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 } 153