powerpc: Merge xmon

The merged version follows the ppc64 version pretty closely mostly,
and in fact ARCH=ppc64 now uses the arch/powerpc/xmon version.
The main difference for ppc64 is that the 'p' command to call
show_state (which was always pretty dodgy) has been replaced by
the ppc32 'p' command, which calls a given procedure (so in fact
the old 'p' command behaviour can be achieved with 'p $show_state').

Signed-off-by: Paul Mackerras <paulus@samba.org>

3 files changed, 10 insertions, 1 deletions

diff --git a/include/asm-powerpc/ppc_asm.h b/include/asm-powerpc/ppc_asm.h
index 470d740..f99f2af 100644
--- a/include/asm-powerpc/ppc_asm.h
+++ b/include/asm-powerpc/ppc_asm.h
@@ -188,6 +188,10 @@ n:
 #define LDL	ld
 #define STL	std
 #define CMPI	cmpdi
+#define SZL	8
+
+/* offsets for stack frame layout */
+#define LRSAVE	16
 
 #else /* 32-bit */
 #define LOADADDR(rn,name) \
@@ -203,6 +207,10 @@ n:
 #define LDL	lwz
 #define STL	stw
 #define CMPI	cmpwi
+#define SZL	4
+
+/* offsets for stack frame layout */
+#define LRSAVE	4
 
 #endif
 
diff --git a/include/asm-powerpc/reg.h b/include/asm-powerpc/reg.h
index bfb45a4..da84841 100644
--- a/include/asm-powerpc/reg.h
+++ b/include/asm-powerpc/reg.h
@@ -546,6 +546,7 @@
 #define __mtmsrd(v, l)	asm volatile("mtmsrd %0," __stringify(l) \
 				     : : "r" (v))
 #define mtmsrd(v)	__mtmsrd((v), 0)
+#define mtmsr(v)	mtmsrd(v)
 #else
 #define mtmsr(v)	asm volatile("mtmsr %0" : : "r" (v))
 #endif
diff --git a/include/asm-powerpc/xmon.h b/include/asm-powerpc/xmon.h
index ca5f332..43f7129 100644
--- a/include/asm-powerpc/xmon.h
+++ b/include/asm-powerpc/xmon.h
@@ -4,7 +4,7 @@
 
 struct pt_regs;
 
-extern void xmon(struct pt_regs *excp);
+extern int xmon(struct pt_regs *excp);
 extern void xmon_printf(const char *fmt, ...);
 extern void xmon_init(int);