1 files changed, 84 insertions, 0 deletions
diff --git a/src/runtime/NEON/functions/NEGEMMLowp.cpp b/src/runtime/NEON/functions/NEGEMMLowp.cpp
new file mode 100644
index 0000000000..b64f769459
--- /dev/null
+++ b/src/runtime/NEON/functions/NEGEMMLowp.cpp
@@ -0,0 +1,84 @@
+/*
+ * 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.
+ */
+#include "arm_compute/runtime/NEON/functions/NEGEMMLowp.h"
+
+#include "arm_compute/core/Error.h"
+#include "arm_compute/core/Helpers.h"
+#include "arm_compute/core/ITensor.h"
+#include "arm_compute/core/TensorInfo.h"
+#include "arm_compute/core/Types.h"
+#include "arm_compute/core/Validate.h"
+#include "arm_compute/runtime/NEON/NEScheduler.h"
+#include "arm_compute/runtime/TensorAllocator.h"
+
+using namespace arm_compute;
+
+NEGEMMLowp::NEGEMMLowp()
+    : _interleave_kernel(), _transpose_kernel(), _mm_kernel(), _tmp_a(), _tmp_b()
+{
+}
+
+void NEGEMMLowp::configure(const ITensor *a, const ITensor *b, ITensor *output, int32_t a_offset, int32_t b_offset, int32_t output_offset, int32_t output_mult_int, int32_t shift)
+{
+    ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(a, 1, DataType::U8);
+    ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(b, 1, DataType::U8);
+    ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(output, 1, DataType::U8);
+    ARM_COMPUTE_ERROR_ON_MISMATCHING_DATA_TYPES(a, b, output);
+    ARM_COMPUTE_ERROR_ON_MSG(a->info()->dimension(0) != b->info()->dimension(1), "The product AB is defined only if the number of columns in A is equal to the number of rows in B");
+    ARM_COMPUTE_ERROR_ON_MSG(a->info()->dimension(1) != output->info()->dimension(1), "The C matrix must have the same number of rows as the matrix A");
+    ARM_COMPUTE_ERROR_ON_MSG(b->info()->dimension(0) != output->info()->dimension(0), "The C matrix must have the same number of columns as the matrix C");
+
+    /* The interleaved output matrix will have the following shape: [ a_height * 4, ceil(a_width / 4.0f) ] */
+    TensorShape shape_tmp_a = a->info()->tensor_shape();
+    shape_tmp_a.set(0, a->info()->dimension(0) * 4);
+    shape_tmp_a.set(1, std::ceil(a->info()->dimension(1) / 4.f));
+
+    TensorShape shape_tmp_b = b->info()->tensor_shape();
+    shape_tmp_b.set(0, b->info()->dimension(1) * 16);
+    shape_tmp_b.set(1, std::ceil(b->info()->dimension(0) / 16.f));
+
+    TensorInfo info_a(shape_tmp_a, 1, a->info()->data_type());
+    TensorInfo info_b(shape_tmp_b, 1, b->info()->data_type());
+    _tmp_a.allocator()->init(info_a);
+    _tmp_b.allocator()->init(info_b);
+
+    _interleave_kernel.configure(a, &_tmp_a);
+    _transpose_kernel.configure(b, &_tmp_b);
+    _mm_kernel.configure(&_tmp_a, &_tmp_b, output, a_offset, b_offset, output_offset, output_mult_int, shift);
+
+    _tmp_a.allocator()->allocate();
+    _tmp_b.allocator()->allocate();
+}
+
+void NEGEMMLowp::run()
+{
+    /* Run interleave kernel */
+    NEScheduler::get().schedule(&_interleave_kernel, Window::DimY);
+
+    /* Run transpose kernel */
+    NEScheduler::get().schedule(&_transpose_kernel, Window::DimY);
+
+    /* Run matrix multiply kernel */
+    NEScheduler::get().schedule(&_mm_kernel, Window::DimY);
+}