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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/vpd/ddimm.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 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 */
/**
* Provides functionality related to the DDIMM package
*/
#include <devicefw/driverif.H>
#include <targeting/common/attributes.H>
#include <vpd/vpd_if.H>
#include <errl/errlmanager.H>
#include <hwas/common/hwasCallout.H>
#include <targeting/common/predicates/predicatectm.H>
#include <config.h>
#include <initservice/initserviceif.H>
#include <vpd/vpdreasoncodes.H>
#include "spd.H"
#include <chipids.H>
extern trace_desc_t* g_trac_vpd;
namespace VPD
{
#ifndef __HOSTBOOT_RUNTIME // No presence detection in HBRT
/**
* @brief Performs a presence detect operation on a OCMB Chip.
*
* There is no way to access the OCMB until later in the IPL so we will
* use the existence of VPD as the only indication..
*
* @param[in] i_opType Operation type, see DeviceFW::OperationType
* in driverif.H
* @param[in] i_target Presence detect target
* @param[in/out] io_buffer Read: Pointer to output data storage
* Write: Pointer to input data storage
* @param[in/out] io_buflen Input: size of io_buffer (in bytes, always 1)
* Output: Success = 1, Failure = 0
* @param[in] i_accessType DeviceFW::AccessType enum (userif.H)
* @param[in] i_args This is an argument list for DD framework.
* In this function, there are no arguments.
* @return errlHndl_t
*/
errlHndl_t ocmbPresenceDetect(DeviceFW::OperationType i_opType,
TARGETING::Target* i_target,
void* io_buffer,
size_t& io_buflen,
int64_t i_accessType,
va_list i_args)
{
errlHndl_t l_errl = nullptr;
if (unlikely(io_buflen < sizeof(bool)))
{
TRACFCOMP(g_trac_vpd,
ERR_MRK "VPD::ocmbPresenceDetect> Invalid data length: %d",
io_buflen);
/*@
* @errortype
* @moduleid VPD::MOD_OCMBPRESENCEDETECT
* @reasoncode VPD::VPD_INVALID_LENGTH
* @userdata1 Data Length
* @userdata2 HUID of target being detected
* @devdesc ocmbPresenceDetect> Invalid data length (!= 1 bytes)
* @custdesc Firmware error during boot
*/
l_errl =
new ERRORLOG::ErrlEntry(ERRORLOG::ERRL_SEV_UNRECOVERABLE,
VPD::MOD_OCMBPRESENCEDETECT,
VPD::VPD_INVALID_LENGTH,
TO_UINT64(io_buflen),
TARGETING::get_huid(i_target),
ERRORLOG::ErrlEntry::ADD_SW_CALLOUT);
io_buflen = 0;
return l_errl;
}
//@TODO-RTC:196805-Add real implementation
bool l_ocmbvpd_present = true; //default to everything present for now
//-------------------------------------------------------------------
#if 0
// First, make sure that the i2c master exists or we can't read
// our vpd
#ifdef CONFIG_MEMVPD_READ_FROM_HW
// look up i2cMasterPath from EEPROM_VPD_PRIMARY_INFO
// check if that target exists directly via FSI
bool l_check_for_vpd = isSlavePresent(i2cMasterTarget);
#else
// just default to yes for PNOR-based VPD
bool l_check_for_vpd = true;
#endif
// Next, probe the VPD contents to see if we have anything
bool l_ocmbvpd_present = ...;
#endif
#if defined(CONFIG_MEMVPD_READ_FROM_HW) && defined(CONFIG_MEMVPD_READ_FROM_PNOR)
if( l_ocmbvpd_present )
{
// Check if the VPD data in the PNOR matches the SEEPROM
l_errl = VPD::ensureCacheIsInSync( i_target );
if( l_errl )
{
// Save this plid to use later
//l_saved_plid = l_errl->plid();
l_ocmbvpd_present = false;
TRACFCOMP(g_trac_vpd,ERR_MRK "VPD::ocmbPresenceDetect> Error during ensureCacheIsInSync (DDIMM)" );
errlCommit( l_errl, VPD_COMP_ID );
}
}
else
{
// Defer invalidating DDIMM VPD in the PNOR in case another target
// might be sharing this VPD_REC_NUM. Check all targets sharing this
// VPD_REC_NUM after target discovery in VPD::validateSharedPnorCache.
// Ensure the VPD_SWITCHES cache valid bit is invalid at this point.
TARGETING::ATTR_VPD_SWITCHES_type vpdSwitches =
i_target->getAttr<TARGETING::ATTR_VPD_SWITCHES>();
vpdSwitches.pnorCacheValid = 0;
i_target->setAttr<TARGETING::ATTR_VPD_SWITCHES>( vpdSwitches );
}
#endif
//-------------------------------------------------------------------
if( l_ocmbvpd_present )
{
//Fsp sets PN/SN so if there is none, do it here
if(!INITSERVICE::spBaseServicesEnabled())
{
// set part and serial number attributes for current target
SPD::setPartAndSerialNumberAttributes( i_target );
}
}
memcpy(io_buffer, &l_ocmbvpd_present, sizeof(l_ocmbvpd_present));
io_buflen = sizeof(l_ocmbvpd_present);
return nullptr;
}
// Register the presence detect function with the device framework
DEVICE_REGISTER_ROUTE(DeviceFW::READ,
DeviceFW::PRESENT,
TARGETING::TYPE_OCMB_CHIP,
ocmbPresenceDetect);
//@fixme - RTC:201996 - Collect IDEC later in the boot
errlHndl_t ocmbIDEC(DeviceFW::OperationType i_opType,
TARGETING::Target* i_target,
void* io_buffer,
size_t& io_buflen,
int64_t i_accessType,
va_list i_args)
{
// for now just hardcode the answer to something explicitly invalid
uint8_t l_ec = INVALID__ATTR_EC;
i_target->setAttr<TARGETING::ATTR_EC>(l_ec);
i_target->setAttr<TARGETING::ATTR_HDAT_EC>(l_ec);
// we can assume this is an Explorer chip though
uint32_t l_id = POWER_CHIPID::EXPLORER_16;
i_target->setAttr<TARGETING::ATTR_CHIP_ID>(l_id);
return nullptr;
}
// Register the presence detect function with the device framework
DEVICE_REGISTER_ROUTE(DeviceFW::WRITE,
DeviceFW::IDEC,
TARGETING::TYPE_OCMB_CHIP,
ocmbIDEC);
#endif // !__HOSTBOOT_RUNTIME
//Other DDIMM functions go here
}; //namespace VPD
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