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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/sbefw/core/sbes0handler.C $ */
/* */
/* OpenPOWER sbe Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2017,2018 */
/* [+] International Business Machines Corp. */
/* */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
/* You may obtain a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
/* implied. See the License for the specific language governing */
/* permissions and limitations under the License. */
/* */
/* IBM_PROLOG_END_TAG */
/*
* @file: ppe/src/sbefw/sbes0handler.C
*
* @brief This file contains the SBE S0 Handler
*
*/
#include "sbefifo.H"
#include "sbeSpMsg.H"
#include "sbe_sp_intf.H"
#include "sbetrace.H"
#include "sbeFifoMsgUtils.H"
#include "sberegaccess.H"
#include "sbefapiutil.H"
#include "sbecmdiplcontrol.H"
#include "sbecmdmpipl.H"
#include "sbeFFDC.H"
#include "sbes0handler.H"
#include "sbearchregdump.H"
#include "fapi2.H"
#include "p9_perv_scom_addresses.H"
using namespace fapi2;
#ifdef __SBEFW_SEEPROM__
///////////////////////////////////////////////////////////////////////
// @brief sbeHandleS0
//
// @return RC from the function
///////////////////////////////////////////////////////////////////////
uint32_t sbeHandleS0(uint8_t *i_pArg)
{
#define SBE_FUNC " sbeHandleS0 "
SBE_ENTER(SBE_FUNC);
uint32_t rc = SBE_SEC_OPERATION_SUCCESSFUL;
ReturnCode fapiRc = FAPI2_RC_SUCCESS;
do // Do while for both StartMpipl and ContinueMpipl
{
fapiRc = startMpiplIstepsExecute();
if(fapiRc != FAPI2_RC_SUCCESS)
{
rc = SBE_SEC_S0_START_MPIPL_FAILED;
SBE_ERROR(SBE_FUNC "Failed in Start Mpipl S0 Interface");
break;
}
// Collect Architected Register Dump
fapiRc = sbeDumpArchRegs();
if(fapiRc != FAPI2_RC_SUCCESS)
{
rc = SBE_SEC_S0_ARCH_REG_DUMP_FAILED;
SBE_ERROR(SBE_FUNC "Failed to collect ArchRegDump S0 Interface");
break;
}
// TODO - RTC: 190585
//Core and Cache stop Clock
fapiRc = stopClockS0();
if(fapiRc != FAPI2_RC_SUCCESS)
{
rc = SBE_SEC_S0_STOP_CLOCK_FAILED;
SBE_ERROR(SBE_FUNC "Failed in Core/Cache StopClock S0 Interface");
break;
}
sbeRole sbeRole = SbeRegAccess::theSbeRegAccess().isSbeSlave() ?
SBE_ROLE_SLAVE : SBE_ROLE_MASTER;
if(sbeRole == SBE_ROLE_MASTER)
{
fapiRc = continueMpiplIstepsExecute(sbeRole);
if(fapiRc != FAPI2_RC_SUCCESS)
{
rc = SBE_SEC_S0_CONTINUE_MPIPL_FAILED;
SBE_ERROR(SBE_FUNC "Failed in Continue Mpipl S0 Interface, "
"SBE Role[%d]", sbeRole);
break;
}
}
}while(0);
if(rc)
{
// Async Response to be stored
captureAsyncFFDC(SBE_PRI_GENERIC_EXECUTION_FAILURE, rc);
}
SBE_EXIT(SBE_FUNC);
return rc;
#undef SBE_FUNC
}
#endif // #ifdef __SBEFW_SEEPROM__
#ifndef __SBEFW_SEEPROM__
uint32_t clearS0interrupt()
{
#define SBE_FUNC "clearS0interrupt"
SBE_ENTER(SBE_FUNC);
uint32_t rc = FAPI2_RC_SUCCESS;
// Default Mask bit for S0 Innterrupt, bit 49
uint64_t MASK_ALL_AND_MODIFY_BIT = 0xFFFDFFFFFFFFFFFFULL;
do
{
Target<TARGET_TYPE_PROC_CHIP > procTgt = plat_getChipTarget();
uint64_t data;
rc = getscom_abs_wrap (&procTgt, PERV_SB_CS_SCOM, &data);
if( rc )
{
break;
}
data = data & MASK_ALL_AND_MODIFY_BIT;
rc = putscom_abs_wrap (&procTgt, PERV_SB_CS_SCOM, data);
if( rc )
{
break;
}
}while(0);
SBE_EXIT(SBE_FUNC);
return rc;
#undef SBE_FUNC
}
#endif // #ifndef __SBEFW_SEEPROM__
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