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// IBM_PROLOG_BEGIN_TAG
// This is an automatically generated prolog.
//
// $Source: src/usr/hwas/plat/hwasPlat.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
/**
* @file hwasPlat.C
*
* @brief Platform specifics
*/
#include <hwas/hwas.H>
#include <hwas/hwasCommon.H>
#include <devicefw/driverif.H>
// trace setup; used by HWAS_DBG and HWAS_ERR macros
trace_desc_t *g_trac_dbg_hwas = NULL; // debug - fast
trace_desc_t *g_trac_imp_hwas = NULL; // important - slow
TRAC_INIT(&g_trac_dbg_hwas, "HWAS", 2048 );
TRAC_INIT(&g_trac_imp_hwas, "HWAS_I", 2048 );
namespace HWAS
{
using namespace TARGETING;
uint64_t target_to_uint64(const Target* i_target);
//******************************************************************************
// platReadIDEC function
//******************************************************************************
errlHndl_t platReadIDEC(const TargetHandleList &i_targets)
{
errlHndl_t errl = NULL;
// we have to handle the master processor chip special, so figure
// out what it is first
Target* pMasterProc = NULL;
targetService().masterProcChipTargetHandle(pMasterProc);
// we got a list of targets - read the ID/EC for eacn
// and update the appropriate ATTR_ fields.
for (TargetHandleList::const_iterator pTarget_it = i_targets.begin();
pTarget_it != i_targets.end();
pTarget_it++)
{
TargetHandle_t pTarget = *pTarget_it;
if (pTarget == pMasterProc)
{
// we have to handle this special and first. issue is that we can't
// do a deviceRead of an FSI address on 'ourselves'. so, if the
// target is the master proccessor, which is where we are running,
// then we need to do the deviceRead of the SCOM address.
uint64_t id_ec;
size_t op_size = sizeof(id_ec);
errl = DeviceFW::deviceRead(pTarget, &id_ec,
op_size, DEVICE_SCOM_ADDRESS(0x000F000Full));
if (errl == NULL)
{ // no error, so we got a valid ID/EC value back
// EC - nibbles 0,2
// 01234567
uint8_t ec = (((id_ec & 0xF000000000000000ull) >> 56) |
((id_ec & 0x00F0000000000000ull) >> 52));
pTarget->setAttr<ATTR_EC>(ec);
// ID - nibbles 1,5,3,4
// 01234567
uint32_t id = (((id_ec & 0x0F00000000000000ull) >> 44) |
((id_ec & 0x00000F0000000000ull) >> 32) |
((id_ec & 0x000F000000000000ull) >> 44) |
((id_ec & 0x0000F00000000000ull) >> 44));
pTarget->setAttr<ATTR_CHIP_ID>(id);
HWAS_DBG( "pTarget %x (%p) id %x ec %x",
target_to_uint64(pTarget), pTarget, id, ec);
}
else
{ // errl was set - this is an error condition.
HWAS_ERR( "pTarget %x (%p) %x/%x - failed ID/EC read",
target_to_uint64(pTarget), pTarget,
pTarget->getAttr<ATTR_CLASS>(),
pTarget->getAttr<ATTR_TYPE>());
// break out so that we can return an error
break;
}
} else if (pTarget->getAttr<ATTR_CLASS>() == CLASS_CHIP)
{ // CLASS_CHIP only
uint32_t id_ec;
size_t op_size = sizeof(id_ec);
errl = DeviceFW::deviceRead(pTarget, &id_ec,
op_size, DEVICE_FSI_ADDRESS(0x1028));
if (errl == NULL)
{ // no error, so we got a valid ID/EC value back
// EC - nibbles 0,2
// 01234567
uint8_t ec = (((id_ec & 0xF0000000) >> 24) |
((id_ec & 0x00F00000) >> 20));
pTarget->setAttr<ATTR_EC>(ec);
// ID - nibbles 1,5,3,4
// 01234567
uint32_t id = (((id_ec & 0x0F000000) >> 12) |
((id_ec & 0x00000F00) >> 0) |
((id_ec & 0x000F0000) >> 12) |
((id_ec & 0x0000F000) >> 12));
pTarget->setAttr<ATTR_CHIP_ID>(id);
HWAS_DBG( "pTarget %x (%p) id %x ec %x",
target_to_uint64(pTarget), pTarget, id, ec);
}
else
{ // errl was set - this is an error condition.
HWAS_ERR( "pTarget %x (%p) %x/%x - failed ID/EC read",
target_to_uint64(pTarget), pTarget,
pTarget->getAttr<ATTR_CLASS>(),
pTarget->getAttr<ATTR_TYPE>());
// break out so that we can return an error
break;
}
}
else
{ // skipping - no ID/EC on this target
HWAS_DBG( "pTarget %x (%p) %x/%x - skipping",
target_to_uint64(pTarget), pTarget,
pTarget->getAttr<ATTR_CLASS>(),
pTarget->getAttr<ATTR_TYPE>());
}
} // for pTarget_it
return errl;
} // platReadIDEC
//******************************************************************************
// platPresenceDetect function
//******************************************************************************
errlHndl_t platPresenceDetect(TargetHandleList &io_targets)
{
errlHndl_t errl = NULL;
// we got a list of targets - determine if they are present
// if not, delete them from the list
for (TargetHandleList::iterator pTarget_it = io_targets.begin();
pTarget_it != io_targets.end();
) // increment will be done in the loop below
{
TargetHandle_t pTarget = *pTarget_it;
// call deviceRead() to see if they are present
bool present = false;
size_t presentSize = sizeof(present);
errl = deviceRead(pTarget, &present, presentSize,
DEVICE_PRESENT_ADDRESS());
if (errl == NULL)
{ // no error, so we got a valid present value back
if (present == true)
{
HWAS_DBG( "io_targets %x (%p) %x/%x - detected present",
target_to_uint64(pTarget), pTarget,
pTarget->getAttr<ATTR_CLASS>(),
pTarget->getAttr<ATTR_TYPE>());
// advance to next entry in the list
pTarget_it++;
}
else
{ // chip no present -- remove from list
HWAS_DBG( "io_targets %x (%p) %x/%x - no presence",
target_to_uint64(pTarget), pTarget,
pTarget->getAttr<ATTR_CLASS>(),
pTarget->getAttr<ATTR_TYPE>());
// erase this target, and 'increment' to next
pTarget_it = io_targets.erase(pTarget_it);
}
}
else
{ // errl was set - this is an error condition.
HWAS_ERR( "io_targets %x (%p) %x/%x - failed presence detect",
target_to_uint64(pTarget), pTarget,
pTarget->getAttr<ATTR_CLASS>(),
pTarget->getAttr<ATTR_TYPE>());
// break out so that we can return an error
break;
}
} // for pTarget_it
return errl;
} // platPresenceDetect
} // namespace HWAS
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