mirror of
https://github.com/memtest86plus/memtest86plus.git
synced 2024-11-23 08:26:23 -06:00
74 lines
1.9 KiB
C
74 lines
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
// Copyright (C) 2020-2022 Martin Whitaker.
|
|
//
|
|
// Derived from an extract of memtest86+ init.c:
|
|
//
|
|
// MemTest86+ V5 Specific code (GPL V2.0)
|
|
// By Samuel DEMEULEMEESTER, sdemeule@memtest.org
|
|
// http://www.canardpc.com - http://www.memtest.org
|
|
// ------------------------------------------------
|
|
// init.c - MemTest-86 Version 3.6
|
|
//
|
|
// Released under version 2 of the Gnu Public License.
|
|
// By Chris Brady
|
|
|
|
#include <stdint.h>
|
|
|
|
#include "cpuid.h"
|
|
#include "cpuinfo.h"
|
|
#include "msr.h"
|
|
#include "pci.h"
|
|
|
|
#include "temperature.h"
|
|
|
|
//------------------------------------------------------------------------------
|
|
// Public Functions
|
|
//------------------------------------------------------------------------------
|
|
|
|
int get_cpu_temperature(void)
|
|
{
|
|
|
|
// Intel CPU
|
|
if (cpuid_info.vendor_id.str[0] == 'G' && cpuid_info.max_cpuid >= 6) {
|
|
if (cpuid_info.dts_pmp & 1) {
|
|
uint32_t msrl, msrh;
|
|
|
|
rdmsr(MSR_IA32_THERM_STATUS, msrl, msrh);
|
|
int Tabs = (msrl >> 16) & 0x7F;
|
|
|
|
rdmsr(MSR_IA32_TEMPERATURE_TARGET, msrl, msrh);
|
|
int Tjunc = (msrl >> 16) & 0x7F;
|
|
|
|
if (Tjunc < 50 || Tjunc > 125) {
|
|
Tjunc = 90;
|
|
}
|
|
return Tjunc - Tabs;
|
|
}
|
|
}
|
|
|
|
// AMD CPU
|
|
if (cpuid_info.vendor_id.str[0] == 'A' && cpuid_info.version.extendedFamily > 0 && cpuid_info.version.extendedFamily < 8) {
|
|
|
|
// Untested yet
|
|
uint32_t rtcr = pci_config_read32(0, 24, 3, 0xA4);
|
|
int raw_temp = (rtcr >> 21) & 0x7FF;
|
|
|
|
return raw_temp / 8;
|
|
|
|
} else if (cpuid_info.vendor_id.str[0] == 'A' && cpuid_info.version.extendedFamily >= 8) {
|
|
|
|
// Grab CPU Temp. for ZEN CPUs using SNM
|
|
uint32_t tval = amd_smn_read(SMN_THM_TCON_CUR_TMP);
|
|
|
|
float offset = 0;
|
|
|
|
if((tval >> 19) & 0x01) {
|
|
offset = -49.0f;
|
|
}
|
|
|
|
return offset + 0.125f * (float)((tval >> 21) & 0x7FF);
|
|
}
|
|
|
|
return 0;
|
|
}
|