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author | Peter Zijlstra <peterz@infradead.org> | 2014-04-23 19:50:20 +0200 |
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committer | Thomas Gleixner <tglx@linutronix.de> | 2015-07-27 14:06:23 +0200 |
commit | ddb7573ff68964e7b3b72eeb9cde1384c4c6ba83 (patch) | |
tree | c71e6b79b6b6e089ee8667340f5f1ca3210ee8d9 /arch/mn10300/include | |
parent | mips: Provide atomic_{or,xor,and} (diff) | |
download | linux-ddb7573ff68964e7b3b72eeb9cde1384c4c6ba83.tar.xz linux-ddb7573ff68964e7b3b72eeb9cde1384c4c6ba83.zip |
mn10300: Provide atomic_{or,xor,and}
Implement atomic logic ops -- atomic_{or,xor,and}.
These will replace the atomic_{set,clear}_mask functions that are
available on some archs.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/mn10300/include')
-rw-r--r-- | arch/mn10300/include/asm/atomic.h | 57 |
1 files changed, 10 insertions, 47 deletions
diff --git a/arch/mn10300/include/asm/atomic.h b/arch/mn10300/include/asm/atomic.h index 5be655e83e70..03eea8158cf9 100644 --- a/arch/mn10300/include/asm/atomic.h +++ b/arch/mn10300/include/asm/atomic.h @@ -89,6 +89,12 @@ static inline int atomic_##op##_return(int i, atomic_t *v) \ ATOMIC_OPS(add) ATOMIC_OPS(sub) +#define CONFIG_ARCH_HAS_ATOMIC_OR + +ATOMIC_OP(and) +ATOMIC_OP(or) +ATOMIC_OP(xor) + #undef ATOMIC_OPS #undef ATOMIC_OP_RETURN #undef ATOMIC_OP @@ -134,31 +140,9 @@ static inline void atomic_dec(atomic_t *v) * * Atomically clears the bits set in mask from the memory word specified. */ -static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr) +static inline __deprecated void atomic_clear_mask(unsigned int mask, atomic_t *v) { -#ifdef CONFIG_SMP - int status; - - asm volatile( - "1: mov %3,(_AAR,%2) \n" - " mov (_ADR,%2),%0 \n" - " and %4,%0 \n" - " mov %0,(_ADR,%2) \n" - " mov (_ADR,%2),%0 \n" /* flush */ - " mov (_ASR,%2),%0 \n" - " or %0,%0 \n" - " bne 1b \n" - : "=&r"(status), "=m"(*addr) - : "a"(ATOMIC_OPS_BASE_ADDR), "r"(addr), "r"(~mask) - : "memory", "cc"); -#else - unsigned long flags; - - mask = ~mask; - flags = arch_local_cli_save(); - *addr &= mask; - arch_local_irq_restore(flags); -#endif + atomic_and(~mask, v); } /** @@ -168,30 +152,9 @@ static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr) * * Atomically sets the bits set in mask from the memory word specified. */ -static inline void atomic_set_mask(unsigned long mask, unsigned long *addr) +static inline __deprecated void atomic_set_mask(unsigned int mask, atomic_t *v) { -#ifdef CONFIG_SMP - int status; - - asm volatile( - "1: mov %3,(_AAR,%2) \n" - " mov (_ADR,%2),%0 \n" - " or %4,%0 \n" - " mov %0,(_ADR,%2) \n" - " mov (_ADR,%2),%0 \n" /* flush */ - " mov (_ASR,%2),%0 \n" - " or %0,%0 \n" - " bne 1b \n" - : "=&r"(status), "=m"(*addr) - : "a"(ATOMIC_OPS_BASE_ADDR), "r"(addr), "r"(mask) - : "memory", "cc"); -#else - unsigned long flags; - - flags = arch_local_cli_save(); - *addr |= mask; - arch_local_irq_restore(flags); -#endif + atomic_or(mask, v); } #endif /* __KERNEL__ */ |