Rename NEGEMMAssembly to CpuGemmAssembly

- Dispatch, WrapperKernel has been renamed and moved
- Header files for assembly kernels have been moved

Partially Resolves: COMPMID-4506

Change-Id: I6c2f391bb95ba1ce7ca195d0efa57b9c3225570f
Signed-off-by: Sang-Hoon Park <sang-hoon.park@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/5637
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
diff --git a/src/core/cpu/kernels/assembly/gemm_common.hpp b/src/core/cpu/kernels/assembly/gemm_common.hpp
new file mode 100644
index 0000000..4af85ed
--- /dev/null
+++ b/src/core/cpu/kernels/assembly/gemm_common.hpp
@@ -0,0 +1,229 @@
+/*
+ * Copyright (c) 2017-2021 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.
+ */
+#pragma once
+
+#include "convolution_parameters.hpp"
+#include "ndrange.hpp"
+
+#include <cstddef>
+
+namespace arm_gemm
+{
+// Abstract class for the GEMM/GEMV functions.
+//
+// GEMM implementations may be "native" (never require any input
+// permutation), "pretransposed" (require permutation up-front) or require
+// working space (permute as they go along).  This interface should support
+// all of them.
+
+// The real GemmCommon class is templated based on the operand and return
+// type.  This is an interface class which is independent of those types.
+class IGemmCommon
+{
+public:
+    /* Pass in the pointers to the arrays to be operated on and their
+     * strides.  This "generic" version uses void *s, the preferred version
+     * is the one provided by templated GemmCommon (below) which takes
+     * appropriately typed pointers.  If B is pretransposed (see below) then
+     * the settings for B here are ignored.
+     */
+    virtual void set_arrays_generic(const void *A, const int lda, const int A_batch_stride, const int A_multi_stride,
+                                    const void *B, const int ldb, /* batches share B */ const int B_multi_stride,
+                                    void *C, const int ldc, const int C_batch_stride, const int C_multi_stride,
+                                    const void *bias, /* no row or batch stride needed */ const int bias_multi_stride) = 0;
+
+    /** @returns an ndrange containing ranges of the compute space which can be
+     * broken up and parallelised over
+     */
+    virtual ndrange_t get_window_size() const = 0;
+
+    /* The maximum thread count is specified when the GEMM is created.  Some
+     * implementations need to know how many threads will actually run in
+     * order to work properly.
+     *
+     * In some cases, after creating the GEMM the number of threads needs to
+     * be reduced (e.g. not enough work to split across threads).  This
+     * method allows the number of actual threads to be run to be set (must
+     * be equal or lower).
+     *
+     * This has an empty default implementation, as GEMMs which don't care
+     * about thread count can safely ignore this.
+     */
+    virtual void set_nthreads(int) {};
+
+    /* Whether this GEMM can be dynamically scheduled or not. */
+    virtual bool supports_dynamic_scheduling() const
+    {
+        return false;
+    }
+
+    /** Main execute member fucntion
+     * @param [in] work_range     specifies the range of work we want to be computed, total range defined by get_window_size()
+     * @param [in] thread_locator where are we inside of the thread space
+     * @param [in] threadid       a unique threadid
+     */
+    virtual void execute(const ndcoord_t &work_range, const ndcoord_t &thread_locator, int threadid) = 0;
+
+    /*** Working space interface (optional) ***/
+    /* Total number of bytes of temporary working space needed.  If zero, it's not necessary to call set_working_space(). */
+    virtual size_t get_working_size() const
+    {
+        return 0;
+    }
+    /* Provide working space buffer - the void * passed in must remain allocated for the duration of any execute calls. */
+    virtual void set_working_space(void *) {};
+
+    /*** "Pretransposed" interface (optional) ***/
+    /* Is this object set up for pretranspose?  If so, pretranspose_array() needs to be called before execute(); */
+    virtual bool B_is_pretransposed() const
+    {
+        return false;
+    }
+    /* Does pretranspose still need to be done? */
+    virtual bool B_pretranspose_required() const
+    {
+        return false;
+    }
+    /* Total number of bytes of space needed for pretransposed arrays. */
+    virtual size_t get_B_pretransposed_array_size() const
+    {
+        return 0;
+    }
+    /* Perform pretranspose - arguments are output, input, input row stride and input multi stride. */
+    /* The "real" version of this depends on the templated operand type (see below).  */
+    virtual void pretranspose_B_array_generic(void *, const void *, const int, const int) = 0;
+    /* Set pretransposed data - the void * passed in must previously have been passed to pretranspose_B_array() for the same or a similar GEMM. */
+    virtual void set_pretransposed_B_data(void *)
+    {
+    }
+
+    /*** "Quantized bias" interface (optional) ***/
+    /* Set the bias vector for quantized GEMMs */
+    virtual void set_quantized_bias(const int32_t *, size_t)
+    {
+    }
+
+    /*** Indirect interface (optional) ***/
+    /* Set the indirect table.  This comprises a number of values per kernel point, and a densely packed array of pointers,
+     * multis * batches * kernel_points */
+    virtual void set_indirect_parameters_generic(size_t, const void *const *const *)
+    {
+    }
+
+    /*** Convolution interface (optional) ***/
+    /* Set the convolution parameters. */
+    virtual void set_convolution_parameters(ConvolutionParameters)
+    {
+    }
+
+    // Destructor
+    virtual ~IGemmCommon()
+    {
+    }
+};
+
+/* "Real" GemmCommon class which is templated on the operand and return types.
+ *
+ * In addition to correctly typed versions of the functions that operate on
+ * operand and return data, this class provides a default implementation of
+ * 'set_arrays' to capture the provided arguments in protected class
+ * members, as essentially any implementation will need these.
+ */
+template <typename To, typename Tr>
+class GemmCommon : public IGemmCommon
+{
+protected:
+    const To *_Aptr              = nullptr;
+    int       _lda               = 0;
+    int       _A_batch_stride    = 0;
+    int       _A_multi_stride    = 0;
+    const To *_Bptr              = nullptr;
+    int       _ldb               = 0;
+    int       _B_multi_stride    = 0;
+    Tr       *_Cptr              = nullptr;
+    int       _ldc               = 0;
+    int       _C_batch_stride    = 0;
+    int       _C_multi_stride    = 0;
+    const Tr *_bias              = nullptr;
+    int       _bias_multi_stride = 0;
+
+public:
+    /* Pass in the pointers to the arrays to be operated on and their
+     * strides (templated version with appropriate types). */
+    virtual void set_arrays(const To *A, const int lda, const int A_batch_stride, const int A_multi_stride,
+                            const To *B, const int ldb, /* batches share B */ const int B_multi_stride,
+                            Tr *C, const int ldc, const int C_batch_stride, const int C_multi_stride,
+                            const Tr *bias, /* no row or batch stride needed */ const int bias_multi_stride)
+    {
+        _Aptr              = A;
+        _lda               = lda;
+        _A_batch_stride    = A_batch_stride;
+        _A_multi_stride    = A_multi_stride;
+        _Bptr              = B;
+        _ldb               = ldb;
+        _B_multi_stride    = B_multi_stride;
+        _Cptr              = C;
+        _ldc               = ldc;
+        _C_batch_stride    = C_batch_stride;
+        _C_multi_stride    = C_multi_stride;
+        _bias              = bias;
+        _bias_multi_stride = bias_multi_stride;
+    }
+
+    /* Implementation of the void * overload which casts its arguments to the appropriate type. */
+    void set_arrays_generic(const void *A, const int lda, const int A_batch_stride, const int A_multi_stride,
+                            const void *B, const int ldb, /* batches share B */ const int B_multi_stride,
+                            void *C, const int ldc, const int C_batch_stride, const int C_multi_stride,
+                            const void *bias, /* no row or batch stride needed */ const int bias_multi_stride) override
+    {
+        set_arrays(static_cast<const To *>(A), lda, A_batch_stride, A_multi_stride,
+                   static_cast<const To *>(B), ldb, B_multi_stride,
+                   static_cast<Tr *>(C), ldc, C_batch_stride, C_multi_stride,
+                   static_cast<const Tr *>(bias), bias_multi_stride);
+    }
+
+    /*** "Pretransposed" interface ***/
+
+    /* Perform pretranspose - the void * passed in must remain allocated for the duration of any execute calls. */
+    /* Arguments are: output buffer pointer, source pointer, source row stride, source multi stride */
+    virtual void pretranspose_B_array(void *, const To *, const int, const int) {};
+
+    /* Implementation of the void * overload which casts its arguments to the appropriate type. */
+    void pretranspose_B_array_generic(void *out, const void *in, const int row_stride, const int multi_stride) override
+    {
+        pretranspose_B_array(out, static_cast<const To *>(in), row_stride, multi_stride);
+    }
+
+    /*** Indirect interface ***/
+    virtual void set_indirect_parameters(size_t, const To *const *const *)
+    {
+    }
+
+    void set_indirect_parameters_generic(size_t sz, const void *const *const *ptr) override
+    {
+        set_indirect_parameters(sz, reinterpret_cast<const To *const *const *>(ptr));
+    }
+};
+
+} // namespace arm_gemm