When playing around with debugfs and a HSW machine I noticed that we
were displaying some garbled value in i915_ddb_info. This debugfs file
is only meaningful for gen9+, so don't display anything on earlier
platforms.
Signed-off-by: Damien Lespiau <damien.lesp...@intel.com>
---
drivers/gpu/drm/i915/i915_debugfs.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c
b/drivers/gpu/drm/i915/i915_debugfs.c
index 6c16939..d0e445e 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2743,6 +2743,9 @@ static int i915_ddb_info(struct seq_file *m, void *unused)
enum pipe pipe;
int plane;
+ if (INTEL_INFO(dev)->gen < 9)
+ return 0;
+
drm_modeset_lock_all(dev);
ddb = &dev_priv->wm.skl_hw.ddb;
--
1.8.3.1
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