Add dummy open CL ldpc library

cmake_targets/CMakeLists.txt

@@ -1592,6 +1592,11 @@ set(PHY_LDPC_CUDA_SRC
   ${OPENAIR1_DIR}/PHY/CODING/nrLDPC_encoder/ldpc_encoder_optim8segmulti.c
 )
 
+set(PHY_LDPC_CL_SRC
+  ${OPENAIR1_DIR}/PHY/CODING/nrLDPC_decoder/nrLDPC_decoder_CL.c
+  ${OPENAIR1_DIR}/PHY/CODING/nrLDPC_encoder/ldpc_encoder_optim8segmulti.c
+)
+
 set(PHY_NR_CODINGIF
   ${OPENAIR1_DIR}/PHY/CODING/nrLDPC_load.c;
 )
@@ -1599,6 +1604,9 @@ set(PHY_NR_CODINGIF
 add_library(ldpc_orig MODULE ${PHY_LDPC_ORIG_SRC} )
 add_library(ldpc_optim MODULE ${PHY_LDPC_OPTIM_SRC} )
 add_library(ldpc_optim8seg MODULE ${PHY_LDPC_OPTIM8SEG_SRC} )
+add_library(ldpc_cl MODULE ${PHY_LDPC_CL_SRC} )
+target_link_libraries(ldpc_cl OpenCL)
+
 if (CUDA_FOUND)
   cuda_add_library(ldpc_cuda MODULE ${PHY_LDPC_CUDA_SRC} )
   set_target_properties(ldpc_cuda PROPERTIES CUDA_SEPARABLE_COMPILATION ON)

openair1/PHY/CODING/nrLDPC_decoder/nrLDPC_decoder_CL.c

@@ -0,0 +1,155 @@
+/*! \file PHY/CODING/nrLDPC_decoder_LYC/nrLDPC_decoder_LYC.cu
+ * \brief LDPC cuda support BG1 all length
+ * \author NCTU OpinConnect Terng-Yin Hsu,WEI-YING,LIN
+ * \email tyhsu@cs.nctu.edu.tw
+ * \date 13-05-2020
+ * \version 
+ * \note
+ * \warning
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <cuda_runtime.h>
+#include <CL/opencl.h>
+#include "PHY/CODING/nrLDPC_decoder/nrLDPC_types.h"
+#include "PHY/CODING/nrLDPC_decoder/nrLDPCdecoder_defs.h"
+#include "assertions.h"
+#include "common/utils/LOG/log.h"
+
+#define MAX_ITERATION 2
+#define MC	1
+
+
+
+typedef struct{
+  char x;
+  char y;
+  short value;
+} h_element;
+
+
+
+
+
+
+
+
+
+void init_LLR_DMA(t_nrLDPC_dec_params* p_decParams, int8_t* p_llr, int8_t* p_out){
+	
+	uint16_t Zc          = p_decParams->Z;
+    uint8_t  BG         = p_decParams->BG;
+    int block_length     = p_decParams->block_length;
+	uint8_t row,col;
+	if(BG == 1){
+		row = 46;
+		col = 68;
+	}
+	else{
+		row = 42;
+		col = 52;
+	}
+	unsigned char *hard_decision = (unsigned char*)p_out;
+	int memorySize_llr_cuda = col * Zc * sizeof(char) * MC;
+//	cudaCheck( cudaMemcpyToSymbol(dev_const_llr, p_llr, memorySize_llr_cuda) );
+//	cudaCheck( cudaMemcpyToSymbol(dev_llr, p_llr, memorySize_llr_cuda) );
+//	cudaDeviceSynchronize();
+	
+}
+
+
+/* from here: entry points in decoder shared lib */
+int ldpc_autoinit(void) {   // called by the library loader 
+  cl_platform_id platforms[10];
+  cl_int         num_platforms_found;
+  
+  cl_int rt = clGetPlatformIDs( sizeof(platforms)/sizeof(cl_platform_id), platforms, &num_platforms_found );
+  AssertFatal(rt == CL_SUCCESS, "clGetPlatformIDs error %d\n" , (int)rt);
+  AssertFatal( num_platforms_found>0 , "clGetPlatformIDs: no cl compatible platform found\n");
+  for (int i=0 ; i<(int)num_platforms_found ; i++) {
+	  cl_device_id devices[20];
+	  cl_int       num_devices_found;
+	  rt = clGetDeviceIDs(platforms[i],CL_DEVICE_TYPE_ALL, sizeof(devices)/sizeof(cl_device_id),devices,&num_devices_found);
+	  AssertFatal(rt == CL_SUCCESS, "clGetDeviceIDs error %d\n" , (int)rt);
+	  for (int j=0; j<num_devices_found; j++) {
+		cl_device_type devtype;
+		rt = clGetDeviceInfo(devices[j],CL_DEVICE_TYPE, sizeof(cl_device_type),&devtype,NULL);
+		AssertFatal(rt == CL_SUCCESS, "clGetDeviceInfo error %d\n" , (int)rt); 
+		LOG_I(HW,"Device %i, type %d\n", j,(int)devtype);
+      }
+  }
+  return 0;  
+}
+
+
+void nrLDPC_initcall(t_nrLDPC_dec_params* p_decParams, int8_t* p_llr, int8_t* p_out) {
+
+}
+
+
+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 *time_decoder)
+{
+    uint16_t Zc          = p_decParams->Z;
+    uint8_t  BG         = p_decParams->BG;
+    uint8_t  numMaxIter = p_decParams->numMaxIter;
+    int block_length    = p_decParams->block_length;
+    e_nrLDPC_outMode outMode = p_decParams->outMode;
+	cudaError_t cudaStatus;
+	uint8_t row,col;
+	if(BG == 1){
+		row = 46;
+		col = 68;
+	}
+	else{
+		row = 42;
+		col = 52;
+	}
+
+//	alloc memory
+	unsigned char *hard_decision = (unsigned char*)p_out;
+//	gpu
+	int memorySize_llr_cuda = col * Zc * sizeof(char) * MC;
+//	cudaCheck( cudaMemcpyToSymbol(dev_const_llr, p_llr, memorySize_llr_cuda) );
+//	cudaCheck( cudaMemcpyToSymbol(dev_llr, p_llr, memorySize_llr_cuda) );
+	
+// Define CUDA kernel dimension
+	int blockSizeX = Zc;
+//	dim3 dimGridKernel1(row, MC, 1); 	// dim of the thread blocks
+//	dim3 dimBlockKernel1(blockSizeX, 1, 1);
+
+//    dim3 dimGridKernel2(col, MC, 1);
+//    dim3 dimBlockKernel2(blockSizeX, 1, 1);	
+//	cudaDeviceSynchronize();
+
+// lauch kernel 
+/*
+	for(int ii = 0; ii < MAX_ITERATION; ii++){
+		// first kernel	
+		if(ii == 0){
+			ldpc_cnp_kernel_1st_iter 
+			<<<dimGridKernel1, dimBlockKernel1>>>
+			( BG, row, col, Zc);
+		}else{
+			ldpc_cnp_kernel
+			<<<dimGridKernel1, dimBlockKernel1>>>
+			( BG, row, col, Zc);
+		}
+		// second kernel
+		ldpc_vnp_kernel_normal
+		<<<dimGridKernel2, dimBlockKernel2>>>
+		// (dev_llr, dev_const_llr,BG, row, col, Zc);
+		(BG, row, col, Zc);
+	}
+	
+	int pack = (block_length/128)+1;
+	dim3 pack_block(pack, MC, 1);
+	pack_decoded_bit<<<pack_block,128>>>( col, Zc);
+	
+	cudaCheck( cudaMemcpyFromSymbol((void*)hard_decision, (const void*)dev_tmp, (block_length/8)*sizeof(unsigned char)) );
+	cudaDeviceSynchronize();
+*/	
+
+	return MAX_ITERATION;
+	
+}