FPGA: Fix namespaces errors for math function calls (#2350)

Versions of host_ptr and device_ptr that are in the sycl:: namespace are deprecated and should be replaced by sycl::ext::intel namespace.
Explicitly specifying sycl:: is needed for some code samples.

Author: renlizha

DirectProgramming/C++SYCL_FPGA/ReferenceDesigns/anr/src/dma_kernels.hpp

@@ -45,7 +45,7 @@ event SubmitInputDMA(queue &q, T *in_ptr, int rows, int cols, int frames) {
   return q.single_task<KernelId>([=]() [[intel::kernel_args_restrict]] {
 
 #if defined (IS_BSP)
-    device_ptr<T> in(in_ptr);
+    sycl::ext::intel::device_ptr<T> in(in_ptr);
 #else 
     T* in(in_ptr);
 #endif  
@@ -90,7 +90,7 @@ event SubmitOutputDMA(queue &q, T *out_ptr, int rows, int cols, int frames) {
   return q.single_task<KernelId>([=]() [[intel::kernel_args_restrict]] {
 
 #if defined (IS_BSP)
-    device_ptr<T> out(out_ptr);
+    sycl::ext::intel::device_ptr<T> out(out_ptr);
 #else 
     T* out(out_ptr);
 #endif      

DirectProgramming/C++SYCL_FPGA/ReferenceDesigns/anr/src/intensity_sigma_lut.hpp

@@ -18,7 +18,7 @@ class IntensitySigmaLUT {
 
 #if defined (IS_BSP)
   // construct from a device_ptr (for constructing from device memory)
-  IntensitySigmaLUT(device_ptr<float> ptr) {
+  IntensitySigmaLUT(sycl::ext::intel::device_ptr<float> ptr) {
     // use a pipelined LSU to load from device memory since we don't
     // care about the performance of the copy.
     using PipelinedLSU = ext::intel::lsu<>;

DirectProgramming/C++SYCL_FPGA/ReferenceDesigns/anr/src/main.cpp

@@ -103,7 +103,7 @@ int main(int argc, char* argv[]) {
 #endif
 
   std::cout << "Running on device: "
-            << device.get_info<info::device::name>().c_str() 
+            << device.get_info<sycl::info::device::name>().c_str() 
             << std::endl;
 
 
@@ -444,7 +444,7 @@ bool Validate(PixelT* val, PixelT* ref, int rows, int cols,
   mse /= count;
 
   // compute the PSNR
-  double psnr = (20 * std::log10(max_i)) - (10 * std::log10(mse));
+  double psnr = (20 * log10(max_i)) - (10 * log10(mse));
 
   // check PSNR and maximum pixel difference
   bool passed = true;

DirectProgramming/C++SYCL_FPGA/ReferenceDesigns/merge_sort/src/consume.hpp

@@ -25,7 +25,7 @@ event Consume(queue& q, ValueT* out_ptr, IndexT total_count, IndexT offset,
     // This is only done in the case where we target a BSP as device 
     // pointers are not supported when targeting an FPGA family/part
 #if defined(IS_BSP)
-    device_ptr<ValueT> out(out_ptr);
+    sycl::ext::intel::device_ptr<ValueT> out(out_ptr);
 #else
     ValueT* out(out_ptr);
 #endif

DirectProgramming/C++SYCL_FPGA/ReferenceDesigns/merge_sort/src/main.cpp

@@ -166,7 +166,7 @@ int main(int argc, char *argv[]) {
   }
 
   std::cout << "Running on device: "
-            << device.get_info<info::device::name>().c_str() 
+            << device.get_info<sycl::info::device::name>().c_str() 
             << std::endl;
 
   // the input, output, and reference data

DirectProgramming/C++SYCL_FPGA/ReferenceDesigns/merge_sort/src/produce.hpp

@@ -27,7 +27,7 @@ event Produce(queue& q, ValueT *in_ptr, IndexT count, IndexT in_block_count,
       // This is only done in the case where we target a BSP as device 
       // pointers are not supported when targeting an FPGA family/part
 #if defined(IS_BSP)
-      device_ptr<ValueT> in(in_ptr);
+      sycl::ext::intel::device_ptr<ValueT> in(in_ptr);
 #else
       ValueT* in(in_ptr);
 #endif

DirectProgramming/C++SYCL_FPGA/ReferenceDesigns/merge_sort/src/sorting_networks.hpp

@@ -110,7 +110,7 @@ event SortNetworkKernel(queue& q, ValueT* out_ptr, IndexT total_count,
     // This is only done in the case where we target a BSP as device 
     // pointers are not supported when targeting an FPGA family/part
 #if defined(IS_BSP)
-    device_ptr<ValueT> out(out_ptr);
+    sycl::ext::intel::device_ptr<ValueT> out(out_ptr);
 #else
     ValueT* out(out_ptr);
 #endif

DirectProgramming/C++SYCL_FPGA/ReferenceDesigns/qrd/src/memory_transfers.hpp

@@ -42,7 +42,7 @@ void MatrixReadFromDDRToPipe(
   // lives on the device.
   // Knowing this, the compiler won't generate hardware to
   // potentially get data from the host.
-  sycl::device_ptr<TT> matrix_ptr_located(matrix_ptr);
+  sycl::ext::intel::device_ptr<TT> matrix_ptr_located(matrix_ptr);
 #else
   // Device pointers are not supported when targeting an FPGA 
   // family/part
@@ -143,7 +143,7 @@ void MatrixReadPipeToDDR(
   // lives on the device.
   // Knowing this, the compiler won't generate hardware to
   // potentially get data from the host.
-  sycl::device_ptr<TT> matrix_ptr_located(matrix_ptr);
+  sycl::ext::intel::device_ptr<TT> matrix_ptr_located(matrix_ptr);
 #else
   // Device pointers are not supported when targeting an FPGA 
   // family/part

DirectProgramming/C++SYCL_FPGA/ReferenceDesigns/qrd/src/qrd.hpp

@@ -109,7 +109,7 @@ void QRDecompositionImpl(
     // lives on the device.
     // Knowing this, the compiler won't generate hardware to
     // potentially get data from the host.
-    sycl::device_ptr<TT> vector_ptr_located(r_device);
+    sycl::ext::intel::device_ptr<TT> vector_ptr_located(r_device);
 #else
     // Device pointers are not supported when targeting an FPGA 
     // family/part