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nexedi
linux
Commits
f4ec9516
Commit
f4ec9516
authored
Aug 13, 2002
by
Anton Blanchard
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Use HMT hints in cpu_relax
parent
b77e5d86
Changes
2
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2 changed files
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2 deletions
+2
-2
include/asm-ppc64/processor.h
include/asm-ppc64/processor.h
+1
-1
include/asm-ppc64/spinlock.h
include/asm-ppc64/spinlock.h
+1
-1
No files found.
include/asm-ppc64/processor.h
View file @
f4ec9516
...
@@ -708,7 +708,7 @@ static inline unsigned int __pack_fe01(unsigned int fpmode)
...
@@ -708,7 +708,7 @@ static inline unsigned int __pack_fe01(unsigned int fpmode)
return
((
fpmode
<<
10
)
&
MSR_FE0
)
|
((
fpmode
<<
8
)
&
MSR_FE1
);
return
((
fpmode
<<
10
)
&
MSR_FE0
)
|
((
fpmode
<<
8
)
&
MSR_FE1
);
}
}
#define cpu_relax()
barrier(
)
#define cpu_relax()
do { HMT_low(); HMT_medium(); barrier(); } while (0
)
/*
/*
* Prefetch macros.
* Prefetch macros.
...
...
include/asm-ppc64/spinlock.h
View file @
f4ec9516
...
@@ -210,7 +210,7 @@ static __inline__ int is_write_locked(rwlock_t *rw)
...
@@ -210,7 +210,7 @@ static __inline__ int is_write_locked(rwlock_t *rw)
}
}
#define spin_lock_init(x) do { *(x) = SPIN_LOCK_UNLOCKED; } while(0)
#define spin_lock_init(x) do { *(x) = SPIN_LOCK_UNLOCKED; } while(0)
#define spin_unlock_wait(x) do {
barrier
(); } while(spin_is_locked(x))
#define spin_unlock_wait(x) do {
cpu_relax
(); } while(spin_is_locked(x))
#define rwlock_init(x) do { *(x) = RW_LOCK_UNLOCKED; } while(0)
#define rwlock_init(x) do { *(x) = RW_LOCK_UNLOCKED; } while(0)
...
...
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