Commit b45f20fa authored by Matthew Auld's avatar Matthew Auld Committed by Lucas De Marchi
Browse files

drm/xe/device: fix XE_MAX_TILES_PER_DEVICE check 



Here XE_MAX_TILES_PER_DEVICE is the gt array size, therefore the gt
index should always be less than.

v2 (Lucas):
  - Add fixes tag.

Fixes: dd08ebf6 ("drm/xe: Introduce a new DRM driver for Intel GPUs")
Signed-off-by: default avatarMatthew Auld <matthew.auld@intel.com>
Cc: Nirmoy Das <nirmoy.das@intel.com>
Reviewed-by: default avatarNirmoy Das <nirmoy.das@intel.com>
Acked-by: default avatarLucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: default avatarRodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240318180532.57522-6-matthew.auld@intel.com


(cherry picked from commit a96cd71e)
Signed-off-by: default avatarLucas De Marchi <lucas.demarchi@intel.com>
parent 23e1ee3a

drivers/gpu/drm/xe/xe_device.h

+1 −1
Original line number Diff line number Diff line
@@ -79,7 +79,7 @@ static inline struct xe_gt *xe_device_get_gt(struct xe_device *xe, u8 gt_id) 
	if (MEDIA_VER(xe) >= 13) {

		gt = xe_tile_get_gt(root_tile, gt_id);

	} else {

		if (drm_WARN_ON(&xe->drm, gt_id > XE_MAX_TILES_PER_DEVICE))

		if (drm_WARN_ON(&xe->drm, gt_id >= XE_MAX_TILES_PER_DEVICE))

			gt_id = 0;



		gt = xe->tiles[gt_id].primary_gt;