| /* |
| * linux/arch/m68k/lib/semaphore.S |
| * |
| * Copyright (C) 1996 Linus Torvalds |
| * |
| * m68k version by Andreas Schwab |
| * |
| * MAR/1999 -- modified to support ColdFire (gerg@snapgear.com) |
| */ |
| |
| #include <linux/linkage.h> |
| #include <asm/semaphore.h> |
| |
| /* |
| * "down_failed" is called with the eventual return address |
| * in %a0, and the address of the semaphore in %a1. We need |
| * to increment the number of waiters on the semaphore, |
| * call "__down()", and then eventually return to try again. |
| */ |
| ENTRY(__down_failed) |
| #ifdef CONFIG_COLDFIRE |
| subl #12,%sp |
| moveml %a0/%d0/%d1,(%sp) |
| #else |
| moveml %a0/%d0/%d1,-(%sp) |
| #endif |
| movel %a1,-(%sp) |
| jbsr __down |
| movel (%sp)+,%a1 |
| movel (%sp)+,%d0 |
| movel (%sp)+,%d1 |
| rts |
| |
| ENTRY(__down_failed_interruptible) |
| movel %a0,-(%sp) |
| movel %d1,-(%sp) |
| movel %a1,-(%sp) |
| jbsr __down_interruptible |
| movel (%sp)+,%a1 |
| movel (%sp)+,%d1 |
| rts |
| |
| ENTRY(__up_wakeup) |
| #ifdef CONFIG_COLDFIRE |
| subl #12,%sp |
| moveml %a0/%d0/%d1,(%sp) |
| #else |
| moveml %a0/%d0/%d1,-(%sp) |
| #endif |
| movel %a1,-(%sp) |
| jbsr __up |
| movel (%sp)+,%a1 |
| movel (%sp)+,%d0 |
| movel (%sp)+,%d1 |
| rts |
| |
| ENTRY(__down_failed_trylock) |
| movel %a0,-(%sp) |
| movel %d1,-(%sp) |
| movel %a1,-(%sp) |
| jbsr __down_trylock |
| movel (%sp)+,%a1 |
| movel (%sp)+,%d1 |
| movel (%sp)+,%a0 |
| rts |
| |
