tests: add test for gen_isr_table

This test is intended to verify that the SW ISR and vector tables
have been populated correctly.

Change-Id: Ic7f50c02dc0807d7ddefa710da67f818ff707ad6
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>

tests/kernel/gen_isr_table/Makefile

@@ -0,0 +1,4 @@
+CONF_FILE = prj.conf
+BOARD ?= qemu_x86
+
+include $(ZEPHYR_BASE)/Makefile.test

tests/kernel/gen_isr_table/prj.conf

@@ -0,0 +1,2 @@
+# Nothing yet
+

tests/kernel/gen_isr_table/src/Makefile

@@ -0,0 +1,4 @@
+ccflags-y += -I${ZEPHYR_BASE}/tests/include
+
+obj-y = main.o
+

tests/kernel/gen_isr_table/src/main.c

@@ -0,0 +1,152 @@
+/*
+ * Copyright (c) 2017 Intel Corporation
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr.h>
+#include <irq.h>
+#include <tc_util.h>
+#include <sw_isr_table.h>
+
+extern uint32_t _irq_vector_table[];
+
+#if defined(_ARCH_IRQ_DIRECT_CONNECT) && defined(CONFIG_GEN_IRQ_VECTOR_TABLE)
+#define HAS_DIRECT_IRQS
+#endif
+
+#ifdef HAS_DIRECT_IRQS
+ISR_DIRECT_DECLARE(isr1)
+{
+	printk("isr1\n");
+	return 0;
+}
+
+ISR_DIRECT_DECLARE(isr2)
+{
+	printk("isr2\n");
+	return 1;
+}
+#endif
+
+void isr3(void *param)
+{
+	printk("isr3 %p\n", param);
+}
+
+
+void isr4(void *param)
+{
+	printk("isr4 %p\n", param);
+}
+
+#define ISR1_OFFSET	0
+#define ISR2_OFFSET	1
+#define ISR3_OFFSET	2
+#define ISR4_OFFSET	3
+
+#define IRQ_LINE(offset)	(CONFIG_NUM_IRQS - ((offset) + 1))
+#define TABLE_INDEX(offset)	(IRQ_TABLE_SIZE - ((offset) + 1))
+
+#define ISR3_ARG	0xb01dface
+#define ISR4_ARG	0xca55e77e
+
+#ifdef CONFIG_GEN_IRQ_VECTOR_TABLE
+static int check_vector(void *isr, int offset)
+{
+	TC_PRINT("Checking _irq_vector_table entry %d for irq %d\n",
+		 TABLE_INDEX(offset), IRQ_LINE(offset));
+
+	if (_irq_vector_table[TABLE_INDEX(offset)] != (uint32_t)isr) {
+		TC_PRINT("bad entry %d in vector table\n", TABLE_INDEX(offset));
+		return -1;
+	}
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_GEN_SW_ISR_TABLE
+static int check_sw_isr(void *isr, uint32_t arg, int offset)
+{
+	struct _isr_table_entry *e = &_sw_isr_table[TABLE_INDEX(offset)];
+#ifdef CONFIG_GEN_IRQ_VECTOR_TABLE
+	void *v = (void *)_irq_vector_table[TABLE_INDEX(offset)];
+#endif
+
+	TC_PRINT("Checking _sw_isr_table entry %d for irq %d\n",
+		 TABLE_INDEX(offset), IRQ_LINE(offset));
+
+	if (e->arg != (void *)arg) {
+		TC_PRINT("bad argument in SW isr table\n");
+		TC_PRINT("expected %p got %p\n", (void *)arg, e->arg);
+		return -1;
+	}
+	if (e->isr != isr) {
+		TC_PRINT("Bad ISR in SW isr table\n");
+		TC_PRINT("expected %p got %p\n", (void *)isr, e->isr);
+		return -1;
+	}
+#ifdef CONFIG_GEN_IRQ_VECTOR_TABLE
+	if (v != _isr_wrapper) {
+		TC_PRINT("Vector does not point to _isr_wrapper\n");
+		TC_PRINT("expected %p got %p\n", _isr_wrapper, v);
+		return -1;
+	}
+#endif
+
+	return 0;
+}
+#endif
+
+void main(void)
+{
+	int rv;
+
+	TC_START("Test gen_isr_tables");
+
+	TC_PRINT("IRQ configuration (total lines %d):\n", CONFIG_NUM_IRQS);
+
+#ifdef HAS_DIRECT_IRQS
+	IRQ_DIRECT_CONNECT(IRQ_LINE(ISR1_OFFSET), 0, isr1, 0);
+	IRQ_DIRECT_CONNECT(IRQ_LINE(ISR2_OFFSET), 0, isr2, 0);
+	TC_PRINT("isr1 isr=%p irq=%d\n", isr1, IRQ_LINE(ISR1_OFFSET));
+	TC_PRINT("isr2 isr=%p irq=%d\n", isr2, IRQ_LINE(ISR2_OFFSET));
+
+	if (check_vector(isr1, ISR1_OFFSET)) {
+		rv = TC_FAIL;
+		goto done;
+	}
+
+	if (check_vector(isr2, ISR2_OFFSET)) {
+		rv = TC_FAIL;
+		goto done;
+	}
+#endif
+
+#ifdef CONFIG_GEN_SW_ISR_TABLE
+	IRQ_CONNECT(IRQ_LINE(ISR3_OFFSET), 1, isr3, ISR3_ARG, 0);
+	IRQ_CONNECT(IRQ_LINE(ISR4_OFFSET), 2, isr4, ISR4_ARG, 0);
+	TC_PRINT("isr3 isr=%p irq=%d param=%p\n", isr3, IRQ_LINE(ISR3_OFFSET),
+		 (void *)ISR3_ARG);
+	TC_PRINT("isr4 isr=%p irq=%d param=%p\n", isr4, IRQ_LINE(ISR4_OFFSET),
+		 (void *)ISR4_ARG);
+	TC_PRINT("_sw_isr_table at location %p\n", _sw_isr_table);
+
+	if (check_sw_isr(isr3, ISR3_ARG, ISR3_OFFSET)) {
+		rv = TC_FAIL;
+		goto done;
+	}
+
+	if (check_sw_isr(isr4, ISR4_ARG, ISR4_OFFSET)) {
+		rv = TC_FAIL;
+		goto done;
+	}
+#endif
+
+	rv = TC_PASS;
+done:
+	TC_END_RESULT(rv);
+	TC_END_REPORT(rv);
+}
+
+

tests/kernel/gen_isr_table/testcase.ini

@@ -0,0 +1,4 @@
+[test]
+tags = core
+filter = CONFIG_GEN_ISR_TABLES
+