i915_sseu_status() was missing intel_runtime_pm_{get,put}, meaning that in some cases access to HW would be attempted while the device is suspended.
Testcase: igt/pm_rpm/debugfs-read Signed-off-by: David Weinehall <david.weineh...@linux.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 e4f2c55d9697..694b0d394c7b 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -5290,11 +5290,14 @@ 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) return -ENODEV; + intel_runtime_pm_get(dev_priv); + seq_puts(m, "SSEU Device Info\n"); seq_printf(m, " Available Slice Total: %u\n", INTEL_INFO(dev)->slice_total); @@ -5333,6 +5336,8 @@ static int i915_sseu_status(struct seq_file *m, void *unused) seq_printf(m, " Enabled EU Per Subslice: %u\n", stat.eu_per_subslice); + intel_runtime_pm_put(dev_priv); + return 0; } -- 2.8.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx