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------------------------------------------------------------------------------
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-- This file is a part of the GRLIB VHDL IP LIBRARY
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-- Copyright (C) 2003 - 2008, Gaisler Research
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-- Copyright (C) 2008 - 2010, Aeroflex Gaisler
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--
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-- This program is free software; you can redistribute it and/or modify
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-- it under the terms of the GNU General Public License as published by
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-- the Free Software Foundation; either version 2 of the License, or
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-- (at your option) any later version.
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--
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-- This program is distributed in the hope that it will be useful,
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- GNU General Public License for more details.
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--
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-- You should have received a copy of the GNU General Public License
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-- along with this program; if not, write to the Free Software
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-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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-----------------------------------------------------------------------------
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-- Entity: mmuiface
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-- File: mmuiface.vhd
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-- Author: Konrad Eisele, Jiri Gaisler - Gaisler Research
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-- Description: MMU interface types
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------------------------------------------------------------------------------
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library ieee;
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use ieee.std_logic_1164.all;
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library grlib;
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use grlib.amba.all;
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use grlib.stdlib.all;
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library gaisler;
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use gaisler.mmuconfig.all;
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package mmuiface is
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type mmutlbcam_in_type is record
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mmctrl : mmctrl_type1;
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tagin : tlbcam_tfp;
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tagwrite : tlbcam_reg;
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trans_op : std_logic;
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flush_op : std_logic;
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write_op : std_logic;
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wb_op : std_logic;
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mmuen : std_logic;
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mset : std_logic;
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end record;
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type mmutlbcami_a is array (natural range <>) of mmutlbcam_in_type;
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constant mmutlbcam_in_type_none : mmutlbcam_in_type := (mmctrl_type1_none, tlbcam_tfp_none,
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tlbcam_reg_none, '0', '0', '0', '0', '0', '0');
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type mmutlbcam_out_type is record
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pteout : std_logic_vector(31 downto 0);
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LVL : std_logic_vector(1 downto 0); -- level in pth
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hit : std_logic;
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ctx : std_logic_vector(M_CTX_SZ-1 downto 0); -- for diagnostic access
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valid : std_logic; -- for diagnostic access
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vaddr : std_logic_vector(31 downto 0); -- for diagnostic access
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NEEDSYNC : std_logic;
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WBNEEDSYNC : std_logic;
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end record;
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type mmutlbcamo_a is array (natural range <>) of mmutlbcam_out_type;
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constant mmutlbcam_out_none : mmutlbcam_out_type := (zero32, "00",
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'0', "00000000", '0', zero32, '0', '0');
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-- mmu i/o
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type mmuidc_data_in_type is record
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data : std_logic_vector(31 downto 0);
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su : std_logic;
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read : std_logic;
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isid : mmu_idcache;
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wb_data : std_logic_vector(31 downto 0);
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end record;
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type mmuidc_data_out_type is record
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finish : std_logic;
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data : std_logic_vector(31 downto 0);
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cache : std_logic;
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accexc : std_logic;
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end record;
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constant mmuidco_zero : mmuidc_data_out_type := ('0', zero32, '0', '0');
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type mmudc_in_type is record
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trans_op : std_logic;
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transdata : mmuidc_data_in_type;
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-- dcache extra signals
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flush_op : std_logic;
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diag_op : std_logic;
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wb_op : std_logic;
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fsread : std_logic;
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mmctrl1 : mmctrl_type1;
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end record;
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type mmudc_out_type is record
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grant : std_logic;
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transdata : mmuidc_data_out_type;
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-- dcache extra signals
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mmctrl2 : mmctrl_type2;
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-- writebuffer out
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wbtransdata : mmuidc_data_out_type;
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tlbmiss : std_logic;
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end record;
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type mmuic_in_type is record
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trans_op : std_logic;
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transdata : mmuidc_data_in_type;
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end record;
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type mmuic_out_type is record
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grant : std_logic;
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transdata : mmuidc_data_out_type;
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tlbmiss : std_logic;
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end record;
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constant mmudco_zero : mmudc_out_type := ('0', mmuidco_zero,
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mmctrl2_zero, mmuidco_zero, '0');
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constant mmuico_zero : mmuic_out_type := ('0', mmuidco_zero, '0');
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--#lrue i/o
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type mmulrue_in_type is record
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touch : std_logic;
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pos : std_logic_vector(M_ENT_MAX_LOG-1 downto 0);
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clear : std_logic;
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flush : std_logic;
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left : std_logic_vector(M_ENT_MAX_LOG-1 downto 0);
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fromleft : std_logic;
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right : std_logic_vector(M_ENT_MAX_LOG-1 downto 0);
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fromright : std_logic;
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end record;
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type mmulruei_a is array (natural range <>) of mmulrue_in_type;
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type mmulrue_out_type is record
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pos : std_logic_vector(M_ENT_MAX_LOG-1 downto 0);
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movetop : std_logic;
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end record;
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constant mmulrue_out_none : mmulrue_out_type := (zero32(M_ENT_MAX_LOG-1 downto 0), '0');
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type mmulrueo_a is array (natural range <>) of mmulrue_out_type;
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--#lru i/o
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type mmulru_in_type is record
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touch : std_logic;
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touchmin : std_logic;
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flush : std_logic;
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pos : std_logic_vector(M_ENT_MAX_LOG-1 downto 0);
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mmctrl1 : mmctrl_type1;
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end record;
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type mmulru_out_type is record
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pos : std_logic_vector(M_ENT_MAX_LOG-1 downto 0);
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end record;
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--#mmu: tw i/o
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type memory_mm_in_type is record
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address : std_logic_vector(31 downto 0);
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data : std_logic_vector(31 downto 0);
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size : std_logic_vector(1 downto 0);
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burst : std_logic;
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read : std_logic;
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req : std_logic;
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lock : std_logic;
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end record;
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constant mci_zero : memory_mm_in_type := (X"00000000", X"00000000",
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"00", '0', '0', '0', '0');
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type memory_mm_out_type is record
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data : std_logic_vector(31 downto 0); -- memory data
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ready : std_logic; -- cycle ready
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grant : std_logic; --
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retry : std_logic; --
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mexc : std_logic; -- memory exception
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werr : std_logic; -- memory write error
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cache : std_logic; -- cacheable data
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end record;
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type mmutw_in_type is record
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walk_op_ur : std_logic;
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areq_ur : std_logic;
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tlbmiss : std_logic;
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data : std_logic_vector(31 downto 0);
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adata : std_logic_vector(31 downto 0);
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aaddr : std_logic_vector(31 downto 0);
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end record;
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type mmutwi_a is array (natural range <>) of mmutw_in_type;
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type mmutw_out_type is record
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finish : std_logic;
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data : std_logic_vector(31 downto 0);
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addr : std_logic_vector(31 downto 0);
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lvl : std_logic_vector(1 downto 0);
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fault_mexc : std_logic;
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fault_trans : std_logic;
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fault_inv : std_logic;
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fault_lvl : std_logic_vector(1 downto 0);
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end record;
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type mmutwo_a is array (natural range <>) of mmutw_out_type;
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-- mmu tlb i/o
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type mmutlb_in_type is record
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flush_op : std_logic;
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wb_op : std_logic;
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trans_op : std_logic;
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transdata : mmuidc_data_in_type;
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s2valid : std_logic;
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mmctrl1 : mmctrl_type1;
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-- fast writebuffer signals
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tlbcami : mmutlbcami_a (M_ENT_MAX-1 downto 0);
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end record;
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type mmutlbi_a is array (natural range <>) of mmutlb_in_type;
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type mmutlbfault_out_type is record
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fault_pro : std_logic;
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fault_pri : std_logic;
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fault_access : std_logic;
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fault_mexc : std_logic;
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fault_trans : std_logic;
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fault_inv : std_logic;
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fault_lvl : std_logic_vector(1 downto 0);
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fault_su : std_logic;
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fault_read : std_logic;
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fault_isid : mmu_idcache;
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fault_addr : std_logic_vector(31 downto 0);
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end record;
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type mmutlb_out_type is record
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transdata : mmuidc_data_out_type;
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fault : mmutlbfault_out_type;
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nexttrans : std_logic;
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s1finished : std_logic;
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-- fast writebuffer signals
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tlbcamo : mmutlbcamo_a (M_ENT_MAX-1 downto 0);
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-- writebuffer out
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wbtransdata : mmuidc_data_out_type;
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end record;
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type mmutlbo_a is array (natural range <>) of mmutlb_out_type;
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end;
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