summaryrefslogtreecommitdiffstats
path: root/src/common/x64/cpu_detect.cpp
diff options
context:
space:
mode:
authorJames Rowe <jroweboy@gmail.com>2020-01-18 02:41:18 +0100
committerJames Rowe <jroweboy@gmail.com>2020-01-18 02:41:18 +0100
commit4512a6bbfcf360fc826b5cc9188a224bbedc5d62 (patch)
tree9f24bd665a4c91f98a1058a21f0831e9a6f0025a /src/common/x64/cpu_detect.cpp
parentMerge pull request #3316 from TotalCaesar659/linux-headbar-icon (diff)
downloadyuzu-4512a6bbfcf360fc826b5cc9188a224bbedc5d62.tar
yuzu-4512a6bbfcf360fc826b5cc9188a224bbedc5d62.tar.gz
yuzu-4512a6bbfcf360fc826b5cc9188a224bbedc5d62.tar.bz2
yuzu-4512a6bbfcf360fc826b5cc9188a224bbedc5d62.tar.lz
yuzu-4512a6bbfcf360fc826b5cc9188a224bbedc5d62.tar.xz
yuzu-4512a6bbfcf360fc826b5cc9188a224bbedc5d62.tar.zst
yuzu-4512a6bbfcf360fc826b5cc9188a224bbedc5d62.zip
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 @@
// Refer to the license.txt file included.
#include <cstring>
-#include <string>
-#include <thread>
#include "common/common_types.h"
#include "common/x64/cpu_detect.h"
@@ -51,8 +49,6 @@ namespace Common {
static CPUCaps Detect() {
CPUCaps caps = {};
- caps.num_cores = std::thread::hardware_concurrency();
-
// Assumes the CPU supports the CPUID instruction. Those that don't would likely not support
// yuzu at all anyway
@@ -70,12 +66,6 @@ static CPUCaps Detect() {
__cpuid(cpu_id, 0x80000000);
u32 max_ex_fn = cpu_id[0];
- if (!strcmp(caps.brand_string, "GenuineIntel"))
- caps.vendor = CPUVendor::INTEL;
- else if (!strcmp(caps.brand_string, "AuthenticAMD"))
- caps.vendor = CPUVendor::AMD;
- else
- caps.vendor = CPUVendor::OTHER;
// Set reasonable default brand string even if brand string not available
strcpy(caps.cpu_string, caps.brand_string);
@@ -96,15 +86,9 @@ static CPUCaps Detect() {
caps.sse4_1 = true;
if ((cpu_id[2] >> 20) & 1)
caps.sse4_2 = true;
- if ((cpu_id[2] >> 22) & 1)
- caps.movbe = true;
if ((cpu_id[2] >> 25) & 1)
caps.aes = true;
- if ((cpu_id[3] >> 24) & 1) {
- caps.fxsave_fxrstor = true;
- }
-
// AVX support requires 3 separate checks:
// - Is the AVX bit set in CPUID?
// - Is the XSAVE bit set in CPUID?
@@ -129,8 +113,6 @@ static CPUCaps Detect() {
}
}
- caps.flush_to_zero = caps.sse;
-
if (max_ex_fn >= 0x80000004) {
// Extract CPU model string
__cpuid(cpu_id, 0x80000002);
@@ -144,14 +126,8 @@ static CPUCaps Detect() {
if (max_ex_fn >= 0x80000001) {
// Check for more features
__cpuid(cpu_id, 0x80000001);
- if (cpu_id[2] & 1)
- caps.lahf_sahf_64 = true;
- if ((cpu_id[2] >> 5) & 1)
- caps.lzcnt = true;
if ((cpu_id[2] >> 16) & 1)
caps.fma4 = true;
- if ((cpu_id[3] >> 29) & 1)
- caps.long_mode = true;
}
return caps;
@@ -162,48 +138,4 @@ const CPUCaps& GetCPUCaps() {
return caps;
}
-std::string GetCPUCapsString() {
- auto caps = GetCPUCaps();
-
- std::string sum(caps.cpu_string);
- sum += " (";
- sum += caps.brand_string;
- sum += ")";
-
- if (caps.sse)
- sum += ", SSE";
- if (caps.sse2) {
- sum += ", SSE2";
- if (!caps.flush_to_zero)
- sum += " (without DAZ)";
- }
-
- if (caps.sse3)
- sum += ", SSE3";
- if (caps.ssse3)
- sum += ", SSSE3";
- if (caps.sse4_1)
- sum += ", SSE4.1";
- if (caps.sse4_2)
- sum += ", SSE4.2";
- if (caps.avx)
- sum += ", AVX";
- if (caps.avx2)
- sum += ", AVX2";
- if (caps.bmi1)
- sum += ", BMI1";
- if (caps.bmi2)
- sum += ", BMI2";
- if (caps.fma)
- sum += ", FMA";
- if (caps.aes)
- sum += ", AES";
- if (caps.movbe)
- sum += ", MOVBE";
- if (caps.long_mode)
- sum += ", 64-bit support";
-
- return sum;
-}
-
} // namespace Common