[Intel-gfx] [PATCH 6/6] drm/i915: Get runtime pm ref on i915_sseu_status

[Mika Kuoppala]

Getting subslice status does access hw so it needs a pm ref.

Signed-off-by: Mika Kuoppala <mika.kuoppala at intel.com>
---
 drivers/gpu/drm/i915/i915_debugfs.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 5770307..c9d11ba 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -5206,6 +5206,7 @@ static int i915_sseu_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;
 	struct sseu_dev_status stat;
 
 	if (INTEL_INFO(dev)->gen < 8)
@@ -5231,6 +5232,8 @@ static int i915_sseu_status(struct seq_file *m, void *unused)
 
 	seq_puts(m, "SSEU Device Status\n");
 	memset(&stat, 0, sizeof(stat));
+
+	intel_runtime_pm_get(dev_priv);
 	if (IS_CHERRYVIEW(dev)) {
 		cherryview_sseu_device_status(dev, &stat);
 	} else if (IS_BROADWELL(dev)) {
@@ -5238,6 +5241,8 @@ static int i915_sseu_status(struct seq_file *m, void *unused)
 	} else if (INTEL_INFO(dev)->gen >= 9) {
 		gen9_sseu_device_status(dev, &stat);
 	}
+	intel_runtime_pm_put(dev_priv);
+
 	seq_printf(m, "  Enabled Slice Total: %u\n",
 		   stat.slice_total);
 	seq_printf(m, "  Enabled Subslice Total: %u\n",
-- 
2.5.0