1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Copyright 2019 NXP
4*4882a593Smuzhiyun */
5*4882a593Smuzhiyun #include <kunit/test.h>
6*4882a593Smuzhiyun #include <linux/pm_qos.h>
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun /* Basic test for aggregating two "min" requests */
freq_qos_test_min(struct kunit * test)9*4882a593Smuzhiyun static void freq_qos_test_min(struct kunit *test)
10*4882a593Smuzhiyun {
11*4882a593Smuzhiyun struct freq_constraints qos;
12*4882a593Smuzhiyun struct freq_qos_request req1, req2;
13*4882a593Smuzhiyun int ret;
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun freq_constraints_init(&qos);
16*4882a593Smuzhiyun memset(&req1, 0, sizeof(req1));
17*4882a593Smuzhiyun memset(&req2, 0, sizeof(req2));
18*4882a593Smuzhiyun
19*4882a593Smuzhiyun ret = freq_qos_add_request(&qos, &req1, FREQ_QOS_MIN, 1000);
20*4882a593Smuzhiyun KUNIT_EXPECT_EQ(test, ret, 1);
21*4882a593Smuzhiyun ret = freq_qos_add_request(&qos, &req2, FREQ_QOS_MIN, 2000);
22*4882a593Smuzhiyun KUNIT_EXPECT_EQ(test, ret, 1);
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MIN), 2000);
25*4882a593Smuzhiyun
26*4882a593Smuzhiyun ret = freq_qos_remove_request(&req2);
27*4882a593Smuzhiyun KUNIT_EXPECT_EQ(test, ret, 1);
28*4882a593Smuzhiyun KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MIN), 1000);
29*4882a593Smuzhiyun
30*4882a593Smuzhiyun ret = freq_qos_remove_request(&req1);
31*4882a593Smuzhiyun KUNIT_EXPECT_EQ(test, ret, 1);
32*4882a593Smuzhiyun KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MIN),
33*4882a593Smuzhiyun FREQ_QOS_MIN_DEFAULT_VALUE);
34*4882a593Smuzhiyun }
35*4882a593Smuzhiyun
36*4882a593Smuzhiyun /* Test that requests for MAX_DEFAULT_VALUE have no effect */
freq_qos_test_maxdef(struct kunit * test)37*4882a593Smuzhiyun static void freq_qos_test_maxdef(struct kunit *test)
38*4882a593Smuzhiyun {
39*4882a593Smuzhiyun struct freq_constraints qos;
40*4882a593Smuzhiyun struct freq_qos_request req1, req2;
41*4882a593Smuzhiyun int ret;
42*4882a593Smuzhiyun
43*4882a593Smuzhiyun freq_constraints_init(&qos);
44*4882a593Smuzhiyun memset(&req1, 0, sizeof(req1));
45*4882a593Smuzhiyun memset(&req2, 0, sizeof(req2));
46*4882a593Smuzhiyun KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MAX),
47*4882a593Smuzhiyun FREQ_QOS_MAX_DEFAULT_VALUE);
48*4882a593Smuzhiyun
49*4882a593Smuzhiyun ret = freq_qos_add_request(&qos, &req1, FREQ_QOS_MAX,
50*4882a593Smuzhiyun FREQ_QOS_MAX_DEFAULT_VALUE);
51*4882a593Smuzhiyun KUNIT_EXPECT_EQ(test, ret, 0);
52*4882a593Smuzhiyun ret = freq_qos_add_request(&qos, &req2, FREQ_QOS_MAX,
53*4882a593Smuzhiyun FREQ_QOS_MAX_DEFAULT_VALUE);
54*4882a593Smuzhiyun KUNIT_EXPECT_EQ(test, ret, 0);
55*4882a593Smuzhiyun
56*4882a593Smuzhiyun /* Add max 1000 */
57*4882a593Smuzhiyun ret = freq_qos_update_request(&req1, 1000);
58*4882a593Smuzhiyun KUNIT_EXPECT_EQ(test, ret, 1);
59*4882a593Smuzhiyun KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MAX), 1000);
60*4882a593Smuzhiyun
61*4882a593Smuzhiyun /* Add max 2000, no impact */
62*4882a593Smuzhiyun ret = freq_qos_update_request(&req2, 2000);
63*4882a593Smuzhiyun KUNIT_EXPECT_EQ(test, ret, 0);
64*4882a593Smuzhiyun KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MAX), 1000);
65*4882a593Smuzhiyun
66*4882a593Smuzhiyun /* Remove max 1000, new max 2000 */
67*4882a593Smuzhiyun ret = freq_qos_remove_request(&req1);
68*4882a593Smuzhiyun KUNIT_EXPECT_EQ(test, ret, 1);
69*4882a593Smuzhiyun KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MAX), 2000);
70*4882a593Smuzhiyun }
71*4882a593Smuzhiyun
72*4882a593Smuzhiyun /*
73*4882a593Smuzhiyun * Test that a freq_qos_request can be added again after removal
74*4882a593Smuzhiyun *
75*4882a593Smuzhiyun * This issue was solved by commit 05ff1ba412fd ("PM: QoS: Invalidate frequency
76*4882a593Smuzhiyun * QoS requests after removal")
77*4882a593Smuzhiyun */
freq_qos_test_readd(struct kunit * test)78*4882a593Smuzhiyun static void freq_qos_test_readd(struct kunit *test)
79*4882a593Smuzhiyun {
80*4882a593Smuzhiyun struct freq_constraints qos;
81*4882a593Smuzhiyun struct freq_qos_request req;
82*4882a593Smuzhiyun int ret;
83*4882a593Smuzhiyun
84*4882a593Smuzhiyun freq_constraints_init(&qos);
85*4882a593Smuzhiyun memset(&req, 0, sizeof(req));
86*4882a593Smuzhiyun KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MIN),
87*4882a593Smuzhiyun FREQ_QOS_MIN_DEFAULT_VALUE);
88*4882a593Smuzhiyun
89*4882a593Smuzhiyun /* Add */
90*4882a593Smuzhiyun ret = freq_qos_add_request(&qos, &req, FREQ_QOS_MIN, 1000);
91*4882a593Smuzhiyun KUNIT_EXPECT_EQ(test, ret, 1);
92*4882a593Smuzhiyun KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MIN), 1000);
93*4882a593Smuzhiyun
94*4882a593Smuzhiyun /* Remove */
95*4882a593Smuzhiyun ret = freq_qos_remove_request(&req);
96*4882a593Smuzhiyun KUNIT_EXPECT_EQ(test, ret, 1);
97*4882a593Smuzhiyun KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MIN),
98*4882a593Smuzhiyun FREQ_QOS_MIN_DEFAULT_VALUE);
99*4882a593Smuzhiyun
100*4882a593Smuzhiyun /* Add again */
101*4882a593Smuzhiyun ret = freq_qos_add_request(&qos, &req, FREQ_QOS_MIN, 2000);
102*4882a593Smuzhiyun KUNIT_EXPECT_EQ(test, ret, 1);
103*4882a593Smuzhiyun KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MIN), 2000);
104*4882a593Smuzhiyun }
105*4882a593Smuzhiyun
106*4882a593Smuzhiyun static struct kunit_case pm_qos_test_cases[] = {
107*4882a593Smuzhiyun KUNIT_CASE(freq_qos_test_min),
108*4882a593Smuzhiyun KUNIT_CASE(freq_qos_test_maxdef),
109*4882a593Smuzhiyun KUNIT_CASE(freq_qos_test_readd),
110*4882a593Smuzhiyun {},
111*4882a593Smuzhiyun };
112*4882a593Smuzhiyun
113*4882a593Smuzhiyun static struct kunit_suite pm_qos_test_module = {
114*4882a593Smuzhiyun .name = "qos-kunit-test",
115*4882a593Smuzhiyun .test_cases = pm_qos_test_cases,
116*4882a593Smuzhiyun };
117*4882a593Smuzhiyun kunit_test_suites(&pm_qos_test_module);
118