1/* NG2copy_to_user.S: Niagara-2 optimized copy to userspace.
 2 *
 3 * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
 4 */
 5
 6#define EX_ST(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#ifndef ASI_BLK_INIT_QUAD_LDD_AIUS
23#define ASI_BLK_INIT_QUAD_LDD_AIUS 0x23
24#endif
25
26#define FUNC_NAME		NG2copy_to_user
27#define STORE(type,src,addr)	type##a src, [addr] ASI_AIUS
28#define STORE_ASI		ASI_BLK_INIT_QUAD_LDD_AIUS
29#define STORE_BLK(src,addr)	stda src, [addr] ASI_BLK_AIUS_4V
30#define EX_RETVAL(x)		0
31
32#ifdef __KERNEL__
33	/* Writing to %asi is _expensive_ so we hardcode it.
34	 * Reading %asi to check for KERNEL_DS is comparatively
35	 * cheap.
36	 */
37#define PREAMBLE					\
38	rd		%asi, %g1;			\
39	cmp		%g1, ASI_AIUS;			\
40	bne,pn		%icc, ___copy_in_user;		\
41	 nop
42#endif
43
44#include "NG2memcpy.S"

 1/* NG2copy_to_user.S: Niagara-2 optimized copy to userspace.
 2 *
 3 * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
 4 */
 5
 6#define EX_ST(x)		\
 798:	x;			\
 8	.section __ex_table,"a";\
 9	.align 4;		\
10	.word 98b, __retl_one_asi;\
11	.text;			\
12	.align 4;
13
14#define EX_ST_FP(x)		\
1598:	x;			\
16	.section __ex_table,"a";\
17	.align 4;		\
18	.word 98b, __retl_one_asi_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#ifndef ASI_BLK_INIT_QUAD_LDD_AIUS
31#define ASI_BLK_INIT_QUAD_LDD_AIUS 0x23
32#endif
33
34#define FUNC_NAME		NG2copy_to_user
35#define STORE(type,src,addr)	type##a src, [addr] ASI_AIUS
36#define STORE_ASI		ASI_BLK_INIT_QUAD_LDD_AIUS
37#define STORE_BLK(src,addr)	stda src, [addr] ASI_BLK_AIUS_4V
38#define EX_RETVAL(x)		0
39
40#ifdef __KERNEL__
41	/* Writing to %asi is _expensive_ so we hardcode it.
42	 * Reading %asi to check for KERNEL_DS is comparatively
43	 * cheap.
44	 */
45#define PREAMBLE					\
46	rd		%asi, %g1;			\
47	cmp		%g1, ASI_AIUS;			\
48	bne,pn		%icc, ___copy_in_user;		\
49	 nop
50#endif
51
52#include "NG2memcpy.S"