Merge branch 'linus' into stackprotector

Conflicts:
	arch/x86/include/asm/pda.h
	kernel/fork.c

1 files changed, 563 insertions, 0 deletions

diff --git a/arch/sparc/lib/U1memcpy.S b/arch/sparc/lib/U1memcpy.S
new file mode 100644
index 000000000000..bafd2fc07acb
--- /dev/null
+++ b/arch/sparc/lib/U1memcpy.S
@@ -0,0 +1,563 @@
+/* U1memcpy.S: UltraSPARC-I/II/IIi/IIe optimized memcpy.
+ *
+ * Copyright (C) 1997, 2004 David S. Miller (davem@redhat.com)
+ * Copyright (C) 1996, 1997, 1998, 1999 Jakub Jelinek (jj@ultra.linux.cz)
+ */
+
+#ifdef __KERNEL__
+#include <asm/visasm.h>
+#include <asm/asi.h>
+#define GLOBAL_SPARE	g7
+#else
+#define GLOBAL_SPARE	g5
+#define ASI_BLK_P 0xf0
+#define FPRS_FEF  0x04
+#ifdef MEMCPY_DEBUG
+#define VISEntry rd %fprs, %o5; wr %g0, FPRS_FEF, %fprs; \
+		 clr %g1; clr %g2; clr %g3; subcc %g0, %g0, %g0;
+#define VISExit and %o5, FPRS_FEF, %o5; wr %o5, 0x0, %fprs
+#else
+#define VISEntry rd %fprs, %o5; wr %g0, FPRS_FEF, %fprs
+#define VISExit and %o5, FPRS_FEF, %o5; wr %o5, 0x0, %fprs
+#endif
+#endif
+
+#ifndef EX_LD
+#define EX_LD(x)	x
+#endif
+
+#ifndef EX_ST
+#define EX_ST(x)	x
+#endif
+
+#ifndef EX_RETVAL
+#define EX_RETVAL(x)	x
+#endif
+
+#ifndef LOAD
+#define LOAD(type,addr,dest)	type [addr], dest
+#endif
+
+#ifndef LOAD_BLK
+#define LOAD_BLK(addr,dest)	ldda [addr] ASI_BLK_P, dest
+#endif
+
+#ifndef STORE
+#define STORE(type,src,addr)	type src, [addr]
+#endif
+
+#ifndef STORE_BLK
+#define STORE_BLK(src,addr)	stda src, [addr] ASI_BLK_P
+#endif
+
+#ifndef FUNC_NAME
+#define FUNC_NAME	memcpy
+#endif
+
+#ifndef PREAMBLE
+#define PREAMBLE
+#endif
+
+#ifndef XCC
+#define XCC xcc
+#endif
+
+#define FREG_FROB(f1, f2, f3, f4, f5, f6, f7, f8, f9)		\
+	faligndata		%f1, %f2, %f48;			\
+	faligndata		%f2, %f3, %f50;			\
+	faligndata		%f3, %f4, %f52;			\
+	faligndata		%f4, %f5, %f54;			\
+	faligndata		%f5, %f6, %f56;			\
+	faligndata		%f6, %f7, %f58;			\
+	faligndata		%f7, %f8, %f60;			\
+	faligndata		%f8, %f9, %f62;
+
+#define MAIN_LOOP_CHUNK(src, dest, fdest, fsrc, len, jmptgt)	\
+	EX_LD(LOAD_BLK(%src, %fdest));				\
+	EX_ST(STORE_BLK(%fsrc, %dest));				\
+	add			%src, 0x40, %src;		\
+	subcc			%len, 0x40, %len;		\
+	be,pn			%xcc, jmptgt;			\
+	 add			%dest, 0x40, %dest;		\
+
+#define LOOP_CHUNK1(src, dest, len, branch_dest)		\
+	MAIN_LOOP_CHUNK(src, dest, f0,  f48, len, branch_dest)
+#define LOOP_CHUNK2(src, dest, len, branch_dest)		\
+	MAIN_LOOP_CHUNK(src, dest, f16, f48, len, branch_dest)
+#define LOOP_CHUNK3(src, dest, len, branch_dest)		\
+	MAIN_LOOP_CHUNK(src, dest, f32, f48, len, branch_dest)
+
+#define DO_SYNC			membar	#Sync;
+#define STORE_SYNC(dest, fsrc)				\
+	EX_ST(STORE_BLK(%fsrc, %dest));			\
+	add			%dest, 0x40, %dest;	\
+	DO_SYNC
+
+#define STORE_JUMP(dest, fsrc, target)			\
+	EX_ST(STORE_BLK(%fsrc, %dest));			\
+	add			%dest, 0x40, %dest;	\
+	ba,pt			%xcc, target;		\
+	 nop;
+
+#define FINISH_VISCHUNK(dest, f0, f1, left)	\
+	subcc			%left, 8, %left;\
+	bl,pn			%xcc, 95f;	\
+	 faligndata		%f0, %f1, %f48;	\
+	EX_ST(STORE(std, %f48, %dest));		\
+	add			%dest, 8, %dest;
+
+#define UNEVEN_VISCHUNK_LAST(dest, f0, f1, left)	\
+	subcc			%left, 8, %left;	\
+	bl,pn			%xcc, 95f;		\
+	 fsrc1			%f0, %f1;
+
+#define UNEVEN_VISCHUNK(dest, f0, f1, left)		\
+	UNEVEN_VISCHUNK_LAST(dest, f0, f1, left)	\
+	ba,a,pt			%xcc, 93f;
+
+	.register	%g2,#scratch
+	.register	%g3,#scratch
+
+	.text
+	.align		64
+
+	.globl		FUNC_NAME
+	.type		FUNC_NAME,#function
+FUNC_NAME:		/* %o0=dst, %o1=src, %o2=len */
+	srlx		%o2, 31, %g2
+	cmp		%g2, 0
+	tne		%xcc, 5
+	PREAMBLE
+	mov		%o0, %o4
+	cmp		%o2, 0
+	be,pn		%XCC, 85f
+	 or		%o0, %o1, %o3
+	cmp		%o2, 16
+	blu,a,pn	%XCC, 80f
+	 or		%o3, %o2, %o3
+
+	cmp		%o2, (5 * 64)
+	blu,pt		%XCC, 70f
+	 andcc		%o3, 0x7, %g0
+
+	/* Clobbers o5/g1/g2/g3/g7/icc/xcc.  */
+	VISEntry
+
+	/* Is 'dst' already aligned on an 64-byte boundary? */
+	andcc		%o0, 0x3f, %g2
+	be,pt		%XCC, 2f
+
+	/* Compute abs((dst & 0x3f) - 0x40) into %g2.  This is the number
+	 * of bytes to copy to make 'dst' 64-byte aligned.  We pre-
+	 * subtract this from 'len'.
+	 */
+	 sub		%o0, %o1, %GLOBAL_SPARE
+	sub		%g2, 0x40, %g2
+	sub		%g0, %g2, %g2
+	sub		%o2, %g2, %o2
+	andcc		%g2, 0x7, %g1
+	be,pt		%icc, 2f
+	 and		%g2, 0x38, %g2
+
+1:	subcc		%g1, 0x1, %g1
+	EX_LD(LOAD(ldub, %o1 + 0x00, %o3))
+	EX_ST(STORE(stb, %o3, %o1 + %GLOBAL_SPARE))
+	bgu,pt		%XCC, 1b
+	 add		%o1, 0x1, %o1
+
+	add		%o1, %GLOBAL_SPARE, %o0
+
+2:	cmp		%g2, 0x0
+	and		%o1, 0x7, %g1
+	be,pt		%icc, 3f
+	 alignaddr	%o1, %g0, %o1
+
+	EX_LD(LOAD(ldd, %o1, %f4))
+1:	EX_LD(LOAD(ldd, %o1 + 0x8, %f6))
+	add		%o1, 0x8, %o1
+	subcc		%g2, 0x8, %g2
+	faligndata	%f4, %f6, %f0
+	EX_ST(STORE(std, %f0, %o0))
+	be,pn		%icc, 3f
+	 add		%o0, 0x8, %o0
+
+	EX_LD(LOAD(ldd, %o1 + 0x8, %f4))
+	add		%o1, 0x8, %o1
+	subcc		%g2, 0x8, %g2
+	faligndata	%f6, %f4, %f0
+	EX_ST(STORE(std, %f0, %o0))
+	bne,pt		%icc, 1b
+	 add		%o0, 0x8, %o0
+
+	/* Destination is 64-byte aligned.  */
+3:	
+	membar		  #LoadStore | #StoreStore | #StoreLoad
+
+	subcc		%o2, 0x40, %GLOBAL_SPARE
+	add		%o1, %g1, %g1
+	andncc		%GLOBAL_SPARE, (0x40 - 1), %GLOBAL_SPARE
+	srl		%g1, 3, %g2
+	sub		%o2, %GLOBAL_SPARE, %g3
+	andn		%o1, (0x40 - 1), %o1
+	and		%g2, 7, %g2
+	andncc		%g3, 0x7, %g3
+	fmovd		%f0, %f2
+	sub		%g3, 0x8, %g3
+	sub		%o2, %GLOBAL_SPARE, %o2
+
+	add		%g1, %GLOBAL_SPARE, %g1
+	subcc		%o2, %g3, %o2
+
+	EX_LD(LOAD_BLK(%o1, %f0))
+	add		%o1, 0x40, %o1
+	add		%g1, %g3, %g1
+	EX_LD(LOAD_BLK(%o1, %f16))
+	add		%o1, 0x40, %o1
+	sub		%GLOBAL_SPARE, 0x80, %GLOBAL_SPARE
+	EX_LD(LOAD_BLK(%o1, %f32))
+	add		%o1, 0x40, %o1
+
+	/* There are 8 instances of the unrolled loop,
+	 * one for each possible alignment of the
+	 * source buffer.  Each loop instance is 452
+	 * bytes.
+	 */
+	sll		%g2, 3, %o3
+	sub		%o3, %g2, %o3
+	sllx		%o3, 4, %o3
+	add		%o3, %g2, %o3
+	sllx		%o3, 2, %g2
+1:	rd		%pc, %o3
+	add		%o3, %lo(1f - 1b), %o3
+	jmpl		%o3 + %g2, %g0
+	 nop
+
+	.align		64
+1:	FREG_FROB(f0, f2, f4, f6, f8, f10,f12,f14,f16)
+	LOOP_CHUNK1(o1, o0, GLOBAL_SPARE, 1f)
+	FREG_FROB(f16,f18,f20,f22,f24,f26,f28,f30,f32)
+	LOOP_CHUNK2(o1, o0, GLOBAL_SPARE, 2f)
+	FREG_FROB(f32,f34,f36,f38,f40,f42,f44,f46,f0)
+	LOOP_CHUNK3(o1, o0, GLOBAL_SPARE, 3f)
+	ba,pt		%xcc, 1b+4
+	 faligndata	%f0, %f2, %f48
+1:	FREG_FROB(f16,f18,f20,f22,f24,f26,f28,f30,f32)
+	STORE_SYNC(o0, f48)
+	FREG_FROB(f32,f34,f36,f38,f40,f42,f44,f46,f0)
+	STORE_JUMP(o0, f48, 40f)
+2:	FREG_FROB(f32,f34,f36,f38,f40,f42,f44,f46,f0)
+	STORE_SYNC(o0, f48)
+	FREG_FROB(f0, f2, f4, f6, f8, f10,f12,f14,f16)
+	STORE_JUMP(o0, f48, 48f)
+3:	FREG_FROB(f0, f2, f4, f6, f8, f10,f12,f14,f16)
+	STORE_SYNC(o0, f48)
+	FREG_FROB(f16,f18,f20,f22,f24,f26,f28,f30,f32)
+	STORE_JUMP(o0, f48, 56f)
+
+1:	FREG_FROB(f2, f4, f6, f8, f10,f12,f14,f16,f18)
+	LOOP_CHUNK1(o1, o0, GLOBAL_SPARE, 1f)
+	FREG_FROB(f18,f20,f22,f24,f26,f28,f30,f32,f34)
+	LOOP_CHUNK2(o1, o0, GLOBAL_SPARE, 2f)
+	FREG_FROB(f34,f36,f38,f40,f42,f44,f46,f0, f2)
+	LOOP_CHUNK3(o1, o0, GLOBAL_SPARE, 3f)
+	ba,pt		%xcc, 1b+4
+	 faligndata	%f2, %f4, %f48
+1:	FREG_FROB(f18,f20,f22,f24,f26,f28,f30,f32,f34)
+	STORE_SYNC(o0, f48)
+	FREG_FROB(f34,f36,f38,f40,f42,f44,f46,f0, f2)
+	STORE_JUMP(o0, f48, 41f)
+2:	FREG_FROB(f34,f36,f38,f40,f42,f44,f46,f0, f2)
+	STORE_SYNC(o0, f48)
+	FREG_FROB(f2, f4, f6, f8, f10,f12,f14,f16,f18)
+	STORE_JUMP(o0, f48, 49f)
+3:	FREG_FROB(f2, f4, f6, f8, f10,f12,f14,f16,f18)
+	STORE_SYNC(o0, f48)
+	FREG_FROB(f18,f20,f22,f24,f26,f28,f30,f32,f34)
+	STORE_JUMP(o0, f48, 57f)
+
+1:	FREG_FROB(f4, f6, f8, f10,f12,f14,f16,f18,f20)
+	LOOP_CHUNK1(o1, o0, GLOBAL_SPARE, 1f)
+	FREG_FROB(f20,f22,f24,f26,f28,f30,f32,f34,f36)
+	LOOP_CHUNK2(o1, o0, GLOBAL_SPARE, 2f)
+	FREG_FROB(f36,f38,f40,f42,f44,f46,f0, f2, f4)
+	LOOP_CHUNK3(o1, o0, GLOBAL_SPARE, 3f)
+	ba,pt		%xcc, 1b+4
+	 faligndata	%f4, %f6, %f48
+1:	FREG_FROB(f20,f22,f24,f26,f28,f30,f32,f34,f36)
+	STORE_SYNC(o0, f48)
+	FREG_FROB(f36,f38,f40,f42,f44,f46,f0, f2, f4)
+	STORE_JUMP(o0, f48, 42f)
+2:	FREG_FROB(f36,f38,f40,f42,f44,f46,f0, f2, f4)
+	STORE_SYNC(o0, f48)
+	FREG_FROB(f4, f6, f8, f10,f12,f14,f16,f18,f20)
+	STORE_JUMP(o0, f48, 50f)
+3:	FREG_FROB(f4, f6, f8, f10,f12,f14,f16,f18,f20)
+	STORE_SYNC(o0, f48)
+	FREG_FROB(f20,f22,f24,f26,f28,f30,f32,f34,f36)
+	STORE_JUMP(o0, f48, 58f)
+
+1:	FREG_FROB(f6, f8, f10,f12,f14,f16,f18,f20,f22)
+	LOOP_CHUNK1(o1, o0, GLOBAL_SPARE, 1f)
+	FREG_FROB(f22,f24,f26,f28,f30,f32,f34,f36,f38)
+	LOOP_CHUNK2(o1, o0, GLOBAL_SPARE, 2f)
+	FREG_FROB(f38,f40,f42,f44,f46,f0, f2, f4, f6) 
+	LOOP_CHUNK3(o1, o0, GLOBAL_SPARE, 3f)
+	ba,pt		%xcc, 1b+4
+	 faligndata	%f6, %f8, %f48
+1:	FREG_FROB(f22,f24,f26,f28,f30,f32,f34,f36,f38)
+	STORE_SYNC(o0, f48)
+	FREG_FROB(f38,f40,f42,f44,f46,f0, f2, f4, f6)
+	STORE_JUMP(o0, f48, 43f)
+2:	FREG_FROB(f38,f40,f42,f44,f46,f0, f2, f4, f6)
+	STORE_SYNC(o0, f48)
+	FREG_FROB(f6, f8, f10,f12,f14,f16,f18,f20,f22)
+	STORE_JUMP(o0, f48, 51f)
+3:	FREG_FROB(f6, f8, f10,f12,f14,f16,f18,f20,f22)
+	STORE_SYNC(o0, f48)
+	FREG_FROB(f22,f24,f26,f28,f30,f32,f34,f36,f38)
+	STORE_JUMP(o0, f48, 59f)
+
+1:	FREG_FROB(f8, f10,f12,f14,f16,f18,f20,f22,f24)
+	LOOP_CHUNK1(o1, o0, GLOBAL_SPARE, 1f)
+	FREG_FROB(f24,f26,f28,f30,f32,f34,f36,f38,f40)
+	LOOP_CHUNK2(o1, o0, GLOBAL_SPARE, 2f)
+	FREG_FROB(f40,f42,f44,f46,f0, f2, f4, f6, f8)
+	LOOP_CHUNK3(o1, o0, GLOBAL_SPARE, 3f)
+	ba,pt		%xcc, 1b+4
+	 faligndata	%f8, %f10, %f48
+1:	FREG_FROB(f24,f26,f28,f30,f32,f34,f36,f38,f40)
+	STORE_SYNC(o0, f48)
+	FREG_FROB(f40,f42,f44,f46,f0, f2, f4, f6, f8)
+	STORE_JUMP(o0, f48, 44f)
+2:	FREG_FROB(f40,f42,f44,f46,f0, f2, f4, f6, f8)
+	STORE_SYNC(o0, f48)
+	FREG_FROB(f8, f10,f12,f14,f16,f18,f20,f22,f24)
+	STORE_JUMP(o0, f48, 52f)
+3:	FREG_FROB(f8, f10,f12,f14,f16,f18,f20,f22,f24)
+	STORE_SYNC(o0, f48)
+	FREG_FROB(f24,f26,f28,f30,f32,f34,f36,f38,f40)
+	STORE_JUMP(o0, f48, 60f)
+
+1:	FREG_FROB(f10,f12,f14,f16,f18,f20,f22,f24,f26)
+	LOOP_CHUNK1(o1, o0, GLOBAL_SPARE, 1f)
+	FREG_FROB(f26,f28,f30,f32,f34,f36,f38,f40,f42)
+	LOOP_CHUNK2(o1, o0, GLOBAL_SPARE, 2f)
+	FREG_FROB(f42,f44,f46,f0, f2, f4, f6, f8, f10)
+	LOOP_CHUNK3(o1, o0, GLOBAL_SPARE, 3f)
+	ba,pt		%xcc, 1b+4
+	 faligndata	%f10, %f12, %f48
+1:	FREG_FROB(f26,f28,f30,f32,f34,f36,f38,f40,f42)
+	STORE_SYNC(o0, f48)
+	FREG_FROB(f42,f44,f46,f0, f2, f4, f6, f8, f10)
+	STORE_JUMP(o0, f48, 45f)
+2:	FREG_FROB(f42,f44,f46,f0, f2, f4, f6, f8, f10)
+	STORE_SYNC(o0, f48)
+	FREG_FROB(f10,f12,f14,f16,f18,f20,f22,f24,f26)
+	STORE_JUMP(o0, f48, 53f)
+3:	FREG_FROB(f10,f12,f14,f16,f18,f20,f22,f24,f26)
+	STORE_SYNC(o0, f48)
+	FREG_FROB(f26,f28,f30,f32,f34,f36,f38,f40,f42)
+	STORE_JUMP(o0, f48, 61f)
+
+1:	FREG_FROB(f12,f14,f16,f18,f20,f22,f24,f26,f28)
+	LOOP_CHUNK1(o1, o0, GLOBAL_SPARE, 1f)
+	FREG_FROB(f28,f30,f32,f34,f36,f38,f40,f42,f44)
+	LOOP_CHUNK2(o1, o0, GLOBAL_SPARE, 2f)
+	FREG_FROB(f44,f46,f0, f2, f4, f6, f8, f10,f12)
+	LOOP_CHUNK3(o1, o0, GLOBAL_SPARE, 3f)
+	ba,pt		%xcc, 1b+4
+	 faligndata	%f12, %f14, %f48
+1:	FREG_FROB(f28,f30,f32,f34,f36,f38,f40,f42,f44)
+	STORE_SYNC(o0, f48)
+	FREG_FROB(f44,f46,f0, f2, f4, f6, f8, f10,f12)
+	STORE_JUMP(o0, f48, 46f)
+2:	FREG_FROB(f44,f46,f0, f2, f4, f6, f8, f10,f12)
+	STORE_SYNC(o0, f48)
+	FREG_FROB(f12,f14,f16,f18,f20,f22,f24,f26,f28)
+	STORE_JUMP(o0, f48, 54f)
+3:	FREG_FROB(f12,f14,f16,f18,f20,f22,f24,f26,f28)
+	STORE_SYNC(o0, f48)
+	FREG_FROB(f28,f30,f32,f34,f36,f38,f40,f42,f44)
+	STORE_JUMP(o0, f48, 62f)
+
+1:	FREG_FROB(f14,f16,f18,f20,f22,f24,f26,f28,f30)
+	LOOP_CHUNK1(o1, o0, GLOBAL_SPARE, 1f)
+	FREG_FROB(f30,f32,f34,f36,f38,f40,f42,f44,f46)
+	LOOP_CHUNK2(o1, o0, GLOBAL_SPARE, 2f)
+	FREG_FROB(f46,f0, f2, f4, f6, f8, f10,f12,f14)
+	LOOP_CHUNK3(o1, o0, GLOBAL_SPARE, 3f)
+	ba,pt		%xcc, 1b+4
+	 faligndata	%f14, %f16, %f48
+1:	FREG_FROB(f30,f32,f34,f36,f38,f40,f42,f44,f46)
+	STORE_SYNC(o0, f48)
+	FREG_FROB(f46,f0, f2, f4, f6, f8, f10,f12,f14)
+	STORE_JUMP(o0, f48, 47f)
+2:	FREG_FROB(f46,f0, f2, f4, f6, f8, f10,f12,f14)
+	STORE_SYNC(o0, f48)
+	FREG_FROB(f14,f16,f18,f20,f22,f24,f26,f28,f30)
+	STORE_JUMP(o0, f48, 55f)
+3:	FREG_FROB(f14,f16,f18,f20,f22,f24,f26,f28,f30)
+	STORE_SYNC(o0, f48)
+	FREG_FROB(f30,f32,f34,f36,f38,f40,f42,f44,f46)
+	STORE_JUMP(o0, f48, 63f)
+
+40:	FINISH_VISCHUNK(o0, f0,  f2,  g3)
+41:	FINISH_VISCHUNK(o0, f2,  f4,  g3)
+42:	FINISH_VISCHUNK(o0, f4,  f6,  g3)
+43:	FINISH_VISCHUNK(o0, f6,  f8,  g3)
+44:	FINISH_VISCHUNK(o0, f8,  f10, g3)
+45:	FINISH_VISCHUNK(o0, f10, f12, g3)
+46:	FINISH_VISCHUNK(o0, f12, f14, g3)
+47:	UNEVEN_VISCHUNK(o0, f14, f0,  g3)
+48:	FINISH_VISCHUNK(o0, f16, f18, g3)
+49:	FINISH_VISCHUNK(o0, f18, f20, g3)
+50:	FINISH_VISCHUNK(o0, f20, f22, g3)
+51:	FINISH_VISCHUNK(o0, f22, f24, g3)
+52:	FINISH_VISCHUNK(o0, f24, f26, g3)
+53:	FINISH_VISCHUNK(o0, f26, f28, g3)
+54:	FINISH_VISCHUNK(o0, f28, f30, g3)
+55:	UNEVEN_VISCHUNK(o0, f30, f0,  g3)
+56:	FINISH_VISCHUNK(o0, f32, f34, g3)
+57:	FINISH_VISCHUNK(o0, f34, f36, g3)
+58:	FINISH_VISCHUNK(o0, f36, f38, g3)
+59:	FINISH_VISCHUNK(o0, f38, f40, g3)
+60:	FINISH_VISCHUNK(o0, f40, f42, g3)
+61:	FINISH_VISCHUNK(o0, f42, f44, g3)
+62:	FINISH_VISCHUNK(o0, f44, f46, g3)
+63:	UNEVEN_VISCHUNK_LAST(o0, f46, f0,  g3)
+
+93:	EX_LD(LOAD(ldd, %o1, %f2))
+	add		%o1, 8, %o1
+	subcc		%g3, 8, %g3
+	faligndata	%f0, %f2, %f8
+	EX_ST(STORE(std, %f8, %o0))
+	bl,pn		%xcc, 95f
+	 add		%o0, 8, %o0
+	EX_LD(LOAD(ldd, %o1, %f0))
+	add		%o1, 8, %o1
+	subcc		%g3, 8, %g3
+	faligndata	%f2, %f0, %f8
+	EX_ST(STORE(std, %f8, %o0))
+	bge,pt		%xcc, 93b
+	 add		%o0, 8, %o0
+
+95:	brz,pt		%o2, 2f
+	 mov		%g1, %o1
+
+1:	EX_LD(LOAD(ldub, %o1, %o3))
+	add		%o1, 1, %o1
+	subcc		%o2, 1, %o2
+	EX_ST(STORE(stb, %o3, %o0))
+	bne,pt		%xcc, 1b
+	 add		%o0, 1, %o0
+
+2:	membar		#StoreLoad | #StoreStore
+	VISExit
+	retl
+	 mov		EX_RETVAL(%o4), %o0
+
+	.align		64
+70:	/* 16 < len <= (5 * 64) */
+	bne,pn		%XCC, 75f
+	 sub		%o0, %o1, %o3
+
+72:	andn		%o2, 0xf, %GLOBAL_SPARE
+	and		%o2, 0xf, %o2
+1:	EX_LD(LOAD(ldx, %o1 + 0x00, %o5))
+	EX_LD(LOAD(ldx, %o1 + 0x08, %g1))
+	subcc		%GLOBAL_SPARE, 0x10, %GLOBAL_SPARE
+	EX_ST(STORE(stx, %o5, %o1 + %o3))
+	add		%o1, 0x8, %o1
+	EX_ST(STORE(stx, %g1, %o1 + %o3))
+	bgu,pt		%XCC, 1b
+	 add		%o1, 0x8, %o1
+73:	andcc		%o2, 0x8, %g0
+	be,pt		%XCC, 1f
+	 nop
+	EX_LD(LOAD(ldx, %o1, %o5))
+	sub		%o2, 0x8, %o2
+	EX_ST(STORE(stx, %o5, %o1 + %o3))
+	add		%o1, 0x8, %o1
+1:	andcc		%o2, 0x4, %g0
+	be,pt		%XCC, 1f
+	 nop
+	EX_LD(LOAD(lduw, %o1, %o5))
+	sub		%o2, 0x4, %o2
+	EX_ST(STORE(stw, %o5, %o1 + %o3))
+	add		%o1, 0x4, %o1
+1:	cmp		%o2, 0
+	be,pt		%XCC, 85f
+	 nop
+	ba,pt		%xcc, 90f
+	 nop
+
+75:	andcc		%o0, 0x7, %g1
+	sub		%g1, 0x8, %g1
+	be,pn		%icc, 2f
+	 sub		%g0, %g1, %g1
+	sub		%o2, %g1, %o2
+
+1:	EX_LD(LOAD(ldub, %o1, %o5))
+	subcc		%g1, 1, %g1
+	EX_ST(STORE(stb, %o5, %o1 + %o3))
+	bgu,pt		%icc, 1b
+	 add		%o1, 1, %o1
+
+2:	add		%o1, %o3, %o0
+	andcc		%o1, 0x7, %g1
+	bne,pt		%icc, 8f
+	 sll		%g1, 3, %g1
+
+	cmp		%o2, 16
+	bgeu,pt		%icc, 72b
+	 nop
+	ba,a,pt		%xcc, 73b
+
+8:	mov		64, %o3
+	andn		%o1, 0x7, %o1
+	EX_LD(LOAD(ldx, %o1, %g2))
+	sub		%o3, %g1, %o3
+	andn		%o2, 0x7, %GLOBAL_SPARE
+	sllx		%g2, %g1, %g2
+1:	EX_LD(LOAD(ldx, %o1 + 0x8, %g3))
+	subcc		%GLOBAL_SPARE, 0x8, %GLOBAL_SPARE
+	add		%o1, 0x8, %o1
+	srlx		%g3, %o3, %o5
+	or		%o5, %g2, %o5
+	EX_ST(STORE(stx, %o5, %o0))
+	add		%o0, 0x8, %o0
+	bgu,pt		%icc, 1b
+	 sllx		%g3, %g1, %g2
+
+	srl		%g1, 3, %g1
+	andcc		%o2, 0x7, %o2
+	be,pn		%icc, 85f
+	 add		%o1, %g1, %o1
+	ba,pt		%xcc, 90f
+	 sub		%o0, %o1, %o3
+
+	.align		64
+80:	/* 0 < len <= 16 */
+	andcc		%o3, 0x3, %g0
+	bne,pn		%XCC, 90f
+	 sub		%o0, %o1, %o3
+
+1:	EX_LD(LOAD(lduw, %o1, %g1))
+	subcc		%o2, 4, %o2
+	EX_ST(STORE(stw, %g1, %o1 + %o3))
+	bgu,pt		%XCC, 1b
+	 add		%o1, 4, %o1
+
+85:	retl
+	 mov		EX_RETVAL(%o4), %o0
+
+	.align		32
+90:	EX_LD(LOAD(ldub, %o1, %g1))
+	subcc		%o2, 1, %o2
+	EX_ST(STORE(stb, %g1, %o1 + %o3))
+	bgu,pt		%XCC, 90b
+	 add		%o1, 1, %o1
+	retl
+	 mov		EX_RETVAL(%o4), %o0
+
+	.size		FUNC_NAME, .-FUNC_NAME