path: root/src/usr/diag/attn/ipl/attn.C

/* IBM_PROLOG_BEGIN_TAG                                                   */
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/* $Source: src/usr/diag/attn/ipl/attn.C $                                */
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/* OpenPOWER HostBoot Project                                             */
/*                                                                        */
/* Contributors Listed Below - COPYRIGHT 2014,2018                        */
/* [+] International Business Machines Corp.                              */
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/* Licensed under the Apache License, Version 2.0 (the "License");        */
/* you may not use this file except in compliance with the License.       */
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/* distributed under the License is distributed on an "AS IS" BASIS,      */
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/* IBM_PROLOG_END_TAG                                                     */

/**
 * @file attn.C
 *
 * @brief HBATTN utility function definitions.
 */

#include "ipl/attnsvc.H"
#include "common/attnprd.H"
#include "common/attnops.H"
#include "common/attnlist.H"
#include "common/attntrace.H"
#include "common/attntarget.H"
#include "common/attnproc.H"
#include "common/attnmem.H"
#include "diag/attn/attnreasoncodes.H"
#include <util/singleton.H>
#include <errl/errlmanager.H>
#include <targeting/common/targetservice.H>
#include <targeting/common/utilFilter.H>

// Custom compile configs
#include <config.h>

#ifdef CONFIG_ENABLE_CHECKSTOP_ANALYSIS
  #include "ipl/attnfilereg.H"
  #include <diag/prdf/prdfPnorFirDataReader.H>
#endif

using namespace std;
using namespace PRDF;
using namespace TARGETING;
using namespace Util;
using namespace ERRORLOG;

namespace ATTN
{

errlHndl_t startService()
{
    return Singleton<Service>::instance().start();
}

errlHndl_t stopService()
{
    return Singleton<Service>::instance().stop();
}

errlHndl_t checkForIplAttentions()
{
    errlHndl_t err = NULL;

    assert(!Singleton<Service>::instance().running());

    TargetHandleList     list;
    uint8_t              l_useAllProcs = 0;
    TARGETING::Target   *l_MasterProcTarget = NULL;
    TARGETING::Target   *l_sys = NULL;


    // ------------------------------------------------
    // NOTE: ATTN code overrides TARGETING code for
    //       testing purposes. However for this case
    //       of getting an attribute, we can just
    //       modify the attribute for testing.
    // ------------------------------------------------

    // We have an ATTRIBUTE that indicates all procs
    // or just the master proc.
    TARGETING::targetService().getTopLevelTarget( l_sys );
    assert(l_sys != NULL);
    l_sys->tryGetAttr<ATTR_ATTN_CHK_ALL_PROCS>(l_useAllProcs);

    getTargetService().masterProcChipTargetHandle(
                                          l_MasterProcTarget);

    // Do we want to check ALL procs ?
    if (0 == l_useAllProcs)
    {
        list.push_back(l_MasterProcTarget);
    } // end if just master proc
    else
    {
        getTargetService().getAllChips(list, TYPE_PROC);
    } // end else ALL procs


    TargetHandleList::iterator tit = list.begin();

    ATTN_TRACE("checkForIplAttentions: %d chips", list.size() );
    while(tit != list.end())
    {
        err = Singleton<Service>::instance().handleAttentions(*tit);

        if(err)
        {
            errlCommit(err, ATTN_COMP_ID);
        }

        tit = list.erase(tit);
    }

    // ====================================================================
    // PRD and HW procedures use an attribute to associate errors
    // together.  If we still see that 'active' when done checking
    // attentions, we are suppose to build an error log with a
    // matching PLID so the istep fails.  Then hopefully people
    // look at the other error log with the same PLID and not this
    // one since that is the real error.
    // ====================================================================
    // NOTE: There could be multiple PLIDs set on different targets
    //       So we may need to commit some elogs and pass back one.
    // ====================================================================

    errlHndl_t l_plidElog = nullptr;

    // Iterate all targets.
    for ( TargetIterator trgt = TARGETING::targetService().begin();
          trgt != TARGETING::targetService().end(); ++trgt )
    {
        uint32_t l_plid = 0;

        // Check for non-zero value in PLID attribute.
        if ( (*trgt)->tryGetAttr<ATTR_PRD_HWP_PLID>(l_plid) && (0 != l_plid) )
        {
            ATTN_SLOW( "ATTR_PRD_HWP_PLID found on 0x%08x with value 0x%08x",
                       get_huid(*trgt), l_plid );

            // In the case where there is more than one target with this
            // attribute, commit the previous error log.
            if ( nullptr != l_plidElog )
            {
                errlCommit( l_plidElog, ATTN_COMP_ID );
            }

            // Create a new error log and link the PLID.
            l_plidElog = new ErrlEntry( ERRL_SEV_UNRECOVERABLE,
                                        ATTN_CHK_IPL_ATTNS_MODULE,
                                        ATTN_SEE_HW_ERROR,
                                        get_huid(*trgt), l_plid );
            l_plidElog->plid(l_plid);

            // Clear the attribute.
            (*trgt)->setAttr<ATTR_PRD_HWP_PLID>( 0 );
        }
    }

    // ====================================================================

    return l_plidElog;
}

#ifdef CONFIG_ENABLE_CHECKSTOP_ANALYSIS

errlHndl_t checkForCSAttentions()
{
    ATTN_SLOW("Checking for checkstop attentions");

    errlHndl_t errl = NULL;

    assert(!Singleton<Service>::instance().running());

    do
    {
        // Read register data from PNOR into memory.
        PnorFirDataReader & firData = PnorFirDataReader::getPnorFirDataReader();
        bool validData;
        errl = firData.readPnor( validData );
        if ( NULL != errl )
        {
            ATTN_ERR("PnorFirDataReader::readPnor() failed");
            break;
        }

        // Check if there was valid data in PNOR.
        if ( !validData )
        {
            // Nothing to do, exit quietly.
            ATTN_SLOW("No PNOR data found, nothing to analyze.");
            break;
        }

        // Install File scom implementation
        FileRegSvc fileRegs;
        fileRegs.installScomImpl();

        TARGETING::Target   *l_sys = NULL;
        TARGETING::targetService().getTopLevelTarget( l_sys );
        assert(l_sys != NULL);
        // Indicate to PRD that we are doing chkstop analysis
        // on saved FIR data so you can read regs without HW issues.
        uint8_t l_iplAnalysis = CHKSTOP_ANALYSIS_ON_STARTUP_ANALYZING_CHECKSTOP;
        bool l_set =
             l_sys->trySetAttr<ATTR_CHKSTOP_ANALYSIS_ON_STARTUP>(l_iplAnalysis);
        ATTN_SLOW("Checkstop attribute set for PRD:%d", l_set);

        // Process the checkstop attention
        errl = Singleton<Service>::instance().processCheckstop();
        if ( NULL != errl )
        {
            firData.addFfdc( errl );
            errlCommit( errl, ATTN_COMP_ID );
        }

        // Ensure we don't leave analysis attribute set
        l_iplAnalysis = CHKSTOP_ANALYSIS_ON_STARTUP_NOT_ANALYZING_DEFAULT;
        l_sys->trySetAttr<ATTR_CHKSTOP_ANALYSIS_ON_STARTUP>(l_iplAnalysis);

        // Uninstall File scom implementation.
        Singleton<ScomImpl>::instance().installScomImpl();

        // Analysis is complete. Clear the PNOR data.
        errl = firData.clearPnor();
        if ( NULL != errl )
        {
            ATTN_ERR("PnorFirDataReader::clearPnor() failed");
            break;
        }

    } while (0);

    ATTN_SLOW("checkForCSAttentions complete");

    return errl;
}

#endif // CONFIG_ENABLE_CHECKSTOP_ANALYSIS

}