From a96cd71ec7be0790f9fc4039ad21be8d214b03a4 Mon Sep 17 00:00:00 2001
From: Matthew Auld <matthew.auld@intel.com>
Date: Mon, 18 Mar 2024 18:05:35 +0000
Subject: [PATCH] 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: dd08ebf6c352 ("drm/xe: Introduce a new DRM driver for Intel GPUs")
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Nirmoy Das <nirmoy.das@intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@intel.com>
Acked-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240318180532.57522-6-matthew.auld@intel.com
---
drivers/gpu/drm/xe/xe_device.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/xe/xe_device.h b/drivers/gpu/drm/xe/xe_device.h
index 5c254ec9c602e..d413bc2c6be5a 100644
--- a/drivers/gpu/drm/xe/xe_device.h
+++ b/drivers/gpu/drm/xe/xe_device.h
@@ -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;
--
2.30.2