drm/i915: add i915_pc8_status debugfs file

Make it print the value of the variables on the PC8 struct.

v2: Update to recent renames and add the new fields.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 236d97e..39df30e 100644 (file)
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1788,6 +1788,31 @@ static int i915_energy_uJ(struct seq_file *m, void *data)
        power *= units;
 
        seq_printf(m, "%llu", (long long unsigned)power);
+
+       return 0;
+}
+
+static int i915_pc8_status(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;
+
+       if (!IS_HASWELL(dev)) {
+               seq_puts(m, "not supported\n");
+               return 0;
+       }
+
+       mutex_lock(&dev_priv->pc8.lock);
+       seq_printf(m, "Requirements met: %s\n",
+                  yesno(dev_priv->pc8.requirements_met));
+       seq_printf(m, "GPU idle: %s\n", yesno(dev_priv->pc8.gpu_idle));
+       seq_printf(m, "Disable count: %d\n", dev_priv->pc8.disable_count);
+       seq_printf(m, "IRQs disabled: %s\n",
+                  yesno(dev_priv->pc8.irqs_disabled));
+       seq_printf(m, "Enabled: %s\n", yesno(dev_priv->pc8.enabled));
+       mutex_unlock(&dev_priv->pc8.lock);
+
        return 0;
 }
 
@@ -2231,6 +2256,7 @@ static struct drm_info_list i915_debugfs_list[] = {
        {"i915_llc", i915_llc, 0},
        {"i915_edp_psr_status", i915_edp_psr_status, 0},
        {"i915_energy_uJ", i915_energy_uJ, 0},
+       {"i915_pc8_status", i915_pc8_status, 0},
 };
 #define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list)