/* * Copyright © 2022 Collabora Ltd. * * SPDX-License-Identifier: MIT * * 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 <libglnx.h> #include <steam-runtime-tools/glib-backports-internal.h> #include <steam-runtime-tools/steam-runtime-tools.h> #if defined(__x86_64__) || defined(__i386__) #include <cpuid.h> #endif #include "steam-runtime-tools/cpu-feature-internal.h" #include "test-utils.h" typedef struct { int unused; } Fixture; typedef struct { int unused; } Config; static void setup (Fixture *f, gconstpointer context) { G_GNUC_UNUSED const Config *config = context; } static void teardown (Fixture *f, gconstpointer context) { G_GNUC_UNUSED const Config *config = context; } static void test_cpu_feature (Fixture *f, gconstpointer context) { G_GNUC_UNUSED const Config *config = context; #if defined(__x86_64__) || defined(__i386__) SrtX86FeatureFlags known; SrtX86FeatureFlags present; g_autoptr(GHashTable) mock_cpuid = g_hash_table_new_full (_srt_cpuid_key_hash, _srt_cpuid_key_equals, _srt_cpuid_key_free, _srt_cpuid_data_free); present = _srt_feature_get_x86_flags (NULL, &known); /* We don't know whether SSE3 etc. are supported by the real CPU, but we * do know that the bits that are supported should be a subset of the * bits that were discovered */ g_assert_cmpint (known, ==, present | known); #if defined(__x86_64__) /* If we're compiled for x86_64 then we'd better be in long mode */ g_assert_cmpint (present & SRT_X86_FEATURE_X86_64, ==, SRT_X86_FEATURE_X86_64); #endif /* If we mock up a failing CPUID, then we know nothing */ present = _srt_feature_get_x86_flags (mock_cpuid, &known); g_assert_cmpint (known, ==, SRT_X86_FEATURE_NONE); g_assert_cmpint (present, ==, SRT_X86_FEATURE_NONE); g_hash_table_replace (mock_cpuid, _srt_cpuid_key_new (_SRT_CPUID_LEAF_PROCESSOR_INFO, 0), _srt_cpuid_data_new (0, 0, 0, 0)); g_hash_table_replace (mock_cpuid, _srt_cpuid_key_new (_SRT_CPUID_LEAF_EXT_PROCESSOR_INFO, 0), _srt_cpuid_data_new (0, 0, 0, 0)); present = _srt_feature_get_x86_flags (mock_cpuid, &known); g_assert_cmpint (known, ==, _SRT_X86_FEATURE_ALL); g_assert_cmpint (present, ==, SRT_X86_FEATURE_NONE); g_hash_table_replace (mock_cpuid, _srt_cpuid_key_new (_SRT_CPUID_LEAF_PROCESSOR_INFO, 0), _srt_cpuid_data_new (0, 0, (bit_CMPXCHG16B | bit_SSE3), 0)); g_hash_table_replace (mock_cpuid, _srt_cpuid_key_new (_SRT_CPUID_LEAF_EXT_PROCESSOR_INFO, 0), _srt_cpuid_data_new (0, 0, 0, bit_LM)); present = _srt_feature_get_x86_flags (mock_cpuid, &known); g_assert_cmpint (known, ==, _SRT_X86_FEATURE_ALL); g_assert_cmpint (present, ==, _SRT_X86_FEATURE_ALL); g_hash_table_replace (mock_cpuid, _srt_cpuid_key_new (_SRT_CPUID_LEAF_PROCESSOR_INFO, 0), _srt_cpuid_data_new (0, 0, bit_CMPXCHG16B, 0)); g_hash_table_replace (mock_cpuid, _srt_cpuid_key_new (_SRT_CPUID_LEAF_EXT_PROCESSOR_INFO, 0), _srt_cpuid_data_new (0, 0, 0, 0)); present = _srt_feature_get_x86_flags (mock_cpuid, &known); g_assert_cmpint (known, ==, _SRT_X86_FEATURE_ALL); g_assert_cmpint (present, ==, SRT_X86_FEATURE_CMPXCHG16B); g_hash_table_replace (mock_cpuid, _srt_cpuid_key_new (_SRT_CPUID_LEAF_PROCESSOR_INFO, 0), _srt_cpuid_data_new (0, 0, bit_SSE3, 0)); g_hash_table_replace (mock_cpuid, _srt_cpuid_key_new (_SRT_CPUID_LEAF_EXT_PROCESSOR_INFO, 0), _srt_cpuid_data_new (0, 0, 0, 0)); present = _srt_feature_get_x86_flags (mock_cpuid, &known); g_assert_cmpint (known, ==, _SRT_X86_FEATURE_ALL); g_assert_cmpint (present, ==, SRT_X86_FEATURE_SSE3); g_hash_table_replace (mock_cpuid, _srt_cpuid_key_new (_SRT_CPUID_LEAF_PROCESSOR_INFO, 0), _srt_cpuid_data_new (0, 0, 0, 0)); g_hash_table_replace (mock_cpuid, _srt_cpuid_key_new (_SRT_CPUID_LEAF_EXT_PROCESSOR_INFO, 0), _srt_cpuid_data_new (0, 0, 0, bit_LM)); present = _srt_feature_get_x86_flags (mock_cpuid, &known); g_assert_cmpint (known, ==, _SRT_X86_FEATURE_ALL); g_assert_cmpint (present, ==, SRT_X86_FEATURE_X86_64); #else /* !x86 */ SrtX86FeatureFlags known; SrtX86FeatureFlags present = _srt_feature_get_x86_flags (NULL, &known); g_assert_cmpint (known, ==, SRT_X86_FEATURE_NONE); g_assert_cmpint (present, ==, SRT_X86_FEATURE_NONE); #endif /* !x86 */ } int main (int argc, char **argv) { _srt_tests_init (&argc, &argv, NULL); g_test_add ("/cpu-feature", Fixture, NULL, setup, test_cpu_feature, teardown); return g_test_run (); }