From af1a266670d040d2f4083ff309d732d648afba2a Mon Sep 17 00:00:00 2001
From: Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com>
Date: Tue, 10 Oct 2023 14:33:42 +0000
Subject: Add submodule dependency files
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
---
roms/u-boot/test/dm/devres.c | 189 +++++++++++++++++++++++++++++++++++++++++++
1 file changed, 189 insertions(+)
create mode 100644 roms/u-boot/test/dm/devres.c
(limited to 'roms/u-boot/test/dm/devres.c')
diff --git a/roms/u-boot/test/dm/devres.c b/roms/u-boot/test/dm/devres.c
new file mode 100644
index 000000000..4f959d11d
--- /dev/null
+++ b/roms/u-boot/test/dm/devres.c
@@ -0,0 +1,189 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Tests for the devres (
+ *
+ * Copyright 2019 Google LLC
+ */
+
+#include <common.h>
+#include <errno.h>
+#include <dm.h>
+#include <log.h>
+#include <malloc.h>
+#include <dm/device-internal.h>
+#include <dm/devres.h>
+#include <dm/test.h>
+#include <dm/uclass-internal.h>
+#include <test/ut.h>
+
+/* Test that devm_kmalloc() allocates memory, free when device is removed */
+static int dm_test_devres_alloc(struct unit_test_state *uts)
+{
+ ulong mem_start, mem_dev, mem_kmalloc;
+ struct udevice *dev;
+ void *ptr;
+
+ mem_start = ut_check_delta(0);
+ ut_assertok(uclass_first_device_err(UCLASS_TEST, &dev));
+ mem_dev = ut_check_delta(mem_start);
+ ut_assert(mem_dev > 0);
+
+ /* This should increase allocated memory */
+ ptr = devm_kmalloc(dev, TEST_DEVRES_SIZE, 0);
+ ut_assert(ptr != NULL);
+ mem_kmalloc = ut_check_delta(mem_dev);
+ ut_assert(mem_kmalloc > 0);
+
+ /* Check that ptr is freed */
+ device_remove(dev, DM_REMOVE_NORMAL);
+ ut_asserteq(0, ut_check_delta(mem_start));
+
+ return 0;
+}
+DM_TEST(dm_test_devres_alloc, UT_TESTF_SCAN_PDATA);
+
+/* Test devm_kfree() can be used to free memory too */
+static int dm_test_devres_free(struct unit_test_state *uts)
+{
+ ulong mem_start, mem_dev, mem_kmalloc;
+ struct udevice *dev;
+ void *ptr;
+
+ mem_start = ut_check_delta(0);
+ ut_assertok(uclass_first_device_err(UCLASS_TEST, &dev));
+ mem_dev = ut_check_delta(mem_start);
+ ut_assert(mem_dev > 0);
+
+ ptr = devm_kmalloc(dev, TEST_DEVRES_SIZE, 0);
+ ut_assert(ptr != NULL);
+ mem_kmalloc = ut_check_delta(mem_dev);
+ ut_assert(mem_kmalloc > 0);
+
+ /* Free the ptr and check that memory usage goes down */
+ devm_kfree(dev, ptr);
+ ut_assert(ut_check_delta(mem_kmalloc) < 0);
+
+ device_remove(dev, DM_REMOVE_NORMAL);
+ ut_asserteq(0, ut_check_delta(mem_start));
+
+ return 0;
+}
+DM_TEST(dm_test_devres_free, UT_TESTF_SCAN_PDATA);
+
+
+/* Test that kzalloc() returns memory that is zeroed */
+static int dm_test_devres_kzalloc(struct unit_test_state *uts)
+{
+ struct udevice *dev;
+ u8 *ptr, val;
+ int i;
+
+ ut_assertok(uclass_first_device_err(UCLASS_TEST, &dev));
+
+ ptr = devm_kzalloc(dev, TEST_DEVRES_SIZE, 0);
+ ut_assert(ptr != NULL);
+ for (val = 0, i = 0; i < TEST_DEVRES_SIZE; i++)
+ val |= *ptr;
+ ut_asserteq(0, val);
+
+ return 0;
+}
+DM_TEST(dm_test_devres_kzalloc, UT_TESTF_SCAN_PDATA);
+
+/* Test that devm_kmalloc_array() allocates an array that can be set */
+static int dm_test_devres_kmalloc_array(struct unit_test_state *uts)
+{
+ ulong mem_start, mem_dev;
+ struct udevice *dev;
+ u8 *ptr;
+
+ mem_start = ut_check_delta(0);
+ ut_assertok(uclass_first_device_err(UCLASS_TEST, &dev));
+ mem_dev = ut_check_delta(mem_start);
+
+ ptr = devm_kmalloc_array(dev, TEST_DEVRES_COUNT, TEST_DEVRES_SIZE, 0);
+ ut_assert(ptr != NULL);
+ memset(ptr, '\xff', TEST_DEVRES_TOTAL);
+ ut_assert(ut_check_delta(mem_dev) > 0);
+
+ device_remove(dev, DM_REMOVE_NORMAL);
+ ut_asserteq(0, ut_check_delta(mem_start));
+
+ return 0;
+}
+DM_TEST(dm_test_devres_kmalloc_array, UT_TESTF_SCAN_PDATA);
+
+/* Test that devm_kcalloc() allocates a zeroed array */
+static int dm_test_devres_kcalloc(struct unit_test_state *uts)
+{
+ ulong mem_start, mem_dev;
+ struct udevice *dev;
+ u8 *ptr, val;
+ int i;
+
+ mem_start = ut_check_delta(0);
+ ut_assertok(uclass_first_device_err(UCLASS_TEST, &dev));
+ mem_dev = ut_check_delta(mem_start);
+ ut_assert(mem_dev > 0);
+
+ /* This should increase allocated memory */
+ ptr = devm_kcalloc(dev, TEST_DEVRES_SIZE, TEST_DEVRES_COUNT, 0);
+ ut_assert(ptr != NULL);
+ ut_assert(ut_check_delta(mem_dev) > 0);
+ for (val = 0, i = 0; i < TEST_DEVRES_TOTAL; i++)
+ val |= *ptr;
+ ut_asserteq(0, val);
+
+ /* Check that ptr is freed */
+ device_remove(dev, DM_REMOVE_NORMAL);
+ ut_asserteq(0, ut_check_delta(mem_start));
+
+ return 0;
+}
+DM_TEST(dm_test_devres_kcalloc, UT_TESTF_SCAN_PDATA);
+
+/* Test devres releases resources automatically as expected */
+static int dm_test_devres_phase(struct unit_test_state *uts)
+{
+ struct devres_stats stats;
+ struct udevice *dev;
+
+ /*
+ * The device is bound already, so find it and check that it has the
+ * allocation created in the bind() method.
+ */
+ ut_assertok(uclass_find_first_device(UCLASS_TEST_DEVRES, &dev));
+ ut_assertnonnull(dev);
+ devres_get_stats(dev, &stats);
+ ut_asserteq(1, stats.allocs);
+ ut_asserteq(TEST_DEVRES_SIZE, stats.total_size);
+
+ /* Getting plat should add one allocation */
+ ut_assertok(device_of_to_plat(dev));
+ devres_get_stats(dev, &stats);
+ ut_asserteq(2, stats.allocs);
+ ut_asserteq(TEST_DEVRES_SIZE + TEST_DEVRES_SIZE3, stats.total_size);
+
+ /* Probing the device should add one allocation */
+ ut_assertok(uclass_first_device(UCLASS_TEST_DEVRES, &dev));
+ ut_assert(dev != NULL);
+ devres_get_stats(dev, &stats);
+ ut_asserteq(3, stats.allocs);
+ ut_asserteq(TEST_DEVRES_SIZE + TEST_DEVRES_SIZE2 + TEST_DEVRES_SIZE3,
+ stats.total_size);
+
+ /* Removing the device should drop both those allocations */
+ device_remove(dev, DM_REMOVE_NORMAL);
+ devres_get_stats(dev, &stats);
+ ut_asserteq(1, stats.allocs);
+ ut_asserteq(TEST_DEVRES_SIZE, stats.total_size);
+
+ /* Unbinding removes the other. Note this access a freed pointer */
+ device_unbind(dev);
+ devres_get_stats(dev, &stats);
+ ut_asserteq(0, stats.allocs);
+ ut_asserteq(0, stats.total_size);
+
+ return 0;
+}
+DM_TEST(dm_test_devres_phase, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
--
cgit