-by: Damien Lespiau <[email protected]> (v1)
> Signed-off-by: Mika Kuoppala <[email protected]>
> ---
>  drivers/gpu/drm/i915/i915_debugfs.c | 22 ++++++++++++++++++++++
>  1 file changed, 22 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c 
> b/drivers/gpu/drm/i915/i915_debugfs.c
> index a3b22bd..ceae425 100644
> --- a/drivers/gpu/drm/i915/i915_debugfs.c
> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> @@ -2777,6 +2777,27 @@ static int i915_power_domain_info(struct seq_file *m, 
> void *unused)
>       return 0;
>  }
>  
> +static int i915_dmc_info(struct seq_file *m, void *unused)
> +{
> +     struct drm_info_node *node = m->private;
> +     struct drm_device *dev = node->minor->dev;
> +     struct drm_i915_private *dev_priv = dev->dev_private;
> +     enum csr_state csr_state;
> +     static const char * const csr_state_str[] = {
> +             "unknown", "loaded", "error"
> +     };

I'd use named initializers here. With that
Reviewed-by: Ville Syrjälä <[email protected]>

> +
> +     if (!HAS_CSR(dev)) {
> +             seq_puts(m, "not supported\n");
> +             return 0;
> +     }
> +
> +     csr_state = intel_csr_load_status_get(dev_priv);

A side note: intel_csr_load_status_get() seems pretty useless. The lock
is protecting a single variable read.

> +     seq_printf(m, "status: %s\n", csr_state_str[csr_state]);
> +
> +     return 0;
> +}
> +
>  static void intel_seq_print_mode(struct seq_file *m, int tabs,
>                                struct drm_display_mode *mode)
>  {
> @@ -5236,6 +5257,7 @@ static const struct drm_info_list i915_debugfs_list[] = 
> {
>       {"i915_energy_uJ", i915_energy_uJ, 0},
>       {"i915_runtime_pm_status", i915_runtime_pm_status, 0},
>       {"i915_power_domain_info", i915_power_domain_info, 0},
> +     {"i915_dmc_info", i915_dmc_info, 0},
>       {"i915_display_info", i915_display_info, 0},
>       {"i915_semaphore_status", i915_semaphore_status, 0},
>       {"i915_shared_dplls_info", i915_shared_dplls_info, 0},
> -- 
> 2.1.4
> 
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-- 
Ville Syrjälä
Intel OTC
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