diff options
author | Sam Ravnborg <sam@ravnborg.org> | 2008-12-03 06:10:25 -0500 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2008-12-04 12:17:19 -0500 |
commit | 478b8fecda511942404ac232897a718cecd13e48 (patch) | |
tree | e022fce8ca92f93a000e1cd686255f0b126e9fd5 /arch/sparc/lib/NGcopy_from_user.S | |
parent | 18269c0fd4db9bec2668f895f21d742486ccb90f (diff) |
sparc,sparc64: unify lib/
o Renamed files in sparc64 to <name>_64.S when identical
to sparc32 files.
o iomap.c were equal for sparc32 and sparc64
o adjusted sparc/Makefile now we have only one lib/
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/lib/NGcopy_from_user.S')
-rw-r--r-- | arch/sparc/lib/NGcopy_from_user.S | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/sparc/lib/NGcopy_from_user.S b/arch/sparc/lib/NGcopy_from_user.S new file mode 100644 index 000000000000..e7f433f71b42 --- /dev/null +++ b/arch/sparc/lib/NGcopy_from_user.S | |||
@@ -0,0 +1,37 @@ | |||
1 | /* NGcopy_from_user.S: Niagara optimized copy from userspace. | ||
2 | * | ||
3 | * Copyright (C) 2006, 2007 David S. Miller (davem@davemloft.net) | ||
4 | */ | ||
5 | |||
6 | #define EX_LD(x) \ | ||
7 | 98: x; \ | ||
8 | .section .fixup; \ | ||
9 | .align 4; \ | ||
10 | 99: wr %g0, ASI_AIUS, %asi;\ | ||
11 | ret; \ | ||
12 | restore %g0, 1, %o0; \ | ||
13 | .section __ex_table,"a";\ | ||
14 | .align 4; \ | ||
15 | .word 98b, 99b; \ | ||
16 | .text; \ | ||
17 | .align 4; | ||
18 | |||
19 | #ifndef ASI_AIUS | ||
20 | #define ASI_AIUS 0x11 | ||
21 | #endif | ||
22 | |||
23 | #define FUNC_NAME NGcopy_from_user | ||
24 | #define LOAD(type,addr,dest) type##a [addr] ASI_AIUS, dest | ||
25 | #define LOAD_TWIN(addr_reg,dest0,dest1) \ | ||
26 | ldda [addr_reg] ASI_BLK_INIT_QUAD_LDD_AIUS, dest0 | ||
27 | #define EX_RETVAL(x) %g0 | ||
28 | |||
29 | #ifdef __KERNEL__ | ||
30 | #define PREAMBLE \ | ||
31 | rd %asi, %g1; \ | ||
32 | cmp %g1, ASI_AIUS; \ | ||
33 | bne,pn %icc, memcpy_user_stub; \ | ||
34 | nop | ||
35 | #endif | ||
36 | |||
37 | #include "NGmemcpy.S" | ||