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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/diag/attn/ipl/attnsvc.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2014,2018 */
/* [+] 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 attnsvc.C
*
* @brief HBATTN background service class function definitions.
*/
#include <sys/msg.h>
#include <errl/errlmanager.H>
#include "ipl/attnsvc.H"
#include "common/attntrace.H"
#include "common/attnprd.H"
#include "common/attnproc.H"
#include "common/attntarget.H"
#include "arch/pirformat.H"
#include "diag/attn/attnreasoncodes.H"
#include <initservice/initserviceif.H> // for hostboot TI
// Custom compile configs
#include <config.h>
using namespace std;
using namespace PRDF;
using namespace TARGETING;
using namespace ERRORLOG;
namespace ATTN
{
errlHndl_t Service::configureInterrupts(
msg_q_t i_q,
ConfigureMode i_mode)
{
errlHndl_t err = NULL;
do
{
// First register for Q
// This will set up the psi host bridge logic for
// lcl_err interrupt on all chips
if(i_mode == UP)
{
err = INTR::registerMsgQ(i_q,
ATTENTION,
INTR::ISN_LCL_ERR);
}
if(err)
{
ATTN_ERR("INTR::registerMsgQ returned error");
break;
}
// enable/disable attentions
err = ServiceCommon::configureInterrupts(i_mode);
if(err)
{
ATTN_ERR("ServiceCommon::configureInterrupts "
"returned error i_mode: 0x%x", i_mode);
break;
}
if(!err && i_mode == DOWN)
{
if(NULL == INTR::unRegisterMsgQ(INTR::LSI_LCL_FIR))
{
ATTN_ERR("INTR did not find LSI: 0x%07x",
INTR::LSI_LCL_FIR);
}
}
} while(0);
return err;
}
void* Service::intrTaskWorker(void * i_svc)
{
// interrupt task loop
Service & svc = *static_cast<Service *>(i_svc);
bool shutdown = false;
msg_t * msg = NULL;
while(true)
{
// wait for a shutdown message or interrupt
shutdown = svc.intrTaskWait(msg);
if(shutdown)
{
break;
}
// got an interrupt. process it
svc.processIntrQMsg(*msg);
}
return NULL;
} // end intrTaskWorker
void * Service::intrTask(void * i_svc)
{
// We need to create the actual thread that will do the work
// and then monitor it for completion.
tid_t l_tid = task_create(&intrTaskWorker, i_svc);
assert( l_tid > 0 );
int l_status = 0;
void * l_Rc = NULL;
tid_t l_tidRc = task_wait_tid( l_tid, &l_status, &l_Rc);
if (l_status == TASK_STATUS_CRASHED)
{
/*@ errorlog tag
* @errortype ERRL_SEV_CRITICAL_SYS_TERM
* @moduleid ATTN_INTR_TASK_MODULE
* @reasoncode ATTN_INTR_TASK_CRASHED
* @userdata1 tidRc
* @userdata2 Task Id that crashed
*
* @devdesc PRD task crashed
* @custdesc Task analyzing HW errors has failed.
*/
errlHndl_t l_err = new ERRORLOG::ErrlEntry
(
ERRORLOG::ERRL_SEV_CRITICAL_SYS_TERM, // severity
ATTN_INTR_TASK_MODULE, // moduleid
ATTN_INTR_TASK_CRASHED, // reason Code
(uint64_t)l_tidRc, // tid rc
(uint64_t)l_tid // task that crashed
);
l_err->collectTrace("ATTN_FAST" , 512 );
l_err->collectTrace("PRDF" , 512 );
l_err->collectTrace("MDIA_FAST" , 512 );
// Ensure we are not on the interrupt service list.
// or we'll get hung during TI waiting for this code
// that crashed to shutdown.
INTR::unRegisterMsgQ(INTR::LSI_LCL_FIR);
// Save PLID for TI purposes
uint32_t l_fatalPlid = l_err->plid();
// Commit the elog
ATTN_ERR("Committing INTR task crash elog");
errlCommit(l_err, ATTN_COMP_ID);
// Crash now
INITSERVICE::doShutdown(l_fatalPlid, true);
} // end if crashed
// On Normal shutdown of thread, we will get here
// and exit normally
return NULL;
} // end intrTask
bool Service::intrTaskWait(msg_t * & o_msg)
{
// wait for a shutdown message
// or an interrupt
bool shutdown = false;
msg_q_t q = iv_intrTaskQ;
o_msg = msg_wait(q);
ATTN_FAST("...intr task woke up");
shutdown = o_msg->type == SHUTDOWN;
if(shutdown)
{
// this was a shutdown message.
// ack the message and tell the
// task loop to exit
iv_intrTaskQ = 0;
iv_shutdownPrdTask = true;
msg_respond(q, o_msg);
ATTN_FAST("interrupt task shutting down");
}
return shutdown;
}
void Service::processIntrQMsgPreAck(const msg_t & i_msg)
{
// this function should do as little as possible
// since the hw can't generate additional interrupts
// until the msg is acknowledged
TargetHandle_t proc = NULL;
// ---------------------------
// P8 used the XISR structure
// P9 uses the PIR structure
// ---------------------------
// PIR structure is
// 17 bits unused, 4 bits group, 3 bits chipId, 1 unused,
// 5/4 CoreID(norm/fused), 2/3 ThreadId(norm/fused)
PIR_t l_pir;
l_pir.word = i_msg.data[1];
TargetHandleList procs;
getTargetService().getAllChips(procs, TYPE_PROC);
TargetHandleList::iterator it = procs.begin();
// resolve the PIR to a proc target
while(it != procs.end())
{
uint64_t group = 0, chip = 0;
getTargetService().getAttribute(ATTR_FABRIC_GROUP_ID, *it, group);
getTargetService().getAttribute(ATTR_FABRIC_CHIP_ID, *it, chip);
// for debug, but you have to compile it in
ATTN_TRACE("IntrQMsgPreAck: Group:%X Chip:%X PirG:%X PirC:%X PirW:%X",
group, chip, l_pir.groupId, l_pir.chipId, l_pir.word );
if ((group == l_pir.groupId) && (chip == l_pir.chipId))
{
proc = *it;
break;
}
++it;
}
ServiceCommon::processAttnPreAck(proc);
}
void Service::processIntrQMsg(msg_t & i_msg)
{
// processIntrQMsgPreAck function should do as little as possible
// since the hw can't generate additional interrupts until the
// msg is acknowledged
processIntrQMsgPreAck(i_msg);
// respond to the interrupt service so hw
// can generate additional interrupts
INTR::sendEOI(iv_intrTaskQ, &i_msg);
// wake up the prd task
mutex_lock(&iv_mutex);
iv_interrupt = true;
mutex_unlock(&iv_mutex);
sync_cond_signal(&iv_cond);
}
#ifdef CONFIG_ENABLE_CHECKSTOP_ANALYSIS
errlHndl_t Service::processCheckstop()
{
errlHndl_t err = NULL;
AttentionList attentions;
assert(!Singleton<Service>::instance().running());
TargetHandleList list;
ProcOps & procOps = getProcOps();
attentions.clear();
getTargetService().getAllChips(list, TYPE_PROC);
TargetHandleList::iterator tit = list.begin();
while(tit != list.end())
{
// query the proc resolver for active attentions
// (we also handle mem bufs in this routine)
err = procOps.resolve( *tit, 0, attentions);
if(err)
{
ATTN_ERR("procOps.resolve() returned error.HUID:0X%08X ",
get_huid( *tit ));
break;
}
++tit;
}
if ( NULL == err )
{
if(!attentions.empty())
{
err = getPrdWrapper().callPrd(attentions);
}
if(err)
{
ATTN_ERR("callPrd() returned error." )
}
}
return err;
}
#endif // CONFIG_ENABLE_CHECKSTOP_ANALYSIS
void* Service::prdTaskWorker(void * i_svc)
{
// prd task loop
Service & svc = *static_cast<Service *>(i_svc);
bool shutdown = false;
TargetHandleList procs;
getTargetService().getAllChips(procs, TYPE_PROC);
// wait for a wakeup
while(true)
{
shutdown = svc.prdTaskWait();
if(shutdown)
{
// this was a shutdown wakeup.
// tell the prd task loop to exit
break;
}
// new attentions for prd to handle
svc.processAttentions(procs);
}
return NULL;
} // end prdTaskWorker
void* Service::prdTask(void * i_svc)
{
// We need to create the actual thread that will do the work
// and then monitor it for completion.
tid_t l_tid = task_create(&prdTaskWorker, i_svc);
assert( l_tid > 0 );
int l_status = 0;
void * l_Rc = NULL;
tid_t l_tidRc = task_wait_tid( l_tid, &l_status, &l_Rc);
if (l_status == TASK_STATUS_CRASHED)
{
/*@ errorlog tag
* @errortype ERRL_SEV_CRITICAL_SYS_TERM
* @moduleid ATTN_PRD_TASK_MODULE
* @reasoncode ATTN_PRD_TASK_CRASHED
* @userdata1 tidRc
* @userdata2 Task Id that crashed
*
* @devdesc PRD task crashed
* @custdesc Task analyzing HW errors has failed.
*/
errlHndl_t l_err = new ERRORLOG::ErrlEntry
(
ERRORLOG::ERRL_SEV_CRITICAL_SYS_TERM, // severity
ATTN_PRD_TASK_MODULE, // moduleid
ATTN_PRD_TASK_CRASHED, // reason Code
(uint64_t)l_tidRc, // tid rc
(uint64_t)l_tid // task that crashed
);
l_err->collectTrace("PRDF" , 512 );
l_err->collectTrace("MDIA_FAST" , 512 );
l_err->collectTrace("ATTN_FAST" , 512 );
// Save PLID for TI purposes
uint32_t l_fatalPlid = l_err->plid();
// Commit the elog
ATTN_ERR("Committing PRD task crash elog");
errlCommit(l_err, ATTN_COMP_ID);
// Crash now
INITSERVICE::doShutdown(l_fatalPlid, true);
} // end if crashed
// On Normal shutdown of thread, we will get here
// and exit normally
return NULL;
} // end prdTask
bool Service::prdTaskWait()
{
// wait for a wakeup
bool shutdown = false;
mutex_lock(&iv_mutex);
while(!iv_interrupt && !iv_shutdownPrdTask)
{
sync_cond_wait(&iv_cond, &iv_mutex);
}
ATTN_FAST("...prd task woke up, shutdown: %d, pending: %d",
iv_shutdownPrdTask,
iv_interrupt);
if(iv_shutdownPrdTask)
{
swap(shutdown, iv_shutdownPrdTask);
}
iv_interrupt = false;
mutex_unlock(&iv_mutex);
if(shutdown)
{
ATTN_FAST("prd task shutting down");
}
return shutdown;
}
errlHndl_t Service::stop()
{
ATTN_SLOW("shutting down...");
mutex_lock(&iv_mutex);
tid_t intrTask = iv_intrTask;
tid_t prdTask = iv_prdTask;
msg_q_t q = iv_intrTaskQ;
iv_intrTask = 0;
iv_prdTask = 0;
mutex_unlock(&iv_mutex);
if(intrTask)
{
errlHndl_t err = configureInterrupts(q, DOWN);
if(err)
{
errlCommit(err, ATTN_COMP_ID);
}
msg_t * shutdownMsg = msg_allocate();
shutdownMsg->type = SHUTDOWN;
msg_sendrecv(q, shutdownMsg);
msg_free(shutdownMsg);
task_wait_tid(intrTask, 0, 0);
msg_q_destroy(q);
}
if(prdTask)
{
sync_cond_signal(&iv_cond);
task_wait_tid(prdTask, 0, 0);
}
ATTN_SLOW("..shutdown complete");
return 0;
}
bool Service::startIntrTask()
{
if(!iv_intrTask)
{
iv_intrTask = task_create(&intrTask, this);
}
return iv_intrTask != 0;
}
bool Service::startPrdTask()
{
if(!iv_prdTask)
{
iv_prdTask = task_create(&prdTask, this);
}
return iv_prdTask != 0;
}
errlHndl_t Service::start()
{
errlHndl_t err = NULL;
bool cleanStartup = false;
ATTN_SLOW("starting...");
mutex_lock(&iv_mutex);
do {
if(!iv_intrTaskQ) {
// register msg q with interrupt
// service for attention type interrupts
msg_q_t q = msg_q_create();
err = configureInterrupts(q, UP);
if(err)
{
msg_q_destroy(q);
break;
}
iv_intrTaskQ = q;
}
if(!startIntrTask())
{
break;
}
if(!startPrdTask())
{
break;
}
cleanStartup = true;
} while(0);
tid_t prd = iv_prdTask, intr = iv_intrTask;
mutex_unlock(&iv_mutex);
if(!cleanStartup)
{
errlHndl_t err2 = stop();
if(err2)
{
errlCommit(err2, ATTN_COMP_ID);
}
}
else
{
ATTN_SLOW("..startup complete, intr: %d, prd: %d", intr, prd);
}
return err;
}
Service::Service() :
ServiceCommon(),
iv_interrupt(false),
iv_intrTaskQ(0),
iv_shutdownPrdTask(false),
iv_prdTask(0),
iv_intrTask(0)
{
sync_cond_init(&iv_cond);
}
Service::~Service()
{
errlHndl_t err = stop();
if(err)
{
errlCommit(err, ATTN_COMP_ID);
}
sync_cond_destroy(&iv_cond);
}
bool Service::running()
{
bool running;
mutex_lock(&iv_mutex);
running = 0 != iv_intrTaskQ;
mutex_unlock(&iv_mutex);
return running;
}
}
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