The R13B03 release.OTP_R13B03

1 files changed, 128 insertions, 0 deletions

diff --git a/erts/include/internal/tile/atomic.h b/erts/include/internal/tile/atomic.h
new file mode 100644
index 0000000000..0622b53729
--- /dev/null
+++ b/erts/include/internal/tile/atomic.h
@@ -0,0 +1,128 @@
+/*
+ * %CopyrightBegin%
+ * 
+ * Copyright Ericsson AB 2008-2009. All Rights Reserved.
+ * 
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ * 
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ * 
+ * %CopyrightEnd%
+ */
+
+/*
+ * Native ethread atomics on TILE64/TILEPro.
+ *
+ */
+#ifndef ETHREAD_TILE_ATOMIC_H
+#define ETHREAD_TILE_ATOMIC_H
+
+#include <atomic.h>
+
+/* An atomic is an aligned int accessed via locked operations.
+ */
+typedef struct {
+    volatile long counter;
+} ethr_native_atomic_t;
+
+#ifdef ETHR_TRY_INLINE_FUNCS
+
+static ETHR_INLINE void
+ethr_native_atomic_init(ethr_native_atomic_t *var, long i)
+{
+    var->counter = i;
+}
+
+static ETHR_INLINE void
+ethr_native_atomic_set(ethr_native_atomic_t *var, long i)
+{
+    __insn_mf();
+    atomic_exchange_acq(&var->counter, i);
+}
+
+static ETHR_INLINE long
+ethr_native_atomic_read(ethr_native_atomic_t *var)
+{
+    return var->counter;
+}
+
+static ETHR_INLINE void
+ethr_native_atomic_add(ethr_native_atomic_t *var, long incr)
+{
+    __insn_mf();
+    atomic_add(&var->counter, incr);
+}      
+       
+static ETHR_INLINE void
+ethr_native_atomic_inc(ethr_native_atomic_t *var)
+{
+    __insn_mf();
+    atomic_increment(&var->counter);
+}
+
+static ETHR_INLINE void
+ethr_native_atomic_dec(ethr_native_atomic_t *var)
+{
+    __insn_mf();
+    atomic_decrement(&var->counter);
+}
+
+static ETHR_INLINE long
+ethr_native_atomic_add_return(ethr_native_atomic_t *var, long incr)
+{
+    __insn_mf();
+    return atomic_exchange_and_add(&var->counter, incr) + incr;
+}
+
+static ETHR_INLINE long
+ethr_native_atomic_inc_return(ethr_native_atomic_t *var)
+{
+    return ethr_native_atomic_add_return(&var->counter, 1);
+}
+
+static ETHR_INLINE long
+ethr_native_atomic_dec_return(ethr_native_atomic_t *var)
+{
+    return ethr_native_atomic_add_return(&var->counter, -1);
+}
+
+static ETHR_INLINE long
+ethr_native_atomic_and_retold(ethr_native_atomic_t *var, long mask)
+{
+    /* Implement a barrier suitable for a mutex unlock. */
+    __insn_mf();
+    return atomic_and_val(&var->counter, mask);
+}
+
+static ETHR_INLINE long
+ethr_native_atomic_or_retold(ethr_native_atomic_t *var, long mask)
+{
+    __insn_mf();
+    return atomic_or_val(&var->counter, mask);
+}
+
+static ETHR_INLINE long
+ethr_native_atomic_xchg(ethr_native_atomic_t *var, long val)
+{   
+    __insn_mf();
+    return atomic_exchange_acq(&var->counter, val);
+} 
+
+static ETHR_INLINE long
+ethr_native_atomic_cmpxchg(ethr_native_atomic_t *var, long new, long expected)
+{
+    /* Implement a barrier suitable for a mutex unlock. */
+    __insn_mf();
+    return atomic_compare_and_exchange_val_acq(&var->counter, new, expected);
+}
+
+#endif /* ETHR_TRY_INLINE_FUNCS */
+
+#endif /* ETHREAD_TILE_ATOMIC_H */