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Change-Id: I4bf1707bd3dfeadf2c17b0a7daff372b1925ebbd

runtime/os_interface/windows/wddm_memory_manager.h

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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.
+ */
+
+#pragma once
+#include "runtime/helpers/aligned_memory.h"
+#include "runtime/memory_manager/memory_manager.h"
+#include "runtime/os_interface/windows/wddm_allocation.h"
+#include "runtime/os_interface/windows/windows_wrapper.h"
+#include <d3dkmthk.h>
+#include <map>
+#include <mutex>
+#include <vector>
+
+namespace OCLRT {
+class Gmm;
+class Wddm;
+
+class WddmMemoryManager : public MemoryManager {
+  public:
+    using MemoryManager::allocateGraphicsMemory;
+    using MemoryManager::createGraphicsAllocationFromSharedHandle;
+
+    ~WddmMemoryManager();
+    WddmMemoryManager(bool enable64kbPages, Wddm *wddm);
+
+    void freeGraphicsMemoryImpl(GraphicsAllocation *gfxAllocation) override;
+    GraphicsAllocation *allocateGraphicsMemory64kb(size_t size, size_t alignment, bool forcePin) override;
+    GraphicsAllocation *allocateGraphicsMemory(size_t size, size_t alignment, bool forcePin) override;
+    GraphicsAllocation *allocateGraphicsMemory(size_t size, const void *ptr) override;
+    GraphicsAllocation *allocate32BitGraphicsMemory(size_t size, void *ptr) override;
+    GraphicsAllocation *createGraphicsAllocationFromSharedHandle(osHandle handle, bool requireSpecificBitness, bool reuseBO) override;
+    GraphicsAllocation *createGraphicsAllocationFromNTHandle(void *handle) override;
+    GraphicsAllocation *allocateGraphicsMemoryForImage(ImageInfo &imgInfo, Gmm *gmm) override;
+    void *lockResource(GraphicsAllocation *graphicsAllocation) override;
+    void unlockResource(GraphicsAllocation *graphicsAllocation) override;
+
+    bool makeResidentResidencyAllocations(ResidencyContainer *allocationsForResidency);
+    void makeNonResidentEvictionAllocations();
+
+    bool populateOsHandles(OsHandleStorage &handleStorage) override;
+    void cleanOsHandles(OsHandleStorage &handleStorage) override;
+
+    GraphicsAllocation *createGraphicsAllocation(OsHandleStorage &handleStorage, size_t hostPtrSize, const void *hostPtr) override;
+
+    static const D3DGPU_VIRTUAL_ADDRESS minimumAddress = static_cast<D3DGPU_VIRTUAL_ADDRESS>(0x0);
+    static const D3DGPU_VIRTUAL_ADDRESS maximumAddress = static_cast<D3DGPU_VIRTUAL_ADDRESS>((sizeof(size_t) == 8) ? 0x7ffffffffff : (D3DGPU_VIRTUAL_ADDRESS)0xffffffff);
+
+    uint64_t getSystemSharedMemory() override;
+    uint64_t getMaxApplicationAddress() override;
+
+    static void APIENTRY trimCallback(_Inout_ D3DKMT_TRIMNOTIFICATION *trimNotification);
+
+    void acquireResidencyLock() {
+        bool previousLockValue = false;
+        while (!residencyLock.compare_exchange_weak(previousLockValue, true))
+            previousLockValue = false;
+    }
+
+    void releaseResidencyLock() {
+        residencyLock = false;
+    }
+
+    bool tryDeferDeletions(D3DKMT_HANDLE *handles, uint32_t allocationCount, uint64_t lastFenceValue, D3DKMT_HANDLE resourceHandle, void *cpuPtr, void *gpuPtr);
+
+    bool isMemoryBudgetExhausted() const override { return memoryBudgetExhausted; }
+
+  protected:
+    GraphicsAllocation *createAllocationFromHandle(osHandle handle, bool requireSpecificBitness, bool ntHandle);
+    WddmAllocation *getTrimCandidateHead() {
+        uint32_t i = 0;
+        size_t size = trimCandidateList.size();
+
+        if (size == 0) {
+            return nullptr;
+        }
+        while ((trimCandidateList[i] == nullptr) && (i < size))
+            i++;
+
+        return (WddmAllocation *)trimCandidateList[i];
+    }
+    void removeFromTrimCandidateList(GraphicsAllocation *allocation, bool compactList = false);
+    void addToTrimCandidateList(GraphicsAllocation *allocation);
+    void compactTrimCandidateList();
+    void trimResidency(D3DDDI_TRIMRESIDENCYSET_FLAGS flags, uint64_t bytes);
+    bool trimResidencyToBudget(uint64_t bytes);
+    static bool validateAllocation(WddmAllocation *alloc);
+    bool checkTrimCandidateListCompaction();
+    void checkTrimCandidateCount();
+    ResidencyContainer trimCandidateList;
+    std::mutex trimCandidateListMutex;
+    std::atomic<bool> residencyLock;
+    uint64_t lastPeriodicTrimFenceValue = 0;
+    uint32_t trimCandidatesCount = 0;
+    bool memoryBudgetExhausted = false;
+    bool unmapAuxVA(Gmm *gmm, D3DGPU_VIRTUAL_ADDRESS &gpuVA);
+
+  private:
+    Wddm *wddm;
+};
+} // namespace OCLRT