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/* IBM_PROLOG_BEGIN_TAG
* This is an automatically generated prolog.
*
* $Source: src/usr/hwpf/hwp/thread_activate/thread_activate.C $
*
* IBM CONFIDENTIAL
*
* COPYRIGHT International Business Machines Corp. 2012
*
* p1
*
* Object Code Only (OCO) source materials
* Licensed Internal Code Source Materials
* IBM HostBoot Licensed Internal Code
*
* The source code for this program is not published or other-
* wise divested of its trade secrets, irrespective of what has
* been deposited with the U.S. Copyright Office.
*
* Origin: 30
*
* IBM_PROLOG_END_TAG
*/
/**
* @file thread_activate.C
*
* Support file to start non-primary threads
*
* HWP_IGNORE_VERSION_CHECK
*
*/
/******************************************************************************/
// Includes
/******************************************************************************/
#include <stdint.h>
#include <initservice/taskargs.H>
#include <errl/errlentry.H>
#include <devicefw/userif.H>
#include <sys/misc.h>
#include <proc_thread_control.H>
// targeting support
#include <targeting/common/commontargeting.H>
#include <targeting/common/utilFilter.H>
// fapi support
#include <fapi.H>
#include <fapiPlatHwpInvoker.H>
#include <hwpf/plat/fapiPlatReasonCodes.H>
#include <hwpf/plat/fapiPlatTrace.H>
namespace THREAD_ACTIVATE
{
void activate_threads( errlHndl_t& io_rtaskRetErrl )
{
errlHndl_t l_errl = NULL;
TRACFCOMP( g_fapiTd,
"activate_threads entry" );
// get the master processor target
TARGETING::Target* l_masterProc = NULL;
TARGETING::targetService().masterProcChipTargetHandle( l_masterProc );
if( l_masterProc == NULL )
{
TRACFCOMP( g_fapiImpTd,
"Could not find master proc!!!" );
assert(false);
}
// get the list of core targets for this proc chip
TARGETING::TargetHandleList l_coreTargetList;
TARGETING::getChildChiplets( l_coreTargetList,
l_masterProc,
TARGETING::TYPE_EX,
false);
// find the core/thread we're running on
task_affinity_pin();
task_affinity_migrate_to_master(); //just in case...
uint64_t cpuid = task_getcpuid();
task_affinity_unpin();
//NNNCCCPPPPTTT
uint64_t l_masterCoreID = (cpuid & 0x0078)>>3;
uint64_t l_masterThreadID = (cpuid & 0x0007);
TARGETING::Target* l_masterCore = NULL;
for( TARGETING::TargetHandleList::iterator core_it
= l_coreTargetList.begin();
core_it != l_coreTargetList.end();
++core_it )
{
uint8_t l_coreId = (*core_it)->getAttr<TARGETING::ATTR_CHIP_UNIT>();
if( l_coreId == l_masterCoreID )
{
l_masterCore = (*core_it);
break;
}
}
if( l_masterCore == NULL )
{
TRACFCOMP( g_fapiImpTd,
"Could not find a target for core %d",
l_masterCoreID );
/*@
* @errortype
* @moduleid fapi::MOD_THREAD_ACTIVATE
* @reasoncode fapi::RC_NO_MASTER_CORE_TARGET
* @userdata1 Master cpu id (NNNCCCPPPPTTT)
* @userdata2 Master processor chip huid
* @devdesc activate_threads> Could not find a target
* for the master core
*/
l_errl = new ERRORLOG::ErrlEntry(ERRORLOG::ERRL_SEV_UNRECOVERABLE,
fapi::MOD_THREAD_ACTIVATE,
fapi::RC_NO_MASTER_CORE_TARGET,
cpuid,
TARGETING::get_huid(l_masterProc));
l_errl->collectTrace("TARG",256);
l_errl->collectTrace(FAPI_TRACE_NAME,256);
l_errl->collectTrace(FAPI_IMP_TRACE_NAME,256);
io_rtaskRetErrl = l_errl;
return;
}
TRACFCOMP( g_fapiTd,
"Master CPU : c%d t%d (HUID=%.8X)",
l_masterCoreID, l_masterThreadID, TARGETING::get_huid(l_masterCore) );
// dump physical path to core target
TARGETING::EntityPath l_path;
l_path = l_masterCore->getAttr<TARGETING::ATTR_PHYS_PATH>();
l_path.dump();
// cast OUR type of target to a FAPI type of target.
const fapi::Target l_fapiCore(
fapi::TARGET_TYPE_EX_CHIPLET,
reinterpret_cast<void *>
(const_cast<TARGETING::Target*>(l_masterCore))
);
// loop around threads 0-6, SBE starts thread 7
uint64_t max_threads = cpu_thread_count();
for( uint64_t thread = 0; thread < max_threads; thread++ )
{
// Skip the thread that we're running on
if( thread == l_masterThreadID )
{
continue;
}
// send a magic instruction for PHYP Simics to work...
MAGIC_INSTRUCTION(MAGIC_SIMICS_CORESTATESAVE);
// parameters: i_target => core target
// i_thread => thread (0..7)
// i_command =>
// PTC_CMD_SRESET => initiate sreset thread command
// PTC_CMD_START => initiate start thread command
// PTC_CMD_STOP => initiate stop thread command
// PTC_CMD_STEP => initiate step thread command
// PTC_CMD_QUERY => query and return thread state
// return data in o_ras_status
// i_warncheck => convert pre/post checks errors to warnings
// o_ras_status => output: complete RAS status register
// o_state => output: thread state info
// see proc_thread_control.H
// for bit enumerations:
// THREAD_STATE_*
ecmdDataBufferBase l_ras_status;
uint64_t l_thread_state;
FAPI_INVOKE_HWP( l_errl, proc_thread_control,
l_fapiCore, //i_target
thread, //i_thread
PTC_CMD_SRESET, //i_command
false, //i_warncheck
l_ras_status, //o_ras_status
l_thread_state); //o_state
if ( l_errl != NULL )
{
TRACFCOMP( g_fapiImpTd,
"ERROR: 0x%.8X : proc_thread_control HWP( cpu %d, thread %d, "
"ras status 0x%.16X, thread state 0x%.16X )",
l_errl->reasonCode(),
l_masterCoreID,
thread,
l_ras_status.getDoubleWord(0),
l_thread_state );
l_errl->collectTrace(FAPI_TRACE_NAME,256);
l_errl->collectTrace(FAPI_IMP_TRACE_NAME,256);
// if 1 thread fails it is unlikely that other threads will work
// so we'll just jump out now
break;
}
else
{
TRACFCOMP( g_fapiTd,
"SUCCESS: proc_thread_control HWP( cpu %d, thread %d, "
"ras status 0x%.16X,thread state 0x%.16X )",
l_masterCoreID,
thread,
l_ras_status.getDoubleWord(0),
l_thread_state );
}
TRACFCOMP( g_fapiTd,
"SUCCESS: Thread c%d t%d started",
l_masterCoreID,
thread );
}
TRACFCOMP( g_fapiTd,
"activate_threads exit" );
io_rtaskRetErrl = l_errl;
return;
}
}; // end namespace
/**
* @brief set up _start() task entry procedure for PNOR daemon
*/
TASK_ENTRY_MACRO( THREAD_ACTIVATE::activate_threads );
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