Kernels with Namespaces - 2025.2 English - UG1483

Kernel.h

namespace ns1 {
void myFunc_1(input_stream<int32> * restrict i1,
            output_stream<int32> * restrict o1);
} // namespace ns1

templateKernel.h

namespace ns2 {
template<typename T,int size>
void myFunc_2(input_stream<int32> * restrict i1,
            output_stream<int32> * restrict o1);
} // namespace ns2

You can import the above functions using the AIE Kernel and AIE Template Kernel blocks. Update the Kernel function parameter in the Block Parameters dialog box as follows:

Kernel function

ns1::myFunc_1 (Non-templatized function)

Kernel function

ns2::myFunc_2 (Templatized function)

If you have a class kernel declared in a namespace, then only qualify the kernel class field, and not the kernel function.

For example, consider the following kernel class which is qualified with the namespace ns3.

class_kernel.h

namespace ns3 {
#include "adf.h"
  
class simple_class
{
private:
    int16 val;
    int16 numSamples;
  
public:
    simple_class();
 
    void func_q(input_window_int16* in, output_window_int16* out);
      
    static void registerKernelClass()
    {      
        REGISTER_FUNCTION(simple_class::func_q);
    }
};
} // namespace ns3

To Import the kernel function func_q as a block, update the Kernel class and Kernel function parameters in the AIE Class Kernel block as follows:

Kernel class

ns3::simple_class

Kernel function

func_q