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testing linux cpu info

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This commit is contained in:
amerhifi 2019-05-20 22:37:25 -07:00
parent 5fbb788492
commit 19a7d91aef
1 changed files with 41 additions and 5 deletions
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46
libraries/platform/src/LinuxPlatform.cpp
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@ -9,15 +9,51 @@
#include "LinuxPlatform.h"
#include "platformJsonKeys.h"
#include <GPUIdent.h>
#include <thread>
using namespace platform;
static void getLCpuId( uint32_t* p, uint32_t ax )
{
#if Q_OS_LINUX
__asm __volatile
( "movl %%ebx, %%esi\n\t"
"cpuid\n\t"
"xchgl %%ebx, %%esi"
: "=a" (p[0]), "=S" (p[1]),
"=c" (p[2]), "=d" (p[3])
: "0" (ax)
);
#endif
}
void LinuxInstance::enumerateCpu() {
json cpu = {};
uint32_t cpuInfo[4]={0,0,0,0};
char CPUBrandString[16];
char CPUModelString[16];
char CPUClockString[16];
uint32_t nExIds;
getLCpuId(cpuInfo, 0x80000000);
nExIds = cpuInfo[0];
for (uint32_t i = 0x80000000; i <= nExIds; ++i) {
getLCpuId(cpuInfo, i);
// Interpret CPU brand string
if (i == 0x80000002) {
memcpy(CPUBrandString, cpuInfo, sizeof(cpuInfo));
} else if (i == 0x80000003) {
memcpy(CPUModelString, cpuInfo, sizeof(cpuInfo));
} else if (i == 0x80000004) {
memcpy(CPUClockString, cpuInfo, sizeof(cpuInfo));
}
}
cpu["cpuBrand"] = "";
cpu["cpuModel"] = "";
cpu["cpuClockSpeed"] = "";
cpu["cpuNumCores"] = "";
cpu["cpuBrand"] = CPUBrandString;
cpu["cpuModel"] = CPUModelString;
cpu["cpuClockSpeed"] = CPUClockString;
cpu["cpuNumCores"] = std::thread::hardware_concurrency();
_cpu.push_back(cpu);
}