COMPMID-881: RSH new arm_gemm interface.

Change-Id: I1e2a1a77097d8017c274af3f97eba6964f80f5fa
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/122592
Tested-by: Jenkins <bsgcomp@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>

1 files changed, 75 insertions, 0 deletions

diff --git a/src/core/NEON/kernels/arm_gemm/mergeresults.hpp b/src/core/NEON/kernels/arm_gemm/mergeresults.hpp
new file mode 100644
index 0000000000..2ab01d680c
--- /dev/null
+++ b/src/core/NEON/kernels/arm_gemm/mergeresults.hpp
@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2017-2018 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
+
+/* As some of the merges need these headers, but are all included in the
+ * arm_gemm namespace, put these headers here.  */
+#include <arm_neon.h>
+
+#include "asmlib.hpp"
+#include "utils.hpp"
+
+namespace arm_gemm
+{
+template <unsigned int width, unsigned int height, typename Tin, typename Tout>
+inline void MergeResults(Tout *out, const Tin *in, int ldc, int y0, int ymax, int x0, int xmax, const Tout alpha, const Tout beta)
+{
+    int full_y_blocks = (ymax - y0) / height;
+    int y_remainder   = (ymax - y0) % height;
+    int y_blocks      = full_y_blocks + (y_remainder ? 1 : 0);
+
+    int full_x_blocks = (xmax - x0) / width;
+    int x_remainder   = (xmax - x0) % width;
+    int x_blocks      = full_x_blocks + (x_remainder ? 1 : 0);
+
+    for(int y_block = 0; y_block < y_blocks; y_block++)
+    {
+        int ybase = y0 + (y_block * height);
+
+        int fill_rows = (y_block < full_y_blocks) ? height : y_remainder;
+
+        for(int x_block = 0; x_block < x_blocks; x_block++)
+        {
+            int xbase = x0 + (x_block * width);
+
+            int fill_cols = (x_block < full_x_blocks) ? width : x_remainder;
+
+            for(int row = 0; row < fill_rows; row++)
+            {
+                for(int col = 0; col < fill_cols; col++)
+                {
+                    Tout &p = out[(ybase + row) * ldc + xbase + col];
+
+                    p = (p * alpha) + (beta * in[row * width + col]);
+                }
+            }
+
+            in += (width * height);
+        }
+    }
+}
+
+#include "merges/list.hpp"
+
+} // namespace arm_gemm