Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / blackfin / include / asm / bug.h

diff --git a/kernel/arch/blackfin/include/asm/bug.h b/kernel/arch/blackfin/include/asm/bug.h
new file mode 100644 (file)
index 0000000..8d9b1eb
--- /dev/null
+++ b/kernel/arch/blackfin/include/asm/bug.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright 2004-2009 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef _BLACKFIN_BUG_H
+#define _BLACKFIN_BUG_H
+
+#ifdef CONFIG_BUG
+
+/*
+ * This can be any undefined 16-bit opcode, meaning
+ * ((opcode & 0xc000) != 0xc000)
+ * Anything from 0x0001 to 0x000A (inclusive) will work
+ */
+#define BFIN_BUG_OPCODE        0x0001
+
+#ifdef CONFIG_DEBUG_BUGVERBOSE
+
+#define _BUG_OR_WARN(flags)                                            \
+       asm volatile(                                                   \
+               "1:     .hword  %0\n"                                   \
+               "       .section __bug_table,\"a\",@progbits\n"         \
+               "2:     .long   1b\n"                                   \
+               "       .long   %1\n"                                   \
+               "       .short  %2\n"                                   \
+               "       .short  %3\n"                                   \
+               "       .org    2b + %4\n"                              \
+               "       .previous"                                      \
+               :                                                       \
+               : "i"(BFIN_BUG_OPCODE), "i"(__FILE__),                  \
+                 "i"(__LINE__), "i"(flags),                            \
+                 "i"(sizeof(struct bug_entry)))
+
+#else
+
+#define _BUG_OR_WARN(flags)                                            \
+       asm volatile(                                                   \
+               "1:     .hword  %0\n"                                   \
+               "       .section __bug_table,\"a\",@progbits\n"         \
+               "2:     .long   1b\n"                                   \
+               "       .short  %1\n"                                   \
+               "       .org    2b + %2\n"                              \
+               "       .previous"                                      \
+               :                                                       \
+               : "i"(BFIN_BUG_OPCODE), "i"(flags),                     \
+                 "i"(sizeof(struct bug_entry)))
+
+#endif /* CONFIG_DEBUG_BUGVERBOSE */
+
+#define BUG()                                                          \
+       do {                                                            \
+               _BUG_OR_WARN(0);                                        \
+               unreachable();                                          \
+       } while (0)
+
+#define WARN_ON(condition)                                                     \
+       ({                                                              \
+               int __ret_warn_on = !!(condition);                      \
+               if (unlikely(__ret_warn_on))                            \
+                       _BUG_OR_WARN(BUGFLAG_WARNING);                  \
+               unlikely(__ret_warn_on);                                \
+       })
+
+#define HAVE_ARCH_BUG
+#define HAVE_ARCH_WARN_ON
+
+#endif
+
+#include <asm-generic/bug.h>
+
+#endif