COMPMID-1380: Pre-work for SVE support.

This patch makes the needed infrastructure changes to allow SVE
kernels to be added later on.

Change-Id: Ide5bccac2f47278e93fff3d648231aee2d5f8c2e
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/139070
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
Tested-by: Jenkins <bsgcomp@arm.com>

1 files changed, 69 insertions, 0 deletions

diff --git a/src/core/NEON/kernels/arm_gemm/std_transforms_fixed.hpp b/src/core/NEON/kernels/arm_gemm/std_transforms_fixed.hpp
new file mode 100644
index 0000000000..44124a7b41
--- /dev/null
+++ b/src/core/NEON/kernels/arm_gemm/std_transforms_fixed.hpp
@@ -0,0 +1,69 @@
+/*
+ * 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
+
+namespace arm_gemm {
+
+/*
+ * Define "standard" transforms for the blocked GEMMs with fixed vector
+ * length.
+ *
+ * This assumes that A is interleaved 'height' ways, B is interleaved
+ * 'width' ways and transposed, and that the merge needs to work in 'height'
+ * x 'width' blocks.
+ *
+ * The optional 'block' parameter is for kernels using dot-product type
+ * instructions like UDOT and SDOT.
+ */
+template<typename TOperand, typename TResult, unsigned int height, unsigned int width, unsigned int block=1>
+class StdTransformsFixed
+{
+public:
+    template<typename TIn>
+    void PrepareA(TOperand *out, const TIn *in, const int stride, const int y0,
+                  const int ymax, const int k0, const int kmax, bool transposed) {
+        if (transposed) {
+            Transform<height, block,  true>(out, in, stride, y0, ymax, k0, kmax);
+        } else {
+            Transform<height, block, false>(out, in, stride, y0, ymax, k0, kmax);
+        }
+    }
+
+    template<typename TIn>
+    void PrepareB(TOperand *out, const TIn *in, const int stride, const int x0,
+                  const int xmax, const int k0, const int kmax, bool transposed) {
+        if (transposed) {
+            Transform<width, block, false>(out, in, stride, x0, xmax, k0, kmax);
+        } else {
+            Transform<width, block,  true>(out, in, stride, x0, xmax, k0, kmax);
+        }
+    }
+
+    template<typename TOut>
+    void Merge(TOut *out, const TResult *in, int stride, int y0, int ymax, int x0, int xmax, const TOut alpha, const TOut beta) {
+        MergeResults<width, height>(out, in, stride, y0, ymax, x0, xmax, alpha, beta);
+    }
+};
+
+} // namespace arm_gemm