--- /dev/null
+/*
+ * Tests for the core driver model code
+ *
+ * Copyright (c) 2013 Google, Inc
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <errno.h>
+#include <dm.h>
+#include <fdtdec.h>
+#include <malloc.h>
+#include <dm/device-internal.h>
+#include <dm/root.h>
+#include <dm/ut.h>
+#include <dm/util.h>
+#include <dm/test.h>
+#include <dm/uclass-internal.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+enum {
+ TEST_INTVAL1 = 0,
+ TEST_INTVAL2 = 3,
+ TEST_INTVAL3 = 6,
+ TEST_INTVAL_MANUAL = 101112,
+};
+
+static const struct dm_test_pdata test_pdata[] = {
+ { .ping_add = TEST_INTVAL1, },
+ { .ping_add = TEST_INTVAL2, },
+ { .ping_add = TEST_INTVAL3, },
+};
+
+static const struct dm_test_pdata test_pdata_manual = {
+ .ping_add = TEST_INTVAL_MANUAL,
+};
+
+U_BOOT_DEVICE(dm_test_info1) = {
+ .name = "test_drv",
+ .platdata = &test_pdata[0],
+};
+
+U_BOOT_DEVICE(dm_test_info2) = {
+ .name = "test_drv",
+ .platdata = &test_pdata[1],
+};
+
+U_BOOT_DEVICE(dm_test_info3) = {
+ .name = "test_drv",
+ .platdata = &test_pdata[2],
+};
+
+static struct driver_info driver_info_manual = {
+ .name = "test_manual_drv",
+ .platdata = &test_pdata_manual,
+};
+
+/* Test that binding with platdata occurs correctly */
+static int dm_test_autobind(struct dm_test_state *dms)
+{
+ struct device *dev;
+
+ /*
+ * We should have a single class (UCLASS_ROOT) and a single root
+ * device with no children.
+ */
+ ut_assert(dms->root);
+ ut_asserteq(1, list_count_items(&gd->uclass_root));
+ ut_asserteq(0, list_count_items(&gd->dm_root->child_head));
+ ut_asserteq(0, dm_testdrv_op_count[DM_TEST_OP_POST_BIND]);
+
+ ut_assertok(dm_scan_platdata());
+
+ /* We should have our test class now at least, plus more children */
+ ut_assert(1 < list_count_items(&gd->uclass_root));
+ ut_assert(0 < list_count_items(&gd->dm_root->child_head));
+
+ /* Our 3 dm_test_infox children should be bound to the test uclass */
+ ut_asserteq(3, dm_testdrv_op_count[DM_TEST_OP_POST_BIND]);
+
+ /* No devices should be probed */
+ list_for_each_entry(dev, &gd->dm_root->child_head, sibling_node)
+ ut_assert(!(dev->flags & DM_FLAG_ACTIVATED));
+
+ /* Our test driver should have been bound 3 times */
+ ut_assert(dm_testdrv_op_count[DM_TEST_OP_BIND] == 3);
+
+ return 0;
+}
+DM_TEST(dm_test_autobind, 0);
+
+/* Test that autoprobe finds all the expected devices */
+static int dm_test_autoprobe(struct dm_test_state *dms)
+{
+ int expected_base_add;
+ struct device *dev;
+ struct uclass *uc;
+ int i;
+
+ ut_assertok(uclass_get(UCLASS_TEST, &uc));
+ ut_assert(uc);
+
+ ut_asserteq(1, dm_testdrv_op_count[DM_TEST_OP_INIT]);
+ ut_asserteq(0, dm_testdrv_op_count[DM_TEST_OP_POST_PROBE]);
+
+ /* The root device should not be activated until needed */
+ ut_assert(!(dms->root->flags & DM_FLAG_ACTIVATED));
+
+ /*
+ * We should be able to find the three test devices, and they should
+ * all be activated as they are used (lazy activation, required by
+ * U-Boot)
+ */
+ for (i = 0; i < 3; i++) {
+ ut_assertok(uclass_find_device(UCLASS_TEST, i, &dev));
+ ut_assert(dev);
+ ut_assertf(!(dev->flags & DM_FLAG_ACTIVATED),
+ "Driver %d/%s already activated", i, dev->name);
+
+ /* This should activate it */
+ ut_assertok(uclass_get_device(UCLASS_TEST, i, &dev));
+ ut_assert(dev);
+ ut_assert(dev->flags & DM_FLAG_ACTIVATED);
+
+ /* Activating a device should activate the root device */
+ if (!i)
+ ut_assert(dms->root->flags & DM_FLAG_ACTIVATED);
+ }
+
+ /* Our 3 dm_test_infox children should be passed to post_probe */
+ ut_asserteq(3, dm_testdrv_op_count[DM_TEST_OP_POST_PROBE]);
+
+ /* Also we can check the per-device data */
+ expected_base_add = 0;
+ for (i = 0; i < 3; i++) {
+ struct dm_test_uclass_perdev_priv *priv;
+ struct dm_test_pdata *pdata;
+
+ ut_assertok(uclass_find_device(UCLASS_TEST, i, &dev));
+ ut_assert(dev);
+
+ priv = dev->uclass_priv;
+ ut_assert(priv);
+ ut_asserteq(expected_base_add, priv->base_add);
+
+ pdata = dev->platdata;
+ expected_base_add += pdata->ping_add;
+ }
+
+ return 0;
+}
+DM_TEST(dm_test_autoprobe, DM_TESTF_SCAN_PDATA);
+
+/* Check that we see the correct platdata in each device */
+static int dm_test_platdata(struct dm_test_state *dms)
+{
+ const struct dm_test_pdata *pdata;
+ struct device *dev;
+ int i;
+
+ for (i = 0; i < 3; i++) {
+ ut_assertok(uclass_find_device(UCLASS_TEST, i, &dev));
+ ut_assert(dev);
+ pdata = dev->platdata;
+ ut_assert(pdata->ping_add == test_pdata[i].ping_add);
+ }
+
+ return 0;
+}
+DM_TEST(dm_test_platdata, DM_TESTF_SCAN_PDATA);
+
+/* Test that we can bind, probe, remove, unbind a driver */
+static int dm_test_lifecycle(struct dm_test_state *dms)
+{
+ int op_count[DM_TEST_OP_COUNT];
+ struct device *dev, *test_dev;
+ int pingret;
+ int ret;
+
+ memcpy(op_count, dm_testdrv_op_count, sizeof(op_count));
+
+ ut_assertok(device_bind_by_name(dms->root, &driver_info_manual,
+ &dev));
+ ut_assert(dev);
+ ut_assert(dm_testdrv_op_count[DM_TEST_OP_BIND]
+ == op_count[DM_TEST_OP_BIND] + 1);
+ ut_assert(!dev->priv);
+
+ /* Probe the device - it should fail allocating private data */
+ dms->force_fail_alloc = 1;
+ ret = device_probe(dev);
+ ut_assert(ret == -ENOMEM);
+ ut_assert(dm_testdrv_op_count[DM_TEST_OP_PROBE]
+ == op_count[DM_TEST_OP_PROBE] + 1);
+ ut_assert(!dev->priv);
+
+ /* Try again without the alloc failure */
+ dms->force_fail_alloc = 0;
+ ut_assertok(device_probe(dev));
+ ut_assert(dm_testdrv_op_count[DM_TEST_OP_PROBE]
+ == op_count[DM_TEST_OP_PROBE] + 2);
+ ut_assert(dev->priv);
+
+ /* This should be device 3 in the uclass */
+ ut_assertok(uclass_find_device(UCLASS_TEST, 3, &test_dev));
+ ut_assert(dev == test_dev);
+
+ /* Try ping */
+ ut_assertok(test_ping(dev, 100, &pingret));
+ ut_assert(pingret == 102);
+
+ /* Now remove device 3 */
+ ut_asserteq(0, dm_testdrv_op_count[DM_TEST_OP_PRE_REMOVE]);
+ ut_assertok(device_remove(dev));
+ ut_asserteq(1, dm_testdrv_op_count[DM_TEST_OP_PRE_REMOVE]);
+
+ ut_asserteq(0, dm_testdrv_op_count[DM_TEST_OP_UNBIND]);
+ ut_asserteq(0, dm_testdrv_op_count[DM_TEST_OP_PRE_UNBIND]);
+ ut_assertok(device_unbind(dev));
+ ut_asserteq(1, dm_testdrv_op_count[DM_TEST_OP_UNBIND]);
+ ut_asserteq(1, dm_testdrv_op_count[DM_TEST_OP_PRE_UNBIND]);
+
+ return 0;
+}
+DM_TEST(dm_test_lifecycle, DM_TESTF_SCAN_PDATA | DM_TESTF_PROBE_TEST);
+
+/* Test that we can bind/unbind and the lists update correctly */
+static int dm_test_ordering(struct dm_test_state *dms)
+{
+ struct device *dev, *dev_penultimate, *dev_last, *test_dev;
+ int pingret;
+
+ ut_assertok(device_bind_by_name(dms->root, &driver_info_manual,
+ &dev));
+ ut_assert(dev);
+
+ /* Bind two new devices (numbers 4 and 5) */
+ ut_assertok(device_bind_by_name(dms->root, &driver_info_manual,
+ &dev_penultimate));
+ ut_assert(dev_penultimate);
+ ut_assertok(device_bind_by_name(dms->root, &driver_info_manual,
+ &dev_last));
+ ut_assert(dev_last);
+
+ /* Now remove device 3 */
+ ut_assertok(device_remove(dev));
+ ut_assertok(device_unbind(dev));
+
+ /* The device numbering should have shifted down one */
+ ut_assertok(uclass_find_device(UCLASS_TEST, 3, &test_dev));
+ ut_assert(dev_penultimate == test_dev);
+ ut_assertok(uclass_find_device(UCLASS_TEST, 4, &test_dev));
+ ut_assert(dev_last == test_dev);
+
+ /* Add back the original device 3, now in position 5 */
+ ut_assertok(device_bind_by_name(dms->root, &driver_info_manual, &dev));
+ ut_assert(dev);
+
+ /* Try ping */
+ ut_assertok(test_ping(dev, 100, &pingret));
+ ut_assert(pingret == 102);
+
+ /* Remove 3 and 4 */
+ ut_assertok(device_remove(dev_penultimate));
+ ut_assertok(device_unbind(dev_penultimate));
+ ut_assertok(device_remove(dev_last));
+ ut_assertok(device_unbind(dev_last));
+
+ /* Our device should now be in position 3 */
+ ut_assertok(uclass_find_device(UCLASS_TEST, 3, &test_dev));
+ ut_assert(dev == test_dev);
+
+ /* Now remove device 3 */
+ ut_assertok(device_remove(dev));
+ ut_assertok(device_unbind(dev));
+
+ return 0;
+}
+DM_TEST(dm_test_ordering, DM_TESTF_SCAN_PDATA);
+
+/* Check that we can perform operations on a device (do a ping) */
+int dm_check_operations(struct dm_test_state *dms, struct device *dev,
+ uint32_t base, struct dm_test_priv *priv)
+{
+ int expected;
+ int pingret;
+
+ /* Getting the child device should allocate platdata / priv */
+ ut_assertok(testfdt_ping(dev, 10, &pingret));
+ ut_assert(dev->priv);
+ ut_assert(dev->platdata);
+
+ expected = 10 + base;
+ ut_asserteq(expected, pingret);
+
+ /* Do another ping */
+ ut_assertok(testfdt_ping(dev, 20, &pingret));
+ expected = 20 + base;
+ ut_asserteq(expected, pingret);
+
+ /* Now check the ping_total */
+ priv = dev->priv;
+ ut_asserteq(DM_TEST_START_TOTAL + 10 + 20 + base * 2,
+ priv->ping_total);
+
+ return 0;
+}
+
+/* Check that we can perform operations on devices */
+static int dm_test_operations(struct dm_test_state *dms)
+{
+ struct device *dev;
+ int i;
+
+ /*
+ * Now check that the ping adds are what we expect. This is using the
+ * ping-add property in each node.
+ */
+ for (i = 0; i < ARRAY_SIZE(test_pdata); i++) {
+ uint32_t base;
+
+ ut_assertok(uclass_get_device(UCLASS_TEST, i, &dev));
+
+ /*
+ * Get the 'reg' property, which tells us what the ping add
+ * should be. We don't use the platdata because we want
+ * to test the code that sets that up (testfdt_drv_probe()).
+ */
+ base = test_pdata[i].ping_add;
+ debug("dev=%d, base=%d\n", i, base);
+
+ ut_assert(!dm_check_operations(dms, dev, base, dev->priv));
+ }
+
+ return 0;
+}
+DM_TEST(dm_test_operations, DM_TESTF_SCAN_PDATA);
+
+/* Remove all drivers and check that things work */
+static int dm_test_remove(struct dm_test_state *dms)
+{
+ struct device *dev;
+ int i;
+
+ for (i = 0; i < 3; i++) {
+ ut_assertok(uclass_find_device(UCLASS_TEST, i, &dev));
+ ut_assert(dev);
+ ut_assertf(dev->flags & DM_FLAG_ACTIVATED,
+ "Driver %d/%s not activated", i, dev->name);
+ ut_assertok(device_remove(dev));
+ ut_assertf(!(dev->flags & DM_FLAG_ACTIVATED),
+ "Driver %d/%s should have deactivated", i,
+ dev->name);
+ ut_assert(!dev->priv);
+ }
+
+ return 0;
+}
+DM_TEST(dm_test_remove, DM_TESTF_SCAN_PDATA | DM_TESTF_PROBE_TEST);
+
+/* Remove and recreate everything, check for memory leaks */
+static int dm_test_leak(struct dm_test_state *dms)
+{
+ int i;
+
+ for (i = 0; i < 2; i++) {
+ struct mallinfo start, end;
+ struct device *dev;
+ int ret;
+ int id;
+
+ start = mallinfo();
+ if (!start.uordblks)
+ puts("Warning: Please add '#define DEBUG' to the top of common/dlmalloc.c\n");
+
+ ut_assertok(dm_scan_platdata());
+ ut_assertok(dm_scan_fdt(gd->fdt_blob));
+
+ /* Scanning the uclass is enough to probe all the devices */
+ for (id = UCLASS_ROOT; id < UCLASS_COUNT; id++) {
+ for (ret = uclass_first_device(UCLASS_TEST, &dev);
+ dev;
+ ret = uclass_next_device(&dev))
+ ;
+ ut_assertok(ret);
+ }
+
+ /* Don't delete the root class, since we started with that */
+ for (id = UCLASS_ROOT + 1; id < UCLASS_COUNT; id++) {
+ struct uclass *uc;
+
+ uc = uclass_find(id);
+ if (!uc)
+ continue;
+ ut_assertok(uclass_destroy(uc));
+ }
+
+ end = mallinfo();
+ ut_asserteq(start.uordblks, end.uordblks);
+ }
+
+ return 0;
+}
+DM_TEST(dm_test_leak, 0);
+
+/* Test uclass init/destroy methods */
+static int dm_test_uclass(struct dm_test_state *dms)
+{
+ struct uclass *uc;
+
+ ut_assertok(uclass_get(UCLASS_TEST, &uc));
+ ut_asserteq(1, dm_testdrv_op_count[DM_TEST_OP_INIT]);
+ ut_asserteq(0, dm_testdrv_op_count[DM_TEST_OP_DESTROY]);
+ ut_assert(uc->priv);
+
+ ut_assertok(uclass_destroy(uc));
+ ut_asserteq(1, dm_testdrv_op_count[DM_TEST_OP_INIT]);
+ ut_asserteq(1, dm_testdrv_op_count[DM_TEST_OP_DESTROY]);
+
+ return 0;
+}
+DM_TEST(dm_test_uclass, 0);
+
+/**
+ * create_children() - Create children of a parent node
+ *
+ * @dms: Test system state
+ * @parent: Parent device
+ * @count: Number of children to create
+ * @key: Key value to put in first child. Subsequence children
+ * receive an incrementing value
+ * @child: If not NULL, then the child device pointers are written into
+ * this array.
+ * @return 0 if OK, -ve on error
+ */
+static int create_children(struct dm_test_state *dms, struct device *parent,
+ int count, int key, struct device *child[])
+{
+ struct device *dev;
+ int i;
+
+ for (i = 0; i < count; i++) {
+ struct dm_test_pdata *pdata;
+
+ ut_assertok(device_bind_by_name(parent, &driver_info_manual,
+ &dev));
+ pdata = calloc(1, sizeof(*pdata));
+ pdata->ping_add = key + i;
+ dev->platdata = pdata;
+ if (child)
+ child[i] = dev;
+ }
+
+ return 0;
+}
+
+#define NODE_COUNT 10
+
+static int dm_test_children(struct dm_test_state *dms)
+{
+ struct device *top[NODE_COUNT];
+ struct device *child[NODE_COUNT];
+ struct device *grandchild[NODE_COUNT];
+ struct device *dev;
+ int total;
+ int ret;
+ int i;
+
+ /* We don't care about the numbering for this test */
+ dms->skip_post_probe = 1;
+
+ ut_assert(NODE_COUNT > 5);
+
+ /* First create 10 top-level children */
+ ut_assertok(create_children(dms, dms->root, NODE_COUNT, 0, top));
+
+ /* Now a few have their own children */
+ ut_assertok(create_children(dms, top[2], NODE_COUNT, 2, NULL));
+ ut_assertok(create_children(dms, top[5], NODE_COUNT, 5, child));
+
+ /* And grandchildren */
+ for (i = 0; i < NODE_COUNT; i++)
+ ut_assertok(create_children(dms, child[i], NODE_COUNT, 50 * i,
+ i == 2 ? grandchild : NULL));
+
+ /* Check total number of devices */
+ total = NODE_COUNT * (3 + NODE_COUNT);
+ ut_asserteq(total, dm_testdrv_op_count[DM_TEST_OP_BIND]);
+
+ /* Try probing one of the grandchildren */
+ ut_assertok(uclass_get_device(UCLASS_TEST,
+ NODE_COUNT * 3 + 2 * NODE_COUNT, &dev));
+ ut_asserteq_ptr(grandchild[0], dev);
+
+ /*
+ * This should have probed the child and top node also, for a total
+ * of 3 nodes.
+ */
+ ut_asserteq(3, dm_testdrv_op_count[DM_TEST_OP_PROBE]);
+
+ /* Probe the other grandchildren */
+ for (i = 1; i < NODE_COUNT; i++)
+ ut_assertok(device_probe(grandchild[i]));
+
+ ut_asserteq(2 + NODE_COUNT, dm_testdrv_op_count[DM_TEST_OP_PROBE]);
+
+ /* Probe everything */
+ for (ret = uclass_first_device(UCLASS_TEST, &dev);
+ dev;
+ ret = uclass_next_device(&dev))
+ ;
+ ut_assertok(ret);
+
+ ut_asserteq(total, dm_testdrv_op_count[DM_TEST_OP_PROBE]);
+
+ /* Remove a top-level child and check that the children are removed */
+ ut_assertok(device_remove(top[2]));
+ ut_asserteq(NODE_COUNT + 1, dm_testdrv_op_count[DM_TEST_OP_REMOVE]);
+ dm_testdrv_op_count[DM_TEST_OP_REMOVE] = 0;
+
+ /* Try one with grandchildren */
+ ut_assertok(uclass_get_device(UCLASS_TEST, 5, &dev));
+ ut_asserteq_ptr(dev, top[5]);
+ ut_assertok(device_remove(dev));
+ ut_asserteq(1 + NODE_COUNT * (1 + NODE_COUNT),
+ dm_testdrv_op_count[DM_TEST_OP_REMOVE]);
+
+ /* Try the same with unbind */
+ ut_assertok(device_unbind(top[2]));
+ ut_asserteq(NODE_COUNT + 1, dm_testdrv_op_count[DM_TEST_OP_UNBIND]);
+ dm_testdrv_op_count[DM_TEST_OP_UNBIND] = 0;
+
+ /* Try one with grandchildren */
+ ut_assertok(uclass_get_device(UCLASS_TEST, 5, &dev));
+ ut_asserteq_ptr(dev, top[6]);
+ ut_assertok(device_unbind(top[5]));
+ ut_asserteq(1 + NODE_COUNT * (1 + NODE_COUNT),
+ dm_testdrv_op_count[DM_TEST_OP_UNBIND]);
+
+ return 0;
+}
+DM_TEST(dm_test_children, 0);
Code Review / kvmfornfv.git / blobdiff