/*! \file */
/* ************************************************************************
 * Copyright (C) 2022-2023 Advanced Micro Devices, Inc. All rights Reserved.
 *
 * 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 "internal/extra/rocsparse_bsrgeam.h"
#include "rocsparse_csrgeam.hpp"
#include "utility.h"

#include "bsrgeam_device.h"
#include <rocprim/rocprim.hpp>

template <unsigned int BLOCKSIZE,
          unsigned int BLOCKDIM,
          unsigned int WFSIZE,
          typename T,
          typename U>
ROCSPARSE_KERNEL(BLOCKSIZE)
void bsrgeam_wf_per_row_multipass_2_3_kernel(rocsparse_direction dir,
                                             rocsparse_int       mb,
                                             rocsparse_int       nb,
                                             rocsparse_int       block_dim,
                                             U                   alpha_device_host,
                                             const rocsparse_int* __restrict__ bsr_row_ptr_A,
                                             const rocsparse_int* __restrict__ bsr_col_ind_A,
                                             const T* __restrict__ bsr_val_A,
                                             U beta_device_host,
                                             const rocsparse_int* __restrict__ bsr_row_ptr_B,
                                             const rocsparse_int* __restrict__ bsr_col_ind_B,
                                             const T* __restrict__ bsr_val_B,
                                             const rocsparse_int* __restrict__ bsr_row_ptr_C,
                                             rocsparse_int* __restrict__ bsr_col_ind_C,
                                             T* __restrict__ bsr_val_C,
                                             rocsparse_index_base idx_base_A,
                                             rocsparse_index_base idx_base_B,
                                             rocsparse_index_base idx_base_C)
{
    auto alpha = load_scalar_device_host(alpha_device_host);
    auto beta  = load_scalar_device_host(beta_device_host);
    bsrgeam_wf_per_row_multipass_2_3_device<BLOCKSIZE, BLOCKDIM, WFSIZE>(dir,
                                                                         mb,
                                                                         nb,
                                                                         block_dim,
                                                                         alpha,
                                                                         bsr_row_ptr_A,
                                                                         bsr_col_ind_A,
                                                                         bsr_val_A,
                                                                         beta,
                                                                         bsr_row_ptr_B,
                                                                         bsr_col_ind_B,
                                                                         bsr_val_B,
                                                                         bsr_row_ptr_C,
                                                                         bsr_col_ind_C,
                                                                         bsr_val_C,
                                                                         idx_base_A,
                                                                         idx_base_B,
                                                                         idx_base_C);
}

template <unsigned int BLOCKSIZE, unsigned int BLOCKDIM, typename T, typename U>
ROCSPARSE_KERNEL(BLOCKSIZE)
void bsrgeam_wf_per_row_multipass_kernel(rocsparse_direction dir,
                                         rocsparse_int       mb,
                                         rocsparse_int       nb,
                                         rocsparse_int       block_dim,
                                         U                   alpha_device_host,
                                         const rocsparse_int* __restrict__ bsr_row_ptr_A,
                                         const rocsparse_int* __restrict__ bsr_col_ind_A,
                                         const T* __restrict__ bsr_val_A,
                                         U beta_device_host,
                                         const rocsparse_int* __restrict__ bsr_row_ptr_B,
                                         const rocsparse_int* __restrict__ bsr_col_ind_B,
                                         const T* __restrict__ bsr_val_B,
                                         const rocsparse_int* __restrict__ bsr_row_ptr_C,
                                         rocsparse_int* __restrict__ bsr_col_ind_C,
                                         T* __restrict__ bsr_val_C,
                                         rocsparse_index_base idx_base_A,
                                         rocsparse_index_base idx_base_B,
                                         rocsparse_index_base idx_base_C)
{
    auto alpha = load_scalar_device_host(alpha_device_host);
    auto beta  = load_scalar_device_host(beta_device_host);
    bsrgeam_wf_per_row_multipass_device<BLOCKSIZE, BLOCKDIM>(dir,
                                                             mb,
                                                             nb,
                                                             block_dim,
                                                             alpha,
                                                             bsr_row_ptr_A,
                                                             bsr_col_ind_A,
                                                             bsr_val_A,
                                                             beta,
                                                             bsr_row_ptr_B,
                                                             bsr_col_ind_B,
                                                             bsr_val_B,
                                                             bsr_row_ptr_C,
                                                             bsr_col_ind_C,
                                                             bsr_val_C,
                                                             idx_base_A,
                                                             idx_base_B,
                                                             idx_base_C);
}

template <unsigned int BLOCKSIZE, unsigned int BLOCKDIM, typename T, typename U>
ROCSPARSE_KERNEL(BLOCKSIZE)
void bsrgeam_block_per_row_multipass_kernel(rocsparse_direction dir,
                                            rocsparse_int       mb,
                                            rocsparse_int       nb,
                                            rocsparse_int       block_dim,
                                            U                   alpha_device_host,
                                            const rocsparse_int* __restrict__ bsr_row_ptr_A,
                                            const rocsparse_int* __restrict__ bsr_col_ind_A,
                                            const T* __restrict__ bsr_val_A,
                                            U beta_device_host,
                                            const rocsparse_int* __restrict__ bsr_row_ptr_B,
                                            const rocsparse_int* __restrict__ bsr_col_ind_B,
                                            const T* __restrict__ bsr_val_B,
                                            const rocsparse_int* __restrict__ bsr_row_ptr_C,
                                            rocsparse_int* __restrict__ bsr_col_ind_C,
                                            T* __restrict__ bsr_val_C,
                                            rocsparse_index_base idx_base_A,
                                            rocsparse_index_base idx_base_B,
                                            rocsparse_index_base idx_base_C)
{
    auto alpha = load_scalar_device_host(alpha_device_host);
    auto beta  = load_scalar_device_host(beta_device_host);
    bsrgeam_block_per_row_multipass_device<BLOCKSIZE, BLOCKDIM>(dir,
                                                                mb,
                                                                nb,
                                                                block_dim,
                                                                alpha,
                                                                bsr_row_ptr_A,
                                                                bsr_col_ind_A,
                                                                bsr_val_A,
                                                                beta,
                                                                bsr_row_ptr_B,
                                                                bsr_col_ind_B,
                                                                bsr_val_B,
                                                                bsr_row_ptr_C,
                                                                bsr_col_ind_C,
                                                                bsr_val_C,
                                                                idx_base_A,
                                                                idx_base_B,
                                                                idx_base_C);
}

template <unsigned int BLOCKSIZE, unsigned int BLOCKDIM, typename T, typename U>
ROCSPARSE_KERNEL(BLOCKSIZE)
void bsrgeam_block_per_row_multipass_kernel2(rocsparse_direction dir,
                                             rocsparse_int       mb,
                                             rocsparse_int       nb,
                                             rocsparse_int       block_dim,
                                             U                   alpha_device_host,
                                             const rocsparse_int* __restrict__ bsr_row_ptr_A,
                                             const rocsparse_int* __restrict__ bsr_col_ind_A,
                                             const T* __restrict__ bsr_val_A,
                                             U beta_device_host,
                                             const rocsparse_int* __restrict__ bsr_row_ptr_B,
                                             const rocsparse_int* __restrict__ bsr_col_ind_B,
                                             const T* __restrict__ bsr_val_B,
                                             const rocsparse_int* __restrict__ bsr_row_ptr_C,
                                             rocsparse_int* __restrict__ bsr_col_ind_C,
                                             T* __restrict__ bsr_val_C,
                                             rocsparse_index_base idx_base_A,
                                             rocsparse_index_base idx_base_B,
                                             rocsparse_index_base idx_base_C)
{
    auto alpha = load_scalar_device_host(alpha_device_host);
    auto beta  = load_scalar_device_host(beta_device_host);
    bsrgeam_block_per_row_multipass_device2<BLOCKSIZE, BLOCKDIM>(dir,
                                                                 mb,
                                                                 nb,
                                                                 block_dim,
                                                                 alpha,
                                                                 bsr_row_ptr_A,
                                                                 bsr_col_ind_A,
                                                                 bsr_val_A,
                                                                 beta,
                                                                 bsr_row_ptr_B,
                                                                 bsr_col_ind_B,
                                                                 bsr_val_B,
                                                                 bsr_row_ptr_C,
                                                                 bsr_col_ind_C,
                                                                 bsr_val_C,
                                                                 idx_base_A,
                                                                 idx_base_B,
                                                                 idx_base_C);
}

template <typename T, typename U>
static rocsparse_status rocsparse_bsrgeam_dispatch(rocsparse_handle          handle,
                                                   rocsparse_direction       dir,
                                                   rocsparse_int             mb,
                                                   rocsparse_int             nb,
                                                   rocsparse_int             block_dim,
                                                   U                         alpha_device_host,
                                                   const rocsparse_mat_descr descr_A,
                                                   rocsparse_int             nnzb_A,
                                                   const T*                  bsr_val_A,
                                                   const rocsparse_int*      bsr_row_ptr_A,
                                                   const rocsparse_int*      bsr_col_ind_A,
                                                   U                         beta_device_host,
                                                   const rocsparse_mat_descr descr_B,
                                                   rocsparse_int             nnzb_B,
                                                   const T*                  bsr_val_B,
                                                   const rocsparse_int*      bsr_row_ptr_B,
                                                   const rocsparse_int*      bsr_col_ind_B,
                                                   const rocsparse_mat_descr descr_C,
                                                   T*                        bsr_val_C,
                                                   const rocsparse_int*      bsr_row_ptr_C,
                                                   rocsparse_int*            bsr_col_ind_C)
{
    if(block_dim == 1)
    {
        RETURN_IF_ROCSPARSE_ERROR(rocsparse_status_not_implemented);
    }

    hipStream_t stream = handle->stream;
    if(block_dim == 2)
    {
#define BSRGEAM_DIM 256
        if(handle->wavefront_size == 32)
        {
            RETURN_IF_HIPLAUNCHKERNELGGL_ERROR(
                (bsrgeam_wf_per_row_multipass_2_3_kernel<BSRGEAM_DIM, 2, 32>),
                dim3((mb - 1) / (BSRGEAM_DIM / 32) + 1),
                dim3(BSRGEAM_DIM),
                0,
                stream,
                dir,
                mb,
                nb,
                block_dim,
                alpha_device_host,
                bsr_row_ptr_A,
                bsr_col_ind_A,
                bsr_val_A,
                beta_device_host,
                bsr_row_ptr_B,
                bsr_col_ind_B,
                bsr_val_B,
                bsr_row_ptr_C,
                bsr_col_ind_C,
                bsr_val_C,
                descr_A->base,
                descr_B->base,
                descr_C->base);
        }
        else
        {
            RETURN_IF_HIPLAUNCHKERNELGGL_ERROR(
                (bsrgeam_wf_per_row_multipass_2_3_kernel<BSRGEAM_DIM, 2, 64>),
                dim3((mb - 1) / (BSRGEAM_DIM / 64) + 1),
                dim3(BSRGEAM_DIM),
                0,
                stream,
                dir,
                mb,
                nb,
                block_dim,
                alpha_device_host,
                bsr_row_ptr_A,
                bsr_col_ind_A,
                bsr_val_A,
                beta_device_host,
                bsr_row_ptr_B,
                bsr_col_ind_B,
                bsr_val_B,
                bsr_row_ptr_C,
                bsr_col_ind_C,
                bsr_val_C,
                descr_A->base,
                descr_B->base,
                descr_C->base);
        }
#undef BSRGEAM_DIM
    }
    else if(block_dim == 3)
    {
#define BSRGEAM_DIM 256
        if(handle->wavefront_size == 32)
        {
            RETURN_IF_HIPLAUNCHKERNELGGL_ERROR(
                (bsrgeam_wf_per_row_multipass_2_3_kernel<BSRGEAM_DIM, 3, 32>),
                dim3((mb - 1) / (BSRGEAM_DIM / 32) + 1),
                dim3(BSRGEAM_DIM),
                0,
                stream,
                dir,
                mb,
                nb,
                block_dim,
                alpha_device_host,
                bsr_row_ptr_A,
                bsr_col_ind_A,
                bsr_val_A,
                beta_device_host,
                bsr_row_ptr_B,
                bsr_col_ind_B,
                bsr_val_B,
                bsr_row_ptr_C,
                bsr_col_ind_C,
                bsr_val_C,
                descr_A->base,
                descr_B->base,
                descr_C->base);
        }
        else
        {
            RETURN_IF_HIPLAUNCHKERNELGGL_ERROR(
                (bsrgeam_wf_per_row_multipass_2_3_kernel<BSRGEAM_DIM, 3, 64>),
                dim3((mb - 1) / (BSRGEAM_DIM / 64) + 1),
                dim3(BSRGEAM_DIM),
                0,
                stream,
                dir,
                mb,
                nb,
                block_dim,
                alpha_device_host,
                bsr_row_ptr_A,
                bsr_col_ind_A,
                bsr_val_A,
                beta_device_host,
                bsr_row_ptr_B,
                bsr_col_ind_B,
                bsr_val_B,
                bsr_row_ptr_C,
                bsr_col_ind_C,
                bsr_val_C,
                descr_A->base,
                descr_B->base,
                descr_C->base);
        }
#undef BSRGEAM_DIM
    }
    else if(block_dim == 4)
    {
#define BSRGEAM_DIM 64
        RETURN_IF_HIPLAUNCHKERNELGGL_ERROR((bsrgeam_wf_per_row_multipass_kernel<BSRGEAM_DIM, 4>),
                                           dim3((mb - 1) / (BSRGEAM_DIM / (4 * 4)) + 1),
                                           dim3(BSRGEAM_DIM),
                                           0,
                                           stream,
                                           dir,
                                           mb,
                                           nb,
                                           block_dim,
                                           alpha_device_host,
                                           bsr_row_ptr_A,
                                           bsr_col_ind_A,
                                           bsr_val_A,
                                           beta_device_host,
                                           bsr_row_ptr_B,
                                           bsr_col_ind_B,
                                           bsr_val_B,
                                           bsr_row_ptr_C,
                                           bsr_col_ind_C,
                                           bsr_val_C,
                                           descr_A->base,
                                           descr_B->base,
                                           descr_C->base);
#undef BSRGEAM_DIM
    }
    else if(block_dim <= 8)
    {
#define BSRGEAM_DIM 64
        RETURN_IF_HIPLAUNCHKERNELGGL_ERROR((bsrgeam_wf_per_row_multipass_kernel<BSRGEAM_DIM, 8>),
                                           dim3((mb - 1) / (BSRGEAM_DIM / (8 * 8)) + 1),
                                           dim3(BSRGEAM_DIM),
                                           0,
                                           stream,
                                           dir,
                                           mb,
                                           nb,
                                           block_dim,
                                           alpha_device_host,
                                           bsr_row_ptr_A,
                                           bsr_col_ind_A,
                                           bsr_val_A,
                                           beta_device_host,
                                           bsr_row_ptr_B,
                                           bsr_col_ind_B,
                                           bsr_val_B,
                                           bsr_row_ptr_C,
                                           bsr_col_ind_C,
                                           bsr_val_C,
                                           descr_A->base,
                                           descr_B->base,
                                           descr_C->base);
#undef BSRGEAM_DIM
    }
    else if(block_dim <= 16)
    {
#define BSRGEAM_DIM 256
        RETURN_IF_HIPLAUNCHKERNELGGL_ERROR(
            (bsrgeam_block_per_row_multipass_kernel2<BSRGEAM_DIM, 16>),
            dim3(mb),
            dim3(BSRGEAM_DIM),
            0,
            stream,
            dir,
            mb,
            nb,
            block_dim,
            alpha_device_host,
            bsr_row_ptr_A,
            bsr_col_ind_A,
            bsr_val_A,
            beta_device_host,
            bsr_row_ptr_B,
            bsr_col_ind_B,
            bsr_val_B,
            bsr_row_ptr_C,
            bsr_col_ind_C,
            bsr_val_C,
            descr_A->base,
            descr_B->base,
            descr_C->base);
#undef BSRGEAM_DIM
    }
    else if(block_dim <= 32)
    {
#define BSRGEAM_DIM 256
        RETURN_IF_HIPLAUNCHKERNELGGL_ERROR(
            (bsrgeam_block_per_row_multipass_kernel2<BSRGEAM_DIM, 32>),
            dim3(mb),
            dim3(BSRGEAM_DIM),
            0,
            stream,
            dir,
            mb,
            nb,
            block_dim,
            alpha_device_host,
            bsr_row_ptr_A,
            bsr_col_ind_A,
            bsr_val_A,
            beta_device_host,
            bsr_row_ptr_B,
            bsr_col_ind_B,
            bsr_val_B,
            bsr_row_ptr_C,
            bsr_col_ind_C,
            bsr_val_C,
            descr_A->base,
            descr_B->base,
            descr_C->base);
#undef BSRGEAM_DIM
    }
    else
    {
        RETURN_IF_ROCSPARSE_ERROR(rocsparse_status_not_implemented);
    }

    return rocsparse_status_success;
}

template <typename T>
static rocsparse_status rocsparse_bsrgeam_core(rocsparse_handle          handle,
                                               rocsparse_direction       dir,
                                               rocsparse_int             mb,
                                               rocsparse_int             nb,
                                               rocsparse_int             block_dim,
                                               const T*                  alpha_device_host,
                                               const rocsparse_mat_descr descr_A,
                                               rocsparse_int             nnzb_A,
                                               const T*                  bsr_val_A,
                                               const rocsparse_int*      bsr_row_ptr_A,
                                               const rocsparse_int*      bsr_col_ind_A,
                                               const T*                  beta_device_host,
                                               const rocsparse_mat_descr descr_B,
                                               rocsparse_int             nnzb_B,
                                               const T*                  bsr_val_B,
                                               const rocsparse_int*      bsr_row_ptr_B,
                                               const rocsparse_int*      bsr_col_ind_B,
                                               const rocsparse_mat_descr descr_C,
                                               T*                        bsr_val_C,
                                               const rocsparse_int*      bsr_row_ptr_C,
                                               rocsparse_int*            bsr_col_ind_C)
{
    // Stream
    if(block_dim == 1)
    {
        RETURN_IF_ROCSPARSE_ERROR(rocsparse_csrgeam_template(handle,
                                                             mb,
                                                             nb,
                                                             alpha_device_host,
                                                             descr_A,
                                                             nnzb_A,
                                                             bsr_val_A,
                                                             bsr_row_ptr_A,
                                                             bsr_col_ind_A,
                                                             beta_device_host,
                                                             descr_B,
                                                             nnzb_B,
                                                             bsr_val_B,
                                                             bsr_row_ptr_B,
                                                             bsr_col_ind_B,
                                                             descr_C,
                                                             bsr_val_C,
                                                             bsr_row_ptr_C,
                                                             bsr_col_ind_C));
        return rocsparse_status_success;
    }

    if(handle->pointer_mode == rocsparse_pointer_mode_device)
    {
        RETURN_IF_ROCSPARSE_ERROR(rocsparse_bsrgeam_dispatch(handle,
                                                             dir,
                                                             mb,
                                                             nb,
                                                             block_dim,
                                                             alpha_device_host,
                                                             descr_A,
                                                             nnzb_A,
                                                             bsr_val_A,
                                                             bsr_row_ptr_A,
                                                             bsr_col_ind_A,
                                                             beta_device_host,
                                                             descr_B,
                                                             nnzb_B,
                                                             bsr_val_B,
                                                             bsr_row_ptr_B,
                                                             bsr_col_ind_B,
                                                             descr_C,
                                                             bsr_val_C,
                                                             bsr_row_ptr_C,
                                                             bsr_col_ind_C));
        return rocsparse_status_success;
    }
    else
    {
        RETURN_IF_ROCSPARSE_ERROR(rocsparse_bsrgeam_dispatch(handle,
                                                             dir,
                                                             mb,
                                                             nb,
                                                             block_dim,
                                                             *alpha_device_host,
                                                             descr_A,
                                                             nnzb_A,
                                                             bsr_val_A,
                                                             bsr_row_ptr_A,
                                                             bsr_col_ind_A,
                                                             *beta_device_host,
                                                             descr_B,
                                                             nnzb_B,
                                                             bsr_val_B,
                                                             bsr_row_ptr_B,
                                                             bsr_col_ind_B,
                                                             descr_C,
                                                             bsr_val_C,
                                                             bsr_row_ptr_C,
                                                             bsr_col_ind_C));
        return rocsparse_status_success;
    }
}

static rocsparse_status rocsparse_bsrgeam_quickreturn(rocsparse_handle          handle,
                                                      rocsparse_direction       dir,
                                                      rocsparse_int             mb,
                                                      rocsparse_int             nb,
                                                      rocsparse_int             block_dim,
                                                      const void*               alpha,
                                                      const rocsparse_mat_descr descr_A,
                                                      rocsparse_int             nnzb_A,
                                                      const void*               bsr_val_A,
                                                      const void*               bsr_row_ptr_A,
                                                      const void*               bsr_col_ind_A,
                                                      const void*               beta,
                                                      const rocsparse_mat_descr descr_B,
                                                      rocsparse_int             nnzb_B,
                                                      const void*               bsr_val_B,
                                                      const void*               bsr_row_ptr_B,
                                                      const void*               bsr_col_ind_B,
                                                      const rocsparse_mat_descr descr_C,
                                                      void*                     bsr_val_C,
                                                      const void*               bsr_row_ptr_C,
                                                      void*                     bsr_col_ind_C)
{
    if(mb == 0 || nb == 0 || (nnzb_A == 0 && nnzb_B == 0))
    {
        return rocsparse_status_success;
    }

    return rocsparse_status_continue;
}

rocsparse_status rocsparse_bsrgeam_checkarg(rocsparse_handle          handle, //0
                                            rocsparse_direction       dir, //1
                                            rocsparse_int             mb, //2
                                            rocsparse_int             nb, //3
                                            rocsparse_int             block_dim, //4
                                            const void*               alpha, //5
                                            const rocsparse_mat_descr descr_A, //6
                                            rocsparse_int             nnzb_A, //7
                                            const void*               bsr_val_A, //8
                                            const rocsparse_int*      bsr_row_ptr_A, //9
                                            const rocsparse_int*      bsr_col_ind_A, //10
                                            const void*               beta, //11
                                            const rocsparse_mat_descr descr_B, //12
                                            rocsparse_int             nnzb_B, //13
                                            const void*               bsr_val_B, //14
                                            const rocsparse_int*      bsr_row_ptr_B, //15
                                            const rocsparse_int*      bsr_col_ind_B, //16
                                            const rocsparse_mat_descr descr_C, //17
                                            void*                     bsr_val_C, //18
                                            const rocsparse_int*      bsr_row_ptr_C, //19
                                            rocsparse_int*            bsr_col_ind_C) //20
{
    ROCSPARSE_CHECKARG_HANDLE(0, handle);
    ROCSPARSE_CHECKARG_POINTER(6, descr_A);
    ROCSPARSE_CHECKARG_POINTER(12, descr_B);
    ROCSPARSE_CHECKARG_POINTER(17, descr_C);

    ROCSPARSE_CHECKARG(6,
                       descr_A,
                       (descr_A->type != rocsparse_matrix_type_general),
                       rocsparse_status_not_implemented);
    ROCSPARSE_CHECKARG(12,
                       descr_B,
                       (descr_B->type != rocsparse_matrix_type_general),
                       rocsparse_status_not_implemented);
    ROCSPARSE_CHECKARG(17,
                       descr_C,
                       (descr_C->type != rocsparse_matrix_type_general),
                       rocsparse_status_not_implemented);

    ROCSPARSE_CHECKARG(6,
                       descr_A,
                       (descr_A->storage_mode != rocsparse_storage_mode_sorted),
                       rocsparse_status_requires_sorted_storage);
    ROCSPARSE_CHECKARG(12,
                       descr_B,
                       (descr_B->storage_mode != rocsparse_storage_mode_sorted),
                       rocsparse_status_requires_sorted_storage);
    ROCSPARSE_CHECKARG(17,
                       descr_C,
                       (descr_C->storage_mode != rocsparse_storage_mode_sorted),
                       rocsparse_status_requires_sorted_storage);

    ROCSPARSE_CHECKARG_ENUM(1, dir);
    ROCSPARSE_CHECKARG_SIZE(2, mb);
    ROCSPARSE_CHECKARG_SIZE(3, nb);

    ROCSPARSE_CHECKARG_SIZE(4, block_dim);
    ROCSPARSE_CHECKARG(4, block_dim, (block_dim == 0), rocsparse_status_invalid_size);

    ROCSPARSE_CHECKARG_SIZE(7, nnzb_A);
    ROCSPARSE_CHECKARG_SIZE(13, nnzb_B);

    const rocsparse_status status = rocsparse_bsrgeam_quickreturn(handle,
                                                                  dir,
                                                                  mb,
                                                                  nb,
                                                                  block_dim,
                                                                  alpha,
                                                                  descr_A,
                                                                  nnzb_A,
                                                                  bsr_val_A,
                                                                  bsr_row_ptr_A,
                                                                  bsr_col_ind_A,
                                                                  beta,
                                                                  descr_B,
                                                                  nnzb_B,
                                                                  bsr_val_B,
                                                                  bsr_row_ptr_B,
                                                                  bsr_col_ind_B,
                                                                  descr_C,
                                                                  bsr_val_C,
                                                                  bsr_row_ptr_C,
                                                                  bsr_col_ind_C);
    if(status != rocsparse_status_continue)
    {
        RETURN_IF_ROCSPARSE_ERROR(status);
        return rocsparse_status_success;
    }

    ROCSPARSE_CHECKARG_POINTER(5, alpha);
    ROCSPARSE_CHECKARG_ARRAY(8, nnzb_A, bsr_val_A);
    ROCSPARSE_CHECKARG_ARRAY(9, mb, bsr_row_ptr_A);
    ROCSPARSE_CHECKARG_ARRAY(10, nnzb_A, bsr_col_ind_A);
    ROCSPARSE_CHECKARG_POINTER(11, beta);
    ROCSPARSE_CHECKARG_ARRAY(14, nnzb_B, bsr_val_B);
    ROCSPARSE_CHECKARG_ARRAY(15, mb, bsr_row_ptr_B);
    ROCSPARSE_CHECKARG_ARRAY(16, nnzb_B, bsr_col_ind_B);
    ROCSPARSE_CHECKARG_ARRAY(19, mb, bsr_row_ptr_C);

    if(bsr_col_ind_C == nullptr || bsr_val_C == nullptr)
    {
        rocsparse_int start = 0;
        rocsparse_int end   = 0;
        if(bsr_row_ptr_C != nullptr)
        {
            RETURN_IF_HIP_ERROR(hipMemcpyAsync(&end,
                                               &bsr_row_ptr_C[mb],
                                               sizeof(rocsparse_int),
                                               hipMemcpyDeviceToHost,
                                               handle->stream));
            RETURN_IF_HIP_ERROR(hipMemcpyAsync(&start,
                                               &bsr_row_ptr_C[0],
                                               sizeof(rocsparse_int),
                                               hipMemcpyDeviceToHost,
                                               handle->stream));
            RETURN_IF_HIP_ERROR(hipStreamSynchronize(handle->stream));
        }

        const rocsparse_int nnzb_C = (end - start);
        ROCSPARSE_CHECKARG_ARRAY(18, nnzb_C, bsr_val_C);
        ROCSPARSE_CHECKARG_ARRAY(20, nnzb_C, bsr_col_ind_C);
    }

    return rocsparse_status_continue;
}

template <typename... P>
static rocsparse_status rocsparse_bsrgeam_impl(P&&... p)
{
    log_trace("rocsparse_Xbsrgeam", p...);

    const rocsparse_status status = rocsparse_bsrgeam_checkarg(p...);
    if(status != rocsparse_status_continue)
    {
        RETURN_IF_ROCSPARSE_ERROR(status);
        return rocsparse_status_success;
    }

    RETURN_IF_ROCSPARSE_ERROR(rocsparse_bsrgeam_core(p...));
    return rocsparse_status_success;
}

/*
 * ===========================================================================
 *    C wrapper
 * ===========================================================================
 */

#define C_IMPL(NAME, TYPE)                                                    \
    extern "C" rocsparse_status NAME(rocsparse_handle          handle,        \
                                     rocsparse_direction       dir,           \
                                     rocsparse_int             mb,            \
                                     rocsparse_int             nb,            \
                                     rocsparse_int             block_dim,     \
                                     const TYPE*               alpha,         \
                                     const rocsparse_mat_descr descr_A,       \
                                     rocsparse_int             nnzb_A,        \
                                     const TYPE*               bsr_val_A,     \
                                     const rocsparse_int*      bsr_row_ptr_A, \
                                     const rocsparse_int*      bsr_col_ind_A, \
                                     const TYPE*               beta,          \
                                     const rocsparse_mat_descr descr_B,       \
                                     rocsparse_int             nnzb_B,        \
                                     const TYPE*               bsr_val_B,     \
                                     const rocsparse_int*      bsr_row_ptr_B, \
                                     const rocsparse_int*      bsr_col_ind_B, \
                                     const rocsparse_mat_descr descr_C,       \
                                     TYPE*                     bsr_val_C,     \
                                     const rocsparse_int*      bsr_row_ptr_C, \
                                     rocsparse_int*            bsr_col_ind_C) \
    try                                                                       \
    {                                                                         \
        RETURN_IF_ROCSPARSE_ERROR(rocsparse_bsrgeam_impl(handle,              \
                                                         dir,                 \
                                                         mb,                  \
                                                         nb,                  \
                                                         block_dim,           \
                                                         alpha,               \
                                                         descr_A,             \
                                                         nnzb_A,              \
                                                         bsr_val_A,           \
                                                         bsr_row_ptr_A,       \
                                                         bsr_col_ind_A,       \
                                                         beta,                \
                                                         descr_B,             \
                                                         nnzb_B,              \
                                                         bsr_val_B,           \
                                                         bsr_row_ptr_B,       \
                                                         bsr_col_ind_B,       \
                                                         descr_C,             \
                                                         bsr_val_C,           \
                                                         bsr_row_ptr_C,       \
                                                         bsr_col_ind_C));     \
        return rocsparse_status_success;                                      \
    }                                                                         \
    catch(...)                                                                \
    {                                                                         \
        RETURN_ROCSPARSE_EXCEPTION();                                         \
    }

C_IMPL(rocsparse_sbsrgeam, float);
C_IMPL(rocsparse_dbsrgeam, double);
C_IMPL(rocsparse_cbsrgeam, rocsparse_float_complex);
C_IMPL(rocsparse_zbsrgeam, rocsparse_double_complex);

#undef C_IMPL
