1 files changed, 97 insertions, 0 deletions
diff --git a/bsps/sparc/leon3/start/bspsmp.c b/bsps/sparc/leon3/start/bspsmp.c
new file mode 100644
index 0000000000..280788fa1c
--- /dev/null
+++ b/bsps/sparc/leon3/start/bspsmp.c
@@ -0,0 +1,97 @@
+/**
+ * @file
+ * @ingroup sparc_leon3
+ * @brief LEON3 SMP BSP Support
+ */
+
+/*
+ *  COPYRIGHT (c) 1989-2011.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  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.
+ */
+
+#include <bsp.h>
+#include <bsp/bootcard.h>
+#include <bsp/fatal.h>
+#include <leon.h>
+#include <rtems/bspIo.h>
+#include <rtems/score/smpimpl.h>
+#include <stdlib.h>
+
+#if !defined(__leon__) || defined(RTEMS_PARAVIRT)
+uint32_t _CPU_SMP_Get_current_processor( void )
+{
+  return _LEON3_Get_current_processor();
+}
+#endif
+
+static rtems_isr bsp_inter_processor_interrupt(
+  rtems_vector_number vector
+)
+{
+  _SMP_Inter_processor_interrupt_handler();
+}
+
+void bsp_start_on_secondary_processor()
+{
+  uint32_t cpu_index_self = _CPU_SMP_Get_current_processor();
+
+  /*
+   * If data cache snooping is not enabled we terminate using BSP_fatal_exit()
+   * instead of bsp_fatal().  This is done since the latter function tries to
+   * acquire a ticket lock, an operation which requires data cache snooping to
+   * be enabled.
+   */
+  if ( !leon3_data_cache_snooping_enabled() )
+    BSP_fatal_exit( LEON3_FATAL_INVALID_CACHE_CONFIG_SECONDARY_PROCESSOR );
+
+  /* Unmask IPI interrupts at Interrupt controller for this CPU */
+  LEON3_IrqCtrl_Regs->mask[cpu_index_self] |= 1U << LEON3_mp_irq;
+
+  _SMP_Start_multitasking_on_secondary_processor();
+}
+
+uint32_t _CPU_SMP_Initialize( void )
+{
+  if ( !leon3_data_cache_snooping_enabled() )
+    bsp_fatal( LEON3_FATAL_INVALID_CACHE_CONFIG_MAIN_PROCESSOR );
+
+  if ( rtems_configuration_get_maximum_processors() > 1 ) {
+    LEON_Unmask_interrupt(LEON3_mp_irq);
+    set_vector(bsp_inter_processor_interrupt, LEON_TRAP_TYPE(LEON3_mp_irq), 1);
+  }
+
+  return leon3_get_cpu_count(LEON3_IrqCtrl_Regs);
+}
+
+bool _CPU_SMP_Start_processor( uint32_t cpu_index )
+{
+  #if defined(RTEMS_DEBUG)
+    printk( "Waking CPU %d\n", cpu_index );
+  #endif
+
+  LEON3_IrqCtrl_Regs->mpstat = 1U << cpu_index;
+
+  return true;
+}
+
+void _CPU_SMP_Finalize_initialization( uint32_t cpu_count )
+{
+  (void) cpu_count;
+
+  /* Nothing to do */
+}
+
+void _CPU_SMP_Prepare_start_multitasking( void )
+{
+  rtems_cache_invalidate_entire_instruction();
+}
+
+void _CPU_SMP_Send_interrupt(uint32_t target_processor_index)
+{
+  /* send interrupt to destination CPU */
+  LEON3_IrqCtrl_Regs->force[target_processor_index] = 1 << LEON3_mp_irq;
+}