Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 238010ed authored by David Weinehall's avatar David Weinehall Committed by Chris Wilson
Browse files

drm/i915/debugfs: Take runtime_pm ref for sseu 



When reading the SSEU statistics, we need to call
intel_runtime_pm_get() first, otherwise we might end up
triggering "Device suspended during HW access".

Signed-off-by: default avatarDavid Weinehall <david.weinehall@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1470062007-26996-1-git-send-email-david.weinehall@linux.intel.com


Reviewed-by: default avatarJoonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
parent 6ce21357

drivers/gpu/drm/i915/i915_debugfs.c

+8 −1
Original line number Diff line number Diff line
@@ -5238,7 +5238,8 @@ static void broadwell_sseu_device_status(struct drm_device *dev, 
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 = to_i915(node->minor->dev);

	struct drm_device *dev = &dev_priv->drm;

	struct sseu_dev_status stat;



	if (INTEL_INFO(dev)->gen < 8)
@@ -5268,6 +5269,9 @@ 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)) {
@@ -5275,6 +5279,9 @@ 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",