1 files changed, 92 insertions, 0 deletions

diff --git a/arch/parisc/include/asm/bug.h b/arch/parisc/include/asm/bug.h
new file mode 100644
index 000000000000..8cfc553fc837
--- /dev/null
+++ b/arch/parisc/include/asm/bug.h
@@ -0,0 +1,92 @@
+#ifndef _PARISC_BUG_H
+#define _PARISC_BUG_H
+
+/*
+ * Tell the user there is some problem.
+ * The offending file and line are encoded in the __bug_table section.
+ */
+
+#ifdef CONFIG_BUG
+#define HAVE_ARCH_BUG
+#define HAVE_ARCH_WARN_ON
+
+/* the break instruction is used as BUG() marker.  */
+#define PARISC_BUG_BREAK_ASM    "break 0x1f, 0x1fff"
+#define PARISC_BUG_BREAK_INSN   0x03ffe01f  /* PARISC_BUG_BREAK_ASM */
+
+#if defined(CONFIG_64BIT)
+#define ASM_WORD_INSN           ".dword\t"
+#else
+#define ASM_WORD_INSN           ".word\t"
+#endif
+
+#ifdef CONFIG_DEBUG_BUGVERBOSE
+#define BUG()                                                           \
+        do {                                                            \
+                asm volatile("\n"                                       \
+                             "1:\t" PARISC_BUG_BREAK_ASM "\n"           \
+                             "\t.pushsection __bug_table,\"a\"\n"       \
+                             "2:\t" ASM_WORD_INSN "1b, %c0\n"           \
+                             "\t.short %c1, %c2\n"                      \
+                             "\t.org 2b+%c3\n"                          \
+                             "\t.popsection"                            \
+                             : : "i" (__FILE__), "i" (__LINE__),        \
+                             "i" (0), "i" (sizeof(struct bug_entry)) ); \
+                for(;;) ;                                               \
+        } while(0)
+
+#else
+#define BUG()                                                           \
+        do {                                                            \
+                asm volatile(PARISC_BUG_BREAK_ASM : : );                \
+                for(;;) ;                                               \
+        } while(0)
+#endif
+
+#ifdef CONFIG_DEBUG_BUGVERBOSE
+#define __WARN()                                                        \
+        do {                                                            \
+                asm volatile("\n"                                       \
+                             "1:\t" PARISC_BUG_BREAK_ASM "\n"           \
+                             "\t.pushsection __bug_table,\"a\"\n"       \
+                             "2:\t" ASM_WORD_INSN "1b, %c0\n"           \
+                             "\t.short %c1, %c2\n"                      \
+                             "\t.org 2b+%c3\n"                          \
+                             "\t.popsection"                            \
+                             : : "i" (__FILE__), "i" (__LINE__),        \
+                             "i" (BUGFLAG_WARNING),                     \
+                             "i" (sizeof(struct bug_entry)) );          \
+        } while(0)
+#else
+#define __WARN()                                                        \
+        do {                                                            \
+                asm volatile("\n"                                       \
+                             "1:\t" PARISC_BUG_BREAK_ASM "\n"           \
+                             "\t.pushsection __bug_table,\"a\"\n"       \
+                             "2:\t" ASM_WORD_INSN "1b\n"                \
+                             "\t.short %c0\n"                           \
+                             "\t.org 2b+%c1\n"                          \
+                             "\t.popsection"                            \
+                             : : "i" (BUGFLAG_WARNING),                 \
+                             "i" (sizeof(struct bug_entry)) );          \
+        } while(0)
+#endif
+
+
+#define WARN_ON(x) ({                                           \
+        int __ret_warn_on = !!(x);                              \
+        if (__builtin_constant_p(__ret_warn_on)) {              \
+                if (__ret_warn_on)                              \
+                        __WARN();                               \
+        } else {                                                \
+                if (unlikely(__ret_warn_on))                    \
+                        __WARN();                               \
+        }                                                       \
+        unlikely(__ret_warn_on);                                \
+})
+
+#endif
+
+#include <asm-generic/bug.h>
+#endif
+