fixed AVX2 issue for cnProc code generator. Some cleanup in formatting and deleting unused files.

This commit is contained in:
Raymond Knopp
2022-06-12 23:23:07 +02:00
parent aabd9c6c4e
commit f6bb869c0b
8 changed files with 982 additions and 5489 deletions
File diff suppressed because it is too large Load Diff
-505
View File
@@ -1,505 +0,0 @@
/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (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.openairinterface.org/?page_id=698
*
* 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.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
/*!\file nrLDPC_decoder.c
* \brief Defines the LDPC decoder
* \author Sebastian Wagner (TCL Communications) Email: <mailto:sebastian.wagner@tcl.com>
* \date 30-09-2019
* \version 2.0
* \note
* \warning
*/
#include <stdint.h>
#include <immintrin.h>
#include "nrLDPCdecoder_defs.h"
#include "nrLDPC_types.h"
#include "nrLDPC_init.h"
#include "nrLDPC_mPass.h"
#include "nrLDPC_cnProc.h"
#include "nrLDPC_bnProc.h"
#define NR_LDPC_ENABLE_PARITY_CHECK
#define NR_LDPC_PROFILER_DETAIL
#ifdef NR_LDPC_DEBUG_MODE
#include "nrLDPC_tools/nrLDPC_debug.h"
#endif
static inline uint32_t nrLDPC_decoder_core(int8_t* p_llr, int8_t* p_out, t_nrLDPC_procBuf* p_procBuf, uint32_t numLLR, t_nrLDPC_lut* p_lut, t_nrLDPC_dec_params* p_decParams, t_nrLDPC_time_stats* p_profiler);
int32_t nrLDPC_decod(t_nrLDPC_dec_params* p_decParams, int8_t* p_llr, int8_t* p_out, t_nrLDPC_procBuf* p_procBuf, t_nrLDPC_time_stats* p_profiler)
{
uint32_t numLLR;
uint32_t numIter = 0;
t_nrLDPC_lut lut;
t_nrLDPC_lut* p_lut = &lut;
//printf("p_procBuf->cnProcBuf = %p\n", p_procBuf->cnProcBuf);
// Initialize decoder core(s) with correct LUTs
numLLR = nrLDPC_init(p_decParams, p_lut);
// Launch LDPC decoder core for one segment
numIter = nrLDPC_decoder_core(p_llr, p_out, p_procBuf, numLLR, p_lut, p_decParams, p_profiler);
return numIter;
}
/**
\brief Performs LDPC decoding of one code block
\param p_llr Input LLRs
\param p_out Output vector
\param numLLR Number of LLRs
\param p_lut Pointer to decoder LUTs
\param p_decParams LDPC decoder parameters
\param p_profiler LDPC profiler statistics
*/
static inline uint32_t nrLDPC_decoder_core(int8_t* p_llr, int8_t* p_out, t_nrLDPC_procBuf* p_procBuf, uint32_t numLLR, t_nrLDPC_lut* p_lut, t_nrLDPC_dec_params* p_decParams, t_nrLDPC_time_stats* p_profiler)
{
uint16_t Z = p_decParams->Z;
uint8_t BG = p_decParams->BG;
uint8_t numMaxIter = p_decParams->numMaxIter;
e_nrLDPC_outMode outMode = p_decParams->outMode;
// Minimum number of iterations is 1
// 0 iterations means hard-decision on input LLRs
uint32_t i = 1;
// Initialize with parity check fail != 0
int32_t pcRes = 1;
int8_t* p_llrOut;
if (outMode == nrLDPC_outMode_LLRINT8)
{
p_llrOut = p_out;
}
else
{
// Use LLR processing buffer as temporary output buffer
p_llrOut = p_procBuf->llrProcBuf;
// Clear llrProcBuf
memset(p_llrOut,0, NR_LDPC_MAX_NUM_LLR*sizeof(int8_t));
}
// Initialization
#ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->llr2llrProcBuf);
#endif
nrLDPC_llr2llrProcBuf(p_lut, p_llr, p_procBuf, Z, BG);
#ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->llr2llrProcBuf);
#endif
#ifdef NR_LDPC_DEBUG_MODE
nrLDPC_debug_initBuffer2File(nrLDPC_buffers_LLR_PROC);
nrLDPC_debug_writeBuffer2File(nrLDPC_buffers_LLR_PROC, p_procBuf);
#endif
#ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->llr2CnProcBuf);
#endif
if (BG == 1)
{
nrLDPC_llr2CnProcBuf_BG1(p_lut, p_llr, p_procBuf, Z);
}
else
{
nrLDPC_llr2CnProcBuf_BG2(p_lut, p_llr, p_procBuf, Z);
}
#ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->llr2CnProcBuf);
#endif
#ifdef NR_LDPC_DEBUG_MODE
nrLDPC_debug_initBuffer2File(nrLDPC_buffers_CN_PROC);
nrLDPC_debug_writeBuffer2File(nrLDPC_buffers_CN_PROC, p_procBuf);
#endif
// First iteration
// CN processing
#ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->cnProc);
#endif
if (BG == 1)
{
#ifdef __AVX512BW__
nrLDPC_cnProc_BG1_AVX512(p_lut, p_procBuf, Z);
#else
nrLDPC_cnProc_BG1(p_lut, p_procBuf, Z);
#endif
}
else
{
nrLDPC_cnProc_BG2(p_lut, p_procBuf, Z);
}
#ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->cnProc);
#endif
#ifdef NR_LDPC_DEBUG_MODE
nrLDPC_debug_initBuffer2File(nrLDPC_buffers_CN_PROC_RES);
nrLDPC_debug_writeBuffer2File(nrLDPC_buffers_CN_PROC_RES, p_procBuf);
#endif
#ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->cn2bnProcBuf);
#endif
if (BG == 1)
{
nrLDPC_cn2bnProcBuf_BG1(p_lut, p_procBuf, Z);
}
else
{
nrLDPC_cn2bnProcBuf_BG2(p_lut, p_procBuf, Z);
}
#ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->cn2bnProcBuf);
#endif
#ifdef NR_LDPC_DEBUG_MODE
nrLDPC_debug_initBuffer2File(nrLDPC_buffers_BN_PROC);
nrLDPC_debug_writeBuffer2File(nrLDPC_buffers_BN_PROC, p_procBuf);
#endif
// BN processing
#ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->bnProcPc);
#endif
nrLDPC_bnProcPc(p_lut, p_procBuf, Z);
#ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->bnProcPc);
#endif
#ifdef NR_LDPC_DEBUG_MODE
nrLDPC_debug_initBuffer2File(nrLDPC_buffers_LLR_RES);
nrLDPC_debug_writeBuffer2File(nrLDPC_buffers_LLR_RES, p_procBuf);
#endif
#ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->bnProc);
#endif
nrLDPC_bnProc(p_lut, p_procBuf, Z);
#ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->bnProc);
#endif
#ifdef NR_LDPC_DEBUG_MODE
nrLDPC_debug_initBuffer2File(nrLDPC_buffers_BN_PROC_RES);
nrLDPC_debug_writeBuffer2File(nrLDPC_buffers_BN_PROC_RES, p_procBuf);
#endif
// BN results to CN processing buffer
#ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->bn2cnProcBuf);
#endif
if (BG == 1)
{
nrLDPC_bn2cnProcBuf_BG1(p_lut, p_procBuf, Z);
}
else
{
nrLDPC_bn2cnProcBuf_BG2(p_lut, p_procBuf, Z);
}
#ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->bn2cnProcBuf);
#endif
#ifdef NR_LDPC_DEBUG_MODE
nrLDPC_debug_writeBuffer2File(nrLDPC_buffers_CN_PROC, p_procBuf);
#endif
// Parity Check not necessary here since it will fail
// because first 2 cols/BNs in BG are punctured and cannot be
// estimated after only one iteration
// First iteration finished
while ( (i < (numMaxIter-1)) && (pcRes != 0) )
{
// Increase iteration counter
i++;
// CN processing
#ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->cnProc);
#endif
if (BG == 1)
{
#ifdef __AVX512BW__
nrLDPC_cnProc_BG1_AVX512(p_lut, p_procBuf, Z);
#else
nrLDPC_cnProc_BG1(p_lut, p_procBuf, Z);
#endif
}
else
{
nrLDPC_cnProc_BG2(p_lut, p_procBuf, Z);
}
#ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->cnProc);
#endif
#ifdef NR_LDPC_DEBUG_MODE
nrLDPC_debug_writeBuffer2File(nrLDPC_buffers_CN_PROC_RES, p_procBuf);
#endif
// Send CN results back to BNs
#ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->cn2bnProcBuf);
#endif
if (BG == 1)
{
nrLDPC_cn2bnProcBuf_BG1(p_lut, p_procBuf, Z);
}
else
{
nrLDPC_cn2bnProcBuf_BG2(p_lut, p_procBuf, Z);
}
#ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->cn2bnProcBuf);
#endif
#ifdef NR_LDPC_DEBUG_MODE
nrLDPC_debug_writeBuffer2File(nrLDPC_buffers_BN_PROC, p_procBuf);
#endif
// BN Processing
#ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->bnProcPc);
#endif
nrLDPC_bnProcPc(p_lut, p_procBuf, Z);
#ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->bnProcPc);
#endif
#ifdef NR_LDPC_DEBUG_MODE
nrLDPC_debug_writeBuffer2File(nrLDPC_buffers_LLR_RES, p_procBuf);
#endif
#ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->bnProc);
#endif
nrLDPC_bnProc(p_lut, p_procBuf, Z);
#ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->bnProc);
#endif
#ifdef NR_LDPC_DEBUG_MODE
nrLDPC_debug_writeBuffer2File(nrLDPC_buffers_BN_PROC_RES, p_procBuf);
#endif
// BN results to CN processing buffer
#ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->bn2cnProcBuf);
#endif
if (BG == 1)
{
nrLDPC_bn2cnProcBuf_BG1(p_lut, p_procBuf, Z);
}
else
{
nrLDPC_bn2cnProcBuf_BG2(p_lut, p_procBuf, Z);
}
#ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->bn2cnProcBuf);
#endif
#ifdef NR_LDPC_DEBUG_MODE
nrLDPC_debug_writeBuffer2File(nrLDPC_buffers_CN_PROC, p_procBuf);
#endif
// Parity Check
#ifdef NR_LDPC_ENABLE_PARITY_CHECK
#ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->cnProcPc);
#endif
if (BG == 1)
{
pcRes = nrLDPC_cnProcPc_BG1(p_lut, p_procBuf, Z);
}
else
{
pcRes = nrLDPC_cnProcPc_BG2(p_lut, p_procBuf, Z);
}
#ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->cnProcPc);
#endif
#endif
}
// Last iteration
if ( (i < numMaxIter) && (pcRes != 0) )
{
// Increase iteration counter
i++;
// CN processing
#ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->cnProc);
#endif
if (BG == 1)
{
#ifdef __AVX512BW__
nrLDPC_cnProc_BG1_AVX512(p_lut, p_procBuf, Z);
#else
nrLDPC_cnProc_BG1(p_lut, p_procBuf, Z);
#endif
}
else
{
nrLDPC_cnProc_BG2(p_lut, p_procBuf, Z);
}
#ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->cnProc);
#endif
#ifdef NR_LDPC_DEBUG_MODE
nrLDPC_debug_writeBuffer2File(nrLDPC_buffers_CN_PROC_RES, p_procBuf);
#endif
// Send CN results back to BNs
#ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->cn2bnProcBuf);
#endif
if (BG == 1)
{
nrLDPC_cn2bnProcBuf_BG1(p_lut, p_procBuf, Z);
}
else
{
nrLDPC_cn2bnProcBuf_BG2(p_lut, p_procBuf, Z);
}
#ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->cn2bnProcBuf);
#endif
#ifdef NR_LDPC_DEBUG_MODE
nrLDPC_debug_writeBuffer2File(nrLDPC_buffers_BN_PROC, p_procBuf);
#endif
// BN Processing
#ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->bnProcPc);
#endif
nrLDPC_bnProcPc(p_lut, p_procBuf, Z);
#ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->bnProcPc);
#endif
#ifdef NR_LDPC_DEBUG_MODE
nrLDPC_debug_writeBuffer2File(nrLDPC_buffers_LLR_RES, p_procBuf);
#endif
// If parity check not enabled, no need to send the BN proc results
// back to CNs
#ifdef NR_LDPC_ENABLE_PARITY_CHECK
#ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->bnProc);
#endif
nrLDPC_bnProc(p_lut, p_procBuf, Z);
#ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->bnProc);
#endif
#ifdef NR_LDPC_DEBUG_MODE
nrLDPC_debug_writeBuffer2File(nrLDPC_buffers_BN_PROC_RES, p_procBuf);
#endif
// BN results to CN processing buffer
#ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->bn2cnProcBuf);
#endif
if (BG == 1)
{
nrLDPC_bn2cnProcBuf_BG1(p_lut, p_procBuf, Z);
}
else
{
nrLDPC_bn2cnProcBuf_BG2(p_lut, p_procBuf, Z);
}
#ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->bn2cnProcBuf);
#endif
#ifdef NR_LDPC_DEBUG_MODE
nrLDPC_debug_writeBuffer2File(nrLDPC_buffers_CN_PROC, p_procBuf);
#endif
// Parity Check
#ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->cnProcPc);
#endif
if (BG == 1)
{
pcRes = nrLDPC_cnProcPc_BG1(p_lut, p_procBuf, Z);
}
else
{
pcRes = nrLDPC_cnProcPc_BG2(p_lut, p_procBuf, Z);
}
#ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->cnProcPc);
#endif
#endif
}
// If maximum number of iterations reached an PC still fails increase number of iterations
// Thus, i > numMaxIter indicates that PC has failed
#ifdef NR_LDPC_ENABLE_PARITY_CHECK
if (pcRes != 0)
{
i++;
}
#endif
// Assign results from processing buffer to output
#ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->llrRes2llrOut);
#endif
nrLDPC_llrRes2llrOut(p_lut, p_llrOut, p_procBuf, Z, BG);
#ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->llrRes2llrOut);
#endif
// Hard-decision
#ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->llr2bit);
#endif
if (outMode == nrLDPC_outMode_BIT)
{
nrLDPC_llr2bitPacked(p_out, p_llrOut, numLLR);
}
else if (outMode == nrLDPC_outMode_BITINT8)
{
nrLDPC_llr2bit(p_out, p_llrOut, numLLR);
}
#ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->llr2bit);
#endif
return i;
}
@@ -39,337 +39,9 @@
\param Z Lifting size \param Z Lifting size
*/ */
#define conditional_negate(a,b,z) _mm512_mask_sub_epi8(a,_mm512_movepi8_mask(b),z,a)
#ifdef __AVX512BW__ #ifdef __AVX512BW__
static inline void nrLDPC_cnProc_BG2_AVX512(t_nrLDPC_lut* p_lut, int8_t* cnProcBuf, int8_t* cnProcBufRes, uint16_t Z) #include "nrLDPC_cnProc_avx512.h"
{
const uint8_t* lut_numCnInCnGroups = p_lut->numCnInCnGroups;
const uint32_t* lut_startAddrCnGroups = p_lut->startAddrCnGroups;
__m512i* p_cnProcBuf;
__m512i* p_cnProcBufRes;
// Number of CNs in Groups
uint32_t M;
uint32_t i;
uint32_t j;
uint32_t k;
// Offset to each bit within a group in terms of 32 Byte
uint32_t bitOffsetInGroup;
__m512i zmm0, min, sgn, zeros;
zeros = _mm512_setzero_si512();
// maxLLR = _mm512_set1_epi8((char)127);
__m512i* p_cnProcBufResBit;
const __m512i* p_ones = (__m512i*) ones512_epi8;
const __m512i* p_maxLLR = (__m512i*) maxLLR512_epi8;
// LUT with offsets for bits that need to be processed
// 1. bit proc requires LLRs of 2. and 3. bit, 2.bits of 1. and 3. etc.
// Offsets are in units of bitOffsetInGroup
const uint8_t lut_idxCnProcG3[3][2] = {{72,144}, {0,144}, {0,72}};
// =====================================================================
// Process group with 3 BNs
if (lut_numCnInCnGroups[0] > 0)
{
// Number of groups of 32 CNs for parallel processing
// Ceil for values not divisible by 32
M = (lut_numCnInCnGroups[0]*Z + 63)>>6;
// Set the offset to each bit within a group in terms of 32 Byte
bitOffsetInGroup = (lut_numCnInCnGroups_BG2_R15[0]*NR_LDPC_ZMAX)>>6;
// Set pointers to start of group 3
p_cnProcBuf = (__m512i*) &cnProcBuf [lut_startAddrCnGroups[0]];
p_cnProcBufRes = (__m512i*) &cnProcBufRes[lut_startAddrCnGroups[0]];
// Loop over every BN
for (j=0; j<3; j++)
{
// Set of results pointer to correct BN address
p_cnProcBufResBit = p_cnProcBufRes + (j*bitOffsetInGroup);
__m512i *pj0 = &p_cnProcBuf[(lut_idxCnProcG3[j][0]/2)];
__m512i *pj1 = &p_cnProcBuf[(lut_idxCnProcG3[j][1]/2)];
// Loop over CNs
for (i=0; i<M; i++)
{
// Abs and sign of 32 CNs (first BN)
// zmm0 = p_cnProcBuf[lut_idxCnProcG3[j][0] + i];
zmm0 = pj0[i];
sgn = _mm512_xor_si512(*p_ones, zmm0);
min = _mm512_abs_epi8(zmm0);
// 32 CNs of second BN
// zmm0 = p_cnProcBuf[(lut_idxCnProcG3[j][1]/2) + i];
zmm0 = pj1[i];
min = _mm512_min_epu8(min, _mm512_abs_epi8(zmm0));
sgn = _mm512_xor_si512(sgn, zmm0);
// Store result
min = _mm512_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127
*p_cnProcBufResBit = conditional_negate(min, sgn,zeros);
p_cnProcBufResBit++;
//p_cnProcBufResBit[i]=_mm512_sign_epi8(min, sgn);
}
}
}
// =====================================================================
// Process group with 4 BNs
// Offset is 20*384/32 = 240
const uint16_t lut_idxCnProcG4[4][3] = {{240,480,720}, {0,480,720}, {0,240,720}, {0,240,480}};
if (lut_numCnInCnGroups[1] > 0)
{
// Number of groups of 32 CNs for parallel processing
// Ceil for values not divisible by 32
M = (lut_numCnInCnGroups[1]*Z + 63)>>6;
// Set the offset to each bit within a group in terms of 32 Byte
bitOffsetInGroup = (lut_numCnInCnGroups_BG2_R15[1]*NR_LDPC_ZMAX)>>6;
// Set pointers to start of group 4
p_cnProcBuf = (__m512i*) &cnProcBuf [lut_startAddrCnGroups[1]];
p_cnProcBufRes = (__m512i*) &cnProcBufRes[lut_startAddrCnGroups[1]];
// Loop over every BN
for (j=0; j<4; j++)
{
// Set of results pointer to correct BN address
p_cnProcBufResBit = p_cnProcBufRes + (j*bitOffsetInGroup);
// Loop over CNs
for (i=0; i<M; i++)
{
// Abs and sign of 32 CNs (first BN)
zmm0 = p_cnProcBuf[(lut_idxCnProcG4[j][0]/2) + i];
sgn = _mm512_xor_si512(*p_ones, zmm0);
min = _mm512_abs_epi8(zmm0);
// Loop over BNs
for (k=1; k<3; k++)
{
zmm0 = p_cnProcBuf[(lut_idxCnProcG4[j][k]/2) + i];
min = _mm512_min_epu8(min, _mm512_abs_epi8(zmm0));
sgn = _mm512_xor_si512(sgn, zmm0);
}
// Store result
min = _mm512_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127
*p_cnProcBufResBit = conditional_negate(min, sgn,zeros);
p_cnProcBufResBit++;
}
}
}
// =====================================================================
// Process group with 5 BNs
// Offset is 9*384/32 = 108
const uint16_t lut_idxCnProcG5[5][4] = {{108,216,324,432}, {0,216,324,432},
{0,108,324,432}, {0,108,216,432}, {0,108,216,324}};
if (lut_numCnInCnGroups[2] > 0)
{
// Number of groups of 32 CNs for parallel processing
// Ceil for values not divisible by 32
M = (lut_numCnInCnGroups[2]*Z + 63)>>6;
// Set the offset to each bit within a group in terms of 32 Byte
bitOffsetInGroup = (lut_numCnInCnGroups_BG2_R15[2]*NR_LDPC_ZMAX)>>6;
// Set pointers to start of group 5
p_cnProcBuf = (__m512i*) &cnProcBuf [lut_startAddrCnGroups[2]];
p_cnProcBufRes = (__m512i*) &cnProcBufRes[lut_startAddrCnGroups[2]];
// Loop over every BN
for (j=0; j<5; j++)
{
// Set of results pointer to correct BN address
p_cnProcBufResBit = p_cnProcBufRes + (j*bitOffsetInGroup);
// Loop over CNs
for (i=0; i<M; i++)
{
// Abs and sign of 32 CNs (first BN)
zmm0 = p_cnProcBuf[(lut_idxCnProcG5[j][0]/2) + i];
sgn = _mm512_xor_si512(*p_ones, zmm0);
min = _mm512_abs_epi8(zmm0);
// Loop over BNs
for (k=1; k<4; k++)
{
zmm0 = p_cnProcBuf[(lut_idxCnProcG5[j][k]/2) + i];
min = _mm512_min_epu8(min, _mm512_abs_epi8(zmm0));
sgn = _mm512_xor_si512(sgn, zmm0);
}
// Store result
min = _mm512_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127
*p_cnProcBufResBit = conditional_negate(min, sgn,zeros);
p_cnProcBufResBit++;
}
}
}
// =====================================================================
// Process group with 6 BNs
// Offset is 3*384/32 = 36
const uint16_t lut_idxCnProcG6[6][5] = {{36,72,108,144,180}, {0,72,108,144,180},
{0,36,108,144,180}, {0,36,72,144,180},
{0,36,72,108,180}, {0,36,72,108,144}};
if (lut_numCnInCnGroups[3] > 0)
{
// Number of groups of 32 CNs for parallel processing
// Ceil for values not divisible by 32
M = (lut_numCnInCnGroups[3]*Z + 63)>>6;
// Set the offset to each bit within a group in terms of 32 Byte
bitOffsetInGroup = (lut_numCnInCnGroups_BG2_R15[3]*NR_LDPC_ZMAX)>>6;
// Set pointers to start of group 6
p_cnProcBuf = (__m512i*) &cnProcBuf [lut_startAddrCnGroups[3]];
p_cnProcBufRes = (__m512i*) &cnProcBufRes[lut_startAddrCnGroups[3]];
// Loop over every BN
for (j=0; j<6; j++)
{
// Set of results pointer to correct BN address
p_cnProcBufResBit = p_cnProcBufRes + (j*bitOffsetInGroup);
// Loop over CNs
for (i=0; i<M; i++)
{
// Abs and sign of 32 CNs (first BN)
zmm0 = p_cnProcBuf[(lut_idxCnProcG6[j][0]/2) + i];
sgn = _mm512_xor_si512(*p_ones, zmm0);
min = _mm512_abs_epi8(zmm0);
// Loop over BNs
for (k=1; k<5; k++)
{
zmm0 = p_cnProcBuf[(lut_idxCnProcG6[j][k]/2) + i];
min = _mm512_min_epu8(min, _mm512_abs_epi8(zmm0));
sgn = _mm512_xor_si512(sgn, zmm0);
}
// Store result
min = _mm512_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127
*p_cnProcBufResBit = conditional_negate(min, sgn,zeros);
p_cnProcBufResBit++;
}
}
}
// =====================================================================
// Process group with 8 BNs
// Offset is 2*384/32 = 24
const uint8_t lut_idxCnProcG8[8][7] = {{24,48,72,96,120,144,168}, {0,48,72,96,120,144,168},
{0,24,72,96,120,144,168}, {0,24,48,96,120,144,168},
{0,24,48,72,120,144,168}, {0,24,48,72,96,144,168},
{0,24,48,72,96,120,168}, {0,24,48,72,96,120,144}};
if (lut_numCnInCnGroups[4] > 0)
{
// Number of groups of 32 CNs for parallel processing
// Ceil for values not divisible by 32
M = (lut_numCnInCnGroups[4]*Z + 63)>>6;
// Set the offset to each bit within a group in terms of 32 Byte
bitOffsetInGroup = (lut_numCnInCnGroups_BG2_R15[4]*NR_LDPC_ZMAX)>>6;
// Set pointers to start of group 8
p_cnProcBuf = (__m512i*) &cnProcBuf [lut_startAddrCnGroups[4]];
p_cnProcBufRes = (__m512i*) &cnProcBufRes[lut_startAddrCnGroups[4]];
// Loop over every BN
for (j=0; j<8; j++)
{
// Set of results pointer to correct BN address
p_cnProcBufResBit = p_cnProcBufRes + (j*bitOffsetInGroup);
// Loop over CNs
for (i=0; i<M; i++)
{
// Abs and sign of 32 CNs (first BN)
zmm0 = p_cnProcBuf[(lut_idxCnProcG8[j][0]/2) + i];
sgn = _mm512_xor_si512(*p_ones, zmm0);
min = _mm512_abs_epi8(zmm0);
// Loop over BNs
for (k=1; k<7; k++)
{
zmm0 = p_cnProcBuf[(lut_idxCnProcG8[j][k]/2) + i];
min = _mm512_min_epu8(min, _mm512_abs_epi8(zmm0));
sgn = _mm512_xor_si512(sgn, zmm0);
}
// Store result
min = _mm512_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127
*p_cnProcBufResBit = conditional_negate(min, sgn,zeros);
p_cnProcBufResBit++;
}
}
}
// =====================================================================
// Process group with 10 BNs
// Offset is 2*384/32 = 24
const uint8_t lut_idxCnProcG10[10][9] = {{24,48,72,96,120,144,168,192,216}, {0,48,72,96,120,144,168,192,216},
{0,24,72,96,120,144,168,192,216}, {0,24,48,96,120,144,168,192,216},
{0,24,48,72,120,144,168,192,216}, {0,24,48,72,96,144,168,192,216},
{0,24,48,72,96,120,168,192,216}, {0,24,48,72,96,120,144,192,216},
{0,24,48,72,96,120,144,168,216}, {0,24,48,72,96,120,144,168,192}};
if (lut_numCnInCnGroups[5] > 0)
{
// Number of groups of 32 CNs for parallel processing
// Ceil for values not divisible by 32
M = (lut_numCnInCnGroups[5]*Z + 63)>>6;
// Set the offset to each bit within a group in terms of 32 Byte
bitOffsetInGroup = (lut_numCnInCnGroups_BG2_R15[5]*NR_LDPC_ZMAX)>>6;
// Set pointers to start of group 10
p_cnProcBuf = (__m512i*) &cnProcBuf [lut_startAddrCnGroups[5]];
p_cnProcBufRes = (__m512i*) &cnProcBufRes[lut_startAddrCnGroups[5]];
// Loop over every BN
for (j=0; j<10; j++)
{
// Set of results pointer to correct BN address
p_cnProcBufResBit = p_cnProcBufRes + (j*bitOffsetInGroup);
// Loop over CNs
for (i=0; i<M; i++)
{
// Abs and sign of 32 CNs (first BN)
zmm0 = p_cnProcBuf[(lut_idxCnProcG10[j][0]/2) + i];
sgn = _mm512_xor_si512(*p_ones, zmm0);
min = _mm512_abs_epi8(zmm0);
// Loop over BNs
for (k=1; k<9; k++)
{
zmm0 = p_cnProcBuf[(lut_idxCnProcG10[j][k]/2) + i];
min = _mm512_min_epu8(min, _mm512_abs_epi8(zmm0));
sgn = _mm512_xor_si512(sgn, zmm0);
}
// Store result
min = _mm512_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127
*p_cnProcBufResBit = conditional_negate(min, sgn,zeros);
p_cnProcBufResBit++;
}
}
}
}
#else #else
@@ -441,9 +113,9 @@ static inline void nrLDPC_cnProc_BG2(t_nrLDPC_lut* p_lut, int8_t* cnProcBuf, int
// Store result // Store result
min = _mm256_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127 min = _mm256_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127
*p_cnProcBufResBit = _mm256_sign_epi8(min, sgn); //*p_cnProcBufResBit = _mm256_sign_epi8(min, sgn);
p_cnProcBufResBit++; //p_cnProcBufResBit++;
//p_cnProcBufResBit[i]=_mm256_sign_epi8(min, sgn); p_cnProcBufResBit[i]=_mm256_sign_epi8(min, sgn);
} }
} }
} }
@@ -700,7 +372,6 @@ static inline void nrLDPC_cnProc_BG2(t_nrLDPC_lut* p_lut, int8_t* cnProcBuf, int
} }
#endif
/** /**
\brief Performs CN processing for BG1 on the CN processing buffer and stores the results in the CN processing results buffer. \brief Performs CN processing for BG1 on the CN processing buffer and stores the results in the CN processing results buffer.
@@ -708,511 +379,8 @@ static inline void nrLDPC_cnProc_BG2(t_nrLDPC_lut* p_lut, int8_t* cnProcBuf, int
\param Z Lifting size \param Z Lifting size
*/ */
#ifdef __AVX512BW__
static inline void nrLDPC_cnProc_BG1_AVX512(t_nrLDPC_lut* p_lut, t_nrLDPC_procBuf* p_procBuf, uint16_t Z)
{
const uint8_t* lut_numCnInCnGroups = p_lut->numCnInCnGroups;
const uint32_t* lut_startAddrCnGroups = p_lut->startAddrCnGroups;
int8_t* cnProcBuf = p_procBuf->cnProcBuf;
int8_t* cnProcBufRes = p_procBuf->cnProcBufRes;
__m512i* p_cnProcBuf;
__m512i* p_cnProcBufRes;
// Number of CNs in Groups
uint32_t M;
uint32_t i;
uint32_t j;
uint32_t k;
// Offset to each bit within a group in terms of 32 Byte
uint32_t bitOffsetInGroup;
__m512i zmm0, min, sgn, zeros;
zeros = _mm512_setzero_si512();
// maxLLR = _mm512_set1_epi8((char)127);
__m512i* p_cnProcBufResBit;
const __m512i* p_ones = (__m512i*) ones512_epi8;
const __m512i* p_maxLLR = (__m512i*) maxLLR512_epi8;
// LUT with offsets for bits that need to be processed
// 1. bit proc requires LLRs of 2. and 3. bit, 2.bits of 1. and 3. etc.
// Offsets are in units of bitOffsetInGroup (1*384/32)
const uint8_t lut_idxCnProcG3[3][2] = {{12,24}, {0,24}, {0,12}};
// =====================================================================
// Process group with 3 BNs
if (lut_numCnInCnGroups[0] > 0)
{
// Number of groups of 32 CNs for parallel processing
// Ceil for values not divisible by 32
M = (lut_numCnInCnGroups[0]*Z + 63)>>6;
// Set the offset to each bit within a group in terms of 32 Byte
bitOffsetInGroup = (lut_numCnInCnGroups_BG1_R13[0]*NR_LDPC_ZMAX)>>6;
// Set pointers to start of group 3
p_cnProcBuf = (__m512i*) &cnProcBuf [lut_startAddrCnGroups[0]];
p_cnProcBufRes = (__m512i*) &cnProcBufRes[lut_startAddrCnGroups[0]];
// Loop over every BN
for (j=0; j<3; j++)
{
// Set of results pointer to correct BN address
p_cnProcBufResBit = p_cnProcBufRes + (j*bitOffsetInGroup);
// Loop over CNs
for (i=0; i<M; i++)
{
// Abs and sign of 32 CNs (first BN)
zmm0 = p_cnProcBuf[(lut_idxCnProcG3[j][0]/2) + i];
sgn = _mm512_xor_si512(*p_ones, zmm0);
min = _mm512_abs_epi8(zmm0);
// 32 CNs of second BN
zmm0 = p_cnProcBuf[(lut_idxCnProcG3[j][1]/2) + i];
min = _mm512_min_epu8(min, _mm512_abs_epi8(zmm0));
sgn = _mm512_xor_si512(sgn, zmm0);
// Store result
min = _mm512_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127
*p_cnProcBufResBit = conditional_negate(min, sgn,zeros);
p_cnProcBufResBit++;
}
}
}
// =====================================================================
// Process group with 4 BNs
// Offset is 5*384/32 = 60
const uint8_t lut_idxCnProcG4[4][3] = {{60,120,180}, {0,120,180}, {0,60,180}, {0,60,120}};
if (lut_numCnInCnGroups[1] > 0)
{
// Number of groups of 32 CNs for parallel processing
// Ceil for values not divisible by 32
M = (lut_numCnInCnGroups[1]*Z + 63)>>6;
// Set the offset to each bit within a group in terms of 32 Byte
bitOffsetInGroup = (lut_numCnInCnGroups_BG1_R13[1]*NR_LDPC_ZMAX)>>6;
// Set pointers to start of group 4
p_cnProcBuf = (__m512i*) &cnProcBuf [lut_startAddrCnGroups[1]];
p_cnProcBufRes = (__m512i*) &cnProcBufRes[lut_startAddrCnGroups[1]];
// Loop over every BN
for (j=0; j<4; j++)
{
// Set of results pointer to correct BN address
p_cnProcBufResBit = p_cnProcBufRes + (j*bitOffsetInGroup);
// Loop over CNs
for (i=0; i<M; i++)
{
// Abs and sign of 32 CNs (first BN)
zmm0 = p_cnProcBuf[(lut_idxCnProcG4[j][0]/2) + i];
sgn = _mm512_xor_si512(*p_ones, zmm0);
min = _mm512_abs_epi8(zmm0);
// Loop over BNs
for (k=1; k<3; k++)
{
zmm0 = p_cnProcBuf[(lut_idxCnProcG4[j][k]/2) + i];
min = _mm512_min_epu8(min, _mm512_abs_epi8(zmm0));
sgn = _mm512_xor_si512(sgn, zmm0);
}
// Store result
min = _mm512_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127
*p_cnProcBufResBit = conditional_negate(min, sgn,zeros);
p_cnProcBufResBit++;
}
}
}
// =====================================================================
// Process group with 5 BNs
// Offset is 18*384/32 = 216
const uint16_t lut_idxCnProcG5[5][4] = {{216,432,648,864}, {0,432,648,864},
{0,216,648,864}, {0,216,432,864}, {0,216,432,648}};
if (lut_numCnInCnGroups[2] > 0)
{
// Number of groups of 32 CNs for parallel processing
// Ceil for values not divisible by 32
M = (lut_numCnInCnGroups[2]*Z + 63)>>6;
// Set the offset to each bit within a group in terms of 32 Byte
bitOffsetInGroup = (lut_numCnInCnGroups_BG1_R13[2]*NR_LDPC_ZMAX)>>6;
// Set pointers to start of group 5
p_cnProcBuf = (__m512i*) &cnProcBuf [lut_startAddrCnGroups[2]];
p_cnProcBufRes = (__m512i*) &cnProcBufRes[lut_startAddrCnGroups[2]];
// Loop over every BN
for (j=0; j<5; j++)
{
// Set of results pointer to correct BN address
p_cnProcBufResBit = p_cnProcBufRes + (j*bitOffsetInGroup);
// Loop over CNs
for (i=0; i<M; i++)
{
// Abs and sign of 32 CNs (first BN)
zmm0 = p_cnProcBuf[(lut_idxCnProcG5[j][0]/2) + i];
sgn = _mm512_xor_si512(*p_ones, zmm0);
min = _mm512_abs_epi8(zmm0);
// Loop over BNs
for (k=1; k<4; k++)
{
zmm0 = p_cnProcBuf[(lut_idxCnProcG5[j][k]/2) + i];
min = _mm512_min_epu8(min, _mm512_abs_epi8(zmm0));
sgn = _mm512_xor_si512(sgn, zmm0);
}
// Store result
min = _mm512_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127
*p_cnProcBufResBit = conditional_negate(min, sgn,zeros);
p_cnProcBufResBit++;
}
}
}
// =====================================================================
// Process group with 6 BNs
// Offset is 8*384/32 = 96
const uint16_t lut_idxCnProcG6[6][5] = {{96,192,288,384,480}, {0,192,288,384,480},
{0,96,288,384,480}, {0,96,192,384,480},
{0,96,192,288,480}, {0,96,192,288,384}};
if (lut_numCnInCnGroups[3] > 0)
{
// Number of groups of 32 CNs for parallel processing
// Ceil for values not divisible by 32
M = (lut_numCnInCnGroups[3]*Z + 63)>>6;
// Set the offset to each bit within a group in terms of 32 Byte
bitOffsetInGroup = (lut_numCnInCnGroups_BG1_R13[3]*NR_LDPC_ZMAX)>>6;
// Set pointers to start of group 6
p_cnProcBuf = (__m512i*) &cnProcBuf [lut_startAddrCnGroups[3]];
p_cnProcBufRes = (__m512i*) &cnProcBufRes[lut_startAddrCnGroups[3]];
// Loop over every BN
for (j=0; j<6; j++)
{
// Set of results pointer to correct BN address
p_cnProcBufResBit = p_cnProcBufRes + (j*bitOffsetInGroup);
// Loop over CNs
for (i=0; i<M; i++)
{
// Abs and sign of 32 CNs (first BN)
zmm0 = p_cnProcBuf[(lut_idxCnProcG6[j][0]/2) + i];
sgn = _mm512_xor_si512(*p_ones, zmm0);
min = _mm512_abs_epi8(zmm0);
// Loop over BNs
for (k=1; k<5; k++)
{
zmm0 = p_cnProcBuf[(lut_idxCnProcG6[j][k]/2) + i];
min = _mm512_min_epu8(min, _mm512_abs_epi8(zmm0));
sgn = _mm512_xor_si512(sgn, zmm0);
}
// Store result
min = _mm512_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127
*p_cnProcBufResBit = conditional_negate(min, sgn,zeros);
p_cnProcBufResBit++;
}
}
}
// =====================================================================
// Process group with 7 BNs
// Offset is 5*384/32 = 60
const uint16_t lut_idxCnProcG7[7][6] = {{60,120,180,240,300,360}, {0,120,180,240,300,360},
{0,60,180,240,300,360}, {0,60,120,240,300,360},
{0,60,120,180,300,360}, {0,60,120,180,240,360},
{0,60,120,180,240,300}};
if (lut_numCnInCnGroups[4] > 0)
{
// Number of groups of 32 CNs for parallel processing
// Ceil for values not divisible by 32
M = (lut_numCnInCnGroups[4]*Z + 63)>>6;
// Set the offset to each bit within a group in terms of 32 Byte
bitOffsetInGroup = (lut_numCnInCnGroups_BG1_R13[4]*NR_LDPC_ZMAX)>>6;
// Set pointers to start of group 7
p_cnProcBuf = (__m512i*) &cnProcBuf [lut_startAddrCnGroups[4]];
p_cnProcBufRes = (__m512i*) &cnProcBufRes[lut_startAddrCnGroups[4]];
// Loop over every BN
for (j=0; j<7; j++)
{
// Set of results pointer to correct BN address
p_cnProcBufResBit = p_cnProcBufRes + (j*bitOffsetInGroup);
// Loop over CNs
for (i=0; i<M; i++)
{
// Abs and sign of 32 CNs (first BN)
zmm0 = p_cnProcBuf[(lut_idxCnProcG7[j][0]/2) + i];
sgn = _mm512_xor_si512(*p_ones, zmm0);
min = _mm512_abs_epi8(zmm0);
// Loop over BNs
for (k=1; k<6; k++)
{
zmm0 = p_cnProcBuf[(lut_idxCnProcG7[j][k]/2) + i];
min = _mm512_min_epu8(min, _mm512_abs_epi8(zmm0));
sgn = _mm512_xor_si512(sgn, zmm0);
}
// Store result
min = _mm512_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127
*p_cnProcBufResBit = conditional_negate(min, sgn,zeros);
p_cnProcBufResBit++;
}
}
}
// =====================================================================
// Process group with 8 BNs
// Offset is 2*384/32 = 24
const uint8_t lut_idxCnProcG8[8][7] = {{24,48,72,96,120,144,168}, {0,48,72,96,120,144,168},
{0,24,72,96,120,144,168}, {0,24,48,96,120,144,168},
{0,24,48,72,120,144,168}, {0,24,48,72,96,144,168},
{0,24,48,72,96,120,168}, {0,24,48,72,96,120,144}};
if (lut_numCnInCnGroups[5] > 0)
{
// Number of groups of 32 CNs for parallel processing
// Ceil for values not divisible by 32
M = (lut_numCnInCnGroups[5]*Z + 63)>>6;
// Set the offset to each bit within a group in terms of 32 Byte
bitOffsetInGroup = (lut_numCnInCnGroups_BG1_R13[5]*NR_LDPC_ZMAX)>>6;
// Set pointers to start of group 8
p_cnProcBuf = (__m512i*) &cnProcBuf [lut_startAddrCnGroups[5]];
p_cnProcBufRes = (__m512i*) &cnProcBufRes[lut_startAddrCnGroups[5]];
// Loop over every BN
for (j=0; j<8; j++)
{
// Set of results pointer to correct BN address
p_cnProcBufResBit = p_cnProcBufRes + (j*bitOffsetInGroup);
// Loop over CNs
for (i=0; i<M; i++)
{
// Abs and sign of 32 CNs (first BN)
zmm0 = p_cnProcBuf[(lut_idxCnProcG8[j][0]/2) + i];
sgn = _mm512_xor_si512(*p_ones, zmm0);
min = _mm512_abs_epi8(zmm0);
// Loop over BNs
for (k=1; k<7; k++)
{
zmm0 = p_cnProcBuf[(lut_idxCnProcG8[j][k]/2) + i];
min = _mm512_min_epu8(min, _mm512_abs_epi8(zmm0));
sgn = _mm512_xor_si512(sgn, zmm0);
}
// Store result
min = _mm512_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127
*p_cnProcBufResBit = conditional_negate(min, sgn,zeros);
p_cnProcBufResBit++;
}
}
}
// =====================================================================
// Process group with 9 BNs
// Offset is 2*384/32 = 24
const uint8_t lut_idxCnProcG9[9][8] = {{24,48,72,96,120,144,168,192}, {0,48,72,96,120,144,168,192},
{0,24,72,96,120,144,168,192}, {0,24,48,96,120,144,168,192},
{0,24,48,72,120,144,168,192}, {0,24,48,72,96,144,168,192},
{0,24,48,72,96,120,168,192}, {0,24,48,72,96,120,144,192},
{0,24,48,72,96,120,144,168}};
if (lut_numCnInCnGroups[6] > 0)
{
// Number of groups of 32 CNs for parallel processing
// Ceil for values not divisible by 32
M = (lut_numCnInCnGroups[6]*Z + 63)>>6;
// Set the offset to each bit within a group in terms of 32 Byte
bitOffsetInGroup = (lut_numCnInCnGroups_BG1_R13[6]*NR_LDPC_ZMAX)>>6;
// Set pointers to start of group 9
p_cnProcBuf = (__m512i*) &cnProcBuf [lut_startAddrCnGroups[6]];
p_cnProcBufRes = (__m512i*) &cnProcBufRes[lut_startAddrCnGroups[6]];
// Loop over every BN
for (j=0; j<9; j++)
{
// Set of results pointer to correct BN address
p_cnProcBufResBit = p_cnProcBufRes + (j*bitOffsetInGroup);
// Loop over CNs
for (i=0; i<M; i++)
{
// Abs and sign of 32 CNs (first BN)
zmm0 = p_cnProcBuf[(lut_idxCnProcG9[j][0]/2) + i];
sgn = _mm512_xor_si512(*p_ones, zmm0);
min = _mm512_abs_epi8(zmm0);
// Loop over BNs
for (k=1; k<8; k++)
{
zmm0 = p_cnProcBuf[(lut_idxCnProcG9[j][k]/2) + i];
min = _mm512_min_epu8(min, _mm512_abs_epi8(zmm0));
sgn = _mm512_xor_si512(sgn, zmm0);
}
// Store result
min = _mm512_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127
*p_cnProcBufResBit = conditional_negate(min, sgn,zeros);
p_cnProcBufResBit++;
}
}
}
// =====================================================================
// Process group with 10 BNs
// Offset is 1*384/32 = 12
const uint8_t lut_idxCnProcG10[10][9] = {{12,24,36,48,60,72,84,96,108}, {0,24,36,48,60,72,84,96,108},
{0,12,36,48,60,72,84,96,108}, {0,12,24,48,60,72,84,96,108},
{0,12,24,36,60,72,84,96,108}, {0,12,24,36,48,72,84,96,108},
{0,12,24,36,48,60,84,96,108}, {0,12,24,36,48,60,72,96,108},
{0,12,24,36,48,60,72,84,108}, {0,12,24,36,48,60,72,84,96}};
if (lut_numCnInCnGroups[7] > 0)
{
// Number of groups of 32 CNs for parallel processing
// Ceil for values not divisible by 32
M = (lut_numCnInCnGroups[7]*Z + 63)>>6;
// Set the offset to each bit within a group in terms of 32 Byte
bitOffsetInGroup = (lut_numCnInCnGroups_BG1_R13[7]*NR_LDPC_ZMAX)>>6;
// Set pointers to start of group 10
p_cnProcBuf = (__m512i*) &cnProcBuf [lut_startAddrCnGroups[7]];
p_cnProcBufRes = (__m512i*) &cnProcBufRes[lut_startAddrCnGroups[7]];
// Loop over every BN
for (j=0; j<10; j++)
{
// Set of results pointer to correct BN address
p_cnProcBufResBit = p_cnProcBufRes + (j*bitOffsetInGroup);
// Loop over CNs
for (i=0; i<M; i++)
{
// Abs and sign of 32 CNs (first BN)
zmm0 = p_cnProcBuf[(lut_idxCnProcG10[j][0]/2) + i];
sgn = _mm512_xor_si512(*p_ones, zmm0);
min = _mm512_abs_epi8(zmm0);
// Loop over BNs
for (k=1; k<9; k++)
{
zmm0 = p_cnProcBuf[(lut_idxCnProcG10[j][k]/2) + i];
min = _mm512_min_epu8(min, _mm512_abs_epi8(zmm0));
sgn = _mm512_xor_si512(sgn, zmm0);
}
// Store result
min = _mm512_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127
*p_cnProcBufResBit = conditional_negate(min, sgn,zeros);
p_cnProcBufResBit++;
}
}
}
// =====================================================================
// Process group with 19 BNs
// Offset is 4*384/32 = 12
const uint16_t lut_idxCnProcG19[19][18] = {{48,96,144,192,240,288,336,384,432,480,528,576,624,672,720,768,816,864}, {0,96,144,192,240,288,336,384,432,480,528,576,624,672,720,768,816,864},
{0,48,144,192,240,288,336,384,432,480,528,576,624,672,720,768,816,864}, {0,48,96,192,240,288,336,384,432,480,528,576,624,672,720,768,816,864},
{0,48,96,144,240,288,336,384,432,480,528,576,624,672,720,768,816,864}, {0,48,96,144,192,288,336,384,432,480,528,576,624,672,720,768,816,864},
{0,48,96,144,192,240,336,384,432,480,528,576,624,672,720,768,816,864}, {0,48,96,144,192,240,288,384,432,480,528,576,624,672,720,768,816,864},
{0,48,96,144,192,240,288,336,432,480,528,576,624,672,720,768,816,864}, {0,48,96,144,192,240,288,336,384,480,528,576,624,672,720,768,816,864},
{0,48,96,144,192,240,288,336,384,432,528,576,624,672,720,768,816,864}, {0,48,96,144,192,240,288,336,384,432,480,576,624,672,720,768,816,864},
{0,48,96,144,192,240,288,336,384,432,480,528,624,672,720,768,816,864}, {0,48,96,144,192,240,288,336,384,432,480,528,576,672,720,768,816,864},
{0,48,96,144,192,240,288,336,384,432,480,528,576,624,720,768,816,864}, {0,48,96,144,192,240,288,336,384,432,480,528,576,624,672,768,816,864},
{0,48,96,144,192,240,288,336,384,432,480,528,576,624,672,720,816,864}, {0,48,96,144,192,240,288,336,384,432,480,528,576,624,672,720,768,864},
{0,48,96,144,192,240,288,336,384,432,480,528,576,624,672,720,768,816}};
if (lut_numCnInCnGroups[8] > 0)
{
// Number of groups of 32 CNs for parallel processing
// Ceil for values not divisible by 32
M = (lut_numCnInCnGroups[8]*Z + 63)>>6;
// Set the offset to each bit within a group in terms of 32 Byte
bitOffsetInGroup = (lut_numCnInCnGroups_BG1_R13[8]*NR_LDPC_ZMAX)>>6;
// Set pointers to start of group 19
p_cnProcBuf = (__m512i*) &cnProcBuf [lut_startAddrCnGroups[8]];
p_cnProcBufRes = (__m512i*) &cnProcBufRes[lut_startAddrCnGroups[8]];
// Loop over every BN
for (j=0; j<19; j++)
{
// Set of results pointer to correct BN address
p_cnProcBufResBit = p_cnProcBufRes + (j*bitOffsetInGroup);
// Loop over CNs
for (i=0; i<M; i++)
{
// Abs and sign of 32 CNs (first BN)
zmm0 = p_cnProcBuf[(lut_idxCnProcG19[j][0]/2) + i];
sgn = _mm512_xor_si512(*p_ones, zmm0);
min = _mm512_abs_epi8(zmm0);
// Loop over BNs
for (k=1; k<18; k++)
{
zmm0 = p_cnProcBuf[(lut_idxCnProcG19[j][k]/2) + i];
min = _mm512_min_epu8(min, _mm512_abs_epi8(zmm0));
sgn = _mm512_xor_si512(sgn, zmm0);
}
// Store result
min = _mm512_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127
*p_cnProcBufResBit = conditional_negate(min, sgn,zeros);
p_cnProcBufResBit++;
}
}
}
}
#else
/** /**
\brief Performs CN processing for BG1 on the CN processing buffer and stores the results in the CN processing results buffer. \brief Performs CN processing for BG1 on the CN processing buffer and stores the results in the CN processing results buffer.
\param p_lut Pointer to decoder LUTs \param p_lut Pointer to decoder LUTs
@@ -1708,6 +876,7 @@ static inline void nrLDPC_cnProc_BG1(t_nrLDPC_lut* p_lut, int8_t* cnProcBuf, int
} }
} }
#endif #endif
/** /**
\brief Performs parity check for BG1 on the CN processing buffer. Stops as soon as error is detected. \brief Performs parity check for BG1 on the CN processing buffer. Stops as soon as error is detected.
@@ -0,0 +1,865 @@
/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (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.openairinterface.org/?page_id=698
*
* 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.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
/*!\file nrLDPC_cnProc_avx512.h
* \brief Defines the functions for check node processing
* \author Sebastian Wagner (TCL Communications) Email: <mailto:sebastian.wagner@tcl.com>
* \date 30-09-2021
* \version 1.0
* \note
* \warning
*/
#ifndef __NR_LDPC_CNPROC__H__
#define __NR_LDPC_CNPROC__H__
#define conditional_negate(a,b,z) _mm512_mask_sub_epi8(a,_mm512_movepi8_mask(b),z,a)
static inline void nrLDPC_cnProc_BG2_AVX512(t_nrLDPC_lut* p_lut, int8_t* cnProcBuf, int8_t* cnProcBufRes, uint16_t Z)
{
const uint8_t* lut_numCnInCnGroups = p_lut->numCnInCnGroups;
const uint32_t* lut_startAddrCnGroups = p_lut->startAddrCnGroups;
__m512i* p_cnProcBuf;
__m512i* p_cnProcBufRes;
// Number of CNs in Groups
uint32_t M;
uint32_t i;
uint32_t j;
uint32_t k;
// Offset to each bit within a group in terms of 32 Byte
uint32_t bitOffsetInGroup;
__m512i zmm0, min, sgn, zeros;
zeros = _mm512_setzero_si512();
// maxLLR = _mm512_set1_epi8((char)127);
__m512i* p_cnProcBufResBit;
const __m512i* p_ones = (__m512i*) ones512_epi8;
const __m512i* p_maxLLR = (__m512i*) maxLLR512_epi8;
// LUT with offsets for bits that need to be processed
// 1. bit proc requires LLRs of 2. and 3. bit, 2.bits of 1. and 3. etc.
// Offsets are in units of bitOffsetInGroup
const uint8_t lut_idxCnProcG3[3][2] = {{72,144}, {0,144}, {0,72}};
// =====================================================================
// Process group with 3 BNs
if (lut_numCnInCnGroups[0] > 0)
{
// Number of groups of 32 CNs for parallel processing
// Ceil for values not divisible by 32
M = (lut_numCnInCnGroups[0]*Z + 63)>>6;
// Set the offset to each bit within a group in terms of 32 Byte
bitOffsetInGroup = (lut_numCnInCnGroups_BG2_R15[0]*NR_LDPC_ZMAX)>>6;
// Set pointers to start of group 3
p_cnProcBuf = (__m512i*) &cnProcBuf [lut_startAddrCnGroups[0]];
p_cnProcBufRes = (__m512i*) &cnProcBufRes[lut_startAddrCnGroups[0]];
// Loop over every BN
for (j=0; j<3; j++)
{
// Set of results pointer to correct BN address
p_cnProcBufResBit = p_cnProcBufRes + (j*bitOffsetInGroup);
__m512i *pj0 = &p_cnProcBuf[(lut_idxCnProcG3[j][0]/2)];
__m512i *pj1 = &p_cnProcBuf[(lut_idxCnProcG3[j][1]/2)];
// Loop over CNs
for (i=0; i<M; i++)
{
// Abs and sign of 32 CNs (first BN)
// zmm0 = p_cnProcBuf[lut_idxCnProcG3[j][0] + i];
zmm0 = pj0[i];
sgn = _mm512_xor_si512(*p_ones, zmm0);
min = _mm512_abs_epi8(zmm0);
// 32 CNs of second BN
// zmm0 = p_cnProcBuf[(lut_idxCnProcG3[j][1]/2) + i];
zmm0 = pj1[i];
min = _mm512_min_epu8(min, _mm512_abs_epi8(zmm0));
sgn = _mm512_xor_si512(sgn, zmm0);
// Store result
min = _mm512_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127
*p_cnProcBufResBit = conditional_negate(min, sgn,zeros);
p_cnProcBufResBit++;
//p_cnProcBufResBit[i]=_mm512_sign_epi8(min, sgn);
}
}
}
// =====================================================================
// Process group with 4 BNs
// Offset is 20*384/32 = 240
const uint16_t lut_idxCnProcG4[4][3] = {{240,480,720}, {0,480,720}, {0,240,720}, {0,240,480}};
if (lut_numCnInCnGroups[1] > 0)
{
// Number of groups of 32 CNs for parallel processing
// Ceil for values not divisible by 32
M = (lut_numCnInCnGroups[1]*Z + 63)>>6;
// Set the offset to each bit within a group in terms of 32 Byte
bitOffsetInGroup = (lut_numCnInCnGroups_BG2_R15[1]*NR_LDPC_ZMAX)>>6;
// Set pointers to start of group 4
p_cnProcBuf = (__m512i*) &cnProcBuf [lut_startAddrCnGroups[1]];
p_cnProcBufRes = (__m512i*) &cnProcBufRes[lut_startAddrCnGroups[1]];
// Loop over every BN
for (j=0; j<4; j++)
{
// Set of results pointer to correct BN address
p_cnProcBufResBit = p_cnProcBufRes + (j*bitOffsetInGroup);
// Loop over CNs
for (i=0; i<M; i++)
{
// Abs and sign of 32 CNs (first BN)
zmm0 = p_cnProcBuf[(lut_idxCnProcG4[j][0]/2) + i];
sgn = _mm512_xor_si512(*p_ones, zmm0);
min = _mm512_abs_epi8(zmm0);
// Loop over BNs
for (k=1; k<3; k++)
{
zmm0 = p_cnProcBuf[(lut_idxCnProcG4[j][k]/2) + i];
min = _mm512_min_epu8(min, _mm512_abs_epi8(zmm0));
sgn = _mm512_xor_si512(sgn, zmm0);
}
// Store result
min = _mm512_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127
*p_cnProcBufResBit = conditional_negate(min, sgn,zeros);
p_cnProcBufResBit++;
}
}
}
// =====================================================================
// Process group with 5 BNs
// Offset is 9*384/32 = 108
const uint16_t lut_idxCnProcG5[5][4] = {{108,216,324,432}, {0,216,324,432},
{0,108,324,432}, {0,108,216,432}, {0,108,216,324}};
if (lut_numCnInCnGroups[2] > 0)
{
// Number of groups of 32 CNs for parallel processing
// Ceil for values not divisible by 32
M = (lut_numCnInCnGroups[2]*Z + 63)>>6;
// Set the offset to each bit within a group in terms of 32 Byte
bitOffsetInGroup = (lut_numCnInCnGroups_BG2_R15[2]*NR_LDPC_ZMAX)>>6;
// Set pointers to start of group 5
p_cnProcBuf = (__m512i*) &cnProcBuf [lut_startAddrCnGroups[2]];
p_cnProcBufRes = (__m512i*) &cnProcBufRes[lut_startAddrCnGroups[2]];
// Loop over every BN
for (j=0; j<5; j++)
{
// Set of results pointer to correct BN address
p_cnProcBufResBit = p_cnProcBufRes + (j*bitOffsetInGroup);
// Loop over CNs
for (i=0; i<M; i++)
{
// Abs and sign of 32 CNs (first BN)
zmm0 = p_cnProcBuf[(lut_idxCnProcG5[j][0]/2) + i];
sgn = _mm512_xor_si512(*p_ones, zmm0);
min = _mm512_abs_epi8(zmm0);
// Loop over BNs
for (k=1; k<4; k++)
{
zmm0 = p_cnProcBuf[(lut_idxCnProcG5[j][k]/2) + i];
min = _mm512_min_epu8(min, _mm512_abs_epi8(zmm0));
sgn = _mm512_xor_si512(sgn, zmm0);
}
// Store result
min = _mm512_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127
*p_cnProcBufResBit = conditional_negate(min, sgn,zeros);
p_cnProcBufResBit++;
}
}
}
// =====================================================================
// Process group with 6 BNs
// Offset is 3*384/32 = 36
const uint16_t lut_idxCnProcG6[6][5] = {{36,72,108,144,180}, {0,72,108,144,180},
{0,36,108,144,180}, {0,36,72,144,180},
{0,36,72,108,180}, {0,36,72,108,144}};
if (lut_numCnInCnGroups[3] > 0)
{
// Number of groups of 32 CNs for parallel processing
// Ceil for values not divisible by 32
M = (lut_numCnInCnGroups[3]*Z + 63)>>6;
// Set the offset to each bit within a group in terms of 32 Byte
bitOffsetInGroup = (lut_numCnInCnGroups_BG2_R15[3]*NR_LDPC_ZMAX)>>6;
// Set pointers to start of group 6
p_cnProcBuf = (__m512i*) &cnProcBuf [lut_startAddrCnGroups[3]];
p_cnProcBufRes = (__m512i*) &cnProcBufRes[lut_startAddrCnGroups[3]];
// Loop over every BN
for (j=0; j<6; j++)
{
// Set of results pointer to correct BN address
p_cnProcBufResBit = p_cnProcBufRes + (j*bitOffsetInGroup);
// Loop over CNs
for (i=0; i<M; i++)
{
// Abs and sign of 32 CNs (first BN)
zmm0 = p_cnProcBuf[(lut_idxCnProcG6[j][0]/2) + i];
sgn = _mm512_xor_si512(*p_ones, zmm0);
min = _mm512_abs_epi8(zmm0);
// Loop over BNs
for (k=1; k<5; k++)
{
zmm0 = p_cnProcBuf[(lut_idxCnProcG6[j][k]/2) + i];
min = _mm512_min_epu8(min, _mm512_abs_epi8(zmm0));
sgn = _mm512_xor_si512(sgn, zmm0);
}
// Store result
min = _mm512_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127
*p_cnProcBufResBit = conditional_negate(min, sgn,zeros);
p_cnProcBufResBit++;
}
}
}
// =====================================================================
// Process group with 8 BNs
// Offset is 2*384/32 = 24
const uint8_t lut_idxCnProcG8[8][7] = {{24,48,72,96,120,144,168}, {0,48,72,96,120,144,168},
{0,24,72,96,120,144,168}, {0,24,48,96,120,144,168},
{0,24,48,72,120,144,168}, {0,24,48,72,96,144,168},
{0,24,48,72,96,120,168}, {0,24,48,72,96,120,144}};
if (lut_numCnInCnGroups[4] > 0)
{
// Number of groups of 32 CNs for parallel processing
// Ceil for values not divisible by 32
M = (lut_numCnInCnGroups[4]*Z + 63)>>6;
// Set the offset to each bit within a group in terms of 32 Byte
bitOffsetInGroup = (lut_numCnInCnGroups_BG2_R15[4]*NR_LDPC_ZMAX)>>6;
// Set pointers to start of group 8
p_cnProcBuf = (__m512i*) &cnProcBuf [lut_startAddrCnGroups[4]];
p_cnProcBufRes = (__m512i*) &cnProcBufRes[lut_startAddrCnGroups[4]];
// Loop over every BN
for (j=0; j<8; j++)
{
// Set of results pointer to correct BN address
p_cnProcBufResBit = p_cnProcBufRes + (j*bitOffsetInGroup);
// Loop over CNs
for (i=0; i<M; i++)
{
// Abs and sign of 32 CNs (first BN)
zmm0 = p_cnProcBuf[(lut_idxCnProcG8[j][0]/2) + i];
sgn = _mm512_xor_si512(*p_ones, zmm0);
min = _mm512_abs_epi8(zmm0);
// Loop over BNs
for (k=1; k<7; k++)
{
zmm0 = p_cnProcBuf[(lut_idxCnProcG8[j][k]/2) + i];
min = _mm512_min_epu8(min, _mm512_abs_epi8(zmm0));
sgn = _mm512_xor_si512(sgn, zmm0);
}
// Store result
min = _mm512_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127
*p_cnProcBufResBit = conditional_negate(min, sgn,zeros);
p_cnProcBufResBit++;
}
}
}
// =====================================================================
// Process group with 10 BNs
// Offset is 2*384/32 = 24
const uint8_t lut_idxCnProcG10[10][9] = {{24,48,72,96,120,144,168,192,216}, {0,48,72,96,120,144,168,192,216},
{0,24,72,96,120,144,168,192,216}, {0,24,48,96,120,144,168,192,216},
{0,24,48,72,120,144,168,192,216}, {0,24,48,72,96,144,168,192,216},
{0,24,48,72,96,120,168,192,216}, {0,24,48,72,96,120,144,192,216},
{0,24,48,72,96,120,144,168,216}, {0,24,48,72,96,120,144,168,192}};
if (lut_numCnInCnGroups[5] > 0)
{
// Number of groups of 32 CNs for parallel processing
// Ceil for values not divisible by 32
M = (lut_numCnInCnGroups[5]*Z + 63)>>6;
// Set the offset to each bit within a group in terms of 32 Byte
bitOffsetInGroup = (lut_numCnInCnGroups_BG2_R15[5]*NR_LDPC_ZMAX)>>6;
// Set pointers to start of group 10
p_cnProcBuf = (__m512i*) &cnProcBuf [lut_startAddrCnGroups[5]];
p_cnProcBufRes = (__m512i*) &cnProcBufRes[lut_startAddrCnGroups[5]];
// Loop over every BN
for (j=0; j<10; j++)
{
// Set of results pointer to correct BN address
p_cnProcBufResBit = p_cnProcBufRes + (j*bitOffsetInGroup);
// Loop over CNs
for (i=0; i<M; i++)
{
// Abs and sign of 32 CNs (first BN)
zmm0 = p_cnProcBuf[(lut_idxCnProcG10[j][0]/2) + i];
sgn = _mm512_xor_si512(*p_ones, zmm0);
min = _mm512_abs_epi8(zmm0);
// Loop over BNs
for (k=1; k<9; k++)
{
zmm0 = p_cnProcBuf[(lut_idxCnProcG10[j][k]/2) + i];
min = _mm512_min_epu8(min, _mm512_abs_epi8(zmm0));
sgn = _mm512_xor_si512(sgn, zmm0);
}
// Store result
min = _mm512_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127
*p_cnProcBufResBit = conditional_negate(min, sgn,zeros);
p_cnProcBufResBit++;
}
}
}
}
static inline void nrLDPC_cnProc_BG1_AVX512(t_nrLDPC_lut* p_lut, t_nrLDPC_procBuf* p_procBuf, uint16_t Z)
{
const uint8_t* lut_numCnInCnGroups = p_lut->numCnInCnGroups;
const uint32_t* lut_startAddrCnGroups = p_lut->startAddrCnGroups;
int8_t* cnProcBuf = p_procBuf->cnProcBuf;
int8_t* cnProcBufRes = p_procBuf->cnProcBufRes;
__m512i* p_cnProcBuf;
__m512i* p_cnProcBufRes;
// Number of CNs in Groups
uint32_t M;
uint32_t i;
uint32_t j;
uint32_t k;
// Offset to each bit within a group in terms of 32 Byte
uint32_t bitOffsetInGroup;
__m512i zmm0, min, sgn, zeros;
zeros = _mm512_setzero_si512();
// maxLLR = _mm512_set1_epi8((char)127);
__m512i* p_cnProcBufResBit;
const __m512i* p_ones = (__m512i*) ones512_epi8;
const __m512i* p_maxLLR = (__m512i*) maxLLR512_epi8;
// LUT with offsets for bits that need to be processed
// 1. bit proc requires LLRs of 2. and 3. bit, 2.bits of 1. and 3. etc.
// Offsets are in units of bitOffsetInGroup (1*384/32)
const uint8_t lut_idxCnProcG3[3][2] = {{12,24}, {0,24}, {0,12}};
// =====================================================================
// Process group with 3 BNs
if (lut_numCnInCnGroups[0] > 0)
{
// Number of groups of 32 CNs for parallel processing
// Ceil for values not divisible by 32
M = (lut_numCnInCnGroups[0]*Z + 63)>>6;
// Set the offset to each bit within a group in terms of 32 Byte
bitOffsetInGroup = (lut_numCnInCnGroups_BG1_R13[0]*NR_LDPC_ZMAX)>>6;
// Set pointers to start of group 3
p_cnProcBuf = (__m512i*) &cnProcBuf [lut_startAddrCnGroups[0]];
p_cnProcBufRes = (__m512i*) &cnProcBufRes[lut_startAddrCnGroups[0]];
// Loop over every BN
for (j=0; j<3; j++)
{
// Set of results pointer to correct BN address
p_cnProcBufResBit = p_cnProcBufRes + (j*bitOffsetInGroup);
// Loop over CNs
for (i=0; i<M; i++)
{
// Abs and sign of 32 CNs (first BN)
zmm0 = p_cnProcBuf[(lut_idxCnProcG3[j][0]/2) + i];
sgn = _mm512_xor_si512(*p_ones, zmm0);
min = _mm512_abs_epi8(zmm0);
// 32 CNs of second BN
zmm0 = p_cnProcBuf[(lut_idxCnProcG3[j][1]/2) + i];
min = _mm512_min_epu8(min, _mm512_abs_epi8(zmm0));
sgn = _mm512_xor_si512(sgn, zmm0);
// Store result
min = _mm512_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127
*p_cnProcBufResBit = conditional_negate(min, sgn,zeros);
p_cnProcBufResBit++;
}
}
}
// =====================================================================
// Process group with 4 BNs
// Offset is 5*384/32 = 60
const uint8_t lut_idxCnProcG4[4][3] = {{60,120,180}, {0,120,180}, {0,60,180}, {0,60,120}};
if (lut_numCnInCnGroups[1] > 0)
{
// Number of groups of 32 CNs for parallel processing
// Ceil for values not divisible by 32
M = (lut_numCnInCnGroups[1]*Z + 63)>>6;
// Set the offset to each bit within a group in terms of 32 Byte
bitOffsetInGroup = (lut_numCnInCnGroups_BG1_R13[1]*NR_LDPC_ZMAX)>>6;
// Set pointers to start of group 4
p_cnProcBuf = (__m512i*) &cnProcBuf [lut_startAddrCnGroups[1]];
p_cnProcBufRes = (__m512i*) &cnProcBufRes[lut_startAddrCnGroups[1]];
// Loop over every BN
for (j=0; j<4; j++)
{
// Set of results pointer to correct BN address
p_cnProcBufResBit = p_cnProcBufRes + (j*bitOffsetInGroup);
// Loop over CNs
for (i=0; i<M; i++)
{
// Abs and sign of 32 CNs (first BN)
zmm0 = p_cnProcBuf[(lut_idxCnProcG4[j][0]/2) + i];
sgn = _mm512_xor_si512(*p_ones, zmm0);
min = _mm512_abs_epi8(zmm0);
// Loop over BNs
for (k=1; k<3; k++)
{
zmm0 = p_cnProcBuf[(lut_idxCnProcG4[j][k]/2) + i];
min = _mm512_min_epu8(min, _mm512_abs_epi8(zmm0));
sgn = _mm512_xor_si512(sgn, zmm0);
}
// Store result
min = _mm512_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127
*p_cnProcBufResBit = conditional_negate(min, sgn,zeros);
p_cnProcBufResBit++;
}
}
}
// =====================================================================
// Process group with 5 BNs
// Offset is 18*384/32 = 216
const uint16_t lut_idxCnProcG5[5][4] = {{216,432,648,864}, {0,432,648,864},
{0,216,648,864}, {0,216,432,864}, {0,216,432,648}};
if (lut_numCnInCnGroups[2] > 0)
{
// Number of groups of 32 CNs for parallel processing
// Ceil for values not divisible by 32
M = (lut_numCnInCnGroups[2]*Z + 63)>>6;
// Set the offset to each bit within a group in terms of 32 Byte
bitOffsetInGroup = (lut_numCnInCnGroups_BG1_R13[2]*NR_LDPC_ZMAX)>>6;
// Set pointers to start of group 5
p_cnProcBuf = (__m512i*) &cnProcBuf [lut_startAddrCnGroups[2]];
p_cnProcBufRes = (__m512i*) &cnProcBufRes[lut_startAddrCnGroups[2]];
// Loop over every BN
for (j=0; j<5; j++)
{
// Set of results pointer to correct BN address
p_cnProcBufResBit = p_cnProcBufRes + (j*bitOffsetInGroup);
// Loop over CNs
for (i=0; i<M; i++)
{
// Abs and sign of 32 CNs (first BN)
zmm0 = p_cnProcBuf[(lut_idxCnProcG5[j][0]/2) + i];
sgn = _mm512_xor_si512(*p_ones, zmm0);
min = _mm512_abs_epi8(zmm0);
// Loop over BNs
for (k=1; k<4; k++)
{
zmm0 = p_cnProcBuf[(lut_idxCnProcG5[j][k]/2) + i];
min = _mm512_min_epu8(min, _mm512_abs_epi8(zmm0));
sgn = _mm512_xor_si512(sgn, zmm0);
}
// Store result
min = _mm512_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127
*p_cnProcBufResBit = conditional_negate(min, sgn,zeros);
p_cnProcBufResBit++;
}
}
}
// =====================================================================
// Process group with 6 BNs
// Offset is 8*384/32 = 96
const uint16_t lut_idxCnProcG6[6][5] = {{96,192,288,384,480}, {0,192,288,384,480},
{0,96,288,384,480}, {0,96,192,384,480},
{0,96,192,288,480}, {0,96,192,288,384}};
if (lut_numCnInCnGroups[3] > 0)
{
// Number of groups of 32 CNs for parallel processing
// Ceil for values not divisible by 32
M = (lut_numCnInCnGroups[3]*Z + 63)>>6;
// Set the offset to each bit within a group in terms of 32 Byte
bitOffsetInGroup = (lut_numCnInCnGroups_BG1_R13[3]*NR_LDPC_ZMAX)>>6;
// Set pointers to start of group 6
p_cnProcBuf = (__m512i*) &cnProcBuf [lut_startAddrCnGroups[3]];
p_cnProcBufRes = (__m512i*) &cnProcBufRes[lut_startAddrCnGroups[3]];
// Loop over every BN
for (j=0; j<6; j++)
{
// Set of results pointer to correct BN address
p_cnProcBufResBit = p_cnProcBufRes + (j*bitOffsetInGroup);
// Loop over CNs
for (i=0; i<M; i++)
{
// Abs and sign of 32 CNs (first BN)
zmm0 = p_cnProcBuf[(lut_idxCnProcG6[j][0]/2) + i];
sgn = _mm512_xor_si512(*p_ones, zmm0);
min = _mm512_abs_epi8(zmm0);
// Loop over BNs
for (k=1; k<5; k++)
{
zmm0 = p_cnProcBuf[(lut_idxCnProcG6[j][k]/2) + i];
min = _mm512_min_epu8(min, _mm512_abs_epi8(zmm0));
sgn = _mm512_xor_si512(sgn, zmm0);
}
// Store result
min = _mm512_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127
*p_cnProcBufResBit = conditional_negate(min, sgn,zeros);
p_cnProcBufResBit++;
}
}
}
// =====================================================================
// Process group with 7 BNs
// Offset is 5*384/32 = 60
const uint16_t lut_idxCnProcG7[7][6] = {{60,120,180,240,300,360}, {0,120,180,240,300,360},
{0,60,180,240,300,360}, {0,60,120,240,300,360},
{0,60,120,180,300,360}, {0,60,120,180,240,360},
{0,60,120,180,240,300}};
if (lut_numCnInCnGroups[4] > 0)
{
// Number of groups of 32 CNs for parallel processing
// Ceil for values not divisible by 32
M = (lut_numCnInCnGroups[4]*Z + 63)>>6;
// Set the offset to each bit within a group in terms of 32 Byte
bitOffsetInGroup = (lut_numCnInCnGroups_BG1_R13[4]*NR_LDPC_ZMAX)>>6;
// Set pointers to start of group 7
p_cnProcBuf = (__m512i*) &cnProcBuf [lut_startAddrCnGroups[4]];
p_cnProcBufRes = (__m512i*) &cnProcBufRes[lut_startAddrCnGroups[4]];
// Loop over every BN
for (j=0; j<7; j++)
{
// Set of results pointer to correct BN address
p_cnProcBufResBit = p_cnProcBufRes + (j*bitOffsetInGroup);
// Loop over CNs
for (i=0; i<M; i++)
{
// Abs and sign of 32 CNs (first BN)
zmm0 = p_cnProcBuf[(lut_idxCnProcG7[j][0]/2) + i];
sgn = _mm512_xor_si512(*p_ones, zmm0);
min = _mm512_abs_epi8(zmm0);
// Loop over BNs
for (k=1; k<6; k++)
{
zmm0 = p_cnProcBuf[(lut_idxCnProcG7[j][k]/2) + i];
min = _mm512_min_epu8(min, _mm512_abs_epi8(zmm0));
sgn = _mm512_xor_si512(sgn, zmm0);
}
// Store result
min = _mm512_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127
*p_cnProcBufResBit = conditional_negate(min, sgn,zeros);
p_cnProcBufResBit++;
}
}
}
// =====================================================================
// Process group with 8 BNs
// Offset is 2*384/32 = 24
const uint8_t lut_idxCnProcG8[8][7] = {{24,48,72,96,120,144,168}, {0,48,72,96,120,144,168},
{0,24,72,96,120,144,168}, {0,24,48,96,120,144,168},
{0,24,48,72,120,144,168}, {0,24,48,72,96,144,168},
{0,24,48,72,96,120,168}, {0,24,48,72,96,120,144}};
if (lut_numCnInCnGroups[5] > 0)
{
// Number of groups of 32 CNs for parallel processing
// Ceil for values not divisible by 32
M = (lut_numCnInCnGroups[5]*Z + 63)>>6;
// Set the offset to each bit within a group in terms of 32 Byte
bitOffsetInGroup = (lut_numCnInCnGroups_BG1_R13[5]*NR_LDPC_ZMAX)>>6;
// Set pointers to start of group 8
p_cnProcBuf = (__m512i*) &cnProcBuf [lut_startAddrCnGroups[5]];
p_cnProcBufRes = (__m512i*) &cnProcBufRes[lut_startAddrCnGroups[5]];
// Loop over every BN
for (j=0; j<8; j++)
{
// Set of results pointer to correct BN address
p_cnProcBufResBit = p_cnProcBufRes + (j*bitOffsetInGroup);
// Loop over CNs
for (i=0; i<M; i++)
{
// Abs and sign of 32 CNs (first BN)
zmm0 = p_cnProcBuf[(lut_idxCnProcG8[j][0]/2) + i];
sgn = _mm512_xor_si512(*p_ones, zmm0);
min = _mm512_abs_epi8(zmm0);
// Loop over BNs
for (k=1; k<7; k++)
{
zmm0 = p_cnProcBuf[(lut_idxCnProcG8[j][k]/2) + i];
min = _mm512_min_epu8(min, _mm512_abs_epi8(zmm0));
sgn = _mm512_xor_si512(sgn, zmm0);
}
// Store result
min = _mm512_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127
*p_cnProcBufResBit = conditional_negate(min, sgn,zeros);
p_cnProcBufResBit++;
}
}
}
// =====================================================================
// Process group with 9 BNs
// Offset is 2*384/32 = 24
const uint8_t lut_idxCnProcG9[9][8] = {{24,48,72,96,120,144,168,192}, {0,48,72,96,120,144,168,192},
{0,24,72,96,120,144,168,192}, {0,24,48,96,120,144,168,192},
{0,24,48,72,120,144,168,192}, {0,24,48,72,96,144,168,192},
{0,24,48,72,96,120,168,192}, {0,24,48,72,96,120,144,192},
{0,24,48,72,96,120,144,168}};
if (lut_numCnInCnGroups[6] > 0)
{
// Number of groups of 32 CNs for parallel processing
// Ceil for values not divisible by 32
M = (lut_numCnInCnGroups[6]*Z + 63)>>6;
// Set the offset to each bit within a group in terms of 32 Byte
bitOffsetInGroup = (lut_numCnInCnGroups_BG1_R13[6]*NR_LDPC_ZMAX)>>6;
// Set pointers to start of group 9
p_cnProcBuf = (__m512i*) &cnProcBuf [lut_startAddrCnGroups[6]];
p_cnProcBufRes = (__m512i*) &cnProcBufRes[lut_startAddrCnGroups[6]];
// Loop over every BN
for (j=0; j<9; j++)
{
// Set of results pointer to correct BN address
p_cnProcBufResBit = p_cnProcBufRes + (j*bitOffsetInGroup);
// Loop over CNs
for (i=0; i<M; i++)
{
// Abs and sign of 32 CNs (first BN)
zmm0 = p_cnProcBuf[(lut_idxCnProcG9[j][0]/2) + i];
sgn = _mm512_xor_si512(*p_ones, zmm0);
min = _mm512_abs_epi8(zmm0);
// Loop over BNs
for (k=1; k<8; k++)
{
zmm0 = p_cnProcBuf[(lut_idxCnProcG9[j][k]/2) + i];
min = _mm512_min_epu8(min, _mm512_abs_epi8(zmm0));
sgn = _mm512_xor_si512(sgn, zmm0);
}
// Store result
min = _mm512_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127
*p_cnProcBufResBit = conditional_negate(min, sgn,zeros);
p_cnProcBufResBit++;
}
}
}
// =====================================================================
// Process group with 10 BNs
// Offset is 1*384/32 = 12
const uint8_t lut_idxCnProcG10[10][9] = {{12,24,36,48,60,72,84,96,108}, {0,24,36,48,60,72,84,96,108},
{0,12,36,48,60,72,84,96,108}, {0,12,24,48,60,72,84,96,108},
{0,12,24,36,60,72,84,96,108}, {0,12,24,36,48,72,84,96,108},
{0,12,24,36,48,60,84,96,108}, {0,12,24,36,48,60,72,96,108},
{0,12,24,36,48,60,72,84,108}, {0,12,24,36,48,60,72,84,96}};
if (lut_numCnInCnGroups[7] > 0)
{
// Number of groups of 32 CNs for parallel processing
// Ceil for values not divisible by 32
M = (lut_numCnInCnGroups[7]*Z + 63)>>6;
// Set the offset to each bit within a group in terms of 32 Byte
bitOffsetInGroup = (lut_numCnInCnGroups_BG1_R13[7]*NR_LDPC_ZMAX)>>6;
// Set pointers to start of group 10
p_cnProcBuf = (__m512i*) &cnProcBuf [lut_startAddrCnGroups[7]];
p_cnProcBufRes = (__m512i*) &cnProcBufRes[lut_startAddrCnGroups[7]];
// Loop over every BN
for (j=0; j<10; j++)
{
// Set of results pointer to correct BN address
p_cnProcBufResBit = p_cnProcBufRes + (j*bitOffsetInGroup);
// Loop over CNs
for (i=0; i<M; i++)
{
// Abs and sign of 32 CNs (first BN)
zmm0 = p_cnProcBuf[(lut_idxCnProcG10[j][0]/2) + i];
sgn = _mm512_xor_si512(*p_ones, zmm0);
min = _mm512_abs_epi8(zmm0);
// Loop over BNs
for (k=1; k<9; k++)
{
zmm0 = p_cnProcBuf[(lut_idxCnProcG10[j][k]/2) + i];
min = _mm512_min_epu8(min, _mm512_abs_epi8(zmm0));
sgn = _mm512_xor_si512(sgn, zmm0);
}
// Store result
min = _mm512_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127
*p_cnProcBufResBit = conditional_negate(min, sgn,zeros);
p_cnProcBufResBit++;
}
}
}
// =====================================================================
// Process group with 19 BNs
// Offset is 4*384/32 = 12
const uint16_t lut_idxCnProcG19[19][18] = {{48,96,144,192,240,288,336,384,432,480,528,576,624,672,720,768,816,864}, {0,96,144,192,240,288,336,384,432,480,528,576,624,672,720,768,816,864},
{0,48,144,192,240,288,336,384,432,480,528,576,624,672,720,768,816,864}, {0,48,96,192,240,288,336,384,432,480,528,576,624,672,720,768,816,864},
{0,48,96,144,240,288,336,384,432,480,528,576,624,672,720,768,816,864}, {0,48,96,144,192,288,336,384,432,480,528,576,624,672,720,768,816,864},
{0,48,96,144,192,240,336,384,432,480,528,576,624,672,720,768,816,864}, {0,48,96,144,192,240,288,384,432,480,528,576,624,672,720,768,816,864},
{0,48,96,144,192,240,288,336,432,480,528,576,624,672,720,768,816,864}, {0,48,96,144,192,240,288,336,384,480,528,576,624,672,720,768,816,864},
{0,48,96,144,192,240,288,336,384,432,528,576,624,672,720,768,816,864}, {0,48,96,144,192,240,288,336,384,432,480,576,624,672,720,768,816,864},
{0,48,96,144,192,240,288,336,384,432,480,528,624,672,720,768,816,864}, {0,48,96,144,192,240,288,336,384,432,480,528,576,672,720,768,816,864},
{0,48,96,144,192,240,288,336,384,432,480,528,576,624,720,768,816,864}, {0,48,96,144,192,240,288,336,384,432,480,528,576,624,672,768,816,864},
{0,48,96,144,192,240,288,336,384,432,480,528,576,624,672,720,816,864}, {0,48,96,144,192,240,288,336,384,432,480,528,576,624,672,720,768,864},
{0,48,96,144,192,240,288,336,384,432,480,528,576,624,672,720,768,816}};
if (lut_numCnInCnGroups[8] > 0)
{
// Number of groups of 32 CNs for parallel processing
// Ceil for values not divisible by 32
M = (lut_numCnInCnGroups[8]*Z + 63)>>6;
// Set the offset to each bit within a group in terms of 32 Byte
bitOffsetInGroup = (lut_numCnInCnGroups_BG1_R13[8]*NR_LDPC_ZMAX)>>6;
// Set pointers to start of group 19
p_cnProcBuf = (__m512i*) &cnProcBuf [lut_startAddrCnGroups[8]];
p_cnProcBufRes = (__m512i*) &cnProcBufRes[lut_startAddrCnGroups[8]];
// Loop over every BN
for (j=0; j<19; j++)
{
// Set of results pointer to correct BN address
p_cnProcBufResBit = p_cnProcBufRes + (j*bitOffsetInGroup);
// Loop over CNs
for (i=0; i<M; i++)
{
// Abs and sign of 32 CNs (first BN)
zmm0 = p_cnProcBuf[(lut_idxCnProcG19[j][0]/2) + i];
sgn = _mm512_xor_si512(*p_ones, zmm0);
min = _mm512_abs_epi8(zmm0);
// Loop over BNs
for (k=1; k<18; k++)
{
zmm0 = p_cnProcBuf[(lut_idxCnProcG19[j][k]/2) + i];
min = _mm512_min_epu8(min, _mm512_abs_epi8(zmm0));
sgn = _mm512_xor_si512(sgn, zmm0);
}
// Store result
min = _mm512_min_epu8(min, *p_maxLLR); // 128 in epi8 is -127
*p_cnProcBufResBit = conditional_negate(min, sgn,zeros);
p_cnProcBufResBit++;
}
}
}
}
#endif
@@ -33,8 +33,10 @@
#include "nrLDPC_mPass.h" #include "nrLDPC_mPass.h"
#include "nrLDPC_cnProc.h" #include "nrLDPC_cnProc.h"
#include "nrLDPC_bnProc.h" #include "nrLDPC_bnProc.h"
#define UNROLL_CN_PROC 1
#define UNROLL_BN_PROC 1
#define UNROLL_BN_PROC_PC 1
#define UNROLL_BN2CN_PROC 1
/*---------------------------------------------------------------------- /*----------------------------------------------------------------------
| cn processing files -->AVX512 | cn processing files -->AVX512
/----------------------------------------------------------------------*/ /----------------------------------------------------------------------*/
@@ -197,14 +199,8 @@ static inline uint32_t nrLDPC_decoder_core(int8_t* p_llr, int8_t* p_out, uint32_
#ifdef NR_LDPC_PROFILER_DETAIL #ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->llr2CnProcBuf); start_meas(&p_profiler->llr2CnProcBuf);
#endif #endif
if (BG == 1) if (BG == 1) nrLDPC_llr2CnProcBuf_BG1(p_lut, p_llr, cnProcBuf, Z);
{ else nrLDPC_llr2CnProcBuf_BG2(p_lut, p_llr, cnProcBuf, Z);
nrLDPC_llr2CnProcBuf_BG1(p_lut, p_llr, cnProcBuf, Z);
}
else
{
nrLDPC_llr2CnProcBuf_BG2(p_lut, p_llr, cnProcBuf, Z);
}
#ifdef NR_LDPC_PROFILER_DETAIL #ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->llr2CnProcBuf); stop_meas(&p_profiler->llr2CnProcBuf);
#endif #endif
@@ -220,8 +216,10 @@ static inline uint32_t nrLDPC_decoder_core(int8_t* p_llr, int8_t* p_out, uint32_
#ifdef NR_LDPC_PROFILER_DETAIL #ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->cnProc); start_meas(&p_profiler->cnProc);
#endif #endif
if (BG==1) if (BG==1) {
{ #ifndef UNROLL_CN_PROC
nrLDPC_cnProc_BG1(p_lut, cnProcBuf, cnProcBufRes, Z);
#else
switch (R) switch (R)
{ {
case 13: case 13:
@@ -232,7 +230,7 @@ static inline uint32_t nrLDPC_decoder_core(int8_t* p_llr, int8_t* p_out, uint32_
nrLDPC_cnProc_BG1_R13_AVX2(cnProcBuf, cnProcBufRes, Z); nrLDPC_cnProc_BG1_R13_AVX2(cnProcBuf, cnProcBufRes, Z);
#endif #endif
break; break;
} }
case 23: case 23:
{ {
@@ -242,7 +240,7 @@ static inline uint32_t nrLDPC_decoder_core(int8_t* p_llr, int8_t* p_out, uint32_
nrLDPC_cnProc_BG1_R23_AVX2(cnProcBuf, cnProcBufRes, Z); nrLDPC_cnProc_BG1_R23_AVX2(cnProcBuf, cnProcBufRes, Z);
#endif #endif
break; break;
} }
case 89: case 89:
{ {
@@ -252,14 +250,15 @@ static inline uint32_t nrLDPC_decoder_core(int8_t* p_llr, int8_t* p_out, uint32_
nrLDPC_cnProc_BG1_R89_AVX2(cnProcBuf, cnProcBufRes, Z); nrLDPC_cnProc_BG1_R89_AVX2(cnProcBuf, cnProcBufRes, Z);
#endif #endif
break; break;
} }
} }
} #endif
else } else {
{ #ifndef UNROLL_CN_PROC
switch (R) nrLDPC_cnProc_BG2(p_lut, cnProcBuf, cnProcBufRes, Z);
{ #else
switch (R) {
case 15: case 15:
{ {
#ifdef __AVX512BW__ #ifdef __AVX512BW__
@@ -268,8 +267,7 @@ static inline uint32_t nrLDPC_decoder_core(int8_t* p_llr, int8_t* p_out, uint32_
nrLDPC_cnProc_BG2_R15_AVX2(cnProcBuf, cnProcBufRes, Z); nrLDPC_cnProc_BG2_R15_AVX2(cnProcBuf, cnProcBufRes, Z);
#endif #endif
break; break;
} }
case 13: case 13:
{ {
#ifdef __AVX512BW__ #ifdef __AVX512BW__
@@ -278,8 +276,7 @@ static inline uint32_t nrLDPC_decoder_core(int8_t* p_llr, int8_t* p_out, uint32_
nrLDPC_cnProc_BG2_R13_AVX2(cnProcBuf, cnProcBufRes, Z); nrLDPC_cnProc_BG2_R13_AVX2(cnProcBuf, cnProcBufRes, Z);
#endif #endif
break; break;
} }
case 23: case 23:
{ {
#ifdef __AVX512BW__ #ifdef __AVX512BW__
@@ -288,10 +285,11 @@ static inline uint32_t nrLDPC_decoder_core(int8_t* p_llr, int8_t* p_out, uint32_
nrLDPC_cnProc_BG2_R23_AVX2(cnProcBuf, cnProcBufRes, Z); nrLDPC_cnProc_BG2_R23_AVX2(cnProcBuf, cnProcBufRes, Z);
#endif #endif
break; break;
} }
} }
} #endif
}
#ifdef NR_LDPC_PROFILER_DETAIL #ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->cnProc); stop_meas(&p_profiler->cnProc);
#endif #endif
@@ -304,14 +302,8 @@ static inline uint32_t nrLDPC_decoder_core(int8_t* p_llr, int8_t* p_out, uint32_
#ifdef NR_LDPC_PROFILER_DETAIL #ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->cn2bnProcBuf); start_meas(&p_profiler->cn2bnProcBuf);
#endif #endif
if (BG == 1) if (BG == 1) nrLDPC_cn2bnProcBuf_BG1(p_lut, cnProcBufRes, bnProcBuf, Z);
{ else nrLDPC_cn2bnProcBuf_BG2(p_lut, cnProcBufRes, bnProcBuf, Z);
nrLDPC_cn2bnProcBuf_BG1(p_lut, cnProcBufRes, bnProcBuf, Z);
}
else
{
nrLDPC_cn2bnProcBuf_BG2(p_lut, cnProcBufRes, bnProcBuf, Z);
}
#ifdef NR_LDPC_PROFILER_DETAIL #ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->cn2bnProcBuf); stop_meas(&p_profiler->cn2bnProcBuf);
#endif #endif
@@ -326,12 +318,12 @@ static inline uint32_t nrLDPC_decoder_core(int8_t* p_llr, int8_t* p_out, uint32_
start_meas(&p_profiler->bnProcPc); start_meas(&p_profiler->bnProcPc);
#endif #endif
//nrLDPC_bnProcPc(p_lut, p_procBuf, Z);
if (BG==1) #ifndef UNROLL_BN_PROC_PC
{ nrLDPC_bnProcPc(p_lut, bnProcBuf, bnProcBufRes, llrProcBuf, llrRes, Z);
switch (R) #else
{ if (BG==1) {
switch (R) {
case 13: case 13:
{ {
nrLDPC_bnProcPc_BG1_R13_AVX2(bnProcBuf,bnProcBufRes,llrRes, llrProcBuf, Z); nrLDPC_bnProcPc_BG1_R13_AVX2(bnProcBuf,bnProcBufRes,llrRes, llrProcBuf, Z);
@@ -348,34 +340,27 @@ static inline uint32_t nrLDPC_decoder_core(int8_t* p_llr, int8_t* p_out, uint32_
break; break;
} }
} }
} } else {
else switch (R) {
{
switch (R)
{
case 15: case 15:
{ {
nrLDPC_bnProcPc_BG2_R15_AVX2(bnProcBuf,bnProcBufRes, llrRes, llrProcBuf, Z); nrLDPC_bnProcPc_BG2_R15_AVX2(bnProcBuf,bnProcBufRes, llrRes, llrProcBuf, Z);
break; break;
} }
case 13: case 13:
{ {
nrLDPC_bnProcPc_BG2_R13_AVX2(bnProcBuf,bnProcBufRes,llrRes,llrProcBuf, Z); nrLDPC_bnProcPc_BG2_R13_AVX2(bnProcBuf,bnProcBufRes,llrRes,llrProcBuf, Z);
break; break;
} }
case 23: case 23:
{ {
nrLDPC_bnProcPc_BG2_R23_AVX2(bnProcBuf,bnProcBufRes,llrRes, llrProcBuf, Z); nrLDPC_bnProcPc_BG2_R23_AVX2(bnProcBuf,bnProcBufRes,llrRes, llrProcBuf, Z);
break; break;
} }
} }
} }
#endif
#ifdef NR_LDPC_PROFILER_DETAIL #ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->bnProcPc); stop_meas(&p_profiler->bnProcPc);
@@ -389,13 +374,12 @@ static inline uint32_t nrLDPC_decoder_core(int8_t* p_llr, int8_t* p_out, uint32_
#ifdef NR_LDPC_PROFILER_DETAIL #ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->bnProc); start_meas(&p_profiler->bnProc);
#endif #endif
// nrLDPC_bnProc(p_lut, p_procBuf, Z);
if (BG==1) {
if (BG==1) #ifndef UNROLL_BN_PROC
{ nrLDPC_bnProc(p_lut, bnProcBuf, bnProcBufRes, llrRes, Z);
switch (R) #else
{ switch (R) {
case 13: case 13:
{ {
#ifdef __AVX512BW__ #ifdef __AVX512BW__
@@ -424,11 +408,12 @@ if (BG==1)
break; break;
} }
} }
} #endif
else } else {
{ #ifndef UNROLL_BN2CN_PROC
switch (R) nrLDPC_bn2cnProcBuf_BG2(p_lut, bnProcBufRes, cnProcBuf, Z);
{ #else
switch (R) {
case 15: case 15:
{ {
#ifdef __AVX512BW__ #ifdef __AVX512BW__
@@ -439,7 +424,6 @@ if (BG==1)
break; break;
} }
case 13: case 13:
{ {
#ifdef __AVX512BW__ #ifdef __AVX512BW__
nrLDPC_bnProc_BG2_R13_AVX512(bnProcBuf, bnProcBufRes,llrRes, Z); nrLDPC_bnProc_BG2_R13_AVX512(bnProcBuf, bnProcBufRes,llrRes, Z);
@@ -450,7 +434,6 @@ if (BG==1)
} }
case 23: case 23:
{ {
#ifdef __AVX512BW__ #ifdef __AVX512BW__
nrLDPC_bnProc_BG2_R23_AVX512(bnProcBuf, bnProcBufRes,llrRes, Z); nrLDPC_bnProc_BG2_R23_AVX512(bnProcBuf, bnProcBufRes,llrRes, Z);
@@ -459,9 +442,8 @@ if (BG==1)
#endif #endif
break; break;
} }
} }
#endif
} }
#ifdef NR_LDPC_PROFILER_DETAIL #ifdef NR_LDPC_PROFILER_DETAIL
@@ -477,14 +459,8 @@ if (BG==1)
#ifdef NR_LDPC_PROFILER_DETAIL #ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->bn2cnProcBuf); start_meas(&p_profiler->bn2cnProcBuf);
#endif #endif
if (BG == 1) if (BG == 1) nrLDPC_bn2cnProcBuf_BG1(p_lut, bnProcBufRes, cnProcBuf, Z);
{ else nrLDPC_bn2cnProcBuf_BG2(p_lut, bnProcBufRes, cnProcBuf, Z);
nrLDPC_bn2cnProcBuf_BG1(p_lut, bnProcBufRes, cnProcBuf, Z);
}
else
{
nrLDPC_bn2cnProcBuf_BG2(p_lut, bnProcBufRes, cnProcBuf, Z);
}
#ifdef NR_LDPC_PROFILER_DETAIL #ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->bn2cnProcBuf); stop_meas(&p_profiler->bn2cnProcBuf);
#endif #endif
@@ -499,8 +475,7 @@ if (BG==1)
// First iteration finished // First iteration finished
while ( (i < numMaxIter) && (pcRes != 0) ) while ( (i < numMaxIter) && (pcRes != 0) ) {
{
// Increase iteration counter // Increase iteration counter
i++; i++;
@@ -508,10 +483,11 @@ if (BG==1)
#ifdef NR_LDPC_PROFILER_DETAIL #ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->cnProc); start_meas(&p_profiler->cnProc);
#endif #endif
if (BG==1) if (BG==1) {
{ #ifndef UNROLL_CN_PROC
switch (R) nrLDPC_cnProc_BG1(p_lut, cnProcBuf, cnProcBufRes, Z);
{ #else
switch (R) {
case 13: case 13:
{ {
#ifdef __AVX512BW__ #ifdef __AVX512BW__
@@ -520,8 +496,7 @@ if (BG==1)
nrLDPC_cnProc_BG1_R13_AVX2(cnProcBuf, cnProcBufRes, Z); nrLDPC_cnProc_BG1_R13_AVX2(cnProcBuf, cnProcBufRes, Z);
#endif #endif
break; break;
} }
case 23: case 23:
{ {
#ifdef __AVX512BW__ #ifdef __AVX512BW__
@@ -530,8 +505,7 @@ if (BG==1)
nrLDPC_cnProc_BG1_R23_AVX2(cnProcBuf, cnProcBufRes, Z); nrLDPC_cnProc_BG1_R23_AVX2(cnProcBuf, cnProcBufRes, Z);
#endif #endif
break; break;
} }
case 89: case 89:
{ {
#ifdef __AVX512BW__ #ifdef __AVX512BW__
@@ -540,14 +514,14 @@ if (BG==1)
nrLDPC_cnProc_BG1_R89_AVX2(cnProcBuf, cnProcBufRes, Z); nrLDPC_cnProc_BG1_R89_AVX2(cnProcBuf, cnProcBufRes, Z);
#endif #endif
break; break;
}
} }
#endif
} } else {
} #ifndef UNROLL_CN_PROC
else nrLDPC_cnProc_BG2(p_lut, cnProcBuf, cnProcBufRes, Z);
{ #else
switch (R) switch (R) {
{
case 15: case 15:
{ {
#ifdef __AVX512BW__ #ifdef __AVX512BW__
@@ -556,8 +530,7 @@ if (BG==1)
nrLDPC_cnProc_BG2_R15_AVX2(cnProcBuf, cnProcBufRes, Z); nrLDPC_cnProc_BG2_R15_AVX2(cnProcBuf, cnProcBufRes, Z);
#endif #endif
break; break;
} }
case 13: case 13:
{ {
#ifdef __AVX512BW__ #ifdef __AVX512BW__
@@ -566,8 +539,7 @@ if (BG==1)
nrLDPC_cnProc_BG2_R13_AVX2(cnProcBuf, cnProcBufRes, Z); nrLDPC_cnProc_BG2_R13_AVX2(cnProcBuf, cnProcBufRes, Z);
#endif #endif
break; break;
} }
case 23: case 23:
{ {
#ifdef __AVX512BW__ #ifdef __AVX512BW__
@@ -576,9 +548,10 @@ if (BG==1)
nrLDPC_cnProc_BG2_R23_AVX2(cnProcBuf, cnProcBufRes, Z); nrLDPC_cnProc_BG2_R23_AVX2(cnProcBuf, cnProcBufRes, Z);
#endif #endif
break; break;
} }
}
#endif
} }
}
#ifdef NR_LDPC_PROFILER_DETAIL #ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->cnProc); stop_meas(&p_profiler->cnProc);
#endif #endif
@@ -591,14 +564,8 @@ if (BG==1)
#ifdef NR_LDPC_PROFILER_DETAIL #ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->cn2bnProcBuf); start_meas(&p_profiler->cn2bnProcBuf);
#endif #endif
if (BG == 1) if (BG == 1) nrLDPC_cn2bnProcBuf_BG1(p_lut, cnProcBufRes, bnProcBuf, Z);
{ else nrLDPC_cn2bnProcBuf_BG2(p_lut, cnProcBufRes, bnProcBuf, Z);
nrLDPC_cn2bnProcBuf_BG1(p_lut, cnProcBufRes, bnProcBuf, Z);
}
else
{
nrLDPC_cn2bnProcBuf_BG2(p_lut, cnProcBufRes, bnProcBuf, Z);
}
#ifdef NR_LDPC_PROFILER_DETAIL #ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->cn2bnProcBuf); stop_meas(&p_profiler->cn2bnProcBuf);
#endif #endif
@@ -612,11 +579,11 @@ if (BG==1)
start_meas(&p_profiler->bnProcPc); start_meas(&p_profiler->bnProcPc);
#endif #endif
//nrLDPC_bnProcPc(p_lut, p_procBuf, Z); #ifndef UNROLL_BN_PROC_PC
if (BG==1) nrLDPC_bnProcPc(p_lut, bnProcBuf, bnProcBufRes, llrProcBuf, llrRes, Z);
{ #else
switch (R) if (BG==1) {
{ switch (R) {
case 13: case 13:
{ {
nrLDPC_bnProcPc_BG1_R13_AVX2(bnProcBuf,bnProcBufRes,llrRes, llrProcBuf, Z); nrLDPC_bnProcPc_BG1_R13_AVX2(bnProcBuf,bnProcBufRes,llrRes, llrProcBuf, Z);
@@ -632,36 +599,28 @@ if (BG==1)
nrLDPC_bnProcPc_BG1_R89_AVX2(bnProcBuf,bnProcBufRes, llrRes, llrProcBuf, Z); nrLDPC_bnProcPc_BG1_R89_AVX2(bnProcBuf,bnProcBufRes, llrRes, llrProcBuf, Z);
break; break;
} }
} }
} } else {
else switch (R)
{ {
switch (R)
{
case 15: case 15:
{ {
nrLDPC_bnProcPc_BG2_R15_AVX2(bnProcBuf,bnProcBufRes,llrRes, llrProcBuf, Z); nrLDPC_bnProcPc_BG2_R15_AVX2(bnProcBuf,bnProcBufRes,llrRes, llrProcBuf, Z);
break; break;
} }
case 13: case 13:
{ {
nrLDPC_bnProcPc_BG2_R13_AVX2(bnProcBuf,bnProcBufRes,llrRes, llrProcBuf, Z); nrLDPC_bnProcPc_BG2_R13_AVX2(bnProcBuf,bnProcBufRes,llrRes, llrProcBuf, Z);
break; break;
} }
case 23: case 23:
{ {
nrLDPC_bnProcPc_BG2_R23_AVX2(bnProcBuf,bnProcBufRes,llrRes, llrProcBuf, Z); nrLDPC_bnProcPc_BG2_R23_AVX2(bnProcBuf,bnProcBufRes,llrRes, llrProcBuf, Z);
break; break;
} }
}
} }
} #endif
#ifdef NR_LDPC_PROFILER_DETAIL #ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->bnProcPc); stop_meas(&p_profiler->bnProcPc);
#endif #endif
@@ -673,13 +632,11 @@ if (BG==1)
#ifdef NR_LDPC_PROFILER_DETAIL #ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->bnProc); start_meas(&p_profiler->bnProc);
#endif #endif
// nrLDPC_bnProc(p_lut, p_procBuf, Z); #ifndef UNROLL_BN_PROC
nrLDPC_bnProc(p_lut, bnProcBuf, bnProcBufRes, llrRes, Z);
#else
if (BG==1) if (BG==1) {
{ switch (R) {
switch (R)
{
case 13: case 13:
{ {
#ifdef __AVX512BW__ #ifdef __AVX512BW__
@@ -707,12 +664,10 @@ if (BG==1)
#endif #endif
break; break;
} }
} }
} } else {
else switch (R)
{ {
switch (R)
{
case 15: case 15:
{ {
#ifdef __AVX512BW__ #ifdef __AVX512BW__
@@ -723,7 +678,6 @@ if (BG==1)
break; break;
} }
case 13: case 13:
{ {
#ifdef __AVX512BW__ #ifdef __AVX512BW__
nrLDPC_bnProc_BG2_R13_AVX512(bnProcBuf, bnProcBufRes,llrRes, Z); nrLDPC_bnProc_BG2_R13_AVX512(bnProcBuf, bnProcBufRes,llrRes, Z);
@@ -732,9 +686,7 @@ if (BG==1)
#endif #endif
break; break;
} }
case 23: case 23:
{ {
#ifdef __AVX512BW__ #ifdef __AVX512BW__
nrLDPC_bnProc_BG2_R23_AVX512(bnProcBuf, bnProcBufRes,llrRes, Z); nrLDPC_bnProc_BG2_R23_AVX512(bnProcBuf, bnProcBufRes,llrRes, Z);
@@ -743,10 +695,9 @@ if (BG==1)
#endif #endif
break; break;
} }
}
} }
} #endif
@@ -762,14 +713,8 @@ if (BG==1)
#ifdef NR_LDPC_PROFILER_DETAIL #ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->bn2cnProcBuf); start_meas(&p_profiler->bn2cnProcBuf);
#endif #endif
if (BG == 1) if (BG == 1) nrLDPC_bn2cnProcBuf_BG1(p_lut, bnProcBufRes, cnProcBuf, Z);
{ else nrLDPC_bn2cnProcBuf_BG2(p_lut, bnProcBufRes, cnProcBuf, Z);
nrLDPC_bn2cnProcBuf_BG1(p_lut, bnProcBufRes, cnProcBuf, Z);
}
else
{
nrLDPC_bn2cnProcBuf_BG2(p_lut, bnProcBufRes, cnProcBuf, Z);
}
#ifdef NR_LDPC_PROFILER_DETAIL #ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->bn2cnProcBuf); stop_meas(&p_profiler->bn2cnProcBuf);
#endif #endif
@@ -778,360 +723,37 @@ if (BG==1)
nrLDPC_debug_writeBuffer2File(nrLDPC_buffers_CN_PROC, cnProcBuf); nrLDPC_debug_writeBuffer2File(nrLDPC_buffers_CN_PROC, cnProcBuf);
#endif #endif
// Parity Check // Parity Check
#ifdef NR_LDPC_ENABLE_PARITY_CHECK #ifdef NR_LDPC_ENABLE_PARITY_CHECK
#ifdef NR_LDPC_PROFILER_DETAIL #ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->cnProcPc); start_meas(&p_profiler->cnProcPc);
#endif #endif
if (BG == 1) if (BG == 1) pcRes = nrLDPC_cnProcPc_BG1(p_lut, cnProcBuf, cnProcBufRes, Z);
{ else pcRes = nrLDPC_cnProcPc_BG2(p_lut, cnProcBuf, cnProcBufRes, Z);
pcRes = nrLDPC_cnProcPc_BG1(p_lut, cnProcBuf, cnProcBufRes, Z);
}
else
{
pcRes = nrLDPC_cnProcPc_BG2(p_lut, cnProcBuf,cnProcBufRes, Z);
}
#ifdef NR_LDPC_PROFILER_DETAIL #ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->cnProcPc); stop_meas(&p_profiler->cnProcPc);
#endif #endif
#endif #endif
} } // end while
// Last iteration
if ( (i < numMaxIter) && (pcRes != 0) )
{
// Increase iteration counter
i++;
// CN processing
#ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->cnProc);
#endif
if (BG==1)
{
switch (R)
{
case 13:
{
#ifdef __AVX512BW__
nrLDPC_cnProc_BG1_R13_AVX512( cnProcBuf, cnProcBufRes, Z);
#else
nrLDPC_cnProc_BG1_R13_AVX2( cnProcBuf, cnProcBufRes, Z);
#endif
break;
}
case 23:
{
#ifdef __AVX512BW__
nrLDPC_cnProc_BG1_R23_AVX512( cnProcBuf, cnProcBufRes, Z);
#else
nrLDPC_cnProc_BG1_R23_AVX2( cnProcBuf, cnProcBufRes, Z);
#endif
break;
}
case 89:
{
#ifdef __AVX512BW__
nrLDPC_cnProc_BG1_R89_AVX512( cnProcBuf, cnProcBufRes, Z);
#else
nrLDPC_cnProc_BG1_R89_AVX2( cnProcBuf, cnProcBufRes, Z);
#endif
break;
}
}
}
else
{
switch (R)
{
case 15:
{
#ifdef __AVX512BW__
nrLDPC_cnProc_BG2_R15_AVX512( cnProcBuf, cnProcBufRes, Z);
#else
nrLDPC_cnProc_BG2_R15_AVX2( cnProcBuf, cnProcBufRes, Z);
#endif
break;
}
case 13:
{
#ifdef __AVX512BW__
nrLDPC_cnProc_BG2_R13_AVX512( cnProcBuf, cnProcBufRes, Z);
#else
nrLDPC_cnProc_BG2_R13_AVX2( cnProcBuf, cnProcBufRes, Z);
#endif
break;
}
case 23:
{
#ifdef __AVX512BW__
nrLDPC_cnProc_BG2_R23_AVX512( cnProcBuf, cnProcBufRes, Z);
#else
nrLDPC_cnProc_BG2_R23_AVX2( cnProcBuf, cnProcBufRes, Z);
#endif
break;
}
}
}
#ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->cnProc);
#endif
#ifdef NR_LDPC_DEBUG_MODE
nrLDPC_debug_writeBuffer2File(nrLDPC_buffers_CN_PROC_RES, p_procBuf);
#endif
// Send CN results back to BNs
#ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->cn2bnProcBuf);
#endif
if (BG == 1)
{
nrLDPC_cn2bnProcBuf_BG1(p_lut, cnProcBufRes, bnProcBuf, Z);
}
else
{
nrLDPC_cn2bnProcBuf_BG2(p_lut, cnProcBufRes, bnProcBuf, Z);
}
#ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->cn2bnProcBuf);
#endif
#ifdef NR_LDPC_DEBUG_MODE
nrLDPC_debug_writeBuffer2File(nrLDPC_buffers_BN_PROC, p_procBuf);
#endif
// BN Processing
#ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->bnProcPc);
#endif
// nrLDPC_bnProcPc(p_lut, p_procBuf, Z);
if (BG==1)
{
switch (R)
{
case 13:
{
nrLDPC_bnProcPc_BG1_R13_AVX2( bnProcBuf,bnProcBufRes,llrRes, llrProcBuf, Z);
break;
}
case 23:
{
nrLDPC_bnProcPc_BG1_R23_AVX2( bnProcBuf,bnProcBufRes, llrRes, llrProcBuf, Z);
break;
}
case 89:
{
nrLDPC_bnProcPc_BG1_R89_AVX2( bnProcBuf,bnProcBufRes, llrRes, llrProcBuf, Z);
break;
}
}
}
else
{
switch (R)
{
case 15:
{
nrLDPC_bnProcPc_BG2_R15_AVX2( bnProcBuf,bnProcBufRes, llrRes, llrProcBuf, Z);
break;
}
case 13:
{
nrLDPC_bnProcPc_BG2_R13_AVX2( bnProcBuf,bnProcBufRes,llrRes, llrProcBuf, Z);
break;
}
case 23:
{
nrLDPC_bnProcPc_BG2_R23_AVX2( bnProcBuf,bnProcBufRes,llrRes, llrProcBuf, Z);
break;
}
}
}
#ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->bnProcPc);
#endif
#ifdef NR_LDPC_DEBUG_MODE
nrLDPC_debug_writeBuffer2File(nrLDPC_buffers_LLR_RES, p_procBuf);
#endif
// If parity check not enabled, no need to send the BN proc results
// back to CNs
#ifdef NR_LDPC_ENABLE_PARITY_CHECK
#ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->bnProc);
#endif
//nrLDPC_bnProc(p_lut, p_procBuf, Z);
if (BG==1)
{
switch (R)
{
case 13:
{
#ifdef __AVX512BW__
nrLDPC_bnProc_BG1_R13_AVX512( bnProcBuf, bnProcBufRes,llrRes, Z);
#else
nrLDPC_bnProc_BG1_R13_AVX2( bnProcBuf, bnProcBufRes,llrRes, Z);
#endif
break;
}
case 23:
{
#ifdef __AVX512BW__
nrLDPC_bnProc_BG1_R23_AVX512( bnProcBuf, bnProcBufRes,llrRes, Z);
#else
nrLDPC_bnProc_BG1_R23_AVX2( bnProcBuf, bnProcBufRes,llrRes, Z);
#endif
break;
}
case 89:
{
#ifdef __AVX512BW__
nrLDPC_bnProc_BG1_R89_AVX512( bnProcBuf, bnProcBufRes,llrRes, Z);
#else
nrLDPC_bnProc_BG1_R89_AVX2( bnProcBuf, bnProcBufRes,llrRes, Z);
#endif
break;
}
}
}
else
{
switch (R)
{
case 15:
{
#ifdef __AVX512BW__
nrLDPC_bnProc_BG2_R15_AVX512( bnProcBuf, bnProcBufRes,llrRes, Z);
#else
nrLDPC_bnProc_BG2_R15_AVX2( bnProcBuf, bnProcBufRes,llrRes, Z);
#endif
break;
}
case 13:
{
#ifdef __AVX512BW__
nrLDPC_bnProc_BG2_R13_AVX512( bnProcBuf, bnProcBufRes,llrRes, Z);
#else
nrLDPC_bnProc_BG2_R13_AVX2( bnProcBuf, bnProcBufRes,llrRes, Z);
#endif
break;
}
case 23:
{
#ifdef __AVX512BW__
nrLDPC_bnProc_BG2_R23_AVX512( bnProcBuf, bnProcBufRes,llrRes, Z);
#else
nrLDPC_bnProc_BG2_R23_AVX2( bnProcBuf, bnProcBufRes,llrRes, Z);
#endif
break;
}
}
}
#ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->bnProc);
#endif
#ifdef NR_LDPC_DEBUG_MODE
nrLDPC_debug_writeBuffer2File(nrLDPC_buffers_BN_PROC_RES, p_procBuf);
#endif
// BN results to CN processing buffer
#ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->bn2cnProcBuf);
#endif
if (BG == 1)
{
nrLDPC_bn2cnProcBuf_BG1(p_lut, bnProcBufRes, cnProcBuf, Z);
}
else
{
nrLDPC_bn2cnProcBuf_BG2(p_lut, bnProcBufRes, cnProcBuf, Z);
}
#ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->bn2cnProcBuf);
#endif
#ifdef NR_LDPC_DEBUG_MODE
nrLDPC_debug_writeBuffer2File(nrLDPC_buffers_CN_PROC, p_procBuf);
#endif
// Parity Check
#ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->cnProcPc);
#endif
if (BG == 1)
{
pcRes = nrLDPC_cnProcPc_BG1(p_lut, cnProcBuf, cnProcBufRes, Z);
}
else
{
pcRes = nrLDPC_cnProcPc_BG2(p_lut, cnProcBuf, cnProcBufRes, Z);
}
#ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->cnProcPc);
#endif
#endif
}
// If maximum number of iterations reached an PC still fails increase number of iterations
// Thus, i > numMaxIter indicates that PC has failed
#ifdef NR_LDPC_ENABLE_PARITY_CHECK
if (pcRes != 0)
{
i++;
}
#endif
// Last iteration
if (pcRes != 0) i++;
// Assign results from processing buffer to output // Assign results from processing buffer to output
#ifdef NR_LDPC_PROFILER_DETAIL #ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->llrRes2llrOut); start_meas(&p_profiler->llrRes2llrOut);
#endif #endif
nrLDPC_llrRes2llrOut(p_lut, p_llrOut, llrRes, Z, BG); nrLDPC_llrRes2llrOut(p_lut, p_llrOut, llrRes, Z, BG);
#ifdef NR_LDPC_PROFILER_DETAIL #ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->llrRes2llrOut); stop_meas(&p_profiler->llrRes2llrOut);
#endif #endif
// Hard-decision // Hard-decision
#ifdef NR_LDPC_PROFILER_DETAIL #ifdef NR_LDPC_PROFILER_DETAIL
start_meas(&p_profiler->llr2bit); start_meas(&p_profiler->llr2bit);
#endif #endif
if (outMode == nrLDPC_outMode_BIT) if (outMode == nrLDPC_outMode_BIT) nrLDPC_llr2bitPacked(p_out, p_llrOut, numLLR);
{ else //if (outMode == nrLDPC_outMode_BITINT8)
nrLDPC_llr2bitPacked(p_out, p_llrOut, numLLR); nrLDPC_llr2bit(p_out, p_llrOut, numLLR);
}
else if (outMode == nrLDPC_outMode_BITINT8)
{
nrLDPC_llr2bit(p_out, p_llrOut, numLLR);
}
#ifdef NR_LDPC_PROFILER_DETAIL #ifdef NR_LDPC_PROFILER_DETAIL
stop_meas(&p_profiler->llr2bit); stop_meas(&p_profiler->llr2bit);
#endif #endif
@@ -41,15 +41,6 @@
\param Z Lifting size \param Z Lifting size
\param cshift Circular shift \param cshift Circular shift
*/ */
//more faster memcpy by using "rep movsb", which on modern processors is highly optimized
void *memcpy1(void *dst, const void *src, size_t n)
{
void *ret = dst;
asm volatile("rep movsb" : "+D" (dst) : "c"(n), "S"(src) : "cc", "memory");
return ret;
}
static inline void *nrLDPC_inv_circ_memcpy(int8_t *str1, const int8_t *str2, uint16_t Z, uint16_t cshift) static inline void *nrLDPC_inv_circ_memcpy(int8_t *str1, const int8_t *str2, uint16_t Z, uint16_t cshift)
{ {
File diff suppressed because it is too large Load Diff
@@ -96,7 +96,7 @@ void nrLDPC_cnProc_BG1_generator_AVX2(const char* dir, int R)
// for (i=0; i<M; i++,iprime++) // for (i=0; i<M; i++,iprime++)
// { // {
fprintf(fd," for (int i=0;i<M;i+=2) {\n"); fprintf(fd," for (int i=0;i<M;i++) {\n");
// Abs and sign of 32 CNs (first BN) // Abs and sign of 32 CNs (first BN)
// ymm0 = p_cnProcBuf[lut_idxCnProcG3[j][0] + i]; // ymm0 = p_cnProcBuf[lut_idxCnProcG3[j][0] + i];
fprintf(fd," ymm0 = ((__m256i*)cnProcBuf)[%d+i];\n",(lut_startAddrCnGroups[0]>>5)+lut_idxCnProcG3[j][0]); fprintf(fd," ymm0 = ((__m256i*)cnProcBuf)[%d+i];\n",(lut_startAddrCnGroups[0]>>5)+lut_idxCnProcG3[j][0]);