Orange Pi5 kernel

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright 2019 NXP
 */
#include <kunit/test.h>
#include <linux/pm_qos.h>
 
/* Basic test for aggregating two "min" requests */
static void freq_qos_test_min(struct kunit *test)
{
<------>struct freq_constraints	qos;
<------>struct freq_qos_request	req1, req2;
<------>int ret;
 
<------>freq_constraints_init(&qos);
<------>memset(&req1, 0, sizeof(req1));
<------>memset(&req2, 0, sizeof(req2));
 
<------>ret = freq_qos_add_request(&qos, &req1, FREQ_QOS_MIN, 1000);
<------>KUNIT_EXPECT_EQ(test, ret, 1);
<------>ret = freq_qos_add_request(&qos, &req2, FREQ_QOS_MIN, 2000);
<------>KUNIT_EXPECT_EQ(test, ret, 1);
 
<------>KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MIN), 2000);
 
<------>ret = freq_qos_remove_request(&req2);
<------>KUNIT_EXPECT_EQ(test, ret, 1);
<------>KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MIN), 1000);
 
<------>ret = freq_qos_remove_request(&req1);
<------>KUNIT_EXPECT_EQ(test, ret, 1);
<------>KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MIN),
<------><------><------>FREQ_QOS_MIN_DEFAULT_VALUE);
}
 
/* Test that requests for MAX_DEFAULT_VALUE have no effect */
static void freq_qos_test_maxdef(struct kunit *test)
{
<------>struct freq_constraints	qos;
<------>struct freq_qos_request	req1, req2;
<------>int ret;
 
<------>freq_constraints_init(&qos);
<------>memset(&req1, 0, sizeof(req1));
<------>memset(&req2, 0, sizeof(req2));
<------>KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MAX),
<------><------><------>FREQ_QOS_MAX_DEFAULT_VALUE);
 
<------>ret = freq_qos_add_request(&qos, &req1, FREQ_QOS_MAX,
<------><------><------>FREQ_QOS_MAX_DEFAULT_VALUE);
<------>KUNIT_EXPECT_EQ(test, ret, 0);
<------>ret = freq_qos_add_request(&qos, &req2, FREQ_QOS_MAX,
<------><------><------>FREQ_QOS_MAX_DEFAULT_VALUE);
<------>KUNIT_EXPECT_EQ(test, ret, 0);
 
<------>/* Add max 1000 */
<------>ret = freq_qos_update_request(&req1, 1000);
<------>KUNIT_EXPECT_EQ(test, ret, 1);
<------>KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MAX), 1000);
 
<------>/* Add max 2000, no impact */
<------>ret = freq_qos_update_request(&req2, 2000);
<------>KUNIT_EXPECT_EQ(test, ret, 0);
<------>KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MAX), 1000);
 
<------>/* Remove max 1000, new max 2000 */
<------>ret = freq_qos_remove_request(&req1);
<------>KUNIT_EXPECT_EQ(test, ret, 1);
<------>KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MAX), 2000);
}
 
/*
 * Test that a freq_qos_request can be added again after removal
 *
 * This issue was solved by commit 05ff1ba412fd ("PM: QoS: Invalidate frequency
 * QoS requests after removal")
 */
static void freq_qos_test_readd(struct kunit *test)
{
<------>struct freq_constraints	qos;
<------>struct freq_qos_request	req;
<------>int ret;
 
<------>freq_constraints_init(&qos);
<------>memset(&req, 0, sizeof(req));
<------>KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MIN),
<------><------><------>FREQ_QOS_MIN_DEFAULT_VALUE);
 
<------>/* Add */
<------>ret = freq_qos_add_request(&qos, &req, FREQ_QOS_MIN, 1000);
<------>KUNIT_EXPECT_EQ(test, ret, 1);
<------>KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MIN), 1000);
 
<------>/* Remove */
<------>ret = freq_qos_remove_request(&req);
<------>KUNIT_EXPECT_EQ(test, ret, 1);
<------>KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MIN),
<------><------><------>FREQ_QOS_MIN_DEFAULT_VALUE);
 
<------>/* Add again */
<------>ret = freq_qos_add_request(&qos, &req, FREQ_QOS_MIN, 2000);
<------>KUNIT_EXPECT_EQ(test, ret, 1);
<------>KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MIN), 2000);
}
 
static struct kunit_case pm_qos_test_cases[] = {
<------>KUNIT_CASE(freq_qos_test_min),
<------>KUNIT_CASE(freq_qos_test_maxdef),
<------>KUNIT_CASE(freq_qos_test_readd),
<------>{},
};
 
static struct kunit_suite pm_qos_test_module = {
<------>.name = "qos-kunit-test",
<------>.test_cases = pm_qos_test_cases,
};
kunit_test_suites(&pm_qos_test_module);