ppc64: remove bcopy and cacheable_memcpy

arch/ppc64/lib/string.S

@@ -145,91 +145,6 @@ _GLOBAL(memset)
 	bdnz	8b
 	blr
 
-_GLOBAL(bcopy)
-	mr	r6,r3
-	mr	r3,r4
-	mr	r4,r6
-	b	.memcpy
-
-/*
- * This version uses dcbz on the complete cache lines in the
- * destination area to reduce memory traffic.  This requires that
- * the destination area is cacheable.
- * We only use this version if the source and dest don't overlap.
- * -- paulus.
- */
-_GLOBAL(cacheable_memcpy)
-	add	r7,r3,r5		/* test if the src & dst overlap */
-	add	r8,r4,r5
-	cmplw	0,r4,r7
-	cmplw	1,r3,r8
-	crand	0,0,4			/* cr0.lt &= cr1.lt */
-	blt	.memcpy			/* if regions overlap */
-
-	addi	r4,r4,-4
-	addi	r6,r3,-4
-	neg	r0,r3
-	andi.	r0,r0,CACHELINE_MASK	/* # bytes to start of cache line */
-	beq	58f
-
-	cmplw	0,r5,r0			/* is this more than total to do? */
-	blt	63f			/* if not much to do */
-	andi.	r8,r0,3			/* get it word-aligned first */
-	subf	r5,r0,r5
-	mtctr	r8
-	beq+	61f
-70:	lbz	r9,4(r4)		/* do some bytes */
-	stb	r9,4(r6)
-	addi	r4,r4,1
-	addi	r6,r6,1
-	bdnz	70b
-61:	srwi.	r0,r0,2
-	mtctr	r0
-	beq	58f
-72:	lwzu	r9,4(r4)		/* do some words */
-	stwu	r9,4(r6)
-	bdnz	72b
-
-58:	srwi.	r0,r5,LG_CACHELINE_BYTES /* # complete cachelines */
-	clrlwi	r5,r5,32-LG_CACHELINE_BYTES
-	li	r11,4
-	mtctr	r0
-	beq	63f
-53:
-	dcbz	r11,r6
-	COPY_16_BYTES
-#if CACHE_LINE_SIZE >= 32
-	COPY_16_BYTES
-#if CACHE_LINE_SIZE >= 64
-	COPY_16_BYTES
-	COPY_16_BYTES
-#if CACHE_LINE_SIZE >= 128
-	COPY_16_BYTES
-	COPY_16_BYTES
-	COPY_16_BYTES
-	COPY_16_BYTES
-#endif
-#endif
-#endif
-	bdnz	53b
-
-63:	srwi.	r0,r5,2
-	mtctr	r0
-	beq	64f
-30:	lwzu	r0,4(r4)
-	stwu	r0,4(r6)
-	bdnz	30b
-
-64:	andi.	r0,r5,3
-	mtctr	r0
-	beq+	65f
-40:	lbz	r0,4(r4)
-	stb	r0,4(r6)
-	addi	r4,r4,1
-	addi	r6,r6,1
-	bdnz	40b
-65:	blr
-
 _GLOBAL(memmove)
 	cmplw	0,r3,r4
 	bgt	.backwards_memcpy