[POWERPC] Only export __mtdcr/__mfdcr if CONFIG_PPC_DCR is set

On 85xx we don't build in dcr support because the core doesn't implement the
instructions.  This caused problems when building an 85xx kernel.  Additionally
made it so we only build __mtdcr/__mfdcr if we are CONFIG_PPC_DCR_NATIVE.

The 85xx build issue wasPointed out by Dai Haruki.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

1 files changed, 2 insertions, 34 deletions

diff --git a/include/asm-ppc/reg_booke.h b/include/asm-ppc/reg_booke.h
index 602fbadeaf48..a263fc1e65c4 100644
--- a/include/asm-ppc/reg_booke.h
+++ b/include/asm-ppc/reg_booke.h
@@ -9,41 +9,9 @@
 #ifndef __ASM_PPC_REG_BOOKE_H__
 #define __ASM_PPC_REG_BOOKE_H__
 
-#ifndef __ASSEMBLY__
-/* Device Control Registers */
-void __mtdcr(int reg, unsigned int val);
-unsigned int __mfdcr(int reg);
-#define mfdcr(rn)                                               \
-        ({unsigned int rval;                                    \
-        if (__builtin_constant_p(rn))                           \
-                asm volatile("mfdcr %0," __stringify(rn)        \
-                              : "=r" (rval));                   \
-        else                                                    \
-                rval = __mfdcr(rn);                             \
-        rval;})
-
-#define mtdcr(rn, v)                                            \
-do {                                                            \
-        if (__builtin_constant_p(rn))                           \
-                asm volatile("mtdcr " __stringify(rn) ",%0"     \
-                              : : "r" (v));                     \
-        else                                                    \
-                __mtdcr(rn, v);                                 \
-} while (0)
-
-/* R/W of indirect DCRs make use of standard naming conventions for DCRs */
-#define mfdcri(base, reg)                       \
-({                                              \
-        mtdcr(base ## _CFGADDR, base ## _ ## reg);      \
-        mfdcr(base ## _CFGDATA);                        \
-})
-
-#define mtdcri(base, reg, data)                 \
-do {                                            \
-        mtdcr(base ## _CFGADDR, base ## _ ## reg);      \
-        mtdcr(base ## _CFGDATA, data);          \
-} while (0)
+#include <asm/dcr.h>
 
+#ifndef __ASSEMBLY__
 /* Performance Monitor Registers */
 #define mfpmr(rn)       ({unsigned int rval; \
                         asm volatile("mfpmr %0," __stringify(rn) \