1/* NG4copy_from_user.S: Niagara-4 optimized copy from userspace.
 2 *
 3 * Copyright (C) 2012 David S. Miller (davem@davemloft.net)
 4 */
 5
 6#define EX_LD(x, y)		\
 798:	x;			\
 8	.section __ex_table,"a";\
 9	.align 4;		\
10	.word 98b, y;		\
11	.text;			\
12	.align 4;
13
14#define EX_LD_FP(x,y)		\
1598:	x;			\
16	.section __ex_table,"a";\
17	.align 4;		\
18	.word 98b, y##_fp;	\
19	.text;			\
20	.align 4;
21
22#ifndef ASI_AIUS
23#define ASI_AIUS	0x11
24#endif
25
26#define FUNC_NAME		NG4copy_from_user
27#define LOAD(type,addr,dest)	type##a [addr] %asi, dest
28#define EX_RETVAL(x)		0
29
30#ifdef __KERNEL__
31#define PREAMBLE					\
32	rd		%asi, %g1;			\
33	cmp		%g1, ASI_AIUS;			\
34	bne,pn		%icc, ___copy_in_user;		\
35	 nop
36#endif
37
38#include "NG4memcpy.S"