HLS:细胞自动机

Question

所以我一直在尝试使用Vitis HLS构建以下内容:

ca.hpp:

#include <cstdio>
#include <cinttypes>
#include "ap_axi_sdata.h"
#include "hls_stream.h"
#define N 8
typedef int DataType;
typedef hls::axis<DataType, 0, 0, 0> packet;
typedef hls::stream<packet> stream;
bool is_equal(DataType previous_state[3], DataType test[3]);
DataType rule30(DataType previous_state[3]);
template <typename T> void ca(T input[N], T output[N]);

ca.cpp:

#include "ca.hpp"
DataType rule30_111[3] = {1, 1, 1};
DataType rule30_110[3] = {1, 1, 0};
DataType rule30_101[3] = {1, 0, 1};
DataType rule30_011[3] = {0, 1, 1};
DataType rule30_100[3] = {1, 0, 0};
DataType rule30_010[3] = {0, 1, 0};
DataType rule30_001[3] = {0, 0, 1};
DataType rule30_000[3] = {0, 0, 0};
bool is_equal(DataType previous_state[3], DataType test[3]){
int check = 1;
for(int j = 0; j < 3; j++){
check = previous_state[j]==test[j];
if(check == 0){
return 0;
}
}
return 1;
}
DataType rule30(DataType previous_state[3]){
if(is_equal(previous_state, rule30_111)){
return 0;
} else if(is_equal(previous_state, rule30_110)){
return 0;
} else if(is_equal(previous_state, rule30_101)){
return 0;
} else if(is_equal(previous_state, rule30_011)){
return 1;
} else if(is_equal(previous_state, rule30_001)){
return 1;
} else if(is_equal(previous_state, rule30_010)){
return 1;
} else if(is_equal(previous_state, rule30_100)){
return 1;
} else if(is_equal(previous_state, rule30_000)){
return 0;
} else {
return -1;
}
}
template <typename T> void ca(T input[N], T output[N]) {
for(int i = 0; i < N; i++){
if(i > 0 and i < N - 1){
T previous_state[3] = {input[i - 1], input[i], input[i + 1]};
output[i] = rule30(previous_state);
}
}
}
void cellular_autmata(stream &signal, stream &result) {
#pragma HLS INTERFACE axis port=signal
#pragma HLS INTERFACE axis port=result
#pragma HLS INTERFACE ap_ctrl_none port=return
DataType in[N];
DataType out[N];
read:
for(int i = 0; i < N; i++){
packet temp = signal.read();
in[i] = temp.data;
}
ca<DataType>(in, out);
write:
for(int i = 0; i < N; i++){
packet temp;
temp.data = out[i];
ap_uint<1> last = 0;
if(i == N - 1){
last = 1;
}
temp.last = last;
temp.keep = -1;
result.write(temp);
}
}

ca_tb.cpp:

#include "ca.hpp"
void sw_ca(DataType input[], DataType output[]) {
for(int i = 0; i < N; i++){
if(i > 0 and i < N - 1){
DataType rule[3] = {input[i - 1], input[i], input[i + 1]};
output[i] = rule30(rule);
}
}
}
int main(void) {
/*initialise*/
int i, err;
DataType in[N] = {0,0,1,1,0,0,1,1};
DataType out_sw[N];
DataType out_hw[N];
std::cout << "signal in:" << std::endl;
for (i = 0; i < N; i++) {
//in[i] = i % 2;
out_sw[i] = 0;
out_hw[i] = 0;
std::cout << in[i] << " ";
}
std::cout << std::endl;
std::cout << std::endl;
/* software */
sw_ca(in, out_sw);
std::cout<<"software kernel completen"<<std::endl;
/* hardware */
ca<DataType>(in, out_hw);
std::cout<<"hardware kernel completen"<<std::endl;
/* comparison */
err = 1;
std::cout << "signal out:" << std::endl;
for(i = 0; i < N; i++){
if(out_sw[i] != out_hw[i]){
err = 0;
}
std::cout << out_hw[i] << " ";
}
std::cout<<std::endl;
if (err == 1) {
printf("Test successful!rn");
return 0;
}
printf("Test failedrn");
return 1;
}

Testbench运行良好…

当我试图合成时，我反复得到vitis的错误:

ERROR: [HLS 214-157] Top function not found: there is no function named 'ca' cellular_automata:cellular_automata Mar 29, 2023, 3:14:13 PM

非常感谢这里的任何提示!

所以对于这个系统，我希望生成一个Vivado IP，但是Vivado编译停止了，出现了上面所示的错误

Answer 1

葡萄HLS像ca不能合成一个模板函数,所以您需要指定高级功能(或调用主)功能cellular_autmata(可能有一个拼写错误在你的代码)。