powerpc/kernel: Open code SET_DEFAULT_THREAD_PPR

This is only used in one location, open code it.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/include/asm/ppc_asm.h

@@ -413,19 +413,6 @@ END_FTR_SECTION_IFCLR(CPU_FTR_601)
 	FTR_SECTION_ELSE_NESTED(848);	\
 	mtocrf (FXM), RS;		\
 	ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_NOEXECUTE, 848)
-
-/*
- * PPR restore macros used in entry_64.S
- * Used for P7 or later processors
- */
-#define SET_DEFAULT_THREAD_PPR(ra, rb)					\
-BEGIN_FTR_SECTION_NESTED(945)						\
-	lis	ra,INIT_PPR@highest;	/* default ppr=3 */		\
-	ld	rb,PACACURRENT(r13);					\
-	sldi	ra,ra,32;	/* 11- 13 bits are used for ppr */	\
-	std	ra,TASKTHREADPPR(rb);					\
-END_FTR_SECTION_NESTED(CPU_FTR_HAS_PPR,CPU_FTR_HAS_PPR,945)
-
 #endif
 
 /*

arch/powerpc/kernel/entry_64.S

@@ -316,7 +316,13 @@ syscall_exit_work:
 	subi	r12,r12,TI_FLAGS
 
 4:	/* Anything else left to do? */
-	SET_DEFAULT_THREAD_PPR(r3, r10)		/* Set thread.ppr = 3 */
+BEGIN_FTR_SECTION
+	lis	r3,INIT_PPR@highest	/* Set thread.ppr = 3 */
+	ld	r10,PACACURRENT(r13)
+	sldi	r3,r3,32	/* bits 11-13 are used for ppr */
+	std	r3,TASKTHREADPPR(r10)
+END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
+
 	andi.	r0,r9,(_TIF_SYSCALL_DOTRACE|_TIF_SINGLESTEP)
 	beq	ret_from_except_lite