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/U3patch.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/U3patch.S')
-rw-r--r-- | arch/sparc/lib/U3patch.S | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/sparc/lib/U3patch.S b/arch/sparc/lib/U3patch.S new file mode 100644 index 00000000000..ecc302619a6 --- /dev/null +++ b/arch/sparc/lib/U3patch.S | |||
@@ -0,0 +1,33 @@ | |||
1 | /* U3patch.S: Patch Ultra-I routines with Ultra-III variant. | ||
2 | * | ||
3 | * Copyright (C) 2004 David S. Miller <davem@redhat.com> | ||
4 | */ | ||
5 | |||
6 | #define BRANCH_ALWAYS 0x10680000 | ||
7 | #define NOP 0x01000000 | ||
8 | #define ULTRA3_DO_PATCH(OLD, NEW) \ | ||
9 | sethi %hi(NEW), %g1; \ | ||
10 | or %g1, %lo(NEW), %g1; \ | ||
11 | sethi %hi(OLD), %g2; \ | ||
12 | or %g2, %lo(OLD), %g2; \ | ||
13 | sub %g1, %g2, %g1; \ | ||
14 | sethi %hi(BRANCH_ALWAYS), %g3; \ | ||
15 | sll %g1, 11, %g1; \ | ||
16 | srl %g1, 11 + 2, %g1; \ | ||
17 | or %g3, %lo(BRANCH_ALWAYS), %g3; \ | ||
18 | or %g3, %g1, %g3; \ | ||
19 | stw %g3, [%g2]; \ | ||
20 | sethi %hi(NOP), %g3; \ | ||
21 | or %g3, %lo(NOP), %g3; \ | ||
22 | stw %g3, [%g2 + 0x4]; \ | ||
23 | flush %g2; | ||
24 | |||
25 | .globl cheetah_patch_copyops | ||
26 | .type cheetah_patch_copyops,#function | ||
27 | cheetah_patch_copyops: | ||
28 | ULTRA3_DO_PATCH(memcpy, U3memcpy) | ||
29 | ULTRA3_DO_PATCH(___copy_from_user, U3copy_from_user) | ||
30 | ULTRA3_DO_PATCH(___copy_to_user, U3copy_to_user) | ||
31 | retl | ||
32 | nop | ||
33 | .size cheetah_patch_copyops,.-cheetah_patch_copyops | ||