MN10300: Use KGDB

2 files changed, 83 insertions, 1 deletions

diff --git a/arch/mn10300/include/asm/kgdb.h b/arch/mn10300/include/asm/kgdb.h
new file mode 100644
index 000000000000..eb245f18a708
--- /dev/null
+++ b/arch/mn10300/include/asm/kgdb.h
@@ -0,0 +1,81 @@
+/* Kernel debugger for MN10300
+ *
+ * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#ifndef _ASM_KGDB_H
+#define _ASM_KGDB_H
+
+/*
+ * BUFMAX defines the maximum number of characters in inbound/outbound
+ * buffers at least NUMREGBYTES*2 are needed for register packets
+ * Longer buffer is needed to list all threads
+ */
+#define BUFMAX                  1024
+
+/*
+ * Note that this register image is in a different order than the register
+ * image that Linux produces at interrupt time.
+ */
+enum regnames {
+        GDB_FR_D0               = 0,
+        GDB_FR_D1               = 1,
+        GDB_FR_D2               = 2,
+        GDB_FR_D3               = 3,
+        GDB_FR_A0               = 4,
+        GDB_FR_A1               = 5,
+        GDB_FR_A2               = 6,
+        GDB_FR_A3               = 7,
+
+        GDB_FR_SP               = 8,
+        GDB_FR_PC               = 9,
+        GDB_FR_MDR              = 10,
+        GDB_FR_EPSW             = 11,
+        GDB_FR_LIR              = 12,
+        GDB_FR_LAR              = 13,
+        GDB_FR_MDRQ             = 14,
+
+        GDB_FR_E0               = 15,
+        GDB_FR_E1               = 16,
+        GDB_FR_E2               = 17,
+        GDB_FR_E3               = 18,
+        GDB_FR_E4               = 19,
+        GDB_FR_E5               = 20,
+        GDB_FR_E6               = 21,
+        GDB_FR_E7               = 22,
+
+        GDB_FR_SSP              = 23,
+        GDB_FR_MSP              = 24,
+        GDB_FR_USP              = 25,
+        GDB_FR_MCRH             = 26,
+        GDB_FR_MCRL             = 27,
+        GDB_FR_MCVF             = 28,
+
+        GDB_FR_FPCR             = 29,
+        GDB_FR_DUMMY0           = 30,
+        GDB_FR_DUMMY1           = 31,
+
+        GDB_FR_FS0              = 32,
+
+        GDB_FR_SIZE             = 64,
+};
+
+#define GDB_ORIG_D0             41
+#define NUMREGBYTES             (GDB_FR_SIZE*4)
+
+static inline void arch_kgdb_breakpoint(void)
+{
+        asm(".globl __arch_kgdb_breakpoint; __arch_kgdb_breakpoint: break");
+}
+extern u8 __arch_kgdb_breakpoint;
+
+#define BREAK_INSTR_SIZE        1
+#define CACHE_FLUSH_IS_SAFE     1
+
+#endif /* _ASM_KGDB_H */
diff --git a/arch/mn10300/include/asm/smp.h b/arch/mn10300/include/asm/smp.h
index e3d13a899855..6745dbe64944 100644
--- a/arch/mn10300/include/asm/smp.h
+++ b/arch/mn10300/include/asm/smp.h
@@ -62,8 +62,9 @@
  * An alternate way of dealing with this could be to use the EPSW.S bits to
  * cache this information for systems with up to four CPUs.
  */
+#define arch_smp_processor_id() (CPUID)
 #if 0
-#define raw_smp_processor_id()  (CPUID)
+#define raw_smp_processor_id()  (arch_smp_processor_id())
 #else
 #define raw_smp_processor_id()  (current_thread_info()->cpu)
 #endif