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-rw-r--r--arch/powerpc/xmon/xmon.c25
1 files changed, 18 insertions, 7 deletions
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index cfcb2a56d66..ef4356b29a9 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -1467,17 +1467,23 @@ read_spr(int n)
{
unsigned int instrs[2];
unsigned long (*code)(void);
- unsigned long opd[3];
unsigned long ret = -1UL;
+#ifdef CONFIG_PPC64
+ unsigned long opd[3];
- instrs[0] = 0x7c6002a6 + ((n & 0x1F) << 16) + ((n & 0x3e0) << 6);
- instrs[1] = 0x4e800020;
opd[0] = (unsigned long)instrs;
opd[1] = 0;
opd[2] = 0;
+ code = (unsigned long (*)(void)) opd;
+#else
+ code = (unsigned long (*)(void)) instrs;
+#endif
+
+ /* mfspr r3,n; blr */
+ instrs[0] = 0x7c6002a6 + ((n & 0x1F) << 16) + ((n & 0x3e0) << 6);
+ instrs[1] = 0x4e800020;
store_inst(instrs);
store_inst(instrs+1);
- code = (unsigned long (*)(void)) opd;
if (setjmp(bus_error_jmp) == 0) {
catch_memory_errors = 1;
@@ -1499,16 +1505,21 @@ write_spr(int n, unsigned long val)
{
unsigned int instrs[2];
unsigned long (*code)(unsigned long);
+#ifdef CONFIG_PPC64
unsigned long opd[3];
- instrs[0] = 0x7c6003a6 + ((n & 0x1F) << 16) + ((n & 0x3e0) << 6);
- instrs[1] = 0x4e800020;
opd[0] = (unsigned long)instrs;
opd[1] = 0;
opd[2] = 0;
+ code = (unsigned long (*)(unsigned long)) opd;
+#else
+ code = (unsigned long (*)(unsigned long)) instrs;
+#endif
+
+ instrs[0] = 0x7c6003a6 + ((n & 0x1F) << 16) + ((n & 0x3e0) << 6);
+ instrs[1] = 0x4e800020;
store_inst(instrs);
store_inst(instrs+1);
- code = (unsigned long (*)(unsigned long)) opd;
if (setjmp(bus_error_jmp) == 0) {
catch_memory_errors = 1;