diff options
Diffstat (limited to 'arch/arc/include/asm/atomic.h')
| -rw-r--r-- | arch/arc/include/asm/atomic.h | 108 |
1 files changed, 2 insertions, 106 deletions
diff --git a/arch/arc/include/asm/atomic.h b/arch/arc/include/asm/atomic.h index c614857eb209..5afc79c9b2f5 100644 --- a/arch/arc/include/asm/atomic.h +++ b/arch/arc/include/asm/atomic.h @@ -14,8 +14,6 @@ #include <asm/barrier.h> #include <asm/smp.h> -#ifndef CONFIG_ARC_PLAT_EZNPS - #define atomic_read(v) READ_ONCE((v)->counter) #ifdef CONFIG_ARC_HAS_LLSC @@ -45,7 +43,7 @@ static inline int atomic_##op##_return(int i, atomic_t *v) \ \ /* \ * Explicit full memory barrier needed before/after as \ - * LLOCK/SCOND thmeselves don't provide any such semantics \ + * LLOCK/SCOND themselves don't provide any such semantics \ */ \ smp_mb(); \ \ @@ -71,7 +69,7 @@ static inline int atomic_fetch_##op(int i, atomic_t *v) \ \ /* \ * Explicit full memory barrier needed before/after as \ - * LLOCK/SCOND thmeselves don't provide any such semantics \ + * LLOCK/SCOND themselves don't provide any such semantics \ */ \ smp_mb(); \ \ @@ -195,108 +193,6 @@ ATOMIC_OPS(andnot, &= ~, bic) ATOMIC_OPS(or, |=, or) ATOMIC_OPS(xor, ^=, xor) -#else /* CONFIG_ARC_PLAT_EZNPS */ - -static inline int atomic_read(const atomic_t *v) -{ - int temp; - - __asm__ __volatile__( - " ld.di %0, [%1]" - : "=r"(temp) - : "r"(&v->counter) - : "memory"); - return temp; -} - -static inline void atomic_set(atomic_t *v, int i) -{ - __asm__ __volatile__( - " st.di %0,[%1]" - : - : "r"(i), "r"(&v->counter) - : "memory"); -} - -#define ATOMIC_OP(op, c_op, asm_op) \ -static inline void atomic_##op(int i, atomic_t *v) \ -{ \ - __asm__ __volatile__( \ - " mov r2, %0\n" \ - " mov r3, %1\n" \ - " .word %2\n" \ - : \ - : "r"(i), "r"(&v->counter), "i"(asm_op) \ - : "r2", "r3", "memory"); \ -} \ - -#define ATOMIC_OP_RETURN(op, c_op, asm_op) \ -static inline int atomic_##op##_return(int i, atomic_t *v) \ -{ \ - unsigned int temp = i; \ - \ - /* Explicit full memory barrier needed before/after */ \ - smp_mb(); \ - \ - __asm__ __volatile__( \ - " mov r2, %0\n" \ - " mov r3, %1\n" \ - " .word %2\n" \ - " mov %0, r2" \ - : "+r"(temp) \ - : "r"(&v->counter), "i"(asm_op) \ - : "r2", "r3", "memory"); \ - \ - smp_mb(); \ - \ - temp c_op i; \ - \ - return temp; \ -} - -#define ATOMIC_FETCH_OP(op, c_op, asm_op) \ -static inline int atomic_fetch_##op(int i, atomic_t *v) \ -{ \ - unsigned int temp = i; \ - \ - /* Explicit full memory barrier needed before/after */ \ - smp_mb(); \ - \ - __asm__ __volatile__( \ - " mov r2, %0\n" \ - " mov r3, %1\n" \ - " .word %2\n" \ - " mov %0, r2" \ - : "+r"(temp) \ - : "r"(&v->counter), "i"(asm_op) \ - : "r2", "r3", "memory"); \ - \ - smp_mb(); \ - \ - return temp; \ -} - -#define ATOMIC_OPS(op, c_op, asm_op) \ - ATOMIC_OP(op, c_op, asm_op) \ - ATOMIC_OP_RETURN(op, c_op, asm_op) \ - ATOMIC_FETCH_OP(op, c_op, asm_op) - -ATOMIC_OPS(add, +=, CTOP_INST_AADD_DI_R2_R2_R3) -#define atomic_sub(i, v) atomic_add(-(i), (v)) -#define atomic_sub_return(i, v) atomic_add_return(-(i), (v)) -#define atomic_fetch_sub(i, v) atomic_fetch_add(-(i), (v)) - -#undef ATOMIC_OPS -#define ATOMIC_OPS(op, c_op, asm_op) \ - ATOMIC_OP(op, c_op, asm_op) \ - ATOMIC_FETCH_OP(op, c_op, asm_op) - -ATOMIC_OPS(and, &=, CTOP_INST_AAND_DI_R2_R2_R3) -ATOMIC_OPS(or, |=, CTOP_INST_AOR_DI_R2_R2_R3) -ATOMIC_OPS(xor, ^=, CTOP_INST_AXOR_DI_R2_R2_R3) - -#endif /* CONFIG_ARC_PLAT_EZNPS */ - #undef ATOMIC_OPS #undef ATOMIC_FETCH_OP #undef ATOMIC_OP_RETURN |