tests: build_all: plic: multi instance

Add PLIC multi-instance build-only test.

Signed-off-by: Yong Cong Sin <[email protected]>

tests/drivers/build_all/interrupt_controller/intc_plic/Kconfig

@@ -0,0 +1,4 @@
+config NUM_IRQS
+	int ""
+
+source "Kconfig"

tests/drivers/build_all/interrupt_controller/intc_plic/app.multi_instance.overlay

@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2023 Meta
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+ /{
+	soc {
+		plic1: interrupt-controller@8000000 {
+			riscv,max-priority = <7>;
+			riscv,ndev = < 0x35 >;
+			reg = <0x08000000 0x04000000>;
+			interrupts-extended = <
+				&hlic0 0x03
+				&hlic1 0x03
+				&hlic2 0x03
+				&hlic3 0x03
+				&hlic4 0x03
+				&hlic5 0x03
+				&hlic6 0x03
+				&hlic7 0x03
+			>;
+			interrupt-controller;
+			compatible = "sifive,plic-1.0.0";
+			#address-cells = < 0x00 >;
+			#interrupt-cells = < 0x02 >;
+		};
+	};
+
+	uart1: uart@10000100 {
+		interrupts = < 0x0a 1 >;
+		interrupt-parent = < &plic1 >;
+		clock-frequency = < 0x384000 >;
+		reg = < 0x10000100 0x100 >;
+		compatible = "ns16550";
+		reg-shift = < 0 >;
+	};
+};

tests/drivers/build_all/interrupt_controller/intc_plic/testcase.yaml

@@ -10,3 +10,13 @@ common:
     - plic
 tests:
   drivers.interrupt_controller.intc_plic.build: {}
+  drivers.interrupt_controller.intc_plic.multi_instance.build:
+    extra_args:
+      DTC_OVERLAY_FILE="./app.multi_instance.overlay"
+    extra_configs:
+      - CONFIG_NUM_IRQS=116
+      - CONFIG_MULTI_LEVEL_INTERRUPTS=y
+      - CONFIG_DYNAMIC_INTERRUPTS=y
+      - CONFIG_NUM_2ND_LEVEL_AGGREGATORS=2
+      - CONFIG_2ND_LVL_INTR_01_OFFSET=3
+      - CONFIG_UART_INTERRUPT_DRIVEN=y