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// SPDX-License-Identifier: GPL-2.0 // Generated by scripts/atomic/gen-atomic-fallback.sh // DO NOT MODIFY THIS FILE DIRECTLY #ifndef _LINUX_ATOMIC_FALLBACK_H #define _LINUX_ATOMIC_FALLBACK_H #ifndef xchg_relaxed #define xchg_relaxed xchg #define xchg_acquire xchg #define xchg_release xchg #else /* xchg_relaxed / #ifndef xchg_acquire #define xchg_acquire(...) \ __atomic_op_acquire(xchg, __VA_ARGS__) #endif #ifndef xchg_release #define xchg_release(...) \ __atomic_op_release(xchg, __VA_ARGS__) #endif #ifndef xchg #define xchg(...) \ __atomic_op_fence(xchg, __VA_ARGS__) #endif #endif / xchg_relaxed / #ifndef cmpxchg_relaxed #define cmpxchg_relaxed cmpxchg #define cmpxchg_acquire cmpxchg #define cmpxchg_release cmpxchg #else / cmpxchg_relaxed / #ifndef cmpxchg_acquire #define cmpxchg_acquire(...) \ __atomic_op_acquire(cmpxchg, __VA_ARGS__) #endif #ifndef cmpxchg_release #define cmpxchg_release(...) \ __atomic_op_release(cmpxchg, __VA_ARGS__) #endif #ifndef cmpxchg #define cmpxchg(...) \ __atomic_op_fence(cmpxchg, __VA_ARGS__) #endif #endif / cmpxchg_relaxed / #ifndef cmpxchg64_relaxed #define cmpxchg64_relaxed cmpxchg64 #define cmpxchg64_acquire cmpxchg64 #define cmpxchg64_release cmpxchg64 #else / cmpxchg64_relaxed / #ifndef cmpxchg64_acquire #define cmpxchg64_acquire(...) \ __atomic_op_acquire(cmpxchg64, __VA_ARGS__) #endif #ifndef cmpxchg64_release #define cmpxchg64_release(...) \ __atomic_op_release(cmpxchg64, __VA_ARGS__) #endif #ifndef cmpxchg64 #define cmpxchg64(...) \ __atomic_op_fence(cmpxchg64, __VA_ARGS__) #endif #endif / cmpxchg64_relaxed / #ifndef atomic_read_acquire static inline int atomic_read_acquire(const atomic_t v) { return smp_load_acquire(&(v)->counter); } #define atomic_read_acquire atomic_read_acquire #endif #ifndef atomic_set_release static inline void atomic_set_release(atomic_t v, int i) { smp_store_release(&(v)->counter, i); } #define atomic_set_release atomic_set_release #endif #ifndef atomic_add_return_relaxed #define atomic_add_return_acquire atomic_add_return #define atomic_add_return_release atomic_add_return #define atomic_add_return_relaxed atomic_add_return #else / atomic_add_return_relaxed / #ifndef atomic_add_return_acquire static inline int atomic_add_return_acquire(int i, atomic_t v) { int ret = atomic_add_return_relaxed(i, v); __atomic_acquire_fence(); return ret; } #define atomic_add_return_acquire atomic_add_return_acquire #endif #ifndef atomic_add_return_release static inline int atomic_add_return_release(int i, atomic_t v) { __atomic_release_fence(); return atomic_add_return_relaxed(i, v); } #define atomic_add_return_release atomic_add_return_release #endif #ifndef atomic_add_return static inline int atomic_add_return(int i, atomic_t v) { int ret; __atomic_pre_full_fence(); ret = atomic_add_return_relaxed(i, v); __atomic_post_full_fence(); return ret; } #define atomic_add_return atomic_add_return #endif #endif /* atomic_add_return_relaxed / #ifndef atomic_fetch_add_relaxed #define atomic_fetch_add_acquire atomic_fetch_add #define atomic_fetch_add_release atomic_fetch_add #define atomic_fetch_add_relaxed atomic_fetch_add #else / atomic_fetch_add_relaxed / #ifndef atomic_fetch_add_acquire static inline int atomic_fetch_add_acquire(int i, atomic_t v) { int ret = atomic_fetch_add_relaxed(i, v); __atomic_acquire_fence(); return ret; } #define atomic_fetch_add_acquire atomic_fetch_add_acquire #endif #ifndef atomic_fetch_add_release static inline int atomic_fetch_add_release(int i, atomic_t v) { __atomic_release_fence(); return atomic_fetch_add_relaxed(i, v); } #define atomic_fetch_add_release atomic_fetch_add_release #endif #ifndef atomic_fetch_add static inline int atomic_fetch_add(int i, atomic_t v) { int ret; __atomic_pre_full_fence(); ret = atomic_fetch_add_relaxed(i, v); __atomic_post_full_fence(); return ret; } #define atomic_fetch_add atomic_fetch_add #endif #endif /* atomic_fetch_add_relaxed / #ifndef atomic_sub_return_relaxed #define atomic_sub_return_acquire atomic_sub_return #define atomic_sub_return_release atomic_sub_return #define atomic_sub_return_relaxed atomic_sub_return #else / atomic_sub_return_relaxed / #ifndef atomic_sub_return_acquire static inline int atomic_sub_return_acquire(int i, atomic_t v) { int ret = atomic_sub_return_relaxed(i, v); __atomic_acquire_fence(); return ret; } #define atomic_sub_return_acquire atomic_sub_return_acquire #endif #ifndef atomic_sub_return_release static inline int atomic_sub_return_release(int i, atomic_t v) { __atomic_release_fence(); return atomic_sub_return_relaxed(i, v); } #define atomic_sub_return_release atomic_sub_return_release #endif #ifndef atomic_sub_return static inline int atomic_sub_return(int i, atomic_t v) { int ret; __atomic_pre_full_fence(); ret = atomic_sub_return_relaxed(i, v); __atomic_post_full_fence(); return ret; } #define atomic_sub_return atomic_sub_return #endif #endif /* atomic_sub_return_relaxed / #ifndef atomic_fetch_sub_relaxed #define atomic_fetch_sub_acquire atomic_fetch_sub #define atomic_fetch_sub_release atomic_fetch_sub #define atomic_fetch_sub_relaxed atomic_fetch_sub #else / atomic_fetch_sub_relaxed / #ifndef atomic_fetch_sub_acquire static inline int atomic_fetch_sub_acquire(int i, atomic_t v) { int ret = atomic_fetch_sub_relaxed(i, v); __atomic_acquire_fence(); return ret; } #define atomic_fetch_sub_acquire atomic_fetch_sub_acquire #endif #ifndef atomic_fetch_sub_release static inline int atomic_fetch_sub_release(int i, atomic_t v) { __atomic_release_fence(); return atomic_fetch_sub_relaxed(i, v); } #define atomic_fetch_sub_release atomic_fetch_sub_release #endif #ifndef atomic_fetch_sub static inline int atomic_fetch_sub(int i, atomic_t v) { int ret; __atomic_pre_full_fence(); ret = atomic_fetch_sub_relaxed(i, v); __atomic_post_full_fence(); return ret; } #define atomic_fetch_sub atomic_fetch_sub #endif #endif /* atomic_fetch_sub_relaxed / #ifndef atomic_inc static inline void atomic_inc(atomic_t v) { atomic_add(1, v); } #define atomic_inc atomic_inc #endif #ifndef atomic_inc_return_relaxed #ifdef atomic_inc_return #define atomic_inc_return_acquire atomic_inc_return #define atomic_inc_return_release atomic_inc_return #define atomic_inc_return_relaxed atomic_inc_return #endif /* atomic_inc_return / #ifndef atomic_inc_return static inline int atomic_inc_return(atomic_t v) { return atomic_add_return(1, v); } #define atomic_inc_return atomic_inc_return #endif #ifndef atomic_inc_return_acquire static inline int atomic_inc_return_acquire(atomic_t v) { return atomic_add_return_acquire(1, v); } #define atomic_inc_return_acquire atomic_inc_return_acquire #endif #ifndef atomic_inc_return_release static inline int atomic_inc_return_release(atomic_t v) { return atomic_add_return_release(1, v); } #define atomic_inc_return_release atomic_inc_return_release #endif #ifndef atomic_inc_return_relaxed static inline int atomic_inc_return_relaxed(atomic_t v) { return atomic_add_return_relaxed(1, v); } #define atomic_inc_return_relaxed atomic_inc_return_relaxed #endif #else / atomic_inc_return_relaxed / #ifndef atomic_inc_return_acquire static inline int atomic_inc_return_acquire(atomic_t v) { int ret = atomic_inc_return_relaxed(v); __atomic_acquire_fence(); return ret; } #define atomic_inc_return_acquire atomic_inc_return_acquire #endif #ifndef atomic_inc_return_release static inline int atomic_inc_return_release(atomic_t v) { __atomic_release_fence(); return atomic_inc_return_relaxed(v); } #define atomic_inc_return_release atomic_inc_return_release #endif #ifndef atomic_inc_return static inline int atomic_inc_return(atomic_t v) { int ret; __atomic_pre_full_fence(); ret = atomic_inc_return_relaxed(v); __atomic_post_full_fence(); return ret; } #define atomic_inc_return atomic_inc_return #endif #endif /* atomic_inc_return_relaxed / #ifndef atomic_fetch_inc_relaxed #ifdef atomic_fetch_inc #define atomic_fetch_inc_acquire atomic_fetch_inc #define atomic_fetch_inc_release atomic_fetch_inc #define atomic_fetch_inc_relaxed atomic_fetch_inc #endif / atomic_fetch_inc / #ifndef atomic_fetch_inc static inline int atomic_fetch_inc(atomic_t v) { return atomic_fetch_add(1, v); } #define atomic_fetch_inc atomic_fetch_inc #endif #ifndef atomic_fetch_inc_acquire static inline int atomic_fetch_inc_acquire(atomic_t v) { return atomic_fetch_add_acquire(1, v); } #define atomic_fetch_inc_acquire atomic_fetch_inc_acquire #endif #ifndef atomic_fetch_inc_release static inline int atomic_fetch_inc_release(atomic_t v) { return atomic_fetch_add_release(1, v); } #define atomic_fetch_inc_release atomic_fetch_inc_release #endif #ifndef atomic_fetch_inc_relaxed static inline int atomic_fetch_inc_relaxed(atomic_t v) { return atomic_fetch_add_relaxed(1, v); } #define atomic_fetch_inc_relaxed atomic_fetch_inc_relaxed #endif #else / atomic_fetch_inc_relaxed / #ifndef atomic_fetch_inc_acquire static inline int atomic_fetch_inc_acquire(atomic_t v) { int ret = atomic_fetch_inc_relaxed(v); __atomic_acquire_fence(); return ret; } #define atomic_fetch_inc_acquire atomic_fetch_inc_acquire #endif #ifndef atomic_fetch_inc_release static inline int atomic_fetch_inc_release(atomic_t v) { __atomic_release_fence(); return atomic_fetch_inc_relaxed(v); } #define atomic_fetch_inc_release atomic_fetch_inc_release #endif #ifndef atomic_fetch_inc static inline int atomic_fetch_inc(atomic_t v) { int ret; __atomic_pre_full_fence(); ret = atomic_fetch_inc_relaxed(v); __atomic_post_full_fence(); return ret; } #define atomic_fetch_inc atomic_fetch_inc #endif #endif /* atomic_fetch_inc_relaxed / #ifndef atomic_dec static inline void atomic_dec(atomic_t v) { atomic_sub(1, v); } #define atomic_dec atomic_dec #endif #ifndef atomic_dec_return_relaxed #ifdef atomic_dec_return #define atomic_dec_return_acquire atomic_dec_return #define atomic_dec_return_release atomic_dec_return #define atomic_dec_return_relaxed atomic_dec_return #endif /* atomic_dec_return / #ifndef atomic_dec_return static inline int atomic_dec_return(atomic_t v) { return atomic_sub_return(1, v); } #define atomic_dec_return atomic_dec_return #endif #ifndef atomic_dec_return_acquire static inline int atomic_dec_return_acquire(atomic_t v) { return atomic_sub_return_acquire(1, v); } #define atomic_dec_return_acquire atomic_dec_return_acquire #endif #ifndef atomic_dec_return_release static inline int atomic_dec_return_release(atomic_t v) { return atomic_sub_return_release(1, v); } #define atomic_dec_return_release atomic_dec_return_release #endif #ifndef atomic_dec_return_relaxed static inline int atomic_dec_return_relaxed(atomic_t v) { return atomic_sub_return_relaxed(1, v); } #define atomic_dec_return_relaxed atomic_dec_return_relaxed #endif #else / atomic_dec_return_relaxed / #ifndef atomic_dec_return_acquire static inline int atomic_dec_return_acquire(atomic_t v) { int ret = atomic_dec_return_relaxed(v); __atomic_acquire_fence(); return ret; } #define atomic_dec_return_acquire atomic_dec_return_acquire #endif #ifndef atomic_dec_return_release static inline int atomic_dec_return_release(atomic_t v) { __atomic_release_fence(); return atomic_dec_return_relaxed(v); } #define atomic_dec_return_release atomic_dec_return_release #endif #ifndef atomic_dec_return static inline int atomic_dec_return(atomic_t v) { int ret; __atomic_pre_full_fence(); ret = atomic_dec_return_relaxed(v); __atomic_post_full_fence(); return ret; } #define atomic_dec_return atomic_dec_return #endif #endif /* atomic_dec_return_relaxed / #ifndef atomic_fetch_dec_relaxed #ifdef atomic_fetch_dec #define atomic_fetch_dec_acquire atomic_fetch_dec #define atomic_fetch_dec_release atomic_fetch_dec #define atomic_fetch_dec_relaxed atomic_fetch_dec #endif / atomic_fetch_dec / #ifndef atomic_fetch_dec static inline int atomic_fetch_dec(atomic_t v) { return atomic_fetch_sub(1, v); } #define atomic_fetch_dec atomic_fetch_dec #endif #ifndef atomic_fetch_dec_acquire static inline int atomic_fetch_dec_acquire(atomic_t v) { return atomic_fetch_sub_acquire(1, v); } #define atomic_fetch_dec_acquire atomic_fetch_dec_acquire #endif #ifndef atomic_fetch_dec_release static inline int atomic_fetch_dec_release(atomic_t v) { return atomic_fetch_sub_release(1, v); } #define atomic_fetch_dec_release atomic_fetch_dec_release #endif #ifndef atomic_fetch_dec_relaxed static inline int atomic_fetch_dec_relaxed(atomic_t v) { return atomic_fetch_sub_relaxed(1, v); } #define atomic_fetch_dec_relaxed atomic_fetch_dec_relaxed #endif #else / atomic_fetch_dec_relaxed / #ifndef atomic_fetch_dec_acquire static inline int atomic_fetch_dec_acquire(atomic_t v) { int ret = atomic_fetch_dec_relaxed(v); __atomic_acquire_fence(); return ret; } #define atomic_fetch_dec_acquire atomic_fetch_dec_acquire #endif #ifndef atomic_fetch_dec_release static inline int atomic_fetch_dec_release(atomic_t v) { __atomic_release_fence(); return atomic_fetch_dec_relaxed(v); } #define atomic_fetch_dec_release atomic_fetch_dec_release #endif #ifndef atomic_fetch_dec static inline int atomic_fetch_dec(atomic_t v) { int ret; __atomic_pre_full_fence(); ret = atomic_fetch_dec_relaxed(v); __atomic_post_full_fence(); return ret; } #define atomic_fetch_dec atomic_fetch_dec #endif #endif /* atomic_fetch_dec_relaxed / #ifndef atomic_fetch_and_relaxed #define atomic_fetch_and_acquire atomic_fetch_and #define atomic_fetch_and_release atomic_fetch_and #define atomic_fetch_and_relaxed atomic_fetch_and #else / atomic_fetch_and_relaxed / #ifndef atomic_fetch_and_acquire static inline int atomic_fetch_and_acquire(int i, atomic_t v) { int ret = atomic_fetch_and_relaxed(i, v); __atomic_acquire_fence(); return ret; } #define atomic_fetch_and_acquire atomic_fetch_and_acquire #endif #ifndef atomic_fetch_and_release static inline int atomic_fetch_and_release(int i, atomic_t v) { __atomic_release_fence(); return atomic_fetch_and_relaxed(i, v); } #define atomic_fetch_and_release atomic_fetch_and_release #endif #ifndef atomic_fetch_and static inline int atomic_fetch_and(int i, atomic_t v) { int ret; __atomic_pre_full_fence(); ret = atomic_fetch_and_relaxed(i, v); __atomic_post_full_fence(); return ret; } #define atomic_fetch_and atomic_fetch_and #endif #endif /* atomic_fetch_and_relaxed / #ifndef atomic_andnot static inline void atomic_andnot(int i, atomic_t v) { atomic_and(~i, v); } #define atomic_andnot atomic_andnot #endif #ifndef atomic_fetch_andnot_relaxed #ifdef atomic_fetch_andnot #define atomic_fetch_andnot_acquire atomic_fetch_andnot #define atomic_fetch_andnot_release atomic_fetch_andnot #define atomic_fetch_andnot_relaxed atomic_fetch_andnot #endif /* atomic_fetch_andnot / #ifndef atomic_fetch_andnot static inline int atomic_fetch_andnot(int i, atomic_t v) { return atomic_fetch_and(~i, v); } #define atomic_fetch_andnot atomic_fetch_andnot #endif #ifndef atomic_fetch_andnot_acquire static inline int atomic_fetch_andnot_acquire(int i, atomic_t v) { return atomic_fetch_and_acquire(~i, v); } #define atomic_fetch_andnot_acquire atomic_fetch_andnot_acquire #endif #ifndef atomic_fetch_andnot_release static inline int atomic_fetch_andnot_release(int i, atomic_t v) { return atomic_fetch_and_release(~i, v); } #define atomic_fetch_andnot_release atomic_fetch_andnot_release #endif #ifndef atomic_fetch_andnot_relaxed static inline int atomic_fetch_andnot_relaxed(int i, atomic_t v) { return atomic_fetch_and_relaxed(~i, v); } #define atomic_fetch_andnot_relaxed atomic_fetch_andnot_relaxed #endif #else / atomic_fetch_andnot_relaxed / #ifndef atomic_fetch_andnot_acquire static inline int atomic_fetch_andnot_acquire(int i, atomic_t v) { int ret = atomic_fetch_andnot_relaxed(i, v); __atomic_acquire_fence(); return ret; } #define atomic_fetch_andnot_acquire atomic_fetch_andnot_acquire #endif #ifndef atomic_fetch_andnot_release static inline int atomic_fetch_andnot_release(int i, atomic_t v) { __atomic_release_fence(); return atomic_fetch_andnot_relaxed(i, v); } #define atomic_fetch_andnot_release atomic_fetch_andnot_release #endif #ifndef atomic_fetch_andnot static inline int atomic_fetch_andnot(int i, atomic_t v) { int ret; __atomic_pre_full_fence(); ret = atomic_fetch_andnot_relaxed(i, v); __atomic_post_full_fence(); return ret; } #define atomic_fetch_andnot atomic_fetch_andnot #endif #endif /* atomic_fetch_andnot_relaxed / #ifndef atomic_fetch_or_relaxed #define atomic_fetch_or_acquire atomic_fetch_or #define atomic_fetch_or_release atomic_fetch_or #define atomic_fetch_or_relaxed atomic_fetch_or #else / atomic_fetch_or_relaxed / #ifndef atomic_fetch_or_acquire static inline int atomic_fetch_or_acquire(int i, atomic_t v) { int ret = atomic_fetch_or_relaxed(i, v); __atomic_acquire_fence(); return ret; } #define atomic_fetch_or_acquire atomic_fetch_or_acquire #endif #ifndef atomic_fetch_or_release static inline int atomic_fetch_or_release(int i, atomic_t v) { __atomic_release_fence(); return atomic_fetch_or_relaxed(i, v); } #define atomic_fetch_or_release atomic_fetch_or_release #endif #ifndef atomic_fetch_or static inline int atomic_fetch_or(int i, atomic_t v) { int ret; __atomic_pre_full_fence(); ret = atomic_fetch_or_relaxed(i, v); __atomic_post_full_fence(); return ret; } #define atomic_fetch_or atomic_fetch_or #endif #endif /* atomic_fetch_or_relaxed / #ifndef atomic_fetch_xor_relaxed #define atomic_fetch_xor_acquire atomic_fetch_xor #define atomic_fetch_xor_release atomic_fetch_xor #define atomic_fetch_xor_relaxed atomic_fetch_xor #else / atomic_fetch_xor_relaxed / #ifndef atomic_fetch_xor_acquire static inline int atomic_fetch_xor_acquire(int i, atomic_t v) { int ret = atomic_fetch_xor_relaxed(i, v); __atomic_acquire_fence(); return ret; } #define atomic_fetch_xor_acquire atomic_fetch_xor_acquire #endif #ifndef atomic_fetch_xor_release static inline int atomic_fetch_xor_release(int i, atomic_t v) { __atomic_release_fence(); return atomic_fetch_xor_relaxed(i, v); } #define atomic_fetch_xor_release atomic_fetch_xor_release #endif #ifndef atomic_fetch_xor static inline int atomic_fetch_xor(int i, atomic_t v) { int ret; __atomic_pre_full_fence(); ret = atomic_fetch_xor_relaxed(i, v); __atomic_post_full_fence(); return ret; } #define atomic_fetch_xor atomic_fetch_xor #endif #endif /* atomic_fetch_xor_relaxed / #ifndef atomic_xchg_relaxed #define atomic_xchg_acquire atomic_xchg #define atomic_xchg_release atomic_xchg #define atomic_xchg_relaxed atomic_xchg #else / atomic_xchg_relaxed / #ifndef atomic_xchg_acquire static inline int atomic_xchg_acquire(atomic_t v, int i) { int ret = atomic_xchg_relaxed(v, i); __atomic_acquire_fence(); return ret; } #define atomic_xchg_acquire atomic_xchg_acquire #endif #ifndef atomic_xchg_release static inline int atomic_xchg_release(atomic_t v, int i) { __atomic_release_fence(); return atomic_xchg_relaxed(v, i); } #define atomic_xchg_release atomic_xchg_release #endif #ifndef atomic_xchg static inline int atomic_xchg(atomic_t v, int i) { int ret; __atomic_pre_full_fence(); ret = atomic_xchg_relaxed(v, i); __atomic_post_full_fence(); return ret; } #define atomic_xchg atomic_xchg #endif #endif /* atomic_xchg_relaxed / #ifndef atomic_cmpxchg_relaxed #define atomic_cmpxchg_acquire atomic_cmpxchg #define atomic_cmpxchg_release atomic_cmpxchg #define atomic_cmpxchg_relaxed atomic_cmpxchg #else / atomic_cmpxchg_relaxed / #ifndef atomic_cmpxchg_acquire static inline int atomic_cmpxchg_acquire(atomic_t v, int old, int new) { int ret = atomic_cmpxchg_relaxed(v, old, new); __atomic_acquire_fence(); return ret; } #define atomic_cmpxchg_acquire atomic_cmpxchg_acquire #endif #ifndef atomic_cmpxchg_release static inline int atomic_cmpxchg_release(atomic_t v, int old, int new) { __atomic_release_fence(); return atomic_cmpxchg_relaxed(v, old, new); } #define atomic_cmpxchg_release atomic_cmpxchg_release #endif #ifndef atomic_cmpxchg static inline int atomic_cmpxchg(atomic_t v, int old, int new) { int ret; __atomic_pre_full_fence(); ret = atomic_cmpxchg_relaxed(v, old, new); __atomic_post_full_fence(); return ret; } #define atomic_cmpxchg atomic_cmpxchg #endif #endif /* atomic_cmpxchg_relaxed / #ifndef atomic_try_cmpxchg_relaxed #ifdef atomic_try_cmpxchg #define atomic_try_cmpxchg_acquire atomic_try_cmpxchg #define atomic_try_cmpxchg_release atomic_try_cmpxchg #define atomic_try_cmpxchg_relaxed atomic_try_cmpxchg #endif / atomic_try_cmpxchg / #ifndef atomic_try_cmpxchg static inline bool atomic_try_cmpxchg(atomic_t v, int old, int new) { int r, o = old; r = atomic_cmpxchg(v, o, new); if (unlikely(r != o)) old = r; return likely(r == o); } #define atomic_try_cmpxchg atomic_try_cmpxchg #endif #ifndef atomic_try_cmpxchg_acquire static inline bool atomic_try_cmpxchg_acquire(atomic_t v, int old, int new) { int r, o = old; r = atomic_cmpxchg_acquire(v, o, new); if (unlikely(r != o)) old = r; return likely(r == o); } #define atomic_try_cmpxchg_acquire atomic_try_cmpxchg_acquire #endif #ifndef atomic_try_cmpxchg_release static inline bool atomic_try_cmpxchg_release(atomic_t v, int old, int new) { int r, o = old; r = atomic_cmpxchg_release(v, o, new); if (unlikely(r != o)) old = r; return likely(r == o); } #define atomic_try_cmpxchg_release atomic_try_cmpxchg_release #endif #ifndef atomic_try_cmpxchg_relaxed static inline bool atomic_try_cmpxchg_relaxed(atomic_t v, int old, int new) { int r, o = old; r = atomic_cmpxchg_relaxed(v, o, new); if (unlikely(r != o)) old = r; return likely(r == o); } #define atomic_try_cmpxchg_relaxed atomic_try_cmpxchg_relaxed #endif #else / atomic_try_cmpxchg_relaxed / #ifndef atomic_try_cmpxchg_acquire static inline bool atomic_try_cmpxchg_acquire(atomic_t v, int old, int new) { bool ret = atomic_try_cmpxchg_relaxed(v, old, new); __atomic_acquire_fence(); return ret; } #define atomic_try_cmpxchg_acquire atomic_try_cmpxchg_acquire #endif #ifndef atomic_try_cmpxchg_release static inline bool atomic_try_cmpxchg_release(atomic_t v, int old, int new) { __atomic_release_fence(); return atomic_try_cmpxchg_relaxed(v, old, new); } #define atomic_try_cmpxchg_release atomic_try_cmpxchg_release #endif #ifndef atomic_try_cmpxchg static inline bool atomic_try_cmpxchg(atomic_t v, int old, int new) { bool ret; __atomic_pre_full_fence(); ret = atomic_try_cmpxchg_relaxed(v, old, new); __atomic_post_full_fence(); return ret; } #define atomic_try_cmpxchg atomic_try_cmpxchg #endif #endif / atomic_try_cmpxchg_relaxed / #ifndef atomic_sub_and_test /* * atomic_sub_and_test - subtract value from variable and test result * @i: integer value to subtract * @v: pointer of type atomic_t * * Atomically subtracts @i from @v and returns * true if the result is zero, or false for all * other cases. / static inline bool atomic_sub_and_test(int i, atomic_t v) { return atomic_sub_return(i, v) == 0; } #define atomic_sub_and_test atomic_sub_and_test #endif #ifndef atomic_dec_and_test /** * atomic_dec_and_test - decrement and test * @v: pointer of type atomic_t * * Atomically decrements @v by 1 and * returns true if the result is 0, or false for all other * cases. / static inline bool atomic_dec_and_test(atomic_t v) { return atomic_dec_return(v) == 0; } #define atomic_dec_and_test atomic_dec_and_test #endif #ifndef atomic_inc_and_test /** * atomic_inc_and_test - increment and test * @v: pointer of type atomic_t * * Atomically increments @v by 1 * and returns true if the result is zero, or false for all * other cases. / static inline bool atomic_inc_and_test(atomic_t v) { return atomic_inc_return(v) == 0; } #define atomic_inc_and_test atomic_inc_and_test #endif #ifndef atomic_add_negative /** * atomic_add_negative - add and test if negative * @i: integer value to add * @v: pointer of type atomic_t * * Atomically adds @i to @v and returns true * if the result is negative, or false when * result is greater than or equal to zero. / static inline bool atomic_add_negative(int i, atomic_t v) { return atomic_add_return(i, v) < 0; } #define atomic_add_negative atomic_add_negative #endif #ifndef atomic_fetch_add_unless /** * atomic_fetch_add_unless - add unless the number is already a given value * @v: pointer of type atomic_t * @a: the amount to add to v... * @u: ...unless v is equal to u. * * Atomically adds @a to @v, so long as @v was not already @u. * Returns original value of @v / static inline int atomic_fetch_add_unless(atomic_t v, int a, int u) { int c = atomic_read(v); do { if (unlikely(c == u)) break; } while (!atomic_try_cmpxchg(v, &c, c + a)); return c; } #define atomic_fetch_add_unless atomic_fetch_add_unless #endif #ifndef atomic_add_unless /** * atomic_add_unless - add unless the number is already a given value * @v: pointer of type atomic_t * @a: the amount to add to v... * @u: ...unless v is equal to u. * * Atomically adds @a to @v, if @v was not already @u. * Returns true if the addition was done. / static inline bool atomic_add_unless(atomic_t v, int a, int u) { return atomic_fetch_add_unless(v, a, u) != u; } #define atomic_add_unless atomic_add_unless #endif #ifndef atomic_inc_not_zero /** * atomic_inc_not_zero - increment unless the number is zero * @v: pointer of type atomic_t * * Atomically increments @v by 1, if @v is non-zero. * Returns true if the increment was done. / static inline bool atomic_inc_not_zero(atomic_t v) { return atomic_add_unless(v, 1, 0); } #define atomic_inc_not_zero atomic_inc_not_zero #endif #ifndef atomic_inc_unless_negative static inline bool atomic_inc_unless_negative(atomic_t v) { int c = atomic_read(v); do { if (unlikely(c < 0)) return false; } while (!atomic_try_cmpxchg(v, &c, c + 1)); return true; } #define atomic_inc_unless_negative atomic_inc_unless_negative #endif #ifndef atomic_dec_unless_positive static inline bool atomic_dec_unless_positive(atomic_t v) { int c = atomic_read(v); do { if (unlikely(c > 0)) return false; } while (!atomic_try_cmpxchg(v, &c, c - 1)); return true; } #define atomic_dec_unless_positive atomic_dec_unless_positive #endif #ifndef atomic_dec_if_positive static inline int atomic_dec_if_positive(atomic_t v) { int dec, c = atomic_read(v); do { dec = c - 1; if (unlikely(dec < 0)) break; } while (!atomic_try_cmpxchg(v, &c, dec)); return dec; } #define atomic_dec_if_positive atomic_dec_if_positive #endif #define atomic_cond_read_acquire(v, c) smp_cond_load_acquire(&(v)->counter, (c)) #define atomic_cond_read_relaxed(v, c) smp_cond_load_relaxed(&(v)->counter, (c)) #ifdef CONFIG_GENERIC_ATOMIC64 #include <asm-generic/atomic64.h> #endif #ifndef atomic64_read_acquire static inline s64 atomic64_read_acquire(const atomic64_t v) { return smp_load_acquire(&(v)->counter); } #define atomic64_read_acquire atomic64_read_acquire #endif #ifndef atomic64_set_release static inline void atomic64_set_release(atomic64_t v, s64 i) { smp_store_release(&(v)->counter, i); } #define atomic64_set_release atomic64_set_release #endif #ifndef atomic64_add_return_relaxed #define atomic64_add_return_acquire atomic64_add_return #define atomic64_add_return_release atomic64_add_return #define atomic64_add_return_relaxed atomic64_add_return #else / atomic64_add_return_relaxed / #ifndef atomic64_add_return_acquire static inline s64 atomic64_add_return_acquire(s64 i, atomic64_t v) { s64 ret = atomic64_add_return_relaxed(i, v); __atomic_acquire_fence(); return ret; } #define atomic64_add_return_acquire atomic64_add_return_acquire #endif #ifndef atomic64_add_return_release static inline s64 atomic64_add_return_release(s64 i, atomic64_t v) { __atomic_release_fence(); return atomic64_add_return_relaxed(i, v); } #define atomic64_add_return_release atomic64_add_return_release #endif #ifndef atomic64_add_return static inline s64 atomic64_add_return(s64 i, atomic64_t v) { s64 ret; __atomic_pre_full_fence(); ret = atomic64_add_return_relaxed(i, v); __atomic_post_full_fence(); return ret; } #define atomic64_add_return atomic64_add_return #endif #endif /* atomic64_add_return_relaxed / #ifndef atomic64_fetch_add_relaxed #define atomic64_fetch_add_acquire atomic64_fetch_add #define atomic64_fetch_add_release atomic64_fetch_add #define atomic64_fetch_add_relaxed atomic64_fetch_add #else / atomic64_fetch_add_relaxed / #ifndef atomic64_fetch_add_acquire static inline s64 atomic64_fetch_add_acquire(s64 i, atomic64_t v) { s64 ret = atomic64_fetch_add_relaxed(i, v); __atomic_acquire_fence(); return ret; } #define atomic64_fetch_add_acquire atomic64_fetch_add_acquire #endif #ifndef atomic64_fetch_add_release static inline s64 atomic64_fetch_add_release(s64 i, atomic64_t v) { __atomic_release_fence(); return atomic64_fetch_add_relaxed(i, v); } #define atomic64_fetch_add_release atomic64_fetch_add_release #endif #ifndef atomic64_fetch_add static inline s64 atomic64_fetch_add(s64 i, atomic64_t v) { s64 ret; __atomic_pre_full_fence(); ret = atomic64_fetch_add_relaxed(i, v); __atomic_post_full_fence(); return ret; } #define atomic64_fetch_add atomic64_fetch_add #endif #endif /* atomic64_fetch_add_relaxed / #ifndef atomic64_sub_return_relaxed #define atomic64_sub_return_acquire atomic64_sub_return #define atomic64_sub_return_release atomic64_sub_return #define atomic64_sub_return_relaxed atomic64_sub_return #else / atomic64_sub_return_relaxed / #ifndef atomic64_sub_return_acquire static inline s64 atomic64_sub_return_acquire(s64 i, atomic64_t v) { s64 ret = atomic64_sub_return_relaxed(i, v); __atomic_acquire_fence(); return ret; } #define atomic64_sub_return_acquire atomic64_sub_return_acquire #endif #ifndef atomic64_sub_return_release static inline s64 atomic64_sub_return_release(s64 i, atomic64_t v) { __atomic_release_fence(); return atomic64_sub_return_relaxed(i, v); } #define atomic64_sub_return_release atomic64_sub_return_release #endif #ifndef atomic64_sub_return static inline s64 atomic64_sub_return(s64 i, atomic64_t v) { s64 ret; __atomic_pre_full_fence(); ret = atomic64_sub_return_relaxed(i, v); __atomic_post_full_fence(); return ret; } #define atomic64_sub_return atomic64_sub_return #endif #endif /* atomic64_sub_return_relaxed / #ifndef atomic64_fetch_sub_relaxed #define atomic64_fetch_sub_acquire atomic64_fetch_sub #define atomic64_fetch_sub_release atomic64_fetch_sub #define atomic64_fetch_sub_relaxed atomic64_fetch_sub #else / atomic64_fetch_sub_relaxed / #ifndef atomic64_fetch_sub_acquire static inline s64 atomic64_fetch_sub_acquire(s64 i, atomic64_t v) { s64 ret = atomic64_fetch_sub_relaxed(i, v); __atomic_acquire_fence(); return ret; } #define atomic64_fetch_sub_acquire atomic64_fetch_sub_acquire #endif #ifndef atomic64_fetch_sub_release static inline s64 atomic64_fetch_sub_release(s64 i, atomic64_t v) { __atomic_release_fence(); return atomic64_fetch_sub_relaxed(i, v); } #define atomic64_fetch_sub_release atomic64_fetch_sub_release #endif #ifndef atomic64_fetch_sub static inline s64 atomic64_fetch_sub(s64 i, atomic64_t v) { s64 ret; __atomic_pre_full_fence(); ret = atomic64_fetch_sub_relaxed(i, v); __atomic_post_full_fence(); return ret; } #define atomic64_fetch_sub atomic64_fetch_sub #endif #endif /* atomic64_fetch_sub_relaxed / #ifndef atomic64_inc static inline void atomic64_inc(atomic64_t v) { atomic64_add(1, v); } #define atomic64_inc atomic64_inc #endif #ifndef atomic64_inc_return_relaxed #ifdef atomic64_inc_return #define atomic64_inc_return_acquire atomic64_inc_return #define atomic64_inc_return_release atomic64_inc_return #define atomic64_inc_return_relaxed atomic64_inc_return #endif /* atomic64_inc_return / #ifndef atomic64_inc_return static inline s64 atomic64_inc_return(atomic64_t v) { return atomic64_add_return(1, v); } #define atomic64_inc_return atomic64_inc_return #endif #ifndef atomic64_inc_return_acquire static inline s64 atomic64_inc_return_acquire(atomic64_t v) { return atomic64_add_return_acquire(1, v); } #define atomic64_inc_return_acquire atomic64_inc_return_acquire #endif #ifndef atomic64_inc_return_release static inline s64 atomic64_inc_return_release(atomic64_t v) { return atomic64_add_return_release(1, v); } #define atomic64_inc_return_release atomic64_inc_return_release #endif #ifndef atomic64_inc_return_relaxed static inline s64 atomic64_inc_return_relaxed(atomic64_t v) { return atomic64_add_return_relaxed(1, v); } #define atomic64_inc_return_relaxed atomic64_inc_return_relaxed #endif #else / atomic64_inc_return_relaxed / #ifndef atomic64_inc_return_acquire static inline s64 atomic64_inc_return_acquire(atomic64_t v) { s64 ret = atomic64_inc_return_relaxed(v); __atomic_acquire_fence(); return ret; } #define atomic64_inc_return_acquire atomic64_inc_return_acquire #endif #ifndef atomic64_inc_return_release static inline s64 atomic64_inc_return_release(atomic64_t v) { __atomic_release_fence(); return atomic64_inc_return_relaxed(v); } #define atomic64_inc_return_release atomic64_inc_return_release #endif #ifndef atomic64_inc_return static inline s64 atomic64_inc_return(atomic64_t v) { s64 ret; __atomic_pre_full_fence(); ret = atomic64_inc_return_relaxed(v); __atomic_post_full_fence(); return ret; } #define atomic64_inc_return atomic64_inc_return #endif #endif /* atomic64_inc_return_relaxed / #ifndef atomic64_fetch_inc_relaxed #ifdef atomic64_fetch_inc #define atomic64_fetch_inc_acquire atomic64_fetch_inc #define atomic64_fetch_inc_release atomic64_fetch_inc #define atomic64_fetch_inc_relaxed atomic64_fetch_inc #endif / atomic64_fetch_inc / #ifndef atomic64_fetch_inc static inline s64 atomic64_fetch_inc(atomic64_t v) { return atomic64_fetch_add(1, v); } #define atomic64_fetch_inc atomic64_fetch_inc #endif #ifndef atomic64_fetch_inc_acquire static inline s64 atomic64_fetch_inc_acquire(atomic64_t v) { return atomic64_fetch_add_acquire(1, v); } #define atomic64_fetch_inc_acquire atomic64_fetch_inc_acquire #endif #ifndef atomic64_fetch_inc_release static inline s64 atomic64_fetch_inc_release(atomic64_t v) { return atomic64_fetch_add_release(1, v); } #define atomic64_fetch_inc_release atomic64_fetch_inc_release #endif #ifndef atomic64_fetch_inc_relaxed static inline s64 atomic64_fetch_inc_relaxed(atomic64_t v) { return atomic64_fetch_add_relaxed(1, v); } #define atomic64_fetch_inc_relaxed atomic64_fetch_inc_relaxed #endif #else / atomic64_fetch_inc_relaxed / #ifndef atomic64_fetch_inc_acquire static inline s64 atomic64_fetch_inc_acquire(atomic64_t v) { s64 ret = atomic64_fetch_inc_relaxed(v); __atomic_acquire_fence(); return ret; } #define atomic64_fetch_inc_acquire atomic64_fetch_inc_acquire #endif #ifndef atomic64_fetch_inc_release static inline s64 atomic64_fetch_inc_release(atomic64_t v) { __atomic_release_fence(); return atomic64_fetch_inc_relaxed(v); } #define atomic64_fetch_inc_release atomic64_fetch_inc_release #endif #ifndef atomic64_fetch_inc static inline s64 atomic64_fetch_inc(atomic64_t v) { s64 ret; __atomic_pre_full_fence(); ret = atomic64_fetch_inc_relaxed(v); __atomic_post_full_fence(); return ret; } #define atomic64_fetch_inc atomic64_fetch_inc #endif #endif /* atomic64_fetch_inc_relaxed / #ifndef atomic64_dec static inline void atomic64_dec(atomic64_t v) { atomic64_sub(1, v); } #define atomic64_dec atomic64_dec #endif #ifndef atomic64_dec_return_relaxed #ifdef atomic64_dec_return #define atomic64_dec_return_acquire atomic64_dec_return #define atomic64_dec_return_release atomic64_dec_return #define atomic64_dec_return_relaxed atomic64_dec_return #endif /* atomic64_dec_return / #ifndef atomic64_dec_return static inline s64 atomic64_dec_return(atomic64_t v) { return atomic64_sub_return(1, v); } #define atomic64_dec_return atomic64_dec_return #endif #ifndef atomic64_dec_return_acquire static inline s64 atomic64_dec_return_acquire(atomic64_t v) { return atomic64_sub_return_acquire(1, v); } #define atomic64_dec_return_acquire atomic64_dec_return_acquire #endif #ifndef atomic64_dec_return_release static inline s64 atomic64_dec_return_release(atomic64_t v) { return atomic64_sub_return_release(1, v); } #define atomic64_dec_return_release atomic64_dec_return_release #endif #ifndef atomic64_dec_return_relaxed static inline s64 atomic64_dec_return_relaxed(atomic64_t v) { return atomic64_sub_return_relaxed(1, v); } #define atomic64_dec_return_relaxed atomic64_dec_return_relaxed #endif #else / atomic64_dec_return_relaxed / #ifndef atomic64_dec_return_acquire static inline s64 atomic64_dec_return_acquire(atomic64_t v) { s64 ret = atomic64_dec_return_relaxed(v); __atomic_acquire_fence(); return ret; } #define atomic64_dec_return_acquire atomic64_dec_return_acquire #endif #ifndef atomic64_dec_return_release static inline s64 atomic64_dec_return_release(atomic64_t v) { __atomic_release_fence(); return atomic64_dec_return_relaxed(v); } #define atomic64_dec_return_release atomic64_dec_return_release #endif #ifndef atomic64_dec_return static inline s64 atomic64_dec_return(atomic64_t v) { s64 ret; __atomic_pre_full_fence(); ret = atomic64_dec_return_relaxed(v); __atomic_post_full_fence(); return ret; } #define atomic64_dec_return atomic64_dec_return #endif #endif /* atomic64_dec_return_relaxed / #ifndef atomic64_fetch_dec_relaxed #ifdef atomic64_fetch_dec #define atomic64_fetch_dec_acquire atomic64_fetch_dec #define atomic64_fetch_dec_release atomic64_fetch_dec #define atomic64_fetch_dec_relaxed atomic64_fetch_dec #endif / atomic64_fetch_dec / #ifndef atomic64_fetch_dec static inline s64 atomic64_fetch_dec(atomic64_t v) { return atomic64_fetch_sub(1, v); } #define atomic64_fetch_dec atomic64_fetch_dec #endif #ifndef atomic64_fetch_dec_acquire static inline s64 atomic64_fetch_dec_acquire(atomic64_t v) { return atomic64_fetch_sub_acquire(1, v); } #define atomic64_fetch_dec_acquire atomic64_fetch_dec_acquire #endif #ifndef atomic64_fetch_dec_release static inline s64 atomic64_fetch_dec_release(atomic64_t v) { return atomic64_fetch_sub_release(1, v); } #define atomic64_fetch_dec_release atomic64_fetch_dec_release #endif #ifndef atomic64_fetch_dec_relaxed static inline s64 atomic64_fetch_dec_relaxed(atomic64_t v) { return atomic64_fetch_sub_relaxed(1, v); } #define atomic64_fetch_dec_relaxed atomic64_fetch_dec_relaxed #endif #else / atomic64_fetch_dec_relaxed / #ifndef atomic64_fetch_dec_acquire static inline s64 atomic64_fetch_dec_acquire(atomic64_t v) { s64 ret = atomic64_fetch_dec_relaxed(v); __atomic_acquire_fence(); return ret; } #define atomic64_fetch_dec_acquire atomic64_fetch_dec_acquire #endif #ifndef atomic64_fetch_dec_release static inline s64 atomic64_fetch_dec_release(atomic64_t v) { __atomic_release_fence(); return atomic64_fetch_dec_relaxed(v); } #define atomic64_fetch_dec_release atomic64_fetch_dec_release #endif #ifndef atomic64_fetch_dec static inline s64 atomic64_fetch_dec(atomic64_t v) { s64 ret; __atomic_pre_full_fence(); ret = atomic64_fetch_dec_relaxed(v); __atomic_post_full_fence(); return ret; } #define atomic64_fetch_dec atomic64_fetch_dec #endif #endif /* atomic64_fetch_dec_relaxed / #ifndef atomic64_fetch_and_relaxed #define atomic64_fetch_and_acquire atomic64_fetch_and #define atomic64_fetch_and_release atomic64_fetch_and #define atomic64_fetch_and_relaxed atomic64_fetch_and #else / atomic64_fetch_and_relaxed / #ifndef atomic64_fetch_and_acquire static inline s64 atomic64_fetch_and_acquire(s64 i, atomic64_t v) { s64 ret = atomic64_fetch_and_relaxed(i, v); __atomic_acquire_fence(); return ret; } #define atomic64_fetch_and_acquire atomic64_fetch_and_acquire #endif #ifndef atomic64_fetch_and_release static inline s64 atomic64_fetch_and_release(s64 i, atomic64_t v) { __atomic_release_fence(); return atomic64_fetch_and_relaxed(i, v); } #define atomic64_fetch_and_release atomic64_fetch_and_release #endif #ifndef atomic64_fetch_and static inline s64 atomic64_fetch_and(s64 i, atomic64_t v) { s64 ret; __atomic_pre_full_fence(); ret = atomic64_fetch_and_relaxed(i, v); __atomic_post_full_fence(); return ret; } #define atomic64_fetch_and atomic64_fetch_and #endif #endif /* atomic64_fetch_and_relaxed / #ifndef atomic64_andnot static inline void atomic64_andnot(s64 i, atomic64_t v) { atomic64_and(~i, v); } #define atomic64_andnot atomic64_andnot #endif #ifndef atomic64_fetch_andnot_relaxed #ifdef atomic64_fetch_andnot #define atomic64_fetch_andnot_acquire atomic64_fetch_andnot #define atomic64_fetch_andnot_release atomic64_fetch_andnot #define atomic64_fetch_andnot_relaxed atomic64_fetch_andnot #endif /* atomic64_fetch_andnot / #ifndef atomic64_fetch_andnot static inline s64 atomic64_fetch_andnot(s64 i, atomic64_t v) { return atomic64_fetch_and(~i, v); } #define atomic64_fetch_andnot atomic64_fetch_andnot #endif #ifndef atomic64_fetch_andnot_acquire static inline s64 atomic64_fetch_andnot_acquire(s64 i, atomic64_t v) { return atomic64_fetch_and_acquire(~i, v); } #define atomic64_fetch_andnot_acquire atomic64_fetch_andnot_acquire #endif #ifndef atomic64_fetch_andnot_release static inline s64 atomic64_fetch_andnot_release(s64 i, atomic64_t v) { return atomic64_fetch_and_release(~i, v); } #define atomic64_fetch_andnot_release atomic64_fetch_andnot_release #endif #ifndef atomic64_fetch_andnot_relaxed static inline s64 atomic64_fetch_andnot_relaxed(s64 i, atomic64_t v) { return atomic64_fetch_and_relaxed(~i, v); } #define atomic64_fetch_andnot_relaxed atomic64_fetch_andnot_relaxed #endif #else / atomic64_fetch_andnot_relaxed / #ifndef atomic64_fetch_andnot_acquire static inline s64 atomic64_fetch_andnot_acquire(s64 i, atomic64_t v) { s64 ret = atomic64_fetch_andnot_relaxed(i, v); __atomic_acquire_fence(); return ret; } #define atomic64_fetch_andnot_acquire atomic64_fetch_andnot_acquire #endif #ifndef atomic64_fetch_andnot_release static inline s64 atomic64_fetch_andnot_release(s64 i, atomic64_t v) { __atomic_release_fence(); return atomic64_fetch_andnot_relaxed(i, v); } #define atomic64_fetch_andnot_release atomic64_fetch_andnot_release #endif #ifndef atomic64_fetch_andnot static inline s64 atomic64_fetch_andnot(s64 i, atomic64_t v) { s64 ret; __atomic_pre_full_fence(); ret = atomic64_fetch_andnot_relaxed(i, v); __atomic_post_full_fence(); return ret; } #define atomic64_fetch_andnot atomic64_fetch_andnot #endif #endif /* atomic64_fetch_andnot_relaxed / #ifndef atomic64_fetch_or_relaxed #define atomic64_fetch_or_acquire atomic64_fetch_or #define atomic64_fetch_or_release atomic64_fetch_or #define atomic64_fetch_or_relaxed atomic64_fetch_or #else / atomic64_fetch_or_relaxed / #ifndef atomic64_fetch_or_acquire static inline s64 atomic64_fetch_or_acquire(s64 i, atomic64_t v) { s64 ret = atomic64_fetch_or_relaxed(i, v); __atomic_acquire_fence(); return ret; } #define atomic64_fetch_or_acquire atomic64_fetch_or_acquire #endif #ifndef atomic64_fetch_or_release static inline s64 atomic64_fetch_or_release(s64 i, atomic64_t v) { __atomic_release_fence(); return atomic64_fetch_or_relaxed(i, v); } #define atomic64_fetch_or_release atomic64_fetch_or_release #endif #ifndef atomic64_fetch_or static inline s64 atomic64_fetch_or(s64 i, atomic64_t v) { s64 ret; __atomic_pre_full_fence(); ret = atomic64_fetch_or_relaxed(i, v); __atomic_post_full_fence(); return ret; } #define atomic64_fetch_or atomic64_fetch_or #endif #endif /* atomic64_fetch_or_relaxed / #ifndef atomic64_fetch_xor_relaxed #define atomic64_fetch_xor_acquire atomic64_fetch_xor #define atomic64_fetch_xor_release atomic64_fetch_xor #define atomic64_fetch_xor_relaxed atomic64_fetch_xor #else / atomic64_fetch_xor_relaxed / #ifndef atomic64_fetch_xor_acquire static inline s64 atomic64_fetch_xor_acquire(s64 i, atomic64_t v) { s64 ret = atomic64_fetch_xor_relaxed(i, v); __atomic_acquire_fence(); return ret; } #define atomic64_fetch_xor_acquire atomic64_fetch_xor_acquire #endif #ifndef atomic64_fetch_xor_release static inline s64 atomic64_fetch_xor_release(s64 i, atomic64_t v) { __atomic_release_fence(); return atomic64_fetch_xor_relaxed(i, v); } #define atomic64_fetch_xor_release atomic64_fetch_xor_release #endif #ifndef atomic64_fetch_xor static inline s64 atomic64_fetch_xor(s64 i, atomic64_t v) { s64 ret; __atomic_pre_full_fence(); ret = atomic64_fetch_xor_relaxed(i, v); __atomic_post_full_fence(); return ret; } #define atomic64_fetch_xor atomic64_fetch_xor #endif #endif /* atomic64_fetch_xor_relaxed / #ifndef atomic64_xchg_relaxed #define atomic64_xchg_acquire atomic64_xchg #define atomic64_xchg_release atomic64_xchg #define atomic64_xchg_relaxed atomic64_xchg #else / atomic64_xchg_relaxed / #ifndef atomic64_xchg_acquire static inline s64 atomic64_xchg_acquire(atomic64_t v, s64 i) { s64 ret = atomic64_xchg_relaxed(v, i); __atomic_acquire_fence(); return ret; } #define atomic64_xchg_acquire atomic64_xchg_acquire #endif #ifndef atomic64_xchg_release static inline s64 atomic64_xchg_release(atomic64_t v, s64 i) { __atomic_release_fence(); return atomic64_xchg_relaxed(v, i); } #define atomic64_xchg_release atomic64_xchg_release #endif #ifndef atomic64_xchg static inline s64 atomic64_xchg(atomic64_t v, s64 i) { s64 ret; __atomic_pre_full_fence(); ret = atomic64_xchg_relaxed(v, i); __atomic_post_full_fence(); return ret; } #define atomic64_xchg atomic64_xchg #endif #endif /* atomic64_xchg_relaxed / #ifndef atomic64_cmpxchg_relaxed #define atomic64_cmpxchg_acquire atomic64_cmpxchg #define atomic64_cmpxchg_release atomic64_cmpxchg #define atomic64_cmpxchg_relaxed atomic64_cmpxchg #else / atomic64_cmpxchg_relaxed / #ifndef atomic64_cmpxchg_acquire static inline s64 atomic64_cmpxchg_acquire(atomic64_t v, s64 old, s64 new) { s64 ret = atomic64_cmpxchg_relaxed(v, old, new); __atomic_acquire_fence(); return ret; } #define atomic64_cmpxchg_acquire atomic64_cmpxchg_acquire #endif #ifndef atomic64_cmpxchg_release static inline s64 atomic64_cmpxchg_release(atomic64_t v, s64 old, s64 new) { __atomic_release_fence(); return atomic64_cmpxchg_relaxed(v, old, new); } #define atomic64_cmpxchg_release atomic64_cmpxchg_release #endif #ifndef atomic64_cmpxchg static inline s64 atomic64_cmpxchg(atomic64_t v, s64 old, s64 new) { s64 ret; __atomic_pre_full_fence(); ret = atomic64_cmpxchg_relaxed(v, old, new); __atomic_post_full_fence(); return ret; } #define atomic64_cmpxchg atomic64_cmpxchg #endif #endif /* atomic64_cmpxchg_relaxed / #ifndef atomic64_try_cmpxchg_relaxed #ifdef atomic64_try_cmpxchg #define atomic64_try_cmpxchg_acquire atomic64_try_cmpxchg #define atomic64_try_cmpxchg_release atomic64_try_cmpxchg #define atomic64_try_cmpxchg_relaxed atomic64_try_cmpxchg #endif / atomic64_try_cmpxchg / #ifndef atomic64_try_cmpxchg static inline bool atomic64_try_cmpxchg(atomic64_t v, s64 old, s64 new) { s64 r, o = old; r = atomic64_cmpxchg(v, o, new); if (unlikely(r != o)) old = r; return likely(r == o); } #define atomic64_try_cmpxchg atomic64_try_cmpxchg #endif #ifndef atomic64_try_cmpxchg_acquire static inline bool atomic64_try_cmpxchg_acquire(atomic64_t v, s64 old, s64 new) { s64 r, o = old; r = atomic64_cmpxchg_acquire(v, o, new); if (unlikely(r != o)) old = r; return likely(r == o); } #define atomic64_try_cmpxchg_acquire atomic64_try_cmpxchg_acquire #endif #ifndef atomic64_try_cmpxchg_release static inline bool atomic64_try_cmpxchg_release(atomic64_t v, s64 old, s64 new) { s64 r, o = old; r = atomic64_cmpxchg_release(v, o, new); if (unlikely(r != o)) old = r; return likely(r == o); } #define atomic64_try_cmpxchg_release atomic64_try_cmpxchg_release #endif #ifndef atomic64_try_cmpxchg_relaxed static inline bool atomic64_try_cmpxchg_relaxed(atomic64_t v, s64 old, s64 new) { s64 r, o = old; r = atomic64_cmpxchg_relaxed(v, o, new); if (unlikely(r != o)) old = r; return likely(r == o); } #define atomic64_try_cmpxchg_relaxed atomic64_try_cmpxchg_relaxed #endif #else / atomic64_try_cmpxchg_relaxed / #ifndef atomic64_try_cmpxchg_acquire static inline bool atomic64_try_cmpxchg_acquire(atomic64_t v, s64 old, s64 new) { bool ret = atomic64_try_cmpxchg_relaxed(v, old, new); __atomic_acquire_fence(); return ret; } #define atomic64_try_cmpxchg_acquire atomic64_try_cmpxchg_acquire #endif #ifndef atomic64_try_cmpxchg_release static inline bool atomic64_try_cmpxchg_release(atomic64_t v, s64 old, s64 new) { __atomic_release_fence(); return atomic64_try_cmpxchg_relaxed(v, old, new); } #define atomic64_try_cmpxchg_release atomic64_try_cmpxchg_release #endif #ifndef atomic64_try_cmpxchg static inline bool atomic64_try_cmpxchg(atomic64_t v, s64 old, s64 new) { bool ret; __atomic_pre_full_fence(); ret = atomic64_try_cmpxchg_relaxed(v, old, new); __atomic_post_full_fence(); return ret; } #define atomic64_try_cmpxchg atomic64_try_cmpxchg #endif #endif / atomic64_try_cmpxchg_relaxed / #ifndef atomic64_sub_and_test /* * atomic64_sub_and_test - subtract value from variable and test result * @i: integer value to subtract * @v: pointer of type atomic64_t * * Atomically subtracts @i from @v and returns * true if the result is zero, or false for all * other cases. / static inline bool atomic64_sub_and_test(s64 i, atomic64_t v) { return atomic64_sub_return(i, v) == 0; } #define atomic64_sub_and_test atomic64_sub_and_test #endif #ifndef atomic64_dec_and_test /** * atomic64_dec_and_test - decrement and test * @v: pointer of type atomic64_t * * Atomically decrements @v by 1 and * returns true if the result is 0, or false for all other * cases. / static inline bool atomic64_dec_and_test(atomic64_t v) { return atomic64_dec_return(v) == 0; } #define atomic64_dec_and_test atomic64_dec_and_test #endif #ifndef atomic64_inc_and_test /** * atomic64_inc_and_test - increment and test * @v: pointer of type atomic64_t * * Atomically increments @v by 1 * and returns true if the result is zero, or false for all * other cases. / static inline bool atomic64_inc_and_test(atomic64_t v) { return atomic64_inc_return(v) == 0; } #define atomic64_inc_and_test atomic64_inc_and_test #endif #ifndef atomic64_add_negative /** * atomic64_add_negative - add and test if negative * @i: integer value to add * @v: pointer of type atomic64_t * * Atomically adds @i to @v and returns true * if the result is negative, or false when * result is greater than or equal to zero. / static inline bool atomic64_add_negative(s64 i, atomic64_t v) { return atomic64_add_return(i, v) < 0; } #define atomic64_add_negative atomic64_add_negative #endif #ifndef atomic64_fetch_add_unless /** * atomic64_fetch_add_unless - add unless the number is already a given value * @v: pointer of type atomic64_t * @a: the amount to add to v... * @u: ...unless v is equal to u. * * Atomically adds @a to @v, so long as @v was not already @u. * Returns original value of @v / static inline s64 atomic64_fetch_add_unless(atomic64_t v, s64 a, s64 u) { s64 c = atomic64_read(v); do { if (unlikely(c == u)) break; } while (!atomic64_try_cmpxchg(v, &c, c + a)); return c; } #define atomic64_fetch_add_unless atomic64_fetch_add_unless #endif #ifndef atomic64_add_unless /** * atomic64_add_unless - add unless the number is already a given value * @v: pointer of type atomic64_t * @a: the amount to add to v... * @u: ...unless v is equal to u. * * Atomically adds @a to @v, if @v was not already @u. * Returns true if the addition was done. / static inline bool atomic64_add_unless(atomic64_t v, s64 a, s64 u) { return atomic64_fetch_add_unless(v, a, u) != u; } #define atomic64_add_unless atomic64_add_unless #endif #ifndef atomic64_inc_not_zero /** * atomic64_inc_not_zero - increment unless the number is zero * @v: pointer of type atomic64_t * * Atomically increments @v by 1, if @v is non-zero. * Returns true if the increment was done. / static inline bool atomic64_inc_not_zero(atomic64_t v) { return atomic64_add_unless(v, 1, 0); } #define atomic64_inc_not_zero atomic64_inc_not_zero #endif #ifndef atomic64_inc_unless_negative static inline bool atomic64_inc_unless_negative(atomic64_t v) { s64 c = atomic64_read(v); do { if (unlikely(c < 0)) return false; } while (!atomic64_try_cmpxchg(v, &c, c + 1)); return true; } #define atomic64_inc_unless_negative atomic64_inc_unless_negative #endif #ifndef atomic64_dec_unless_positive static inline bool atomic64_dec_unless_positive(atomic64_t v) { s64 c = atomic64_read(v); do { if (unlikely(c > 0)) return false; } while (!atomic64_try_cmpxchg(v, &c, c - 1)); return true; } #define atomic64_dec_unless_positive atomic64_dec_unless_positive #endif #ifndef atomic64_dec_if_positive static inline s64 atomic64_dec_if_positive(atomic64_t v) { s64 dec, c = atomic64_read(v); do { dec = c - 1; if (unlikely(dec < 0)) break; } while (!atomic64_try_cmpxchg(v, &c, dec)); return dec; } #define atomic64_dec_if_positive atomic64_dec_if_positive #endif #define atomic64_cond_read_acquire(v, c) smp_cond_load_acquire(&(v)->counter, (c)) #define atomic64_cond_read_relaxed(v, c) smp_cond_load_relaxed(&(v)->counter, (c)) #endif / _LINUX_ATOMIC_FALLBACK_H */ // 25de4a2804d70f57e994fe3b419148658bb5378a

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