#if !defined(TORCH_STABLE_ONLY) && !defined(TORCH_TARGET_VERSION)
/*
 * Copyright 2020-2026 Intel Corporation
 *
 * 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
 */

#pragma once

#include <ATen/native/TensorIterator.h>

namespace at {
namespace native {
namespace xpu {

TORCH_XPU_API void layer_norm_kernel(
    const Tensor& X,
    const Tensor& gamma,
    const Tensor& beta,
    int64_t M,
    int64_t N,
    double eps,
    Tensor* Y,
    Tensor* mean,
    Tensor* rstd);

TORCH_XPU_API void layer_norm_backward_kernel(
    const Tensor& dY,
    const Tensor& X,
    const Tensor& mean,
    const Tensor& rstd,
    const Tensor& gamma,
    int64_t M,
    int64_t N,
    Tensor* dX,
    Tensor* dgamma,
    Tensor* dbeta);

TORCH_XPU_API void rms_norm_kernel(
    const Tensor& X,
    const Tensor& gamma,
    int64_t M,
    int64_t N,
    double eps,
    Tensor* Y,
    Tensor* rstd);

TORCH_XPU_API void rms_norm_backward_kernel(
    const Tensor& dY,
    const Tensor& X,
    const Tensor& rstd,
    const Tensor& gamma,
    int64_t M,
    int64_t N,
    Tensor* dX,
    Tensor* dgamma);

} // namespace xpu
} // namespace native
} // namespace at

#else
#error "This file should not be included when either TORCH_STABLE_ONLY or TORCH_TARGET_VERSION is defined."
#endif  // !defined(TORCH_STABLE_ONLY) && !defined(TORCH_TARGET_VERSION)
