diff options
| author | Damien Lespiau <damien.lespiau@intel.com> | 2014-12-03 17:33:24 +0000 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-12-04 12:01:14 +0100 |
| commit | 2fcffe195ed3329082ce22f2118543871bfbbcf0 (patch) | |
| tree | a7714f6017aae2491b3cb4b80a5d904ff13ac67c /drivers/gpu/drm/i915/i915_debugfs.c | |
| parent | f763566992bb004a27d620c9ad90ec9a4dff34c3 (diff) | |
| download | lwn-2fcffe195ed3329082ce22f2118543871bfbbcf0.tar.gz lwn-2fcffe195ed3329082ce22f2118543871bfbbcf0.zip | |
drm/i915: Don't display nonsensical values in i915_ddb_info on gen < 9
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.lespiau@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_debugfs.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 6c169392f701..d0e445eca9ce 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; |