COMPMID-485: Memory Manager

Change-Id: Ib421b7622838f050038cd81e7426bb1413a7d6e6
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/87376
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>

1 files changed, 99 insertions, 0 deletions

diff --git a/src/runtime/BlobMemoryPool.cpp b/src/runtime/BlobMemoryPool.cpp
new file mode 100644
index 0000000000..6571c75fe7
--- /dev/null
+++ b/src/runtime/BlobMemoryPool.cpp
@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2017 ARM Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * 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 "arm_compute/runtime/BlobMemoryPool.h"
+
+#include "arm_compute/core/Error.h"
+#include "arm_compute/runtime/IMemoryPool.h"
+#include "arm_compute/runtime/Types.h"
+#include "support/ToolchainSupport.h"
+
+#include <vector>
+
+using namespace arm_compute;
+
+BlobMemoryPool::BlobMemoryPool(IAllocator *allocator, std::vector<size_t> blob_sizes)
+    : _allocator(allocator), _blobs(), _blob_sizes(std::move(blob_sizes))
+{
+    ARM_COMPUTE_ERROR_ON(!allocator);
+    allocate_blobs(_blob_sizes);
+}
+
+BlobMemoryPool::~BlobMemoryPool()
+{
+    ARM_COMPUTE_ERROR_ON(!_allocator);
+    free_blobs();
+}
+
+void BlobMemoryPool::acquire(MemoryMappings &handles)
+{
+    ARM_COMPUTE_ERROR_ON(handles.size() > _blobs.size());
+
+    // Set memory to handlers
+    for(auto &handle : handles)
+    {
+        ARM_COMPUTE_ERROR_ON(handle.first == nullptr);
+        *handle.first = _blobs[handle.second];
+    }
+}
+
+void BlobMemoryPool::release(MemoryMappings &handles)
+{
+    for(auto &handle : handles)
+    {
+        ARM_COMPUTE_ERROR_ON(handle.first == nullptr);
+        *handle.first = nullptr;
+    }
+}
+
+MappingType BlobMemoryPool::mapping_type() const
+{
+    return MappingType::BLOBS;
+}
+
+std::unique_ptr<IMemoryPool> BlobMemoryPool::duplicate()
+{
+    ARM_COMPUTE_ERROR_ON(!_allocator);
+    return support::cpp14::make_unique<BlobMemoryPool>(_allocator, _blob_sizes);
+}
+
+void BlobMemoryPool::allocate_blobs(const std::vector<size_t> &sizes)
+{
+    ARM_COMPUTE_ERROR_ON(!_allocator);
+
+    for(const auto &size : sizes)
+    {
+        _blobs.push_back(_allocator->allocate(size, 0));
+    }
+}
+
+void BlobMemoryPool::free_blobs()
+{
+    ARM_COMPUTE_ERROR_ON(!_allocator);
+
+    for(auto &blob : _blobs)
+    {
+        _allocator->free(blob);
+    }
+    _blobs.clear();
+}
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