Initial commit

Change-Id: I4bf1707bd3dfeadf2c17b0a7daff372b1925ebbd

runtime/mem_obj/pipe.cpp

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+/*
+ * Copyright (c) 2017, Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "runtime/context/context.h"
+#include "runtime/mem_obj/pipe.h"
+#include "runtime/helpers/get_info.h"
+#include "runtime/memory_manager/memory_manager.h"
+
+namespace OCLRT {
+
+Pipe::Pipe(Context *context,
+           cl_mem_flags flags,
+           cl_uint packetSize,
+           cl_uint maxPackets,
+           const cl_pipe_properties *properties,
+           void *memoryStorage,
+           GraphicsAllocation *gfxAllocation)
+    : MemObj(context,
+             CL_MEM_OBJECT_PIPE,
+             flags,
+             static_cast<size_t>(packetSize * (maxPackets + 1) + intelPipeHeaderReservedSpace),
+             memoryStorage,
+             nullptr,
+             gfxAllocation,
+             false,
+             false,
+             false),
+      pipePacketSize(packetSize),
+      pipeMaxPackets(maxPackets) {
+    magic = objectMagic;
+}
+
+Pipe *Pipe::create(Context *context,
+                   cl_mem_flags flags,
+                   cl_uint packetSize,
+                   cl_uint maxPackets,
+                   const cl_pipe_properties *properties,
+                   cl_int &errcodeRet) {
+    Pipe *pPipe = nullptr;
+    errcodeRet = CL_SUCCESS;
+
+    MemoryManager *memoryManager = context->getMemoryManager();
+    DEBUG_BREAK_IF(!memoryManager);
+
+    while (true) {
+        GraphicsAllocation *memory = memoryManager->createGraphicsAllocationWithRequiredBitness(packetSize * (maxPackets + 1) + intelPipeHeaderReservedSpace, nullptr);
+        if (!memory) {
+            errcodeRet = CL_OUT_OF_HOST_MEMORY;
+            break;
+        }
+
+        pPipe = new (std::nothrow) Pipe(context, flags, packetSize, maxPackets, properties, memory->getUnderlyingBuffer(), memory);
+        if (!pPipe) {
+            memoryManager->freeGraphicsMemory(memory);
+            memory = nullptr;
+            errcodeRet = CL_OUT_OF_HOST_MEMORY;
+            break;
+        }
+        // Initialize pipe_control_intel_t structure located at the beginning of the surface
+        memset(memory->getUnderlyingBuffer(), 0, intelPipeHeaderReservedSpace);
+        *reinterpret_cast<unsigned int *>(memory->getUnderlyingBuffer()) = maxPackets + 1;
+        break;
+    }
+
+    return pPipe;
+}
+
+cl_int Pipe::getPipeInfo(cl_image_info paramName,
+                         size_t paramValueSize,
+                         void *paramValue,
+                         size_t *paramValueSizeRet) {
+
+    cl_int retVal;
+    size_t srcParamSize = 0;
+    void *srcParam = nullptr;
+
+    switch (paramName) {
+    case CL_PIPE_PACKET_SIZE:
+        srcParamSize = sizeof(cl_uint);
+        srcParam = &(pipePacketSize);
+        break;
+
+    case CL_PIPE_MAX_PACKETS:
+        srcParamSize = sizeof(cl_uint);
+        srcParam = &(pipeMaxPackets);
+        break;
+
+    default:
+        break;
+    }
+
+    retVal = ::getInfo(paramValue, paramValueSize, srcParam, srcParamSize);
+
+    if (paramValueSizeRet) {
+        *paramValueSizeRet = srcParamSize;
+    }
+
+    return retVal;
+}
+
+void Pipe::setPipeArg(void *memory, uint32_t patchSize) {
+    patchWithRequiredSize(memory, patchSize, (uintptr_t)getCpuAddress());
+}
+
+Pipe::~Pipe() = default;
+} // namespace OCLRT