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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/m68k/lib/semaphore.S
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/m68k/lib/semaphore.S')
-rw-r--r--arch/m68k/lib/semaphore.S53
1 files changed, 53 insertions, 0 deletions
diff --git a/arch/m68k/lib/semaphore.S b/arch/m68k/lib/semaphore.S
new file mode 100644
index 000000000000..0215624c1602
--- /dev/null
+++ b/arch/m68k/lib/semaphore.S
@@ -0,0 +1,53 @@
1/*
2 * linux/arch/m68k/lib/semaphore.S
3 *
4 * Copyright (C) 1996 Linus Torvalds
5 *
6 * m68k version by Andreas Schwab
7 */
8
9#include <linux/linkage.h>
10#include <asm/semaphore.h>
11
12/*
13 * The semaphore operations have a special calling sequence that
14 * allow us to do a simpler in-line version of them. These routines
15 * need to convert that sequence back into the C sequence when
16 * there is contention on the semaphore.
17 */
18ENTRY(__down_failed)
19 moveml %a0/%d0/%d1,-(%sp)
20 movel %a1,-(%sp)
21 jbsr __down
22 movel (%sp)+,%a1
23 moveml (%sp)+,%a0/%d0/%d1
24 rts
25
26ENTRY(__down_failed_interruptible)
27 movel %a0,-(%sp)
28 movel %d1,-(%sp)
29 movel %a1,-(%sp)
30 jbsr __down_interruptible
31 movel (%sp)+,%a1
32 movel (%sp)+,%d1
33 movel (%sp)+,%a0
34 rts
35
36ENTRY(__down_failed_trylock)
37 movel %a0,-(%sp)
38 movel %d1,-(%sp)
39 movel %a1,-(%sp)
40 jbsr __down_trylock
41 movel (%sp)+,%a1
42 movel (%sp)+,%d1
43 movel (%sp)+,%a0
44 rts
45
46ENTRY(__up_wakeup)
47 moveml %a0/%d0/%d1,-(%sp)
48 movel %a1,-(%sp)
49 jbsr __up
50 movel (%sp)+,%a1
51 moveml (%sp)+,%a0/%d0/%d1
52 rts
53