Separate RTEMS Specific Files from Those Direct from FreeBSD

1 files changed, 367 insertions, 0 deletions

diff --git a/rtemsbsd/include/machine/atomic.h b/rtemsbsd/include/machine/atomic.h
new file mode 100644
index 00000000..44c61842
--- /dev/null
+++ b/rtemsbsd/include/machine/atomic.h
@@ -0,0 +1,367 @@
+/**
+ * @file
+ *
+ * @ingroup rtems_bsd_machine
+ *
+ * @brief TODO.
+ */
+
+/*
+ * Copyright (c) 2009, 2010 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Obere Lagerstr. 30
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.com/license/LICENSE.
+ */
+
+#ifndef _RTEMS_BSD_MACHINE_ATOMIC_H_
+#define _RTEMS_BSD_MACHINE_ATOMIC_H_
+
+#ifndef _RTEMS_BSD_MACHINE_RTEMS_BSD_CONFIG_H_
+#error "the header file <rtems/freebsd/machine/rtems-bsd-config.h> must be included first"
+#endif
+
+#define mb() RTEMS_COMPILER_MEMORY_BARRIER()
+#define wmb() RTEMS_COMPILER_MEMORY_BARRIER()
+#define rmb() RTEMS_COMPILER_MEMORY_BARRIER()
+
+static inline void
+atomic_add_int(volatile int *p, int v)
+{
+	rtems_interrupt_level level;
+
+	rtems_interrupt_disable(level);
+	*p += v;
+	rtems_interrupt_enable(level);
+}
+
+#define atomic_add_acq_int atomic_add_int
+#define atomic_add_rel_int atomic_add_int
+
+static inline void
+atomic_subtract_int(volatile int *p, int v)
+{
+	rtems_interrupt_level level;
+
+	rtems_interrupt_disable(level);
+	*p -= v;
+	rtems_interrupt_enable(level);
+}
+
+#define atomic_subtract_acq_int atomic_subtract_int
+#define atomic_subtract_rel_int atomic_subtract_int
+
+static inline void
+atomic_set_int(volatile int *p, int v)
+{
+	rtems_interrupt_level level;
+
+	rtems_interrupt_disable(level);
+	*p |= v;
+	rtems_interrupt_enable(level);
+}
+
+#define atomic_set_acq_int atomic_set_int
+#define atomic_set_rel_int atomic_set_int
+
+static inline void
+atomic_clear_int(volatile int *p, int v)
+{
+	rtems_interrupt_level level;
+
+	rtems_interrupt_disable(level);
+	*p &= ~v;
+	rtems_interrupt_enable(level);
+}
+
+#define atomic_clear_acq_int atomic_clear_int
+#define atomic_clear_rel_int atomic_clear_int
+
+static inline int
+atomic_cmpset_int(volatile int *p, int cmp, int set)
+{
+	rtems_interrupt_level level;
+	int rv;
+
+	rtems_interrupt_disable(level);
+	rv = *p == cmp;
+	if (rv) {
+		*p = set;
+	}
+	rtems_interrupt_enable(level);
+
+	return rv;
+}
+
+#define atomic_cmpset_acq_int atomic_cmpset_int
+#define atomic_cmpset_rel_int atomic_cmpset_int
+
+static inline int
+atomic_fetchadd_int(volatile int *p, int v)
+{
+	rtems_interrupt_level level;
+	int tmp;
+
+	rtems_interrupt_disable(level);
+	tmp = *p;
+	*p += v;
+	rtems_interrupt_enable(level);
+
+	return tmp;
+}
+
+static inline int
+atomic_readandclear_int(volatile int *p)
+{
+	rtems_interrupt_level level;
+	int tmp;
+
+	rtems_interrupt_disable(level);
+	tmp = *p;
+	*p = 0;
+	rtems_interrupt_enable(level);
+
+	return tmp;
+}
+
+static inline int
+atomic_load_acq_int(volatile int *p)
+{
+	return *p;
+}
+
+static inline void
+atomic_store_rel_int(volatile int *p, int v)
+{
+	*p = v;
+}
+
+static inline void
+atomic_add_32(volatile uint32_t *p, uint32_t v)
+{
+	rtems_interrupt_level level;
+
+	rtems_interrupt_disable(level);
+	*p += v;
+	rtems_interrupt_enable(level);
+}
+
+#define atomic_add_acq_32 atomic_add_32
+#define atomic_add_rel_32 atomic_add_32
+
+static inline void
+atomic_subtract_32(volatile uint32_t *p, uint32_t v)
+{
+	rtems_interrupt_level level;
+
+	rtems_interrupt_disable(level);
+	*p -= v;
+	rtems_interrupt_enable(level);
+}
+
+#define atomic_subtract_acq_32 atomic_subtract_32
+#define atomic_subtract_rel_32 atomic_subtract_32
+
+static inline void
+atomic_set_32(volatile uint32_t *p, uint32_t v)
+{
+	rtems_interrupt_level level;
+
+	rtems_interrupt_disable(level);
+	*p |= v;
+	rtems_interrupt_enable(level);
+}
+
+#define atomic_set_acq_32 atomic_set_32
+#define atomic_set_rel_32 atomic_set_32
+
+static inline void
+atomic_clear_32(volatile uint32_t *p, uint32_t v)
+{
+	rtems_interrupt_level level;
+
+	rtems_interrupt_disable(level);
+	*p &= ~v;
+	rtems_interrupt_enable(level);
+}
+
+#define atomic_clear_acq_32 atomic_clear_32
+#define atomic_clear_rel_32 atomic_clear_32
+
+static inline int
+atomic_cmpset_32(volatile uint32_t *p, uint32_t cmp, uint32_t set)
+{
+	rtems_interrupt_level level;
+	int rv;
+
+	rtems_interrupt_disable(level);
+	rv = *p == cmp;
+	if (rv) {
+		*p = set;
+	}
+	rtems_interrupt_enable(level);
+
+	return rv;
+}
+
+#define atomic_cmpset_acq_32 atomic_cmpset_32
+#define atomic_cmpset_rel_32 atomic_cmpset_32
+
+static inline uint32_t
+atomic_fetchadd_32(volatile uint32_t *p, uint32_t v)
+{
+	rtems_interrupt_level level;
+	uint32_t tmp;
+
+	rtems_interrupt_disable(level);
+	tmp = *p;
+	*p += v;
+	rtems_interrupt_enable(level);
+
+	return tmp;
+}
+
+static inline uint32_t
+atomic_readandclear_32(volatile uint32_t *p)
+{
+	rtems_interrupt_level level;
+	uint32_t tmp;
+
+	rtems_interrupt_disable(level);
+	tmp = *p;
+	*p = 0;
+	rtems_interrupt_enable(level);
+
+	return tmp;
+}
+
+static inline uint32_t
+atomic_load_acq_32(volatile uint32_t *p)
+{
+	return *p;
+}
+
+static inline void
+atomic_store_rel_32(volatile uint32_t *p, uint32_t v)
+{
+	*p = v;
+}
+
+static inline void
+atomic_add_long(volatile long *p, long v)
+{
+	rtems_interrupt_level level;
+
+	rtems_interrupt_disable(level);
+	*p += v;
+	rtems_interrupt_enable(level);
+}
+
+#define atomic_add_acq_long atomic_add_long
+#define atomic_add_rel_long atomic_add_long
+
+static inline void
+atomic_subtract_long(volatile long *p, long v)
+{
+	rtems_interrupt_level level;
+
+	rtems_interrupt_disable(level);
+	*p -= v;
+	rtems_interrupt_enable(level);
+}
+
+#define atomic_subtract_acq_long atomic_subtract_long
+#define atomic_subtract_rel_long atomic_subtract_long
+
+static inline void
+atomic_set_long(volatile long *p, long v)
+{
+	rtems_interrupt_level level;
+
+	rtems_interrupt_disable(level);
+	*p |= v;
+	rtems_interrupt_enable(level);
+}
+
+#define atomic_set_acq_long atomic_set_long
+#define atomic_set_rel_long atomic_set_long
+
+static inline void
+atomic_clear_long(volatile long *p, long v)
+{
+	rtems_interrupt_level level;
+
+	rtems_interrupt_disable(level);
+	*p &= ~v;
+	rtems_interrupt_enable(level);
+}
+
+#define atomic_clear_acq_long atomic_clear_long
+#define atomic_clear_rel_long atomic_clear_long
+
+static inline int
+atomic_cmpset_long(volatile long *p, long cmp, long set)
+{
+	rtems_interrupt_level level;
+	int rv;
+
+	rtems_interrupt_disable(level);
+	rv = *p == cmp;
+	if (rv) {
+		*p = set;
+	}
+	rtems_interrupt_enable(level);
+
+	return rv;
+}
+
+#define atomic_cmpset_acq_long atomic_cmpset_long
+#define atomic_cmpset_rel_long atomic_cmpset_long
+
+static inline long
+atomic_fetchadd_long(volatile long *p, long v)
+{
+	rtems_interrupt_level level;
+	long tmp;
+
+	rtems_interrupt_disable(level);
+	tmp = *p;
+	*p += v;
+	rtems_interrupt_enable(level);
+
+	return tmp;
+}
+
+static inline long
+atomic_readandclear_long(volatile long *p)
+{
+	rtems_interrupt_level level;
+	long tmp;
+
+	rtems_interrupt_disable(level);
+	tmp = *p;
+	*p = 0;
+	rtems_interrupt_enable(level);
+
+	return tmp;
+}
+
+static inline long
+atomic_load_acq_long(volatile long *p)
+{
+	return *p;
+}
+
+static inline void
+atomic_store_rel_long(volatile long *p, long v)
+{
+	*p = v;
+}
+
+#endif /* _RTEMS_BSD_MACHINE_ATOMIC_H_ */