1/* NG2copy_from_user.S: Niagara-2 optimized copy from userspace.
2 *
3 * Copyright (C) 2007 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#ifndef ASI_BLK_AIUS_4V
27#define ASI_BLK_AIUS_4V	0x17
28#endif
29
30#define FUNC_NAME		NG2copy_from_user
31#define LOAD(type,addr,dest)	type##a [addr] %asi, dest
32#define LOAD_BLK(addr,dest)	ldda [addr] ASI_BLK_AIUS_4V, dest
33#define EX_RETVAL(x)		0
34
35#ifdef __KERNEL__
36#define PREAMBLE					\
37	rd		%asi, %g1;			\
38	cmp		%g1, ASI_AIUS;			\
39	bne,pn		%icc, raw_copy_in_user;		\
40	 nop
41#endif
42
43#include "NG2memcpy.S"
44