/* * linux/arch/m68k/lib/semaphore.S * * Copyright (C) 1996 Linus Torvalds * * m68k version by Andreas Schwab */ #include <linux/linkage.h> #include <asm/semaphore.h> /* * The semaphore operations have a special calling sequence that * allow us to do a simpler in-line version of them. These routines * need to convert that sequence back into the C sequence when * there is contention on the semaphore. */ ENTRY(__down_failed) moveml %a0/%d0/%d1,-(%sp) movel %a1,-(%sp) jbsr __down movel (%sp)+,%a1 moveml (%sp)+,%a0/%d0/%d1 rts ENTRY(__down_failed_interruptible) movel %a0,-(%sp) movel %d1,-(%sp) movel %a1,-(%sp) jbsr __down_interruptible movel (%sp)+,%a1 movel (%sp)+,%d1 movel (%sp)+,%a0 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 ENTRY(__up_wakeup) moveml %a0/%d0/%d1,-(%sp) movel %a1,-(%sp) jbsr __up movel (%sp)+,%a1 moveml (%sp)+,%a0/%d0/%d1 rts