Linux 4.8-rc8
[linux/fpc-iii.git] / arch / sparc / lib / U1copy_to_user.S
blob9eea392e44d471679ba85c22867a9767b34912a5
1 /* U1copy_to_user.S: UltraSparc-I/II/IIi/IIe optimized copy to userspace.
2  *
3  * Copyright (C) 1999, 2000, 2004 David S. Miller (davem@redhat.com)
4  */
6 #define EX_ST(x)                \
7 98:     x;                      \
8         .section __ex_table,"a";\
9         .align 4;               \
10         .word 98b, __retl_one;  \
11         .text;                  \
12         .align 4;
14 #define EX_ST_FP(x)             \
15 98:     x;                      \
16         .section __ex_table,"a";\
17         .align 4;               \
18         .word 98b, __retl_one_fp;\
19         .text;                  \
20         .align 4;
22 #define FUNC_NAME               ___copy_to_user
23 #define STORE(type,src,addr)    type##a src, [addr] ASI_AIUS
24 #define STORE_BLK(src,addr)     stda src, [addr] ASI_BLK_AIUS
25 #define EX_RETVAL(x)            0
27         /* Writing to %asi is _expensive_ so we hardcode it.
28          * Reading %asi to check for KERNEL_DS is comparatively
29          * cheap.
30          */
31 #define PREAMBLE                                        \
32         rd              %asi, %g1;                      \
33         cmp             %g1, ASI_AIUS;                  \
34         bne,pn          %icc, ___copy_in_user;          \
35          nop;                                           \
37 #include "U1memcpy.S"