1 files changed, 55 insertions, 0 deletions

diff --git a/include/asm-ppc/bug.h b/include/asm-ppc/bug.h
new file mode 100644
index 000000000000..e99c6cb9d618
--- /dev/null
+++ b/include/asm-ppc/bug.h
@@ -0,0 +1,55 @@
+#ifndef _PPC_BUG_H
+#define _PPC_BUG_H
+
+struct bug_entry {
+        unsigned long   bug_addr;
+        int             line;
+        const char      *file;
+        const char      *function;
+};
+
+/*
+ * If this bit is set in the line number it means that the trap
+ * is for WARN_ON rather than BUG or BUG_ON.
+ */
+#define BUG_WARNING_TRAP        0x1000000
+
+#define BUG() do {                                                       \
+        __asm__ __volatile__(                                            \
+                "1:     twi 31,0,0\n"                                    \
+                ".section __bug_table,\"a\"\n\t"                         \
+                "       .long 1b,%0,%1,%2\n"                             \
+                ".previous"                                              \
+                : : "i" (__LINE__), "i" (__FILE__), "i" (__FUNCTION__)); \
+} while (0)
+
+#define BUG_ON(x) do {                                                  \
+        if (!__builtin_constant_p(x) || (x)) {                          \
+                __asm__ __volatile__(                                   \
+                        "1:     twnei %0,0\n"                           \
+                        ".section __bug_table,\"a\"\n\t"                \
+                        "       .long 1b,%1,%2,%3\n"                    \
+                        ".previous"                                     \
+                        : : "r" (x), "i" (__LINE__), "i" (__FILE__),    \
+                            "i" (__FUNCTION__));                        \
+        }                                                               \
+} while (0)
+
+#define WARN_ON(x) do {                                                 \
+        if (!__builtin_constant_p(x) || (x)) {                          \
+                __asm__ __volatile__(                                   \
+                        "1:     twnei %0,0\n"                           \
+                        ".section __bug_table,\"a\"\n\t"                \
+                        "       .long 1b,%1,%2,%3\n"                    \
+                        ".previous"                                     \
+                        : : "r" (x), "i" (__LINE__ + BUG_WARNING_TRAP), \
+                            "i" (__FILE__), "i" (__FUNCTION__));        \
+        }                                                               \
+} while (0)
+
+#define HAVE_ARCH_BUG
+#define HAVE_ARCH_BUG_ON
+#define HAVE_ARCH_WARN_ON
+#include <asm-generic/bug.h>
+
+#endif