/*******************************************************************************
* Copyright 2022 Arm Ltd. and affiliates
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*     http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*******************************************************************************/

#include "cpu/acl/acl_prelu.hpp"

namespace dnnl {
namespace impl {
namespace cpu {
namespace acl {

status_t acl_prelu_fwd_t::execute_forward(const exec_ctx_t &ctx) const {

    // Lock here is needed because resource_mapper does not support
    // concurrent multithreaded access.
    std::lock_guard<std::mutex> _lock {this->mtx};

    auto src = CTX_IN_MEM(const void *, DNNL_ARG_SRC);
    auto weights = CTX_IN_MEM(const void *, DNNL_ARG_WEIGHTS);
    auto dst = CTX_OUT_MEM(void *, DNNL_ARG_DST);

    // Retrieve primitive resource and configured Compute Library objects
    auto *acl_resource
            = ctx.get_resource_mapper()->get<acl_prelu_resource_t>(this);

    acl_prelu_obj_t &acl_obj = acl_resource->get_acl_obj();

    acl_obj.src_tensor.allocator()->import_memory(const_cast<void *>(src));
    acl_obj.weights_tensor.allocator()->import_memory(
            const_cast<void *>(weights));
    acl_obj.dst_tensor.allocator()->import_memory(dst);

    acl_obj.prelu.run();

    acl_obj.src_tensor.allocator()->free();
    acl_obj.weights_tensor.allocator()->free();
    acl_obj.dst_tensor.allocator()->free();

    return status::success;
}

} // namespace acl
} // namespace cpu
} // namespace impl
} // namespace dnnl
