From af207fa9f6ac891b9a61f36bd8382eb89358aeca Mon Sep 17 00:00:00 2001
From: Sebastian Huber <sebastian.huber@embedded-brains.de>
Date: Tue, 11 Jul 2017 11:54:30 +0200
Subject: Add interrupt vector set/get affinity

Close #3071.
---
 c/src/lib/libbsp/sparc/leon3/startup/eirq.c | 41 +++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

(limited to 'c/src/lib/libbsp/sparc/leon3/startup/eirq.c')

diff --git a/c/src/lib/libbsp/sparc/leon3/startup/eirq.c b/c/src/lib/libbsp/sparc/leon3/startup/eirq.c
index 7e8eb03762..1f7be1ba74 100644
--- a/c/src/lib/libbsp/sparc/leon3/startup/eirq.c
+++ b/c/src/lib/libbsp/sparc/leon3/startup/eirq.c
@@ -11,6 +11,7 @@
  */
 
 #include <leon.h>
+#include <bsp/irq.h>
 
 /* GRLIB extended IRQ controller IRQ number */
 int LEON3_IrqCtrl_EIrq = -1;
@@ -23,3 +24,43 @@ void leon3_ext_irq_init(void)
     LEON3_IrqCtrl_EIrq = (LEON3_IrqCtrl_Regs->mpstat >> 16) & 0xf;
   }
 }
+
+void bsp_interrupt_set_affinity(
+  rtems_vector_number vector,
+  const Processor_mask *affinity
+)
+{
+  uint32_t unmasked = 0;
+  uint32_t cpu_count = rtems_get_processor_count();
+  uint32_t cpu_index;
+
+  for (cpu_index = 0; cpu_index < cpu_count; ++cpu_index) {
+    if (_Processor_mask_Is_set(affinity, cpu_index)) {
+      BSP_Cpu_Unmask_interrupt(vector, cpu_index);
+      ++unmasked;
+    }
+  }
+
+  if (unmasked > 1) {
+    LEON_Enable_interrupt_broadcast(vector);
+  } else {
+    LEON_Disable_interrupt_broadcast(vector);
+  }
+}
+
+void bsp_interrupt_get_affinity(
+  rtems_vector_number vector,
+  Processor_mask *affinity
+)
+{
+  uint32_t cpu_count = rtems_get_processor_count();
+  uint32_t cpu_index;
+
+  _Processor_mask_Zero(affinity);
+
+  for (cpu_index = 0; cpu_index < cpu_count; ++cpu_index) {
+    if (!BSP_Cpu_Is_interrupt_masked(vector, cpu_index)) {
+      _Processor_mask_Set(affinity, cpu_index);
+    }
+  }
+}
-- 
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