bsps/sparc: Add and use <grlib_impl.h>

Reduce copy and paste.

bsps/sparc/include/grlib_impl.h

@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2017 Cobham Gaisler AB
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#ifndef GRLIB_IMPL_H
+#define GRLIB_IMPL_H
+
+#include <rtems/score/basedefs.h>
+
+/*
+ * Use interrupt lock primitives compatible with SMP defined in RTEMS 4.11.99
+ * and higher.
+ */
+#if (((__RTEMS_MAJOR__ << 16) | (__RTEMS_MINOR__ << 8) | __RTEMS_REVISION__) >= 0x040b63)
+
+#include <rtems/score/isrlock.h>
+
+/* map via rtems_interrupt_lock_* API: */
+#define SPIN_DECLARE(lock) RTEMS_INTERRUPT_LOCK_MEMBER(lock)
+#define SPIN_INIT(lock, name) rtems_interrupt_lock_initialize(lock, name)
+#define SPIN_LOCK(lock, level) rtems_interrupt_lock_acquire_isr(lock, &level)
+#define SPIN_LOCK_IRQ(lock, level) rtems_interrupt_lock_acquire(lock, &level)
+#define SPIN_UNLOCK(lock, level) rtems_interrupt_lock_release_isr(lock, &level)
+#define SPIN_UNLOCK_IRQ(lock, level) rtems_interrupt_lock_release(lock, &level)
+#define SPIN_IRQFLAGS(k) rtems_interrupt_lock_context k
+#define SPIN_ISR_IRQFLAGS(k) SPIN_IRQFLAGS(k)
+#define SPIN_FREE(lock) rtems_interrupt_lock_destroy(lock)
+
+/* turn on/off local CPU's interrupt to ensure HW timing - not SMP safe. */
+#define IRQ_LOCAL_DECLARE(_level) rtems_interrupt_level _level
+#define IRQ_LOCAL_DISABLE(_level) rtems_interrupt_local_disable(_level)
+#define IRQ_LOCAL_ENABLE(_level) rtems_interrupt_local_enable(_level)
+
+#else
+
+#ifdef RTEMS_SMP
+#error SMP mode not compatible with these interrupt lock primitives
+#endif
+
+/* maintain single-core compatibility with older versions of RTEMS: */
+#define SPIN_DECLARE(name)
+#define SPIN_INIT(lock, name)
+#define SPIN_LOCK(lock, level)
+#define SPIN_LOCK_IRQ(lock, level) rtems_interrupt_disable(level)
+#define SPIN_UNLOCK(lock, level)
+#define SPIN_UNLOCK_IRQ(lock, level) rtems_interrupt_enable(level)
+#define SPIN_IRQFLAGS(k) rtems_interrupt_level k
+#define SPIN_ISR_IRQFLAGS(k)
+#define SPIN_FREE(lock)
+
+/* turn on/off local CPU's interrupt to ensure HW timing - not SMP safe. */
+#define IRQ_LOCAL_DECLARE(_level) rtems_interrupt_level _level
+#define IRQ_LOCAL_DISABLE(_level) rtems_interrupt_disable(_level)
+#define IRQ_LOCAL_ENABLE(_level) rtems_interrupt_enable(_level)
+
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* GRLIB_IMPL_H */