drm/i915: Show PCI power state under debugfs/i915_runtime_pm_status

As the current PCI power state is an essential feature of runtime pm,
include it in the debugfs/i915_runtime_pm_status.

v2: Use pci_power_name()

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Imre Deak <imre.deak@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1459689261-7920-2-git-send-email-chris@chris-wilson.co.uk

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 6b384d7738f18dc9fe151b475c3306ffa27b7581..0b25228c202e2ff593257d9fdabc72a0a56c8040 100644 (file)
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2694,10 +2694,8 @@ static int i915_runtime_pm_status(struct seq_file *m, void *unused)
        struct drm_device *dev = node->minor->dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
 
-       if (!HAS_RUNTIME_PM(dev)) {
-               seq_puts(m, "not supported\n");
-               return 0;
-       }
+       if (!HAS_RUNTIME_PM(dev_priv))
+               seq_puts(m, "Runtime power management not supported\n");
 
        seq_printf(m, "GPU idle: %s\n", yesno(!dev_priv->mm.busy));
        seq_printf(m, "IRQs disabled: %s\n",
@@ -2708,6 +2706,9 @@ static int i915_runtime_pm_status(struct seq_file *m, void *unused)
 #else
        seq_printf(m, "Device Power Management (CONFIG_PM) disabled\n");
 #endif
+       seq_printf(m, "PCI device power state: %s [%d]\n",
+                  pci_power_name(dev_priv->dev->pdev->current_state),
+                  dev_priv->dev->pdev->current_state);
 
        return 0;
 }