diff options
Diffstat (limited to 'include/linux/atomic/atomic-arch-fallback.h')
| -rw-r--r-- | include/linux/atomic/atomic-arch-fallback.h | 4652 |
1 files changed, 4652 insertions, 0 deletions
diff --git a/include/linux/atomic/atomic-arch-fallback.h b/include/linux/atomic/atomic-arch-fallback.h new file mode 100644 index 000000000..b83ef19da --- /dev/null +++ b/include/linux/atomic/atomic-arch-fallback.h @@ -0,0 +1,4652 @@ +// 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 + +#include <linux/compiler.h> + +#if defined(arch_xchg) +#define raw_xchg arch_xchg +#elif defined(arch_xchg_relaxed) +#define raw_xchg(...) \ + __atomic_op_fence(arch_xchg, __VA_ARGS__) +#else +extern void raw_xchg_not_implemented(void); +#define raw_xchg(...) raw_xchg_not_implemented() +#endif + +#if defined(arch_xchg_acquire) +#define raw_xchg_acquire arch_xchg_acquire +#elif defined(arch_xchg_relaxed) +#define raw_xchg_acquire(...) \ + __atomic_op_acquire(arch_xchg, __VA_ARGS__) +#elif defined(arch_xchg) +#define raw_xchg_acquire arch_xchg +#else +extern void raw_xchg_acquire_not_implemented(void); +#define raw_xchg_acquire(...) raw_xchg_acquire_not_implemented() +#endif + +#if defined(arch_xchg_release) +#define raw_xchg_release arch_xchg_release +#elif defined(arch_xchg_relaxed) +#define raw_xchg_release(...) \ + __atomic_op_release(arch_xchg, __VA_ARGS__) +#elif defined(arch_xchg) +#define raw_xchg_release arch_xchg +#else +extern void raw_xchg_release_not_implemented(void); +#define raw_xchg_release(...) raw_xchg_release_not_implemented() +#endif + +#if defined(arch_xchg_relaxed) +#define raw_xchg_relaxed arch_xchg_relaxed +#elif defined(arch_xchg) +#define raw_xchg_relaxed arch_xchg +#else +extern void raw_xchg_relaxed_not_implemented(void); +#define raw_xchg_relaxed(...) raw_xchg_relaxed_not_implemented() +#endif + +#if defined(arch_cmpxchg) +#define raw_cmpxchg arch_cmpxchg +#elif defined(arch_cmpxchg_relaxed) +#define raw_cmpxchg(...) \ + __atomic_op_fence(arch_cmpxchg, __VA_ARGS__) +#else +extern void raw_cmpxchg_not_implemented(void); +#define raw_cmpxchg(...) raw_cmpxchg_not_implemented() +#endif + +#if defined(arch_cmpxchg_acquire) +#define raw_cmpxchg_acquire arch_cmpxchg_acquire +#elif defined(arch_cmpxchg_relaxed) +#define raw_cmpxchg_acquire(...) \ + __atomic_op_acquire(arch_cmpxchg, __VA_ARGS__) +#elif defined(arch_cmpxchg) +#define raw_cmpxchg_acquire arch_cmpxchg +#else +extern void raw_cmpxchg_acquire_not_implemented(void); +#define raw_cmpxchg_acquire(...) raw_cmpxchg_acquire_not_implemented() +#endif + +#if defined(arch_cmpxchg_release) +#define raw_cmpxchg_release arch_cmpxchg_release +#elif defined(arch_cmpxchg_relaxed) +#define raw_cmpxchg_release(...) \ + __atomic_op_release(arch_cmpxchg, __VA_ARGS__) +#elif defined(arch_cmpxchg) +#define raw_cmpxchg_release arch_cmpxchg +#else +extern void raw_cmpxchg_release_not_implemented(void); +#define raw_cmpxchg_release(...) raw_cmpxchg_release_not_implemented() +#endif + +#if defined(arch_cmpxchg_relaxed) +#define raw_cmpxchg_relaxed arch_cmpxchg_relaxed +#elif defined(arch_cmpxchg) +#define raw_cmpxchg_relaxed arch_cmpxchg +#else +extern void raw_cmpxchg_relaxed_not_implemented(void); +#define raw_cmpxchg_relaxed(...) raw_cmpxchg_relaxed_not_implemented() +#endif + +#if defined(arch_cmpxchg64) +#define raw_cmpxchg64 arch_cmpxchg64 +#elif defined(arch_cmpxchg64_relaxed) +#define raw_cmpxchg64(...) \ + __atomic_op_fence(arch_cmpxchg64, __VA_ARGS__) +#else +extern void raw_cmpxchg64_not_implemented(void); +#define raw_cmpxchg64(...) raw_cmpxchg64_not_implemented() +#endif + +#if defined(arch_cmpxchg64_acquire) +#define raw_cmpxchg64_acquire arch_cmpxchg64_acquire +#elif defined(arch_cmpxchg64_relaxed) +#define raw_cmpxchg64_acquire(...) \ + __atomic_op_acquire(arch_cmpxchg64, __VA_ARGS__) +#elif defined(arch_cmpxchg64) +#define raw_cmpxchg64_acquire arch_cmpxchg64 +#else +extern void raw_cmpxchg64_acquire_not_implemented(void); +#define raw_cmpxchg64_acquire(...) raw_cmpxchg64_acquire_not_implemented() +#endif + +#if defined(arch_cmpxchg64_release) +#define raw_cmpxchg64_release arch_cmpxchg64_release +#elif defined(arch_cmpxchg64_relaxed) +#define raw_cmpxchg64_release(...) \ + __atomic_op_release(arch_cmpxchg64, __VA_ARGS__) +#elif defined(arch_cmpxchg64) +#define raw_cmpxchg64_release arch_cmpxchg64 +#else +extern void raw_cmpxchg64_release_not_implemented(void); +#define raw_cmpxchg64_release(...) raw_cmpxchg64_release_not_implemented() +#endif + +#if defined(arch_cmpxchg64_relaxed) +#define raw_cmpxchg64_relaxed arch_cmpxchg64_relaxed +#elif defined(arch_cmpxchg64) +#define raw_cmpxchg64_relaxed arch_cmpxchg64 +#else +extern void raw_cmpxchg64_relaxed_not_implemented(void); +#define raw_cmpxchg64_relaxed(...) raw_cmpxchg64_relaxed_not_implemented() +#endif + +#if defined(arch_cmpxchg128) +#define raw_cmpxchg128 arch_cmpxchg128 +#elif defined(arch_cmpxchg128_relaxed) +#define raw_cmpxchg128(...) \ + __atomic_op_fence(arch_cmpxchg128, __VA_ARGS__) +#else +extern void raw_cmpxchg128_not_implemented(void); +#define raw_cmpxchg128(...) raw_cmpxchg128_not_implemented() +#endif + +#if defined(arch_cmpxchg128_acquire) +#define raw_cmpxchg128_acquire arch_cmpxchg128_acquire +#elif defined(arch_cmpxchg128_relaxed) +#define raw_cmpxchg128_acquire(...) \ + __atomic_op_acquire(arch_cmpxchg128, __VA_ARGS__) +#elif defined(arch_cmpxchg128) +#define raw_cmpxchg128_acquire arch_cmpxchg128 +#else +extern void raw_cmpxchg128_acquire_not_implemented(void); +#define raw_cmpxchg128_acquire(...) raw_cmpxchg128_acquire_not_implemented() +#endif + +#if defined(arch_cmpxchg128_release) +#define raw_cmpxchg128_release arch_cmpxchg128_release +#elif defined(arch_cmpxchg128_relaxed) +#define raw_cmpxchg128_release(...) \ + __atomic_op_release(arch_cmpxchg128, __VA_ARGS__) +#elif defined(arch_cmpxchg128) +#define raw_cmpxchg128_release arch_cmpxchg128 +#else +extern void raw_cmpxchg128_release_not_implemented(void); +#define raw_cmpxchg128_release(...) raw_cmpxchg128_release_not_implemented() +#endif + +#if defined(arch_cmpxchg128_relaxed) +#define raw_cmpxchg128_relaxed arch_cmpxchg128_relaxed +#elif defined(arch_cmpxchg128) +#define raw_cmpxchg128_relaxed arch_cmpxchg128 +#else +extern void raw_cmpxchg128_relaxed_not_implemented(void); +#define raw_cmpxchg128_relaxed(...) raw_cmpxchg128_relaxed_not_implemented() +#endif + +#if defined(arch_try_cmpxchg) +#define raw_try_cmpxchg arch_try_cmpxchg +#elif defined(arch_try_cmpxchg_relaxed) +#define raw_try_cmpxchg(...) \ + __atomic_op_fence(arch_try_cmpxchg, __VA_ARGS__) +#else +#define raw_try_cmpxchg(_ptr, _oldp, _new) \ +({ \ + typeof(*(_ptr)) *___op = (_oldp), ___o = *___op, ___r; \ + ___r = raw_cmpxchg((_ptr), ___o, (_new)); \ + if (unlikely(___r != ___o)) \ + *___op = ___r; \ + likely(___r == ___o); \ +}) +#endif + +#if defined(arch_try_cmpxchg_acquire) +#define raw_try_cmpxchg_acquire arch_try_cmpxchg_acquire +#elif defined(arch_try_cmpxchg_relaxed) +#define raw_try_cmpxchg_acquire(...) \ + __atomic_op_acquire(arch_try_cmpxchg, __VA_ARGS__) +#elif defined(arch_try_cmpxchg) +#define raw_try_cmpxchg_acquire arch_try_cmpxchg +#else +#define raw_try_cmpxchg_acquire(_ptr, _oldp, _new) \ +({ \ + typeof(*(_ptr)) *___op = (_oldp), ___o = *___op, ___r; \ + ___r = raw_cmpxchg_acquire((_ptr), ___o, (_new)); \ + if (unlikely(___r != ___o)) \ + *___op = ___r; \ + likely(___r == ___o); \ +}) +#endif + +#if defined(arch_try_cmpxchg_release) +#define raw_try_cmpxchg_release arch_try_cmpxchg_release +#elif defined(arch_try_cmpxchg_relaxed) +#define raw_try_cmpxchg_release(...) \ + __atomic_op_release(arch_try_cmpxchg, __VA_ARGS__) +#elif defined(arch_try_cmpxchg) +#define raw_try_cmpxchg_release arch_try_cmpxchg +#else +#define raw_try_cmpxchg_release(_ptr, _oldp, _new) \ +({ \ + typeof(*(_ptr)) *___op = (_oldp), ___o = *___op, ___r; \ + ___r = raw_cmpxchg_release((_ptr), ___o, (_new)); \ + if (unlikely(___r != ___o)) \ + *___op = ___r; \ + likely(___r == ___o); \ +}) +#endif + +#if defined(arch_try_cmpxchg_relaxed) +#define raw_try_cmpxchg_relaxed arch_try_cmpxchg_relaxed +#elif defined(arch_try_cmpxchg) +#define raw_try_cmpxchg_relaxed arch_try_cmpxchg +#else +#define raw_try_cmpxchg_relaxed(_ptr, _oldp, _new) \ +({ \ + typeof(*(_ptr)) *___op = (_oldp), ___o = *___op, ___r; \ + ___r = raw_cmpxchg_relaxed((_ptr), ___o, (_new)); \ + if (unlikely(___r != ___o)) \ + *___op = ___r; \ + likely(___r == ___o); \ +}) +#endif + +#if defined(arch_try_cmpxchg64) +#define raw_try_cmpxchg64 arch_try_cmpxchg64 +#elif defined(arch_try_cmpxchg64_relaxed) +#define raw_try_cmpxchg64(...) \ + __atomic_op_fence(arch_try_cmpxchg64, __VA_ARGS__) +#else +#define raw_try_cmpxchg64(_ptr, _oldp, _new) \ +({ \ + typeof(*(_ptr)) *___op = (_oldp), ___o = *___op, ___r; \ + ___r = raw_cmpxchg64((_ptr), ___o, (_new)); \ + if (unlikely(___r != ___o)) \ + *___op = ___r; \ + likely(___r == ___o); \ +}) +#endif + +#if defined(arch_try_cmpxchg64_acquire) +#define raw_try_cmpxchg64_acquire arch_try_cmpxchg64_acquire +#elif defined(arch_try_cmpxchg64_relaxed) +#define raw_try_cmpxchg64_acquire(...) \ + __atomic_op_acquire(arch_try_cmpxchg64, __VA_ARGS__) +#elif defined(arch_try_cmpxchg64) +#define raw_try_cmpxchg64_acquire arch_try_cmpxchg64 +#else +#define raw_try_cmpxchg64_acquire(_ptr, _oldp, _new) \ +({ \ + typeof(*(_ptr)) *___op = (_oldp), ___o = *___op, ___r; \ + ___r = raw_cmpxchg64_acquire((_ptr), ___o, (_new)); \ + if (unlikely(___r != ___o)) \ + *___op = ___r; \ + likely(___r == ___o); \ +}) +#endif + +#if defined(arch_try_cmpxchg64_release) +#define raw_try_cmpxchg64_release arch_try_cmpxchg64_release +#elif defined(arch_try_cmpxchg64_relaxed) +#define raw_try_cmpxchg64_release(...) \ + __atomic_op_release(arch_try_cmpxchg64, __VA_ARGS__) +#elif defined(arch_try_cmpxchg64) +#define raw_try_cmpxchg64_release arch_try_cmpxchg64 +#else +#define raw_try_cmpxchg64_release(_ptr, _oldp, _new) \ +({ \ + typeof(*(_ptr)) *___op = (_oldp), ___o = *___op, ___r; \ + ___r = raw_cmpxchg64_release((_ptr), ___o, (_new)); \ + if (unlikely(___r != ___o)) \ + *___op = ___r; \ + likely(___r == ___o); \ +}) +#endif + +#if defined(arch_try_cmpxchg64_relaxed) +#define raw_try_cmpxchg64_relaxed arch_try_cmpxchg64_relaxed +#elif defined(arch_try_cmpxchg64) +#define raw_try_cmpxchg64_relaxed arch_try_cmpxchg64 +#else +#define raw_try_cmpxchg64_relaxed(_ptr, _oldp, _new) \ +({ \ + typeof(*(_ptr)) *___op = (_oldp), ___o = *___op, ___r; \ + ___r = raw_cmpxchg64_relaxed((_ptr), ___o, (_new)); \ + if (unlikely(___r != ___o)) \ + *___op = ___r; \ + likely(___r == ___o); \ +}) +#endif + +#if defined(arch_try_cmpxchg128) +#define raw_try_cmpxchg128 arch_try_cmpxchg128 +#elif defined(arch_try_cmpxchg128_relaxed) +#define raw_try_cmpxchg128(...) \ + __atomic_op_fence(arch_try_cmpxchg128, __VA_ARGS__) +#else +#define raw_try_cmpxchg128(_ptr, _oldp, _new) \ +({ \ + typeof(*(_ptr)) *___op = (_oldp), ___o = *___op, ___r; \ + ___r = raw_cmpxchg128((_ptr), ___o, (_new)); \ + if (unlikely(___r != ___o)) \ + *___op = ___r; \ + likely(___r == ___o); \ +}) +#endif + +#if defined(arch_try_cmpxchg128_acquire) +#define raw_try_cmpxchg128_acquire arch_try_cmpxchg128_acquire +#elif defined(arch_try_cmpxchg128_relaxed) +#define raw_try_cmpxchg128_acquire(...) \ + __atomic_op_acquire(arch_try_cmpxchg128, __VA_ARGS__) +#elif defined(arch_try_cmpxchg128) +#define raw_try_cmpxchg128_acquire arch_try_cmpxchg128 +#else +#define raw_try_cmpxchg128_acquire(_ptr, _oldp, _new) \ +({ \ + typeof(*(_ptr)) *___op = (_oldp), ___o = *___op, ___r; \ + ___r = raw_cmpxchg128_acquire((_ptr), ___o, (_new)); \ + if (unlikely(___r != ___o)) \ + *___op = ___r; \ + likely(___r == ___o); \ +}) +#endif + +#if defined(arch_try_cmpxchg128_release) +#define raw_try_cmpxchg128_release arch_try_cmpxchg128_release +#elif defined(arch_try_cmpxchg128_relaxed) +#define raw_try_cmpxchg128_release(...) \ + __atomic_op_release(arch_try_cmpxchg128, __VA_ARGS__) +#elif defined(arch_try_cmpxchg128) +#define raw_try_cmpxchg128_release arch_try_cmpxchg128 +#else +#define raw_try_cmpxchg128_release(_ptr, _oldp, _new) \ +({ \ + typeof(*(_ptr)) *___op = (_oldp), ___o = *___op, ___r; \ + ___r = raw_cmpxchg128_release((_ptr), ___o, (_new)); \ + if (unlikely(___r != ___o)) \ + *___op = ___r; \ + likely(___r == ___o); \ +}) +#endif + +#if defined(arch_try_cmpxchg128_relaxed) +#define raw_try_cmpxchg128_relaxed arch_try_cmpxchg128_relaxed +#elif defined(arch_try_cmpxchg128) +#define raw_try_cmpxchg128_relaxed arch_try_cmpxchg128 +#else +#define raw_try_cmpxchg128_relaxed(_ptr, _oldp, _new) \ +({ \ + typeof(*(_ptr)) *___op = (_oldp), ___o = *___op, ___r; \ + ___r = raw_cmpxchg128_relaxed((_ptr), ___o, (_new)); \ + if (unlikely(___r != ___o)) \ + *___op = ___r; \ + likely(___r == ___o); \ +}) +#endif + +#define raw_cmpxchg_local arch_cmpxchg_local + +#ifdef arch_try_cmpxchg_local +#define raw_try_cmpxchg_local arch_try_cmpxchg_local +#else +#define raw_try_cmpxchg_local(_ptr, _oldp, _new) \ +({ \ + typeof(*(_ptr)) *___op = (_oldp), ___o = *___op, ___r; \ + ___r = raw_cmpxchg_local((_ptr), ___o, (_new)); \ + if (unlikely(___r != ___o)) \ + *___op = ___r; \ + likely(___r == ___o); \ +}) +#endif + +#define raw_cmpxchg64_local arch_cmpxchg64_local + +#ifdef arch_try_cmpxchg64_local +#define raw_try_cmpxchg64_local arch_try_cmpxchg64_local +#else +#define raw_try_cmpxchg64_local(_ptr, _oldp, _new) \ +({ \ + typeof(*(_ptr)) *___op = (_oldp), ___o = *___op, ___r; \ + ___r = raw_cmpxchg64_local((_ptr), ___o, (_new)); \ + if (unlikely(___r != ___o)) \ + *___op = ___r; \ + likely(___r == ___o); \ +}) +#endif + +#define raw_cmpxchg128_local arch_cmpxchg128_local + +#ifdef arch_try_cmpxchg128_local +#define raw_try_cmpxchg128_local arch_try_cmpxchg128_local +#else +#define raw_try_cmpxchg128_local(_ptr, _oldp, _new) \ +({ \ + typeof(*(_ptr)) *___op = (_oldp), ___o = *___op, ___r; \ + ___r = raw_cmpxchg128_local((_ptr), ___o, (_new)); \ + if (unlikely(___r != ___o)) \ + *___op = ___r; \ + likely(___r == ___o); \ +}) +#endif + +#define raw_sync_cmpxchg arch_sync_cmpxchg + +/** + * raw_atomic_read() - atomic load with relaxed ordering + * @v: pointer to atomic_t + * + * Atomically loads the value of @v with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic_read() elsewhere. + * + * Return: The value loaded from @v. + */ +static __always_inline int +raw_atomic_read(const atomic_t *v) +{ + return arch_atomic_read(v); +} + +/** + * raw_atomic_read_acquire() - atomic load with acquire ordering + * @v: pointer to atomic_t + * + * Atomically loads the value of @v with acquire ordering. + * + * Safe to use in noinstr code; prefer atomic_read_acquire() elsewhere. + * + * Return: The value loaded from @v. + */ +static __always_inline int +raw_atomic_read_acquire(const atomic_t *v) +{ +#if defined(arch_atomic_read_acquire) + return arch_atomic_read_acquire(v); +#else + int ret; + + if (__native_word(atomic_t)) { + ret = smp_load_acquire(&(v)->counter); + } else { + ret = raw_atomic_read(v); + __atomic_acquire_fence(); + } + + return ret; +#endif +} + +/** + * raw_atomic_set() - atomic set with relaxed ordering + * @v: pointer to atomic_t + * @i: int value to assign + * + * Atomically sets @v to @i with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic_set() elsewhere. + * + * Return: Nothing. + */ +static __always_inline void +raw_atomic_set(atomic_t *v, int i) +{ + arch_atomic_set(v, i); +} + +/** + * raw_atomic_set_release() - atomic set with release ordering + * @v: pointer to atomic_t + * @i: int value to assign + * + * Atomically sets @v to @i with release ordering. + * + * Safe to use in noinstr code; prefer atomic_set_release() elsewhere. + * + * Return: Nothing. + */ +static __always_inline void +raw_atomic_set_release(atomic_t *v, int i) +{ +#if defined(arch_atomic_set_release) + arch_atomic_set_release(v, i); +#else + if (__native_word(atomic_t)) { + smp_store_release(&(v)->counter, i); + } else { + __atomic_release_fence(); + raw_atomic_set(v, i); + } +#endif +} + +/** + * raw_atomic_add() - atomic add with relaxed ordering + * @i: int value to add + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v + @i) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic_add() elsewhere. + * + * Return: Nothing. + */ +static __always_inline void +raw_atomic_add(int i, atomic_t *v) +{ + arch_atomic_add(i, v); +} + +/** + * raw_atomic_add_return() - atomic add with full ordering + * @i: int value to add + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v + @i) with full ordering. + * + * Safe to use in noinstr code; prefer atomic_add_return() elsewhere. + * + * Return: The updated value of @v. + */ +static __always_inline int +raw_atomic_add_return(int i, atomic_t *v) +{ +#if defined(arch_atomic_add_return) + return arch_atomic_add_return(i, v); +#elif defined(arch_atomic_add_return_relaxed) + int ret; + __atomic_pre_full_fence(); + ret = arch_atomic_add_return_relaxed(i, v); + __atomic_post_full_fence(); + return ret; +#else +#error "Unable to define raw_atomic_add_return" +#endif +} + +/** + * raw_atomic_add_return_acquire() - atomic add with acquire ordering + * @i: int value to add + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v + @i) with acquire ordering. + * + * Safe to use in noinstr code; prefer atomic_add_return_acquire() elsewhere. + * + * Return: The updated value of @v. + */ +static __always_inline int +raw_atomic_add_return_acquire(int i, atomic_t *v) +{ +#if defined(arch_atomic_add_return_acquire) + return arch_atomic_add_return_acquire(i, v); +#elif defined(arch_atomic_add_return_relaxed) + int ret = arch_atomic_add_return_relaxed(i, v); + __atomic_acquire_fence(); + return ret; +#elif defined(arch_atomic_add_return) + return arch_atomic_add_return(i, v); +#else +#error "Unable to define raw_atomic_add_return_acquire" +#endif +} + +/** + * raw_atomic_add_return_release() - atomic add with release ordering + * @i: int value to add + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v + @i) with release ordering. + * + * Safe to use in noinstr code; prefer atomic_add_return_release() elsewhere. + * + * Return: The updated value of @v. + */ +static __always_inline int +raw_atomic_add_return_release(int i, atomic_t *v) +{ +#if defined(arch_atomic_add_return_release) + return arch_atomic_add_return_release(i, v); +#elif defined(arch_atomic_add_return_relaxed) + __atomic_release_fence(); + return arch_atomic_add_return_relaxed(i, v); +#elif defined(arch_atomic_add_return) + return arch_atomic_add_return(i, v); +#else +#error "Unable to define raw_atomic_add_return_release" +#endif +} + +/** + * raw_atomic_add_return_relaxed() - atomic add with relaxed ordering + * @i: int value to add + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v + @i) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic_add_return_relaxed() elsewhere. + * + * Return: The updated value of @v. + */ +static __always_inline int +raw_atomic_add_return_relaxed(int i, atomic_t *v) +{ +#if defined(arch_atomic_add_return_relaxed) + return arch_atomic_add_return_relaxed(i, v); +#elif defined(arch_atomic_add_return) + return arch_atomic_add_return(i, v); +#else +#error "Unable to define raw_atomic_add_return_relaxed" +#endif +} + +/** + * raw_atomic_fetch_add() - atomic add with full ordering + * @i: int value to add + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v + @i) with full ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_add() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_add(int i, atomic_t *v) +{ +#if defined(arch_atomic_fetch_add) + return arch_atomic_fetch_add(i, v); +#elif defined(arch_atomic_fetch_add_relaxed) + int ret; + __atomic_pre_full_fence(); + ret = arch_atomic_fetch_add_relaxed(i, v); + __atomic_post_full_fence(); + return ret; +#else +#error "Unable to define raw_atomic_fetch_add" +#endif +} + +/** + * raw_atomic_fetch_add_acquire() - atomic add with acquire ordering + * @i: int value to add + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v + @i) with acquire ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_add_acquire() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_add_acquire(int i, atomic_t *v) +{ +#if defined(arch_atomic_fetch_add_acquire) + return arch_atomic_fetch_add_acquire(i, v); +#elif defined(arch_atomic_fetch_add_relaxed) + int ret = arch_atomic_fetch_add_relaxed(i, v); + __atomic_acquire_fence(); + return ret; +#elif defined(arch_atomic_fetch_add) + return arch_atomic_fetch_add(i, v); +#else +#error "Unable to define raw_atomic_fetch_add_acquire" +#endif +} + +/** + * raw_atomic_fetch_add_release() - atomic add with release ordering + * @i: int value to add + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v + @i) with release ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_add_release() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_add_release(int i, atomic_t *v) +{ +#if defined(arch_atomic_fetch_add_release) + return arch_atomic_fetch_add_release(i, v); +#elif defined(arch_atomic_fetch_add_relaxed) + __atomic_release_fence(); + return arch_atomic_fetch_add_relaxed(i, v); +#elif defined(arch_atomic_fetch_add) + return arch_atomic_fetch_add(i, v); +#else +#error "Unable to define raw_atomic_fetch_add_release" +#endif +} + +/** + * raw_atomic_fetch_add_relaxed() - atomic add with relaxed ordering + * @i: int value to add + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v + @i) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_add_relaxed() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_add_relaxed(int i, atomic_t *v) +{ +#if defined(arch_atomic_fetch_add_relaxed) + return arch_atomic_fetch_add_relaxed(i, v); +#elif defined(arch_atomic_fetch_add) + return arch_atomic_fetch_add(i, v); +#else +#error "Unable to define raw_atomic_fetch_add_relaxed" +#endif +} + +/** + * raw_atomic_sub() - atomic subtract with relaxed ordering + * @i: int value to subtract + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v - @i) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic_sub() elsewhere. + * + * Return: Nothing. + */ +static __always_inline void +raw_atomic_sub(int i, atomic_t *v) +{ + arch_atomic_sub(i, v); +} + +/** + * raw_atomic_sub_return() - atomic subtract with full ordering + * @i: int value to subtract + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v - @i) with full ordering. + * + * Safe to use in noinstr code; prefer atomic_sub_return() elsewhere. + * + * Return: The updated value of @v. + */ +static __always_inline int +raw_atomic_sub_return(int i, atomic_t *v) +{ +#if defined(arch_atomic_sub_return) + return arch_atomic_sub_return(i, v); +#elif defined(arch_atomic_sub_return_relaxed) + int ret; + __atomic_pre_full_fence(); + ret = arch_atomic_sub_return_relaxed(i, v); + __atomic_post_full_fence(); + return ret; +#else +#error "Unable to define raw_atomic_sub_return" +#endif +} + +/** + * raw_atomic_sub_return_acquire() - atomic subtract with acquire ordering + * @i: int value to subtract + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v - @i) with acquire ordering. + * + * Safe to use in noinstr code; prefer atomic_sub_return_acquire() elsewhere. + * + * Return: The updated value of @v. + */ +static __always_inline int +raw_atomic_sub_return_acquire(int i, atomic_t *v) +{ +#if defined(arch_atomic_sub_return_acquire) + return arch_atomic_sub_return_acquire(i, v); +#elif defined(arch_atomic_sub_return_relaxed) + int ret = arch_atomic_sub_return_relaxed(i, v); + __atomic_acquire_fence(); + return ret; +#elif defined(arch_atomic_sub_return) + return arch_atomic_sub_return(i, v); +#else +#error "Unable to define raw_atomic_sub_return_acquire" +#endif +} + +/** + * raw_atomic_sub_return_release() - atomic subtract with release ordering + * @i: int value to subtract + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v - @i) with release ordering. + * + * Safe to use in noinstr code; prefer atomic_sub_return_release() elsewhere. + * + * Return: The updated value of @v. + */ +static __always_inline int +raw_atomic_sub_return_release(int i, atomic_t *v) +{ +#if defined(arch_atomic_sub_return_release) + return arch_atomic_sub_return_release(i, v); +#elif defined(arch_atomic_sub_return_relaxed) + __atomic_release_fence(); + return arch_atomic_sub_return_relaxed(i, v); +#elif defined(arch_atomic_sub_return) + return arch_atomic_sub_return(i, v); +#else +#error "Unable to define raw_atomic_sub_return_release" +#endif +} + +/** + * raw_atomic_sub_return_relaxed() - atomic subtract with relaxed ordering + * @i: int value to subtract + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v - @i) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic_sub_return_relaxed() elsewhere. + * + * Return: The updated value of @v. + */ +static __always_inline int +raw_atomic_sub_return_relaxed(int i, atomic_t *v) +{ +#if defined(arch_atomic_sub_return_relaxed) + return arch_atomic_sub_return_relaxed(i, v); +#elif defined(arch_atomic_sub_return) + return arch_atomic_sub_return(i, v); +#else +#error "Unable to define raw_atomic_sub_return_relaxed" +#endif +} + +/** + * raw_atomic_fetch_sub() - atomic subtract with full ordering + * @i: int value to subtract + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v - @i) with full ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_sub() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_sub(int i, atomic_t *v) +{ +#if defined(arch_atomic_fetch_sub) + return arch_atomic_fetch_sub(i, v); +#elif defined(arch_atomic_fetch_sub_relaxed) + int ret; + __atomic_pre_full_fence(); + ret = arch_atomic_fetch_sub_relaxed(i, v); + __atomic_post_full_fence(); + return ret; +#else +#error "Unable to define raw_atomic_fetch_sub" +#endif +} + +/** + * raw_atomic_fetch_sub_acquire() - atomic subtract with acquire ordering + * @i: int value to subtract + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v - @i) with acquire ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_sub_acquire() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_sub_acquire(int i, atomic_t *v) +{ +#if defined(arch_atomic_fetch_sub_acquire) + return arch_atomic_fetch_sub_acquire(i, v); +#elif defined(arch_atomic_fetch_sub_relaxed) + int ret = arch_atomic_fetch_sub_relaxed(i, v); + __atomic_acquire_fence(); + return ret; +#elif defined(arch_atomic_fetch_sub) + return arch_atomic_fetch_sub(i, v); +#else +#error "Unable to define raw_atomic_fetch_sub_acquire" +#endif +} + +/** + * raw_atomic_fetch_sub_release() - atomic subtract with release ordering + * @i: int value to subtract + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v - @i) with release ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_sub_release() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_sub_release(int i, atomic_t *v) +{ +#if defined(arch_atomic_fetch_sub_release) + return arch_atomic_fetch_sub_release(i, v); +#elif defined(arch_atomic_fetch_sub_relaxed) + __atomic_release_fence(); + return arch_atomic_fetch_sub_relaxed(i, v); +#elif defined(arch_atomic_fetch_sub) + return arch_atomic_fetch_sub(i, v); +#else +#error "Unable to define raw_atomic_fetch_sub_release" +#endif +} + +/** + * raw_atomic_fetch_sub_relaxed() - atomic subtract with relaxed ordering + * @i: int value to subtract + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v - @i) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_sub_relaxed() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_sub_relaxed(int i, atomic_t *v) +{ +#if defined(arch_atomic_fetch_sub_relaxed) + return arch_atomic_fetch_sub_relaxed(i, v); +#elif defined(arch_atomic_fetch_sub) + return arch_atomic_fetch_sub(i, v); +#else +#error "Unable to define raw_atomic_fetch_sub_relaxed" +#endif +} + +/** + * raw_atomic_inc() - atomic increment with relaxed ordering + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v + 1) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic_inc() elsewhere. + * + * Return: Nothing. + */ +static __always_inline void +raw_atomic_inc(atomic_t *v) +{ +#if defined(arch_atomic_inc) + arch_atomic_inc(v); +#else + raw_atomic_add(1, v); +#endif +} + +/** + * raw_atomic_inc_return() - atomic increment with full ordering + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v + 1) with full ordering. + * + * Safe to use in noinstr code; prefer atomic_inc_return() elsewhere. + * + * Return: The updated value of @v. + */ +static __always_inline int +raw_atomic_inc_return(atomic_t *v) +{ +#if defined(arch_atomic_inc_return) + return arch_atomic_inc_return(v); +#elif defined(arch_atomic_inc_return_relaxed) + int ret; + __atomic_pre_full_fence(); + ret = arch_atomic_inc_return_relaxed(v); + __atomic_post_full_fence(); + return ret; +#else + return raw_atomic_add_return(1, v); +#endif +} + +/** + * raw_atomic_inc_return_acquire() - atomic increment with acquire ordering + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v + 1) with acquire ordering. + * + * Safe to use in noinstr code; prefer atomic_inc_return_acquire() elsewhere. + * + * Return: The updated value of @v. + */ +static __always_inline int +raw_atomic_inc_return_acquire(atomic_t *v) +{ +#if defined(arch_atomic_inc_return_acquire) + return arch_atomic_inc_return_acquire(v); +#elif defined(arch_atomic_inc_return_relaxed) + int ret = arch_atomic_inc_return_relaxed(v); + __atomic_acquire_fence(); + return ret; +#elif defined(arch_atomic_inc_return) + return arch_atomic_inc_return(v); +#else + return raw_atomic_add_return_acquire(1, v); +#endif +} + +/** + * raw_atomic_inc_return_release() - atomic increment with release ordering + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v + 1) with release ordering. + * + * Safe to use in noinstr code; prefer atomic_inc_return_release() elsewhere. + * + * Return: The updated value of @v. + */ +static __always_inline int +raw_atomic_inc_return_release(atomic_t *v) +{ +#if defined(arch_atomic_inc_return_release) + return arch_atomic_inc_return_release(v); +#elif defined(arch_atomic_inc_return_relaxed) + __atomic_release_fence(); + return arch_atomic_inc_return_relaxed(v); +#elif defined(arch_atomic_inc_return) + return arch_atomic_inc_return(v); +#else + return raw_atomic_add_return_release(1, v); +#endif +} + +/** + * raw_atomic_inc_return_relaxed() - atomic increment with relaxed ordering + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v + 1) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic_inc_return_relaxed() elsewhere. + * + * Return: The updated value of @v. + */ +static __always_inline int +raw_atomic_inc_return_relaxed(atomic_t *v) +{ +#if defined(arch_atomic_inc_return_relaxed) + return arch_atomic_inc_return_relaxed(v); +#elif defined(arch_atomic_inc_return) + return arch_atomic_inc_return(v); +#else + return raw_atomic_add_return_relaxed(1, v); +#endif +} + +/** + * raw_atomic_fetch_inc() - atomic increment with full ordering + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v + 1) with full ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_inc() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_inc(atomic_t *v) +{ +#if defined(arch_atomic_fetch_inc) + return arch_atomic_fetch_inc(v); +#elif defined(arch_atomic_fetch_inc_relaxed) + int ret; + __atomic_pre_full_fence(); + ret = arch_atomic_fetch_inc_relaxed(v); + __atomic_post_full_fence(); + return ret; +#else + return raw_atomic_fetch_add(1, v); +#endif +} + +/** + * raw_atomic_fetch_inc_acquire() - atomic increment with acquire ordering + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v + 1) with acquire ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_inc_acquire() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_inc_acquire(atomic_t *v) +{ +#if defined(arch_atomic_fetch_inc_acquire) + return arch_atomic_fetch_inc_acquire(v); +#elif defined(arch_atomic_fetch_inc_relaxed) + int ret = arch_atomic_fetch_inc_relaxed(v); + __atomic_acquire_fence(); + return ret; +#elif defined(arch_atomic_fetch_inc) + return arch_atomic_fetch_inc(v); +#else + return raw_atomic_fetch_add_acquire(1, v); +#endif +} + +/** + * raw_atomic_fetch_inc_release() - atomic increment with release ordering + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v + 1) with release ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_inc_release() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_inc_release(atomic_t *v) +{ +#if defined(arch_atomic_fetch_inc_release) + return arch_atomic_fetch_inc_release(v); +#elif defined(arch_atomic_fetch_inc_relaxed) + __atomic_release_fence(); + return arch_atomic_fetch_inc_relaxed(v); +#elif defined(arch_atomic_fetch_inc) + return arch_atomic_fetch_inc(v); +#else + return raw_atomic_fetch_add_release(1, v); +#endif +} + +/** + * raw_atomic_fetch_inc_relaxed() - atomic increment with relaxed ordering + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v + 1) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_inc_relaxed() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_inc_relaxed(atomic_t *v) +{ +#if defined(arch_atomic_fetch_inc_relaxed) + return arch_atomic_fetch_inc_relaxed(v); +#elif defined(arch_atomic_fetch_inc) + return arch_atomic_fetch_inc(v); +#else + return raw_atomic_fetch_add_relaxed(1, v); +#endif +} + +/** + * raw_atomic_dec() - atomic decrement with relaxed ordering + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v - 1) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic_dec() elsewhere. + * + * Return: Nothing. + */ +static __always_inline void +raw_atomic_dec(atomic_t *v) +{ +#if defined(arch_atomic_dec) + arch_atomic_dec(v); +#else + raw_atomic_sub(1, v); +#endif +} + +/** + * raw_atomic_dec_return() - atomic decrement with full ordering + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v - 1) with full ordering. + * + * Safe to use in noinstr code; prefer atomic_dec_return() elsewhere. + * + * Return: The updated value of @v. + */ +static __always_inline int +raw_atomic_dec_return(atomic_t *v) +{ +#if defined(arch_atomic_dec_return) + return arch_atomic_dec_return(v); +#elif defined(arch_atomic_dec_return_relaxed) + int ret; + __atomic_pre_full_fence(); + ret = arch_atomic_dec_return_relaxed(v); + __atomic_post_full_fence(); + return ret; +#else + return raw_atomic_sub_return(1, v); +#endif +} + +/** + * raw_atomic_dec_return_acquire() - atomic decrement with acquire ordering + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v - 1) with acquire ordering. + * + * Safe to use in noinstr code; prefer atomic_dec_return_acquire() elsewhere. + * + * Return: The updated value of @v. + */ +static __always_inline int +raw_atomic_dec_return_acquire(atomic_t *v) +{ +#if defined(arch_atomic_dec_return_acquire) + return arch_atomic_dec_return_acquire(v); +#elif defined(arch_atomic_dec_return_relaxed) + int ret = arch_atomic_dec_return_relaxed(v); + __atomic_acquire_fence(); + return ret; +#elif defined(arch_atomic_dec_return) + return arch_atomic_dec_return(v); +#else + return raw_atomic_sub_return_acquire(1, v); +#endif +} + +/** + * raw_atomic_dec_return_release() - atomic decrement with release ordering + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v - 1) with release ordering. + * + * Safe to use in noinstr code; prefer atomic_dec_return_release() elsewhere. + * + * Return: The updated value of @v. + */ +static __always_inline int +raw_atomic_dec_return_release(atomic_t *v) +{ +#if defined(arch_atomic_dec_return_release) + return arch_atomic_dec_return_release(v); +#elif defined(arch_atomic_dec_return_relaxed) + __atomic_release_fence(); + return arch_atomic_dec_return_relaxed(v); +#elif defined(arch_atomic_dec_return) + return arch_atomic_dec_return(v); +#else + return raw_atomic_sub_return_release(1, v); +#endif +} + +/** + * raw_atomic_dec_return_relaxed() - atomic decrement with relaxed ordering + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v - 1) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic_dec_return_relaxed() elsewhere. + * + * Return: The updated value of @v. + */ +static __always_inline int +raw_atomic_dec_return_relaxed(atomic_t *v) +{ +#if defined(arch_atomic_dec_return_relaxed) + return arch_atomic_dec_return_relaxed(v); +#elif defined(arch_atomic_dec_return) + return arch_atomic_dec_return(v); +#else + return raw_atomic_sub_return_relaxed(1, v); +#endif +} + +/** + * raw_atomic_fetch_dec() - atomic decrement with full ordering + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v - 1) with full ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_dec() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_dec(atomic_t *v) +{ +#if defined(arch_atomic_fetch_dec) + return arch_atomic_fetch_dec(v); +#elif defined(arch_atomic_fetch_dec_relaxed) + int ret; + __atomic_pre_full_fence(); + ret = arch_atomic_fetch_dec_relaxed(v); + __atomic_post_full_fence(); + return ret; +#else + return raw_atomic_fetch_sub(1, v); +#endif +} + +/** + * raw_atomic_fetch_dec_acquire() - atomic decrement with acquire ordering + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v - 1) with acquire ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_dec_acquire() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_dec_acquire(atomic_t *v) +{ +#if defined(arch_atomic_fetch_dec_acquire) + return arch_atomic_fetch_dec_acquire(v); +#elif defined(arch_atomic_fetch_dec_relaxed) + int ret = arch_atomic_fetch_dec_relaxed(v); + __atomic_acquire_fence(); + return ret; +#elif defined(arch_atomic_fetch_dec) + return arch_atomic_fetch_dec(v); +#else + return raw_atomic_fetch_sub_acquire(1, v); +#endif +} + +/** + * raw_atomic_fetch_dec_release() - atomic decrement with release ordering + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v - 1) with release ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_dec_release() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_dec_release(atomic_t *v) +{ +#if defined(arch_atomic_fetch_dec_release) + return arch_atomic_fetch_dec_release(v); +#elif defined(arch_atomic_fetch_dec_relaxed) + __atomic_release_fence(); + return arch_atomic_fetch_dec_relaxed(v); +#elif defined(arch_atomic_fetch_dec) + return arch_atomic_fetch_dec(v); +#else + return raw_atomic_fetch_sub_release(1, v); +#endif +} + +/** + * raw_atomic_fetch_dec_relaxed() - atomic decrement with relaxed ordering + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v - 1) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_dec_relaxed() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_dec_relaxed(atomic_t *v) +{ +#if defined(arch_atomic_fetch_dec_relaxed) + return arch_atomic_fetch_dec_relaxed(v); +#elif defined(arch_atomic_fetch_dec) + return arch_atomic_fetch_dec(v); +#else + return raw_atomic_fetch_sub_relaxed(1, v); +#endif +} + +/** + * raw_atomic_and() - atomic bitwise AND with relaxed ordering + * @i: int value + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v & @i) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic_and() elsewhere. + * + * Return: Nothing. + */ +static __always_inline void +raw_atomic_and(int i, atomic_t *v) +{ + arch_atomic_and(i, v); +} + +/** + * raw_atomic_fetch_and() - atomic bitwise AND with full ordering + * @i: int value + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v & @i) with full ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_and() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_and(int i, atomic_t *v) +{ +#if defined(arch_atomic_fetch_and) + return arch_atomic_fetch_and(i, v); +#elif defined(arch_atomic_fetch_and_relaxed) + int ret; + __atomic_pre_full_fence(); + ret = arch_atomic_fetch_and_relaxed(i, v); + __atomic_post_full_fence(); + return ret; +#else +#error "Unable to define raw_atomic_fetch_and" +#endif +} + +/** + * raw_atomic_fetch_and_acquire() - atomic bitwise AND with acquire ordering + * @i: int value + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v & @i) with acquire ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_and_acquire() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_and_acquire(int i, atomic_t *v) +{ +#if defined(arch_atomic_fetch_and_acquire) + return arch_atomic_fetch_and_acquire(i, v); +#elif defined(arch_atomic_fetch_and_relaxed) + int ret = arch_atomic_fetch_and_relaxed(i, v); + __atomic_acquire_fence(); + return ret; +#elif defined(arch_atomic_fetch_and) + return arch_atomic_fetch_and(i, v); +#else +#error "Unable to define raw_atomic_fetch_and_acquire" +#endif +} + +/** + * raw_atomic_fetch_and_release() - atomic bitwise AND with release ordering + * @i: int value + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v & @i) with release ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_and_release() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_and_release(int i, atomic_t *v) +{ +#if defined(arch_atomic_fetch_and_release) + return arch_atomic_fetch_and_release(i, v); +#elif defined(arch_atomic_fetch_and_relaxed) + __atomic_release_fence(); + return arch_atomic_fetch_and_relaxed(i, v); +#elif defined(arch_atomic_fetch_and) + return arch_atomic_fetch_and(i, v); +#else +#error "Unable to define raw_atomic_fetch_and_release" +#endif +} + +/** + * raw_atomic_fetch_and_relaxed() - atomic bitwise AND with relaxed ordering + * @i: int value + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v & @i) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_and_relaxed() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_and_relaxed(int i, atomic_t *v) +{ +#if defined(arch_atomic_fetch_and_relaxed) + return arch_atomic_fetch_and_relaxed(i, v); +#elif defined(arch_atomic_fetch_and) + return arch_atomic_fetch_and(i, v); +#else +#error "Unable to define raw_atomic_fetch_and_relaxed" +#endif +} + +/** + * raw_atomic_andnot() - atomic bitwise AND NOT with relaxed ordering + * @i: int value + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v & ~@i) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic_andnot() elsewhere. + * + * Return: Nothing. + */ +static __always_inline void +raw_atomic_andnot(int i, atomic_t *v) +{ +#if defined(arch_atomic_andnot) + arch_atomic_andnot(i, v); +#else + raw_atomic_and(~i, v); +#endif +} + +/** + * raw_atomic_fetch_andnot() - atomic bitwise AND NOT with full ordering + * @i: int value + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v & ~@i) with full ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_andnot() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_andnot(int i, atomic_t *v) +{ +#if defined(arch_atomic_fetch_andnot) + return arch_atomic_fetch_andnot(i, v); +#elif defined(arch_atomic_fetch_andnot_relaxed) + int ret; + __atomic_pre_full_fence(); + ret = arch_atomic_fetch_andnot_relaxed(i, v); + __atomic_post_full_fence(); + return ret; +#else + return raw_atomic_fetch_and(~i, v); +#endif +} + +/** + * raw_atomic_fetch_andnot_acquire() - atomic bitwise AND NOT with acquire ordering + * @i: int value + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v & ~@i) with acquire ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_andnot_acquire() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_andnot_acquire(int i, atomic_t *v) +{ +#if defined(arch_atomic_fetch_andnot_acquire) + return arch_atomic_fetch_andnot_acquire(i, v); +#elif defined(arch_atomic_fetch_andnot_relaxed) + int ret = arch_atomic_fetch_andnot_relaxed(i, v); + __atomic_acquire_fence(); + return ret; +#elif defined(arch_atomic_fetch_andnot) + return arch_atomic_fetch_andnot(i, v); +#else + return raw_atomic_fetch_and_acquire(~i, v); +#endif +} + +/** + * raw_atomic_fetch_andnot_release() - atomic bitwise AND NOT with release ordering + * @i: int value + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v & ~@i) with release ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_andnot_release() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_andnot_release(int i, atomic_t *v) +{ +#if defined(arch_atomic_fetch_andnot_release) + return arch_atomic_fetch_andnot_release(i, v); +#elif defined(arch_atomic_fetch_andnot_relaxed) + __atomic_release_fence(); + return arch_atomic_fetch_andnot_relaxed(i, v); +#elif defined(arch_atomic_fetch_andnot) + return arch_atomic_fetch_andnot(i, v); +#else + return raw_atomic_fetch_and_release(~i, v); +#endif +} + +/** + * raw_atomic_fetch_andnot_relaxed() - atomic bitwise AND NOT with relaxed ordering + * @i: int value + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v & ~@i) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_andnot_relaxed() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_andnot_relaxed(int i, atomic_t *v) +{ +#if defined(arch_atomic_fetch_andnot_relaxed) + return arch_atomic_fetch_andnot_relaxed(i, v); +#elif defined(arch_atomic_fetch_andnot) + return arch_atomic_fetch_andnot(i, v); +#else + return raw_atomic_fetch_and_relaxed(~i, v); +#endif +} + +/** + * raw_atomic_or() - atomic bitwise OR with relaxed ordering + * @i: int value + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v | @i) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic_or() elsewhere. + * + * Return: Nothing. + */ +static __always_inline void +raw_atomic_or(int i, atomic_t *v) +{ + arch_atomic_or(i, v); +} + +/** + * raw_atomic_fetch_or() - atomic bitwise OR with full ordering + * @i: int value + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v | @i) with full ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_or() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_or(int i, atomic_t *v) +{ +#if defined(arch_atomic_fetch_or) + return arch_atomic_fetch_or(i, v); +#elif defined(arch_atomic_fetch_or_relaxed) + int ret; + __atomic_pre_full_fence(); + ret = arch_atomic_fetch_or_relaxed(i, v); + __atomic_post_full_fence(); + return ret; +#else +#error "Unable to define raw_atomic_fetch_or" +#endif +} + +/** + * raw_atomic_fetch_or_acquire() - atomic bitwise OR with acquire ordering + * @i: int value + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v | @i) with acquire ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_or_acquire() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_or_acquire(int i, atomic_t *v) +{ +#if defined(arch_atomic_fetch_or_acquire) + return arch_atomic_fetch_or_acquire(i, v); +#elif defined(arch_atomic_fetch_or_relaxed) + int ret = arch_atomic_fetch_or_relaxed(i, v); + __atomic_acquire_fence(); + return ret; +#elif defined(arch_atomic_fetch_or) + return arch_atomic_fetch_or(i, v); +#else +#error "Unable to define raw_atomic_fetch_or_acquire" +#endif +} + +/** + * raw_atomic_fetch_or_release() - atomic bitwise OR with release ordering + * @i: int value + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v | @i) with release ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_or_release() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_or_release(int i, atomic_t *v) +{ +#if defined(arch_atomic_fetch_or_release) + return arch_atomic_fetch_or_release(i, v); +#elif defined(arch_atomic_fetch_or_relaxed) + __atomic_release_fence(); + return arch_atomic_fetch_or_relaxed(i, v); +#elif defined(arch_atomic_fetch_or) + return arch_atomic_fetch_or(i, v); +#else +#error "Unable to define raw_atomic_fetch_or_release" +#endif +} + +/** + * raw_atomic_fetch_or_relaxed() - atomic bitwise OR with relaxed ordering + * @i: int value + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v | @i) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_or_relaxed() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_or_relaxed(int i, atomic_t *v) +{ +#if defined(arch_atomic_fetch_or_relaxed) + return arch_atomic_fetch_or_relaxed(i, v); +#elif defined(arch_atomic_fetch_or) + return arch_atomic_fetch_or(i, v); +#else +#error "Unable to define raw_atomic_fetch_or_relaxed" +#endif +} + +/** + * raw_atomic_xor() - atomic bitwise XOR with relaxed ordering + * @i: int value + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v ^ @i) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic_xor() elsewhere. + * + * Return: Nothing. + */ +static __always_inline void +raw_atomic_xor(int i, atomic_t *v) +{ + arch_atomic_xor(i, v); +} + +/** + * raw_atomic_fetch_xor() - atomic bitwise XOR with full ordering + * @i: int value + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v ^ @i) with full ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_xor() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_xor(int i, atomic_t *v) +{ +#if defined(arch_atomic_fetch_xor) + return arch_atomic_fetch_xor(i, v); +#elif defined(arch_atomic_fetch_xor_relaxed) + int ret; + __atomic_pre_full_fence(); + ret = arch_atomic_fetch_xor_relaxed(i, v); + __atomic_post_full_fence(); + return ret; +#else +#error "Unable to define raw_atomic_fetch_xor" +#endif +} + +/** + * raw_atomic_fetch_xor_acquire() - atomic bitwise XOR with acquire ordering + * @i: int value + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v ^ @i) with acquire ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_xor_acquire() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_xor_acquire(int i, atomic_t *v) +{ +#if defined(arch_atomic_fetch_xor_acquire) + return arch_atomic_fetch_xor_acquire(i, v); +#elif defined(arch_atomic_fetch_xor_relaxed) + int ret = arch_atomic_fetch_xor_relaxed(i, v); + __atomic_acquire_fence(); + return ret; +#elif defined(arch_atomic_fetch_xor) + return arch_atomic_fetch_xor(i, v); +#else +#error "Unable to define raw_atomic_fetch_xor_acquire" +#endif +} + +/** + * raw_atomic_fetch_xor_release() - atomic bitwise XOR with release ordering + * @i: int value + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v ^ @i) with release ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_xor_release() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_xor_release(int i, atomic_t *v) +{ +#if defined(arch_atomic_fetch_xor_release) + return arch_atomic_fetch_xor_release(i, v); +#elif defined(arch_atomic_fetch_xor_relaxed) + __atomic_release_fence(); + return arch_atomic_fetch_xor_relaxed(i, v); +#elif defined(arch_atomic_fetch_xor) + return arch_atomic_fetch_xor(i, v); +#else +#error "Unable to define raw_atomic_fetch_xor_release" +#endif +} + +/** + * raw_atomic_fetch_xor_relaxed() - atomic bitwise XOR with relaxed ordering + * @i: int value + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v ^ @i) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_xor_relaxed() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_xor_relaxed(int i, atomic_t *v) +{ +#if defined(arch_atomic_fetch_xor_relaxed) + return arch_atomic_fetch_xor_relaxed(i, v); +#elif defined(arch_atomic_fetch_xor) + return arch_atomic_fetch_xor(i, v); +#else +#error "Unable to define raw_atomic_fetch_xor_relaxed" +#endif +} + +/** + * raw_atomic_xchg() - atomic exchange with full ordering + * @v: pointer to atomic_t + * @new: int value to assign + * + * Atomically updates @v to @new with full ordering. + * + * Safe to use in noinstr code; prefer atomic_xchg() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_xchg(atomic_t *v, int new) +{ +#if defined(arch_atomic_xchg) + return arch_atomic_xchg(v, new); +#elif defined(arch_atomic_xchg_relaxed) + int ret; + __atomic_pre_full_fence(); + ret = arch_atomic_xchg_relaxed(v, new); + __atomic_post_full_fence(); + return ret; +#else + return raw_xchg(&v->counter, new); +#endif +} + +/** + * raw_atomic_xchg_acquire() - atomic exchange with acquire ordering + * @v: pointer to atomic_t + * @new: int value to assign + * + * Atomically updates @v to @new with acquire ordering. + * + * Safe to use in noinstr code; prefer atomic_xchg_acquire() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_xchg_acquire(atomic_t *v, int new) +{ +#if defined(arch_atomic_xchg_acquire) + return arch_atomic_xchg_acquire(v, new); +#elif defined(arch_atomic_xchg_relaxed) + int ret = arch_atomic_xchg_relaxed(v, new); + __atomic_acquire_fence(); + return ret; +#elif defined(arch_atomic_xchg) + return arch_atomic_xchg(v, new); +#else + return raw_xchg_acquire(&v->counter, new); +#endif +} + +/** + * raw_atomic_xchg_release() - atomic exchange with release ordering + * @v: pointer to atomic_t + * @new: int value to assign + * + * Atomically updates @v to @new with release ordering. + * + * Safe to use in noinstr code; prefer atomic_xchg_release() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_xchg_release(atomic_t *v, int new) +{ +#if defined(arch_atomic_xchg_release) + return arch_atomic_xchg_release(v, new); +#elif defined(arch_atomic_xchg_relaxed) + __atomic_release_fence(); + return arch_atomic_xchg_relaxed(v, new); +#elif defined(arch_atomic_xchg) + return arch_atomic_xchg(v, new); +#else + return raw_xchg_release(&v->counter, new); +#endif +} + +/** + * raw_atomic_xchg_relaxed() - atomic exchange with relaxed ordering + * @v: pointer to atomic_t + * @new: int value to assign + * + * Atomically updates @v to @new with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic_xchg_relaxed() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_xchg_relaxed(atomic_t *v, int new) +{ +#if defined(arch_atomic_xchg_relaxed) + return arch_atomic_xchg_relaxed(v, new); +#elif defined(arch_atomic_xchg) + return arch_atomic_xchg(v, new); +#else + return raw_xchg_relaxed(&v->counter, new); +#endif +} + +/** + * raw_atomic_cmpxchg() - atomic compare and exchange with full ordering + * @v: pointer to atomic_t + * @old: int value to compare with + * @new: int value to assign + * + * If (@v == @old), atomically updates @v to @new with full ordering. + * + * Safe to use in noinstr code; prefer atomic_cmpxchg() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_cmpxchg(atomic_t *v, int old, int new) +{ +#if defined(arch_atomic_cmpxchg) + return arch_atomic_cmpxchg(v, old, new); +#elif defined(arch_atomic_cmpxchg_relaxed) + int ret; + __atomic_pre_full_fence(); + ret = arch_atomic_cmpxchg_relaxed(v, old, new); + __atomic_post_full_fence(); + return ret; +#else + return raw_cmpxchg(&v->counter, old, new); +#endif +} + +/** + * raw_atomic_cmpxchg_acquire() - atomic compare and exchange with acquire ordering + * @v: pointer to atomic_t + * @old: int value to compare with + * @new: int value to assign + * + * If (@v == @old), atomically updates @v to @new with acquire ordering. + * + * Safe to use in noinstr code; prefer atomic_cmpxchg_acquire() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_cmpxchg_acquire(atomic_t *v, int old, int new) +{ +#if defined(arch_atomic_cmpxchg_acquire) + return arch_atomic_cmpxchg_acquire(v, old, new); +#elif defined(arch_atomic_cmpxchg_relaxed) + int ret = arch_atomic_cmpxchg_relaxed(v, old, new); + __atomic_acquire_fence(); + return ret; +#elif defined(arch_atomic_cmpxchg) + return arch_atomic_cmpxchg(v, old, new); +#else + return raw_cmpxchg_acquire(&v->counter, old, new); +#endif +} + +/** + * raw_atomic_cmpxchg_release() - atomic compare and exchange with release ordering + * @v: pointer to atomic_t + * @old: int value to compare with + * @new: int value to assign + * + * If (@v == @old), atomically updates @v to @new with release ordering. + * + * Safe to use in noinstr code; prefer atomic_cmpxchg_release() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_cmpxchg_release(atomic_t *v, int old, int new) +{ +#if defined(arch_atomic_cmpxchg_release) + return arch_atomic_cmpxchg_release(v, old, new); +#elif defined(arch_atomic_cmpxchg_relaxed) + __atomic_release_fence(); + return arch_atomic_cmpxchg_relaxed(v, old, new); +#elif defined(arch_atomic_cmpxchg) + return arch_atomic_cmpxchg(v, old, new); +#else + return raw_cmpxchg_release(&v->counter, old, new); +#endif +} + +/** + * raw_atomic_cmpxchg_relaxed() - atomic compare and exchange with relaxed ordering + * @v: pointer to atomic_t + * @old: int value to compare with + * @new: int value to assign + * + * If (@v == @old), atomically updates @v to @new with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic_cmpxchg_relaxed() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_cmpxchg_relaxed(atomic_t *v, int old, int new) +{ +#if defined(arch_atomic_cmpxchg_relaxed) + return arch_atomic_cmpxchg_relaxed(v, old, new); +#elif defined(arch_atomic_cmpxchg) + return arch_atomic_cmpxchg(v, old, new); +#else + return raw_cmpxchg_relaxed(&v->counter, old, new); +#endif +} + +/** + * raw_atomic_try_cmpxchg() - atomic compare and exchange with full ordering + * @v: pointer to atomic_t + * @old: pointer to int value to compare with + * @new: int value to assign + * + * If (@v == @old), atomically updates @v to @new with full ordering. + * Otherwise, updates @old to the current value of @v. + * + * Safe to use in noinstr code; prefer atomic_try_cmpxchg() elsewhere. + * + * Return: @true if the exchange occured, @false otherwise. + */ +static __always_inline bool +raw_atomic_try_cmpxchg(atomic_t *v, int *old, int new) +{ +#if defined(arch_atomic_try_cmpxchg) + return arch_atomic_try_cmpxchg(v, old, new); +#elif defined(arch_atomic_try_cmpxchg_relaxed) + bool ret; + __atomic_pre_full_fence(); + ret = arch_atomic_try_cmpxchg_relaxed(v, old, new); + __atomic_post_full_fence(); + return ret; +#else + int r, o = *old; + r = raw_atomic_cmpxchg(v, o, new); + if (unlikely(r != o)) + *old = r; + return likely(r == o); +#endif +} + +/** + * raw_atomic_try_cmpxchg_acquire() - atomic compare and exchange with acquire ordering + * @v: pointer to atomic_t + * @old: pointer to int value to compare with + * @new: int value to assign + * + * If (@v == @old), atomically updates @v to @new with acquire ordering. + * Otherwise, updates @old to the current value of @v. + * + * Safe to use in noinstr code; prefer atomic_try_cmpxchg_acquire() elsewhere. + * + * Return: @true if the exchange occured, @false otherwise. + */ +static __always_inline bool +raw_atomic_try_cmpxchg_acquire(atomic_t *v, int *old, int new) +{ +#if defined(arch_atomic_try_cmpxchg_acquire) + return arch_atomic_try_cmpxchg_acquire(v, old, new); +#elif defined(arch_atomic_try_cmpxchg_relaxed) + bool ret = arch_atomic_try_cmpxchg_relaxed(v, old, new); + __atomic_acquire_fence(); + return ret; +#elif defined(arch_atomic_try_cmpxchg) + return arch_atomic_try_cmpxchg(v, old, new); +#else + int r, o = *old; + r = raw_atomic_cmpxchg_acquire(v, o, new); + if (unlikely(r != o)) + *old = r; + return likely(r == o); +#endif +} + +/** + * raw_atomic_try_cmpxchg_release() - atomic compare and exchange with release ordering + * @v: pointer to atomic_t + * @old: pointer to int value to compare with + * @new: int value to assign + * + * If (@v == @old), atomically updates @v to @new with release ordering. + * Otherwise, updates @old to the current value of @v. + * + * Safe to use in noinstr code; prefer atomic_try_cmpxchg_release() elsewhere. + * + * Return: @true if the exchange occured, @false otherwise. + */ +static __always_inline bool +raw_atomic_try_cmpxchg_release(atomic_t *v, int *old, int new) +{ +#if defined(arch_atomic_try_cmpxchg_release) + return arch_atomic_try_cmpxchg_release(v, old, new); +#elif defined(arch_atomic_try_cmpxchg_relaxed) + __atomic_release_fence(); + return arch_atomic_try_cmpxchg_relaxed(v, old, new); +#elif defined(arch_atomic_try_cmpxchg) + return arch_atomic_try_cmpxchg(v, old, new); +#else + int r, o = *old; + r = raw_atomic_cmpxchg_release(v, o, new); + if (unlikely(r != o)) + *old = r; + return likely(r == o); +#endif +} + +/** + * raw_atomic_try_cmpxchg_relaxed() - atomic compare and exchange with relaxed ordering + * @v: pointer to atomic_t + * @old: pointer to int value to compare with + * @new: int value to assign + * + * If (@v == @old), atomically updates @v to @new with relaxed ordering. + * Otherwise, updates @old to the current value of @v. + * + * Safe to use in noinstr code; prefer atomic_try_cmpxchg_relaxed() elsewhere. + * + * Return: @true if the exchange occured, @false otherwise. + */ +static __always_inline bool +raw_atomic_try_cmpxchg_relaxed(atomic_t *v, int *old, int new) +{ +#if defined(arch_atomic_try_cmpxchg_relaxed) + return arch_atomic_try_cmpxchg_relaxed(v, old, new); +#elif defined(arch_atomic_try_cmpxchg) + return arch_atomic_try_cmpxchg(v, old, new); +#else + int r, o = *old; + r = raw_atomic_cmpxchg_relaxed(v, o, new); + if (unlikely(r != o)) + *old = r; + return likely(r == o); +#endif +} + +/** + * raw_atomic_sub_and_test() - atomic subtract and test if zero with full ordering + * @i: int value to add + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v - @i) with full ordering. + * + * Safe to use in noinstr code; prefer atomic_sub_and_test() elsewhere. + * + * Return: @true if the resulting value of @v is zero, @false otherwise. + */ +static __always_inline bool +raw_atomic_sub_and_test(int i, atomic_t *v) +{ +#if defined(arch_atomic_sub_and_test) + return arch_atomic_sub_and_test(i, v); +#else + return raw_atomic_sub_return(i, v) == 0; +#endif +} + +/** + * raw_atomic_dec_and_test() - atomic decrement and test if zero with full ordering + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v - 1) with full ordering. + * + * Safe to use in noinstr code; prefer atomic_dec_and_test() elsewhere. + * + * Return: @true if the resulting value of @v is zero, @false otherwise. + */ +static __always_inline bool +raw_atomic_dec_and_test(atomic_t *v) +{ +#if defined(arch_atomic_dec_and_test) + return arch_atomic_dec_and_test(v); +#else + return raw_atomic_dec_return(v) == 0; +#endif +} + +/** + * raw_atomic_inc_and_test() - atomic increment and test if zero with full ordering + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v + 1) with full ordering. + * + * Safe to use in noinstr code; prefer atomic_inc_and_test() elsewhere. + * + * Return: @true if the resulting value of @v is zero, @false otherwise. + */ +static __always_inline bool +raw_atomic_inc_and_test(atomic_t *v) +{ +#if defined(arch_atomic_inc_and_test) + return arch_atomic_inc_and_test(v); +#else + return raw_atomic_inc_return(v) == 0; +#endif +} + +/** + * raw_atomic_add_negative() - atomic add and test if negative with full ordering + * @i: int value to add + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v + @i) with full ordering. + * + * Safe to use in noinstr code; prefer atomic_add_negative() elsewhere. + * + * Return: @true if the resulting value of @v is negative, @false otherwise. + */ +static __always_inline bool +raw_atomic_add_negative(int i, atomic_t *v) +{ +#if defined(arch_atomic_add_negative) + return arch_atomic_add_negative(i, v); +#elif defined(arch_atomic_add_negative_relaxed) + bool ret; + __atomic_pre_full_fence(); + ret = arch_atomic_add_negative_relaxed(i, v); + __atomic_post_full_fence(); + return ret; +#else + return raw_atomic_add_return(i, v) < 0; +#endif +} + +/** + * raw_atomic_add_negative_acquire() - atomic add and test if negative with acquire ordering + * @i: int value to add + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v + @i) with acquire ordering. + * + * Safe to use in noinstr code; prefer atomic_add_negative_acquire() elsewhere. + * + * Return: @true if the resulting value of @v is negative, @false otherwise. + */ +static __always_inline bool +raw_atomic_add_negative_acquire(int i, atomic_t *v) +{ +#if defined(arch_atomic_add_negative_acquire) + return arch_atomic_add_negative_acquire(i, v); +#elif defined(arch_atomic_add_negative_relaxed) + bool ret = arch_atomic_add_negative_relaxed(i, v); + __atomic_acquire_fence(); + return ret; +#elif defined(arch_atomic_add_negative) + return arch_atomic_add_negative(i, v); +#else + return raw_atomic_add_return_acquire(i, v) < 0; +#endif +} + +/** + * raw_atomic_add_negative_release() - atomic add and test if negative with release ordering + * @i: int value to add + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v + @i) with release ordering. + * + * Safe to use in noinstr code; prefer atomic_add_negative_release() elsewhere. + * + * Return: @true if the resulting value of @v is negative, @false otherwise. + */ +static __always_inline bool +raw_atomic_add_negative_release(int i, atomic_t *v) +{ +#if defined(arch_atomic_add_negative_release) + return arch_atomic_add_negative_release(i, v); +#elif defined(arch_atomic_add_negative_relaxed) + __atomic_release_fence(); + return arch_atomic_add_negative_relaxed(i, v); +#elif defined(arch_atomic_add_negative) + return arch_atomic_add_negative(i, v); +#else + return raw_atomic_add_return_release(i, v) < 0; +#endif +} + +/** + * raw_atomic_add_negative_relaxed() - atomic add and test if negative with relaxed ordering + * @i: int value to add + * @v: pointer to atomic_t + * + * Atomically updates @v to (@v + @i) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic_add_negative_relaxed() elsewhere. + * + * Return: @true if the resulting value of @v is negative, @false otherwise. + */ +static __always_inline bool +raw_atomic_add_negative_relaxed(int i, atomic_t *v) +{ +#if defined(arch_atomic_add_negative_relaxed) + return arch_atomic_add_negative_relaxed(i, v); +#elif defined(arch_atomic_add_negative) + return arch_atomic_add_negative(i, v); +#else + return raw_atomic_add_return_relaxed(i, v) < 0; +#endif +} + +/** + * raw_atomic_fetch_add_unless() - atomic add unless value with full ordering + * @v: pointer to atomic_t + * @a: int value to add + * @u: int value to compare with + * + * If (@v != @u), atomically updates @v to (@v + @a) with full ordering. + * + * Safe to use in noinstr code; prefer atomic_fetch_add_unless() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline int +raw_atomic_fetch_add_unless(atomic_t *v, int a, int u) +{ +#if defined(arch_atomic_fetch_add_unless) + return arch_atomic_fetch_add_unless(v, a, u); +#else + int c = raw_atomic_read(v); + + do { + if (unlikely(c == u)) + break; + } while (!raw_atomic_try_cmpxchg(v, &c, c + a)); + + return c; +#endif +} + +/** + * raw_atomic_add_unless() - atomic add unless value with full ordering + * @v: pointer to atomic_t + * @a: int value to add + * @u: int value to compare with + * + * If (@v != @u), atomically updates @v to (@v + @a) with full ordering. + * + * Safe to use in noinstr code; prefer atomic_add_unless() elsewhere. + * + * Return: @true if @v was updated, @false otherwise. + */ +static __always_inline bool +raw_atomic_add_unless(atomic_t *v, int a, int u) +{ +#if defined(arch_atomic_add_unless) + return arch_atomic_add_unless(v, a, u); +#else + return raw_atomic_fetch_add_unless(v, a, u) != u; +#endif +} + +/** + * raw_atomic_inc_not_zero() - atomic increment unless zero with full ordering + * @v: pointer to atomic_t + * + * If (@v != 0), atomically updates @v to (@v + 1) with full ordering. + * + * Safe to use in noinstr code; prefer atomic_inc_not_zero() elsewhere. + * + * Return: @true if @v was updated, @false otherwise. + */ +static __always_inline bool +raw_atomic_inc_not_zero(atomic_t *v) +{ +#if defined(arch_atomic_inc_not_zero) + return arch_atomic_inc_not_zero(v); +#else + return raw_atomic_add_unless(v, 1, 0); +#endif +} + +/** + * raw_atomic_inc_unless_negative() - atomic increment unless negative with full ordering + * @v: pointer to atomic_t + * + * If (@v >= 0), atomically updates @v to (@v + 1) with full ordering. + * + * Safe to use in noinstr code; prefer atomic_inc_unless_negative() elsewhere. + * + * Return: @true if @v was updated, @false otherwise. + */ +static __always_inline bool +raw_atomic_inc_unless_negative(atomic_t *v) +{ +#if defined(arch_atomic_inc_unless_negative) + return arch_atomic_inc_unless_negative(v); +#else + int c = raw_atomic_read(v); + + do { + if (unlikely(c < 0)) + return false; + } while (!raw_atomic_try_cmpxchg(v, &c, c + 1)); + + return true; +#endif +} + +/** + * raw_atomic_dec_unless_positive() - atomic decrement unless positive with full ordering + * @v: pointer to atomic_t + * + * If (@v <= 0), atomically updates @v to (@v - 1) with full ordering. + * + * Safe to use in noinstr code; prefer atomic_dec_unless_positive() elsewhere. + * + * Return: @true if @v was updated, @false otherwise. + */ +static __always_inline bool +raw_atomic_dec_unless_positive(atomic_t *v) +{ +#if defined(arch_atomic_dec_unless_positive) + return arch_atomic_dec_unless_positive(v); +#else + int c = raw_atomic_read(v); + + do { + if (unlikely(c > 0)) + return false; + } while (!raw_atomic_try_cmpxchg(v, &c, c - 1)); + + return true; +#endif +} + +/** + * raw_atomic_dec_if_positive() - atomic decrement if positive with full ordering + * @v: pointer to atomic_t + * + * If (@v > 0), atomically updates @v to (@v - 1) with full ordering. + * + * Safe to use in noinstr code; prefer atomic_dec_if_positive() elsewhere. + * + * Return: The old value of (@v - 1), regardless of whether @v was updated. + */ +static __always_inline int +raw_atomic_dec_if_positive(atomic_t *v) +{ +#if defined(arch_atomic_dec_if_positive) + return arch_atomic_dec_if_positive(v); +#else + int dec, c = raw_atomic_read(v); + + do { + dec = c - 1; + if (unlikely(dec < 0)) + break; + } while (!raw_atomic_try_cmpxchg(v, &c, dec)); + + return dec; +#endif +} + +#ifdef CONFIG_GENERIC_ATOMIC64 +#include <asm-generic/atomic64.h> +#endif + +/** + * raw_atomic64_read() - atomic load with relaxed ordering + * @v: pointer to atomic64_t + * + * Atomically loads the value of @v with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic64_read() elsewhere. + * + * Return: The value loaded from @v. + */ +static __always_inline s64 +raw_atomic64_read(const atomic64_t *v) +{ + return arch_atomic64_read(v); +} + +/** + * raw_atomic64_read_acquire() - atomic load with acquire ordering + * @v: pointer to atomic64_t + * + * Atomically loads the value of @v with acquire ordering. + * + * Safe to use in noinstr code; prefer atomic64_read_acquire() elsewhere. + * + * Return: The value loaded from @v. + */ +static __always_inline s64 +raw_atomic64_read_acquire(const atomic64_t *v) +{ +#if defined(arch_atomic64_read_acquire) + return arch_atomic64_read_acquire(v); +#else + s64 ret; + + if (__native_word(atomic64_t)) { + ret = smp_load_acquire(&(v)->counter); + } else { + ret = raw_atomic64_read(v); + __atomic_acquire_fence(); + } + + return ret; +#endif +} + +/** + * raw_atomic64_set() - atomic set with relaxed ordering + * @v: pointer to atomic64_t + * @i: s64 value to assign + * + * Atomically sets @v to @i with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic64_set() elsewhere. + * + * Return: Nothing. + */ +static __always_inline void +raw_atomic64_set(atomic64_t *v, s64 i) +{ + arch_atomic64_set(v, i); +} + +/** + * raw_atomic64_set_release() - atomic set with release ordering + * @v: pointer to atomic64_t + * @i: s64 value to assign + * + * Atomically sets @v to @i with release ordering. + * + * Safe to use in noinstr code; prefer atomic64_set_release() elsewhere. + * + * Return: Nothing. + */ +static __always_inline void +raw_atomic64_set_release(atomic64_t *v, s64 i) +{ +#if defined(arch_atomic64_set_release) + arch_atomic64_set_release(v, i); +#else + if (__native_word(atomic64_t)) { + smp_store_release(&(v)->counter, i); + } else { + __atomic_release_fence(); + raw_atomic64_set(v, i); + } +#endif +} + +/** + * raw_atomic64_add() - atomic add with relaxed ordering + * @i: s64 value to add + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v + @i) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic64_add() elsewhere. + * + * Return: Nothing. + */ +static __always_inline void +raw_atomic64_add(s64 i, atomic64_t *v) +{ + arch_atomic64_add(i, v); +} + +/** + * raw_atomic64_add_return() - atomic add with full ordering + * @i: s64 value to add + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v + @i) with full ordering. + * + * Safe to use in noinstr code; prefer atomic64_add_return() elsewhere. + * + * Return: The updated value of @v. + */ +static __always_inline s64 +raw_atomic64_add_return(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_add_return) + return arch_atomic64_add_return(i, v); +#elif defined(arch_atomic64_add_return_relaxed) + s64 ret; + __atomic_pre_full_fence(); + ret = arch_atomic64_add_return_relaxed(i, v); + __atomic_post_full_fence(); + return ret; +#else +#error "Unable to define raw_atomic64_add_return" +#endif +} + +/** + * raw_atomic64_add_return_acquire() - atomic add with acquire ordering + * @i: s64 value to add + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v + @i) with acquire ordering. + * + * Safe to use in noinstr code; prefer atomic64_add_return_acquire() elsewhere. + * + * Return: The updated value of @v. + */ +static __always_inline s64 +raw_atomic64_add_return_acquire(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_add_return_acquire) + return arch_atomic64_add_return_acquire(i, v); +#elif defined(arch_atomic64_add_return_relaxed) + s64 ret = arch_atomic64_add_return_relaxed(i, v); + __atomic_acquire_fence(); + return ret; +#elif defined(arch_atomic64_add_return) + return arch_atomic64_add_return(i, v); +#else +#error "Unable to define raw_atomic64_add_return_acquire" +#endif +} + +/** + * raw_atomic64_add_return_release() - atomic add with release ordering + * @i: s64 value to add + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v + @i) with release ordering. + * + * Safe to use in noinstr code; prefer atomic64_add_return_release() elsewhere. + * + * Return: The updated value of @v. + */ +static __always_inline s64 +raw_atomic64_add_return_release(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_add_return_release) + return arch_atomic64_add_return_release(i, v); +#elif defined(arch_atomic64_add_return_relaxed) + __atomic_release_fence(); + return arch_atomic64_add_return_relaxed(i, v); +#elif defined(arch_atomic64_add_return) + return arch_atomic64_add_return(i, v); +#else +#error "Unable to define raw_atomic64_add_return_release" +#endif +} + +/** + * raw_atomic64_add_return_relaxed() - atomic add with relaxed ordering + * @i: s64 value to add + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v + @i) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic64_add_return_relaxed() elsewhere. + * + * Return: The updated value of @v. + */ +static __always_inline s64 +raw_atomic64_add_return_relaxed(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_add_return_relaxed) + return arch_atomic64_add_return_relaxed(i, v); +#elif defined(arch_atomic64_add_return) + return arch_atomic64_add_return(i, v); +#else +#error "Unable to define raw_atomic64_add_return_relaxed" +#endif +} + +/** + * raw_atomic64_fetch_add() - atomic add with full ordering + * @i: s64 value to add + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v + @i) with full ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_add() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_add(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_fetch_add) + return arch_atomic64_fetch_add(i, v); +#elif defined(arch_atomic64_fetch_add_relaxed) + s64 ret; + __atomic_pre_full_fence(); + ret = arch_atomic64_fetch_add_relaxed(i, v); + __atomic_post_full_fence(); + return ret; +#else +#error "Unable to define raw_atomic64_fetch_add" +#endif +} + +/** + * raw_atomic64_fetch_add_acquire() - atomic add with acquire ordering + * @i: s64 value to add + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v + @i) with acquire ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_add_acquire() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_add_acquire(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_fetch_add_acquire) + return arch_atomic64_fetch_add_acquire(i, v); +#elif defined(arch_atomic64_fetch_add_relaxed) + s64 ret = arch_atomic64_fetch_add_relaxed(i, v); + __atomic_acquire_fence(); + return ret; +#elif defined(arch_atomic64_fetch_add) + return arch_atomic64_fetch_add(i, v); +#else +#error "Unable to define raw_atomic64_fetch_add_acquire" +#endif +} + +/** + * raw_atomic64_fetch_add_release() - atomic add with release ordering + * @i: s64 value to add + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v + @i) with release ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_add_release() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_add_release(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_fetch_add_release) + return arch_atomic64_fetch_add_release(i, v); +#elif defined(arch_atomic64_fetch_add_relaxed) + __atomic_release_fence(); + return arch_atomic64_fetch_add_relaxed(i, v); +#elif defined(arch_atomic64_fetch_add) + return arch_atomic64_fetch_add(i, v); +#else +#error "Unable to define raw_atomic64_fetch_add_release" +#endif +} + +/** + * raw_atomic64_fetch_add_relaxed() - atomic add with relaxed ordering + * @i: s64 value to add + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v + @i) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_add_relaxed() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_add_relaxed(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_fetch_add_relaxed) + return arch_atomic64_fetch_add_relaxed(i, v); +#elif defined(arch_atomic64_fetch_add) + return arch_atomic64_fetch_add(i, v); +#else +#error "Unable to define raw_atomic64_fetch_add_relaxed" +#endif +} + +/** + * raw_atomic64_sub() - atomic subtract with relaxed ordering + * @i: s64 value to subtract + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v - @i) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic64_sub() elsewhere. + * + * Return: Nothing. + */ +static __always_inline void +raw_atomic64_sub(s64 i, atomic64_t *v) +{ + arch_atomic64_sub(i, v); +} + +/** + * raw_atomic64_sub_return() - atomic subtract with full ordering + * @i: s64 value to subtract + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v - @i) with full ordering. + * + * Safe to use in noinstr code; prefer atomic64_sub_return() elsewhere. + * + * Return: The updated value of @v. + */ +static __always_inline s64 +raw_atomic64_sub_return(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_sub_return) + return arch_atomic64_sub_return(i, v); +#elif defined(arch_atomic64_sub_return_relaxed) + s64 ret; + __atomic_pre_full_fence(); + ret = arch_atomic64_sub_return_relaxed(i, v); + __atomic_post_full_fence(); + return ret; +#else +#error "Unable to define raw_atomic64_sub_return" +#endif +} + +/** + * raw_atomic64_sub_return_acquire() - atomic subtract with acquire ordering + * @i: s64 value to subtract + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v - @i) with acquire ordering. + * + * Safe to use in noinstr code; prefer atomic64_sub_return_acquire() elsewhere. + * + * Return: The updated value of @v. + */ +static __always_inline s64 +raw_atomic64_sub_return_acquire(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_sub_return_acquire) + return arch_atomic64_sub_return_acquire(i, v); +#elif defined(arch_atomic64_sub_return_relaxed) + s64 ret = arch_atomic64_sub_return_relaxed(i, v); + __atomic_acquire_fence(); + return ret; +#elif defined(arch_atomic64_sub_return) + return arch_atomic64_sub_return(i, v); +#else +#error "Unable to define raw_atomic64_sub_return_acquire" +#endif +} + +/** + * raw_atomic64_sub_return_release() - atomic subtract with release ordering + * @i: s64 value to subtract + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v - @i) with release ordering. + * + * Safe to use in noinstr code; prefer atomic64_sub_return_release() elsewhere. + * + * Return: The updated value of @v. + */ +static __always_inline s64 +raw_atomic64_sub_return_release(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_sub_return_release) + return arch_atomic64_sub_return_release(i, v); +#elif defined(arch_atomic64_sub_return_relaxed) + __atomic_release_fence(); + return arch_atomic64_sub_return_relaxed(i, v); +#elif defined(arch_atomic64_sub_return) + return arch_atomic64_sub_return(i, v); +#else +#error "Unable to define raw_atomic64_sub_return_release" +#endif +} + +/** + * raw_atomic64_sub_return_relaxed() - atomic subtract with relaxed ordering + * @i: s64 value to subtract + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v - @i) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic64_sub_return_relaxed() elsewhere. + * + * Return: The updated value of @v. + */ +static __always_inline s64 +raw_atomic64_sub_return_relaxed(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_sub_return_relaxed) + return arch_atomic64_sub_return_relaxed(i, v); +#elif defined(arch_atomic64_sub_return) + return arch_atomic64_sub_return(i, v); +#else +#error "Unable to define raw_atomic64_sub_return_relaxed" +#endif +} + +/** + * raw_atomic64_fetch_sub() - atomic subtract with full ordering + * @i: s64 value to subtract + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v - @i) with full ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_sub() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_sub(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_fetch_sub) + return arch_atomic64_fetch_sub(i, v); +#elif defined(arch_atomic64_fetch_sub_relaxed) + s64 ret; + __atomic_pre_full_fence(); + ret = arch_atomic64_fetch_sub_relaxed(i, v); + __atomic_post_full_fence(); + return ret; +#else +#error "Unable to define raw_atomic64_fetch_sub" +#endif +} + +/** + * raw_atomic64_fetch_sub_acquire() - atomic subtract with acquire ordering + * @i: s64 value to subtract + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v - @i) with acquire ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_sub_acquire() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_sub_acquire(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_fetch_sub_acquire) + return arch_atomic64_fetch_sub_acquire(i, v); +#elif defined(arch_atomic64_fetch_sub_relaxed) + s64 ret = arch_atomic64_fetch_sub_relaxed(i, v); + __atomic_acquire_fence(); + return ret; +#elif defined(arch_atomic64_fetch_sub) + return arch_atomic64_fetch_sub(i, v); +#else +#error "Unable to define raw_atomic64_fetch_sub_acquire" +#endif +} + +/** + * raw_atomic64_fetch_sub_release() - atomic subtract with release ordering + * @i: s64 value to subtract + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v - @i) with release ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_sub_release() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_sub_release(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_fetch_sub_release) + return arch_atomic64_fetch_sub_release(i, v); +#elif defined(arch_atomic64_fetch_sub_relaxed) + __atomic_release_fence(); + return arch_atomic64_fetch_sub_relaxed(i, v); +#elif defined(arch_atomic64_fetch_sub) + return arch_atomic64_fetch_sub(i, v); +#else +#error "Unable to define raw_atomic64_fetch_sub_release" +#endif +} + +/** + * raw_atomic64_fetch_sub_relaxed() - atomic subtract with relaxed ordering + * @i: s64 value to subtract + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v - @i) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_sub_relaxed() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_sub_relaxed(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_fetch_sub_relaxed) + return arch_atomic64_fetch_sub_relaxed(i, v); +#elif defined(arch_atomic64_fetch_sub) + return arch_atomic64_fetch_sub(i, v); +#else +#error "Unable to define raw_atomic64_fetch_sub_relaxed" +#endif +} + +/** + * raw_atomic64_inc() - atomic increment with relaxed ordering + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v + 1) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic64_inc() elsewhere. + * + * Return: Nothing. + */ +static __always_inline void +raw_atomic64_inc(atomic64_t *v) +{ +#if defined(arch_atomic64_inc) + arch_atomic64_inc(v); +#else + raw_atomic64_add(1, v); +#endif +} + +/** + * raw_atomic64_inc_return() - atomic increment with full ordering + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v + 1) with full ordering. + * + * Safe to use in noinstr code; prefer atomic64_inc_return() elsewhere. + * + * Return: The updated value of @v. + */ +static __always_inline s64 +raw_atomic64_inc_return(atomic64_t *v) +{ +#if defined(arch_atomic64_inc_return) + return arch_atomic64_inc_return(v); +#elif defined(arch_atomic64_inc_return_relaxed) + s64 ret; + __atomic_pre_full_fence(); + ret = arch_atomic64_inc_return_relaxed(v); + __atomic_post_full_fence(); + return ret; +#else + return raw_atomic64_add_return(1, v); +#endif +} + +/** + * raw_atomic64_inc_return_acquire() - atomic increment with acquire ordering + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v + 1) with acquire ordering. + * + * Safe to use in noinstr code; prefer atomic64_inc_return_acquire() elsewhere. + * + * Return: The updated value of @v. + */ +static __always_inline s64 +raw_atomic64_inc_return_acquire(atomic64_t *v) +{ +#if defined(arch_atomic64_inc_return_acquire) + return arch_atomic64_inc_return_acquire(v); +#elif defined(arch_atomic64_inc_return_relaxed) + s64 ret = arch_atomic64_inc_return_relaxed(v); + __atomic_acquire_fence(); + return ret; +#elif defined(arch_atomic64_inc_return) + return arch_atomic64_inc_return(v); +#else + return raw_atomic64_add_return_acquire(1, v); +#endif +} + +/** + * raw_atomic64_inc_return_release() - atomic increment with release ordering + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v + 1) with release ordering. + * + * Safe to use in noinstr code; prefer atomic64_inc_return_release() elsewhere. + * + * Return: The updated value of @v. + */ +static __always_inline s64 +raw_atomic64_inc_return_release(atomic64_t *v) +{ +#if defined(arch_atomic64_inc_return_release) + return arch_atomic64_inc_return_release(v); +#elif defined(arch_atomic64_inc_return_relaxed) + __atomic_release_fence(); + return arch_atomic64_inc_return_relaxed(v); +#elif defined(arch_atomic64_inc_return) + return arch_atomic64_inc_return(v); +#else + return raw_atomic64_add_return_release(1, v); +#endif +} + +/** + * raw_atomic64_inc_return_relaxed() - atomic increment with relaxed ordering + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v + 1) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic64_inc_return_relaxed() elsewhere. + * + * Return: The updated value of @v. + */ +static __always_inline s64 +raw_atomic64_inc_return_relaxed(atomic64_t *v) +{ +#if defined(arch_atomic64_inc_return_relaxed) + return arch_atomic64_inc_return_relaxed(v); +#elif defined(arch_atomic64_inc_return) + return arch_atomic64_inc_return(v); +#else + return raw_atomic64_add_return_relaxed(1, v); +#endif +} + +/** + * raw_atomic64_fetch_inc() - atomic increment with full ordering + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v + 1) with full ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_inc() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_inc(atomic64_t *v) +{ +#if defined(arch_atomic64_fetch_inc) + return arch_atomic64_fetch_inc(v); +#elif defined(arch_atomic64_fetch_inc_relaxed) + s64 ret; + __atomic_pre_full_fence(); + ret = arch_atomic64_fetch_inc_relaxed(v); + __atomic_post_full_fence(); + return ret; +#else + return raw_atomic64_fetch_add(1, v); +#endif +} + +/** + * raw_atomic64_fetch_inc_acquire() - atomic increment with acquire ordering + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v + 1) with acquire ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_inc_acquire() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_inc_acquire(atomic64_t *v) +{ +#if defined(arch_atomic64_fetch_inc_acquire) + return arch_atomic64_fetch_inc_acquire(v); +#elif defined(arch_atomic64_fetch_inc_relaxed) + s64 ret = arch_atomic64_fetch_inc_relaxed(v); + __atomic_acquire_fence(); + return ret; +#elif defined(arch_atomic64_fetch_inc) + return arch_atomic64_fetch_inc(v); +#else + return raw_atomic64_fetch_add_acquire(1, v); +#endif +} + +/** + * raw_atomic64_fetch_inc_release() - atomic increment with release ordering + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v + 1) with release ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_inc_release() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_inc_release(atomic64_t *v) +{ +#if defined(arch_atomic64_fetch_inc_release) + return arch_atomic64_fetch_inc_release(v); +#elif defined(arch_atomic64_fetch_inc_relaxed) + __atomic_release_fence(); + return arch_atomic64_fetch_inc_relaxed(v); +#elif defined(arch_atomic64_fetch_inc) + return arch_atomic64_fetch_inc(v); +#else + return raw_atomic64_fetch_add_release(1, v); +#endif +} + +/** + * raw_atomic64_fetch_inc_relaxed() - atomic increment with relaxed ordering + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v + 1) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_inc_relaxed() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_inc_relaxed(atomic64_t *v) +{ +#if defined(arch_atomic64_fetch_inc_relaxed) + return arch_atomic64_fetch_inc_relaxed(v); +#elif defined(arch_atomic64_fetch_inc) + return arch_atomic64_fetch_inc(v); +#else + return raw_atomic64_fetch_add_relaxed(1, v); +#endif +} + +/** + * raw_atomic64_dec() - atomic decrement with relaxed ordering + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v - 1) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic64_dec() elsewhere. + * + * Return: Nothing. + */ +static __always_inline void +raw_atomic64_dec(atomic64_t *v) +{ +#if defined(arch_atomic64_dec) + arch_atomic64_dec(v); +#else + raw_atomic64_sub(1, v); +#endif +} + +/** + * raw_atomic64_dec_return() - atomic decrement with full ordering + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v - 1) with full ordering. + * + * Safe to use in noinstr code; prefer atomic64_dec_return() elsewhere. + * + * Return: The updated value of @v. + */ +static __always_inline s64 +raw_atomic64_dec_return(atomic64_t *v) +{ +#if defined(arch_atomic64_dec_return) + return arch_atomic64_dec_return(v); +#elif defined(arch_atomic64_dec_return_relaxed) + s64 ret; + __atomic_pre_full_fence(); + ret = arch_atomic64_dec_return_relaxed(v); + __atomic_post_full_fence(); + return ret; +#else + return raw_atomic64_sub_return(1, v); +#endif +} + +/** + * raw_atomic64_dec_return_acquire() - atomic decrement with acquire ordering + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v - 1) with acquire ordering. + * + * Safe to use in noinstr code; prefer atomic64_dec_return_acquire() elsewhere. + * + * Return: The updated value of @v. + */ +static __always_inline s64 +raw_atomic64_dec_return_acquire(atomic64_t *v) +{ +#if defined(arch_atomic64_dec_return_acquire) + return arch_atomic64_dec_return_acquire(v); +#elif defined(arch_atomic64_dec_return_relaxed) + s64 ret = arch_atomic64_dec_return_relaxed(v); + __atomic_acquire_fence(); + return ret; +#elif defined(arch_atomic64_dec_return) + return arch_atomic64_dec_return(v); +#else + return raw_atomic64_sub_return_acquire(1, v); +#endif +} + +/** + * raw_atomic64_dec_return_release() - atomic decrement with release ordering + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v - 1) with release ordering. + * + * Safe to use in noinstr code; prefer atomic64_dec_return_release() elsewhere. + * + * Return: The updated value of @v. + */ +static __always_inline s64 +raw_atomic64_dec_return_release(atomic64_t *v) +{ +#if defined(arch_atomic64_dec_return_release) + return arch_atomic64_dec_return_release(v); +#elif defined(arch_atomic64_dec_return_relaxed) + __atomic_release_fence(); + return arch_atomic64_dec_return_relaxed(v); +#elif defined(arch_atomic64_dec_return) + return arch_atomic64_dec_return(v); +#else + return raw_atomic64_sub_return_release(1, v); +#endif +} + +/** + * raw_atomic64_dec_return_relaxed() - atomic decrement with relaxed ordering + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v - 1) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic64_dec_return_relaxed() elsewhere. + * + * Return: The updated value of @v. + */ +static __always_inline s64 +raw_atomic64_dec_return_relaxed(atomic64_t *v) +{ +#if defined(arch_atomic64_dec_return_relaxed) + return arch_atomic64_dec_return_relaxed(v); +#elif defined(arch_atomic64_dec_return) + return arch_atomic64_dec_return(v); +#else + return raw_atomic64_sub_return_relaxed(1, v); +#endif +} + +/** + * raw_atomic64_fetch_dec() - atomic decrement with full ordering + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v - 1) with full ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_dec() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_dec(atomic64_t *v) +{ +#if defined(arch_atomic64_fetch_dec) + return arch_atomic64_fetch_dec(v); +#elif defined(arch_atomic64_fetch_dec_relaxed) + s64 ret; + __atomic_pre_full_fence(); + ret = arch_atomic64_fetch_dec_relaxed(v); + __atomic_post_full_fence(); + return ret; +#else + return raw_atomic64_fetch_sub(1, v); +#endif +} + +/** + * raw_atomic64_fetch_dec_acquire() - atomic decrement with acquire ordering + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v - 1) with acquire ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_dec_acquire() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_dec_acquire(atomic64_t *v) +{ +#if defined(arch_atomic64_fetch_dec_acquire) + return arch_atomic64_fetch_dec_acquire(v); +#elif defined(arch_atomic64_fetch_dec_relaxed) + s64 ret = arch_atomic64_fetch_dec_relaxed(v); + __atomic_acquire_fence(); + return ret; +#elif defined(arch_atomic64_fetch_dec) + return arch_atomic64_fetch_dec(v); +#else + return raw_atomic64_fetch_sub_acquire(1, v); +#endif +} + +/** + * raw_atomic64_fetch_dec_release() - atomic decrement with release ordering + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v - 1) with release ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_dec_release() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_dec_release(atomic64_t *v) +{ +#if defined(arch_atomic64_fetch_dec_release) + return arch_atomic64_fetch_dec_release(v); +#elif defined(arch_atomic64_fetch_dec_relaxed) + __atomic_release_fence(); + return arch_atomic64_fetch_dec_relaxed(v); +#elif defined(arch_atomic64_fetch_dec) + return arch_atomic64_fetch_dec(v); +#else + return raw_atomic64_fetch_sub_release(1, v); +#endif +} + +/** + * raw_atomic64_fetch_dec_relaxed() - atomic decrement with relaxed ordering + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v - 1) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_dec_relaxed() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_dec_relaxed(atomic64_t *v) +{ +#if defined(arch_atomic64_fetch_dec_relaxed) + return arch_atomic64_fetch_dec_relaxed(v); +#elif defined(arch_atomic64_fetch_dec) + return arch_atomic64_fetch_dec(v); +#else + return raw_atomic64_fetch_sub_relaxed(1, v); +#endif +} + +/** + * raw_atomic64_and() - atomic bitwise AND with relaxed ordering + * @i: s64 value + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v & @i) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic64_and() elsewhere. + * + * Return: Nothing. + */ +static __always_inline void +raw_atomic64_and(s64 i, atomic64_t *v) +{ + arch_atomic64_and(i, v); +} + +/** + * raw_atomic64_fetch_and() - atomic bitwise AND with full ordering + * @i: s64 value + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v & @i) with full ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_and() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_and(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_fetch_and) + return arch_atomic64_fetch_and(i, v); +#elif defined(arch_atomic64_fetch_and_relaxed) + s64 ret; + __atomic_pre_full_fence(); + ret = arch_atomic64_fetch_and_relaxed(i, v); + __atomic_post_full_fence(); + return ret; +#else +#error "Unable to define raw_atomic64_fetch_and" +#endif +} + +/** + * raw_atomic64_fetch_and_acquire() - atomic bitwise AND with acquire ordering + * @i: s64 value + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v & @i) with acquire ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_and_acquire() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_and_acquire(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_fetch_and_acquire) + return arch_atomic64_fetch_and_acquire(i, v); +#elif defined(arch_atomic64_fetch_and_relaxed) + s64 ret = arch_atomic64_fetch_and_relaxed(i, v); + __atomic_acquire_fence(); + return ret; +#elif defined(arch_atomic64_fetch_and) + return arch_atomic64_fetch_and(i, v); +#else +#error "Unable to define raw_atomic64_fetch_and_acquire" +#endif +} + +/** + * raw_atomic64_fetch_and_release() - atomic bitwise AND with release ordering + * @i: s64 value + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v & @i) with release ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_and_release() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_and_release(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_fetch_and_release) + return arch_atomic64_fetch_and_release(i, v); +#elif defined(arch_atomic64_fetch_and_relaxed) + __atomic_release_fence(); + return arch_atomic64_fetch_and_relaxed(i, v); +#elif defined(arch_atomic64_fetch_and) + return arch_atomic64_fetch_and(i, v); +#else +#error "Unable to define raw_atomic64_fetch_and_release" +#endif +} + +/** + * raw_atomic64_fetch_and_relaxed() - atomic bitwise AND with relaxed ordering + * @i: s64 value + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v & @i) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_and_relaxed() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_and_relaxed(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_fetch_and_relaxed) + return arch_atomic64_fetch_and_relaxed(i, v); +#elif defined(arch_atomic64_fetch_and) + return arch_atomic64_fetch_and(i, v); +#else +#error "Unable to define raw_atomic64_fetch_and_relaxed" +#endif +} + +/** + * raw_atomic64_andnot() - atomic bitwise AND NOT with relaxed ordering + * @i: s64 value + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v & ~@i) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic64_andnot() elsewhere. + * + * Return: Nothing. + */ +static __always_inline void +raw_atomic64_andnot(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_andnot) + arch_atomic64_andnot(i, v); +#else + raw_atomic64_and(~i, v); +#endif +} + +/** + * raw_atomic64_fetch_andnot() - atomic bitwise AND NOT with full ordering + * @i: s64 value + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v & ~@i) with full ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_andnot() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_andnot(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_fetch_andnot) + return arch_atomic64_fetch_andnot(i, v); +#elif defined(arch_atomic64_fetch_andnot_relaxed) + s64 ret; + __atomic_pre_full_fence(); + ret = arch_atomic64_fetch_andnot_relaxed(i, v); + __atomic_post_full_fence(); + return ret; +#else + return raw_atomic64_fetch_and(~i, v); +#endif +} + +/** + * raw_atomic64_fetch_andnot_acquire() - atomic bitwise AND NOT with acquire ordering + * @i: s64 value + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v & ~@i) with acquire ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_andnot_acquire() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_andnot_acquire(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_fetch_andnot_acquire) + return arch_atomic64_fetch_andnot_acquire(i, v); +#elif defined(arch_atomic64_fetch_andnot_relaxed) + s64 ret = arch_atomic64_fetch_andnot_relaxed(i, v); + __atomic_acquire_fence(); + return ret; +#elif defined(arch_atomic64_fetch_andnot) + return arch_atomic64_fetch_andnot(i, v); +#else + return raw_atomic64_fetch_and_acquire(~i, v); +#endif +} + +/** + * raw_atomic64_fetch_andnot_release() - atomic bitwise AND NOT with release ordering + * @i: s64 value + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v & ~@i) with release ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_andnot_release() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_andnot_release(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_fetch_andnot_release) + return arch_atomic64_fetch_andnot_release(i, v); +#elif defined(arch_atomic64_fetch_andnot_relaxed) + __atomic_release_fence(); + return arch_atomic64_fetch_andnot_relaxed(i, v); +#elif defined(arch_atomic64_fetch_andnot) + return arch_atomic64_fetch_andnot(i, v); +#else + return raw_atomic64_fetch_and_release(~i, v); +#endif +} + +/** + * raw_atomic64_fetch_andnot_relaxed() - atomic bitwise AND NOT with relaxed ordering + * @i: s64 value + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v & ~@i) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_andnot_relaxed() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_andnot_relaxed(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_fetch_andnot_relaxed) + return arch_atomic64_fetch_andnot_relaxed(i, v); +#elif defined(arch_atomic64_fetch_andnot) + return arch_atomic64_fetch_andnot(i, v); +#else + return raw_atomic64_fetch_and_relaxed(~i, v); +#endif +} + +/** + * raw_atomic64_or() - atomic bitwise OR with relaxed ordering + * @i: s64 value + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v | @i) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic64_or() elsewhere. + * + * Return: Nothing. + */ +static __always_inline void +raw_atomic64_or(s64 i, atomic64_t *v) +{ + arch_atomic64_or(i, v); +} + +/** + * raw_atomic64_fetch_or() - atomic bitwise OR with full ordering + * @i: s64 value + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v | @i) with full ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_or() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_or(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_fetch_or) + return arch_atomic64_fetch_or(i, v); +#elif defined(arch_atomic64_fetch_or_relaxed) + s64 ret; + __atomic_pre_full_fence(); + ret = arch_atomic64_fetch_or_relaxed(i, v); + __atomic_post_full_fence(); + return ret; +#else +#error "Unable to define raw_atomic64_fetch_or" +#endif +} + +/** + * raw_atomic64_fetch_or_acquire() - atomic bitwise OR with acquire ordering + * @i: s64 value + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v | @i) with acquire ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_or_acquire() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_or_acquire(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_fetch_or_acquire) + return arch_atomic64_fetch_or_acquire(i, v); +#elif defined(arch_atomic64_fetch_or_relaxed) + s64 ret = arch_atomic64_fetch_or_relaxed(i, v); + __atomic_acquire_fence(); + return ret; +#elif defined(arch_atomic64_fetch_or) + return arch_atomic64_fetch_or(i, v); +#else +#error "Unable to define raw_atomic64_fetch_or_acquire" +#endif +} + +/** + * raw_atomic64_fetch_or_release() - atomic bitwise OR with release ordering + * @i: s64 value + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v | @i) with release ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_or_release() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_or_release(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_fetch_or_release) + return arch_atomic64_fetch_or_release(i, v); +#elif defined(arch_atomic64_fetch_or_relaxed) + __atomic_release_fence(); + return arch_atomic64_fetch_or_relaxed(i, v); +#elif defined(arch_atomic64_fetch_or) + return arch_atomic64_fetch_or(i, v); +#else +#error "Unable to define raw_atomic64_fetch_or_release" +#endif +} + +/** + * raw_atomic64_fetch_or_relaxed() - atomic bitwise OR with relaxed ordering + * @i: s64 value + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v | @i) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_or_relaxed() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_or_relaxed(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_fetch_or_relaxed) + return arch_atomic64_fetch_or_relaxed(i, v); +#elif defined(arch_atomic64_fetch_or) + return arch_atomic64_fetch_or(i, v); +#else +#error "Unable to define raw_atomic64_fetch_or_relaxed" +#endif +} + +/** + * raw_atomic64_xor() - atomic bitwise XOR with relaxed ordering + * @i: s64 value + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v ^ @i) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic64_xor() elsewhere. + * + * Return: Nothing. + */ +static __always_inline void +raw_atomic64_xor(s64 i, atomic64_t *v) +{ + arch_atomic64_xor(i, v); +} + +/** + * raw_atomic64_fetch_xor() - atomic bitwise XOR with full ordering + * @i: s64 value + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v ^ @i) with full ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_xor() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_xor(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_fetch_xor) + return arch_atomic64_fetch_xor(i, v); +#elif defined(arch_atomic64_fetch_xor_relaxed) + s64 ret; + __atomic_pre_full_fence(); + ret = arch_atomic64_fetch_xor_relaxed(i, v); + __atomic_post_full_fence(); + return ret; +#else +#error "Unable to define raw_atomic64_fetch_xor" +#endif +} + +/** + * raw_atomic64_fetch_xor_acquire() - atomic bitwise XOR with acquire ordering + * @i: s64 value + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v ^ @i) with acquire ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_xor_acquire() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_xor_acquire(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_fetch_xor_acquire) + return arch_atomic64_fetch_xor_acquire(i, v); +#elif defined(arch_atomic64_fetch_xor_relaxed) + s64 ret = arch_atomic64_fetch_xor_relaxed(i, v); + __atomic_acquire_fence(); + return ret; +#elif defined(arch_atomic64_fetch_xor) + return arch_atomic64_fetch_xor(i, v); +#else +#error "Unable to define raw_atomic64_fetch_xor_acquire" +#endif +} + +/** + * raw_atomic64_fetch_xor_release() - atomic bitwise XOR with release ordering + * @i: s64 value + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v ^ @i) with release ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_xor_release() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_xor_release(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_fetch_xor_release) + return arch_atomic64_fetch_xor_release(i, v); +#elif defined(arch_atomic64_fetch_xor_relaxed) + __atomic_release_fence(); + return arch_atomic64_fetch_xor_relaxed(i, v); +#elif defined(arch_atomic64_fetch_xor) + return arch_atomic64_fetch_xor(i, v); +#else +#error "Unable to define raw_atomic64_fetch_xor_release" +#endif +} + +/** + * raw_atomic64_fetch_xor_relaxed() - atomic bitwise XOR with relaxed ordering + * @i: s64 value + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v ^ @i) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_xor_relaxed() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_xor_relaxed(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_fetch_xor_relaxed) + return arch_atomic64_fetch_xor_relaxed(i, v); +#elif defined(arch_atomic64_fetch_xor) + return arch_atomic64_fetch_xor(i, v); +#else +#error "Unable to define raw_atomic64_fetch_xor_relaxed" +#endif +} + +/** + * raw_atomic64_xchg() - atomic exchange with full ordering + * @v: pointer to atomic64_t + * @new: s64 value to assign + * + * Atomically updates @v to @new with full ordering. + * + * Safe to use in noinstr code; prefer atomic64_xchg() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_xchg(atomic64_t *v, s64 new) +{ +#if defined(arch_atomic64_xchg) + return arch_atomic64_xchg(v, new); +#elif defined(arch_atomic64_xchg_relaxed) + s64 ret; + __atomic_pre_full_fence(); + ret = arch_atomic64_xchg_relaxed(v, new); + __atomic_post_full_fence(); + return ret; +#else + return raw_xchg(&v->counter, new); +#endif +} + +/** + * raw_atomic64_xchg_acquire() - atomic exchange with acquire ordering + * @v: pointer to atomic64_t + * @new: s64 value to assign + * + * Atomically updates @v to @new with acquire ordering. + * + * Safe to use in noinstr code; prefer atomic64_xchg_acquire() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_xchg_acquire(atomic64_t *v, s64 new) +{ +#if defined(arch_atomic64_xchg_acquire) + return arch_atomic64_xchg_acquire(v, new); +#elif defined(arch_atomic64_xchg_relaxed) + s64 ret = arch_atomic64_xchg_relaxed(v, new); + __atomic_acquire_fence(); + return ret; +#elif defined(arch_atomic64_xchg) + return arch_atomic64_xchg(v, new); +#else + return raw_xchg_acquire(&v->counter, new); +#endif +} + +/** + * raw_atomic64_xchg_release() - atomic exchange with release ordering + * @v: pointer to atomic64_t + * @new: s64 value to assign + * + * Atomically updates @v to @new with release ordering. + * + * Safe to use in noinstr code; prefer atomic64_xchg_release() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_xchg_release(atomic64_t *v, s64 new) +{ +#if defined(arch_atomic64_xchg_release) + return arch_atomic64_xchg_release(v, new); +#elif defined(arch_atomic64_xchg_relaxed) + __atomic_release_fence(); + return arch_atomic64_xchg_relaxed(v, new); +#elif defined(arch_atomic64_xchg) + return arch_atomic64_xchg(v, new); +#else + return raw_xchg_release(&v->counter, new); +#endif +} + +/** + * raw_atomic64_xchg_relaxed() - atomic exchange with relaxed ordering + * @v: pointer to atomic64_t + * @new: s64 value to assign + * + * Atomically updates @v to @new with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic64_xchg_relaxed() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_xchg_relaxed(atomic64_t *v, s64 new) +{ +#if defined(arch_atomic64_xchg_relaxed) + return arch_atomic64_xchg_relaxed(v, new); +#elif defined(arch_atomic64_xchg) + return arch_atomic64_xchg(v, new); +#else + return raw_xchg_relaxed(&v->counter, new); +#endif +} + +/** + * raw_atomic64_cmpxchg() - atomic compare and exchange with full ordering + * @v: pointer to atomic64_t + * @old: s64 value to compare with + * @new: s64 value to assign + * + * If (@v == @old), atomically updates @v to @new with full ordering. + * + * Safe to use in noinstr code; prefer atomic64_cmpxchg() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_cmpxchg(atomic64_t *v, s64 old, s64 new) +{ +#if defined(arch_atomic64_cmpxchg) + return arch_atomic64_cmpxchg(v, old, new); +#elif defined(arch_atomic64_cmpxchg_relaxed) + s64 ret; + __atomic_pre_full_fence(); + ret = arch_atomic64_cmpxchg_relaxed(v, old, new); + __atomic_post_full_fence(); + return ret; +#else + return raw_cmpxchg(&v->counter, old, new); +#endif +} + +/** + * raw_atomic64_cmpxchg_acquire() - atomic compare and exchange with acquire ordering + * @v: pointer to atomic64_t + * @old: s64 value to compare with + * @new: s64 value to assign + * + * If (@v == @old), atomically updates @v to @new with acquire ordering. + * + * Safe to use in noinstr code; prefer atomic64_cmpxchg_acquire() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_cmpxchg_acquire(atomic64_t *v, s64 old, s64 new) +{ +#if defined(arch_atomic64_cmpxchg_acquire) + return arch_atomic64_cmpxchg_acquire(v, old, new); +#elif defined(arch_atomic64_cmpxchg_relaxed) + s64 ret = arch_atomic64_cmpxchg_relaxed(v, old, new); + __atomic_acquire_fence(); + return ret; +#elif defined(arch_atomic64_cmpxchg) + return arch_atomic64_cmpxchg(v, old, new); +#else + return raw_cmpxchg_acquire(&v->counter, old, new); +#endif +} + +/** + * raw_atomic64_cmpxchg_release() - atomic compare and exchange with release ordering + * @v: pointer to atomic64_t + * @old: s64 value to compare with + * @new: s64 value to assign + * + * If (@v == @old), atomically updates @v to @new with release ordering. + * + * Safe to use in noinstr code; prefer atomic64_cmpxchg_release() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_cmpxchg_release(atomic64_t *v, s64 old, s64 new) +{ +#if defined(arch_atomic64_cmpxchg_release) + return arch_atomic64_cmpxchg_release(v, old, new); +#elif defined(arch_atomic64_cmpxchg_relaxed) + __atomic_release_fence(); + return arch_atomic64_cmpxchg_relaxed(v, old, new); +#elif defined(arch_atomic64_cmpxchg) + return arch_atomic64_cmpxchg(v, old, new); +#else + return raw_cmpxchg_release(&v->counter, old, new); +#endif +} + +/** + * raw_atomic64_cmpxchg_relaxed() - atomic compare and exchange with relaxed ordering + * @v: pointer to atomic64_t + * @old: s64 value to compare with + * @new: s64 value to assign + * + * If (@v == @old), atomically updates @v to @new with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic64_cmpxchg_relaxed() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_cmpxchg_relaxed(atomic64_t *v, s64 old, s64 new) +{ +#if defined(arch_atomic64_cmpxchg_relaxed) + return arch_atomic64_cmpxchg_relaxed(v, old, new); +#elif defined(arch_atomic64_cmpxchg) + return arch_atomic64_cmpxchg(v, old, new); +#else + return raw_cmpxchg_relaxed(&v->counter, old, new); +#endif +} + +/** + * raw_atomic64_try_cmpxchg() - atomic compare and exchange with full ordering + * @v: pointer to atomic64_t + * @old: pointer to s64 value to compare with + * @new: s64 value to assign + * + * If (@v == @old), atomically updates @v to @new with full ordering. + * Otherwise, updates @old to the current value of @v. + * + * Safe to use in noinstr code; prefer atomic64_try_cmpxchg() elsewhere. + * + * Return: @true if the exchange occured, @false otherwise. + */ +static __always_inline bool +raw_atomic64_try_cmpxchg(atomic64_t *v, s64 *old, s64 new) +{ +#if defined(arch_atomic64_try_cmpxchg) + return arch_atomic64_try_cmpxchg(v, old, new); +#elif defined(arch_atomic64_try_cmpxchg_relaxed) + bool ret; + __atomic_pre_full_fence(); + ret = arch_atomic64_try_cmpxchg_relaxed(v, old, new); + __atomic_post_full_fence(); + return ret; +#else + s64 r, o = *old; + r = raw_atomic64_cmpxchg(v, o, new); + if (unlikely(r != o)) + *old = r; + return likely(r == o); +#endif +} + +/** + * raw_atomic64_try_cmpxchg_acquire() - atomic compare and exchange with acquire ordering + * @v: pointer to atomic64_t + * @old: pointer to s64 value to compare with + * @new: s64 value to assign + * + * If (@v == @old), atomically updates @v to @new with acquire ordering. + * Otherwise, updates @old to the current value of @v. + * + * Safe to use in noinstr code; prefer atomic64_try_cmpxchg_acquire() elsewhere. + * + * Return: @true if the exchange occured, @false otherwise. + */ +static __always_inline bool +raw_atomic64_try_cmpxchg_acquire(atomic64_t *v, s64 *old, s64 new) +{ +#if defined(arch_atomic64_try_cmpxchg_acquire) + return arch_atomic64_try_cmpxchg_acquire(v, old, new); +#elif defined(arch_atomic64_try_cmpxchg_relaxed) + bool ret = arch_atomic64_try_cmpxchg_relaxed(v, old, new); + __atomic_acquire_fence(); + return ret; +#elif defined(arch_atomic64_try_cmpxchg) + return arch_atomic64_try_cmpxchg(v, old, new); +#else + s64 r, o = *old; + r = raw_atomic64_cmpxchg_acquire(v, o, new); + if (unlikely(r != o)) + *old = r; + return likely(r == o); +#endif +} + +/** + * raw_atomic64_try_cmpxchg_release() - atomic compare and exchange with release ordering + * @v: pointer to atomic64_t + * @old: pointer to s64 value to compare with + * @new: s64 value to assign + * + * If (@v == @old), atomically updates @v to @new with release ordering. + * Otherwise, updates @old to the current value of @v. + * + * Safe to use in noinstr code; prefer atomic64_try_cmpxchg_release() elsewhere. + * + * Return: @true if the exchange occured, @false otherwise. + */ +static __always_inline bool +raw_atomic64_try_cmpxchg_release(atomic64_t *v, s64 *old, s64 new) +{ +#if defined(arch_atomic64_try_cmpxchg_release) + return arch_atomic64_try_cmpxchg_release(v, old, new); +#elif defined(arch_atomic64_try_cmpxchg_relaxed) + __atomic_release_fence(); + return arch_atomic64_try_cmpxchg_relaxed(v, old, new); +#elif defined(arch_atomic64_try_cmpxchg) + return arch_atomic64_try_cmpxchg(v, old, new); +#else + s64 r, o = *old; + r = raw_atomic64_cmpxchg_release(v, o, new); + if (unlikely(r != o)) + *old = r; + return likely(r == o); +#endif +} + +/** + * raw_atomic64_try_cmpxchg_relaxed() - atomic compare and exchange with relaxed ordering + * @v: pointer to atomic64_t + * @old: pointer to s64 value to compare with + * @new: s64 value to assign + * + * If (@v == @old), atomically updates @v to @new with relaxed ordering. + * Otherwise, updates @old to the current value of @v. + * + * Safe to use in noinstr code; prefer atomic64_try_cmpxchg_relaxed() elsewhere. + * + * Return: @true if the exchange occured, @false otherwise. + */ +static __always_inline bool +raw_atomic64_try_cmpxchg_relaxed(atomic64_t *v, s64 *old, s64 new) +{ +#if defined(arch_atomic64_try_cmpxchg_relaxed) + return arch_atomic64_try_cmpxchg_relaxed(v, old, new); +#elif defined(arch_atomic64_try_cmpxchg) + return arch_atomic64_try_cmpxchg(v, old, new); +#else + s64 r, o = *old; + r = raw_atomic64_cmpxchg_relaxed(v, o, new); + if (unlikely(r != o)) + *old = r; + return likely(r == o); +#endif +} + +/** + * raw_atomic64_sub_and_test() - atomic subtract and test if zero with full ordering + * @i: s64 value to add + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v - @i) with full ordering. + * + * Safe to use in noinstr code; prefer atomic64_sub_and_test() elsewhere. + * + * Return: @true if the resulting value of @v is zero, @false otherwise. + */ +static __always_inline bool +raw_atomic64_sub_and_test(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_sub_and_test) + return arch_atomic64_sub_and_test(i, v); +#else + return raw_atomic64_sub_return(i, v) == 0; +#endif +} + +/** + * raw_atomic64_dec_and_test() - atomic decrement and test if zero with full ordering + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v - 1) with full ordering. + * + * Safe to use in noinstr code; prefer atomic64_dec_and_test() elsewhere. + * + * Return: @true if the resulting value of @v is zero, @false otherwise. + */ +static __always_inline bool +raw_atomic64_dec_and_test(atomic64_t *v) +{ +#if defined(arch_atomic64_dec_and_test) + return arch_atomic64_dec_and_test(v); +#else + return raw_atomic64_dec_return(v) == 0; +#endif +} + +/** + * raw_atomic64_inc_and_test() - atomic increment and test if zero with full ordering + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v + 1) with full ordering. + * + * Safe to use in noinstr code; prefer atomic64_inc_and_test() elsewhere. + * + * Return: @true if the resulting value of @v is zero, @false otherwise. + */ +static __always_inline bool +raw_atomic64_inc_and_test(atomic64_t *v) +{ +#if defined(arch_atomic64_inc_and_test) + return arch_atomic64_inc_and_test(v); +#else + return raw_atomic64_inc_return(v) == 0; +#endif +} + +/** + * raw_atomic64_add_negative() - atomic add and test if negative with full ordering + * @i: s64 value to add + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v + @i) with full ordering. + * + * Safe to use in noinstr code; prefer atomic64_add_negative() elsewhere. + * + * Return: @true if the resulting value of @v is negative, @false otherwise. + */ +static __always_inline bool +raw_atomic64_add_negative(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_add_negative) + return arch_atomic64_add_negative(i, v); +#elif defined(arch_atomic64_add_negative_relaxed) + bool ret; + __atomic_pre_full_fence(); + ret = arch_atomic64_add_negative_relaxed(i, v); + __atomic_post_full_fence(); + return ret; +#else + return raw_atomic64_add_return(i, v) < 0; +#endif +} + +/** + * raw_atomic64_add_negative_acquire() - atomic add and test if negative with acquire ordering + * @i: s64 value to add + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v + @i) with acquire ordering. + * + * Safe to use in noinstr code; prefer atomic64_add_negative_acquire() elsewhere. + * + * Return: @true if the resulting value of @v is negative, @false otherwise. + */ +static __always_inline bool +raw_atomic64_add_negative_acquire(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_add_negative_acquire) + return arch_atomic64_add_negative_acquire(i, v); +#elif defined(arch_atomic64_add_negative_relaxed) + bool ret = arch_atomic64_add_negative_relaxed(i, v); + __atomic_acquire_fence(); + return ret; +#elif defined(arch_atomic64_add_negative) + return arch_atomic64_add_negative(i, v); +#else + return raw_atomic64_add_return_acquire(i, v) < 0; +#endif +} + +/** + * raw_atomic64_add_negative_release() - atomic add and test if negative with release ordering + * @i: s64 value to add + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v + @i) with release ordering. + * + * Safe to use in noinstr code; prefer atomic64_add_negative_release() elsewhere. + * + * Return: @true if the resulting value of @v is negative, @false otherwise. + */ +static __always_inline bool +raw_atomic64_add_negative_release(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_add_negative_release) + return arch_atomic64_add_negative_release(i, v); +#elif defined(arch_atomic64_add_negative_relaxed) + __atomic_release_fence(); + return arch_atomic64_add_negative_relaxed(i, v); +#elif defined(arch_atomic64_add_negative) + return arch_atomic64_add_negative(i, v); +#else + return raw_atomic64_add_return_release(i, v) < 0; +#endif +} + +/** + * raw_atomic64_add_negative_relaxed() - atomic add and test if negative with relaxed ordering + * @i: s64 value to add + * @v: pointer to atomic64_t + * + * Atomically updates @v to (@v + @i) with relaxed ordering. + * + * Safe to use in noinstr code; prefer atomic64_add_negative_relaxed() elsewhere. + * + * Return: @true if the resulting value of @v is negative, @false otherwise. + */ +static __always_inline bool +raw_atomic64_add_negative_relaxed(s64 i, atomic64_t *v) +{ +#if defined(arch_atomic64_add_negative_relaxed) + return arch_atomic64_add_negative_relaxed(i, v); +#elif defined(arch_atomic64_add_negative) + return arch_atomic64_add_negative(i, v); +#else + return raw_atomic64_add_return_relaxed(i, v) < 0; +#endif +} + +/** + * raw_atomic64_fetch_add_unless() - atomic add unless value with full ordering + * @v: pointer to atomic64_t + * @a: s64 value to add + * @u: s64 value to compare with + * + * If (@v != @u), atomically updates @v to (@v + @a) with full ordering. + * + * Safe to use in noinstr code; prefer atomic64_fetch_add_unless() elsewhere. + * + * Return: The original value of @v. + */ +static __always_inline s64 +raw_atomic64_fetch_add_unless(atomic64_t *v, s64 a, s64 u) +{ +#if defined(arch_atomic64_fetch_add_unless) + return arch_atomic64_fetch_add_unless(v, a, u); +#else + s64 c = raw_atomic64_read(v); + + do { + if (unlikely(c == u)) + break; + } while (!raw_atomic64_try_cmpxchg(v, &c, c + a)); + + return c; +#endif +} + +/** + * raw_atomic64_add_unless() - atomic add unless value with full ordering + * @v: pointer to atomic64_t + * @a: s64 value to add + * @u: s64 value to compare with + * + * If (@v != @u), atomically updates @v to (@v + @a) with full ordering. + * + * Safe to use in noinstr code; prefer atomic64_add_unless() elsewhere. + * + * Return: @true if @v was updated, @false otherwise. + */ +static __always_inline bool +raw_atomic64_add_unless(atomic64_t *v, s64 a, s64 u) +{ +#if defined(arch_atomic64_add_unless) + return arch_atomic64_add_unless(v, a, u); +#else + return raw_atomic64_fetch_add_unless(v, a, u) != u; +#endif +} + +/** + * raw_atomic64_inc_not_zero() - atomic increment unless zero with full ordering + * @v: pointer to atomic64_t + * + * If (@v != 0), atomically updates @v to (@v + 1) with full ordering. + * + * Safe to use in noinstr code; prefer atomic64_inc_not_zero() elsewhere. + * + * Return: @true if @v was updated, @false otherwise. + */ +static __always_inline bool +raw_atomic64_inc_not_zero(atomic64_t *v) +{ +#if defined(arch_atomic64_inc_not_zero) + return arch_atomic64_inc_not_zero(v); +#else + return raw_atomic64_add_unless(v, 1, 0); +#endif +} + +/** + * raw_atomic64_inc_unless_negative() - atomic increment unless negative with full ordering + * @v: pointer to atomic64_t + * + * If (@v >= 0), atomically updates @v to (@v + 1) with full ordering. + * + * Safe to use in noinstr code; prefer atomic64_inc_unless_negative() elsewhere. + * + * Return: @true if @v was updated, @false otherwise. + */ +static __always_inline bool +raw_atomic64_inc_unless_negative(atomic64_t *v) +{ +#if defined(arch_atomic64_inc_unless_negative) + return arch_atomic64_inc_unless_negative(v); +#else + s64 c = raw_atomic64_read(v); + + do { + if (unlikely(c < 0)) + return false; + } while (!raw_atomic64_try_cmpxchg(v, &c, c + 1)); + + return true; +#endif +} + +/** + * raw_atomic64_dec_unless_positive() - atomic decrement unless positive with full ordering + * @v: pointer to atomic64_t + * + * If (@v <= 0), atomically updates @v to (@v - 1) with full ordering. + * + * Safe to use in noinstr code; prefer atomic64_dec_unless_positive() elsewhere. + * + * Return: @true if @v was updated, @false otherwise. + */ +static __always_inline bool +raw_atomic64_dec_unless_positive(atomic64_t *v) +{ +#if defined(arch_atomic64_dec_unless_positive) + return arch_atomic64_dec_unless_positive(v); +#else + s64 c = raw_atomic64_read(v); + + do { + if (unlikely(c > 0)) + return false; + } while (!raw_atomic64_try_cmpxchg(v, &c, c - 1)); + + return true; +#endif +} + +/** + * raw_atomic64_dec_if_positive() - atomic decrement if positive with full ordering + * @v: pointer to atomic64_t + * + * If (@v > 0), atomically updates @v to (@v - 1) with full ordering. + * + * Safe to use in noinstr code; prefer atomic64_dec_if_positive() elsewhere. + * + * Return: The old value of (@v - 1), regardless of whether @v was updated. + */ +static __always_inline s64 +raw_atomic64_dec_if_positive(atomic64_t *v) +{ +#if defined(arch_atomic64_dec_if_positive) + return arch_atomic64_dec_if_positive(v); +#else + s64 dec, c = raw_atomic64_read(v); + + do { + dec = c - 1; + if (unlikely(dec < 0)) + break; + } while (!raw_atomic64_try_cmpxchg(v, &c, dec)); + + return dec; +#endif +} + +#endif /* _LINUX_ATOMIC_FALLBACK_H */ +// 2fdd6702823fa842f9cea57a002e6e4476ae780c |