Subversion Repositories neorv32

    pmp.i_match(r) <= '1' when (pmp.region_i_addr(r)(data_width_c-1 downto pmp_g_c) = pmp.region_base(r)(data_width_c-1 downto pmp_g_c)) else '0';

    pmp.i_match(r) <= '1' when (pmp.region_i_addr(r)(data_width_c-1 downto pmp_g_c) = pmp.region_base(r)(data_width_c-1 downto pmp_g_c)) else '0';

    pmp.d_match(r) <= '1' when (pmp.region_d_addr(r)(data_width_c-1 downto pmp_g_c) = pmp.region_base(r)(data_width_c-1 downto pmp_g_c)) else '0';

    pmp.d_match(r) <= '1' when (pmp.region_d_addr(r)(data_width_c-1 downto pmp_g_c) = pmp.region_base(r)(data_width_c-1 downto pmp_g_c)) else '0';

  end generate; -- r

  end generate; -- r

  pmp_check_permission: process(pmp, pmp_ctrl_i, ctrl_i)

  pmp_check_permission: process(pmp, pmp_ctrl_i, ctrl_i)

  begin

  begin

    for r in 0 to PMP_NUM_REGIONS-1 loop -- iterate over all regions

    for r in 0 to PMP_NUM_REGIONS-1 loop -- iterate over all regions

      if ((ctrl_i(ctrl_priv_lvl_msb_c downto ctrl_priv_lvl_lsb_c) = priv_mode_u_c) or (pmp_ctrl_i(r)(pmp_cfg_l_c) = '1')) and -- user privilege level or locked pmp entry -> enforce permissions also for machine mode

      if ((ctrl_i(ctrl_priv_lvl_msb_c downto ctrl_priv_lvl_lsb_c) = priv_mode_u_c) or (pmp_ctrl_i(r)(pmp_cfg_l_c) = '1')) and -- user privilege level or locked pmp entry -> enforce permissions also for machine mode

         (pmp_ctrl_i(r)(pmp_cfg_ah_c downto pmp_cfg_al_c) /= pmp_off_mode_c) and -- active entry

         (pmp_ctrl_i(r)(pmp_cfg_ah_c downto pmp_cfg_al_c) /= pmp_off_mode_c) and -- active entry