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Brazos.cpp
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#include <stdio.h>
#include <stdlib.h>
#include "Signal.h"
#ifdef _WIN32
#include <windows.h>
#include "OlsApi.h"
#endif
#ifdef __linux
#include "cpuPrimitives.h"
#include <string.h>
#endif
#include "Processor.h"
#include "Brazos.h"
#include "PCIRegObject.h"
#include "MSRObject.h"
#include "PerformanceCounter.h"
//Brazos class constructor
Brazos::Brazos () {
DWORD eax,ebx,ecx,edx;
DWORD nodes;
DWORD cores;
//Check extended CpuID Information - CPUID Function 0000_0001 reg EAX
if (Cpuid(0x1,&eax,&ebx,&ecx,&edx)!=TRUE) {
printf ("Brazos::Brazos - Fatal error during querying for Cpuid(0x1) instruction.\n");
return;
}
int familyBase = (eax & 0xf00) >> 8;
int model = (eax & 0xf0) >> 4;
int stepping = eax & 0xf;
int familyExtended = ((eax & 0xff00000) >> 20)+familyBase;
int modelExtended = ((eax & 0xf0000) >> 12)+model; /* family 14h: modelExtended is valid */
//Check Brand ID and Package type - CPUID Function 8000_0001 reg EBX
if (Cpuid(0x80000001,&eax,&ebx,&ecx,&edx)!=TRUE) {
printf ("Brazos::Brazos - Fatal error during querying for Cpuid(0x80000001) instruction.\n");
return;
}
int brandId=(ebx & 0xffff);
int processorModel=(brandId >> 4) & 0x7f;
int string1=(brandId >> 11) & 0xf;
int string2=(brandId & 0xf);
int pkgType=(ebx >> 28);
//Sets processor Specs
setSpecFamilyBase (familyBase);
setSpecModel (model);
setSpecStepping (stepping);
setSpecFamilyExtended (familyExtended);
setSpecModelExtended (modelExtended);
setSpecBrandId (brandId);
setSpecProcessorModel (processorModel);
setSpecString1 (string1);
setSpecString2 (string2);
setSpecPkgType (pkgType);
setBoostStates (0);
setMaxSlots(4);
//Brazos platform will always contain one node per system, since it has no Hypertransport Link.
//Maybe can change in the future.
nodes=1;
//Check how many physical cores are present - CPUID Function 8000_0008 reg ECX
if (Cpuid(0x80000008, &eax, &ebx, &ecx, &edx) != TRUE) {
printf(
"Brazos::Brazos- Fatal error during querying for Cpuid(0x80000008) instruction.\n");
return;
}
cores = (ecx & 0xff) + 1; /* cores per package */
setProcessorNodes(nodes);
setProcessorCores(cores);
setPowerStates(8);
setProcessorIdentifier(PROCESSOR_14H_FAMILY);
setProcessorStrId("Family 14h (Zacate/Ontario) Processor");
}
/*
* Static methods to allow external Main to detect current configuration status
* without instantiating an object. This method that detects if the system
* has a processor supported by this module
*/
bool Brazos::isProcessorSupported () {
DWORD eax;
DWORD ebx;
DWORD ecx;
DWORD edx;
//TODO: remove to avoid simulation
//return true;
//Check base CpuID information
if (Cpuid(0x0,&eax,&ebx,&ecx,&edx)!=TRUE) return false;
//Checks if eax is 0x6. It determines the largest CPUID function available
//Family 14h returns eax=0x6
if (eax!=0x6) return false;
//Check "AuthenticAMD" string
if ((ebx!=0x68747541) || (ecx!=0x444D4163) || (edx!=0x69746E65)) return false;
//Check extended CpuID Information - CPUID Function 0000_0001 reg EAX
if (Cpuid(0x1,&eax,&ebx,&ecx,&edx)!=TRUE) return false;
int familyBase = (eax & 0xf00) >> 8;
int familyExtended = ((eax & 0xff00000) >> 20)+familyBase;
if (familyExtended!=0x14) return false;
//Detects a Family 14h processor, i.e. Zacate/Ontario/G-series
return true;
}
void Brazos::showFamilySpecs() {
printf ("Not yet implemented.\n");
}
//Miscellaneous function inherited by Processor abstract class and that
//needs to be reworked for family 10h
float Brazos::convertVIDtoVcore(DWORD curVid) {
/*How to calculate VID from Vcore.
Serial VID Interface is simple to calculate. Family 14h uses only Serial VID
To obtain vcore from VID you need to do:
vcore = 1,55 – (VID * 0.0125)
The inverse formula to obtain VID from vcore is:
vid = (1.55-vcore)/0.0125
*/
float curVcore;
if (curVid >= 0x7c)
curVcore = 0;
else
curVcore = (float) (1.550 - (0.0125 * curVid));
return curVcore;
}
DWORD Brazos::convertVcoretoVID (float vcore) {
DWORD vid;
vid=round(((1.55-vcore)/0.0125));
return vid;
}
DWORD Brazos::convertFDtoFreq (float did) {
return (int)(maxCPUFrequency()/(float)did);
}
void Brazos::convertFreqtoFD(DWORD freq, float *did) {
/*Needs to calculate the approximate frequency using DID decimal
value.
For family 14h processor the right formula is:
(cfr. BKDG for AMD Family 14h, doc #43710 rev 3.00 - page 364)
freq = maxCPUFrequency / DID
The inverse formula is trivial:
DID = maxCPUFrequency / freq;
Then approximate to next higher quarter of point.
*/
float quarters;
*did=maxCPUFrequency()/(float)freq;
quarters=ceil((float)*did / 0.25f);
*did=quarters*0.25f;
//TODO: Remove this debug code:
//printf (" setFrequency - did to obtain specified frequency: %0.2f\n", *did);
//printf (" setFrequency - frequency obtained: %d\n", convertFDtoFreq (*did));
return;
}
//-----------------------setVID-----------------------------
//Overloads abstract class setVID to allow per-core personalization
void Brazos::setVID (PState ps, DWORD vid) {
MSRObject *msrObject;
if ((vid>minVID()) || (vid<maxVID())) {
printf ("Brazos.cpp: VID Allowed range %d-%d\n", minVID(), maxVID());
return;
}
msrObject=new MSRObject();
if (!msrObject->readMSR(BASE_14H_PSTATEMSR+ps.getPState(), getMask ())) {
printf ("Brazos.cpp: unable to read MSR\n");
free (msrObject);
return;
}
//To set VID, base offset is 9 bits and value is 7 bit wide.
msrObject->setBitsLow(9,7,vid);
//TODO: remove printf and comment to avoid simulation
/*printf (" setVID simulation\n");
printf (" vid=%d simulation\n", vid);
printf (" Low msrRegister is 0x%x\n",msrObject->getBitsLow(0,0,32));*/
if (!msrObject->writeMSR()) {
printf ("Brazos.cpp: unable to write MSR\n");
free (msrObject);
return;
}
free (msrObject);
return;
}
//-----------------------setDID-----------------------------
//Overloads abstract Processor method to allow per-core personalization
void Brazos::setDID(PState ps, float did) {
MSRObject *msrObject;
int didMSD, didLSD;
if ((did < 1) || (did > 26.5)) {
printf("Brazos.cpp: DID Allowed range any value between 1.00 - 26.50 \n");
return;
}
msrObject = new MSRObject();
if (!msrObject->readMSR(BASE_14H_PSTATEMSR + ps.getPState(), getMask())) {
printf("Brazos.cpp: unable to read MSR\n");
free(msrObject);
return;
}
//To set DID, we need to split the integer part and the decimal part
didMSD=(int)did;
didLSD=ceil((did-(float)didMSD)/0.25f);
msrObject->setBitsLow(4, 5, didMSD-1);
msrObject->setBitsLow(0, 4, didLSD);
//TODO: remove printf and comment to avoid simulation
/* printf (" setDID simulation\n");
printf (" didMSD=%d\n", didMSD);
printf (" didLSD=%d\n", didLSD);
printf (" Low msrRegister is 0x%x\n",msrObject->getBitsLow(0,0,32));*/
if (!msrObject->writeMSR()) {
printf("Brazos.cpp: unable to write MSR\n");
free(msrObject);
return;
}
free(msrObject);
return;
}
//-----------------------getVID-----------------------------
DWORD Brazos::getVID (PState ps) {
MSRObject *msrObject;
DWORD vid;
msrObject=new MSRObject ();
if (!msrObject->readMSR(BASE_14H_PSTATEMSR+ps.getPState(), getMask())) {
printf ("Brazos.cpp::getVID - unable to read MSR\n");
free (msrObject);
return false;
}
//Returns data for the first cpu in cpuMask.
//VID is stored after 9 bits of offset and is 7 bits wide
vid=msrObject->getBitsLow(0, 9, 7);
free (msrObject);
return vid;
}
//-----------------------getDID-----------------------------
float Brazos::getDID (PState ps) {
MSRObject *msrObject;
DWORD didMSD, didLSD;
msrObject=new MSRObject ();
if (!msrObject->readMSR(BASE_14H_PSTATEMSR+ps.getPState(), getMask())) {
printf ("Brazos.cpp::getDID - unable to read MSR\n");
free (msrObject);
return false;
}
//Returns data for the first cpu in cpuMask (cpu 0)
//DID is stored after 6 bits of offset and is 3 bits wide
didMSD=msrObject->getBitsLow(0, 4, 5);
didLSD=msrObject->getBitsLow(0, 0, 4);
free (msrObject);
return didMSD + (didLSD*0.25f) + 1;
}
//-----------------------setFrequency-----------------------------
void Brazos::setFrequency (PState ps, DWORD freq) {
float did;
convertFreqtoFD (freq, &did);
setDID (ps, did);
return;
}
//-----------------------setVCore-----------------------------
void Brazos::setVCore (PState ps, float vcore) {
DWORD vid;
vid=convertVcoretoVID (vcore);
//Check if VID is below maxVID value set by the processor.
//If it is, then there are no chances the processor will accept it and
//we reply with an error
if (vid<maxVID()) {
printf ("Unable to set vcore: %0.4fV exceeds maximum allowed vcore (%0.4fV)\n", vcore, convertVIDtoVcore(maxVID()));
return;
}
//Again we che if VID is above minVID value set by processor.
if (vid>minVID()) {
printf ("Unable to set vcore: %0.4fV is below minimum allowed vcore (%0.4fV)\n", vcore, convertVIDtoVcore(minVID()));
return;
}
setVID (ps,vid);
return;
}
//-----------------------getFrequency-----------------------------
DWORD Brazos::getFrequency (PState ps) {
float curDid;
DWORD curFreq;
curDid=getDID (ps);
curFreq=convertFDtoFreq(curDid);
return curFreq;
}
//-----------------------getVCore-----------------------------
float Brazos::getVCore(PState ps) {
DWORD curVid;
float curVcore;
curVid = getVID(ps);
curVcore = convertVIDtoVcore(curVid);
return curVcore;
}
//PStates enable/disable/peek
void Brazos::pStateDisable (PState ps) {
MSRObject *msrObject;
msrObject=new MSRObject();
if (!msrObject->readMSR(BASE_14H_PSTATEMSR+ps.getPState(), getMask ())) {
printf ("Brazos.cpp::pStateDisable - unable to read MSR\n");
free (msrObject);
return;
}
//To disable a pstate, base offset is 63 bits (31th bit of edx) and value is 1 bit wide
msrObject->setBitsHigh(31,1,0x0);
if (!msrObject->writeMSR()) {
printf ("Brazos.cpp::pStateDisable - unable to write MSR\n");
free (msrObject);
return;
}
free (msrObject);
return;
}
void Brazos::pStateEnable (PState ps) {
MSRObject *msrObject;
msrObject=new MSRObject();
if (!msrObject->readMSR(BASE_14H_PSTATEMSR+ps.getPState(), getMask ())) {
printf ("Brazos.cpp::pStateEnable - unable to read MSR\n");
free (msrObject);
return;
}
//To disable a pstate, base offset is 63 bits (31th bit of edx) and value is 1 bit wide
msrObject->setBitsHigh(31,1,0x1);
if (!msrObject->writeMSR()) {
printf ("Brazos.cpp:pStateEnable - unable to write MSR\n");
free (msrObject);
return;
}
free (msrObject);
return;
}
bool Brazos::pStateEnabled(PState ps) {
MSRObject *msrObject;
unsigned int status;
msrObject = new MSRObject();
if (!msrObject->readMSR(BASE_14H_PSTATEMSR + ps.getPState(), getMask())) {
printf("Brazos.cpp::pStateEnabled - unable to read MSR\n");
free(msrObject);
return false;
}
//To peek a pstate, base offset is 63 bits (31th bit of edx) and value is 1 bit wide
//We consider just the first cpu in cpuMask
status = msrObject->getBitsHigh(0, 31, 1);
free(msrObject);
if (status == 0)
return false;
else
return true;
}
void Brazos::setMaximumPState (PState ps) {
PCIRegObject *pciRegObject;
pciRegObject=new PCIRegObject ();
if (!pciRegObject->readPCIReg(PCI_DEV_NORTHBRIDGE, PCI_FUNC_MISC_CONTROL_3, 0xdc, getNodeMask())) {
printf ("Brazos.cpp::setMaximumPState - unable to read PCI register\n");
free (pciRegObject);
return;
}
/*
* Maximum pstate is stored in PCI register with
* device PCI_DEV_NORTHBRIDGE
* function PC_FUNC_MISC_CONTROL_3
* register 0xdc
* bits from 8 to 10
*/
pciRegObject->setBits(8,3,ps.getPState());
if (!pciRegObject->writePCIReg()) {
printf ("Brazos.cpp::setMaximumPState - unable to write PCI register\n");
free (pciRegObject);
return;
}
free (pciRegObject);
return;
}
PState Brazos::getMaximumPState () {
PCIRegObject *pciRegObject;
PState pState (0);
pciRegObject = new PCIRegObject();
if (!pciRegObject->readPCIReg(PCI_DEV_NORTHBRIDGE, PCI_FUNC_MISC_CONTROL_3, 0xdc, getNodeMask())) {
printf ("Brazos.cpp::getMaximumPState - unable to read PCI register\n");
free (pciRegObject);
return 0;
}
/*
* Maximum pstate is stored in PCI register with
* device PCI_DEV_NORTHBRIDGE
* function PC_FUNC_MISC_CONTROL_3
* register 0xdc
* bits from 8 to 10
*/
pState.setPState(pciRegObject->getBits(0, 8 ,3));
free (pciRegObject);
return pState;
}
void Brazos::forcePState (PState ps) {
MSRObject *msrObject;
msrObject=new MSRObject();
if (!msrObject->readMSR(BASE_PSTATE_CTRL_REG, getMask ())) {
printf ("Brazos.cpp::forcePState - unable to read MSR\n");
free (msrObject);
return;
}
//To force a pstate, we act on setting the first 3 bits of register. All other bits must be zero
msrObject->setBitsLow(0,32,0x0);
msrObject->setBitsHigh(0,32,0x0);
msrObject->setBitsLow(0,3,ps.getPState());
if (!msrObject->writeMSR()) {
printf ("Brazos.cpp::forcePState - unable to write MSR\n");
free (msrObject);
return;
}
free (msrObject);
return;
}
//minVID is reported per-node, so selected core is always discarded
DWORD Brazos::minVID () {
MSRObject *msrObject;
DWORD minVid;
msrObject=new MSRObject;
if (!msrObject->readMSR(COFVID_STATUS_REG, getMask(0, selectedNode))) {
printf ("Brazos::minVID - Unable to read MSR\n");
free (msrObject);
return false;
}
//minVid is stored in COFVID_STATUS_REG in high half register (edx)
//from bit 10 to bit 16
minVid=msrObject->getBitsHigh(0,10,7);
free (msrObject);
//If minVid==0, then there's no minimum vid.
//Since the register is 7-bit wide, then 127 is
//the maximum value allowed.
if (getPVIMode()) {
//Parallel VID mode, allows minimum vcore VID up to 0x5d
if (minVid==0) return 0x5d; else return minVid;
} else {
//Serial VID mode, allows minimum vcore VID up to 0x7b
if (minVid==0) return 0x7b; else return minVid;
}
}
//maxVID is reported per-node, so selected core is always discarded
DWORD Brazos::maxVID() {
MSRObject *msrObject;
DWORD maxVid;
msrObject = new MSRObject;
if (!msrObject->readMSR(COFVID_STATUS_REG, getMask(0, selectedNode))) {
printf("Brazos::maxVID - Unable to read MSR\n");
free(msrObject);
return false;
}
//maxVid is stored in COFVID_STATUS_REG in high half register (edx)
//from bit 3 to bit 9
maxVid = msrObject->getBitsHigh(0, 3, 7);
free(msrObject);
//If maxVid==0, then there's no maximum set in hardware
if (maxVid == 0)
return 0;
else
return maxVid;
}
//StartupPState is reported per-node. Selected core is discarded
DWORD Brazos::startupPState () {
MSRObject *msrObject;
DWORD pstate;
msrObject = new MSRObject();
if (!msrObject->readMSR(COFVID_STATUS_REG, getMask(0, selectedNode))) {
printf("Brazos.cpp::startupPState unable to read MSR\n");
free(msrObject);
return false;
}
//Returns data for the first cpu in cpuMask (cpu 0)
//StartupPState has base offset at 0 bits of high register (edx) and is 3 bit wide
pstate = msrObject->getBitsHigh(0, 0, 3);
free(msrObject);
return pstate;
}
DWORD Brazos::maxCPUFrequency() {
//return (0+0x10)*100; //Returns 1600 Mhz processor --- simulated stub!!!
MSRObject *msrObject;
DWORD maxCPUFid;
msrObject = new MSRObject();
if (!msrObject->readMSR(COFVID_STATUS_REG, getMask(0, selectedNode))) {
printf("Brazos.cpp::maxCPUFrequency unable to read MSR\n");
free(msrObject);
return false;
}
//Returns data for the first cpu in cpuMask (cpu 0)
//maxCPUFid has base offset at 17 bits of high register (edx) and is 6 bits wide
maxCPUFid = msrObject->getBitsHigh(0, 17, 6);
free(msrObject);
return (maxCPUFid+0x10) * 100;
}
//Temperature registers ------------------
DWORD Brazos::getTctlRegister (void) {
PCIRegObject *pciRegObject;
DWORD temp;
pciRegObject = new PCIRegObject();
if (!pciRegObject->readPCIReg(PCI_DEV_NORTHBRIDGE, PCI_FUNC_MISC_CONTROL_3,
0xa4, getNodeMask())) {
printf("Brazos.cpp::getTctlRegister - unable to read PCI register\n");
free(pciRegObject);
return 0;
}
/*
* Tctl data is stored in PCI register with
* device PCI_DEV_NORTHBRIDGE
* function PC_FUNC_MISC_CONTROL_3
* register 0xa4
* bits from 21 to 31
*/
temp = pciRegObject->getBits(0, 21, 11);
free(pciRegObject);
return temp >> 3;
}
DWORD Brazos::getTctlMaxDiff() {
PCIRegObject *pciRegObject;
DWORD maxDiff;
pciRegObject = new PCIRegObject();
if (!pciRegObject->readPCIReg(PCI_DEV_NORTHBRIDGE, PCI_FUNC_MISC_CONTROL_3,
0xa4, getNodeMask())) {
printf("Brazos.cpp::getTctlMaxDiff unable to read PCI register\n");
free(pciRegObject);
return 0;
}
/*
* Tctl Max diff data is stored in PCI register with
* device PCI_DEV_NORTHBRIDGE
* function PC_FUNC_MISC_CONTROL_3
* register 0xa4
* bits from 5 to 6
*/
maxDiff = pciRegObject->getBits(0, 5, 2);
free(pciRegObject);
return maxDiff;
}
//Voltage Ramping time
DWORD Brazos::getRampTime (void) {
PCIRegObject *pciRegObject;
DWORD slamTime;
pciRegObject = new PCIRegObject();
if (!pciRegObject->readPCIReg(PCI_DEV_NORTHBRIDGE, PCI_FUNC_MISC_CONTROL_3,
0xd8, getNodeMask())) {
printf("Brazos.cpp::getRampTime unable to read PCI register\n");
free(pciRegObject);
return 0;
}
/*
* voltage ramptime is stored in PCI register with
* device PCI_DEV_NORTHBRIDGE
* function PC_FUNC_MISC_CONTROL_3
* register 0xd8
* bits from 4 to 6
*/
slamTime = pciRegObject->getBits(0, 4, 3);
free(pciRegObject);
return slamTime;
}
void Brazos::setRampTime (DWORD slmTime) {
PCIRegObject *pciRegObject;
if (slmTime<0 || slmTime >7) {
printf ("Invalid Ramp Time: must be between 0 and 7\n");
return;
}
pciRegObject = new PCIRegObject();
if (!pciRegObject->readPCIReg(PCI_DEV_NORTHBRIDGE, PCI_FUNC_MISC_CONTROL_3, 0xd4,
getNodeMask())) {
printf("Brazos::setRampTime - unable to read PCI Register\n");
free(pciRegObject);
return;
}
/*
* voltage ramptime is stored in PCI register with
* device PCI_DEV_NORTHBRIDGE
* function PC_FUNC_MISC_CONTROL_3
* register 0xd8
* bits from 4 to 6
*/
pciRegObject->setBits(4, 3, slmTime);
if (!pciRegObject->writePCIReg()) {
printf("Brazos.cpp::setRampTime - unable to write PCI register\n");
free(pciRegObject);
return;
}
free (pciRegObject);
return;
}
// AltVID - HTC Thermal features
bool Brazos::HTCisCapable () {
PCIRegObject *pciRegObject;
DWORD isCapable;
pciRegObject = new PCIRegObject();
if (!pciRegObject->readPCIReg(PCI_DEV_NORTHBRIDGE, PCI_FUNC_MISC_CONTROL_3,
0xe8, getNodeMask())) {
printf("Brazos::HTCisCapable - unable to read PCI register\n");
free(pciRegObject);
return false;
}
/*
* HTC-capable bit is stored in PCI register with
* device PCI_DEV_NORTHBRIDGE
* function PC_FUNC_MISC_CONTROL_3
* register 0xe8
* bit 10
*/
isCapable = pciRegObject->getBits(0, 10, 1);
free(pciRegObject);
return (bool) isCapable;
}
bool Brazos::HTCisEnabled() {
PCIRegObject *pciRegObject;
DWORD isEnabled;
pciRegObject = new PCIRegObject();
if (!pciRegObject->readPCIReg(PCI_DEV_NORTHBRIDGE, PCI_FUNC_MISC_CONTROL_3,
0x64, getNodeMask())) {
printf("Brazos::HTCisEnabled - unable to read PCI register\n");
free(pciRegObject);
return false;
}
/*
* HTC-enabled bit is stored in PCI register with
* device PCI_DEV_NORTHBRIDGE
* function PC_FUNC_MISC_CONTROL_3
* register 0x64
* bit 0
*/
isEnabled = pciRegObject->getBits(0, 0, 1);
free(pciRegObject);
return (bool) isEnabled;
}
bool Brazos::HTCisActive() {
PCIRegObject *pciRegObject;
DWORD isActive;
pciRegObject = new PCIRegObject();
if (!pciRegObject->readPCIReg(PCI_DEV_NORTHBRIDGE, PCI_FUNC_MISC_CONTROL_3,
0x64, getNodeMask())) {
printf("Brazos::HTCisActive - unable to read PCI register\n");
free(pciRegObject);
return false;
}
/*
* HTC active bit is stored in PCI register with
* device PCI_DEV_NORTHBRIDGE
* function PC_FUNC_MISC_CONTROL_3
* register 0x64
* bit 4
*/
isActive = pciRegObject->getBits(0, 4, 1);
free(pciRegObject);
return (bool) isActive;
}
bool Brazos::HTChasBeenActive () {
PCIRegObject *pciRegObject;
DWORD hasBeenActivated;
pciRegObject = new PCIRegObject();
if (!pciRegObject->readPCIReg(PCI_DEV_NORTHBRIDGE, PCI_FUNC_MISC_CONTROL_3,
0x64, getNodeMask())) {
printf("Brazos::HTChasBeenActive - unable to read PCI register\n");
free(pciRegObject);
return false;
}
/*
* HTC has been activated bit is stored in PCI register with
* device PCI_DEV_NORTHBRIDGE
* function PC_FUNC_MISC_CONTROL_3
* register 0x64
* bit 5
*/
hasBeenActivated = pciRegObject->getBits(0, 5, 1);
free(pciRegObject);
return (bool) hasBeenActivated;
}
DWORD Brazos::HTCTempLimit() {
PCIRegObject *pciRegObject;
DWORD tempLimit;
pciRegObject = new PCIRegObject();
if (!pciRegObject->readPCIReg(PCI_DEV_NORTHBRIDGE, PCI_FUNC_MISC_CONTROL_3,
0x64, getNodeMask())) {
printf("Brazos::HTCTempLimit - unable to read PCI register\n");
free(pciRegObject);
return false;
}
/*
* HTC temperature limit is stored in PCI register with
* device PCI_DEV_NORTHBRIDGE
* function PC_FUNC_MISC_CONTROL_3
* register 0x64
* bits from 16 to 22
*/
tempLimit = 52 + (pciRegObject->getBits(0, 16, 7) >> 1);
free(pciRegObject);
return tempLimit;
}
bool Brazos::HTCSlewControl() {
PCIRegObject *pciRegObject;
DWORD slewControl;
pciRegObject = new PCIRegObject();
if (!pciRegObject->readPCIReg(PCI_DEV_NORTHBRIDGE, PCI_FUNC_MISC_CONTROL_3,
0x64, getNodeMask())) {
printf("Brazos::HTCSlewControl - unable to read PCI register\n");
free(pciRegObject);
return false;
}
/*
* HTC slew Control bit is stored in PCI register with
* device PCI_DEV_NORTHBRIDGE
* function PC_FUNC_MISC_CONTROL_3
* register 0x64
* bit 23
*/
slewControl = pciRegObject->getBits(0, 23, 1);
free(pciRegObject);
return (bool) slewControl;
}
DWORD Brazos::HTCHystTemp() {
PCIRegObject *pciRegObject;
DWORD hystTemp;
pciRegObject = new PCIRegObject();
if (!pciRegObject->readPCIReg(PCI_DEV_NORTHBRIDGE, PCI_FUNC_MISC_CONTROL_3,
0x64, getNodeMask())) {
printf("Brazos::HTCHystTemp - unable to read PCI register\n");
free(pciRegObject);
return false;