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| author | David Weinehall <david.weinehall@linux.intel.com> | 2016-08-01 14:33:27 (GMT) |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2016-08-01 14:52:54 (GMT) |
| commit | 238010ed6cc8d3b5c6b146ab813838c6a6992a7b (patch) | |
| tree | 6c6cf50daface13d986ab5be0399e5aba2aed703 /drivers/gpu/drm/i915/i915_debugfs.c | |
| parent | 6ce213575cf37c50667850b4372272b4f1660b51 (diff) | |
| download | linux-238010ed6cc8d3b5c6b146ab813838c6a6992a7b.tar.xz | |
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: David 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: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_debugfs.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 9aa62c5..531ca02 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -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", |