/* * Test code for x86 CPUID and Topology functions * * Copyright (c) 2012 Red Hat Inc. * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include <glib.h> #include "topology.h" static void test_topo_bits(void) { /* simple tests for 1 thread per core, 1 core per socket */ g_assert_cmpuint(apicid_smt_width(1, 1), ==, 0); g_assert_cmpuint(apicid_core_width(1, 1), ==, 0); g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 1, 0), ==, 0); g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 1, 1), ==, 1); g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 1, 2), ==, 2); g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 1, 3), ==, 3); /* Test field width calculation for multiple values */ g_assert_cmpuint(apicid_smt_width(1, 2), ==, 1); g_assert_cmpuint(apicid_smt_width(1, 3), ==, 2); g_assert_cmpuint(apicid_smt_width(1, 4), ==, 2); g_assert_cmpuint(apicid_smt_width(1, 14), ==, 4); g_assert_cmpuint(apicid_smt_width(1, 15), ==, 4); g_assert_cmpuint(apicid_smt_width(1, 16), ==, 4); g_assert_cmpuint(apicid_smt_width(1, 17), ==, 5); g_assert_cmpuint(apicid_core_width(30, 2), ==, 5); g_assert_cmpuint(apicid_core_width(31, 2), ==, 5); g_assert_cmpuint(apicid_core_width(32, 2), ==, 5); g_assert_cmpuint(apicid_core_width(33, 2), ==, 6); /* build a weird topology and see if IDs are calculated correctly */ /* This will use 2 bits for thread ID and 3 bits for core ID */ g_assert_cmpuint(apicid_smt_width(6, 3), ==, 2); g_assert_cmpuint(apicid_core_width(6, 3), ==, 3); g_assert_cmpuint(apicid_pkg_offset(6, 3), ==, 5); g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 0), ==, 0); g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 1), ==, 1); g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 2), ==, 2); g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 1 * 3 + 0), ==, (1 << 2) | 0); g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 1 * 3 + 1), ==, (1 << 2) | 1); g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 1 * 3 + 2), ==, (1 << 2) | 2); g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 2 * 3 + 0), ==, (2 << 2) | 0); g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 2 * 3 + 1), ==, (2 << 2) | 1); g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 2 * 3 + 2), ==, (2 << 2) | 2); g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 5 * 3 + 0), ==, (5 << 2) | 0); g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 5 * 3 + 1), ==, (5 << 2) | 1); g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 5 * 3 + 2), ==, (5 << 2) | 2); g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 1 * 6 * 3 + 0 * 3 + 0), ==, (1 << 5)); g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 1 * 6 * 3 + 1 * 3 + 1), ==, (1 << 5) | (1 << 2) | 1); g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 3 * 6 * 3 + 5 * 3 + 2), ==, (3 << 5) | (5 << 2) | 2); } int main(int argc, char **argv) { g_test_init(&argc, &argv, NULL); g_test_add_func("/cpuid/topology/basic", test_topo_bits); g_test_run(); return 0; }