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authorRickard Green <[email protected]>2011-10-14 10:45:43 +0200
committerRickard Green <[email protected]>2011-10-14 10:45:43 +0200
commit55358c54778ead444e51f565d00175ba887ef182 (patch)
tree74285e652b470881412ddb181a86f3095caef634 /erts/include/internal/tile/atomic.h
parentb6dc1a844eab061d0a7153d46e7e68296f15a504 (diff)
parent0204e80cba378dfc1140a7f98d96705d470bddde (diff)
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Merge branch 'rickard/atomics-api/OTP-9014' and OTP_R14B04
Conflicts: erts/aclocal.m4 erts/emulator/beam/erl_db.c erts/emulator/sys/win32/sys.c erts/include/internal/ethread_header_config.h.in
Diffstat (limited to 'erts/include/internal/tile/atomic.h')
-rw-r--r--erts/include/internal/tile/atomic.h136
1 files changed, 38 insertions, 98 deletions
diff --git a/erts/include/internal/tile/atomic.h b/erts/include/internal/tile/atomic.h
index 5697afda25..1f1553c346 100644
--- a/erts/include/internal/tile/atomic.h
+++ b/erts/include/internal/tile/atomic.h
@@ -25,6 +25,7 @@
#define ETHREAD_TILE_ATOMIC_H
#define ETHR_HAVE_NATIVE_ATOMIC32 1
+#define ETHR_NATIVE_ATOMIC32_IMPL "tilera"
#include <atomic.h>
@@ -34,27 +35,25 @@ typedef struct {
volatile ethr_sint32_t counter;
} ethr_native_atomic32_t;
-#define ETHR_MEMORY_BARRIER __insn_mf()
-
#if defined(ETHR_TRY_INLINE_FUNCS) || defined(ETHR_ATOMIC_IMPL__)
+#define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_ADDR 1
+
static ETHR_INLINE ethr_sint32_t *
ethr_native_atomic32_addr(ethr_native_atomic32_t *var)
{
return (ethr_sint32_t *) &var->counter;
}
+#define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_INIT 1
+
static ETHR_INLINE void
ethr_native_atomic32_init(ethr_native_atomic32_t *var, ethr_sint32_t i)
{
var->counter = i;
}
-static ETHR_INLINE void
-ethr_native_atomic32_set(ethr_native_atomic32_t *var, ethr_sint32_t i)
-{
- atomic_exchange_acq(&var->counter, i);
-}
+#define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_READ 1
static ETHR_INLINE ethr_sint32_t
ethr_native_atomic32_read(ethr_native_atomic32_t *var)
@@ -62,139 +61,80 @@ ethr_native_atomic32_read(ethr_native_atomic32_t *var)
return var->counter;
}
+#define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_READ_ACQB 1
+
+static ETHR_INLINE ethr_sint32_t
+ethr_native_atomic32_read_acqb(ethr_native_atomic32_t *var)
+{
+ return atomic_compare_and_exchange_val_acq(&var->counter,
+ 0x81818181,
+ 0x81818181);
+}
+
+#define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_ADD 1
+
static ETHR_INLINE void
ethr_native_atomic32_add(ethr_native_atomic32_t *var, ethr_sint32_t incr)
{
- ETHR_MEMORY_BARRIER;
atomic_add(&var->counter, incr);
- ETHR_MEMORY_BARRIER;
-}
-
+}
+
+#define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_INC 1
+
static ETHR_INLINE void
ethr_native_atomic32_inc(ethr_native_atomic32_t *var)
{
- ETHR_MEMORY_BARRIER;
atomic_increment(&var->counter);
- ETHR_MEMORY_BARRIER;
}
+#define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_DEC 1
+
static ETHR_INLINE void
ethr_native_atomic32_dec(ethr_native_atomic32_t *var)
{
- ETHR_MEMORY_BARRIER;
atomic_decrement(&var->counter);
- ETHR_MEMORY_BARRIER;
}
+#define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_ADD_RETURN 1
+
static ETHR_INLINE ethr_sint32_t
ethr_native_atomic32_add_return(ethr_native_atomic32_t *var, ethr_sint32_t incr)
{
- ethr_sint32_t res;
- ETHR_MEMORY_BARRIER;
- res = atomic_exchange_and_add(&var->counter, incr) + incr;
- ETHR_MEMORY_BARRIER;
- return res;
+ return atomic_exchange_and_add(&var->counter, incr) + incr;
}
-static ETHR_INLINE ethr_sint32_t
-ethr_native_atomic32_inc_return(ethr_native_atomic32_t *var)
-{
- return ethr_native_atomic32_add_return(var, 1);
-}
-
-static ETHR_INLINE ethr_sint32_t
-ethr_native_atomic32_dec_return(ethr_native_atomic32_t *var)
-{
- return ethr_native_atomic32_add_return(var, -1);
-}
+#define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_AND_RETOLD 1
static ETHR_INLINE ethr_sint32_t
ethr_native_atomic32_and_retold(ethr_native_atomic32_t *var, ethr_sint32_t mask)
{
- ethr_sint32_t res;
- ETHR_MEMORY_BARRIER;
- res = atomic_and_val(&var->counter, mask);
- ETHR_MEMORY_BARRIER;
- return res;
+ return atomic_and_val(&var->counter, mask);
}
+#define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_OR_RETOLD 1
+
static ETHR_INLINE ethr_sint32_t
ethr_native_atomic32_or_retold(ethr_native_atomic32_t *var, ethr_sint32_t mask)
{
- ethr_sint32_t res;
- ETHR_MEMORY_BARRIER;
- res = atomic_or_val(&var->counter, mask);
- ETHR_MEMORY_BARRIER;
- return res;
+ return atomic_or_val(&var->counter, mask);
}
+#define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_XCHG_ACQB 1
+
static ETHR_INLINE ethr_sint32_t
-ethr_native_atomic32_xchg(ethr_native_atomic32_t *var, ethr_sint32_t val)
+ethr_native_atomic32_xchg_acqb(ethr_native_atomic32_t *var, ethr_sint32_t val)
{
- ETHR_MEMORY_BARRIER;
return atomic_exchange_acq(&var->counter, val);
}
-static ETHR_INLINE ethr_sint32_t
-ethr_native_atomic32_cmpxchg(ethr_native_atomic32_t *var,
- ethr_sint32_t new,
- ethr_sint32_t expected)
-{
- ETHR_MEMORY_BARRIER;
- return atomic_compare_and_exchange_val_acq(&var->counter, new, expected);
-}
-
-/*
- * Atomic ops with at least specified barriers.
- */
-
-static ETHR_INLINE ethr_sint32_t
-ethr_native_atomic32_read_acqb(ethr_native_atomic32_t *var)
-{
- ethr_sint32_t res = ethr_native_atomic32_read(var);
- ETHR_MEMORY_BARRIER;
- return res;
-}
-
-static ETHR_INLINE ethr_sint32_t
-ethr_native_atomic32_inc_return_acqb(ethr_native_atomic32_t *var)
-{
- return ethr_native_atomic32_inc_return(var);
-}
-
-static ETHR_INLINE void
-ethr_native_atomic32_set_relb(ethr_native_atomic32_t *var, ethr_sint32_t val)
-{
- ETHR_MEMORY_BARRIER;
- ethr_native_atomic32_set(var, val);
-}
-
-static ETHR_INLINE void
-ethr_native_atomic32_dec_relb(ethr_native_atomic32_t *var)
-{
- ethr_native_atomic32_dec(var);
-}
-
-static ETHR_INLINE ethr_sint32_t
-ethr_native_atomic32_dec_return_relb(ethr_native_atomic32_t *var)
-{
- return ethr_native_atomic32_dec_return(var);
-}
+#define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_CMPXCHG_ACQB 1
static ETHR_INLINE ethr_sint32_t
ethr_native_atomic32_cmpxchg_acqb(ethr_native_atomic32_t *var,
ethr_sint32_t new,
- ethr_sint32_t exp)
+ ethr_sint32_t expected)
{
- return ethr_native_atomic32_cmpxchg(var, new, exp);
-}
-
-static ETHR_INLINE ethr_sint32_t
-ethr_native_atomic32_cmpxchg_relb(ethr_native_atomic32_t *var,
- ethr_sint32_t new,
- ethr_sint32_t exp)
-{
- return ethr_native_atomic32_cmpxchg(var, new, exp);
+ return atomic_compare_and_exchange_val_acq(&var->counter, new, expected);
}
#endif /* ETHR_TRY_INLINE_FUNCS */