leon_iface.vhd

ARM7的源代码

    Reset      : std_logic;
    fprf_dout1 : std_logic_vector(63 downto 0);
    fprf_dout2 : std_logic_vector(63 downto 0);
    RoundingMode : std_logic_vector(1 downto 0);
    ss_scan_mode : std_logic;
    fp_ctl_scan_in : std_logic;
    fpuholdn   : std_logic;
end record;

type fpu_out_type is record
    FpBusy     : std_logic;
    FracResult : std_logic_vector(54 downto 3);
    ExpResult  : std_logic_vector(10 downto 0);
    SignResult : std_logic;
    SNnotDB    : std_logic;
    Excep      : std_logic_vector(5 downto 0);
    ConditionCodes : std_logic_vector(1 downto 0);
    fp_ctl_scan_out : std_logic;
end record;

type cp_unit_in_type is record		-- coprocessor execution unit input
  op1      : std_logic_vector (63 downto 0); -- operand 1
  op2      : std_logic_vector (63 downto 0); -- operand 2
  opcode   : std_logic_vector (9 downto 0);  -- opcode
  start    : std_logic;		             -- start
  load     : std_logic;		             -- load operands
  flush    : std_logic;		             -- cancel operation
end record;

type cp_unit_out_type is record	-- coprocessor execution unit output
  res      : std_logic_vector (63 downto 0); -- result
  cc       : std_logic_vector (1 downto 0);  -- condition codes
  exc      : std_logic_vector (5 downto 0);  -- exception
  busy     : std_logic;		             -- eu busy  
end record;

-- pci_[in|out]_type groups all EXTERNAL pci ports in unidirectional form
-- as well as the required enable signals for the pads
type pci_in_type is record

  pci_rst_in_n 	   : std_logic;
  pci_gnt_in_n 	   : std_logic;
  pci_idsel_in 	   : std_logic;
 
  pci_adin 	   : std_logic_vector(31 downto 0);
  pci_cbein_n 	   : std_logic_vector(3 downto 0);
  pci_frame_in_n   : std_logic;
  pci_irdy_in_n    : std_logic;
  pci_trdy_in_n    : std_logic;
  pci_devsel_in_n  : std_logic;
  pci_stop_in_n    : std_logic;
  pci_lock_in_n    : std_logic;
  pci_perr_in_n    : std_logic;
  pci_serr_in_n    : std_logic;
  pci_par_in 	   : std_logic;
  pci_host   	   : std_logic;
  pci_66       	   : std_logic;
  pme_status   	   : std_logic;

end record;


type pci_out_type is record

  pci_aden_n 	   : std_logic_vector(31 downto 0);
  pci_cbe0_en_n    : std_logic;
  pci_cbe1_en_n    : std_logic;
  pci_cbe2_en_n    : std_logic;
  pci_cbe3_en_n    : std_logic;
  
  pci_frame_en_n   : std_logic;
  pci_irdy_en_n    : std_logic;
  pci_trdy_en_n    : std_logic;
  pci_devsel_en_n    : std_logic;
  pci_stop_en_n    : std_logic;
  pci_ctrl_en_n    : std_logic;
  pci_perr_en_n    : std_logic;
  pci_par_en_n 	   : std_logic;
  pci_req_en_n 	   : std_logic;
  pci_lock_en_n    : std_logic;
  pci_serr_en_n    : std_logic;
  pci_int_en_n     : std_logic;

  pci_req_out_n    : std_logic;
  pci_adout 	   : std_logic_vector(31 downto 0);
  pci_cbeout_n 	   : std_logic_vector(3 downto 0);
  pci_frame_out_n  : std_logic;
  pci_irdy_out_n   : std_logic;
  pci_trdy_out_n   : std_logic;
  pci_devsel_out_n : std_logic;
  pci_stop_out_n   : std_logic;
  pci_perr_out_n   : std_logic;
  pci_serr_out_n   : std_logic;
  pci_par_out 	   : std_logic;
  pci_lock_out_n   : std_logic;
  power_state  	   : std_logic_vector(1 downto 0);
  pme_enable   	   : std_logic;
  pme_clear    	   : std_logic;
  pci_int_out_n	   : std_logic;

end record;

type div_in_type is record
  op1              : std_logic_vector(32 downto 0); -- operand 1
  op2              : std_logic_vector(32 downto 0); -- operand 2
  y                : std_logic_vector(32 downto 0); -- Y (MSB divident)
  flush            : std_logic;
  signed           : std_logic;
  start            : std_logic;
end record;

type div_out_type is record
  ready           : std_logic;
  icc             : std_logic_vector(3 downto 0); -- ICC
  result          : std_logic_vector(31 downto 0); -- div result
end record;

type mul_in_type is record
  op1              : std_logic_vector(32 downto 0); -- operand 1
  op2              : std_logic_vector(32 downto 0); -- operand 2
  flush            : std_logic;
  signed           : std_logic;
  start            : std_logic;
  mac              : std_logic;
  y                : std_logic_vector(7 downto 0); -- Y (MSB MAC register)
  asr18           : std_logic_vector(31 downto 0); -- LSB MAC register
end record;

type mul_out_type is record
  ready           : std_logic;
  icc             : std_logic_vector(3 downto 0); -- ICC
  result          : std_logic_vector(63 downto 0); -- mul result
end record;

type ahb_dma_in_type is record
  address         : std_logic_vector(31 downto 0);
  wdata           : std_logic_vector(31 downto 0);
  start           : std_logic;
  burst           : std_logic;
  write           : std_logic;
  size            : std_logic_vector(1 downto 0);
end record;

type ahb_dma_out_type is record
  start           : std_logic;
  active          : std_logic;
  ready           : std_logic;
  retry           : std_logic;
  mexc            : std_logic;
  haddr           : std_logic_vector(9 downto 0);
  rdata           : std_logic_vector(31 downto 0);
end record;

type actpci_be_in_type is record
  mem_ad_int      : std_logic_vector(31 downto 0);
  mem_data        : std_logic_vector(31 downto 0);
  dp_done         : std_logic;
  dp_start        : std_logic;
  rd_be_now       : std_logic;
  rd_cyc          : std_logic;
  wr_be_now       : std_logic_vector(3 downto 0);
  wr_cyc          : std_logic;
  bar0_mem_cyc    : std_logic;
  busy            : std_logic_vector(3 downto 0);
  master_active   : std_logic;
  be_gnt          : std_logic;
end record;

type actpci_be_out_type is record
  rd_be_rdy       : std_logic;
  wr_be_rdy       : std_logic;
  error           : std_logic;
  busy            : std_logic;
  mem_data        : std_logic_vector(31 downto 0);
  cs_controln     : std_logic;
  rd_controln     : std_logic;
  wr_controln     : std_logic;
  control_add     : std_logic_vector(1 downto 0);
  ext_intn        : std_logic;
  be_req          : std_logic;
end record;

type dsu_in_type is record
  dsuen           : std_logic;
  dsubre          : std_logic;
end record;

type dsu_out_type is record
  dsuact          : std_logic;
  ntrace          : std_logic;
  freezetime      : std_logic;
  lresp           : std_logic;
  dresp           : std_logic;
  dsuen           : std_logic;
  dsubre          : std_logic;
end record;

type dcom_in_type is record
  dsurx           : std_logic;
end record;

type dcom_out_type is record
  dsutx           : std_logic;
end record;

type dsuif_in_type is record
  dsui            : dsu_in_type;
  dcomi           : dcom_in_type;
end record;

type dsuif_out_type is record
  dsuo            : dsu_out_type;
  dcomo           : dcom_out_type;
end record;

type dcom_uart_in_type is record
  rxd   	: std_logic;
  read    	: std_logic;
  write   	: std_logic;
  data		: std_logic_vector(7 downto 0);
  dsuen   	: std_logic;
end record;

type dcom_uart_out_type is record
  txd   	: std_logic;
  dready 	: std_logic;
  tsempty	: std_logic;
  thempty	: std_logic;
  lock    	: std_logic;
  enable 	: std_logic;
  data		: std_logic_vector(7 downto 0);
end record;

type tracebuf_in_type is record
  addr           : std_logic_vector(TBUFABITS downto 0);
  data           : std_logic_vector(127 downto 0);
  enable         : std_logic;
  write          : std_logic_vector(3 downto 0);
end record;

type tracebuf_out_type is record
  data          : std_logic_vector(127 downto 0);
end record;

type dsumem_in_type is record
  pbufi  : tracebuf_in_type;
  abufi  : tracebuf_in_type;
end record;

type dsumem_out_type is record
  pbufo  : tracebuf_out_type;
  abufo  : tracebuf_out_type;
end record;

type eth_in_type is record
  tx_clk : std_logic;
  rx_clk : std_logic;
  rxd    : std_logic_vector(3 downto 0);   
  rx_dv  : std_logic; 
  rx_er  : std_logic; 
  rx_col : std_logic;
  rx_crs : std_logic;
  mdio_i : std_logic; 
end record;

type eth_out_type is record
  reset   : std_logic;
  txd     : std_logic_vector(3 downto 0);   
  tx_en   : std_logic; 
  tx_er   : std_logic; 
  mdc     : std_logic;    
  mdio_o  : std_logic; 
  mdio_oe : std_logic;
end record;

type clkgen_in_type is record
  pllref  : std_logic;			-- optional reference for PLL
  pllrst  : std_logic;			-- optional reset for PLL
  pllctrl : std_logic_vector(1 downto 0);  -- optional control for PLL
end record;

type clkgen_out_type is record
  clklock : std_logic;
  pcilock : std_logic;
end record;

-- mmu i/o

type mmuidc_data_in_type is record
  data             : std_logic_vector(31 downto 0);
  su               : std_logic;
  read             : std_logic;
  isid             : mmu_idcache;
end record;

type mmuidc_data_out_type is record
  finish           : std_logic;
  data             : std_logic_vector(31 downto 0);
  cache            : std_logic;
  accexc           : std_logic;
end record;

type mmudc_in_type is record
  trans_op         : std_logic; 
  transdata        : mmuidc_data_in_type;
  
  -- dcache extra signals
  flush_op         : std_logic;
  diag_op          : std_logic;

  fsread           : std_logic;
  mmctrl1          : mmctrl_type1;
end record;

type mmudc_out_type is record
  grant            : std_logic;
  transdata        : mmuidc_data_out_type;
  -- dcache extra signals
  mmctrl2          : mmctrl_type2;
end record;

type mmuic_in_type is record
  trans_op         : std_logic; 
  transdata        : mmuidc_data_in_type;
end record;

type mmuic_out_type is record
  grant            : std_logic;
  transdata        : mmuidc_data_out_type;
end record;

type mmutlbcam_in_type is record
  tagin    : tlbcam_tfp;
  tagwrite : tlbcam_reg;
  trans_op : std_logic;
  flush_op : std_logic;
  write_op : std_logic;
  mmuen    : std_logic;
  mset     : std_logic;
end record;
type mmutlbcami_a is array (natural range <>) of mmutlbcam_in_type;

type mmutlbcam_out_type is record
  pteout   : std_logic_vector(31 downto 0);
  LVL      : std_logic_vector(1 downto 0);    -- level in pth
  hit      : std_logic;
  ctx      : std_logic_vector(M_CTX_SZ-1 downto 0);    -- for diagnostic access
  valid    : std_logic;                                -- for diagnostic access
  vaddr    : std_logic_vector(31 downto 0);            -- for diagnostic access
  NEEDSYNC : std_logic;
end record;
type mmutlbcamo_a is array (natural range <>) of mmutlbcam_out_type;

--#lrue i/o
type mmulrue_in_type is record
  touch        : std_logic;
  pos          : std_logic_vector(M_ENT_MAX_LOG-1 downto 0);
  clear        : std_logic;
  
  left         : std_logic_vector(M_ENT_MAX_LOG-1 downto 0);
  fromleft     : std_logic;
  right        : std_logic_vector(M_ENT_MAX_LOG-1 downto 0);
  fromright    : std_logic;
end record;
type mmulruei_a is array (natural range <>) of mmulrue_in_type;

type mmulrue_out_type is record
  pos          : std_logic_vector(M_ENT_MAX_LOG-1 downto 0);
  movetop      : std_logic;
end record;
type mmulrueo_a is array (natural range <>) of mmulrue_out_type;

--#lru i/o
type mmulru_in_type is record
  touch     : std_logic;
  touchmin  : std_logic;
  pos       : std_logic_vector(M_ENT_MAX_LOG-1 downto 0);
  mmctrl1   : mmctrl_type1;
end record;

type mmulru_out_type is record
  pos      : std_logic_vector(M_ENT_MAX_LOG-1 downto 0);
end record;

--#mmu: tw i/o
type memory_mm_in_type is record
  address          : std_logic_vector(31 downto 0); 
  data             : std_logic_vector(31 downto 0);
  size             : std_logic_vector(1 downto 0);
  burst            : std_logic;
  read             : std_logic;
  req              : std_logic;
  lock             : std_logic;
end record;

type memory_mm_out_type is record
  data             : std_logic_vector(31 downto 0); -- memory data
  ready            : std_logic;			    -- cycle ready
  grant            : std_logic;			    -- 
  retry            : std_logic;			    -- 
  mexc             : std_logic;			    -- memory exception
  werr             : std_logic;			    -- memory write error
  cache            : std_logic;		            -- cacheable data
end record;

type mmutw_in_type is record
  walk_op_ur       : std_logic;
  areq_ur          : std_logic;
  
  data             : std_logic_vector(31 downto 0);
  adata            : std_logic_vector(31 downto 0);
  aaddr            : std_logic_vector(31 downto 0);
end record;
type mmutwi_a is array (natural range <>) of mmutw_in_type;

type mmutw_out_type is record
  finish           : std_logic;
  data             : std_logic_vector(31 downto 0);
  addr             : std_logic_vector(31 downto 0);
  lvl              : std_logic_vector(1 downto 0);
  fault_mexc       : std_logic;
  fault_trans      : std_logic;
  fault_inv        : std_logic;
  fault_lvl        : std_logic_vector(1 downto 0);
end record;
type mmutwo_a is array (natural range <>) of mmutw_out_type;

-- mmu tlb i/o

type mmutlb_in_type is record
  flush_op    : std_logic;
  diag_op_ur  : std_logic;
  
  trans_op    : std_logic;
  transdata   : mmuidc_data_in_type;
  s2valid     : std_logic;
  
  annul       : std_logic;
  mmctrl1     : mmctrl_type1;
end record;
type mmutlbi_a is array (natural range <>) of mmutlb_in_type;

type mmutlbfault_out_type is record
  fault_pro   : std_logic;
  fault_pri   : std_logic;
  fault_access     : std_logic; 
  fault_mexc       : std_logic;
  fault_trans      : std_logic;
  fault_inv        : std_logic;
  fault_lvl        : std_logic_vector(1 downto 0);
  fault_su         : std_logic;
  fault_read       : std_logic;
  fault_isid       : mmu_idcache;
  fault_addr       : std_logic_vector(31 downto 0);
end record;
  
type mmutlb_out_type is record
  transdata   : mmuidc_data_out_type;
  fault       : mmutlbfault_out_type;
  nexttrans   : std_logic;
  s1finished  : std_logic;
end record; 
type mmutlbo_a is array (natural range <>) of mmutlb_out_type;

end;