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Diffstat (limited to 'include/cutils/atomic-mips64.h')
| -rw-r--r-- | include/cutils/atomic-mips64.h | 166 |
1 files changed, 0 insertions, 166 deletions
diff --git a/include/cutils/atomic-mips64.h b/include/cutils/atomic-mips64.h deleted file mode 100644 index 9d8f65e..0000000 --- a/include/cutils/atomic-mips64.h +++ /dev/null @@ -1,166 +0,0 @@ -/* - * Copyright (C) 2010 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#ifndef ANDROID_CUTILS_ATOMIC_MIPS64_H -#define ANDROID_CUTILS_ATOMIC_MIPS64_H - -#include <stdint.h> - -#ifndef ANDROID_ATOMIC_INLINE -#define ANDROID_ATOMIC_INLINE inline __attribute__((always_inline)) -#endif - -extern ANDROID_ATOMIC_INLINE void android_compiler_barrier(void) -{ - __asm__ __volatile__ ("" : : : "memory"); -} - -extern ANDROID_ATOMIC_INLINE void android_memory_barrier(void) -{ - __asm__ __volatile__ ("sync" : : : "memory"); -} - -extern ANDROID_ATOMIC_INLINE -int32_t android_atomic_acquire_load(volatile const int32_t *ptr) -{ - int32_t value = *ptr; - android_memory_barrier(); - return value; -} - -extern ANDROID_ATOMIC_INLINE -int32_t android_atomic_release_load(volatile const int32_t *ptr) -{ - android_memory_barrier(); - return *ptr; -} - -extern ANDROID_ATOMIC_INLINE -void android_atomic_acquire_store(int32_t value, volatile int32_t *ptr) -{ - *ptr = value; - android_memory_barrier(); -} - -extern ANDROID_ATOMIC_INLINE -void android_atomic_release_store(int32_t value, volatile int32_t *ptr) -{ - android_memory_barrier(); - *ptr = value; -} - -extern ANDROID_ATOMIC_INLINE -int android_atomic_cas(int32_t old_value, int32_t new_value, volatile int32_t *ptr) -{ - int32_t prev, status; - do { - __asm__ __volatile__ ( - " ll %[prev], (%[ptr])\n" - " li %[status], 1\n" - " bne %[prev], %[old], 9f\n" - " move %[status], %[new_value]\n" - " sc %[status], (%[ptr])\n" - "9:\n" - : [prev] "=&r" (prev), [status] "=&r" (status) - : [ptr] "r" (ptr), [old] "r" (old_value), [new_value] "r" (new_value) - ); - } while (__builtin_expect(status == 0, 0)); - return prev != old_value; -} - -extern ANDROID_ATOMIC_INLINE -int android_atomic_acquire_cas(int32_t old_value, - int32_t new_value, - volatile int32_t *ptr) -{ - int status = android_atomic_cas(old_value, new_value, ptr); - android_memory_barrier(); - return status; -} - -extern ANDROID_ATOMIC_INLINE -int android_atomic_release_cas(int32_t old_value, - int32_t new_value, - volatile int32_t *ptr) -{ - android_memory_barrier(); - return android_atomic_cas(old_value, new_value, ptr); -} - -extern ANDROID_ATOMIC_INLINE -int32_t android_atomic_add(int32_t increment, volatile int32_t *ptr) -{ - int32_t prev, status; - android_memory_barrier(); - do { - __asm__ __volatile__ ( - " ll %[prev], (%[ptr])\n" - " addu %[status], %[prev], %[inc]\n" - " sc %[status], (%[ptr])\n" - : [status] "=&r" (status), [prev] "=&r" (prev) - : [ptr] "r" (ptr), [inc] "Ir" (increment) - ); - } while (__builtin_expect(status == 0, 0)); - return prev; -} - -extern ANDROID_ATOMIC_INLINE int32_t -android_atomic_inc(volatile int32_t *addr) -{ - return android_atomic_add(1, addr); -} - -extern ANDROID_ATOMIC_INLINE int32_t -android_atomic_dec(volatile int32_t *addr) -{ - return android_atomic_add(-1, addr); -} - -extern ANDROID_ATOMIC_INLINE int32_t -android_atomic_and(int32_t value, volatile int32_t *ptr) -{ - int32_t prev, status; - android_memory_barrier(); - do { - __asm__ __volatile__ ( - " ll %[prev], (%[ptr])\n" - " and %[status], %[prev], %[value]\n" - " sc %[status], (%[ptr])\n" - : [prev] "=&r" (prev), [status] "=&r" (status) - : [ptr] "r" (ptr), [value] "Ir" (value) - ); - } while (__builtin_expect(status == 0, 0)); - return prev; -} - -extern ANDROID_ATOMIC_INLINE int32_t -android_atomic_or(int32_t value, volatile int32_t *ptr) -{ - int32_t prev, status; - android_memory_barrier(); - do { - __asm__ __volatile__ ( - " ll %[prev], (%[ptr])\n" - " or %[status], %[prev], %[value]\n" - " sc %[status], (%[ptr])\n" - : [prev] "=&r" (prev), [status] "=&r" (status) - : [ptr] "r" (ptr), [value] "Ir" (value) - ); - } while (__builtin_expect(status == 0, 0)); - return prev; -} - -#endif /* ANDROID_CUTILS_ATOMIC_MIPS_H */ |