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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/sbefw/core/ipl.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 */
#include "fapi2.H"
#include "sberegaccess.H"
#include "sbe_sp_intf.H"
#include "sbeFFDC.H"
#include "ipl.H"
#include "sbeConsole.H"
#include "sbeglobals.H"
#include "p9n2_perv_scom_addresses.H"
using namespace fapi2;
sbeRole g_sbeRole = SBE_ROLE_MASTER;
uint64_t G_ring_save[8] = {0, 0, 0, 0, 0, 0, 0, 0};
// Globals
// TODO: via RTC 123602 This global needs to move to a class that will store the
// SBE FFDC.
fapi2::ReturnCode g_iplFailRc = FAPI2_RC_SUCCESS;
bool isSystemCheckstop()
{
bool checkstop = false;
fapi2::buffer<uint64_t> attnReg = 0;
ReturnCode fapiRc = FAPI2_RC_SUCCESS;
plat_target_handle_t hndl;
fapiRc = getscom_abs_wrap(&hndl,
P9N2_PERV_ATTN_INTERRUPT_REG,
attnReg.pointer());
if( fapiRc == FAPI2_RC_SUCCESS )
{
checkstop = attnReg.getBit<2>();
}
return checkstop;
}
//----------------------------------------------------------------------------
// @note This is the responsibilty of caller to verify major/minor
// number before calling this function
ReturnCode sbeExecuteIstep (const uint8_t i_major, const uint8_t i_minor)
{
#define SBE_FUNC "sbeExecuteIstep "
SBE_INFO(SBE_FUNC"Major number:0x%x minor number:0x%x",
i_major, i_minor );
ReturnCode rc = FAPI2_RC_SUCCESS;
for(size_t entry = 0; entry < istepTable.len; entry++)
{
auto istepTableEntry = &istepTable.istepMajorArr[entry];
if(( i_major == istepTableEntry->istepMajorNum ) &&
( i_minor <= istepTableEntry->len ))
{
auto istepMap = &istepTableEntry->istepMinorArr[i_minor-1];
if(istepMap->istepWrapper != NULL)
{
rc = istepMap->istepWrapper(istepMap->istepHwp);
}
break;
}
}
if(rc != FAPI2_RC_SUCCESS)
{
SBE_ERROR( SBE_FUNC" FAPI RC:0x%08X", rc);
(void)SbeRegAccess::theSbeRegAccess().stateTransition(
SBE_DUMP_FAILURE_EVENT);
}
else
{
(void)SbeRegAccess::theSbeRegAccess().updateSbeStep(i_major, i_minor);
}
return rc;
#undef SBE_FUNC
}
//----------------------------------------------------------------------------
void sbeDoContinuousIpl()
{
#define SBE_FUNC "sbeDoContinuousIpl "
SBE_ENTER(SBE_FUNC);
ReturnCode rc = FAPI2_RC_SUCCESS;
do
{
// Set SBE state as IPLing
(void)SbeRegAccess::theSbeRegAccess().stateTransition(
SBE_PLCK_EVENT);
// Run isteps
for(size_t entry = 0; entry < istepTable.len; entry++)
{
auto istepTableEntry = &istepTable.istepMajorArr[entry];
for(size_t step = 1; step <= istepTableEntry->len; step++)
{
auto istepMap = &istepTableEntry->istepMinorArr[step-1];
if(istepMap->istepWrapper != NULL)
{
SBE_MSG_CONSOLE("istep ", istepTableEntry->istepMajorNum, ".", step);
rc = istepMap->istepWrapper(istepMap->istepHwp);
}
bool checkstop = isSystemCheckstop();
if((rc != FAPI2_RC_SUCCESS) || checkstop )
{
SBE_ERROR(SBE_FUNC"Failed istep execution in plck mode: "
"Major: %d, Minor: %d",
istepTableEntry->istepMajorNum, step);
uint32_t secRc = checkstop ? SBE_SEC_SYSTEM_CHECKSTOP:
SBE_SEC_GENERIC_FAILURE_IN_EXECUTION;
captureAsyncFFDC(SBE_PRI_GENERIC_EXECUTION_FAILURE,
secRc);
// exit outer loop as well
entry = istepTable.len;
break;
}
(void)SbeRegAccess::theSbeRegAccess().updateSbeStep(
istepTableEntry->istepMajorNum,
step);
// Check if we reached runtime
if(SBE_STATE_RUNTIME ==
SbeRegAccess::theSbeRegAccess().getSbeState())
{
// Exit outer loop as well
entry = istepTable.len;
break;
}
}
}
} while(false);
// Store l_rc in a global variable that will be a part of the SBE FFDC
g_iplFailRc = rc;
SBE_EXIT(SBE_FUNC);
#undef SBE_FUNC
}
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