introduce support for CM printf on OCL/L0 runtime

Change-Id: Ib69991f4a96599163b0c9565124a908373186b0f

Author: Alexey Baturo

IGC/AdaptorOCL/cmc.cpp

@@ -353,6 +353,17 @@ static void generatePatchTokens(const cmc_kernel_info *info, CMKernel& kernel)
     // Setup argument to BTI mapping.
     kernel.m_kernelInfo.m_argIndexMap.clear();
 
+    for (unsigned i = 0; i < info->num_print_strings; i++) {
+        assert(info->print_string_descs);
+        cmc_ocl_print_string& SI = info->print_string_descs[i];
+        iOpenCL::PrintfStringAnnotation* stringAnnotation = new iOpenCL::PrintfStringAnnotation;
+        stringAnnotation->Index = i;
+        stringAnnotation->StringSize = sizeof(SI.s);
+        stringAnnotation->StringData = new char[cmc_ocl_print_string::max_width];
+        std::copy(SI.s, SI.s + cmc_ocl_print_string::max_width, stringAnnotation->StringData);
+        kernel.m_kernelInfo.m_printfStringAnnotations.push_back(stringAnnotation);
+    }
+
     for (unsigned i = 0; i < info->num_args; ++i) {
         assert(info->arg_descs);
         cmc_arg_info& AI = info->arg_descs[i];
@@ -397,6 +408,14 @@ static void generatePatchTokens(const cmc_kernel_info *info, CMKernel& kernel)
             kernel.createImageAnnotation(AI.index, AI.BTI, 3, isWriteable);
             kernel.m_kernelInfo.m_argIndexMap[AI.index] = AI.BTI;
             break;
+        case cmc_arg_kind::PrintBuffer:
+            kernel.m_kernelInfo.m_printfBufferAnnotation = new iOpenCL::PrintfBufferAnnotation();
+            kernel.m_kernelInfo.m_printfBufferAnnotation->AnnotationSize = sizeof(kernel.m_kernelInfo.m_printfBufferAnnotation);
+            kernel.m_kernelInfo.m_argIndexMap[AI.index] = 255;
+            kernel.m_kernelInfo.m_printfBufferAnnotation->PayloadPosition = AI.offset - constantPayloadStart;
+            kernel.m_kernelInfo.m_printfBufferAnnotation->Index = 0;
+            kernel.m_kernelInfo.m_printfBufferAnnotation->DataSize = 8;
+            break;
         }
     }
 

IGC/AdaptorOCL/igcmc.h

@@ -43,7 +43,8 @@ enum class cmc_arg_kind : int32_t {
     Sampler,
     Image1d,
     Image2d,
-    Image3d
+    Image3d,
+    PrintBuffer // IMPLICIT_PRINTF_BUFFER
 };
 
 struct cmc_arg_info {
@@ -66,6 +67,11 @@ struct cmc_arg_info {
     cmc_access_kind access = cmc_access_kind::undef;
 };
 
+struct cmc_ocl_print_string {
+    static constexpr unsigned max_width = 128;
+    char s[max_width];
+};
+
 // compilation interface bewteen cmc and igc
 struct cmc_kernel_info {
     /// The kernel name.
@@ -77,6 +83,12 @@ struct cmc_kernel_info {
     /// The kernel argument info.
     cmc_arg_info *arg_descs;
 
+    /// number of format strings in the kernel
+    unsigned num_print_strings;
+
+    /// The kernel format string storage
+    cmc_ocl_print_string *print_string_descs;
+
     // ThreadPayload
     bool HasLocalIDx = false;
     bool HasLocalIDy = false;