@samitouri / QOSamiQemu
Code Commits Issues Pulls Sessions CI/CD
master
master
c 152 lines 6.36 KB
Raw
1 /*
2 * Test code for x86 APIC ID and Topology functions
3 *
4 * Copyright (c) 2012 Red Hat Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #include "qemu/osdep.h"
26
27 #include "hw/i386/topology.h"
28
29 static void test_topo_bits(void)
30 {
31 X86CPUTopoInfo topo_info = {0};
32
33 /*
34 * simple tests for 1 thread per core, 1 core per module,
35 * 1 module per die, 1 die per package
36 */
37 topo_info = (X86CPUTopoInfo) {1, 1, 1, 1};
38 g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 0);
39 g_assert_cmpuint(apicid_core_width(&topo_info), ==, 0);
40 g_assert_cmpuint(apicid_module_width(&topo_info), ==, 0);
41 g_assert_cmpuint(apicid_die_width(&topo_info), ==, 0);
42
43 topo_info = (X86CPUTopoInfo) {1, 1, 1, 1};
44 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 0), ==, 0);
45 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 1), ==, 1);
46 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 2), ==, 2);
47 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 3), ==, 3);
48
49
50 /* Test field width calculation for multiple values
51 */
52 topo_info = (X86CPUTopoInfo) {1, 1, 1, 2};
53 g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 1);
54 topo_info = (X86CPUTopoInfo) {1, 1, 1, 3};
55 g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 2);
56 topo_info = (X86CPUTopoInfo) {1, 1, 1, 4};
57 g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 2);
58
59 topo_info = (X86CPUTopoInfo) {1, 1, 1, 14};
60 g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 4);
61 topo_info = (X86CPUTopoInfo) {1, 1, 1, 15};
62 g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 4);
63 topo_info = (X86CPUTopoInfo) {1, 1, 1, 16};
64 g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 4);
65 topo_info = (X86CPUTopoInfo) {1, 1, 1, 17};
66 g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 5);
67
68
69 topo_info = (X86CPUTopoInfo) {1, 1, 30, 2};
70 g_assert_cmpuint(apicid_core_width(&topo_info), ==, 5);
71 topo_info = (X86CPUTopoInfo) {1, 1, 31, 2};
72 g_assert_cmpuint(apicid_core_width(&topo_info), ==, 5);
73 topo_info = (X86CPUTopoInfo) {1, 1, 32, 2};
74 g_assert_cmpuint(apicid_core_width(&topo_info), ==, 5);
75 topo_info = (X86CPUTopoInfo) {1, 1, 33, 2};
76 g_assert_cmpuint(apicid_core_width(&topo_info), ==, 6);
77
78 topo_info = (X86CPUTopoInfo) {1, 6, 30, 2};
79 g_assert_cmpuint(apicid_module_width(&topo_info), ==, 3);
80 topo_info = (X86CPUTopoInfo) {1, 7, 30, 2};
81 g_assert_cmpuint(apicid_module_width(&topo_info), ==, 3);
82 topo_info = (X86CPUTopoInfo) {1, 8, 30, 2};
83 g_assert_cmpuint(apicid_module_width(&topo_info), ==, 3);
84 topo_info = (X86CPUTopoInfo) {1, 9, 30, 2};
85 g_assert_cmpuint(apicid_module_width(&topo_info), ==, 4);
86
87 topo_info = (X86CPUTopoInfo) {1, 6, 30, 2};
88 g_assert_cmpuint(apicid_die_width(&topo_info), ==, 0);
89 topo_info = (X86CPUTopoInfo) {2, 6, 30, 2};
90 g_assert_cmpuint(apicid_die_width(&topo_info), ==, 1);
91 topo_info = (X86CPUTopoInfo) {3, 6, 30, 2};
92 g_assert_cmpuint(apicid_die_width(&topo_info), ==, 2);
93 topo_info = (X86CPUTopoInfo) {4, 6, 30, 2};
94 g_assert_cmpuint(apicid_die_width(&topo_info), ==, 2);
95
96 /* build a weird topology and see if IDs are calculated correctly
97 */
98
99 /* This will use 2 bits for thread ID and 3 bits for core ID
100 */
101 topo_info = (X86CPUTopoInfo) {1, 1, 6, 3};
102 g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 2);
103 g_assert_cmpuint(apicid_core_offset(&topo_info), ==, 2);
104 g_assert_cmpuint(apicid_module_offset(&topo_info), ==, 5);
105 g_assert_cmpuint(apicid_die_offset(&topo_info), ==, 5);
106 g_assert_cmpuint(apicid_pkg_offset(&topo_info), ==, 5);
107
108 topo_info = (X86CPUTopoInfo) {1, 1, 6, 3};
109 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 0), ==, 0);
110 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 1), ==, 1);
111 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 2), ==, 2);
112
113 topo_info = (X86CPUTopoInfo) {1, 1, 6, 3};
114 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 1 * 3 + 0), ==,
115 (1 << 2) | 0);
116 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 1 * 3 + 1), ==,
117 (1 << 2) | 1);
118 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 1 * 3 + 2), ==,
119 (1 << 2) | 2);
120
121 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 2 * 3 + 0), ==,
122 (2 << 2) | 0);
123 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 2 * 3 + 1), ==,
124 (2 << 2) | 1);
125 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 2 * 3 + 2), ==,
126 (2 << 2) | 2);
127
128 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 5 * 3 + 0), ==,
129 (5 << 2) | 0);
130 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 5 * 3 + 1), ==,
131 (5 << 2) | 1);
132 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 5 * 3 + 2), ==,
133 (5 << 2) | 2);
134
135 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info,
136 1 * 6 * 3 + 0 * 3 + 0), ==, (1 << 5));
137 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info,
138 1 * 6 * 3 + 1 * 3 + 1), ==, (1 << 5) | (1 << 2) | 1);
139 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info,
140 3 * 6 * 3 + 5 * 3 + 2), ==, (3 << 5) | (5 << 2) | 2);
141 }
142
143 int main(int argc, char **argv)
144 {
145 g_test_init(&argc, &argv, NULL);
146
147 g_test_add_func("/cpuid/topology/basic", test_topo_bits);
148
149 g_test_run();
150
151 return 0;
152 }