/* * Copyright 2004-2011 Analog Devices Inc. * * Licensed under the GPL-2 or later. */ #ifndef __ARCH_BLACKFIN_ATOMIC__ #define __ARCH_BLACKFIN_ATOMIC__ #include <asm/cmpxchg.h> #ifdef [31mCONFIG_SMP[0m #include <asm/barrier.h> #include <linux/linkage.h> #include <linux/types.h> asmlinkage int __raw_uncached_fetch_asm(const volatile int *ptr); asmlinkage int __raw_atomic_add_asm(volatile int *ptr, int value); asmlinkage int __raw_atomic_xadd_asm(volatile int *ptr, int value); asmlinkage int __raw_atomic_and_asm(volatile int *ptr, int value); asmlinkage int __raw_atomic_or_asm(volatile int *ptr, int value); asmlinkage int __raw_atomic_xor_asm(volatile int *ptr, int value); asmlinkage int __raw_atomic_test_asm(const volatile int *ptr, int value); #define atomic_read(v) __raw_uncached_fetch_asm(&(v)->counter) #define atomic_add_return(i, v) __raw_atomic_add_asm(&(v)->counter, i) #define atomic_sub_return(i, v) __raw_atomic_add_asm(&(v)->counter, -(i)) #define atomic_fetch_add(i, v) __raw_atomic_xadd_asm(&(v)->counter, i) #define atomic_fetch_sub(i, v) __raw_atomic_xadd_asm(&(v)->counter, -(i)) #define atomic_or(i, v) (void)__raw_atomic_or_asm(&(v)->counter, i) #define atomic_and(i, v) (void)__raw_atomic_and_asm(&(v)->counter, i) #define atomic_xor(i, v) (void)__raw_atomic_xor_asm(&(v)->counter, i) #define atomic_fetch_or(i, v) __raw_atomic_or_asm(&(v)->counter, i) #define atomic_fetch_and(i, v) __raw_atomic_and_asm(&(v)->counter, i) #define atomic_fetch_xor(i, v) __raw_atomic_xor_asm(&(v)->counter, i) #endif #include <asm-generic/atomic.h> #endif |