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-rw-r--r--arch/powerpc/include/asm/ppc_asm.h4
-rw-r--r--arch/powerpc/include/asm/reg.h15
-rw-r--r--arch/powerpc/include/asm/timex.h4
3 files changed, 14 insertions, 9 deletions
diff --git a/arch/powerpc/include/asm/ppc_asm.h b/arch/powerpc/include/asm/ppc_asm.h
index 8fdd3da134e0..599545738af3 100644
--- a/arch/powerpc/include/asm/ppc_asm.h
+++ b/arch/powerpc/include/asm/ppc_asm.h
@@ -433,13 +433,13 @@ END_FTR_SECTION_IFSET(CPU_FTR_601)
#if defined(CONFIG_PPC_CELL) || defined(CONFIG_PPC_FSL_BOOK3E)
#define MFTB(dest) \
-90: mftb dest; \
+90: mfspr dest, SPRN_TBRL; \
BEGIN_FTR_SECTION_NESTED(96); \
cmpwi dest,0; \
beq- 90b; \
END_FTR_SECTION_NESTED(CPU_FTR_CELL_TB_BUG, CPU_FTR_CELL_TB_BUG, 96)
#else
-#define MFTB(dest) mftb dest
+#define MFTB(dest) mfspr dest, SPRN_TBRL
#endif
#ifndef CONFIG_SMP
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index 55b03079d197..64264bf601f5 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -1120,7 +1120,7 @@
#if defined(CONFIG_PPC_CELL) || defined(CONFIG_PPC_FSL_BOOK3E)
#define mftb() ({unsigned long rval; \
asm volatile( \
- "90: mftb %0;\n" \
+ "90: mfspr %0, %2;\n" \
"97: cmpwi %0,0;\n" \
" beq- 90b;\n" \
"99:\n" \
@@ -1134,18 +1134,23 @@
" .llong 0\n" \
" .llong 0\n" \
".previous" \
- : "=r" (rval) : "i" (CPU_FTR_CELL_TB_BUG)); rval;})
+ : "=r" (rval) \
+ : "i" (CPU_FTR_CELL_TB_BUG), "i" (SPRN_TBRL)); \
+ rval;})
#else
#define mftb() ({unsigned long rval; \
- asm volatile("mftb %0" : "=r" (rval)); rval;})
+ asm volatile("mfspr %0, %1" : \
+ "=r" (rval) : "i" (SPRN_TBRL)); rval;})
#endif /* !CONFIG_PPC_CELL */
#else /* __powerpc64__ */
#define mftbl() ({unsigned long rval; \
- asm volatile("mftbl %0" : "=r" (rval)); rval;})
+ asm volatile("mfspr %0, %1" : "=r" (rval) : \
+ "i" (SPRN_TBRL)); rval;})
#define mftbu() ({unsigned long rval; \
- asm volatile("mftbu %0" : "=r" (rval)); rval;})
+ asm volatile("mfspr %0, %1" : "=r" (rval) : \
+ "i" (SPRN_TBRU)); rval;})
#endif /* !__powerpc64__ */
#define mttbl(v) asm volatile("mttbl %0":: "r"(v))
diff --git a/arch/powerpc/include/asm/timex.h b/arch/powerpc/include/asm/timex.h
index c55e14f7ef44..18908caa1f3b 100644
--- a/arch/powerpc/include/asm/timex.h
+++ b/arch/powerpc/include/asm/timex.h
@@ -29,7 +29,7 @@ static inline cycles_t get_cycles(void)
ret = 0;
__asm__ __volatile__(
- "97: mftb %0\n"
+ "97: mfspr %0, %2\n"
"99:\n"
".section __ftr_fixup,\"a\"\n"
".align 2\n"
@@ -41,7 +41,7 @@ static inline cycles_t get_cycles(void)
" .long 0\n"
" .long 0\n"
".previous"
- : "=r" (ret) : "i" (CPU_FTR_601));
+ : "=r" (ret) : "i" (CPU_FTR_601), "i" (SPRN_TBRL));
return ret;
#endif
}