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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/scom/preopchecks.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2011,2018 */
/* [+] 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 */
#include <devicefw/driverif.H>
#include <errl/errlentry.H>
#include <errl/errlmanager.H>
#include <scom/scomreasoncodes.H>
#include <scom/scomif.H>
// Trace definition
extern trace_desc_t* g_trac_scom;
namespace SCOM
{
/**
* @brief Common routine that verifies input parameters for *scom accesses.
*
* @param[in] i_opType Operation type, see driverif.H
* @param[in] i_target Scom target
* @param[in] i_buffer Read: Pointer to output data storage
* Write: Pointer to input data storage
* @param[in] i_buflen Input: size of io_buffer (in bytes)
* @param[in] i_addr Address being accessed (Used for FFDC)
* @return errlHndl_t
*/
errlHndl_t scomOpSanityCheck(const DeviceFW::OperationType i_opType,
const TARGETING::Target* i_target,
const void* i_buffer,
const size_t i_buflen,
const uint64_t i_addr,
const size_t i_minbufsize)
{
errlHndl_t l_err = NULL;
TRACDCOMP(g_trac_scom, INFO_MRK
">>scomOpSanityCheck: Entering Function");
do
{
// In HOSTBOOT_RUNTIME we rely on OPAL to perform indirect scoms,
// but PHYP wants us to do it ourselves. Therefore we need to
// allow 64-bit addresses to flow through in OPAL/Sapphire mode.
bool l_allowIndirectScoms = false;
#ifdef __HOSTBOOT_RUNTIME
if( TARGETING::is_sapphire_load() )
{
l_allowIndirectScoms = true;
}
#endif // __HOSTBOOT_RUNTIME
// Verify address is not over 32-bits long
if( (0 != (i_addr & 0xFFFFFFFF00000000))
&& (!l_allowIndirectScoms) )
{
TRACFCOMP(g_trac_scom, ERR_MRK
"scomOpSanityCheck: Impossible address. i_addr=0x%.16X",
i_addr);
/*@
* @errortype
* @moduleid SCOM_OP_SANITY_CHECK
* @reasoncode SCOM_INVALID_ADDR
* @userdata1 Scom address
* @userdata2 Scom target
* @devdesc The provided address is over 32 bits long
* which makes it invalid.
*/
l_err = new ERRORLOG::ErrlEntry(
ERRORLOG::ERRL_SEV_UNRECOVERABLE,
SCOM_OP_SANITY_CHECK,
SCOM_INVALID_ADDR,
i_addr,
get_huid(i_target));
l_err->addProcedureCallout(HWAS::EPUB_PRC_HB_CODE,
HWAS::SRCI_PRIORITY_HIGH);
break;
}
// Verify data buffer
if ( (i_buflen < i_minbufsize) ||
(i_buffer == NULL) )
{
TRACFCOMP(g_trac_scom, ERR_MRK
"scomOpSanityCheck: Invalid buffer. i_buflen=0x%X",
i_buflen);
/*@
* @errortype
* @moduleid SCOM_OP_SANITY_CHECK
* @reasoncode SCOM_INVALID_DATA_BUFFER
* @userdata1[0:31] Buffer size
* @userdata1[32:63] Minimum allowed buffer size
* @userdata2 Scom address
* @devdesc Buffer size is less than allowed
* or NULL data buffer
*/
l_err = new ERRORLOG::ErrlEntry(
ERRORLOG::ERRL_SEV_UNRECOVERABLE,
SCOM_OP_SANITY_CHECK,
SCOM_INVALID_DATA_BUFFER,
TWO_UINT32_TO_UINT64(
i_buflen,
i_minbufsize),
i_addr);
l_err->addProcedureCallout(HWAS::EPUB_PRC_HB_CODE,
HWAS::SRCI_PRIORITY_HIGH);
break;
}
// Verify OP type
if ( (i_opType != DeviceFW::READ) &&
(i_opType != DeviceFW::WRITE) )
{
TRACFCOMP(g_trac_scom, ERR_MRK
"scomOpSanityCheck: Invalid opType. i_opType=0x%X",
i_opType);
/*@
* @errortype
* @moduleid SCOM_OP_SANITY_CHECK
* @reasoncode SCOM_INVALID_OP_TYPE
* @userdata1 Operation type
* @userdata2 Scom address
* @devdesc Scom invalid operation type
*/
l_err = new ERRORLOG::ErrlEntry(
ERRORLOG::ERRL_SEV_UNRECOVERABLE,
SCOM_OP_SANITY_CHECK,
SCOM_INVALID_OP_TYPE,
i_opType,
i_addr);
l_err->addProcedureCallout(HWAS::EPUB_PRC_HB_CODE,
HWAS::SRCI_PRIORITY_HIGH);
break;
}
} while(0);
return l_err;
}
} // end namespace SCOM
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