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u-boot/test/dm/bus.c
Simon Glass 401d1c4f5d common: Drop asm/global_data.h from common header 
Move this out of the common header and include it only where needed.  In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly.   Finally, we have a few
cases where we did not need to include <asm/global_data.h> at all, so
remove that include.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
2021-02-02 15:33:42 -05:00

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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2014 Google, Inc
*/
#include <common.h>
#ifdef CONFIG_SANDBOX
#include <log.h>
#include <os.h>
#endif
#include <dm.h>
#include <asm/global_data.h>
#include <dm/device.h>
#include <dm/device-internal.h>
#include <dm/test.h>
#include <dm/uclass-internal.h>
#include <dm/util.h>
#include <test/test.h>
#include <test/ut.h>
DECLARE_GLOBAL_DATA_PTR;
/* Test that we can probe for children */
static int dm_test_bus_children(struct unit_test_state *uts)
{
int num_devices = 9;
struct udevice *bus;
struct uclass *uc;
ut_assertok(uclass_get(UCLASS_TEST_FDT, &uc));
ut_asserteq(num_devices, list_count_items(&uc->dev_head));
/* Probe the bus, which should yield 3 more devices */
ut_assertok(uclass_get_device(UCLASS_TEST_BUS, 0, &bus));
num_devices += 3;
ut_assertok(uclass_get(UCLASS_TEST_FDT, &uc));
ut_asserteq(num_devices, list_count_items(&uc->dev_head));
ut_assert(!dm_check_devices(uts, num_devices));
return 0;
}
DM_TEST(dm_test_bus_children, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
/* Test our functions for accessing children */
static int dm_test_bus_children_funcs(struct unit_test_state *uts)
{
const void *blob = gd->fdt_blob;
struct udevice *bus, *dev;
int node;
ut_assertok(uclass_get_device(UCLASS_TEST_BUS, 0, &bus));
/* device_get_child() */
ut_assertok(device_get_child(bus, 0, &dev));
ut_asserteq(-ENODEV, device_get_child(bus, 4, &dev));
ut_assertok(device_get_child_by_seq(bus, 5, &dev));
ut_assert(dev_get_flags(dev) & DM_FLAG_ACTIVATED);
ut_asserteq_str("c-test@5", dev->name);
/* Device with sequence number 0 should be accessible */
ut_asserteq(-ENODEV, device_find_child_by_seq(bus, -1, &dev));
ut_assertok(device_find_child_by_seq(bus, 0, &dev));
ut_assert(!(dev_get_flags(dev) & DM_FLAG_ACTIVATED));
ut_asserteq(0, device_find_child_by_seq(bus, 0, &dev));
ut_assertok(device_get_child_by_seq(bus, 0, &dev));
ut_assert(dev_get_flags(dev) & DM_FLAG_ACTIVATED);
ut_asserteq(0, device_find_child_by_seq(bus, 0, &dev));
/* There is no device with sequence number 2 */
ut_asserteq(-ENODEV, device_find_child_by_seq(bus, 2, &dev));
ut_asserteq(-ENODEV, device_find_child_by_seq(bus, 2, &dev));
ut_asserteq(-ENODEV, device_get_child_by_seq(bus, 2, &dev));
/* Looking for something that is not a child */
node = fdt_path_offset(blob, "/junk");
ut_asserteq(-ENODEV, device_find_child_by_of_offset(bus, node, &dev));
node = fdt_path_offset(blob, "/d-test");
ut_asserteq(-ENODEV, device_find_child_by_of_offset(bus, node, &dev));
return 0;
}
DM_TEST(dm_test_bus_children_funcs, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
static int dm_test_bus_children_of_offset(struct unit_test_state *uts)
{
const void *blob = gd->fdt_blob;
struct udevice *bus, *dev;
int node;
ut_assertok(uclass_get_device(UCLASS_TEST_BUS, 0, &bus));
ut_assertnonnull(bus);
/* Find a valid child */
node = fdt_path_offset(blob, "/some-bus/c-test@1");
ut_assert(node > 0);
ut_assertok(device_find_child_by_of_offset(bus, node, &dev));
ut_assertnonnull(dev);
ut_assert(!(dev_get_flags(dev) & DM_FLAG_ACTIVATED));
ut_assertok(device_get_child_by_of_offset(bus, node, &dev));
ut_assertnonnull(dev);
ut_assert(dev_get_flags(dev) & DM_FLAG_ACTIVATED);
return 0;
}
DM_TEST(dm_test_bus_children_of_offset,
UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT | UT_TESTF_FLAT_TREE);
/* Test that we can iterate through children */
static int dm_test_bus_children_iterators(struct unit_test_state *uts)
{
struct udevice *bus, *dev, *child;
/* Walk through the children one by one */
ut_assertok(uclass_get_device(UCLASS_TEST_BUS, 0, &bus));
ut_assertok(device_find_first_child(bus, &dev));
ut_asserteq_str("c-test@5", dev->name);
ut_assertok(device_find_next_child(&dev));
ut_asserteq_str("c-test@0", dev->name);
ut_assertok(device_find_next_child(&dev));
ut_asserteq_str("c-test@1", dev->name);
ut_assertok(device_find_next_child(&dev));
ut_asserteq_ptr(dev, NULL);
/* Move to the next child without using device_find_first_child() */
ut_assertok(device_find_child_by_seq(bus, 5, &dev));
ut_asserteq_str("c-test@5", dev->name);
ut_assertok(device_find_next_child(&dev));
ut_asserteq_str("c-test@0", dev->name);
/* Try a device with no children */
ut_assertok(device_find_first_child(dev, &child));
ut_asserteq_ptr(child, NULL);
return 0;
}
DM_TEST(dm_test_bus_children_iterators,
UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
/* Test that the bus can store data about each child */
static int test_bus_parent_data(struct unit_test_state *uts)
{
struct dm_test_parent_data *parent_data;
struct udevice *bus, *dev;
struct uclass *uc;
int value;
ut_assertok(uclass_get_device(UCLASS_TEST_BUS, 0, &bus));
/* Check that parent data is allocated */
ut_assertok(device_find_child_by_seq(bus, 0, &dev));
ut_asserteq_ptr(NULL, dev_get_parent_priv(dev));
ut_assertok(device_get_child_by_seq(bus, 0, &dev));
parent_data = dev_get_parent_priv(dev);
ut_assert(NULL != parent_data);
/* Check that it starts at 0 and goes away when device is removed */
parent_data->sum += 5;
ut_asserteq(5, parent_data->sum);
device_remove(dev, DM_REMOVE_NORMAL);
ut_asserteq_ptr(NULL, dev_get_parent_priv(dev));
/* Check that we can do this twice */
ut_assertok(device_get_child_by_seq(bus, 0, &dev));
parent_data = dev_get_parent_priv(dev);
ut_assert(NULL != parent_data);
parent_data->sum += 5;
ut_asserteq(5, parent_data->sum);
/* Add parent data to all children */
ut_assertok(uclass_get(UCLASS_TEST_FDT, &uc));
value = 5;
uclass_foreach_dev(dev, uc) {
/* Ignore these if they are not on this bus */
if (dev->parent != bus) {
ut_asserteq_ptr(NULL, dev_get_parent_priv(dev));
continue;
}
ut_assertok(device_probe(dev));
parent_data = dev_get_parent_priv(dev);
parent_data->sum = value;
value += 5;
}
/* Check it is still there */
value = 5;
uclass_foreach_dev(dev, uc) {
/* Ignore these if they are not on this bus */
if (dev->parent != bus)
continue;
parent_data = dev_get_parent_priv(dev);
ut_asserteq(value, parent_data->sum);
value += 5;
}
return 0;
}
/* Test that the bus can store data about each child */
static int dm_test_bus_parent_data(struct unit_test_state *uts)
{
return test_bus_parent_data(uts);
}
DM_TEST(dm_test_bus_parent_data, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
/* As above but the size is controlled by the uclass */
static int dm_test_bus_parent_data_uclass(struct unit_test_state *uts)
{
struct driver *drv;
struct udevice *bus;
int size;
int ret;
/* Set the driver size to 0 so that the uclass size is used */
ut_assertok(uclass_find_device(UCLASS_TEST_BUS, 0, &bus));
drv = (struct driver *)bus->driver;
size = drv->per_child_auto;
#ifdef CONFIG_SANDBOX
os_mprotect_allow(bus->uclass->uc_drv, sizeof(*bus->uclass->uc_drv));
os_mprotect_allow(drv, sizeof(*drv));
#endif
bus->uclass->uc_drv->per_child_auto = size;
drv->per_child_auto = 0;
ret = test_bus_parent_data(uts);
if (ret)
return ret;
bus->uclass->uc_drv->per_child_auto = 0;
drv->per_child_auto = size;
return 0;
}
DM_TEST(dm_test_bus_parent_data_uclass,
UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
/* Test that the bus ops are called when a child is probed/removed */
static int dm_test_bus_parent_ops(struct unit_test_state *uts)
{
struct dm_test_parent_data *parent_data;
struct udevice *bus, *dev;
struct uclass *uc;
testbus_get_clear_removed();
ut_assertok(uclass_get_device(UCLASS_TEST_BUS, 0, &bus));
ut_assertok(uclass_get(UCLASS_TEST_FDT, &uc));
uclass_foreach_dev(dev, uc) {
/* Ignore these if they are not on this bus */
if (dev->parent != bus)
continue;
ut_asserteq_ptr(NULL, dev_get_parent_priv(dev));
ut_assertok(device_probe(dev));
parent_data = dev_get_parent_priv(dev);
ut_asserteq(TEST_FLAG_CHILD_PROBED, parent_data->flag);
}
uclass_foreach_dev(dev, uc) {
/* Ignore these if they are not on this bus */
if (dev->parent != bus)
continue;
parent_data = dev_get_parent_priv(dev);
ut_asserteq(TEST_FLAG_CHILD_PROBED, parent_data->flag);
ut_assertok(device_remove(dev, DM_REMOVE_NORMAL));
ut_asserteq_ptr(NULL, dev_get_parent_priv(dev));
ut_asserteq_ptr(testbus_get_clear_removed(), dev);
}
return 0;
}
DM_TEST(dm_test_bus_parent_ops, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
static int test_bus_parent_plat(struct unit_test_state *uts)
{
struct dm_test_parent_plat *plat;
struct udevice *bus, *dev;
/* Check that the bus has no children */
ut_assertok(uclass_find_device(UCLASS_TEST_BUS, 0, &bus));
device_find_first_child(bus, &dev);
ut_asserteq_ptr(NULL, dev);
ut_assertok(uclass_get_device(UCLASS_TEST_BUS, 0, &bus));
for (device_find_first_child(bus, &dev);
dev;
device_find_next_child(&dev)) {
/* Check that platform data is allocated */
plat = dev_get_parent_plat(dev);
ut_assert(plat != NULL);
/*
* Check that it is not affected by the device being
* probed/removed
*/
plat->count++;
ut_asserteq(1, plat->count);
device_probe(dev);
device_remove(dev, DM_REMOVE_NORMAL);
ut_asserteq_ptr(plat, dev_get_parent_plat(dev));
ut_asserteq(1, plat->count);
ut_assertok(device_probe(dev));
}
ut_asserteq(3, device_get_child_count(bus));
/* Removing the bus should also have no effect (it is still bound) */
device_remove(bus, DM_REMOVE_NORMAL);
for (device_find_first_child(bus, &dev);
dev;
device_find_next_child(&dev)) {
/* Check that platform data is allocated */
plat = dev_get_parent_plat(dev);
ut_assert(plat != NULL);
ut_asserteq(1, plat->count);
}
ut_asserteq(3, device_get_child_count(bus));
/* Unbind all the children */
do {
device_find_first_child(bus, &dev);
if (dev)
device_unbind(dev);
} while (dev);
/* Now the child plat should be removed and re-added */
device_probe(bus);
for (device_find_first_child(bus, &dev);
dev;
device_find_next_child(&dev)) {
/* Check that platform data is allocated */
plat = dev_get_parent_plat(dev);
ut_assert(plat != NULL);
ut_asserteq(0, plat->count);
}
ut_asserteq(3, device_get_child_count(bus));
return 0;
}
/* Test that the bus can store platform data about each child */
static int dm_test_bus_parent_plat(struct unit_test_state *uts)
{
return test_bus_parent_plat(uts);
}
DM_TEST(dm_test_bus_parent_plat, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
/* As above but the size is controlled by the uclass */
static int dm_test_bus_parent_plat_uclass(struct unit_test_state *uts)
{
struct udevice *bus;
struct driver *drv;
int size;
int ret;
/* Set the driver size to 0 so that the uclass size is used */
ut_assertok(uclass_find_device(UCLASS_TEST_BUS, 0, &bus));
drv = (struct driver *)bus->driver;
size = drv->per_child_plat_auto;
#ifdef CONFIG_SANDBOX
os_mprotect_allow(bus->uclass->uc_drv, sizeof(*bus->uclass->uc_drv));
os_mprotect_allow(drv, sizeof(*drv));
#endif
bus->uclass->uc_drv->per_child_plat_auto = size;
drv->per_child_plat_auto = 0;
ret = test_bus_parent_plat(uts);
if (ret)
return ret;
bus->uclass->uc_drv->per_child_plat_auto = 0;
drv->per_child_plat_auto = size;
return 0;
}
DM_TEST(dm_test_bus_parent_plat_uclass,
UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
/* Test that the child post_bind method is called */
static int dm_test_bus_child_post_bind(struct unit_test_state *uts)
{
struct dm_test_parent_plat *plat;
struct udevice *bus, *dev;
ut_assertok(uclass_get_device(UCLASS_TEST_BUS, 0, &bus));
for (device_find_first_child(bus, &dev);
dev;
device_find_next_child(&dev)) {
/* Check that platform data is allocated */
plat = dev_get_parent_plat(dev);
ut_assert(plat != NULL);
ut_asserteq(1, plat->bind_flag);
}
ut_asserteq(3, device_get_child_count(bus));
return 0;
}
DM_TEST(dm_test_bus_child_post_bind, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
/* Test that the child post_bind method is called */
static int dm_test_bus_child_post_bind_uclass(struct unit_test_state *uts)
{
struct dm_test_parent_plat *plat;
struct udevice *bus, *dev;
ut_assertok(uclass_get_device(UCLASS_TEST_BUS, 0, &bus));
for (device_find_first_child(bus, &dev);
dev;
device_find_next_child(&dev)) {
/* Check that platform data is allocated */
plat = dev_get_parent_plat(dev);
ut_assert(plat != NULL);
ut_asserteq(2, plat->uclass_bind_flag);
}
ut_asserteq(3, device_get_child_count(bus));
return 0;
}
DM_TEST(dm_test_bus_child_post_bind_uclass,
UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
/*
* Test that the bus' uclass' child_pre_probe() is called before the
* device's probe() method
*/
static int dm_test_bus_child_pre_probe_uclass(struct unit_test_state *uts)
{
struct udevice *bus, *dev;
/*
* See testfdt_drv_probe() which effectively checks that the uclass
* flag is set before that method is called
*/
ut_assertok(uclass_get_device(UCLASS_TEST_BUS, 0, &bus));
for (device_find_first_child(bus, &dev);
dev;
device_find_next_child(&dev)) {
struct dm_test_priv *priv = dev_get_priv(dev);
/* Check that things happened in the right order */
ut_asserteq_ptr(NULL, priv);
ut_assertok(device_probe(dev));
priv = dev_get_priv(dev);
ut_assert(priv != NULL);
ut_asserteq(1, priv->uclass_flag);
ut_asserteq(1, priv->uclass_total);
}
ut_asserteq(3, device_get_child_count(bus));
return 0;
}
DM_TEST(dm_test_bus_child_pre_probe_uclass,
UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
/*
* Test that the bus' uclass' child_post_probe() is called after the
* device's probe() method
*/
static int dm_test_bus_child_post_probe_uclass(struct unit_test_state *uts)
{
struct udevice *bus, *dev;
/*
* See testfdt_drv_probe() which effectively initializes that
* the uclass postp flag is set to a value
*/
ut_assertok(uclass_get_device(UCLASS_TEST_BUS, 0, &bus));
for (device_find_first_child(bus, &dev);
dev;
device_find_next_child(&dev)) {
struct dm_test_priv *priv = dev_get_priv(dev);
/* Check that things happened in the right order */
ut_asserteq_ptr(NULL, priv);
ut_assertok(device_probe(dev));
priv = dev_get_priv(dev);
ut_assert(priv != NULL);
ut_asserteq(0, priv->uclass_postp);
}
ut_asserteq(3, device_get_child_count(bus));
return 0;
}
DM_TEST(dm_test_bus_child_post_probe_uclass,
UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
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