patch-2.3.45 linux/include/asm-arm/proc-armv/semaphore.h

• Lines: 118
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.3.44/linux/include/asm-arm/proc-armv/semaphore.h
• Orig date: Thu Jun 17 01:11:35 1999

diff -u --recursive --new-file v2.3.44/linux/include/asm-arm/proc-armv/semaphore.h linux/include/asm-arm/proc-armv/semaphore.h
@@ -1,117 +0,0 @@
-/*
- * linux/include/asm-arm/semaphore.h
- */
-#ifndef __ASM_PROC_SEMAPHORE_H
-#define __ASM_PROC_SEMAPHORE_H
-
-/*
- * This is ugly, but we want the default case to fall through.
- * "__down" is the actual routine that waits...
- */
-extern inline void down(struct semaphore * sem)
-{
-	unsigned int cpsr, temp;
-
-	__asm__ __volatile__ ("
-	@ atomic down operation
-	mrs	%0, cpsr
-	orr	%1, %0, #128		@ disable IRQs
-	msr	cpsr, %1
-	ldr	%1, [%2]
-	bic	%0, %0, #0x80000000	@ clear N
-	subs	%1, %1, #1
-	str	%1, [%2]
-	orrmi	%0, %0, #0x80000000	@ set N
-	msr	cpsr, %0
-	movmi	r0, %2
-	blmi	" SYMBOL_NAME_STR(__down_failed)
-		: "=&r" (cpsr), "=&r" (temp)
-		: "r" (sem)
-		: "r0", "lr", "cc");
-}
-
-/*
- * This is ugly, but we want the default case to fall through.
- * "__down_interruptible" is the actual routine that waits...
- */
-extern inline int down_interruptible (struct semaphore * sem)
-{
-	unsigned int cpsr, temp;
-
-	__asm__ __volatile__ ("
-	@ atomic down interruptible operation
-	mrs	%0, cpsr
-	orr	%1, %0, #128		@ disable IRQs
-	msr	cpsr, %1
-	ldr	%1, [%2]
-	bic	%0, %0, #0x80000000	@ clear N
-	subs	%1, %1, #1
-	str	%1, [%2]
-	orrmi	%0, %0, #0x80000000	@ set N
-	msr	cpsr, %0
-	movmi	r0, %2
-	movpl	r0, #0
-	blmi	" SYMBOL_NAME_STR(__down_interruptible_failed) "
-	mov	%1, r0"
-		: "=&r" (cpsr), "=&r" (temp)
-		: "r" (sem)
-		: "r0", "lr", "cc");
-
-	return temp;
-}
-
-extern inline int down_trylock(struct semaphore *sem)
-{
-	unsigned int cpsr, temp;
-
-	__asm__ __volatile__ ("
-	@ atomic down try lock operation
-	mrs	%0, cpsr
-	orr	%1, %0, #128		@ disable IRQs
-	msr	cpsr, %1
-	ldr	%1, [%2]
-	bic	%0, %0, #0x80000000	@ clear N
-	subs	%1, %1, #1
-	str	%1, [%2]
-	orrmi	%0, %0, #0x80000000	@ set N
-	msr	cpsr, %0
-	movmi	r0, %2
-	movpl	r0, #0
-	blmi	" SYMBOL_NAME_STR(__down_trylock_failed) "
-	mov	%1, r0"
-		: "=&r" (cpsr), "=&r" (temp)
-		: "r" (sem)
-		: "r0", "lr", "cc");
-
-	return temp;
-}
-
-/*
- * Note! This is subtle. We jump to wake people up only if
- * the semaphore was negative (== somebody was waiting on it).
- * The default case (no contention) will result in NO
- * jumps for both down() and up().
- */
-extern inline void up(struct semaphore * sem)
-{
-	unsigned int cpsr, temp;
-
-	__asm__ __volatile__ ("
-	@ atomic up operation
-	mrs	%0, cpsr
-	orr	%1, %0, #128		@ disable IRQs
-	msr	cpsr, %1
-	ldr	%1, [%2]
-	bic	%0, %0, #0x80000000	@ clear N
-	adds	%1, %1, #1
-	str	%1, [%2]
-	orrle	%0, %0, #0x80000000	@ set N
-	msr	cpsr, %0
-	movmi	r0, %2
-	blmi	" SYMBOL_NAME_STR(__up_wakeup)
-		: "=&r" (cpsr), "=&r" (temp)
-		: "r" (sem)
-		: "r0", "lr", "cc");
-}
-
-#endif