FreeBSD/Linux Kernel Cross Reference
sys/contrib/ncsw/Peripherals/FM/SP/fman_sp.c

     /*
      * Copyright 2013 Freescale Semiconductor Inc.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions are met:
      *     * Redistributions of source code must retain the above copyright
      *       notice, this list of conditions and the following disclaimer.
      *     * Redistributions in binary form must reproduce the above copyright
      *       notice, this list of conditions and the following disclaimer in the
     *       documentation and/or other materials provided with the distribution.
     *     * Neither the name of Freescale Semiconductor nor the
     *       names of its contributors may be used to endorse or promote products
     *       derived from this software without specific prior written permission.
     *
     *
     * ALTERNATIVELY, this software may be distributed under the terms of the
     * GNU General Public License ("GPL") as published by the Free Software
     * Foundation, either version 2 of that License or (at your option) any
     * later version.
     *
     * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
     * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
     * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     */
    
    #include "fsl_fman_sp.h"
    
    
    uint32_t fman_vsp_get_statistics(struct fm_pcd_storage_profile_regs   *regs,
                        uint16_t                      index)
    {
        struct fm_pcd_storage_profile_regs *sp_regs;
        sp_regs = &regs[index];
        return ioread32be(&sp_regs->fm_sp_acnt);
    }
    
    void fman_vsp_set_statistics(struct fm_pcd_storage_profile_regs *regs,
                uint16_t index,     uint32_t value)
    {
        struct fm_pcd_storage_profile_regs *sp_regs;
        sp_regs = &regs[index];
        iowrite32be(value, &sp_regs->fm_sp_acnt);
    }
    
    void fman_vsp_defconfig(struct fm_storage_profile_params *cfg)
    {
        cfg->dma_swap_data =
                DEFAULT_FMAN_SP_DMA_SWAP_DATA;
        cfg->int_context_cache_attr =
                DEFAULT_FMAN_SP_DMA_INT_CONTEXT_CACHE_ATTR;
        cfg->header_cache_attr =
                DEFAULT_FMAN_SP_DMA_HEADER_CACHE_ATTR;
        cfg->scatter_gather_cache_attr =
                DEFAULT_FMAN_SP_DMA_SCATTER_GATHER_CACHE_ATTR;
        cfg->dma_write_optimize =
                DEFAULT_FMAN_SP_DMA_WRITE_OPTIMIZE;
        cfg->no_scather_gather =
                DEFAULT_FMAN_SP_NO_SCATTER_GATHER;
    }
    
    static inline uint32_t calc_vec_dep(int max_pools, bool *pools,
            struct fman_ext_pools *ext_buf_pools, uint32_t mask)
    {
        int i, j;
        uint32_t vector = 0;
        for (i = 0; i < max_pools; i++)
            if (pools[i])
                for (j = 0; j < ext_buf_pools->num_pools_used; j++)
                    if (i == ext_buf_pools->ext_buf_pool[j].id) {
                        vector |= mask >> j;
                        break;
                    }
        return vector;
    }
    
    void fman_vsp_init(struct fm_pcd_storage_profile_regs   *regs,
        uint16_t index, struct fm_storage_profile_params *fm_vsp_params,
        int port_max_num_of_ext_pools, int bm_max_num_of_pools,
        int max_num_of_pfc_priorities)
    {
        int i = 0, j = 0;
        struct fm_pcd_storage_profile_regs *sp_regs;
        uint32_t tmp_reg, vector;
        struct fman_ext_pools *ext_buf_pools = &fm_vsp_params->fm_ext_pools;
        struct fman_buf_pool_depletion *buf_pool_depletion =
                        &fm_vsp_params->buf_pool_depletion;
        struct fman_backup_bm_pools *backup_pools =
                        &fm_vsp_params->backup_pools;
        struct fman_sp_int_context_data_copy *int_context_data_copy =
                            fm_vsp_params->int_context;
        struct fman_sp_buf_margins *external_buffer_margins =
                            fm_vsp_params->buf_margins;
       bool no_scather_gather = fm_vsp_params->no_scather_gather;
       uint16_t liodn_offset = fm_vsp_params->liodn_offset;
   
       sp_regs = &regs[index];
   
       /* fill external buffers manager pool information register*/
       for (i = 0; i < ext_buf_pools->num_pools_used; i++) {
           tmp_reg = FMAN_SP_EXT_BUF_POOL_VALID |
               FMAN_SP_EXT_BUF_POOL_EN_COUNTER;
           tmp_reg |= ((uint32_t)ext_buf_pools->ext_buf_pool[i].id <<
               FMAN_SP_EXT_BUF_POOL_ID_SHIFT);
           tmp_reg |= ext_buf_pools->ext_buf_pool[i].size;
           /* functionality available only for some deriviatives
                (limited by config) */
           for (j = 0; j < backup_pools->num_backup_pools; j++)
               if (ext_buf_pools->ext_buf_pool[i].id ==
                   backup_pools->pool_ids[j]) {
                   tmp_reg |= FMAN_SP_EXT_BUF_POOL_BACKUP;
                   break;
               }
           iowrite32be(tmp_reg, &sp_regs->fm_sp_ebmpi[i]);
       }
   
       /* clear unused pools */
       for (i = ext_buf_pools->num_pools_used;
           i < port_max_num_of_ext_pools; i++)
           iowrite32be(0, &sp_regs->fm_sp_ebmpi[i]);
   
       /* fill pool depletion register*/
       tmp_reg = 0;
       if (buf_pool_depletion->buf_pool_depletion_enabled && buf_pool_depletion->pools_grp_mode_enable) {
           /* calculate vector for number of pools depletion */
           vector = calc_vec_dep(bm_max_num_of_pools, buf_pool_depletion->
                   pools_to_consider, ext_buf_pools, 0x80000000);
   
           /* configure num of pools and vector for number of pools mode */
           tmp_reg |= (((uint32_t)buf_pool_depletion->num_pools - 1) <<
               FMAN_SP_POOL_DEP_NUM_OF_POOLS_SHIFT);
           tmp_reg |= vector;
       }
   
       if (buf_pool_depletion->buf_pool_depletion_enabled && buf_pool_depletion->single_pool_mode_enable) {
           /* calculate vector for number of pools depletion */
           vector = calc_vec_dep(bm_max_num_of_pools, buf_pool_depletion->
                   pools_to_consider_for_single_mode,
                   ext_buf_pools, 0x00000080);
   
           /* configure num of pools and vector for number of pools mode */
           tmp_reg |= vector;
       }
   
       /* fill QbbPEV */
       if (buf_pool_depletion->buf_pool_depletion_enabled) {
           vector = 0;
           for (i = 0; i < max_num_of_pfc_priorities; i++)
               if (buf_pool_depletion->pfc_priorities_en[i] == TRUE)
                   vector |= 0x00000100 << i;
           tmp_reg |= vector;
       }
       iowrite32be(tmp_reg, &sp_regs->fm_sp_mpd);
   
       /* fill dma attributes register */
       tmp_reg = 0;
       tmp_reg |= (uint32_t)fm_vsp_params->dma_swap_data <<
           FMAN_SP_DMA_ATTR_SWP_SHIFT;
       tmp_reg |= (uint32_t)fm_vsp_params->int_context_cache_attr <<
           FMAN_SP_DMA_ATTR_IC_CACHE_SHIFT;
       tmp_reg |= (uint32_t)fm_vsp_params->header_cache_attr <<
           FMAN_SP_DMA_ATTR_HDR_CACHE_SHIFT;
       tmp_reg |= (uint32_t)fm_vsp_params->scatter_gather_cache_attr <<
           FMAN_SP_DMA_ATTR_SG_CACHE_SHIFT;
       if (fm_vsp_params->dma_write_optimize)
           tmp_reg |= FMAN_SP_DMA_ATTR_WRITE_OPTIMIZE;
       iowrite32be(tmp_reg, &sp_regs->fm_sp_da);
   
       /* IC parameters - fill internal context parameters register */
       tmp_reg = 0;
       tmp_reg |= (((uint32_t)int_context_data_copy->ext_buf_offset/
           OFFSET_UNITS) << FMAN_SP_IC_TO_EXT_SHIFT);
       tmp_reg |= (((uint32_t)int_context_data_copy->int_context_offset/
           OFFSET_UNITS) << FMAN_SP_IC_FROM_INT_SHIFT);
       tmp_reg |= (((uint32_t)int_context_data_copy->size/OFFSET_UNITS) <<
           FMAN_SP_IC_SIZE_SHIFT);
       iowrite32be(tmp_reg, &sp_regs->fm_sp_icp);
   
       /* buffer margins - fill external buffer margins register */
       tmp_reg = 0;
       tmp_reg |= (((uint32_t)external_buffer_margins->start_margins) <<
           FMAN_SP_EXT_BUF_MARG_START_SHIFT);
       tmp_reg |= (((uint32_t)external_buffer_margins->end_margins) <<
           FMAN_SP_EXT_BUF_MARG_END_SHIFT);
       if (no_scather_gather)
           tmp_reg |= FMAN_SP_SG_DISABLE;
       iowrite32be(tmp_reg, &sp_regs->fm_sp_ebm);
   
       /* buffer margins - fill spliodn register */
       iowrite32be(liodn_offset, &sp_regs->fm_sp_spliodn);
   }

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