/**
* 'Local' core 0 task to enable message-based C1e on it's socket.
*
* @param[in] EntryPoint Timepoint designator.
* @param[in] StdHeader Config Handle for library, services.
* @param[in] CpuEarlyParams Service parameters.
*
*/
VOID
STATIC
EnableMsgC1eOnSocket (
IN VOID *EntryPoint,
IN AMD_CONFIG_PARAMS *StdHeader,
IN AMD_CPU_EARLY_PARAMS *CpuEarlyParams
)
{
MSG_BASED_C1E_FAMILY_SERVICES *FamilyServices;
GetFeatureServicesOfCurrentCore (&MsgBasedC1eFamilyServiceTable, (const VOID **)&FamilyServices, StdHeader);
FamilyServices->InitializeMsgBasedC1e (FamilyServices,
*((UINT64 *) EntryPoint),
&CpuEarlyParams->PlatformConfig,
StdHeader);
}
/**
* Should message-based C1e be enabled
*
* @param[in] PlatformConfig Contains the runtime modifiable feature input data.
* @param[in] StdHeader Config Handle for library, services.
*
* @retval TRUE Message-based C1e is supported.
* @retval FALSE Message-based C1e cannot be enabled.
*
*/
BOOLEAN
STATIC
IsMsgBasedC1eFeatureEnabled (
IN PLATFORM_CONFIGURATION *PlatformConfig,
IN AMD_CONFIG_PARAMS *StdHeader
)
{
BOOLEAN IsEnabled;
UINT32 Socket;
MSG_BASED_C1E_FAMILY_SERVICES *FamilyServices;
ASSERT (PlatformConfig->C1eMode < MaxC1eMode);
IsEnabled = FALSE;
if ((PlatformConfig->C1eMode == C1eModeMsgBased) || (PlatformConfig->C1eMode == C1eModeAuto)) {
ASSERT (PlatformConfig->C1ePlatformData < 0x10000);
ASSERT (PlatformConfig->C1ePlatformData != 0);
if ((PlatformConfig->C1ePlatformData != 0) && (PlatformConfig->C1ePlatformData < 0xFFFE)) {
IsEnabled = TRUE;
if (IsNonCoherentHt1 (StdHeader)) {
IsEnabled = FALSE;
} else {
for (Socket = 0; Socket < GetPlatformNumberOfSockets (); Socket++) {
if (IsProcessorPresent (Socket, StdHeader)) {
GetFeatureServicesOfSocket (&MsgBasedC1eFamilyServiceTable, Socket, (const VOID **)&FamilyServices, StdHeader);
if ((FamilyServices == NULL) || !FamilyServices->IsMsgBasedC1eSupported (FamilyServices, Socket, StdHeader)) {
IsEnabled = FALSE;
break;
}
}
}
}
}
}
return IsEnabled;
}
/**
* Should message-based C1e be enabled
*
* @param[in] PlatformConfig Contains the runtime modifiable feature input data.
* @param[in] StdHeader Config Handle for library, services.
*
* @retval TRUE Message-based C1e is supported.
* @retval FALSE Message-based C1e cannot be enabled.
*
*/
BOOLEAN
STATIC
IsMsgBasedC1eFeatureEnabled (
IN PLATFORM_CONFIGURATION *PlatformConfig,
IN AMD_CONFIG_PARAMS *StdHeader
)
{
UINTN Link;
UINTN LinkCount;
UINT32 Socket;
UINT32 Module;
BOOLEAN IsEnabled;
PCI_ADDR PciAddress;
AGESA_STATUS AgesaStatus;
HT_HOST_FEATS HtHostFeats;
CPU_SPECIFIC_SERVICES *CpuServices;
MSG_BASED_C1E_FAMILY_SERVICES *FamilyServices;
ASSERT (PlatformConfig->C1eMode < MaxC1eMode);
IsEnabled = FALSE;
if (PlatformConfig->C1eMode == C1eModeMsgBased) {
ASSERT (PlatformConfig->C1ePlatformData < 0x10000);
ASSERT (PlatformConfig->C1ePlatformData != 0);
if ((PlatformConfig->C1ePlatformData != 0) && (PlatformConfig->C1ePlatformData < 0xFFFE)) {
IsEnabled = TRUE;
for (Socket = 0; Socket < GetPlatformNumberOfSockets (); Socket++) {
if (IsProcessorPresent (Socket, StdHeader)) {
GetFeatureServicesOfSocket (&MsgBasedC1eFamilyServiceTable, Socket, (CONST VOID **)&FamilyServices, StdHeader);
if ((FamilyServices == NULL) || !FamilyServices->IsMsgBasedC1eSupported (FamilyServices, Socket, StdHeader)) {
IsEnabled = FALSE;
break;
} else {
// If the CPU revision supports message-based C1e, check whether the feature should
// be disabled based on the speed of ncHT links (HT1).
GetCpuServicesOfSocket (Socket, &CpuServices, StdHeader);
for (Module = 0; Module < GetPlatformNumberOfModules (); Module++) {
if (GetPciAddress (StdHeader, Socket, Module, &PciAddress, &AgesaStatus)) {
HtHostFeats.HtHostValue = 0;
for (LinkCount = 0; LinkCount < 8; LinkCount++) {
if (FindHtHostCapability (LinkCount, &PciAddress, StdHeader)) {
CpuServices->GetHtLinkFeatures (CpuServices, &Link, &PciAddress, &HtHostFeats, StdHeader);
if ((HtHostFeats.HtHostFeatures.NonCoherent == 1) && (HtHostFeats.HtHostFeatures.Ht1 == 1)) {
IsEnabled = FALSE;
break;
}
}
}
}
// Exit for (Module = 0; Module < GetPlatformNumberOfModules; Module++)
if (!IsEnabled) {
break;
}
}
}
}
// Exit for (Socket = 0; Socket < GetPlatformNumberOfSockets (); Socket++)
if (!IsEnabled) {
break;
}
}
}
}
return IsEnabled;
}