COMPMID-481: Add AArch64 GEMM

Change-Id: I34f94f99cb05f0eabafee13c5e623ee779b72360
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/83741
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
Reviewed-by: Pablo Tello <pablo.tello@arm.com>

1 files changed, 85 insertions, 0 deletions

diff --git a/arm_compute/core/NEON/kernels/NEGEMMAssemblyBaseKernel.h b/arm_compute/core/NEON/kernels/NEGEMMAssemblyBaseKernel.h
new file mode 100644
index 0000000000..e298bfdebd
--- /dev/null
+++ b/arm_compute/core/NEON/kernels/NEGEMMAssemblyBaseKernel.h
@@ -0,0 +1,85 @@
+/*
+ * 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.
+ */
+#ifndef __ARM_COMPUTE_NEGEMMASSEMBLYBASE_H__
+#define __ARM_COMPUTE_NEGEMMASSEMBLYBASE_H__
+
+#include "arm_compute/core/NEON/INEKernel.h"
+
+namespace arm_compute
+{
+class ITensor;
+
+/** AssemblyBase/armv7a NEON kernel to multiply two input matrices "A" and "B". */
+class NEGEMMAssemblyBaseKernel : public INEKernel
+{
+public:
+    /** Constructor */
+    NEGEMMAssemblyBaseKernel()
+        : _input0(nullptr), _input1(nullptr), _output(nullptr), _workspace(nullptr), _alpha(1.f), _beta(0.f), _transform_0(true), _transform_1(true)
+    {
+    }
+
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    NEGEMMAssemblyBaseKernel(const NEGEMMAssemblyBaseKernel &) = delete;
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    NEGEMMAssemblyBaseKernel &operator=(const NEGEMMAssemblyBaseKernel &) = delete;
+    /** Allow instances of this class to be moved */
+    NEGEMMAssemblyBaseKernel(NEGEMMAssemblyBaseKernel &&) = default;
+    /** Allow instances of this class to be moved */
+    NEGEMMAssemblyBaseKernel &operator=(NEGEMMAssemblyBaseKernel &&) = default;
+
+    virtual ~NEGEMMAssemblyBaseKernel() = default;
+
+    /** Initialise the kernel's input and output.
+     *
+     * The computed function is C = a * AxB + b * C.
+     *
+     * @param[in]     input0      Input tensor containing the Matrix A. Data types supported: F32
+     * @param[in]     input1      Input tensor containing the Matrix B. Data types supported: same as @p input0
+     * @param[in,out] output      Output tensor to store the result of matrix multiplication. If @p beta is not zero the values are multiplied by @p beta before the result is accumulated. Otherwise the values are overwritten by the result. Data types supported: same as @p input0.
+     * @param[out]    workspace   Space for intermediate results.
+     * @param[in]     alpha       Weight of the matrix product
+     * @param[in]     beta        Weight of the accumulation.
+     * @param[in]     transform_0 If true the kernel will transform @p input0 prior to the multiplication.
+     * @param[in]     transform_1 If true the kernel will transform @p input1 prior to the multiplication.
+     */
+    void configure(const ITensor *input0, const ITensor *input1, ITensor *output, ITensor *workspace, float alpha = 1.f, float beta = 0.f, bool transform_0 = true, bool transform_1 = true)
+    {
+        internal_configure(input0, input1, output, workspace, alpha, beta, transform_0, transform_1);
+    }
+
+protected:
+    virtual void internal_configure(const ITensor *input0, const ITensor *input1, ITensor *output, ITensor *workspace, float alpha, float beta, bool transform_0, bool transform_1) = 0;
+
+    const ITensor *_input0;
+    const ITensor *_input1;
+    ITensor       *_output;
+    ITensor       *_workspace;
+    float          _alpha;
+    float          _beta;
+    bool           _transform_0;
+    bool           _transform_1;
+};
+} // namespace arm_compute
+#endif /*__ARM_COMPUTE_NEGEMMASSEMBLYBASE_H__*/