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/*
* @file: ppe/sbe/sbefw/sbecmdcntrldmt.C
*
* @brief This file contains the Core State Control Messages
*
*/
#include "sbecmdcntrldmt.H"
#include "sbetrace.H"
#include "sbe_build_info.H"
#include "sbeHostMsg.H"
#include "sbeHostUtils.H"
#include "sbe_sp_intf.H"
#include "fapi2.H"
#include "p9_sbe_check_master_stop15.H"
#include "p9_perv_scom_addresses.H"
using namespace fapi2;
////////////////////////////////////////////////////////////////////
//Static initialization of the Dmt Pk timer
PkTimer g_sbe_pk_dmt_timer;
// Global Flag to indicate Dmt Timer Expiry
bool g_SbeDmtTimerExpired = false;
/////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////
void sbeDmtPkExpiryCallback(void *)
{
#define SBE_FUNC "sbeDmtPkExpiryCallback"
SBE_INFO(SBE_FUNC" DMT Callback Timer has expired..Checkstop the system ");
g_SbeDmtTimerExpired = true;
// check stop the system
uint32_t l_status = SBE_PCB_PIB_ERROR_NONE;
l_status = putscom_abs (PERV_N3_LOCAL_FIR_OR, N3_FIR_CORE_CHECKSTOP_BIT);
if(SBE_PCB_PIB_ERROR_NONE != l_status)
{
// Scom failed
SBE_ERROR(SBE_FUNC "PutScom failed for REG PERV_N3_LOCAL_FIR");
// TODO - Store the response in Async Response
// RTC:149074
}
#undef SBE_FUNC
}
/////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////
uint32_t sbeStartCntlDmt()
{
#define SBE_FUNC "sbeStartCntlDmt"
uint32_t l_rc = SBE_SEC_OPERATION_SUCCESSFUL;
int l_pkRc = 0;
ReturnCode l_fapiRc = FAPI2_RC_SUCCESS;
g_SbeDmtTimerExpired = false;
do
{
// Fetch the Timer Value and Start a Pk Timer
uint64_t l_timerVal = 0;
l_rc = sbeReadPsu2SbeMbxReg(SBE_HOST_PSU_MBOX_REG1,
(sizeof(l_timerVal)/sizeof(uint64_t)),
&l_timerVal);
if(SBE_SEC_OPERATION_SUCCESSFUL != l_rc)
{
SBE_ERROR(SBE_FUNC" Failed to extract SBE_HOST_PSU_MBOX_REG1");
break;
}
// Attach Callback
PkTimerCallback l_callback = &sbeDmtPkExpiryCallback;
// Create Timer with the above value
l_pkRc = pk_timer_create(&g_sbe_pk_dmt_timer, l_callback, NULL);
if(l_pkRc)
{
SBE_ERROR(SBE_FUNC" Pk Timer Create failed, RC=[%d]", l_pkRc);
l_rc = SBE_SEC_OS_FAILURE;
break;
}
// Schedule the timer
l_pkRc = pk_timer_schedule(&g_sbe_pk_dmt_timer,
PK_MILLISECONDS((uint32_t)l_timerVal));
if(l_pkRc)
{
SBE_ERROR(SBE_FUNC" Pk Timer Schedule failed, RC=[%d]", l_pkRc);
l_rc = SBE_SEC_OS_FAILURE;
break;
}
l_rc = sbeWriteSbe2PsuMbxReg(SBE_HOST_PSU_MBOX_REG4,
(uint64_t*)(&g_sbeSbe2PsuRespHdr),
(sizeof(g_sbeSbe2PsuRespHdr)/sizeof(uint64_t)),
true);
if(SBE_SEC_OPERATION_SUCCESSFUL != l_rc)
{
SBE_ERROR(SBE_FUNC" Failed to write to "
"SBE_HOST_PSU_MBOX_REG4");
break;
}
// Fetch the master core
Target<TARGET_TYPE_PROC_CHIP > l_procTgt = plat_getChipTarget();
// Fetch the MASTER_CORE attribute
uint8_t l_coreId = 0;
FAPI_ATTR_GET(fapi2::ATTR_MASTER_CORE,l_procTgt,l_coreId);
// Construct the Master Core Target
fapi2::Target<fapi2::TARGET_TYPE_CORE > l_coreTgt(
(uint64_t)l_coreId);
// Call Hwp p9_sbe_check_master_stop15 and loop
// Go around a loop till you get FAPI2_RC_SUCCESS
do
{
l_fapiRc = p9_sbe_check_master_stop15(l_coreTgt);
//Conversion is required here, since ReturnCode doesn't support
//comparision '!=' or '=='
//TODO RTC:149021
uint32_t l_rcFapi = l_fapiRc;
if( (l_rcFapi != fapi2::RC_CHECK_MASTER_STOP15_PENDING) &&
(l_rcFapi != FAPI2_RC_SUCCESS))
{
SBE_ERROR(SBE_FUNC" p9_sbe_check_master_stop15 "
"returned failure");
// Async Response to be stored
// RTC:149074
break;
}
// Only for Pending and Success case
if(RC_CHECK_MASTER_STOP15_PENDING != l_rcFapi) // Success
{
// indicate the Host via Bit SBE_SBE2PSU_DOORBELL_SET_BIT2
// that Stop15 exit
l_rc = sbeSetSbe2PsuDbBitX(SBE_SBE2PSU_DOORBELL_SET_BIT2);
if(l_rc)
{
SBE_ERROR(SBE_FUNC " Failed to Write "
"SBE_SBE2PSU_DOORBELL_SET_BIT2");
}
break; // Breakout from do..while()
}
// Stop 15 Pending Case
pk_sleep(PK_MILLISECONDS(SBE_DMT_SLEEP_INTERVAL));
}while(false == g_SbeDmtTimerExpired); // Inner Loop
}while(0); // Outer loop
return l_rc;
#undef SBE_FUNC
}
/////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////
uint32_t sbeStopCntlDmt()
{
#define SBE_FUNC "sbeStopCntlDmt"
uint32_t l_rc = SBE_SEC_OPERATION_SUCCESSFUL;
int l_pkRc = 0;
do
{
// Stop the Pk Timer - There is no call to check if the timer is
// still alive, if i call cancel on already expired timer, it
// returns error code.
if(false == g_SbeDmtTimerExpired)
{
SBE_DEBUG(SBE_FUNC " DmTimer hasn't expired yet.. stop it");
l_pkRc = pk_timer_cancel(&g_sbe_pk_dmt_timer);
if(l_pkRc)
{
// Check again if the failure is because of the timer already
// expired, in that case don't need to send any error response
// to hostboot
if(false == g_SbeDmtTimerExpired)
{
SBE_ERROR(SBE_FUNC " Pk Timer Cancel failed, RC=[%d]",
l_pkRc);
l_rc = SBE_SEC_OS_FAILURE;
}
break;
}
}
l_rc = sbeWriteSbe2PsuMbxReg(SBE_HOST_PSU_MBOX_REG4,
(uint64_t*)(&g_sbeSbe2PsuRespHdr),
(sizeof(g_sbeSbe2PsuRespHdr)/sizeof(uint64_t)),
true);
if(SBE_SEC_OPERATION_SUCCESSFUL != l_rc)
{
SBE_ERROR(SBE_FUNC" Failed to write to SBE_HOST_PSU_MBOX_REG4");
break;
}
}while(0);
return l_rc;
#undef SBE_FUNC
}
/////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////
uint32_t sbeControlDeadmanTimer (uint8_t *i_pArg)
{
#define SBE_FUNC "sbeControlDeadmanTimer"
SBE_ENTER(SBE_FUNC);
uint32_t l_rc = SBE_SEC_OPERATION_SUCCESSFUL;
do
{
// Send Ack to Host via SBE_SBE2PSU_DOORBELL_SET_BIT1
// This util method will check internally on the mbox0 register if ACK
// is requested.
l_rc = sbeAcknowledgeHost();
if(l_rc)
{
SBE_ERROR(SBE_FUNC " Failed to Sent Ack to Host over "
"SBE_SBE2PSU_DOORBELL_SET_BIT1");
break;
}
if(g_sbePsu2SbeCmdReqHdr.flags & SBE_PSU_FLAGS_START_DMT)
{
l_rc = sbeStartCntlDmt();
if(SBE_SEC_OPERATION_SUCCESSFUL != l_rc)
{
SBE_ERROR(SBE_FUNC " Failed sbeStartCntlDmt");
break;
}
}
else if(g_sbePsu2SbeCmdReqHdr.flags & SBE_PSU_FLAGS_STOP_DMT)
{
l_rc = sbeStopCntlDmt();
if(SBE_SEC_OPERATION_SUCCESSFUL != l_rc)
{
SBE_ERROR(SBE_FUNC " Failed sbeStopCntlDmt");
break;
}
}
else
{
SBE_DEBUG(SBE_DEBUG" Not a valid command ");
l_rc = SBE_SEC_COMMAND_NOT_SUPPORTED;
}
}while(0); // End of do-while
SBE_EXIT(SBE_FUNC);
return l_rc;
#undef SBE_FUNC
}
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