drm/xe: Use a small negative initial seqno

Causes an early 32-bit wrap and may thus help CI catch wrapping errors
that may otherwise not show early enough.
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drivers/gpu/drm/xe/xe_hw_fence.h

@@ -8,7 +8,8 @@
 
 #include "xe_hw_fence_types.h"
 
-#define XE_FENCE_INITIAL_SEQNO 1
+/* Cause an early wrap to catch wrapping errors */
+#define XE_FENCE_INITIAL_SEQNO (-127)
 
 int xe_hw_fence_module_init(void);
 void xe_hw_fence_module_exit(void);