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-rw-r--r--include/cutils/atomic-inline.h2
-rw-r--r--include/cutils/atomic-mips64.h251
2 files changed, 253 insertions, 0 deletions
diff --git a/include/cutils/atomic-inline.h b/include/cutils/atomic-inline.h
index 4f90ef1..007a905 100644
--- a/include/cutils/atomic-inline.h
+++ b/include/cutils/atomic-inline.h
@@ -51,6 +51,8 @@ extern "C" {
#include <cutils/atomic-x86.h>
#elif defined(__x86_64__)
#include <cutils/atomic-x86_64.h>
+#elif defined(__mips64)
+#include <cutils/atomic-mips64.h>
#elif defined(__mips__)
#include <cutils/atomic-mips.h>
#else
diff --git a/include/cutils/atomic-mips64.h b/include/cutils/atomic-mips64.h
new file mode 100644
index 0000000..382f209
--- /dev/null
+++ b/include/cutils/atomic-mips64.h
@@ -0,0 +1,251 @@
+/*
+ * 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");
+}
+
+#if ANDROID_SMP == 0
+extern ANDROID_ATOMIC_INLINE void android_memory_barrier(void)
+{
+ android_compiler_barrier();
+}
+extern ANDROID_ATOMIC_INLINE void android_memory_store_barrier(void)
+{
+ android_compiler_barrier();
+}
+#else
+extern ANDROID_ATOMIC_INLINE void android_memory_barrier(void)
+{
+ __asm__ __volatile__ ("sync" : : : "memory");
+}
+extern ANDROID_ATOMIC_INLINE void android_memory_store_barrier(void)
+{
+ __asm__ __volatile__ ("sync" : : : "memory");
+}
+#endif
+
+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
+int64_t android_atomic_acquire_load64(volatile const int64_t *ptr)
+{
+ int64_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
+int64_t android_atomic_release_load64(volatile const int64_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_acquire_store64(int64_t value, volatile int64_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
+void android_atomic_release_store64(int64_t value, volatile int64_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
+int64_t android_atomic_cas64(int64_t old_value, int64_t new_value,
+ volatile int64_t *ptr)
+{
+ return __sync_val_compare_and_swap(ptr, old_value, new_value) != 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
+int64_t android_atomic_acquire_cas64(int64_t old_value, int64_t new_value,
+ volatile int64_t *ptr)
+{
+ int status = android_atomic_cas64(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
+int64_t android_atomic_release_cas64(int64_t old_value, int64_t new_value,
+ volatile int64_t *ptr)
+{
+ android_memory_barrier();
+ return android_atomic_cas64(old_value, new_value, ptr);
+}
+
+extern ANDROID_ATOMIC_INLINE
+int32_t android_atomic_swap(int32_t new_value, volatile int32_t *ptr)
+{
+ int32_t prev, status;
+ do {
+ __asm__ __volatile__ (
+ " move %[status], %[new_value]\n"
+ " ll %[prev], (%[ptr])\n"
+ " sc %[status], (%[ptr])\n"
+ : [prev] "=&r" (prev), [status] "=&r" (status)
+ : [ptr] "r" (ptr), [new_value] "r" (new_value)
+ );
+ } while (__builtin_expect(status == 0, 0));
+ android_memory_barrier();
+ return prev;
+}
+
+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 */
generated by cgit v1.1 at 2024-12-27 08:28:36 +0000