![Jörn Engel](/assets/img/avatar_default.png)
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
67 lines
1.2 KiB
ArmAsm
67 lines
1.2 KiB
ArmAsm
/*
|
|
* 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
|
|
|