arch: common: multilevel irq: verify interrupt level bits configuration

Add `BUILD_ASSERT`s to make sure that the interrupt bits allocated to each levels are enough to cover the number of IRQs in each respective level. Signed-off-by: Yong Cong Sin <[email protected]>
zephyrproject-rtos · Dec 8, 2023 · 9bfe6ef · 9bfe6ef
1 parent 2e37da4
commit 9bfe6ef
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/arch/common/multilevel_irq.c b/arch/common/multilevel_irq.c
@@ -11,6 +11,10 @@
 #include <zephyr/sys/__assert.h>
 #include <zephyr/sys/util.h>
 
+BUILD_ASSERT((CONFIG_NUM_2ND_LEVEL_AGGREGATORS * CONFIG_MAX_IRQ_PER_AGGREGATOR) <=
+		     BIT(CONFIG_2ND_LEVEL_INTERRUPT_BITS),
+	     "L2 bits not enough to cover the number of L2 IRQs");
+
 /*
  * Insert code if the node_id is an interrupt controller
  */
@@ -58,6 +62,10 @@ const struct _irq_parent_entry _lvl2_irq_list[CONFIG_NUM_2ND_LEVEL_AGGREGATORS]
 
 #ifdef CONFIG_3RD_LEVEL_INTERRUPTS
 
+BUILD_ASSERT((CONFIG_NUM_3RD_LEVEL_AGGREGATORS * CONFIG_MAX_IRQ_PER_AGGREGATOR) <=
+		     BIT(CONFIG_3RD_LEVEL_INTERRUPT_BITS),
+	     "L3 bits not enough to cover the number of L3 IRQs");
+
 #define CAT_3RD_LVL_LIST(i, base) \
 	INIT_IRQ_PARENT_OFFSET(INTC_DT_IRQN_GET(CONFIG_3RD_LVL_INTR_0##i##_OFFSET), \
 			       CONFIG_3RD_LVL_INTR_0##i##_OFFSET, IRQ_INDEX_TO_OFFSET(i, base))