1 files changed, 13 insertions, 0 deletions

diff --git a/include/linux/kgdb.h b/include/linux/kgdb.h
index c4d2fc194ede..4dff0c6ed58f 100644
--- a/include/linux/kgdb.h
+++ b/include/linux/kgdb.h
@@ -240,6 +240,7 @@ extern void kgdb_arch_late(void);
  * hardware breakpoints.
  * @correct_hw_break: Allow an architecture to specify how to correct the
  * hardware debug registers.
+ * @enable_nmi: Manage NMI-triggered entry to KGDB
  */
 struct kgdb_arch {
         unsigned char           gdb_bpt_instr[BREAK_INSTR_SIZE];
@@ -252,6 +253,8 @@ struct kgdb_arch {
         void    (*disable_hw_break)(struct pt_regs *regs);
         void    (*remove_all_hw_break)(void);
         void    (*correct_hw_break)(void);
+
+        void    (*enable_nmi)(bool on);
 };
 
 /**
@@ -283,6 +286,16 @@ extern struct kgdb_arch		arch_kgdb_ops;
 
 extern unsigned long __weak kgdb_arch_pc(int exception, struct pt_regs *regs);
 
+#ifdef CONFIG_SERIAL_KGDB_NMI
+extern int kgdb_register_nmi_console(void);
+extern int kgdb_unregister_nmi_console(void);
+extern bool kgdb_nmi_poll_knock(void);
+#else
+static inline int kgdb_register_nmi_console(void) { return 0; }
+static inline int kgdb_unregister_nmi_console(void) { return 0; }
+static inline bool kgdb_nmi_poll_knock(void) { return 1; }
+#endif
+
 extern int kgdb_register_io_module(struct kgdb_io *local_kgdb_io_ops);
 extern void kgdb_unregister_io_module(struct kgdb_io *local_kgdb_io_ops);
 extern struct kgdb_io *dbg_io_ops;