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+/***************************************************************************************************
+ * Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted
+ * provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright notice, this list of
+ * conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, this list of
+ * conditions and the following disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ * * Neither the name of the NVIDIA CORPORATION nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific prior written
+ * permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TOR (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ **************************************************************************************************/
+/*! \file
+ \brief Defines accessors for loading and storing fragments to memory efficiently.
+*/
+#pragma once
+
+#include <cutlass/load_store.h>
+#include <cutlass/vector.h>
+
+namespace cutlass {
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+
+template <IteratorFragment::Kind kIteratorFragment,
+ int kAccessSize,
+ typename Scalar_,
+ MemorySpace::Kind Memory_,
+ typename FragmentElement_,
+ int kStride>
+struct FragmentLoad {};
+
+template <int kAccessSize,
+ typename Scalar_,
+ MemorySpace::Kind Memory_,
+ typename FragmentElement_,
+ int kStride>
+struct FragmentLoad<IteratorFragment::kWmmaMatrix,
+ kAccessSize,
+ Scalar_,
+ Memory_,
+ FragmentElement_,
+ kStride> {
+ /// The output type.
+ typedef FragmentElement_ AccessType;
+
+ /// The load function.
+ static CUTLASS_DEVICE void load(AccessType& value, Scalar_ const* pointer, int offset) {
+ value.load(&pointer[offset], kStride);
+ }
+};
+
+template <int kAccessSize,
+ typename Scalar_,
+ MemorySpace::Kind Memory_,
+ typename FragmentElement_,
+ int kStride>
+struct FragmentLoad<IteratorFragment::kScalar,
+ kAccessSize,
+ Scalar_,
+ Memory_,
+ FragmentElement_,
+ kStride> {
+ /// The output type.
+ typedef typename Vectorize<Scalar_, kAccessSize>::Type AccessType;
+
+ /// The load function.
+ static CUTLASS_DEVICE void load(AccessType& value, Scalar_ const* pointer, int offset) {
+ Load<Scalar_, kAccessSize, Memory_>::load(value, pointer, offset);
+ }
+};
+
+template <IteratorFragment::Kind kIteratorFragment,
+ int kAccessSize,
+ typename Scalar_,
+ MemorySpace::Kind Memory_,
+ typename FragmentElement_,
+ int kStride>
+struct FragmentStore {};
+
+template <int kAccessSize,
+ typename Scalar_,
+ MemorySpace::Kind Memory_,
+ typename FragmentElement_,
+ int kStride>
+struct FragmentStore<IteratorFragment::kWmmaMatrix,
+ kAccessSize,
+ Scalar_,
+ Memory_,
+ FragmentElement_,
+ kStride> {
+ /// The input type.
+ typedef FragmentElement_ AccessType;
+
+ /// The store function.
+ static CUTLASS_DEVICE void store(AccessType const& value, Scalar_* pointer, int offset) {
+ value.store(&pointer[offset], kStride);
+ }
+};
+
+template <int kAccessSize,
+ typename Scalar_,
+ MemorySpace::Kind Memory_,
+ typename FragmentElement_,
+ int kStride>
+struct FragmentStore<IteratorFragment::kScalar,
+ kAccessSize,
+ Scalar_,
+ Memory_,
+ FragmentElement_,
+ kStride> {
+ /// The input type.
+ typedef typename Vectorize<Scalar_, kAccessSize>::Type AccessType;
+
+ /// The store function.
+ static CUTLASS_DEVICE void store(AccessType const& value, Scalar_* pointer, int offset) {
+ Store<Scalar_, kAccessSize, Memory_>::store(value, pointer, offset);
+ }
+};
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+
+} /// namespace cutlass