1/*
2 *  linux/arch/m68k/lib/semaphore.S
3 *
4 *  Copyright (C) 1996  Linus Torvalds
5 *
6 *  m68k version by Andreas Schwab
7 *
8 *  MAR/1999 -- modified to support ColdFire (gerg@snapgear.com)
9 */
10
11#include <linux/linkage.h>
12#include <asm/semaphore.h>
13
14/*
15 * "down_failed" is called with the eventual return address
16 * in %a0, and the address of the semaphore in %a1. We need
17 * to increment the number of waiters on the semaphore,
18 * call "__down()", and then eventually return to try again.
19 */
20ENTRY(__down_failed)
21#ifdef CONFIG_COLDFIRE
22	subl #12,%sp
23	moveml %a0/%d0/%d1,(%sp)
24#else
25	moveml %a0/%d0/%d1,-(%sp)
26#endif
27	movel %a1,-(%sp)
28	jbsr __down
29	movel (%sp)+,%a1
30	movel (%sp)+,%d0
31	movel (%sp)+,%d1
32	rts
33
34ENTRY(__down_failed_interruptible)
35	movel %a0,-(%sp)
36	movel %d1,-(%sp)
37	movel %a1,-(%sp)
38	jbsr __down_interruptible
39	movel (%sp)+,%a1
40	movel (%sp)+,%d1
41	rts
42
43ENTRY(__up_wakeup)
44#ifdef CONFIG_COLDFIRE
45	subl #12,%sp
46	moveml %a0/%d0/%d1,(%sp)
47#else
48	moveml %a0/%d0/%d1,-(%sp)
49#endif
50	movel %a1,-(%sp)
51	jbsr __up
52	movel (%sp)+,%a1
53	movel (%sp)+,%d0
54	movel (%sp)+,%d1
55	rts
56
57ENTRY(__down_failed_trylock)
58	movel %a0,-(%sp)
59	movel %d1,-(%sp)
60	movel %a1,-(%sp)
61	jbsr __down_trylock
62	movel (%sp)+,%a1
63	movel (%sp)+,%d1
64	movel (%sp)+,%a0
65	rts
66