Added support for ARM NEON, lots of changes in openair1 and some in cmake_targets

git-svn-id: http://svn.eurecom.fr/openair4G/trunk@7543 818b1a75-f10b-46b9-bf7c-635c3b92a50f

cmake_targets/CMakeLists.txt

@@ -126,7 +126,7 @@ add_list_string_option(CMAKE_BUILD_TYPE "RelWithDebInfo" "Choose the type of bui
 
 Message("Architecture is ${CMAKE_SYSTEM_PROCESSOR}")
 if (CMAKE_SYSTEM_PROCESSOR STREQUAL "armv7l")
-  set(C_FLAGS_PROCESSOR "-mfloat-abi=softfp -mfpu=neon")
+  set(C_FLAGS_PROCESSOR "-gdwarf-2 -mfloat-abi=hard -mfpu=neon -lgcc -lrt")
 else (CMAKE_SYSTEM_PROCESSOR STREQUAL "armv7l")
   set(C_FLAGS_PROCESSOR "-msse4.2")
 endif()
@@ -140,8 +140,8 @@ set(CMAKE_C_FLAGS
 # set a flag for changes in the source code
 # these changes are related to hardcoded path to include .h files
 add_definitions(-DCMAKER)
-set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS} -ggdb -DMALLOC_CHECK_=3")
-set(CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS} -ggdb -DMALLOC_CHECK_=3 -O2") 
+set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS} -g -DMALLOC_CHECK_=3")
+set(CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS} -g -DMALLOC_CHECK_=3 -O2") 
 
 # Below has been put in comment because does not work with
 # SVN authentication.
@@ -778,7 +778,6 @@ set(PHY_SRC
   ${OPENAIR1_DIR}/PHY/TOOLS/log2_approx.c
   ${OPENAIR1_DIR}/PHY/TOOLS/cmult_sv.c
   ${OPENAIR1_DIR}/PHY/TOOLS/cmult_vv.c
-  ${OPENAIR1_DIR}/PHY/TOOLS/cadd_vv.c
   ${OPENAIR1_DIR}/PHY/TOOLS/cdot_prod.c
   ${OPENAIR1_DIR}/PHY/TOOLS/signal_energy.c
   ${OPENAIR1_DIR}/PHY/TOOLS/dB_routines.c
@@ -1692,7 +1691,7 @@ foreach(myExe dlsim ulsim pbchsim scansim mbmssim pdcchsim pucchsim prachsim syn
     ${XFORMS_SOURCE}
     )
   target_link_libraries (${myExe}
-    -Wl,--start-group SIMU UTIL SCHED_LIB PHY LFDS MSC ${ITTI_LIB} -Wl,--end-group
+    -Wl,--start-group SIMU UTIL SCHED_LIB PHY LFDS ${ITTI_LIB} -Wl,--end-group
     pthread m rt ${CONFIG_LIBRARIES} ${ATLAS_LIBRARIES} ${XFORMS_LIBRARIES}
     )
 endforeach(myExe)

cmake_targets/lte-simulators/CMakeLists.txt

@@ -10,5 +10,6 @@ set(RANDOM_BF False)
 set(PBS_SIM False)
 set(PERFECT_CE False)
 set(NAS_UE False)
+set(MESSAGE_CHART_GENERATOR False)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/../CMakeLists.txt)

openair1/PHY/CODING/3gpplte.c

@@ -31,8 +31,9 @@
    author: raymond.knopp@eurecom.fr
    date: 10.2009
 */
-#include "defs.h"
-//#include "lte_interleaver_inline.h"
+#ifndef TC_MAIN
+//#include "defs.h"
+#endif
 
 #include "extern_3GPPinterleaver.h"
 

openair1/PHY/CODING/Makefile

-TURBO_SRC    = 3gpplte.c 3gpplte_turbo_decoder_sse.c crc_byte.c
+TURBO_SRC    = 3gpplte_sse.c 3gpplte_turbo_decoder_sse.c crc_byte.c
 RATE13CC_SRC = ccoding_byte_lte.c viterbi_lte.c crc_byte.c
 RATE12CC_SRC = ccoding_byte.c viterbi.c crc_byte.c
 
-all: turbolte_test rate13cc_test rate12cc_test run_turbo run_rate13cc run_rate13ccdab run_rate12cc
+all: 3gpplte_sse 
 
-turbolte_test: $(TURBO_SRC)
-	gcc -o turbo_test $(TURBO_SRC)  -DTEST_DEBUG -DUSER_MODE -msse2 -mssse3 -Wall
+3gpplte_sse: $(TURBO_SRC)
+	gcc -o 3gpplte_sse 3gpplte_sse.c -msse4 -Wall -g -ggdb -DMAIN
 
-rate13cc_test: $(RATE13CC_SRC)
-	gcc -o rate13cc_test $(RATE13CC_SRC)  -DTEST_DEBUG -DUSER_MODE -msse2 -mssse3 -Wall
 
-rate12cc_test: $(RATE12CC_SRC)
-	gcc -o rate12cc_test $(RATE12CC_SRC)  -DTEST_DEBUG -DUSER_MODE -msse2 -mssse3 -Wall
-
-run_turbo: turbolte_test
-	./turbo_test
-
-run_rate13cc: rate13cc_test
-	./rate13cc_test
-
-run_rate13ccdab: rate13cc_test
-	./rate13cc_test -d
-
-run_rate12cc: rate12cc_test
-	./rate12cc_test
 
 clean: 
 	rm *.o

openair1/PHY/CODING/ccoding_byte_lte.c

@@ -55,22 +55,22 @@ unsigned char  ccodelte_table_rev[128];  // for receiver
 
 
 void
-ccodelte_encode (unsigned int numbits,
-                 unsigned char add_crc,
-                 unsigned char *inPtr,
-                 unsigned char *outPtr,
-                 unsigned short rnti)
+ccodelte_encode (int32_t numbits,
+                 uint8_t add_crc,
+                 uint8_t *inPtr,
+                 uint8_t *outPtr,
+                 uint16_t rnti)
 {
-  unsigned int             state;
+  uint32_t             state;
 
-  unsigned char              c, out, first_bit;
-  char shiftbit=0;
-  unsigned short c16;
-  unsigned short next_last_byte=0;
-  unsigned int crc=0;
+  uint8_t              c, out, first_bit;
+  int8_t shiftbit=0;
+  uint16_t c16;
+  uint16_t next_last_byte=0;
+  uint32_t crc=0;
 
 #ifdef DEBUG_CCODE
-  unsigned int  dummy=0;
+  uint32_t  dummy=0;
 #endif //DEBUG_CCODE
 
   /* The input bit is shifted in position 8 of the state.
@@ -80,20 +80,19 @@ ccodelte_encode (unsigned int numbits,
   if (add_crc == 1) {
     crc = crc8(inPtr,numbits);
     first_bit      = 2;
-    c = (unsigned char)(crc>>24);
+    c = (uint8_t)(crc>>24);
   } else if (add_crc == 2) {
     crc = crc16(inPtr,numbits);
 #ifdef DEBUG_CCODE
     printf("ccode_lte : crc %x\n",crc);
 #endif
     // scramble with RNTI
-    crc ^= (((unsigned int)rnti)<<16);
+    crc ^= (((uint32_t)rnti)<<16);
 #ifdef DEBUG_CCODE
     printf("ccode_lte : crc %x (rnti %x)\n",crc,rnti);
 #endif
     first_bit      = 2;
-    //    c = (unsigned char)(crc>>24);
-    c = (unsigned char)((crc>>16)&0xff);
+    c = (uint8_t)((crc>>16)&0xff);
   } else {
     next_last_byte = numbits>>3;
     first_bit      = (numbits-6)&7;
@@ -182,7 +181,7 @@ ccodelte_encode (unsigned int numbits,
   // now code 8-bit CRC for UCI
   if (add_crc == 1) {
 
-    c = (unsigned char)(crc>>24);
+    c = (uint8_t)(crc>>24);
 
     //    for (shiftbit = 0; (shiftbit<8);shiftbit++) {
     for (shiftbit = 7; (shiftbit>=0); shiftbit--) {
@@ -209,7 +208,7 @@ ccodelte_encode (unsigned int numbits,
   // now code 16-bit CRC for DCI
   if (add_crc == 2) {
 
-    c16 = (unsigned short)(crc>>16);
+    c16 = (uint16_t)(crc>>16);
 
     //    for (shiftbit = 0; (shiftbit<16);shiftbit++) {
     for (shiftbit = 15; (shiftbit>=0); shiftbit--) {

openair1/PHY/CODING/defs.h

@@ -320,7 +320,7 @@ void threegpplte_turbo_encoder(uint8_t *input,
                                uint16_t interleaver_f2);
 
 
-/** \fn void ccodelte_encode(uint32_t numbits,uint8_t add_crc, uint8_t *inPtr,uint8_t *outPtr,uint16_t rnti)
+/** \fn void ccodelte_encode(int32_t numbits,uint8_t add_crc, uint8_t *inPtr,uint8_t *outPtr,uint16_t rnti)
 \brief This function implements the LTE convolutional code of rate 1/3
   with a constraint length of 7 bits. The inputs are bit packed in octets
 (from MSB to LSB). Trellis tail-biting is included here.
@@ -331,7 +331,7 @@ void threegpplte_turbo_encoder(uint8_t *input,
 @param rnti RNTI for CRC scrambling
 */
 void
-ccodelte_encode (uint32_t numbits,
+ccodelte_encode (int32_t numbits,
                  uint8_t add_crc,
                  uint8_t *inPtr,
                  uint8_t *outPtr,

openair1/PHY/CODING/viterbi.c

@@ -33,9 +33,8 @@
 */
 
 
-#ifndef EXPRESSMIMO_TARGET
+
 #include "PHY/sse_intrin.h"
-#endif //EXPRESSMIMO_TARGET
 
 extern unsigned char ccodedot11_table[128],ccodedot11_table_rev[128];
 
@@ -46,12 +45,6 @@ static unsigned char inputs[64][2048];
 static unsigned short survivors[64][2048];
 static short partial_metrics[64],partial_metrics_new[64];
 
-#ifdef __KERNEL__
-#define printf rt_printk
-#endif
-
-#ifndef EXPRESSMIMO_TARGET
-
 void phy_viterbi_dot11(char *y,unsigned char *decoded_bytes,unsigned short n)
 {
 
@@ -191,22 +184,34 @@ void phy_generate_viterbi_tables(void)
 
 
 #define INIT0 0x00000080
-#define RESCALE 0x00000040
-
-
-static  __m128i  __attribute__((aligned(16))) TB[4*4095*8];
 
-static  __m128i metrics0_15,metrics16_31,metrics32_47,metrics48_63,even0_30a,even0_30b,even32_62a,even32_62b,odd1_31a,odd1_31b,odd33_63a,odd33_63b,TBeven0_30,TBeven32_62,TBodd1_31,
-        TBodd33_63 __attribute__((aligned(16)));
 
-static  __m128i rescale,min_state,min_state2 __attribute__((aligned(16)));
 
 void phy_viterbi_dot11_sse2(char *y,unsigned char *decoded_bytes,unsigned short n,int offset, int traceback )
 {
 
+#if defined(__x86_64__) || defined(__i386__)
+  __m128i  TB[4*4095*8]; // 4 __m128i per input bit (64 states, 8-bits per state = 16-way), 4095 is largest packet size in bytes, 8 bits/byte
+
+  __m128i metrics0_15,metrics16_31,metrics32_47,metrics48_63,even0_30a,even0_30b,even32_62a,even32_62b,odd1_31a,odd1_31b,odd33_63a,odd33_63b,TBeven0_30,TBeven32_62,TBodd1_31,TBodd33_63;
+
+  __m128i min_state,min_state2;
+
 
   __m128i *m0_ptr,*m1_ptr,*TB_ptr = &TB[offset<<2];
 
+#elif defined(__arm__)
+  uint8x16x2_t TB[2*4095*8];  // 2 int8x16_t per input bit, 8 bits / byte, 4095 is largest packet size in bytes
+
+  uint8x16_t even0_30a,even0_30b,even32_62a,even32_62b,odd1_31a,odd1_31b,odd33_63a,odd33_63b,TBeven0_30,TBeven32_62,TBodd1_31,TBodd33_63;
+  uint8x16x2_t metrics0_31,metrics32_63;
+
+  uint8x16_t min_state;
+
+  uint8x16_t *m0_ptr,*m1_ptr;
+  uint8x16x2_t *TB_ptr = &TB[offset<<1];
+
+#endif
 
   char *in = y;
   unsigned char prev_state0;
@@ -216,6 +221,7 @@ void phy_viterbi_dot11_sse2(char *y,unsigned char *decoded_bytes,unsigned short
   short position;
 
   //  printf("offset %d, TB_ptr %p\n",offset,TB_ptr);
+#if defined(__x86_64__) || defined(__i386__)
   if (offset == 0) {
     // set initial metrics
 
@@ -225,129 +231,64 @@ void phy_viterbi_dot11_sse2(char *y,unsigned char *decoded_bytes,unsigned short
     metrics48_63 = _mm_setzero_si128();
   }
 
-  rescale = _mm_cvtsi32_si128(RESCALE);
+#elif defined(__arm__)
+  if (offset == 0) {
+    // set initial metrics
 
-  /*
-  print_bytes(metrics0_15,"metrics0_15");
-  print_bytes(metrics16_31,"metrics16_31");
-  print_bytes(metrics32_47,"metrics32_47");
-  print_bytes(metrics48_63,"metrics48_63");
-  */
+    metrics0_31.val[0]  = vdupq_n_u8(0); metrics0_31.val[0] = vsetq_lane_u8(INIT0,metrics0_31.val[0],0);
+    metrics0_31.val[1]  = vdupq_n_u8(0);
+    metrics32_63.val[0] = vdupq_n_u8(0);
+    metrics32_63.val[1] = vdupq_n_u8(0);
+  }
 
 
-  for (position=offset; position<(offset+n); position++) {
+#endif
 
+  for (position=offset; position<(offset+n); position++) {
 
     //printf("%d : (%d,%d)\n",position,in[0],in[1]);
 
     // get branch metric offsets for the 64 states
     table_offset = (in[0]+8 + ((in[1]+8)<<4))<<6;
 
-    //    printf("Table_offset = %u (in[0]=%d,in[1]=%d)\n",table_offset,in[0],in[1]);
-
+#if defined(__x86_64__) || defined(__i386__)
     m0_ptr = (__m128i *)&m0_table[table_offset];
     m1_ptr = (__m128i *)&m1_table[table_offset];
 
-    //    printf("\n");
 
     // even states
     even0_30a  = _mm_adds_epu8(metrics0_15,m0_ptr[0]);
-    //    print_bytes(even0_30a,"even0_30a");
-
     even32_62a = _mm_adds_epu8(metrics16_31,m0_ptr[1]);
-    //    print_bytes(even32_62a,"even32_62a");
-
     even0_30b  = _mm_adds_epu8(metrics32_47,m0_ptr[2]);
-    //    print_bytes(even0_30b,"even0_30b");
-
     even32_62b = _mm_adds_epu8(metrics48_63,m0_ptr[3]);
-    //    print_bytes(even32_62b,"even32_62b");
-
-    //    printf("\n");
 
     // odd states
     odd1_31a   = _mm_adds_epu8(metrics0_15,m1_ptr[0]);
-
-    //    print_bytes(odd1_31a,"odd1_31a");
-
     odd33_63a  = _mm_adds_epu8(metrics16_31,m1_ptr[1]);
-
-    //    print_bytes(odd33_63a,"odd33_63a");
-
     odd1_31b   = _mm_adds_epu8(metrics32_47,m1_ptr[2]);
-
-    //    print_bytes(odd1_31b,"odd1_31b");
-
     odd33_63b  = _mm_adds_epu8(metrics48_63,m1_ptr[3]);
-
-    //    print_bytes(odd33_63b,"odd33_63b");
-
-
-
-
     // select maxima
-    //    printf("\n");
-
     even0_30a  = _mm_max_epu8(even0_30a,even0_30b);
-
-    //    print_bytes(even0_30a,"even0_30a");
-
     even32_62a = _mm_max_epu8(even32_62a,even32_62b);
-
-    //    print_bytes(even32_62a,"even32_62a");
-
     odd1_31a   = _mm_max_epu8(odd1_31a,odd1_31b);
-
-    //    print_bytes(odd1_31a,"odd1_31a");
-
     odd33_63a  = _mm_max_epu8(odd33_63a,odd33_63b);
 
-    //    print_bytes(odd33_63a,"odd33_63a");
-
-    //    printf("\n");
     // Traceback information
-
     TBeven0_30  = _mm_cmpeq_epi8(even0_30a,even0_30b);
-
-
     TBeven32_62 = _mm_cmpeq_epi8(even32_62a,even32_62b);
-
-
     TBodd1_31   = _mm_cmpeq_epi8(odd1_31a,odd1_31b);
-
-
     TBodd33_63  = _mm_cmpeq_epi8(odd33_63a,odd33_63b);
 
-
     metrics0_15        = _mm_unpacklo_epi8(even0_30a ,odd1_31a);
     metrics16_31       = _mm_unpackhi_epi8(even0_30a ,odd1_31a);
     metrics32_47       = _mm_unpacklo_epi8(even32_62a,odd33_63a);
     metrics48_63       = _mm_unpackhi_epi8(even32_62a,odd33_63a);
 
-
-    //print_bytes(metrics0_15,"metrics0_15");
-    //print_bytes(metrics16_31,"metrics16_31");
-    //print_bytes(metrics32_47,"metrics32_47");
-    //print_bytes(metrics48_63,"metrics48_63");
-
-
-
-    TB_ptr[0]  = _mm_unpacklo_epi8(TBeven0_30,TBodd1_31);
-
-    //    print_bytes(TB_ptr[0],"TB0_15");
-
+    TB_ptr[0] = _mm_unpacklo_epi8(TBeven0_30,TBodd1_31);
     TB_ptr[1] = _mm_unpackhi_epi8(TBeven0_30,TBodd1_31);
-
-    //    print_bytes(TB_ptr[1],"TB16_31");
-
     TB_ptr[2] = _mm_unpacklo_epi8(TBeven32_62,TBodd33_63);
-
-    //    print_bytes(TB_ptr[2],"TB32_47");
-
     TB_ptr[3] = _mm_unpackhi_epi8(TBeven32_62,TBodd33_63);
 
-    //    print_bytes(TB_ptr[3],"TB48_63");
-
     in+=2;
     TB_ptr += 4;
 
@@ -359,50 +300,92 @@ void phy_viterbi_dot11_sse2(char *y,unsigned char *decoded_bytes,unsigned short
     min_state =_mm_min_epu8(min_state,metrics32_47);
     min_state =_mm_min_epu8(min_state,metrics48_63);
 
-    //    print_bytes(min_state,"min_state");
 
     min_state2 = min_state;
     min_state  = _mm_unpacklo_epi8(min_state,min_state);
     min_state2 = _mm_unpackhi_epi8(min_state2,min_state2);
     min_state  = _mm_min_epu8(min_state,min_state2);
 
-    //    print_bytes(min_state,"min_state");
-
     min_state2 = min_state;
     min_state  = _mm_unpacklo_epi8(min_state,min_state);
     min_state2 = _mm_unpackhi_epi8(min_state2,min_state2);
     min_state  = _mm_min_epu8(min_state,min_state2);
 
-    //    print_bytes(min_state,"min_state");
-
     min_state2 = min_state;
     min_state  = _mm_unpacklo_epi8(min_state,min_state);
     min_state2 = _mm_unpackhi_epi8(min_state2,min_state2);
     min_state  = _mm_min_epu8(min_state,min_state2);
 
-    //    print_bytes(min_state,"min_state");
-
     min_state2 = min_state;
     min_state  = _mm_unpacklo_epi8(min_state,min_state);
     min_state2 = _mm_unpackhi_epi8(min_state2,min_state2);
     min_state  = _mm_min_epu8(min_state,min_state2);
 
-    //    print_bytes(min_state,"min_state");
-
     metrics0_15  = _mm_subs_epu8(metrics0_15,min_state);
     metrics16_31 = _mm_subs_epu8(metrics16_31,min_state);
     metrics32_47 = _mm_subs_epu8(metrics32_47,min_state);
     metrics48_63 = _mm_subs_epu8(metrics48_63,min_state);
+#elif defined(__arm__)
+    m0_ptr = (uint8x16_t *)&m0_table[table_offset];
+    m1_ptr = (uint8x16_t *)&m1_table[table_offset];
+
+
+    // even states
+    even0_30a  = vqaddq_u8(metrics0_31.val[0],m0_ptr[0]);
+    even32_62a = vqaddq_u8(metrics0_31.val[1],m0_ptr[1]);
+    even0_30b  = vqaddq_u8(metrics32_63.val[0],m0_ptr[2]);
+    even32_62b = vqaddq_u8(metrics32_63.val[1],m0_ptr[3]);
+
+    // odd states
+    odd1_31a   = vqaddq_u8(metrics0_31.val[0],m1_ptr[0]);
+    odd33_63a  = vqaddq_u8(metrics0_31.val[1],m1_ptr[1]);
+    odd1_31b   = vqaddq_u8(metrics32_63.val[0],m1_ptr[2]);
+    odd33_63b  = vqaddq_u8(metrics32_63.val[1],m1_ptr[3]);
+    // select maxima
+    even0_30a  = vmaxq_u8(even0_30a,even0_30b);
+    even32_62a = vmaxq_u8(even32_62a,even32_62b);
+    odd1_31a   = vmaxq_u8(odd1_31a,odd1_31b);
+    odd33_63a  = vmaxq_u8(odd33_63a,odd33_63b);
+
+    // Traceback information
+    TBeven0_30  = vceqq_u8(even0_30a,even0_30b);
+    TBeven32_62 = vceqq_u8(even32_62a,even32_62b);
+    TBodd1_31   = vceqq_u8(odd1_31a,odd1_31b);
+    TBodd33_63  = vceqq_u8(odd33_63a,odd33_63b);
 
-    /*
-    print_bytes(metrics0_15,"metrics0_15");
-    print_bytes(metrics16_31,"metrics16_31");
-    print_bytes(metrics32_47,"metrics32_47");
-    print_bytes(metrics48_63,"metrics48_63");
-    */
+    metrics0_31  = vzipq_u8(even0_30a,odd1_31a);
+    metrics32_63 = vzipq_u8(even32_62a,odd33_63a);
 
+    TB_ptr[0] = vzipq_u8(TBeven0_30,TBodd1_31);
+    TB_ptr[1] = vzipq_u8(TBeven32_62,TBodd33_63);
 
+    in+=2;
+    TB_ptr += 2;
+
+    // rescale by subtracting minimum
+    /****************************************************
+    USE SSSE instruction phminpos!!!!!!!
+    ****************************************************/
+    min_state =vminq_u8(metrics0_31.val[0],metrics0_31.val[1]);
+    min_state =vminq_u8(min_state,metrics32_63.val[0]);
+    min_state =vminq_u8(min_state,metrics32_63.val[1]);
+    // here we have 16 maximum metrics from the 64 states
+    uint8x8_t min_state2 = vpmin_u8(((uint8x8_t*)&min_state)[0],((uint8x8_t*)&min_state)[0]);
+    // now the 8 maximum in min_state2
+    min_state2 = vpmin_u8(min_state2,min_state2);
+    // now the 4 maximum in min_state2, repeated twice
+    min_state2 = vpmin_u8(min_state2,min_state2);
+    // now the 2 maximum in min_state2, repeated 4 times
+    min_state2 = vpmin_u8(min_state2,min_state2);
+    // now the 1 maximum in min_state2, repeated 8 times
+    min_state  = vcombine_u8(min_state2,min_state2);
+    // now the 1 maximum in min_state, repeated 16 times
+    metrics0_31.val[0]  = vqsubq_u8(metrics0_31.val[0],min_state);
+    metrics0_31.val[1]  = vqsubq_u8(metrics0_31.val[1],min_state);
+    metrics32_63.val[0] = vqsubq_u8(metrics32_63.val[0],min_state);
+    metrics32_63.val[1] = vqsubq_u8(metrics32_63.val[1],min_state);
 
+#endif
   }
 
   // Traceback
@@ -429,29 +412,10 @@ void phy_viterbi_dot11_sse2(char *y,unsigned char *decoded_bytes,unsigned short
     }
   }
 
+#if defined(__x86_64) || defined(__i386__)
   _mm_empty();
-
-}
-
-#else //EXPRESSMIMO_TARGET
-
-void phy_viterbi_dot11(char *y,unsigned char *decoded_bytes,unsigned short n)
-{
-}
-
-#endif //EXPRESSMIMO_TARGET
-
-/*
-void print_bytes(__m128i x,char *s) {
-
-  unsigned char *tempb = (unsigned char *)&x;
-
-  printf("%s  : %u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u\n",s,
-   tempb[0],tempb[1],tempb[2],tempb[3],tempb[4],tempb[5],tempb[6],tempb[7],
-   tempb[8],tempb[9],tempb[10],tempb[11],tempb[12],tempb[13],tempb[14],tempb[15]);
-
+#endif
 }
-*/
 
 #ifdef TEST_DEBUG
 #include <stdio.h>

openair1/PHY/CODING/viterbi_lte.c

@@ -49,21 +49,14 @@
 #define msg printf
 #endif
 
-#ifndef EXPRESSMIMO_TARGET
+
 #include "PHY/sse_intrin.h"
-#endif //EXPRESSMIMO_TARGET
 
 extern uint8_t ccodelte_table[128],ccodelte_table_rev[128];
 
 
 
 
-#ifdef __KERNEL__
-#define printf rt_printk
-#endif
-
-#ifndef EXPRESSMIMO_TARGET
-
 static int8_t m0_table[64*16*16*16] __attribute__ ((aligned(16)));
 static int8_t m1_table[64*16*16*16] __attribute__ ((aligned(16)));
 
@@ -143,20 +136,33 @@ void print_shorts(__m128i x,char *s) {
 #endif // USER_MODE
 
 
-static __m128i  TB[4*8192];
-
-static __m128i metrics0_15,metrics16_31,metrics32_47,metrics48_63,even0_30a,even0_30b,even32_62a,even32_62b,odd1_31a,odd1_31b,odd33_63a,odd33_63b,TBeven0_30,TBeven32_62,TBodd1_31,
-       TBodd33_63;// __attribute__((aligned(16)));
-
-static __m128i min_state,min_state2;// __attribute__((aligned(16)));
 
 void phy_viterbi_lte_sse2(int8_t *y,uint8_t *decoded_bytes,uint16_t n)
 {
 
 
-  static __m128i *m0_ptr,*m1_ptr,*TB_ptr = &TB[0];
+#if defined(__x86_64__) || defined(__i386__)
+  __m128i  TB[4*8192];
+  __m128i *m0_ptr,*m1_ptr,*TB_ptr = &TB[0];
+  
+  __m128i metrics0_15,metrics16_31,metrics32_47,metrics48_63,even0_30a,even0_30b,even32_62a,even32_62b,odd1_31a,odd1_31b,odd33_63a,odd33_63b,TBeven0_30,TBeven32_62,TBodd1_31,
+    TBodd33_63;
+  
+  __m128i min_state,min_state2;
 
+#elif defined(__arm__)
+  uint8x16x2_t TB[2*8192];  // 2 int8x16_t per input bit, 8 bits / byte, 8192 is largest packet size in bits
 
+  uint8x16_t even0_30a,even0_30b,even32_62a,even32_62b,odd1_31a,odd1_31b,odd33_63a,odd33_63b,TBeven0_30,TBeven32_62,TBodd1_31,TBodd33_63;
+  uint8x16x2_t metrics0_31,metrics32_63;
+
+  uint8x16_t min_state;
+
+  uint8x16_t *m0_ptr,*m1_ptr;
+  uint8x16x2_t *TB_ptr = &TB[0];
+
+
+#endif
   int8_t *in = y;
   uint8_t prev_state0,maxm,s;
   static uint8_t *TB_ptr2;
@@ -167,140 +173,70 @@ void phy_viterbi_lte_sse2(int8_t *y,uint8_t *decoded_bytes,uint16_t n)
   // set initial metrics
   //debug_msg("Doing viterbi\n");
 
-  metrics0_15 = _mm_setzero_si128();
+#if defined(__x86_64__) || defined(__i386__)