Revert "hw/i386: Update structures to save the number of nodes per package"
[qemu.git] / tests / test-x86-cpuid.c
1 /*
2 * Test code for x86 CPUID 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 /* simple tests for 1 thread per core, 1 core per die, 1 die per package */
34 topo_info = (X86CPUTopoInfo) {1, 1, 1};
35 g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 0);
36 g_assert_cmpuint(apicid_core_width(&topo_info), ==, 0);
37 g_assert_cmpuint(apicid_die_width(&topo_info), ==, 0);
38
39 topo_info = (X86CPUTopoInfo) {1, 1, 1};
40 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 0), ==, 0);
41 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 1), ==, 1);
42 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 2), ==, 2);
43 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 3), ==, 3);
44
45
46 /* Test field width calculation for multiple values
47 */
48 topo_info = (X86CPUTopoInfo) {1, 1, 2};
49 g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 1);
50 topo_info = (X86CPUTopoInfo) {1, 1, 3};
51 g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 2);
52 topo_info = (X86CPUTopoInfo) {1, 1, 4};
53 g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 2);
54
55 topo_info = (X86CPUTopoInfo) {1, 1, 14};
56 g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 4);
57 topo_info = (X86CPUTopoInfo) {1, 1, 15};
58 g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 4);
59 topo_info = (X86CPUTopoInfo) {1, 1, 16};
60 g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 4);
61 topo_info = (X86CPUTopoInfo) {1, 1, 17};
62 g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 5);
63
64
65 topo_info = (X86CPUTopoInfo) {1, 30, 2};
66 g_assert_cmpuint(apicid_core_width(&topo_info), ==, 5);
67 topo_info = (X86CPUTopoInfo) {1, 31, 2};
68 g_assert_cmpuint(apicid_core_width(&topo_info), ==, 5);
69 topo_info = (X86CPUTopoInfo) {1, 32, 2};
70 g_assert_cmpuint(apicid_core_width(&topo_info), ==, 5);
71 topo_info = (X86CPUTopoInfo) {1, 33, 2};
72 g_assert_cmpuint(apicid_core_width(&topo_info), ==, 6);
73
74 topo_info = (X86CPUTopoInfo) {1, 30, 2};
75 g_assert_cmpuint(apicid_die_width(&topo_info), ==, 0);
76 topo_info = (X86CPUTopoInfo) {2, 30, 2};
77 g_assert_cmpuint(apicid_die_width(&topo_info), ==, 1);
78 topo_info = (X86CPUTopoInfo) {3, 30, 2};
79 g_assert_cmpuint(apicid_die_width(&topo_info), ==, 2);
80 topo_info = (X86CPUTopoInfo) {4, 30, 2};
81 g_assert_cmpuint(apicid_die_width(&topo_info), ==, 2);
82
83 /* build a weird topology and see if IDs are calculated correctly
84 */
85
86 /* This will use 2 bits for thread ID and 3 bits for core ID
87 */
88 topo_info = (X86CPUTopoInfo) {1, 6, 3};
89 g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 2);
90 g_assert_cmpuint(apicid_core_offset(&topo_info), ==, 2);
91 g_assert_cmpuint(apicid_die_offset(&topo_info), ==, 5);
92 g_assert_cmpuint(apicid_pkg_offset(&topo_info), ==, 5);
93
94 topo_info = (X86CPUTopoInfo) {1, 6, 3};
95 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 0), ==, 0);
96 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 1), ==, 1);
97 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 2), ==, 2);
98
99 topo_info = (X86CPUTopoInfo) {1, 6, 3};
100 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 1 * 3 + 0), ==,
101 (1 << 2) | 0);
102 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 1 * 3 + 1), ==,
103 (1 << 2) | 1);
104 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 1 * 3 + 2), ==,
105 (1 << 2) | 2);
106
107 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 2 * 3 + 0), ==,
108 (2 << 2) | 0);
109 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 2 * 3 + 1), ==,
110 (2 << 2) | 1);
111 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 2 * 3 + 2), ==,
112 (2 << 2) | 2);
113
114 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 5 * 3 + 0), ==,
115 (5 << 2) | 0);
116 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 5 * 3 + 1), ==,
117 (5 << 2) | 1);
118 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 5 * 3 + 2), ==,
119 (5 << 2) | 2);
120
121 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info,
122 1 * 6 * 3 + 0 * 3 + 0), ==, (1 << 5));
123 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info,
124 1 * 6 * 3 + 1 * 3 + 1), ==, (1 << 5) | (1 << 2) | 1);
125 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info,
126 3 * 6 * 3 + 5 * 3 + 2), ==, (3 << 5) | (5 << 2) | 2);
127 }
128
129 int main(int argc, char **argv)
130 {
131 g_test_init(&argc, &argv, NULL);
132
133 g_test_add_func("/cpuid/topology/basic", test_topo_bits);
134
135 g_test_run();
136
137 return 0;
138 }