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#pragma once
#include "jconf.h"
#include "console.h"
#ifdef _WIN32
#include <windows.h>
#else
#include <unistd.h>
#endif // _WIN32
// 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:
autoAdjust()
{
}
void printConfig()
{
printer::inst()->print_str("The configuration for 'cpu_threads_conf' in your config file is 'null'.\n");
printer::inst()->print_str("The miner evaluates your system and prints a suggestion for the section `cpu_threads_conf` to the terminal.\n");
printer::inst()->print_str("The values are not optimal, please try to tweak the values based on notes in config.txt.\n");
printer::inst()->print_str("Please copy & paste the block within the asterisks to your config.\n\n");
if(!detectL3Size() || L3KB_size < 1024 || L3KB_size > 102400)
{
if(L3KB_size < 1024 || L3KB_size > 102400)
printer::inst()->print_msg(L0, "Autoconf failed: L3 size sanity check failed - %u KB.", L3KB_size);
printer::inst()->print_msg(L0, "Autoconf failed: Printing config for a single thread. Please try to add new ones until the hashrate slows down.");
printer::inst()->print_str("\n**************** Copy&Paste BEGIN ****************\n\n");
printer::inst()->print_str("\"cpu_threads_conf\" :\n[\n");
printer::inst()->print_str(" { \"low_power_mode\" : false, \"no_prefetch\" : true, \"affine_to_cpu\" : false },\n");
printer::inst()->print_str("],\n\n**************** Copy&Paste END ****************\n");
return;
}
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");
printer::inst()->print_str("\n**************** Copy&Paste BEGIN ****************\n\n");
printer::inst()->print_str("\"cpu_threads_conf\" :\n[\n");
uint32_t aff_id = 0;
char strbuf[256];
for(uint32_t i=0; i < corecnt; i++)
{
bool double_mode;
if(L3KB_size <= 0)
break;
double_mode = L3KB_size / 2048 > (int32_t)(corecnt-i);
snprintf(strbuf, sizeof(strbuf), " { \"low_power_mode\" : %s, \"no_prefetch\" : true, \"affine_to_cpu\" : %u },\n",
double_mode ? "true" : "false", aff_id);
printer::inst()->print_str(strbuf);
if(!linux_layout || old_amd)
{
aff_id += 2;
if(aff_id >= corecnt)
aff_id = 1;
}
else
aff_id++;
if(double_mode)
L3KB_size -= 4096;
else
L3KB_size -= 2048;
}
printer::inst()->print_str("],\n\n**************** Copy&Paste END ****************\n");
}
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;
};
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