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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/diag/attn/common/attnproc.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2014,2017 */
/* [+] 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 attnproc.C
*
* @brief HBATTN Processor attention operations function definitions.
*/
#include <errl/errlmanager.H>
#include "common/attnproc.H"
#include "common/attnlist.H"
#include "common/attntrace.H"
#include "common/attntarget.H"
#include "common/attnmem.H"
using namespace std;
using namespace PRDF;
using namespace TARGETING;
using namespace ERRORLOG;
namespace ATTN
{
errlHndl_t ProcOps::query(AttnData & i_attnToCheck, bool & o_active)
{
errlHndl_t err = 0;
uint64_t address = 0, checkbits = 0, scomData = 0;
AttnData l_cenAttnData;
bool l_cenAttnFound = false;
MemOps & memOps = getMemOps();
GFIR::getAddress(i_attnToCheck.attnType, address);
GFIR::getCheckbits(i_attnToCheck.attnType, checkbits);
err = getScom(i_attnToCheck.targetHndl, address, scomData);
ATTN_TRACE("procOpsQuery:Addr:%016llx ChkBits:%016llx Data:%016llx",
address, checkbits, scomData);
if (!err)
{
if (scomData & checkbits)
{
o_active = true;
// NIMBUS has no memory buffers to look at
TARGETING::Target *l_MasterProcTarget = NULL;
getTargetService().masterProcChipTargetHandle(
l_MasterProcTarget);
ATTR_MODEL_type l_model = l_MasterProcTarget->getAttr<ATTR_MODEL>();
if ( MODEL_CUMULUS == l_model )
{
// Attempt resolving to Centaur
// If we do, the attention target/type gets set.
// Else we will leave as proc attention
for ( uint32_t l_mc=0;
((l_mc < MC::numChiplets) && (false == l_cenAttnFound));
l_mc++)
{
if ( scomData & ((MC::firstChiplet) >> l_mc) )
{
// Will handle the first attention
l_cenAttnFound = memOps.resolve( i_attnToCheck, l_mc);
// i_attnToCheck gets altered to membuf
// if we found valid attention there
} // end if this MC chiplet is active
} // end for on MC chiplets
} // end if CUMULUS
} // end if active attention
else
{
o_active = false;
}
}
return err;
}
errlHndl_t ProcOps::resolveIpoll(
TargetHandle_t i_proc,
AttentionList & o_attentions)
{
errlHndl_t err = NULL;
uint64_t on = 0;
uint64_t observed = 0;
bool active = false;
AttnData d;
// very unlikely, but look for any
// supported bits on in the
// status register, in case the other
// thread hasn't masked it yet
err = getScom(i_proc, IPOLL_STATUS_REG, on);
if(err)
{
errlCommit(err, ATTN_COMP_ID);
}
// also look for any supported bits on in the
// mask register, indicating that the other thread
// saw the error and masked it.
err = getScom(i_proc, IPOLL::address, observed);
if(err)
{
errlCommit(err, ATTN_COMP_ID);
}
ATTN_TRACE("resolveIpoll: Status:%016llx Mask:%016llx",
on, observed);
for(uint64_t type = INVALID_ATTENTION_TYPE;
type != END_ATTENTION_TYPE;
++type)
{
uint64_t supported = 0;
if(!IPOLL::getCheckbits(type, supported))
{
// this object doesn't support
// this attention type
continue;
}
// analysis should be done if the bit for this
// attention type is either on in the status reg
// or masked in the mask reg
if(!(supported & (on | observed)))
{
ATTN_TRACE("resolveIpoll: Skipping");
continue;
}
d.attnType = static_cast<ATTENTION_VALUE_TYPE>(type);
d.targetHndl = i_proc;
// to be sure, query corresponding GFIR
ATTN_TRACE("rslvIpoll: Qry type :%016llx", d.attnType);
err = query(d, active);
if(err)
{
errlCommit(err, ATTN_COMP_ID);
}
else if(active)
{
o_attentions.add(Attention(d, this));
break;
}
}
return err;
}
errlHndl_t ProcOps::resolve(
TargetHandle_t i_proc,
uint64_t i_typeMask,
AttentionList & o_attentions)
{
errlHndl_t err = 0;
bool active = false;
AttnData d;
d.targetHndl = i_proc;
uint64_t ignored;
ATTN_TRACE("procOps::resolve");
for(uint64_t type = INVALID_ATTENTION_TYPE;
type != END_ATTENTION_TYPE;
++type)
{
if(!enabled())
{
break;
}
ATTN_TRACE("procOps::Validate attn types");
if(!GFIR::getCheckbits(type, ignored))
{
// this object doesn't support
// this attention type
continue;
}
uint64_t mask = 0;
IPOLL::getCheckbits(type, mask);
ATTN_TRACE("procOps::Chkbits type:%016llx mask:%016llx iMask:%016llx",
type, mask, i_typeMask);
if(!(mask & ~i_typeMask))
{
// this attention type is masked
continue;
}
d.attnType = static_cast<ATTENTION_VALUE_TYPE>(type);
ATTN_TRACE("procOps::Query type :%016llx", d.attnType );
err = query(d, active);
if(err)
{
errlCommit(err, ATTN_COMP_ID);
}
else if(active)
{
o_attentions.add(Attention(d, this));
break;
}
}
return err;
}
}
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