1 files changed, 26 insertions, 0 deletions
diff --git a/arch/xtensa/include/asm/system.h b/arch/xtensa/include/asm/system.h
new file mode 100644
index 0000000..a241568
--- /dev/null
+++ b/arch/xtensa/include/asm/system.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2016 Cadence Design Systems Inc.
+ */
+
+#ifndef _XTENSA_SYSTEM_H
+#define _XTENSA_SYSTEM_H
+
+#include <asm/arch/core.h>
+
+#if XCHAL_HAVE_INTERRUPTS
+#define local_irq_save(flags) \
+	__asm__ __volatile__ ("rsil %0, %1" \
+			      : "=a"(flags) \
+			      : "I"(XCHAL_EXCM_LEVEL) \
+			      : "memory")
+#define local_irq_restore(flags) \
+	__asm__ __volatile__ ("wsr %0, ps\n\t" \
+			      "rsync" \
+			      :: "a"(flags) : "memory")
+#else
+#define local_irq_save(flags) ((void)(flags))
+#define local_irq_restore(flags) ((void)(flags))
+#endif
+
+#endif