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Diffstat (limited to 'src/sbefw/app/power/istep.C')
| -rw-r--r-- | src/sbefw/app/power/istep.C | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/src/sbefw/app/power/istep.C b/src/sbefw/app/power/istep.C new file mode 100644 index 00000000..77445b85 --- /dev/null +++ b/src/sbefw/app/power/istep.C @@ -0,0 +1,165 @@ +/* IBM_PROLOG_BEGIN_TAG */ +/* This is an automatically generated prolog. */ +/* */ +/* $Source: src/sbefw/app/power/istep.C $ */ +/* */ +/* OpenPOWER sbe Project */ +/* */ +/* Contributors Listed Below - COPYRIGHT 2017,2018 */ +/* */ +/* */ +/* 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 <stdint.h> + +#include "sbefifo.H" +#include "sbetrace.H" +#include "sbe_sp_intf.H" +#include "sbeFifoMsgUtils.H" +#include "assert.h" +#include "sberegaccess.H" +#include "sbestates.H" +#include "sbecmdcntrldmt.H" +#include "sbeglobals.H" + +#include "core/ipl.H" + +extern sbeRole g_sbeRole; +static const uint8_t SLAVE_LAST_MINOR_ISTEP = 20; + +namespace SBEAPP_POWER +{ +using namespace fapi2; +//---------------------------------------------------------------------------- +bool validateIstep (const uint8_t i_major, const uint8_t i_minor) +{ + bool valid = true; + do + { + if( 0 == i_minor ) + { + valid = false; + break; + } + // istep 2.1 loads image to PIBMEM + // So SBE control loop can not execute istep 2.1. + if(( i_major == 2 ) && ( i_minor == 1) ) + { + valid = false; + break; + } + + if( SBE_ROLE_SLAVE == g_sbeRole ) + { + if(( i_major == 3 && i_minor > SLAVE_LAST_MINOR_ISTEP ) || + ( i_major > 3 )) + { + valid = false; + break; + } + } + + for(size_t entry = 0; entry < istepTable.len; entry++) + { + auto istepTableEntry = &istepTable.istepMajorArr[entry]; + if( i_major == istepTableEntry->istepMajorNum ) + { + if( i_minor > istepTableEntry->len ) + { + valid = false; + } + break; + } + } + } while(0); + + return valid; +} + +//---------------------------------------------------------------------------- +uint32_t sbeHandleIstep (uint8_t *i_pArg) +{ + #define SBE_FUNC "sbeHandleIstep " + SBE_ENTER(SBE_FUNC); + uint32_t rc = SBE_SEC_OPERATION_SUCCESSFUL; + ReturnCode fapiRc = FAPI2_RC_SUCCESS; + uint32_t len = 0; + sbeIstepReqMsg_t req; + sbeRespGenHdr_t respHdr; + respHdr.init(); + sbeResponseFfdc_t ffdc; + + // NOTE: In this function we will have two loops + // First loop will deque data and prepare the response + // Second response will enque the data on DS FIFO + //loop 1 + do + { + len = sizeof( req )/sizeof(uint32_t); + rc = sbeUpFifoDeq_mult ( len, (uint32_t *)&req); + if (rc != SBE_SEC_OPERATION_SUCCESSFUL) //FIFO access issue + { + SBE_ERROR(SBE_FUNC"FIFO dequeue failed, rc[0x%X]", rc); + break; + } + + if( false == validateIstep( req.major, req.minor ) ) + { + SBE_ERROR(SBE_FUNC" Invalid Istep. major:0x%08x" + " minor:0x%08x", + (uint32_t)req.major, (uint32_t)req.minor); + // @TODO via RTC 132295. + // Need to change code asper better error handling. + respHdr.setStatus( SBE_PRI_INVALID_DATA, + SBE_SEC_GENERIC_FAILURE_IN_EXECUTION); + break; + } + + fapiRc = sbeExecuteIstep( req.major, req.minor ); + if( fapiRc != FAPI2_RC_SUCCESS ) + { + SBE_ERROR(SBE_FUNC" sbeExecuteIstep() Failed. major:0x%08x" + " minor:0x%08x", + (uint32_t)req.major, + (uint32_t)req.minor); + respHdr.setStatus( SBE_PRI_GENERIC_EXECUTION_FAILURE, + SBE_SEC_GENERIC_FAILURE_IN_EXECUTION); + ffdc.setRc(fapiRc); + break; + } + + }while(0); + + //loop 2 + do + { + // FIFO error + if ( rc ) + { + break; + } + + rc = sbeDsSendRespHdr(respHdr, &ffdc); + }while(0); + + if( rc ) + { + SBE_ERROR( SBE_FUNC"Failed. rc[0x%X]", rc); + } + SBE_EXIT(SBE_FUNC); + return rc; + #undef SBE_FUNC +} + +} // namespace SBEAPP_POWER |
