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)		\
798:	x;			\
8	.section __ex_table,"a";\
9	.align 4;		\
10	.word 98b, __retl_one_asi;\
11	.text;			\
12	.align 4;
13
14#ifndef ASI_AIUS
15#define ASI_AIUS	0x11
16#endif
17
18#ifndef ASI_BLK_AIUS_4V
19#define ASI_BLK_AIUS_4V	0x17
20#endif
21
22#define FUNC_NAME		NG2copy_from_user
23#define LOAD(type,addr,dest)	type##a [addr] %asi, dest
24#define LOAD_BLK(addr,dest)	ldda [addr] ASI_BLK_AIUS_4V, dest
25#define EX_RETVAL(x)		0
26
27#ifdef __KERNEL__
28#define PREAMBLE					\
29	rd		%asi, %g1;			\
30	cmp		%g1, ASI_AIUS;			\
31	bne,pn		%icc, ___copy_in_user;		\
32	 nop
33#endif
34
35#include "NG2memcpy.S"
36