/*! \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_bsrgemm.h"
#include "../conversion/rocsparse_identity.hpp"
#include "bsrgemm_device.h"
#include "csrgemm_device.h"
#include "definitions.h"
#include "rocsparse_bsrgemm.hpp"
#include "rocsparse_csrgemm.hpp"
#include "utility.h"

#include "rocsparse_bsrgemm_mult.hpp"
#include "rocsparse_bsrgemm_multadd.hpp"
#include "rocsparse_bsrgemm_scal.hpp"

template <typename I, typename J, typename T>
rocsparse_status rocsparse_bsrgemm_core(rocsparse_handle          handle,
                                        rocsparse_direction       dir,
                                        rocsparse_operation       trans_A,
                                        rocsparse_operation       trans_B,
                                        J                         mb,
                                        J                         nb,
                                        J                         kb,
                                        J                         block_dim,
                                        const T*                  alpha,
                                        const rocsparse_mat_descr descr_A,
                                        I                         nnzb_A,
                                        const T*                  bsr_val_A,
                                        const I*                  bsr_row_ptr_A,
                                        const J*                  bsr_col_ind_A,
                                        const rocsparse_mat_descr descr_B,
                                        I                         nnzb_B,
                                        const T*                  bsr_val_B,
                                        const I*                  bsr_row_ptr_B,
                                        const J*                  bsr_col_ind_B,
                                        const T*                  beta,
                                        const rocsparse_mat_descr descr_D,
                                        I                         nnzb_D,
                                        const T*                  bsr_val_D,
                                        const I*                  bsr_row_ptr_D,
                                        const J*                  bsr_col_ind_D,
                                        const rocsparse_mat_descr descr_C,
                                        T*                        bsr_val_C,
                                        const I*                  bsr_row_ptr_C,
                                        J*                        bsr_col_ind_C,
                                        const rocsparse_mat_info  info_C,
                                        void*                     temp_buffer)
{
    if(block_dim == 1)
    {
        RETURN_IF_ROCSPARSE_ERROR(rocsparse_csrgemm_template(handle,
                                                             trans_A,
                                                             trans_B,
                                                             mb,
                                                             nb,
                                                             kb,
                                                             alpha,
                                                             descr_A,
                                                             nnzb_A,
                                                             bsr_val_A,
                                                             bsr_row_ptr_A,
                                                             bsr_col_ind_A,
                                                             descr_B,
                                                             nnzb_B,
                                                             bsr_val_B,
                                                             bsr_row_ptr_B,
                                                             bsr_col_ind_B,
                                                             beta,
                                                             descr_D,
                                                             nnzb_D,
                                                             bsr_val_D,
                                                             bsr_row_ptr_D,
                                                             bsr_col_ind_D,
                                                             descr_C,
                                                             bsr_val_C,
                                                             bsr_row_ptr_C,
                                                             bsr_col_ind_C,
                                                             info_C,
                                                             temp_buffer));
        return rocsparse_status_success;
    }

    if((info_C->csrgemm_info->mul == false || kb == 0) && info_C->csrgemm_info->add == true)
    {
        RETURN_IF_ROCSPARSE_ERROR(rocsparse_bsrgemm_scal_core(handle,
                                                              mb,
                                                              nb,
                                                              block_dim,
                                                              beta,
                                                              descr_D,
                                                              nnzb_D,
                                                              bsr_val_D,
                                                              bsr_row_ptr_D,
                                                              bsr_col_ind_D,
                                                              descr_C,
                                                              bsr_val_C,
                                                              bsr_row_ptr_C,
                                                              bsr_col_ind_C,
                                                              info_C,
                                                              temp_buffer));
        return rocsparse_status_success;
    }
    else if(info_C->csrgemm_info->mul == true && info_C->csrgemm_info->add == true)
    {
        RETURN_IF_ROCSPARSE_ERROR(rocsparse_bsrgemm_multadd_core(handle,
                                                                 dir,
                                                                 trans_A,
                                                                 trans_B,
                                                                 mb,
                                                                 nb,
                                                                 kb,
                                                                 block_dim,
                                                                 alpha,
                                                                 descr_A,
                                                                 nnzb_A,
                                                                 bsr_val_A,
                                                                 bsr_row_ptr_A,
                                                                 bsr_col_ind_A,
                                                                 descr_B,
                                                                 nnzb_B,
                                                                 bsr_val_B,
                                                                 bsr_row_ptr_B,
                                                                 bsr_col_ind_B,
                                                                 beta,
                                                                 descr_D,
                                                                 nnzb_D,
                                                                 bsr_val_D,
                                                                 bsr_row_ptr_D,
                                                                 bsr_col_ind_D,
                                                                 descr_C,
                                                                 bsr_val_C,
                                                                 bsr_row_ptr_C,
                                                                 bsr_col_ind_C,
                                                                 info_C,
                                                                 temp_buffer));
        return rocsparse_status_success;
    }
    else if(info_C->csrgemm_info->mul == true && info_C->csrgemm_info->add == false)
    {
        RETURN_IF_ROCSPARSE_ERROR(rocsparse_bsrgemm_mult_core(handle,
                                                              dir,
                                                              trans_A,
                                                              trans_B,
                                                              mb,
                                                              nb,
                                                              kb,
                                                              block_dim,
                                                              alpha,
                                                              descr_A,
                                                              nnzb_A,
                                                              bsr_val_A,
                                                              bsr_row_ptr_A,
                                                              bsr_col_ind_A,
                                                              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,
                                                              info_C,
                                                              temp_buffer));
        return rocsparse_status_success;
    }
    else
    {
        // C = 0
        return rocsparse_status_success;
    }
}

template <typename I, typename J, typename T>
rocsparse_status rocsparse_bsrgemm_template(rocsparse_handle          handle,
                                            rocsparse_direction       dir,
                                            rocsparse_operation       trans_A,
                                            rocsparse_operation       trans_B,
                                            J                         mb,
                                            J                         nb,
                                            J                         kb,
                                            J                         block_dim,
                                            const T*                  alpha,
                                            const rocsparse_mat_descr descr_A,
                                            I                         nnzb_A,
                                            const T*                  bsr_val_A,
                                            const I*                  bsr_row_ptr_A,
                                            const J*                  bsr_col_ind_A,
                                            const rocsparse_mat_descr descr_B,
                                            I                         nnzb_B,
                                            const T*                  bsr_val_B,
                                            const I*                  bsr_row_ptr_B,
                                            const J*                  bsr_col_ind_B,
                                            const T*                  beta,
                                            const rocsparse_mat_descr descr_D,
                                            I                         nnzb_D,
                                            const T*                  bsr_val_D,
                                            const I*                  bsr_row_ptr_D,
                                            const J*                  bsr_col_ind_D,
                                            const rocsparse_mat_descr descr_C,
                                            T*                        bsr_val_C,
                                            const I*                  bsr_row_ptr_C,
                                            J*                        bsr_col_ind_C,
                                            const rocsparse_mat_info  info_C,
                                            void*                     temp_buffer)
{
    if(block_dim == 1)
    {
        RETURN_IF_ROCSPARSE_ERROR(rocsparse_csrgemm_template(handle,
                                                             trans_A,
                                                             trans_B,
                                                             mb,
                                                             nb,
                                                             kb,
                                                             alpha,
                                                             descr_A,
                                                             nnzb_A,
                                                             bsr_val_A,
                                                             bsr_row_ptr_A,
                                                             bsr_col_ind_A,
                                                             descr_B,
                                                             nnzb_B,
                                                             bsr_val_B,
                                                             bsr_row_ptr_B,
                                                             bsr_col_ind_B,
                                                             beta,
                                                             descr_D,
                                                             nnzb_D,
                                                             bsr_val_D,
                                                             bsr_row_ptr_D,
                                                             bsr_col_ind_D,
                                                             descr_C,
                                                             bsr_val_C,
                                                             bsr_row_ptr_C,
                                                             bsr_col_ind_C,
                                                             info_C,
                                                             temp_buffer));
        return rocsparse_status_success;
    }

    if((info_C->csrgemm_info->mul == false || kb == 0) && info_C->csrgemm_info->add == true)
    {
        RETURN_IF_ROCSPARSE_ERROR(rocsparse_bsrgemm_scal_template(handle,
                                                                  mb,
                                                                  nb,
                                                                  block_dim,
                                                                  beta,
                                                                  descr_D,
                                                                  nnzb_D,
                                                                  bsr_val_D,
                                                                  bsr_row_ptr_D,
                                                                  bsr_col_ind_D,
                                                                  descr_C,
                                                                  bsr_val_C,
                                                                  bsr_row_ptr_C,
                                                                  bsr_col_ind_C,
                                                                  info_C,
                                                                  temp_buffer));
        return rocsparse_status_success;
    }
    else if(info_C->csrgemm_info->mul == true && info_C->csrgemm_info->add == true)
    {
        RETURN_IF_ROCSPARSE_ERROR(rocsparse_bsrgemm_multadd_template(handle,
                                                                     dir,
                                                                     trans_A,
                                                                     trans_B,
                                                                     mb,
                                                                     nb,
                                                                     kb,
                                                                     block_dim,
                                                                     alpha,
                                                                     descr_A,
                                                                     nnzb_A,
                                                                     bsr_val_A,
                                                                     bsr_row_ptr_A,
                                                                     bsr_col_ind_A,
                                                                     descr_B,
                                                                     nnzb_B,
                                                                     bsr_val_B,
                                                                     bsr_row_ptr_B,
                                                                     bsr_col_ind_B,
                                                                     beta,
                                                                     descr_D,
                                                                     nnzb_D,
                                                                     bsr_val_D,
                                                                     bsr_row_ptr_D,
                                                                     bsr_col_ind_D,
                                                                     descr_C,
                                                                     bsr_val_C,
                                                                     bsr_row_ptr_C,
                                                                     bsr_col_ind_C,
                                                                     info_C,
                                                                     temp_buffer));
        return rocsparse_status_success;
    }
    else if(info_C->csrgemm_info->mul == true && info_C->csrgemm_info->add == false)
    {
        RETURN_IF_ROCSPARSE_ERROR(rocsparse_bsrgemm_mult_template(handle,
                                                                  dir,
                                                                  trans_A,
                                                                  trans_B,
                                                                  mb,
                                                                  nb,
                                                                  kb,
                                                                  block_dim,
                                                                  alpha,
                                                                  descr_A,
                                                                  nnzb_A,
                                                                  bsr_val_A,
                                                                  bsr_row_ptr_A,
                                                                  bsr_col_ind_A,
                                                                  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,
                                                                  info_C,
                                                                  temp_buffer));
        return rocsparse_status_success;
    }
    else
    {
        // C = 0
        return rocsparse_status_success;
    }
}

template <typename I, typename J, typename T>
rocsparse_status rocsparse_bsrgemm_checkarg(rocsparse_handle          handle, //0
                                            rocsparse_direction       dir, //1
                                            rocsparse_operation       trans_A, //2
                                            rocsparse_operation       trans_B, //3
                                            J                         mb, //4
                                            J                         nb, //5
                                            J                         kb, //6
                                            J                         block_dim, //7
                                            const T*                  alpha, //8
                                            const rocsparse_mat_descr descr_A, //9
                                            I                         nnzb_A, //10
                                            const T*                  bsr_val_A, //11
                                            const I*                  bsr_row_ptr_A, //12
                                            const J*                  bsr_col_ind_A, //13
                                            const rocsparse_mat_descr descr_B, //14
                                            I                         nnzb_B, //15
                                            const T*                  bsr_val_B, //16
                                            const I*                  bsr_row_ptr_B, //17
                                            const J*                  bsr_col_ind_B, //18
                                            const T*                  beta, //19
                                            const rocsparse_mat_descr descr_D, //20
                                            I                         nnzb_D, //21
                                            const T*                  bsr_val_D, //22
                                            const I*                  bsr_row_ptr_D, //23
                                            const J*                  bsr_col_ind_D, //24
                                            const rocsparse_mat_descr descr_C, //25
                                            T*                        bsr_val_C, //26
                                            const I*                  bsr_row_ptr_C, //27
                                            J*                        bsr_col_ind_C, //28
                                            const rocsparse_mat_info  info_C, //29
                                            void*                     temp_buffer) //30
{
    ROCSPARSE_CHECKARG_HANDLE(0, handle);
    ROCSPARSE_CHECKARG_POINTER(29, info_C);
    ROCSPARSE_CHECKARG_ENUM(1, dir);
    ROCSPARSE_CHECKARG_ENUM(2, trans_A);
    ROCSPARSE_CHECKARG_ENUM(3, trans_B);
    ROCSPARSE_CHECKARG_SIZE(4, mb);
    ROCSPARSE_CHECKARG_SIZE(5, nb);
    ROCSPARSE_CHECKARG_SIZE(6, kb);
    ROCSPARSE_CHECKARG_SIZE(7, block_dim);
    ROCSPARSE_CHECKARG(7, block_dim, (block_dim == 0), rocsparse_status_invalid_size);
    ROCSPARSE_CHECKARG(
        29, info_C, (info_C->csrgemm_info == nullptr), rocsparse_status_invalid_pointer);

    if(info_C->csrgemm_info->is_initialized)
    {
        ROCSPARSE_CHECKARG_ARRAY(30, info_C->csrgemm_info->buffer_size, temp_buffer);
    }
    else
    {
        ROCSPARSE_CHECKARG_POINTER(30, temp_buffer);
    }

    if((info_C->csrgemm_info->mul == false || kb == 0) && info_C->csrgemm_info->add == true)
    {
        ROCSPARSE_CHECKARG_SIZE(21, nnzb_D);
        ROCSPARSE_CHECKARG_POINTER(20, descr_D);
        ROCSPARSE_CHECKARG_POINTER(25, descr_C);
        ROCSPARSE_CHECKARG_POINTER(19, beta);
        ROCSPARSE_CHECKARG_ARRAY(22, nnzb_D, bsr_val_D);
        ROCSPARSE_CHECKARG_ARRAY(23, mb, bsr_row_ptr_D);
        ROCSPARSE_CHECKARG_ARRAY(24, nnzb_D, bsr_col_ind_D);

        ROCSPARSE_CHECKARG_ARRAY(27, mb, bsr_row_ptr_C);
        if(bsr_val_C == nullptr || bsr_col_ind_C == nullptr)
        {
            I start = 0;
            I end   = 0;

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

            const I nnzb_C = (end - start);
            ROCSPARSE_CHECKARG_ARRAY(26, nnzb_C, bsr_val_C);
            ROCSPARSE_CHECKARG_ARRAY(28, nnzb_C, bsr_col_ind_C);
        }

        ROCSPARSE_CHECKARG(20,
                           descr_D,
                           descr_D->type != rocsparse_matrix_type_general,
                           rocsparse_status_not_implemented);
        ROCSPARSE_CHECKARG(25,
                           descr_C,
                           descr_C->type != rocsparse_matrix_type_general,
                           rocsparse_status_not_implemented);

        const rocsparse_status status = rocsparse_bsrgemm_scal_quickreturn(handle,
                                                                           mb,
                                                                           nb,
                                                                           block_dim,
                                                                           beta,
                                                                           descr_D,
                                                                           nnzb_D,
                                                                           bsr_val_D,
                                                                           bsr_row_ptr_D,
                                                                           bsr_col_ind_D,
                                                                           descr_C,
                                                                           bsr_val_C,
                                                                           bsr_row_ptr_C,
                                                                           bsr_col_ind_C,
                                                                           info_C,
                                                                           temp_buffer);
        if(status != rocsparse_status_continue)
        {
            RETURN_IF_ROCSPARSE_ERROR(status);
            return rocsparse_status_success;
        }

        return rocsparse_status_continue;
    }
    else if(info_C->csrgemm_info->mul == true && info_C->csrgemm_info->add == true)
    {
        ROCSPARSE_CHECKARG_SIZE(10, nnzb_A);
        ROCSPARSE_CHECKARG_SIZE(15, nnzb_B);
        ROCSPARSE_CHECKARG_SIZE(21, nnzb_D);

        ROCSPARSE_CHECKARG_POINTER(9, descr_A);
        ROCSPARSE_CHECKARG_POINTER(14, descr_B);
        ROCSPARSE_CHECKARG_POINTER(20, descr_D);
        ROCSPARSE_CHECKARG_POINTER(25, descr_C);
        ROCSPARSE_CHECKARG_POINTER(8, alpha);
        ROCSPARSE_CHECKARG_POINTER(19, beta);
        ROCSPARSE_CHECKARG_ARRAY(12, mb, bsr_row_ptr_A);
        ROCSPARSE_CHECKARG_ARRAY(17, kb, bsr_row_ptr_B);
        ROCSPARSE_CHECKARG_ARRAY(23, mb, bsr_row_ptr_D);
        ROCSPARSE_CHECKARG_ARRAY(27, mb, bsr_row_ptr_C);

        ROCSPARSE_CHECKARG_ARRAY(11, nnzb_A, bsr_val_A);
        ROCSPARSE_CHECKARG_ARRAY(13, nnzb_A, bsr_col_ind_A);

        ROCSPARSE_CHECKARG_ARRAY(16, nnzb_B, bsr_val_B);
        ROCSPARSE_CHECKARG_ARRAY(18, nnzb_B, bsr_col_ind_B);

        ROCSPARSE_CHECKARG_ARRAY(22, nnzb_D, bsr_val_D);
        ROCSPARSE_CHECKARG_ARRAY(24, nnzb_D, bsr_col_ind_D);
        if(bsr_val_C == nullptr || bsr_col_ind_C == nullptr)
        {
            I start = 0;
            I end   = 0;

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

            const I nnzb_C = (end - start);
            ROCSPARSE_CHECKARG_ARRAY(26, nnzb_C, bsr_val_C);
            ROCSPARSE_CHECKARG_ARRAY(28, nnzb_C, bsr_col_ind_C);
        }
        ROCSPARSE_CHECKARG(9,
                           descr_A,
                           descr_A->type != rocsparse_matrix_type_general,
                           rocsparse_status_not_implemented);
        ROCSPARSE_CHECKARG(14,
                           descr_B,
                           descr_B->type != rocsparse_matrix_type_general,
                           rocsparse_status_not_implemented);
        ROCSPARSE_CHECKARG(25,
                           descr_C,
                           descr_C->type != rocsparse_matrix_type_general,
                           rocsparse_status_not_implemented);
        ROCSPARSE_CHECKARG(20,
                           descr_D,
                           descr_D->type != rocsparse_matrix_type_general,
                           rocsparse_status_not_implemented);
        const rocsparse_status status = rocsparse_bsrgemm_multadd_quickreturn(handle,
                                                                              dir,
                                                                              trans_A,
                                                                              trans_B,
                                                                              mb,
                                                                              nb,
                                                                              kb,
                                                                              block_dim,
                                                                              alpha,
                                                                              descr_A,
                                                                              nnzb_A,
                                                                              bsr_val_A,
                                                                              bsr_row_ptr_A,
                                                                              bsr_col_ind_A,
                                                                              descr_B,
                                                                              nnzb_B,
                                                                              bsr_val_B,
                                                                              bsr_row_ptr_B,
                                                                              bsr_col_ind_B,
                                                                              beta,
                                                                              descr_D,
                                                                              nnzb_D,
                                                                              bsr_val_D,
                                                                              bsr_row_ptr_D,
                                                                              bsr_col_ind_D,
                                                                              descr_C,
                                                                              bsr_val_C,
                                                                              bsr_row_ptr_C,
                                                                              bsr_col_ind_C,
                                                                              info_C,
                                                                              temp_buffer);
        if(status != rocsparse_status_continue)
        {
            RETURN_IF_ROCSPARSE_ERROR(status);
            return rocsparse_status_success;
        }

        ROCSPARSE_CHECKARG(
            2, trans_A, trans_A != rocsparse_operation_none, rocsparse_status_not_implemented);
        ROCSPARSE_CHECKARG(
            3, trans_B, trans_B != rocsparse_operation_none, rocsparse_status_not_implemented);

        if(info_C->csrgemm_info->is_initialized)
        {
            ROCSPARSE_CHECKARG_ARRAY(30, info_C->csrgemm_info->buffer_size, temp_buffer);
        }
        else
        {
            ROCSPARSE_CHECKARG_POINTER(30, temp_buffer);
        }

        return rocsparse_status_continue;
    }
    else if(info_C->csrgemm_info->mul == true && info_C->csrgemm_info->add == false)
    {

        ROCSPARSE_CHECKARG_SIZE(10, nnzb_A);
        ROCSPARSE_CHECKARG_SIZE(15, nnzb_B);

        ROCSPARSE_CHECKARG_POINTER(9, descr_A);
        ROCSPARSE_CHECKARG_POINTER(14, descr_B);
        ROCSPARSE_CHECKARG_POINTER(25, descr_C);

        ROCSPARSE_CHECKARG_POINTER(8, alpha);

        ROCSPARSE_CHECKARG_ARRAY(12, mb, bsr_row_ptr_A);
        ROCSPARSE_CHECKARG_ARRAY(17, kb, bsr_row_ptr_B);
        ROCSPARSE_CHECKARG_ARRAY(27, mb, bsr_row_ptr_C);

        ROCSPARSE_CHECKARG_ARRAY(11, nnzb_A, bsr_val_A);
        ROCSPARSE_CHECKARG_ARRAY(13, nnzb_A, bsr_col_ind_A);

        ROCSPARSE_CHECKARG_ARRAY(16, nnzb_B, bsr_val_B);
        ROCSPARSE_CHECKARG_ARRAY(18, nnzb_B, bsr_col_ind_B);

        if(bsr_val_C == nullptr || bsr_col_ind_C == nullptr)
        {
            I start = 0;
            I end   = 0;

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

            const I nnzb_C = (end - start);
            ROCSPARSE_CHECKARG_ARRAY(26, nnzb_C, bsr_val_C);
            ROCSPARSE_CHECKARG_ARRAY(28, nnzb_C, bsr_col_ind_C);
        }

        ROCSPARSE_CHECKARG(9,
                           descr_A,
                           descr_A->type != rocsparse_matrix_type_general,
                           rocsparse_status_not_implemented);
        ROCSPARSE_CHECKARG(14,
                           descr_B,
                           descr_B->type != rocsparse_matrix_type_general,
                           rocsparse_status_not_implemented);
        ROCSPARSE_CHECKARG(25,
                           descr_C,
                           descr_C->type != rocsparse_matrix_type_general,
                           rocsparse_status_not_implemented);

        const rocsparse_status status = rocsparse_bsrgemm_mult_quickreturn(handle,
                                                                           dir,
                                                                           trans_A,
                                                                           trans_B,
                                                                           mb,
                                                                           nb,
                                                                           kb,
                                                                           block_dim,
                                                                           alpha,
                                                                           descr_A,
                                                                           nnzb_A,
                                                                           bsr_val_A,
                                                                           bsr_row_ptr_A,
                                                                           bsr_col_ind_A,
                                                                           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,
                                                                           info_C,
                                                                           temp_buffer);
        if(status != rocsparse_status_continue)
        {
            RETURN_IF_ROCSPARSE_ERROR(status);
            return rocsparse_status_success;
        }

        ROCSPARSE_CHECKARG(
            2, trans_A, trans_A != rocsparse_operation_none, rocsparse_status_not_implemented);
        ROCSPARSE_CHECKARG(
            3, trans_B, trans_B != rocsparse_operation_none, rocsparse_status_not_implemented);

        return rocsparse_status_continue;
    }
    else
    {
        return rocsparse_status_continue;
    }
}

template <typename... P>
rocsparse_status rocsparse_bsrgemm_impl(P&&... p)
{
    log_trace("rocsparse_Xbsrgemm", p...);

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

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

#define INSTANTIATE(ITYPE, JTYPE, TTYPE)                                       \
    template rocsparse_status rocsparse_bsrgemm_template<ITYPE, JTYPE, TTYPE>( \
        rocsparse_handle          handle,                                      \
        rocsparse_direction       dir,                                         \
        rocsparse_operation       trans_A,                                     \
        rocsparse_operation       trans_B,                                     \
        JTYPE                     mb,                                          \
        JTYPE                     nb,                                          \
        JTYPE                     kb,                                          \
        JTYPE                     block_dim,                                   \
        const TTYPE*              alpha,                                       \
        const rocsparse_mat_descr descr_A,                                     \
        ITYPE                     nnzb_A,                                      \
        const TTYPE*              bsr_val_A,                                   \
        const ITYPE*              bsr_row_ptr_A,                               \
        const JTYPE*              bsr_col_ind_A,                               \
        const rocsparse_mat_descr descr_B,                                     \
        ITYPE                     nnzb_B,                                      \
        const TTYPE*              bsr_val_B,                                   \
        const ITYPE*              bsr_row_ptr_B,                               \
        const JTYPE*              bsr_col_ind_B,                               \
        const TTYPE*              beta,                                        \
        const rocsparse_mat_descr descr_D,                                     \
        ITYPE                     nnzb_D,                                      \
        const TTYPE*              bsr_val_D,                                   \
        const ITYPE*              bsr_row_ptr_D,                               \
        const JTYPE*              bsr_col_ind_D,                               \
        const rocsparse_mat_descr descr_C,                                     \
        TTYPE*                    bsr_val_C,                                   \
        const ITYPE*              bsr_row_ptr_C,                               \
        JTYPE*                    bsr_col_ind_C,                               \
        const rocsparse_mat_info  info_C,                                      \
        void*                     temp_buffer);

INSTANTIATE(int32_t, int32_t, float);
INSTANTIATE(int32_t, int32_t, double);
INSTANTIATE(int32_t, int32_t, rocsparse_float_complex);
INSTANTIATE(int32_t, int32_t, rocsparse_double_complex);
INSTANTIATE(int64_t, int32_t, float);
INSTANTIATE(int64_t, int32_t, double);
INSTANTIATE(int64_t, int32_t, rocsparse_float_complex);
INSTANTIATE(int64_t, int32_t, rocsparse_double_complex);
INSTANTIATE(int64_t, int64_t, float);
INSTANTIATE(int64_t, int64_t, double);
INSTANTIATE(int64_t, int64_t, rocsparse_float_complex);
INSTANTIATE(int64_t, int64_t, rocsparse_double_complex);
#undef INSTANTIATE

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

#define C_IMPL(NAME, TYPE)                                                    \
    extern "C" rocsparse_status NAME(rocsparse_handle          handle,        \
                                     rocsparse_direction       dir,           \
                                     rocsparse_operation       trans_A,       \
                                     rocsparse_operation       trans_B,       \
                                     rocsparse_int             mb,            \
                                     rocsparse_int             nb,            \
                                     rocsparse_int             kb,            \
                                     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 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 TYPE*               beta,          \
                                     const rocsparse_mat_descr descr_D,       \
                                     rocsparse_int             nnzb_D,        \
                                     const TYPE*               bsr_val_D,     \
                                     const rocsparse_int*      bsr_row_ptr_D, \
                                     const rocsparse_int*      bsr_col_ind_D, \
                                     const rocsparse_mat_descr descr_C,       \
                                     TYPE*                     bsr_val_C,     \
                                     const rocsparse_int*      bsr_row_ptr_C, \
                                     rocsparse_int*            bsr_col_ind_C, \
                                     const rocsparse_mat_info  info_C,        \
                                     void*                     temp_buffer)   \
    try                                                                       \
    {                                                                         \
        RETURN_IF_ROCSPARSE_ERROR(rocsparse_bsrgemm_impl(handle,              \
                                                         dir,                 \
                                                         trans_A,             \
                                                         trans_B,             \
                                                         mb,                  \
                                                         nb,                  \
                                                         kb,                  \
                                                         block_dim,           \
                                                         alpha,               \
                                                         descr_A,             \
                                                         nnzb_A,              \
                                                         bsr_val_A,           \
                                                         bsr_row_ptr_A,       \
                                                         bsr_col_ind_A,       \
                                                         descr_B,             \
                                                         nnzb_B,              \
                                                         bsr_val_B,           \
                                                         bsr_row_ptr_B,       \
                                                         bsr_col_ind_B,       \
                                                         beta,                \
                                                         descr_D,             \
                                                         nnzb_D,              \
                                                         bsr_val_D,           \
                                                         bsr_row_ptr_D,       \
                                                         bsr_col_ind_D,       \
                                                         descr_C,             \
                                                         bsr_val_C,           \
                                                         bsr_row_ptr_C,       \
                                                         bsr_col_ind_C,       \
                                                         info_C,              \
                                                         temp_buffer));       \
        return rocsparse_status_success;                                      \
    }                                                                         \
    catch(...)                                                                \
    {                                                                         \
        RETURN_ROCSPARSE_EXCEPTION();                                         \
    }

C_IMPL(rocsparse_sbsrgemm, float);
C_IMPL(rocsparse_dbsrgemm, double);
C_IMPL(rocsparse_cbsrgemm, rocsparse_float_complex);
C_IMPL(rocsparse_zbsrgemm, rocsparse_double_complex);
#undef C_IMPL
