[MIPS] kgdb: add arch support for the kernel's kgdb core

The new kgdb architecture specific handler registers and unregisters
dynamically for exceptions depending on when you configure a kgdb I/O
driver.

Aside from initializing the exceptions earlier in the boot process,
kgdb should have no impact on a device when it is compiled in so long
as an I/O module is not configured for use.

There have been quite a number of contributors during the existence of
this patch (see arch/mips/kernel/kgdb.c).  Most recently Jason
re-wrote the mips kgdb logic to use the die notification handlers.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 13 insertions, 1 deletions

diff --git a/include/asm-mips/kdebug.h b/include/asm-mips/kdebug.h
index 6ece1b03766..5bf62aafc89 100644
--- a/include/asm-mips/kdebug.h
+++ b/include/asm-mips/kdebug.h
@@ -1 +1,13 @@
-#include <asm-generic/kdebug.h>
+#ifndef _ASM_MIPS_KDEBUG_H
+#define _ASM_MIPS_KDEBUG_H
+
+#include <linux/notifier.h>
+
+enum die_val {
+	DIE_OOPS = 1,
+	DIE_FP,
+	DIE_TRAP,
+	DIE_RI,
+};
+
+#endif /* _ASM_MIPS_KDEBUG_H */