test: add vpage and vregion ztests

Add boot-time tests for basic vpage and vregion functionality.

Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>

Author: lyakh

zephyr/test/CMakeLists.txt

@@ -2,6 +2,9 @@ if(CONFIG_SOF_BOOT_TEST)
   zephyr_library_sources_ifdef(CONFIG_VIRTUAL_HEAP
     vmh.c
   )
+  zephyr_library_sources_ifdef(CONFIG_SOF_VREGIONS
+    vpage.c vregion.c
+  )
   zephyr_library_sources_ifdef(CONFIG_USERSPACE
     userspace/ksem.c
   )

zephyr/test/vpage.c

@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright(c) 2026 Intel Corporation.
+ */
+
+#include <errno.h>
+#include <stdbool.h>
+#include <stdlib.h>
+
+#include <sof/boot_test.h>
+#include <sof/lib/vpage.h>
+
+#include <zephyr/logging/log.h>
+#include <zephyr/ztest.h>
+
+LOG_MODULE_DECLARE(sof_boot_test, CONFIG_SOF_LOG_LEVEL);
+
+ZTEST(sof_boot, vpage)
+{
+	void *p1 = vpage_alloc(1);
+
+	zassert_not_null(p1);
+
+	void *p2 = vpage_alloc(2);
+
+	zassert_not_null(p2);
+
+	vpage_free(p1);
+	vpage_free(p2);
+
+	p1 = vpage_alloc(2);
+
+	zassert_not_null(p1);
+
+	vpage_free(p1);
+}

zephyr/test/vregion.c

@@ -0,0 +1,92 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright(c) 2026 Intel Corporation.
+ */
+
+#include <errno.h>
+#include <stdbool.h>
+#include <stdlib.h>
+
+#include <sof/boot_test.h>
+#include <sof/lib/vregion.h>
+
+#include <zephyr/logging/log.h>
+#include <zephyr/ztest.h>
+
+LOG_MODULE_DECLARE(sof_boot_test, CONFIG_SOF_LOG_LEVEL);
+
+static struct vregion *test_vreg_create(void)
+{
+	struct vregion *vreg = vregion_create(CONFIG_MM_DRV_PAGE_SIZE - 100,
+					      CONFIG_MM_DRV_PAGE_SIZE);
+
+	zassert_not_null(vreg);
+
+	return vreg;
+}
+
+static void test_vreg_alloc_lifet(struct vregion *vreg)
+{
+	void *ptr = vregion_alloc(vreg, VREGION_MEM_TYPE_LIFETIME, 2000);
+
+	zassert_not_null(ptr);
+
+	void *ptr_align = vregion_alloc_align(vreg, VREGION_MEM_TYPE_LIFETIME, 2000, 16);
+
+	zassert_not_null(ptr_align);
+	zassert_equal((uintptr_t)ptr_align & 15, 0);
+
+	void *ptr_nomem = vregion_alloc(vreg, VREGION_MEM_TYPE_LIFETIME, 2000);
+
+	zassert_is_null(ptr_nomem);
+
+	vregion_free(vreg, ptr_align);
+	vregion_free(vreg, ptr);
+
+	/* Freeing isn't possible with LIFETIME */
+	ptr_nomem = vregion_alloc(vreg, VREGION_MEM_TYPE_LIFETIME, 2000);
+
+	zassert_is_null(ptr_nomem);
+}
+
+static void test_vreg_alloc_tmp(struct vregion *vreg)
+{
+	void *ptr = vregion_alloc(vreg, VREGION_MEM_TYPE_INTERIM, 20);
+
+	zassert_not_null(ptr);
+
+	void *ptr_align = vregion_alloc_align(vreg, VREGION_MEM_TYPE_INTERIM, 2000, 16);
+
+	zassert_not_null(ptr_align);
+	zassert_equal((uintptr_t)ptr_align & 15, 0);
+
+	void *ptr_nomem = vregion_alloc(vreg, VREGION_MEM_TYPE_INTERIM, 2000);
+
+	zassert_is_null(ptr_nomem);
+
+	vregion_free(vreg, ptr_align);
+	vregion_free(vreg, ptr);
+
+	/* Should be possible to allocate again */
+	ptr = vregion_alloc(vreg, VREGION_MEM_TYPE_INTERIM, 2000);
+
+	zassert_not_null(ptr);
+}
+
+static void test_vreg_destroy(struct vregion *vreg)
+{
+	vregion_info(vreg);
+	vregion_destroy(vreg);
+}
+
+ZTEST(sof_boot, vregion)
+{
+	struct vregion *vreg = test_vreg_create();
+
+	/* Test interim allocations */
+	test_vreg_alloc_tmp(vreg);
+	/* Test lifetime allocations */
+	test_vreg_alloc_lifet(vreg);
+
+	test_vreg_destroy(vreg);
+}