drm/xe/guc: Make creation of SLPC debugfs files conditional

Browse source

Platforms that do not support SLPC are exempted from the GuC PC support.
The GuC PC does not get initialized, and neither do its BOs get created.

This causes a problem because the GuC PC debugfs file is still being
created. Whenever the file is attempted to read, it causes a NULL
pointer dereference on the supposed BO of the GuC PC.

So, make the creation of SLPC debugfs files conditional to when SLPC
features are supported.

Fixes: aaab5404b1 ("drm/xe: Introduce GuC PC debugfs")
Suggested-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
Reviewed-by: Stuart Summers <stuart.summers@intel.com>
Signed-off-by: Aradhya Bhatia <aradhya.bhatia@intel.com>
Link: https://lore.kernel.org/r/20250516141902.5614-1-aradhya.bhatia@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>

...

This commit is contained in:

Aradhya Bhatia 2025-05-16 14:19:02 +00:00 • committed by Matt Roper

parent a383cf218e

commit 17486cf3df

1 changed files with 14 additions and 3 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

17

drivers/gpu/drm/xe/xe_guc_debugfs.c

View file