mirror of https://github.com/gnss-sdr/gnss-sdr
282 lines
11 KiB
C++
282 lines
11 KiB
C++
// SPDX-FileCopyrightText: 2017 Google Inc.
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// SPDX-License-Identifier: Apache-2.0
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#include "cpuinfo_x86.h"
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#include "gtest/gtest.h"
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#include "internal/cpuid_x86.h"
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#include <cassert>
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#include <cstdio>
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#include <map>
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namespace cpu_features
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{
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class FakeCpu
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{
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public:
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Leaf CpuIdEx(uint32_t leaf_id, int ecx) const
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{
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const auto itr = cpuid_leaves_.find(std::make_pair(leaf_id, ecx));
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if (itr != cpuid_leaves_.end())
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{
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return itr->second;
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}
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return {0, 0, 0, 0};
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}
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uint32_t GetXCR0Eax() const { return xcr0_eax_; }
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void SetLeaves(std::map<std::pair<uint32_t, int>, Leaf> configuration)
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{
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cpuid_leaves_ = std::move(configuration);
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}
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void SetOsBackupsExtendedRegisters(bool os_backups_extended_registers)
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{
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xcr0_eax_ = os_backups_extended_registers ? -1 : 0;
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}
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private:
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std::map<std::pair<uint32_t, int>, Leaf> cpuid_leaves_;
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uint32_t xcr0_eax_;
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};
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auto* g_fake_cpu = new FakeCpu();
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extern "C" Leaf CpuIdEx(uint32_t leaf_id, int ecx)
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{
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return g_fake_cpu->CpuIdEx(leaf_id, ecx);
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}
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extern "C" uint32_t GetXCR0Eax(void) { return g_fake_cpu->GetXCR0Eax(); }
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namespace
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{
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TEST(CpuidX86Test, SandyBridge)
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{
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g_fake_cpu->SetOsBackupsExtendedRegisters(true);
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g_fake_cpu->SetLeaves({
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{{0x00000000, 0}, Leaf{0x0000000D, 0x756E6547, 0x6C65746E, 0x49656E69}},
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{{0x00000001, 0}, Leaf{0x000206A6, 0x00100800, 0x1F9AE3BF, 0xBFEBFBFF}},
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{{0x00000007, 0}, Leaf{0x00000000, 0x00000000, 0x00000000, 0x00000000}},
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});
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const auto info = GetX86Info();
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EXPECT_STREQ(info.vendor, "GenuineIntel");
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EXPECT_EQ(info.family, 0x06);
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EXPECT_EQ(info.model, 0x02A);
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EXPECT_EQ(info.stepping, 0x06);
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// Leaf 7 is zeroed out so none of the Leaf 7 flags are set.
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const auto features = info.features;
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EXPECT_FALSE(features.erms);
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EXPECT_FALSE(features.avx2);
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EXPECT_FALSE(features.avx512f);
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EXPECT_FALSE(features.avx512cd);
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EXPECT_FALSE(features.avx512er);
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EXPECT_FALSE(features.avx512pf);
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EXPECT_FALSE(features.avx512bw);
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EXPECT_FALSE(features.avx512dq);
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EXPECT_FALSE(features.avx512vl);
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EXPECT_FALSE(features.avx512ifma);
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EXPECT_FALSE(features.avx512vbmi);
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EXPECT_FALSE(features.avx512vbmi2);
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EXPECT_FALSE(features.avx512vnni);
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EXPECT_FALSE(features.avx512bitalg);
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EXPECT_FALSE(features.avx512vpopcntdq);
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EXPECT_FALSE(features.avx512_4vnniw);
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EXPECT_FALSE(features.avx512_4vbmi2);
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// All old cpu features should be set.
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EXPECT_TRUE(features.aes);
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EXPECT_TRUE(features.ssse3);
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EXPECT_TRUE(features.sse4_1);
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EXPECT_TRUE(features.sse4_2);
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EXPECT_TRUE(features.avx);
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EXPECT_FALSE(features.sha);
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EXPECT_TRUE(features.popcnt);
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EXPECT_FALSE(features.movbe);
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EXPECT_FALSE(features.rdrnd);
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}
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const int KiB = 1024;
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const int MiB = 1024 * KiB;
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TEST(CpuidX86Test, SandyBridgeTestOsSupport)
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{
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g_fake_cpu->SetLeaves({
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{{0x00000000, 0}, Leaf{0x0000000D, 0x756E6547, 0x6C65746E, 0x49656E69}},
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{{0x00000001, 0}, Leaf{0x000206A6, 0x00100800, 0x1F9AE3BF, 0xBFEBFBFF}},
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{{0x00000007, 0}, Leaf{0x00000000, 0x00000000, 0x00000000, 0x00000000}},
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});
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// avx is disabled if os does not support backing up ymm registers.
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g_fake_cpu->SetOsBackupsExtendedRegisters(false);
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EXPECT_FALSE(GetX86Info().features.avx);
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// avx is disabled if os does not support backing up ymm registers.
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g_fake_cpu->SetOsBackupsExtendedRegisters(true);
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EXPECT_TRUE(GetX86Info().features.avx);
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}
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TEST(CpuidX86Test, SkyLake)
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{
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g_fake_cpu->SetOsBackupsExtendedRegisters(true);
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g_fake_cpu->SetLeaves({
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{{0x00000000, 0}, Leaf{0x00000016, 0x756E6547, 0x6C65746E, 0x49656E69}},
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{{0x00000001, 0}, Leaf{0x000406E3, 0x00100800, 0x7FFAFBBF, 0xBFEBFBFF}},
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{{0x00000007, 0}, Leaf{0x00000000, 0x029C67AF, 0x00000000, 0x00000000}},
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});
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const auto info = GetX86Info();
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EXPECT_STREQ(info.vendor, "GenuineIntel");
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EXPECT_EQ(info.family, 0x06);
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EXPECT_EQ(info.model, 0x04E);
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EXPECT_EQ(info.stepping, 0x03);
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EXPECT_EQ(GetX86Microarchitecture(&info), X86Microarchitecture::INTEL_SKL);
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}
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TEST(CpuidX86Test, Branding)
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{
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g_fake_cpu->SetLeaves({
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{{0x00000000, 0}, Leaf{0x00000016, 0x756E6547, 0x6C65746E, 0x49656E69}},
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{{0x00000001, 0}, Leaf{0x000406E3, 0x00100800, 0x7FFAFBBF, 0xBFEBFBFF}},
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{{0x00000007, 0}, Leaf{0x00000000, 0x029C67AF, 0x00000000, 0x00000000}},
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{{0x80000000, 0}, Leaf{0x80000008, 0x00000000, 0x00000000, 0x00000000}},
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{{0x80000001, 0}, Leaf{0x00000000, 0x00000000, 0x00000121, 0x2C100000}},
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{{0x80000002, 0}, Leaf{0x65746E49, 0x2952286C, 0x726F4320, 0x4D542865}},
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{{0x80000003, 0}, Leaf{0x37692029, 0x3035362D, 0x43205530, 0x40205550}},
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{{0x80000004, 0}, Leaf{0x352E3220, 0x7A484730, 0x00000000, 0x00000000}},
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});
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char brand_string[49];
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FillX86BrandString(brand_string);
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EXPECT_STREQ(brand_string, "Intel(R) Core(TM) i7-6500U CPU @ 2.50GHz");
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}
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TEST(CpuidX86Test, KabyLakeCache)
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{
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g_fake_cpu->SetLeaves({
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{{0x00000000, 0}, Leaf{0x00000016, 0x756E6547, 0x6C65746E, 0x49656E69}},
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{{0x00000001, 0}, Leaf{0x000406E3, 0x00100800, 0x7FFAFBBF, 0xBFEBFBFF}},
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{{0x00000004, 0}, Leaf{0x1C004121, 0x01C0003F, 0x0000003F, 0x00000000}},
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{{0x00000004, 1}, Leaf{0x1C004122, 0x01C0003F, 0x0000003F, 0x00000000}},
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{{0x00000004, 2}, Leaf{0x1C004143, 0x00C0003F, 0x000003FF, 0x00000000}},
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{{0x00000004, 3}, Leaf{0x1C03C163, 0x02C0003F, 0x00001FFF, 0x00000002}},
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{{0x00000007, 0}, Leaf{0x00000000, 0x029C67AF, 0x00000000, 0x00000000}},
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{{0x80000000, 0}, Leaf{0x80000008, 0x00000000, 0x00000000, 0x00000000}},
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{{0x80000001, 0}, Leaf{0x00000000, 0x00000000, 0x00000121, 0x2C100000}},
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{{0x80000002, 0}, Leaf{0x65746E49, 0x2952286C, 0x726F4320, 0x4D542865}},
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{{0x80000003, 0}, Leaf{0x37692029, 0x3035362D, 0x43205530, 0x40205550}},
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});
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const auto info = GetX86CacheInfo();
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EXPECT_EQ(info.size, 4);
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EXPECT_EQ(info.levels[0].level, 1);
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EXPECT_EQ(info.levels[0].cache_type, 1);
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EXPECT_EQ(info.levels[0].cache_size, 32 * KiB);
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EXPECT_EQ(info.levels[0].ways, 8);
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EXPECT_EQ(info.levels[0].line_size, 64);
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EXPECT_EQ(info.levels[0].tlb_entries, 64);
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EXPECT_EQ(info.levels[0].partitioning, 1);
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EXPECT_EQ(info.levels[1].level, 1);
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EXPECT_EQ(info.levels[1].cache_type, 2);
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EXPECT_EQ(info.levels[1].cache_size, 32 * KiB);
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EXPECT_EQ(info.levels[1].ways, 8);
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EXPECT_EQ(info.levels[1].line_size, 64);
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EXPECT_EQ(info.levels[1].tlb_entries, 64);
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EXPECT_EQ(info.levels[1].partitioning, 1);
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EXPECT_EQ(info.levels[2].level, 2);
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EXPECT_EQ(info.levels[2].cache_type, 3);
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EXPECT_EQ(info.levels[2].cache_size, 256 * KiB);
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EXPECT_EQ(info.levels[2].ways, 4);
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EXPECT_EQ(info.levels[2].line_size, 64);
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EXPECT_EQ(info.levels[2].tlb_entries, 1024);
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EXPECT_EQ(info.levels[2].partitioning, 1);
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EXPECT_EQ(info.levels[3].level, 3);
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EXPECT_EQ(info.levels[3].cache_type, 3);
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EXPECT_EQ(info.levels[3].cache_size, 6 * MiB);
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EXPECT_EQ(info.levels[3].ways, 12);
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EXPECT_EQ(info.levels[3].line_size, 64);
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EXPECT_EQ(info.levels[3].tlb_entries, 8192);
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EXPECT_EQ(info.levels[3].partitioning, 1);
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}
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TEST(CpuidX86Test, HSWCache)
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{
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g_fake_cpu->SetLeaves({
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{{0x00000000, 0}, Leaf{0x00000016, 0x756E6547, 0x6C65746E, 0x49656E69}},
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{{0x00000001, 0}, Leaf{0x000406E3, 0x00100800, 0x7FFAFBBF, 0xBFEBFBFF}},
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{{0x00000004, 0}, Leaf{0x1C004121, 0x01C0003F, 0x0000003F, 0x00000000}},
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{{0x00000004, 1}, Leaf{0x1C004122, 0x01C0003F, 0x0000003F, 0x00000000}},
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{{0x00000004, 2}, Leaf{0x1C004143, 0x01C0003F, 0x000001FF, 0x00000000}},
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{{0x00000004, 3}, Leaf{0x1C03C163, 0x02C0003F, 0x00001FFF, 0x00000006}},
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{{0x00000007, 0}, Leaf{0x00000000, 0x029C67AF, 0x00000000, 0x00000000}},
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{{0x80000000, 0}, Leaf{0x80000008, 0x00000000, 0x00000000, 0x00000000}},
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{{0x80000001, 0}, Leaf{0x00000000, 0x00000000, 0x00000121, 0x2C100000}},
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{{0x80000002, 0}, Leaf{0x65746E49, 0x2952286C, 0x726F4320, 0x4D542865}},
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{{0x80000003, 0}, Leaf{0x37692029, 0x3035362D, 0x43205530, 0x40205550}},
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});
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const auto info = GetX86CacheInfo();
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EXPECT_EQ(info.size, 4);
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EXPECT_EQ(info.levels[0].level, 1);
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EXPECT_EQ(info.levels[0].cache_type, 1);
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EXPECT_EQ(info.levels[0].cache_size, 32 * KiB);
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EXPECT_EQ(info.levels[0].ways, 8);
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EXPECT_EQ(info.levels[0].line_size, 64);
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EXPECT_EQ(info.levels[0].tlb_entries, 64);
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EXPECT_EQ(info.levels[0].partitioning, 1);
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EXPECT_EQ(info.levels[1].level, 1);
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EXPECT_EQ(info.levels[1].cache_type, 2);
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EXPECT_EQ(info.levels[1].cache_size, 32 * KiB);
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EXPECT_EQ(info.levels[1].ways, 8);
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EXPECT_EQ(info.levels[1].line_size, 64);
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EXPECT_EQ(info.levels[1].tlb_entries, 64);
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EXPECT_EQ(info.levels[1].partitioning, 1);
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EXPECT_EQ(info.levels[2].level, 2);
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EXPECT_EQ(info.levels[2].cache_type, 3);
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EXPECT_EQ(info.levels[2].cache_size, 256 * KiB);
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EXPECT_EQ(info.levels[2].ways, 8);
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EXPECT_EQ(info.levels[2].line_size, 64);
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EXPECT_EQ(info.levels[2].tlb_entries, 512);
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EXPECT_EQ(info.levels[2].partitioning, 1);
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EXPECT_EQ(info.levels[3].level, 3);
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EXPECT_EQ(info.levels[3].cache_type, 3);
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EXPECT_EQ(info.levels[3].cache_size, 6 * MiB);
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EXPECT_EQ(info.levels[3].ways, 12);
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EXPECT_EQ(info.levels[3].line_size, 64);
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EXPECT_EQ(info.levels[3].tlb_entries, 8192);
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EXPECT_EQ(info.levels[3].partitioning, 1);
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}
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// http://users.atw.hu/instlatx64/AuthenticAMD0630F81_K15_Godavari_CPUID.txt
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TEST(CpuidX86Test, AMD_K15)
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{
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g_fake_cpu->SetLeaves({
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{{0x00000000, 0}, Leaf{0x0000000D, 0x68747541, 0x444D4163, 0x69746E65}},
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{{0x00000001, 0}, Leaf{0x00630F81, 0x00040800, 0x3E98320B, 0x178BFBFF}},
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{{0x00000007, 0}, Leaf{0x00000000, 0x00000000, 0x00000000, 0x00000000}},
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{{0x80000000, 0}, Leaf{0x8000001E, 0x68747541, 0x444D4163, 0x69746E65}},
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{{0x80000001, 0}, Leaf{0x00630F81, 0x10000000, 0x0FEBBFFF, 0x2FD3FBFF}},
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{{0x80000002, 0}, Leaf{0x20444D41, 0x372D3841, 0x4B303736, 0x64615220}},
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{{0x80000003, 0}, Leaf{0x206E6F65, 0x202C3752, 0x43203031, 0x75706D6F}},
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{{0x80000004, 0}, Leaf{0x43206574, 0x7365726F, 0x2B433420, 0x00204736}},
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{{0x80000005, 0}, Leaf{0xFF40FF18, 0xFF40FF30, 0x10040140, 0x60030140}},
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});
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const auto info = GetX86Info();
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EXPECT_STREQ(info.vendor, "AuthenticAMD");
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EXPECT_EQ(info.family, 0x15);
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EXPECT_EQ(info.model, 0x38);
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EXPECT_EQ(info.stepping, 0x01);
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EXPECT_EQ(GetX86Microarchitecture(&info),
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X86Microarchitecture::AMD_BULLDOZER);
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char brand_string[49];
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FillX86BrandString(brand_string);
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EXPECT_STREQ(brand_string, "AMD A8-7670K Radeon R7, 10 Compute Cores 4C+6G ");
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}
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// TODO(user): test what happens when xsave/osxsave are not present.
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// TODO(user): test what happens when xmm/ymm/zmm os support are not
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// present.
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} // namespace
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} // namespace cpu_features
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