Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-12-17 16:43:08 +00:00
Code Issues Packages Projects Releases Wiki Activity

include/asm-x86/spinlock.h: checkpatch cleanups - formatting only

Browse Source 
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Joe Perches 2008-03-23 01:03:31 -07:00 committed by Ingo Molnar
parent ceb7ce1052
commit d3bf60a6e4
1 changed files with 50 additions and 55 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

105
include/asm-x86/spinlock.h
View File

@ -82,7 +82,7 @@ static inline void __raw_spin_lock(raw_spinlock_t *lock)
{
short inc = 0x0100;
__asm__ __volatile__ (
asm volatile (
LOCK_PREFIX "xaddw %w0, %1\n"
"1:\t"
"cmpb %h0, %b0\n\t"
@ -92,9 +92,9 @@ static inline void __raw_spin_lock(raw_spinlock_t *lock)
/* don't need lfence here, because loads are in-order */
"jmp 1b\n"
"2:"
:"+Q" (inc), "+m" (lock->slock)
: "+Q" (inc), "+m" (lock->slock)
:
:"memory", "cc");
: "memory", "cc");
}
#define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock)
@ -104,30 +104,28 @@ static inline int __raw_spin_trylock(raw_spinlock_t *lock)
int tmp;
short new;
asm volatile(
"movw %2,%w0\n\t"
"cmpb %h0,%b0\n\t"
"jne 1f\n\t"
"movw %w0,%w1\n\t"
"incb %h1\n\t"
"lock ; cmpxchgw %w1,%2\n\t"
"1:"
"sete %b1\n\t"
"movzbl %b1,%0\n\t"
:"=&a" (tmp), "=Q" (new), "+m" (lock->slock)
:
: "memory", "cc");
asm volatile("movw %2,%w0\n\t"
"cmpb %h0,%b0\n\t"
"jne 1f\n\t"
"movw %w0,%w1\n\t"
"incb %h1\n\t"
"lock ; cmpxchgw %w1,%2\n\t"
"1:"
"sete %b1\n\t"
"movzbl %b1,%0\n\t"
: "=&a" (tmp), "=Q" (new), "+m" (lock->slock)
:
: "memory", "cc");
return tmp;
}
static inline void __raw_spin_unlock(raw_spinlock_t *lock)
{
__asm__ __volatile__(
UNLOCK_LOCK_PREFIX "incb %0"
:"+m" (lock->slock)
:
:"memory", "cc");
asm volatile(UNLOCK_LOCK_PREFIX "incb %0"
: "+m" (lock->slock)
:
: "memory", "cc");
}
#else
static inline int __raw_spin_is_locked(raw_spinlock_t *lock)
@ -149,21 +147,20 @@ static inline void __raw_spin_lock(raw_spinlock_t *lock)
int inc = 0x00010000;
int tmp;
__asm__ __volatile__ (
"lock ; xaddl %0, %1\n"
"movzwl %w0, %2\n\t"
"shrl $16, %0\n\t"
"1:\t"
"cmpl %0, %2\n\t"
"je 2f\n\t"
"rep ; nop\n\t"
"movzwl %1, %2\n\t"
/* don't need lfence here, because loads are in-order */
"jmp 1b\n"
"2:"
:"+Q" (inc), "+m" (lock->slock), "=r" (tmp)
:
:"memory", "cc");
asm volatile("lock ; xaddl %0, %1\n"
"movzwl %w0, %2\n\t"
"shrl $16, %0\n\t"
"1:\t"
"cmpl %0, %2\n\t"
"je 2f\n\t"
"rep ; nop\n\t"
"movzwl %1, %2\n\t"
/* don't need lfence here, because loads are in-order */
"jmp 1b\n"
"2:"
: "+Q" (inc), "+m" (lock->slock), "=r" (tmp)
:
: "memory", "cc");
}
#define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock)
@ -173,31 +170,29 @@ static inline int __raw_spin_trylock(raw_spinlock_t *lock)
int tmp;
int new;
asm volatile(
"movl %2,%0\n\t"
"movl %0,%1\n\t"
"roll $16, %0\n\t"
"cmpl %0,%1\n\t"
"jne 1f\n\t"
"addl $0x00010000, %1\n\t"
"lock ; cmpxchgl %1,%2\n\t"
"1:"
"sete %b1\n\t"
"movzbl %b1,%0\n\t"
:"=&a" (tmp), "=r" (new), "+m" (lock->slock)
:
: "memory", "cc");
asm volatile("movl %2,%0\n\t"
"movl %0,%1\n\t"
"roll $16, %0\n\t"
"cmpl %0,%1\n\t"
"jne 1f\n\t"
"addl $0x00010000, %1\n\t"
"lock ; cmpxchgl %1,%2\n\t"
"1:"
"sete %b1\n\t"
"movzbl %b1,%0\n\t"
: "=&a" (tmp), "=r" (new), "+m" (lock->slock)
:
: "memory", "cc");
return tmp;
}
static inline void __raw_spin_unlock(raw_spinlock_t *lock)
{
__asm__ __volatile__(
UNLOCK_LOCK_PREFIX "incw %0"
:"+m" (lock->slock)
:
:"memory", "cc");
asm volatile(UNLOCK_LOCK_PREFIX "incw %0"
: "+m" (lock->slock)
:
: "memory", "cc");
}
#endif