| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | */ |
| 18 | ENTRY(__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 | |
| 26 | ENTRY(__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 | |
| 36 | ENTRY(__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 | |
| 46 | ENTRY(__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 | |