1 files changed, 61 insertions, 0 deletions
diff --git a/arch/loongarch/include/asm/bug.h b/arch/loongarch/include/asm/bug.h
new file mode 100644
index 000000000..d4ca3ba25
--- /dev/null
+++ b/arch/loongarch/include/asm/bug.h
@@ -0,0 +1,61 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_BUG_H
+#define __ASM_BUG_H
+
+#include <asm/break.h>
+#include <linux/stringify.h>
+
+#ifndef CONFIG_DEBUG_BUGVERBOSE
+#define _BUGVERBOSE_LOCATION(file, line)
+#else
+#define __BUGVERBOSE_LOCATION(file, line)			\
+		.pushsection .rodata.str, "aMS", @progbits, 1;	\
+	10002:	.string file;					\
+		.popsection;					\
+								\
+		.long 10002b - .;				\
+		.short line;
+#define _BUGVERBOSE_LOCATION(file, line) __BUGVERBOSE_LOCATION(file, line)
+#endif
+
+#ifndef CONFIG_GENERIC_BUG
+#define __BUG_ENTRY(flags)
+#else
+#define __BUG_ENTRY(flags) 					\
+		.pushsection __bug_table, "aw";			\
+		.align 2;					\
+	10000:	.long 10001f - .;				\
+		_BUGVERBOSE_LOCATION(__FILE__, __LINE__)	\
+		.short flags; 					\
+		.popsection;					\
+	10001:
+#endif
+
+#define ASM_BUG_FLAGS(flags)					\
+	__BUG_ENTRY(flags)					\
+	break		BRK_BUG
+
+#define ASM_BUG()	ASM_BUG_FLAGS(0)
+
+#define __BUG_FLAGS(flags)					\
+	asm_inline volatile (__stringify(ASM_BUG_FLAGS(flags)));
+
+#define __WARN_FLAGS(flags)					\
+do {								\
+	instrumentation_begin();				\
+	__BUG_FLAGS(BUGFLAG_WARNING|(flags));			\
+	instrumentation_end();					\
+} while (0)
+
+#define BUG()							\
+do {								\
+	instrumentation_begin();				\
+	__BUG_FLAGS(0);						\
+	unreachable();						\
+} while (0)
+
+#define HAVE_ARCH_BUG
+
+#include <asm-generic/bug.h>
+
+#endif /* __ASM_BUG_H */