| /* | |
| * 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 | |