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/*
* 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;
}
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