Francis Murtagh | 9270d9e | 2022-08-12 13:54:17 +0100 | [diff] [blame] | 1 | // |
| 2 | // Copyright © 2022 Arm Ltd and Contributors. All rights reserved. |
| 3 | // SPDX-License-Identifier: MIT |
| 4 | // |
| 5 | #include "TosaRefTensorHandle.hpp" |
| 6 | |
| 7 | namespace armnn |
| 8 | { |
| 9 | |
| 10 | TosaRefTensorHandle::TosaRefTensorHandle(const TensorInfo& tensorInfo, |
| 11 | std::shared_ptr<TosaRefMemoryManager>& memoryManager) |
| 12 | : m_TensorInfo(tensorInfo) |
| 13 | , m_MemoryManager(memoryManager) |
| 14 | , m_Pool(nullptr) |
| 15 | , m_UnmanagedMemory(nullptr) |
| 16 | , m_ImportFlags(static_cast<MemorySourceFlags>(MemorySource::Undefined)) |
| 17 | , m_Imported(false) |
| 18 | , m_IsImportEnabled(false) |
| 19 | {} |
| 20 | |
| 21 | TosaRefTensorHandle::TosaRefTensorHandle(const TensorInfo& tensorInfo, |
| 22 | MemorySourceFlags importFlags) |
| 23 | : m_TensorInfo(tensorInfo) |
| 24 | , m_Pool(nullptr) |
| 25 | , m_UnmanagedMemory(nullptr) |
| 26 | , m_ImportFlags(importFlags) |
| 27 | , m_Imported(false) |
| 28 | , m_IsImportEnabled(true) |
| 29 | {} |
| 30 | |
| 31 | TosaRefTensorHandle::~TosaRefTensorHandle() |
| 32 | { |
| 33 | if (!m_Pool) |
| 34 | { |
| 35 | // unmanaged |
| 36 | if (!m_Imported) |
| 37 | { |
| 38 | ::operator delete(m_UnmanagedMemory); |
| 39 | } |
| 40 | } |
| 41 | } |
| 42 | |
| 43 | void TosaRefTensorHandle::Manage() |
| 44 | { |
| 45 | if (!m_IsImportEnabled) |
| 46 | { |
| 47 | ARMNN_ASSERT_MSG(!m_Pool, "TosaRefTensorHandle::Manage() called twice"); |
| 48 | ARMNN_ASSERT_MSG(!m_UnmanagedMemory, "TosaRefTensorHandle::Manage() called after Allocate()"); |
| 49 | |
| 50 | m_Pool = m_MemoryManager->Manage(m_TensorInfo.GetNumBytes()); |
| 51 | } |
| 52 | } |
| 53 | |
| 54 | void TosaRefTensorHandle::Allocate() |
| 55 | { |
| 56 | // If import is enabled, do not allocate the tensor |
| 57 | if (!m_IsImportEnabled) |
| 58 | { |
| 59 | |
| 60 | if (!m_UnmanagedMemory) |
| 61 | { |
| 62 | if (!m_Pool) |
| 63 | { |
| 64 | // unmanaged |
| 65 | m_UnmanagedMemory = ::operator new(m_TensorInfo.GetNumBytes()); |
| 66 | } |
| 67 | else |
| 68 | { |
| 69 | m_MemoryManager->Allocate(m_Pool); |
| 70 | } |
| 71 | } |
| 72 | else |
| 73 | { |
| 74 | throw InvalidArgumentException("TosaRefTensorHandle::Allocate Trying to allocate a TosaRefTensorHandle" |
| 75 | "that already has allocated memory."); |
| 76 | } |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | const void* TosaRefTensorHandle::Map(bool /*unused*/) const |
| 81 | { |
| 82 | return GetPointer(); |
| 83 | } |
| 84 | |
| 85 | void* TosaRefTensorHandle::GetPointer() const |
| 86 | { |
| 87 | if (m_UnmanagedMemory) |
| 88 | { |
| 89 | return m_UnmanagedMemory; |
| 90 | } |
| 91 | else if (m_Pool) |
| 92 | { |
| 93 | return m_MemoryManager->GetPointer(m_Pool); |
| 94 | } |
| 95 | else |
| 96 | { |
| 97 | throw NullPointerException("TosaRefTensorHandle::GetPointer called on unmanaged, unallocated tensor handle"); |
| 98 | } |
| 99 | } |
| 100 | |
| 101 | void TosaRefTensorHandle::CopyOutTo(void* dest) const |
| 102 | { |
| 103 | const void *src = GetPointer(); |
| 104 | ARMNN_ASSERT(src); |
| 105 | memcpy(dest, src, m_TensorInfo.GetNumBytes()); |
| 106 | } |
| 107 | |
| 108 | void TosaRefTensorHandle::CopyInFrom(const void* src) |
| 109 | { |
| 110 | void *dest = GetPointer(); |
| 111 | ARMNN_ASSERT(dest); |
| 112 | memcpy(dest, src, m_TensorInfo.GetNumBytes()); |
| 113 | } |
| 114 | |
| 115 | bool TosaRefTensorHandle::Import(void* memory, MemorySource source) |
| 116 | { |
| 117 | if (m_ImportFlags & static_cast<MemorySourceFlags>(source)) |
| 118 | { |
| 119 | if (m_IsImportEnabled && source == MemorySource::Malloc) |
| 120 | { |
| 121 | // Check memory alignment |
| 122 | if(!CanBeImported(memory, source)) |
| 123 | { |
| 124 | if (m_Imported) |
| 125 | { |
| 126 | m_Imported = false; |
| 127 | m_UnmanagedMemory = nullptr; |
| 128 | } |
| 129 | return false; |
| 130 | } |
| 131 | |
| 132 | // m_UnmanagedMemory not yet allocated. |
| 133 | if (!m_Imported && !m_UnmanagedMemory) |
| 134 | { |
| 135 | m_UnmanagedMemory = memory; |
| 136 | m_Imported = true; |
| 137 | return true; |
| 138 | } |
| 139 | |
| 140 | // m_UnmanagedMemory initially allocated with Allocate(). |
| 141 | if (!m_Imported && m_UnmanagedMemory) |
| 142 | { |
| 143 | return false; |
| 144 | } |
| 145 | |
| 146 | // m_UnmanagedMemory previously imported. |
| 147 | if (m_Imported) |
| 148 | { |
| 149 | m_UnmanagedMemory = memory; |
| 150 | return true; |
| 151 | } |
| 152 | } |
| 153 | } |
| 154 | |
| 155 | return false; |
| 156 | } |
| 157 | |
| 158 | bool TosaRefTensorHandle::CanBeImported(void* memory, MemorySource source) |
| 159 | { |
| 160 | if (m_ImportFlags & static_cast<MemorySourceFlags>(source)) |
| 161 | { |
| 162 | if (m_IsImportEnabled && source == MemorySource::Malloc) |
| 163 | { |
| 164 | uintptr_t alignment = GetDataTypeSize(m_TensorInfo.GetDataType()); |
| 165 | if (reinterpret_cast<uintptr_t>(memory) % alignment) |
| 166 | { |
| 167 | return false; |
| 168 | } |
| 169 | return true; |
| 170 | } |
| 171 | } |
| 172 | return false; |
| 173 | } |
| 174 | |
| 175 | } |