maki/openairinterface5g
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

change runtime to compilation time detection of carryless mul

Browse Source
This commit is contained in:
Laurent THOMAS
2021-12-09 16:08:34 +01:00
parent 9f81391642
commit 301a008cef
2 changed files with 22 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files
cmake_targets/CMakeLists.txt
+3 -3
View File
@@ -294,7 +294,7 @@ else (CMAKE_SYSTEM_PROCESSOR STREQUAL "armv7l")
set(COMPILATION_AVX2 "False")
endif()
if (CPUINFO MATCHES "sse4_1")
set(C_FLAGS_PROCESSOR "${C_FLAGS_PROCESSOR} -msse4.1")
set(C_FLAGS_PROCESSOR "${C_FLAGS_PROCESSOR} -msse4.1 -mpclmul")
endif()
if (CPUINFO MATCHES "ssse3")
set(C_FLAGS_PROCESSOR "${C_FLAGS_PROCESSOR} -mssse3")
@@ -322,9 +322,9 @@ add_definitions("-DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAV
set(commonOpts "-pipe -Wno-packed-bitfield-compat -fPIC -Wall -fno-strict-aliasing -rdynamic")
set(CMAKE_C_FLAGS
"${CMAKE_C_FLAGS} ${C_FLAGS_PROCESSOR} ${commonOpts} -std=gnu99 -funroll-loops -mpclmul")
"${CMAKE_C_FLAGS} ${C_FLAGS_PROCESSOR} ${commonOpts} -std=gnu99 -funroll-loops")
set(CMAKE_CXX_FLAGS
"${CMAKE_CXX_FLAGS} ${C_FLAGS_PROCESSOR} ${commonOpts} -std=c++11 -mpclmul")
"${CMAKE_CXX_FLAGS} ${C_FLAGS_PROCESSOR} ${commonOpts} -std=c++11")
openair1/PHY/CODING/crc_byte.c
+19 -5
View File
@@ -30,10 +30,13 @@
Modified in June, 2001, to include the length non multiple of 8
*/
#define USE_INTEL_CRC __SSE4_1__
#include "coding_defs.h"
#include "assertions.h"
#ifdef USE_INTEL_CRC
#include "crc.h"
#endif
/*ref 36-212 v8.6.0 , pp 8-9 */
/* the highest degree is set by default */
@@ -94,6 +97,7 @@ static unsigned short crc11Table[256];
static unsigned char crc8Table[256];
static unsigned char crc6Table[256];
#ifdef USE_INTEL_CRC
static DECLARE_ALIGNED(struct crc_pclmulqdq_ctx lte_crc24a_pclmulqdq, 16) = {
0x64e4d700, /**< k1 */
0x2c8c9d00, /**< k2 */
@@ -113,6 +117,7 @@ DECLARE_ALIGNED(const uint8_t crc_xmm_shift_tab[48], 16) = {
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
};
#endif
void crcTableInit (void)
{
@@ -128,10 +133,11 @@ void crcTableInit (void)
crc8Table[c] = (unsigned char) (crcbit (&c, 1, poly8) >> 24);
crc6Table[c] = (unsigned char) (crcbit (&c, 1, poly6) >> 24);
} while (++c);
if (__builtin_cpu_supports ("pclmul"))
#ifdef USE_INTEL_CRC
crc_xmm_be_le_swap128 = _mm_setr_epi32(0x0c0d0e0f, 0x08090a0b,
0x04050607, 0x00010203);
#endif
}
/*********************************************************
@@ -146,7 +152,7 @@ unsigned int crc24a (unsigned char * inptr,
{
int octetlen = bitlen / 8; /* Change in octets */
if ( bitlen % 8 || !__builtin_cpu_supports ("pclmul") ) {
if ( bitlen % 8 || !USE_INTEL_CRC ) {
unsigned int crc = 0;
int resbit= (bitlen % 8);
@@ -158,13 +164,17 @@ unsigned int crc24a (unsigned char * inptr,
if (resbit > 0)
crc = (crc << resbit) ^ crc24aTable[((*inptr) >> (8 - resbit)) ^ (crc >> (32 - resbit))];
return crc;
} else {
}
#if USE_INTEL_CRC
else {
return crc32_calc_pclmulqdq(inptr, octetlen, 0,
&lte_crc24a_pclmulqdq);
}
#endif
}
#ifdef USE_INTEL_CRC
static DECLARE_ALIGNED(struct crc_pclmulqdq_ctx lte_crc24b_pclmulqdq, 16) = {
0x80140500, /**< k1 */
0x42000100, /**< k2 */
@@ -173,12 +183,13 @@ static DECLARE_ALIGNED(struct crc_pclmulqdq_ctx lte_crc24b_pclmulqdq, 16) = {
0x80006300, /**< p */
0ULL /**< res */
};
#endif
unsigned int crc24b (unsigned char * inptr,
int bitlen)
{
int octetlen = bitlen / 8; /* Change in octets */
if ( bitlen % 8 || !__builtin_cpu_supports ("pclmul") ) {
if ( bitlen % 8 || !USE_INTEL_CRC ) {
unsigned int crc = 0;
int resbit = (bitlen % 8);
@@ -191,10 +202,13 @@ unsigned int crc24b (unsigned char * inptr,
crc = (crc << resbit) ^ crc24bTable[((*inptr) >> (8 - resbit)) ^ (crc >> (32 - resbit))];
return crc;
} else {
}
#if USE_INTEL_CRC
else {
return crc32_calc_pclmulqdq(inptr, octetlen, 0,
&lte_crc24b_pclmulqdq);
}
#endif
}
unsigned int crc24c (unsigned char * inptr,