1 files changed, 19 insertions, 0 deletions
diff --git a/arch/alpha/include/asm/percpu.h b/arch/alpha/include/asm/percpu.h
new file mode 100644
index 000000000..6923249f2
--- /dev/null
+++ b/arch/alpha/include/asm/percpu.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_PERCPU_H
+#define __ALPHA_PERCPU_H
+
+/*
+ * To calculate addresses of locally defined variables, GCC uses
+ * 32-bit displacement from the GP. Which doesn't work for per cpu
+ * variables in modules, as an offset to the kernel per cpu area is
+ * way above 4G.
+ *
+ * Always use weak definitions for percpu variables in modules.
+ */
+#if defined(MODULE) && defined(CONFIG_SMP)
+#define ARCH_NEEDS_WEAK_PER_CPU
+#endif
+
+#include <asm-generic/percpu.h>
+
+#endif /* __ALPHA_PERCPU_H */