Commit c152f149 authored by LEROY Christophe's avatar LEROY Christophe Committed by Scott Wood
Browse files

powerpc/32: Merge the new memset() with the old one 



cacheable_memzero() which has become the new memset() and the old
memset() are quite similar, so just merge them.

Signed-off-by: default avatarChristophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: default avatarScott Wood <scottwood@freescale.com>
parent 5b2a32e8

arch/powerpc/lib/copy_32.S

+7 −27
Original line number Diff line number Diff line
@@ -75,8 +75,9 @@ CACHELINE_MASK = (L1_CACHE_BYTES-1) 
 * area is cacheable.  -- paulus

 */

_GLOBAL(memset)

	cmplwi	r4,0

	bne-	generic_memset

	rlwimi	r4,r4,8,16,23

	rlwimi	r4,r4,16,0,15



	addi	r6,r3,-4

	cmplwi	0,r5,4

	blt	7f
@@ -85,6 +86,9 @@ _GLOBAL(memset) 
	andi.	r0,r6,3

	add	r5,r0,r5

	subf	r6,r0,r6

	cmplwi	0,r4,0

	bne	2f	/* Use normal procedure if r4 is not zero */



	clrlwi	r7,r6,32-LG_CACHELINE_BYTES

	add	r8,r7,r5

	srwi	r9,r8,LG_CACHELINE_BYTES
@@ -103,32 +107,8 @@ _GLOBAL(memset) 
	bdnz	10b

	clrlwi	r5,r8,32-LG_CACHELINE_BYTES

	addi	r5,r5,4

2:	srwi	r0,r5,2

	mtctr	r0

	bdz	6f

1:	stwu	r4,4(r6)

	bdnz	1b

6:	andi.	r5,r5,3

7:	cmpwi	0,r5,0

	beqlr

	mtctr	r5

	addi	r6,r6,3

8:	stbu	r4,1(r6)

	bdnz	8b

	blr



_GLOBAL(generic_memset)

	rlwimi	r4,r4,8,16,23

	rlwimi	r4,r4,16,0,15

	addi	r6,r3,-4

	cmplwi	0,r5,4

	blt	7f

	stwu	r4,4(r6)

	beqlr

	andi.	r0,r6,3

	add	r5,r0,r5

	subf	r6,r0,r6

	srwi	r0,r5,2

2:	srwi	r0,r5,2

	mtctr	r0

	bdz	6f

1:	stwu	r4,4(r6)

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