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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/sbefw/sbecmdringaccess.C $ */
/* */
/* OpenPOWER sbe Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2016 */
/* [+] 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 */
/*
* @file: ppe/sbe/sbefw/sbecmdringaccess.C
*
* @brief This file contains the SBE Ring Access chipOps
*
*/
#include "sbecmdringaccess.H"
#include "sbefifo.H"
#include "sbe_sp_intf.H"
#include "sbetrace.H"
#include "sbeHostMsg.H"
#include "sbeHostUtils.H"
#include "sbeFifoMsgUtils.H"
#include "sbeutil.H"
#include "sbefapiutil.H"
#include "fapi2.H"
#include "plat_hw_access.H"
using namespace fapi2;
static const uint32_t SIZE_OF_LENGTH_INWORDS = 1;
static const uint32_t NUM_WORDS_PER_GRANULE = 2;
static const uint32_t GETRING_GRANULE_SIZE_IN_BITS = 64;
uint32_t sbePutRingFromImagePSU (uint8_t *i_pArg)
{
#define SBE_FUNC " sbePutRingFromImagePSU "
SBE_ENTER(SBE_FUNC);
uint32_t l_rc = SBE_SEC_OPERATION_SUCCESSFUL;
uint32_t l_fapiRc = FAPI2_RC_SUCCESS;
sbePSUPutRingCMD_t l_cmd = {0};
do
{
// Fetch Ring ID, Ring mode and pervasive chiplet id from the message
// and also send Ack to Host via SBE_SBE2PSU_DOORBELL_SET_BIT1
l_rc = sbeReadPsu2SbeMbxReg(SBE_HOST_PSU_MBOX_REG1,
(sizeof(l_cmd)/sizeof(uint64_t)),
(uint64_t*)&l_cmd,
true);
if(SBE_SEC_OPERATION_SUCCESSFUL != l_rc)
{
SBE_ERROR(SBE_FUNC "Failed to extract SBE_HOST_PSU_MBOX_REG1 and "
"SBE_HOST_PSU_MBOX_REG2");
break;
}
// Construct a Target from Chiplet ID and Target Type
fapi2::plat_target_handle_t l_tgtHndl = {0};
if(!sbeGetFapiTargetHandle(l_cmd.TargetType, l_cmd.ChipletID,
l_tgtHndl))
{
SBE_ERROR(SBE_FUNC "Invalid target type [0x%04x]",
(uint16_t)l_cmd.TargetType);
g_sbeSbe2PsuRespHdr.setStatus(SBE_PRI_INVALID_DATA,
SBE_SEC_INVALID_TARGET_TYPE_PASSED);
break;
}
fapi2::Target<TARGET_TYPE_ALL> l_Tgt(l_tgtHndl);
// Initialize with HEADER CHECK mode
uint16_t l_ringMode = sbeToFapiRingMode(l_cmd.RingMode);
l_fapiRc = (uint32_t)putRing(l_Tgt, (RingID)l_cmd.RingID,
(RingMode)l_ringMode);
if(l_fapiRc != FAPI2_RC_SUCCESS)
{
SBE_ERROR(SBE_FUNC "putRing HWP failure - "
"MSG - Target Type [0x%04x] Ring ID [0x%04x]"
" Ring Mode [0x%04x] Chiplet ID [0x%04x]",
l_cmd.TargetType,
l_cmd.RingID,
l_cmd.RingMode,
l_cmd.ChipletID);
break;
}
}while(0); // End of do-while
// Send the response
sbePSUSendResponse(g_sbeSbe2PsuRespHdr, l_fapiRc, l_rc);
SBE_EXIT(SBE_FUNC);
return l_rc;
#undef SBE_FUNC
}
//////////////////////////////////////////////////////
//////////////////////////////////////////////////////
uint32_t sbeGetRing(uint8_t *i_pArg)
{
#define SBE_FUNC " sbeGetRing "
SBE_ENTER(SBE_FUNC);
uint32_t l_rc = SBE_SEC_OPERATION_SUCCESSFUL;
sbeGetRingAccessMsgHdr_t l_reqMsg;
sbeRespGenHdr_t respHdr;
respHdr.init();
sbeResponseFfdc_t l_ffdc;
ReturnCode l_fapiRc;
uint32_t l_len = 0;
uint32_t l_bitSentCnt = 0;
do
{
// Get the ring access header
l_len = sizeof(sbeGetRingAccessMsgHdr_t)/sizeof(uint32_t);
l_rc = sbeUpFifoDeq_mult (l_len, (uint32_t *)&l_reqMsg); // EOT fetch
// If FIFO access failure
CHECK_SBE_RC_AND_BREAK_IF_NOT_SUCCESS(l_rc);
SBE_INFO(SBE_FUNC "Ring Address 0x%08X User Ring Mode 0x%04X "
"Length in Bits 0x%08X",
l_reqMsg.ringAddr, l_reqMsg.ringMode, l_reqMsg.ringLenInBits);
uint16_t l_ringMode = sbeToFapiRingMode(l_reqMsg.ringMode);
// Call getRing_setup - loads the scan region data for the given ring
// address and updates the check word data
l_fapiRc = fapi2::getRing_setup(l_reqMsg.ringAddr,
(fapi2::RingMode)l_ringMode);
if( l_fapiRc != FAPI2_RC_SUCCESS )
{
SBE_ERROR(SBE_FUNC" getRing_setup failed. RingAddress:0x%08X "
"RingMode:0x%04x", l_reqMsg.ringAddr, l_ringMode);
respHdr.setStatus( SBE_PRI_GENERIC_EXECUTION_FAILURE,
SBE_SEC_GENERIC_FAILURE_IN_EXECUTION);
l_ffdc.setRc(l_fapiRc);
break;
}
// Calculate the iteration length
uint32_t l_loopCnt =
(l_reqMsg.ringLenInBits / GETRING_GRANULE_SIZE_IN_BITS);
// Check for modulus - remainder
uint8_t l_mod = (l_reqMsg.ringLenInBits % GETRING_GRANULE_SIZE_IN_BITS);
if(l_mod)
{
++l_loopCnt;
}
// fix for the alignment issue
uint32_t l_buf[NUM_WORDS_PER_GRANULE]__attribute__ ((aligned (8))) ={0};
uint32_t l_bitShift = 0;
l_len = NUM_WORDS_PER_GRANULE;
// Fetch the ring data in bits, each iteration will give you 64bits
for(uint32_t l_cnt=0; l_cnt < l_loopCnt; l_cnt++)
{
if((l_cnt == (l_loopCnt-1)) && (l_mod))
{
l_bitShift = l_mod;
}
else
{
l_bitShift = GETRING_GRANULE_SIZE_IN_BITS;
}
// Call getRing_granule_data - read the 64 bit data from the HW
l_fapiRc = getRing_granule_data((uint32_t)(l_reqMsg.ringAddr),
(uint64_t*)&l_buf,
l_bitShift);
if( l_fapiRc != FAPI2_RC_SUCCESS )
{
SBE_ERROR(SBE_FUNC" getRing_granule_data failed. "
"RingAddress:0x%08X RingMode:0x%04x",
l_reqMsg.ringAddr, l_ringMode);
respHdr.setStatus( SBE_PRI_GENERIC_EXECUTION_FAILURE,
SBE_SEC_GENERIC_FAILURE_IN_EXECUTION);
l_ffdc.setRc(l_fapiRc);
break;
}
// Send it to DS Fifo
// If this is the last iteration in the loop, let the full 64bit
// go, even for 1bit of remaining length. The length passed to
// the user will take care of actual number of bits.
l_rc = sbeDownFifoEnq_mult (l_len, (uint32_t *)&l_buf);
CHECK_SBE_RC_AND_BREAK_IF_NOT_SUCCESS(l_rc);
l_bitSentCnt = l_bitSentCnt + l_bitShift;
}
if ( (l_fapiRc == FAPI2_RC_SUCCESS) &&
(l_rc == SBE_SEC_OPERATION_SUCCESSFUL) )
{
// Call getRing_verifyAndcleanup - verify the check word data is
// matching or not and will clean up the scan region data
l_fapiRc = getRing_verifyAndcleanup((uint32_t)(l_reqMsg.ringAddr),
(fapi2::RingMode)l_ringMode);
if( l_fapiRc != FAPI2_RC_SUCCESS )
{
SBE_ERROR(SBE_FUNC" getRing_verifyAndcleanup failed. "
"RingAddress:0x%08X RingMode:0x%04x",
l_reqMsg.ringAddr, l_ringMode);
respHdr.setStatus( SBE_PRI_GENERIC_EXECUTION_FAILURE,
SBE_SEC_GENERIC_FAILURE_IN_EXECUTION);
l_ffdc.setRc(l_fapiRc);
}
}
}while(false);
// Now build and enqueue response into downstream FIFO
// If there was a FIFO error, will skip sending the response,
// instead give the control back to the command processor thread
if ( SBE_SEC_OPERATION_SUCCESSFUL == l_rc )
{
l_len = SIZE_OF_LENGTH_INWORDS;
l_rc = sbeDownFifoEnq_mult (l_len, &(l_bitSentCnt));
if(SBE_SEC_OPERATION_SUCCESSFUL == l_rc)
{
l_rc = sbeDsSendRespHdr( respHdr, &l_ffdc);
}
}
SBE_EXIT(SBE_FUNC);
return l_rc;
#undef SBE_FUNC
}
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