GNU Linux-libre 4.9.296-gnu1
[releases.git] / arch / sparc / lib / NG2copy_from_user.S
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)              \
7 98:     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)           \
15 98:     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, ___copy_in_user;          \
40          nop
41 #endif
42
43 #include "NG2memcpy.S"