diff options
| author | Mikael Starvik <mikael.starvik@axis.com> | 2005-07-27 11:44:42 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-07-27 16:26:01 -0700 |
| commit | 8d20a541b089ecb67a88a673548161b686ed7b85 (patch) | |
| tree | 53bac804d538068c80684becb76cd76937956502 /include/asm-cris/semaphore.h | |
| parent | 21783c9746619a782c21be606f6498bbd4d4615e (diff) | |
| download | op-kernel-dev-8d20a541b089ecb67a88a673548161b686ed7b85.zip op-kernel-dev-8d20a541b089ecb67a88a673548161b686ed7b85.tar.gz | |
[PATCH] CRIS update: SMP
Patches to support SMP.
* Each CPU has its own current_pgd.
* flush_tlb_range is implemented as flush_tlb_mm.
* Atomic operations implemented with spinlocks.
* Semaphores implemented with spinlocks.
Signed-off-by: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-cris/semaphore.h')
| -rw-r--r-- | include/asm-cris/semaphore.h | 21 |
1 files changed, 9 insertions, 12 deletions
diff --git a/include/asm-cris/semaphore.h b/include/asm-cris/semaphore.h index 605aa7e..8ed7636 100644 --- a/include/asm-cris/semaphore.h +++ b/include/asm-cris/semaphore.h @@ -72,10 +72,9 @@ extern inline void down(struct semaphore * sem) might_sleep(); /* atomically decrement the semaphores count, and if its negative, we wait */ - local_save_flags(flags); - local_irq_disable(); + cris_atomic_save(sem, flags); failed = --(sem->count.counter) < 0; - local_irq_restore(flags); + cris_atomic_restore(sem, flags); if(failed) { __down(sem); } @@ -95,10 +94,9 @@ extern inline int down_interruptible(struct semaphore * sem) might_sleep(); /* atomically decrement the semaphores count, and if its negative, we wait */ - local_save_flags(flags); - local_irq_disable(); + cris_atomic_save(sem, flags); failed = --(sem->count.counter) < 0; - local_irq_restore(flags); + cris_atomic_restore(sem, flags); if(failed) failed = __down_interruptible(sem); return(failed); @@ -109,13 +107,13 @@ extern inline int down_trylock(struct semaphore * sem) unsigned long flags; int failed; - local_save_flags(flags); - local_irq_disable(); + cris_atomic_save(sem, flags); failed = --(sem->count.counter) < 0; - local_irq_restore(flags); + cris_atomic_restore(sem, flags); if(failed) failed = __down_trylock(sem); return(failed); + } /* @@ -130,10 +128,9 @@ extern inline void up(struct semaphore * sem) int wakeup; /* atomically increment the semaphores count, and if it was negative, we wake people */ - local_save_flags(flags); - local_irq_disable(); + cris_atomic_save(sem, flags); wakeup = ++(sem->count.counter) <= 0; - local_irq_restore(flags); + cris_atomic_restore(sem, flags); if(wakeup) { __up(sem); } |
