test: Add tests for CPU uclass

Add a sandbox CPU driver, and some tests for the CPU uclass.

Signed-off-by: Mario Six <mario.six@gdsys.cc>
This commit is contained in:
Mario Six 2018-08-06 10:23:44 +02:00 committed by Simon Glass
parent 57370de377
commit fa44b53398
5 changed files with 120 additions and 0 deletions

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@ -297,6 +297,18 @@
mbox-names = "other", "test";
};
cpu-test1 {
compatible = "sandbox,cpu_sandbox";
};
cpu-test2 {
compatible = "sandbox,cpu_sandbox";
};
cpu-test3 {
compatible = "sandbox,cpu_sandbox";
};
misc-test {
compatible = "sandbox,misc_sandbox";
};

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@ -7,3 +7,4 @@
obj-$(CONFIG_CPU) += cpu-uclass.o
obj-$(CONFIG_ARCH_BMIPS) += bmips_cpu.o
obj-$(CONFIG_SANDBOX) += cpu_sandbox.o

61
drivers/cpu/cpu_sandbox.c Normal file
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@ -0,0 +1,61 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2018
* Mario Six, Guntermann & Drunck GmbH, mario.six@gdsys.cc
*/
#include <common.h>
#include <dm.h>
#include <cpu.h>
int cpu_sandbox_get_desc(struct udevice *dev, char *buf, int size)
{
snprintf(buf, size, "LEG Inc. SuperMegaUltraTurbo CPU No. 1");
return 0;
}
int cpu_sandbox_get_info(struct udevice *dev, struct cpu_info *info)
{
info->cpu_freq = 42 * 42 * 42 * 42 * 42;
info->features = 0x42424242;
return 0;
}
int cpu_sandbox_get_count(struct udevice *dev)
{
return 42;
}
int cpu_sandbox_get_vendor(struct udevice *dev, char *buf, int size)
{
snprintf(buf, size, "Languid Example Garbage Inc.");
return 0;
}
static const struct cpu_ops cpu_sandbox_ops = {
.get_desc = cpu_sandbox_get_desc,
.get_info = cpu_sandbox_get_info,
.get_count = cpu_sandbox_get_count,
.get_vendor = cpu_sandbox_get_vendor,
};
int cpu_sandbox_probe(struct udevice *dev)
{
return 0;
}
static const struct udevice_id cpu_sandbox_ids[] = {
{ .compatible = "sandbox,cpu_sandbox" },
{ }
};
U_BOOT_DRIVER(cpu_sandbox) = {
.name = "cpu_sandbox",
.id = UCLASS_CPU,
.ops = &cpu_sandbox_ops,
.of_match = cpu_sandbox_ids,
.probe = cpu_sandbox_probe,
};

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@ -47,4 +47,5 @@ obj-$(CONFIG_WDT) += wdt.o
obj-$(CONFIG_AXI) += axi.o
obj-$(CONFIG_MISC) += misc.o
obj-$(CONFIG_DM_SERIAL) += serial.o
obj-$(CONFIG_CPU) += cpu.o
endif

45
test/dm/cpu.c Normal file
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@ -0,0 +1,45 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2018
* Mario Six, Guntermann & Drunck GmbH, mario.six@gdsys.cc
*/
#include <common.h>
#include <dm.h>
#include <dm/test.h>
#include <dm/uclass-internal.h>
#include <cpu.h>
#include <test/ut.h>
static int dm_test_cpu(struct unit_test_state *uts)
{
struct udevice *dev;
char text[128];
struct cpu_info info;
ut_assertok(cpu_probe_all());
/* Check that cpu_probe_all really activated all CPUs */
for (uclass_find_first_device(UCLASS_CPU, &dev);
dev;
uclass_find_next_device(&dev))
ut_assert(dev->flags & DM_FLAG_ACTIVATED);
ut_assertok(uclass_get_device_by_name(UCLASS_CPU, "cpu-test1", &dev));
ut_assertok(cpu_get_desc(dev, text, sizeof(text)));
ut_assertok(strcmp(text, "LEG Inc. SuperMegaUltraTurbo CPU No. 1"));
ut_assertok(cpu_get_info(dev, &info));
ut_asserteq(info.cpu_freq, 42 * 42 * 42 * 42 * 42);
ut_asserteq(info.features, 0x42424242);
ut_asserteq(cpu_get_count(dev), 42);
ut_assertok(cpu_get_vendor(dev, text, sizeof(text)));
ut_assertok(strcmp(text, "Languid Example Garbage Inc."));
return 0;
}
DM_TEST(dm_test_cpu, DM_TESTF_SCAN_FDT);