mirror of
https://github.com/hrydgard/ppsspp.git
synced 2024-11-24 05:49:58 +00:00
132 lines
3.1 KiB
C++
132 lines
3.1 KiB
C++
// Copyright (C) 2003 Dolphin Project.
|
|
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, version 2.0.
|
|
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License 2.0 for more details.
|
|
|
|
// A copy of the GPL 2.0 should have been included with the program.
|
|
// If not, see http://www.gnu.org/licenses/
|
|
|
|
// Official SVN repository and contact information can be found at
|
|
// http://code.google.com/p/dolphin-emu/
|
|
|
|
#include "ppsspp_config.h"
|
|
#if PPSSPP_ARCH(RISCV64)
|
|
|
|
#include "Common/Common.h"
|
|
#include "Common/CPUDetect.h"
|
|
#include "Common/StringUtils.h"
|
|
#include "Common/File/FileUtil.h"
|
|
#include "Common/Data/Encoding/Utf8.h"
|
|
#include <cstring>
|
|
#include <sstream>
|
|
|
|
// Only Linux platforms have /proc/cpuinfo
|
|
#if defined(__linux__)
|
|
const char procfile[] = "/proc/cpuinfo";
|
|
// https://www.kernel.org/doc/Documentation/ABI/testing/sysfs-devices-system-cpu
|
|
const char syscpupresentfile[] = "/sys/devices/system/cpu/present";
|
|
|
|
std::string GetCPUString() {
|
|
//TODO
|
|
std::string cpu_string;
|
|
cpu_string = "Unknown";
|
|
return cpu_string;
|
|
}
|
|
|
|
std::string GetCPUBrandString() {
|
|
//TODO
|
|
std::string brand_string;
|
|
brand_string = "Unknown";
|
|
return brand_string;
|
|
}
|
|
|
|
int GetCoreCount()
|
|
{
|
|
std::string line, marker = "processor\t: ";
|
|
int cores = 1;
|
|
|
|
std::string presentData;
|
|
bool presentSuccess = File::ReadFileToString(true, Path(syscpupresentfile), presentData);
|
|
std::istringstream presentFile(presentData);
|
|
|
|
if (presentSuccess) {
|
|
int low, high, found;
|
|
std::getline(presentFile, line);
|
|
found = sscanf(line.c_str(), "%d-%d", &low, &high);
|
|
if (found == 1)
|
|
return 1;
|
|
if (found == 2)
|
|
return high - low + 1;
|
|
}
|
|
|
|
std::string procdata;
|
|
if (!File::ReadFileToString(true, Path(procfile), procdata))
|
|
return 1;
|
|
std::istringstream file(procdata);
|
|
|
|
while (std::getline(file, line))
|
|
{
|
|
if (line.find(marker) != std::string::npos)
|
|
++cores;
|
|
}
|
|
|
|
return cores;
|
|
}
|
|
#endif
|
|
|
|
CPUInfo cpu_info;
|
|
|
|
CPUInfo::CPUInfo() {
|
|
Detect();
|
|
}
|
|
|
|
// Detects the various cpu features
|
|
void CPUInfo::Detect()
|
|
{
|
|
// Set some defaults here
|
|
HTT = false;
|
|
#if PPSSPP_ARCH(RISCV64)
|
|
OS64bit = true;
|
|
CPU64bit = true;
|
|
Mode64bit = true;
|
|
#else
|
|
OS64bit = false;
|
|
CPU64bit = false;
|
|
Mode64bit = false;
|
|
#endif
|
|
vendor = VENDOR_OTHER;
|
|
logical_cpu_count = 1;
|
|
|
|
// Get the information about the CPU
|
|
#if !defined(__linux__)
|
|
num_cores = 1;
|
|
#else // __linux__
|
|
truncate_cpy(cpu_string, GetCPUString().c_str());
|
|
truncate_cpy(brand_string, GetCPUBrandString().c_str());
|
|
num_cores = GetCoreCount();
|
|
#endif
|
|
}
|
|
|
|
// Turn the cpu info into a string we can show
|
|
std::string CPUInfo::Summarize()
|
|
{
|
|
std::string sum;
|
|
if (num_cores == 1)
|
|
sum = StringFromFormat("%s, %i core", cpu_string, num_cores);
|
|
else
|
|
sum = StringFromFormat("%s, %i cores", cpu_string, num_cores);
|
|
if (CPU64bit) sum += ", 64-bit";
|
|
|
|
//TODO: parse "isa : rv64imafdc" from /proc/cpuinfo
|
|
|
|
return sum;
|
|
}
|
|
|
|
#endif // PPSSPP_ARCH(RISCV64)
|