Add compute kernel writer arguments export

* The information is extracted from the prototype argument
  registry.

Partially resolves: COMPMID-6283
Signed-off-by: Viet-Hoa Do <viet-hoa.do@arm.com>
Change-Id: Ia6d69b7c2a2e411597e76a7e03b7c92199a16990
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/9848
Reviewed-by: SiCong Li <sicong.li@arm.com>
Reviewed-by: Jakub Sujak <jakub.sujak@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Benchmark: Arm Jenkins <bsgcomp@arm.com>

1 files changed, 106 insertions, 0 deletions

diff --git a/compute_kernel_writer/prototype/include/ckw/KernelArgument.h b/compute_kernel_writer/prototype/include/ckw/KernelArgument.h
new file mode 100644
index 0000000000..af8bcde634
--- /dev/null
+++ b/compute_kernel_writer/prototype/include/ckw/KernelArgument.h
@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2023 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 CKW_PROTOTYPE_INCLUDE_CKW_KERNELARGUMENT_H
+#define CKW_PROTOTYPE_INCLUDE_CKW_KERNELARGUMENT_H
+
+#include "ckw/TensorInfo.h"
+#include <cstdint>
+
+namespace ckw
+{
+
+class TensorOperand;
+class TensorComponentOperand;
+
+/** A kernel argument which can be either a tensor storage or a tensor component. */
+class KernelArgument
+{
+public:
+    /** The type of kernel argument. */
+    enum class Type : int32_t
+    {
+        /** The argument that provides the read and/or write access to the tensor data.
+         *
+         * See @ref ckw::TensorStorage to see the list of supported storage type.
+         */
+        TensorStorage,
+
+        /** The argument that provides extra information about the tensor.
+         *
+         * See @ref ckw::TensorComponent to see the list of supported component.
+         */
+        TensorComponent,
+    };
+
+    /** Initialize a new instance of kernel argument class for a tensor storage argument.
+     *
+     * @param[in] tensor The tensor whose storage is exposed to kernel arguments.
+     */
+    KernelArgument(TensorOperand &tensor);
+
+    /** Initialize a new instance of kernel argument class for a tensor component argument.
+     *
+     * @param[in] tensor_component The tensor component to be exposed to kernel arguments.
+     */
+    KernelArgument(TensorComponentOperand &tensor_component);
+
+    /** Get the type of kernel argument. */
+    Type type() const;
+
+    /** Get the argument ID.
+     *
+     * This method can be used to get the tensor info ID of both tensor storage and tensor component arguments.
+     */
+    int32_t id() const;
+
+    /** Get the type of tensor storage.
+     *
+     * This method can only be used for tensor storage argument.
+     */
+    TensorStorageType tensor_storage_type() const;
+
+    /** Get the tensor component type.
+     *
+     * This method can only be used for tensor component argument.
+     */
+    TensorComponentType tensor_component_type() const;
+
+private:
+    Type    _type;
+    int32_t _id;
+
+    union SubId
+    {
+        int32_t             unknown;
+        TensorStorageType   tensor_storage_type;
+        TensorComponentType tensor_component_type;
+    };
+
+    SubId _sub_id{ 0 };
+};
+
+} // namespace ckw
+
+#endif // CKW_PROTOTYPE_INCLUDE_CKW_KERNELARGUMENT_H