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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
681c28a3 25#include "qemu/osdep.h"
247c9de1 26
869b7649 27#include "hw/i386/topology.h"
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28
29static void test_topo_bits(void)
30{
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31 X86CPUTopoInfo topo_info = {0};
32
d65af288 33 /* simple tests for 1 thread per core, 1 core per die, 1 die per package */
c24a41bb 34 topo_info = (X86CPUTopoInfo) {0, 1, 1, 1};
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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);
247c9de1 38
c24a41bb 39 topo_info = (X86CPUTopoInfo) {0, 1, 1, 1};
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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);
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44
45
46 /* Test field width calculation for multiple values
47 */
c24a41bb 48 topo_info = (X86CPUTopoInfo) {0, 1, 1, 2};
f20dec0b 49 g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 1);
c24a41bb 50 topo_info = (X86CPUTopoInfo) {0, 1, 1, 3};
f20dec0b 51 g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 2);
c24a41bb 52 topo_info = (X86CPUTopoInfo) {0, 1, 1, 4};
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53 g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 2);
54
c24a41bb 55 topo_info = (X86CPUTopoInfo) {0, 1, 1, 14};
f20dec0b 56 g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 4);
c24a41bb 57 topo_info = (X86CPUTopoInfo) {0, 1, 1, 15};
f20dec0b 58 g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 4);
c24a41bb 59 topo_info = (X86CPUTopoInfo) {0, 1, 1, 16};
f20dec0b 60 g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 4);
c24a41bb 61 topo_info = (X86CPUTopoInfo) {0, 1, 1, 17};
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62 g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 5);
63
64
c24a41bb 65 topo_info = (X86CPUTopoInfo) {0, 1, 30, 2};
f20dec0b 66 g_assert_cmpuint(apicid_core_width(&topo_info), ==, 5);
c24a41bb 67 topo_info = (X86CPUTopoInfo) {0, 1, 31, 2};
f20dec0b 68 g_assert_cmpuint(apicid_core_width(&topo_info), ==, 5);
c24a41bb 69 topo_info = (X86CPUTopoInfo) {0, 1, 32, 2};
f20dec0b 70 g_assert_cmpuint(apicid_core_width(&topo_info), ==, 5);
c24a41bb 71 topo_info = (X86CPUTopoInfo) {0, 1, 33, 2};
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72 g_assert_cmpuint(apicid_core_width(&topo_info), ==, 6);
73
c24a41bb 74 topo_info = (X86CPUTopoInfo) {0, 1, 30, 2};
f20dec0b 75 g_assert_cmpuint(apicid_die_width(&topo_info), ==, 0);
c24a41bb 76 topo_info = (X86CPUTopoInfo) {0, 2, 30, 2};
f20dec0b 77 g_assert_cmpuint(apicid_die_width(&topo_info), ==, 1);
c24a41bb 78 topo_info = (X86CPUTopoInfo) {0, 3, 30, 2};
f20dec0b 79 g_assert_cmpuint(apicid_die_width(&topo_info), ==, 2);
c24a41bb 80 topo_info = (X86CPUTopoInfo) {0, 4, 30, 2};
f20dec0b 81 g_assert_cmpuint(apicid_die_width(&topo_info), ==, 2);
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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 */
c24a41bb 88 topo_info = (X86CPUTopoInfo) {0, 1, 6, 3};
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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);
247c9de1 93
c24a41bb 94 topo_info = (X86CPUTopoInfo) {0, 1, 6, 3};
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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);
247c9de1 98
c24a41bb 99 topo_info = (X86CPUTopoInfo) {0, 1, 6, 3};
53a5e7bd 100 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 1 * 3 + 0), ==,
247c9de1 101 (1 << 2) | 0);
53a5e7bd 102 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 1 * 3 + 1), ==,
247c9de1 103 (1 << 2) | 1);
53a5e7bd 104 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 1 * 3 + 2), ==,
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105 (1 << 2) | 2);
106
53a5e7bd 107 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 2 * 3 + 0), ==,
247c9de1 108 (2 << 2) | 0);
53a5e7bd 109 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 2 * 3 + 1), ==,
247c9de1 110 (2 << 2) | 1);
53a5e7bd 111 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 2 * 3 + 2), ==,
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112 (2 << 2) | 2);
113
53a5e7bd 114 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 5 * 3 + 0), ==,
247c9de1 115 (5 << 2) | 0);
53a5e7bd 116 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 5 * 3 + 1), ==,
247c9de1 117 (5 << 2) | 1);
53a5e7bd 118 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 5 * 3 + 2), ==,
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119 (5 << 2) | 2);
120
53a5e7bd 121 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info,
d65af288 122 1 * 6 * 3 + 0 * 3 + 0), ==, (1 << 5));
53a5e7bd 123 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info,
d65af288 124 1 * 6 * 3 + 1 * 3 + 1), ==, (1 << 5) | (1 << 2) | 1);
53a5e7bd 125 g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info,
d65af288 126 3 * 6 * 3 + 5 * 3 + 2), ==, (3 << 5) | (5 << 2) | 2);
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127}
128
129int 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}