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#pragma once
#include "jconf.hpp"
#include "xmrstak/misc/console.hpp"
#include "xmrstak/jconf.hpp"
#include "xmrstak/misc/configEditor.hpp"
#include "xmrstak/params.hpp"
#include "xmrstak/backend/cryptonight.hpp"
#include <string>
#ifdef _WIN32
#include <windows.h>
#else
#include <unistd.h>
#endif // _WIN32
namespace xmrstak
{
namespace cpu
{
// Mask bits between h and l and return the value
// This enables us to put in values exactly like in the manual
// For example EBX[31:22] is get_masked(cpu_info[1], 31, 22)
inline int32_t get_masked(int32_t val, int32_t h, int32_t l)
{
val &= (0x7FFFFFFF >> (31-(h-l))) << l;
return val >> l;
}
class autoAdjust
{
public:
bool printConfig()
{
size_t hashMemSizeKB;
size_t halfHashMemSizeKB;
if(::jconf::inst()->IsCurrencyMonero())
{
hashMemSizeKB = MONERO_MEMORY / 1024u;
halfHashMemSizeKB = hashMemSizeKB / 2u;
}
else
{
hashMemSizeKB = AEON_MEMORY / 1024u;
halfHashMemSizeKB = hashMemSizeKB / 2u;
}
configEditor configTpl{};
// load the template of the backend config into a char variable
const char *tpl =
#include "./config.tpl"
;
configTpl.set( std::string(tpl) );
std::string conf;
if(!detectL3Size() || L3KB_size < halfHashMemSizeKB || L3KB_size > (halfHashMemSizeKB * 2048u))
{
if(L3KB_size < halfHashMemSizeKB || L3KB_size > (halfHashMemSizeKB * 2048))
printer::inst()->print_msg(L0, "Autoconf failed: L3 size sanity check failed - %u KB.", L3KB_size);
conf += std::string(" { \"low_power_mode\" : false, \"no_prefetch\" : true, \"affine_to_cpu\" : false },\n");
printer::inst()->print_msg(L0, "Autoconf FAILED. Create config for a single thread. Please try to add new ones until the hashrate slows down.");
}
else
{
printer::inst()->print_msg(L0, "Autoconf L3 size detected at %u KB.", L3KB_size);
detectCPUConf();
printer::inst()->print_msg(L0, "Autoconf core count detected as %u on %s.", corecnt,
linux_layout ? "Linux" : "Windows");
uint32_t aff_id = 0;
for(uint32_t i=0; i < corecnt; i++)
{
bool double_mode;
if(L3KB_size <= 0)
break;
double_mode = L3KB_size / hashMemSizeKB > (int32_t)(corecnt-i);
conf += std::string(" { \"low_power_mode\" : ");
conf += std::string(double_mode ? "true" : "false");
conf += std::string(", \"no_prefetch\" : true, \"affine_to_cpu\" : ");
conf += std::to_string(aff_id);
conf += std::string(" },\n");
if(!linux_layout || old_amd)
{
aff_id += 2;
if(aff_id >= corecnt)
aff_id = 1;
}
else
aff_id++;
if(double_mode)
L3KB_size -= hashMemSizeKB * 2u;
else
L3KB_size -= hashMemSizeKB;
}
}
configTpl.replace("CPUCONFIG",conf);
configTpl.write(params::inst().configFileCPU);
printer::inst()->print_msg(L0, "CPU configuration stored in file '%s'", params::inst().configFileCPU.c_str());
return true;
}
private:
bool detectL3Size()
{
int32_t cpu_info[4];
char cpustr[13] = {0};
::jconf::cpuid(0, 0, cpu_info);
memcpy(cpustr, &cpu_info[1], 4);
memcpy(cpustr+4, &cpu_info[3], 4);
memcpy(cpustr+8, &cpu_info[2], 4);
if(strcmp(cpustr, "GenuineIntel") == 0)
{
::jconf::cpuid(4, 3, cpu_info);
if(get_masked(cpu_info[0], 7, 5) != 3)
{
printer::inst()->print_msg(L0, "Autoconf failed: Couln't find L3 cache page.");
return false;
}
L3KB_size = ((get_masked(cpu_info[1], 31, 22) + 1) * (get_masked(cpu_info[1], 21, 12) + 1) *
(get_masked(cpu_info[1], 11, 0) + 1) * (cpu_info[2] + 1)) / 1024;
return true;
}
else if(strcmp(cpustr, "AuthenticAMD") == 0)
{
::jconf::cpuid(0x80000006, 0, cpu_info);
L3KB_size = get_masked(cpu_info[3], 31, 18) * 512;
::jconf::cpuid(1, 0, cpu_info);
if(get_masked(cpu_info[0], 11, 8) < 0x17) //0x17h is Zen
old_amd = true;
return true;
}
else
{
printer::inst()->print_msg(L0, "Autoconf failed: Unknown CPU type: %s.", cpustr);
return false;
}
}
void detectCPUConf()
{
#ifdef _WIN32
SYSTEM_INFO info;
GetSystemInfo(&info);
corecnt = info.dwNumberOfProcessors;
linux_layout = false;
#else
corecnt = sysconf(_SC_NPROCESSORS_ONLN);
linux_layout = true;
#endif // _WIN32
}
int32_t L3KB_size = 0;
uint32_t corecnt;
bool old_amd = false;
bool linux_layout;
};
} // namespace cpu
} // namepsace xmrstak
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