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Diffstat (limited to 'src/common/x64/cpu_detect.cpp')
-rw-r--r--src/common/x64/cpu_detect.cpp68
1 files changed, 0 insertions, 68 deletions
diff --git a/src/common/x64/cpu_detect.cpp b/src/common/x64/cpu_detect.cpp
index 2dfcd39c8..c9349a6b4 100644
--- a/src/common/x64/cpu_detect.cpp
+++ b/src/common/x64/cpu_detect.cpp
@@ -3,8 +3,6 @@
3// Refer to the license.txt file included. 3// Refer to the license.txt file included.
4 4
5#include <cstring> 5#include <cstring>
6#include <string>
7#include <thread>
8#include "common/common_types.h" 6#include "common/common_types.h"
9#include "common/x64/cpu_detect.h" 7#include "common/x64/cpu_detect.h"
10 8
@@ -51,8 +49,6 @@ namespace Common {
51static CPUCaps Detect() { 49static CPUCaps Detect() {
52 CPUCaps caps = {}; 50 CPUCaps caps = {};
53 51
54 caps.num_cores = std::thread::hardware_concurrency();
55
56 // Assumes the CPU supports the CPUID instruction. Those that don't would likely not support 52 // Assumes the CPU supports the CPUID instruction. Those that don't would likely not support
57 // yuzu at all anyway 53 // yuzu at all anyway
58 54
@@ -70,12 +66,6 @@ static CPUCaps Detect() {
70 __cpuid(cpu_id, 0x80000000); 66 __cpuid(cpu_id, 0x80000000);
71 67
72 u32 max_ex_fn = cpu_id[0]; 68 u32 max_ex_fn = cpu_id[0];
73 if (!strcmp(caps.brand_string, "GenuineIntel"))
74 caps.vendor = CPUVendor::INTEL;
75 else if (!strcmp(caps.brand_string, "AuthenticAMD"))
76 caps.vendor = CPUVendor::AMD;
77 else
78 caps.vendor = CPUVendor::OTHER;
79 69
80 // Set reasonable default brand string even if brand string not available 70 // Set reasonable default brand string even if brand string not available
81 strcpy(caps.cpu_string, caps.brand_string); 71 strcpy(caps.cpu_string, caps.brand_string);
@@ -96,15 +86,9 @@ static CPUCaps Detect() {
96 caps.sse4_1 = true; 86 caps.sse4_1 = true;
97 if ((cpu_id[2] >> 20) & 1) 87 if ((cpu_id[2] >> 20) & 1)
98 caps.sse4_2 = true; 88 caps.sse4_2 = true;
99 if ((cpu_id[2] >> 22) & 1)
100 caps.movbe = true;
101 if ((cpu_id[2] >> 25) & 1) 89 if ((cpu_id[2] >> 25) & 1)
102 caps.aes = true; 90 caps.aes = true;
103 91
104 if ((cpu_id[3] >> 24) & 1) {
105 caps.fxsave_fxrstor = true;
106 }
107
108 // AVX support requires 3 separate checks: 92 // AVX support requires 3 separate checks:
109 // - Is the AVX bit set in CPUID? 93 // - Is the AVX bit set in CPUID?
110 // - Is the XSAVE bit set in CPUID? 94 // - Is the XSAVE bit set in CPUID?
@@ -129,8 +113,6 @@ static CPUCaps Detect() {
129 } 113 }
130 } 114 }
131 115
132 caps.flush_to_zero = caps.sse;
133
134 if (max_ex_fn >= 0x80000004) { 116 if (max_ex_fn >= 0x80000004) {
135 // Extract CPU model string 117 // Extract CPU model string
136 __cpuid(cpu_id, 0x80000002); 118 __cpuid(cpu_id, 0x80000002);
@@ -144,14 +126,8 @@ static CPUCaps Detect() {
144 if (max_ex_fn >= 0x80000001) { 126 if (max_ex_fn >= 0x80000001) {
145 // Check for more features 127 // Check for more features
146 __cpuid(cpu_id, 0x80000001); 128 __cpuid(cpu_id, 0x80000001);
147 if (cpu_id[2] & 1)
148 caps.lahf_sahf_64 = true;
149 if ((cpu_id[2] >> 5) & 1)
150 caps.lzcnt = true;
151 if ((cpu_id[2] >> 16) & 1) 129 if ((cpu_id[2] >> 16) & 1)
152 caps.fma4 = true; 130 caps.fma4 = true;
153 if ((cpu_id[3] >> 29) & 1)
154 caps.long_mode = true;
155 } 131 }
156 132
157 return caps; 133 return caps;
@@ -162,48 +138,4 @@ const CPUCaps& GetCPUCaps() {
162 return caps; 138 return caps;
163} 139}
164 140
165std::string GetCPUCapsString() {
166 auto caps = GetCPUCaps();
167
168 std::string sum(caps.cpu_string);
169 sum += " (";
170 sum += caps.brand_string;
171 sum += ")";
172
173 if (caps.sse)
174 sum += ", SSE";
175 if (caps.sse2) {
176 sum += ", SSE2";
177 if (!caps.flush_to_zero)
178 sum += " (without DAZ)";
179 }
180
181 if (caps.sse3)
182 sum += ", SSE3";
183 if (caps.ssse3)
184 sum += ", SSSE3";
185 if (caps.sse4_1)
186 sum += ", SSE4.1";
187 if (caps.sse4_2)
188 sum += ", SSE4.2";
189 if (caps.avx)
190 sum += ", AVX";
191 if (caps.avx2)
192 sum += ", AVX2";
193 if (caps.bmi1)
194 sum += ", BMI1";
195 if (caps.bmi2)
196 sum += ", BMI2";
197 if (caps.fma)
198 sum += ", FMA";
199 if (caps.aes)
200 sum += ", AES";
201 if (caps.movbe)
202 sum += ", MOVBE";
203 if (caps.long_mode)
204 sum += ", 64-bit support";
205
206 return sum;
207}
208
209} // namespace Common 141} // namespace Common