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/U1copy_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/U1copy_from_user.S')
-rw-r--r-- | arch/sparc/lib/U1copy_from_user.S | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/sparc/lib/U1copy_from_user.S b/arch/sparc/lib/U1copy_from_user.S new file mode 100644 index 000000000000..3192b0bf4fab --- /dev/null +++ b/arch/sparc/lib/U1copy_from_user.S | |||
@@ -0,0 +1,33 @@ | |||
1 | /* U1copy_from_user.S: UltraSparc-I/II/IIi/IIe optimized copy from userspace. | ||
2 | * | ||
3 | * Copyright (C) 1999, 2000, 2004 David S. Miller (davem@redhat.com) | ||
4 | */ | ||
5 | |||
6 | #define EX_LD(x) \ | ||
7 | 98: x; \ | ||
8 | .section .fixup; \ | ||
9 | .align 4; \ | ||
10 | 99: retl; \ | ||
11 | mov 1, %o0; \ | ||
12 | .section __ex_table,"a";\ | ||
13 | .align 4; \ | ||
14 | .word 98b, 99b; \ | ||
15 | .text; \ | ||
16 | .align 4; | ||
17 | |||
18 | #define FUNC_NAME ___copy_from_user | ||
19 | #define LOAD(type,addr,dest) type##a [addr] %asi, dest | ||
20 | #define LOAD_BLK(addr,dest) ldda [addr] ASI_BLK_AIUS, dest | ||
21 | #define EX_RETVAL(x) 0 | ||
22 | |||
23 | /* Writing to %asi is _expensive_ so we hardcode it. | ||
24 | * Reading %asi to check for KERNEL_DS is comparatively | ||
25 | * cheap. | ||
26 | */ | ||
27 | #define PREAMBLE \ | ||
28 | rd %asi, %g1; \ | ||
29 | cmp %g1, ASI_AIUS; \ | ||
30 | bne,pn %icc, memcpy_user_stub; \ | ||
31 | nop; \ | ||
32 | |||
33 | #include "U1memcpy.S" | ||