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