/tmp/build_html/vhdl/mem/cache/libs/genic_lib.vhd : l8arm

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-- $(lic)
-- $(help_generic)
-- $(help_local)

library ieee;
use ieee.std_logic_1164.all;
use work.config.all;
use work.cache_config.all;
use work.int.all;
use work.gencmem_lib.all;

-- PREFIX: kicl_xxx
package genic_lib is

type gicl_ctrl is record
  burst : std_logic;
end record;

-- icache tag layout
-- addr: |         tag         | (tag)addr | line | 00 |
--                                   |
--     +-----------------------------+
--     | +---------------------+---------+
--     +>|       CLTAG         | CLVALID |
--       +---------------------+---------+

-- addr to cmem-tag fields/access layout
constant GICL_TTAG_D : integer  :=  2 + GCML_IC_TLINE_BSZ + GCML_IC_TADDR_BSZ;
constant GICL_TTAG_U : integer  := (2 + GCML_IC_TLINE_BSZ + GCML_IC_TADDR_BSZ + GCML_IC_TTAG_BSZ) -1;
constant GICL_TADDR_D : integer :=  2 + GCML_IC_TLINE_BSZ;
constant GICL_TADDR_U : integer := (2 + GCML_IC_TLINE_BSZ + GCML_IC_TADDR_BSZ) -1;
constant GICL_TLINE_D : integer :=  2;
constant GICL_TLINE_U : integer := (2 + GCML_IC_TLINE_BSZ ) -1;

-- addr to cmem-data fields/access layout
constant GICL_DADDR_D : integer :=  2 + GCML_IC_DLINE_BSZ;
constant GICL_DADDR_U : integer := (2 + GCML_IC_DLINE_BSZ + GCML_IC_DADDR_BSZ) -1;
constant GICL_DLINE_D : integer :=  2;
constant GICL_DLINE_U : integer := (2 + GCML_IC_DLINE_BSZ ) -1;

function gicl_is_taghit (
  addr : std_logic_vector(31 downto 0);
  cline : gcml_ic_tline
) return boolean;

function gicl_is_linevalid (
  addr : std_logic_vector(31 downto 0);
  cline : gcml_ic_tline
) return boolean;

-- check weather next is last of line
function gicl_is_onetogo(
  addr : std_logic_vector(31 downto 0)
) return boolean;

end genic_lib;

package body genic_lib is

function gicl_is_taghit (
  addr : std_logic_vector(31 downto 0);
  cline : gcml_ic_tline
) return boolean is
  variable tmp : boolean;
  variable tag : std_logic_vector(GICL_TTAG_U downto GICL_TTAG_D);
begin
  tmp := false;
  tag := addr(GICL_TTAG_U downto GICL_TTAG_D);
  if (tag = cline.tag) then
    tmp := true;
  end if;
  return tmp;
end;

function gicl_is_linevalid (
  addr : std_logic_vector(31 downto 0);
  cline : gcml_ic_tline
) return boolean is
  variable tmp : boolean;
  variable line : std_logic_vector(GICL_TLINE_U downto GICL_TLINE_D);
begin
  tmp := false;
  line := addr(GICL_TLINE_U downto GICL_TLINE_D);
  if (cline.valid(lin_convint(line)) = '1')
  then
    tmp := true;
  end if;
  return tmp;
end;

constant lastaddr : std_logic_vector(GCML_IC_TLINE_BSZ-1 downto 0) := (others=>'1');

function gicl_is_onetogo (
  addr : std_logic_vector(31 downto 0)
) return boolean is
  variable tmp : boolean;
begin
  tmp := false;
  if addr(GICL_TLINE_U downto GICL_TLINE_D+1) = lastaddr(GCML_IC_TLINE_BSZ-1 downto 1) then
    tmp := true;
  end if;
  return tmp;
end;

end genic_lib;

Enum rdatatype defined in /tmp/build_html/vhdl/sparc/mmu_icache.vhd

type rdatatype is (itag, idata, memory);

File /tmp/build_html/vhdl/sparc/cache.vhd

Constant words defined in /tmp/build_html/vhdl/tech/tech_axcel.vhd

constant words : integer := 2**abits;

Enum cache_replace_type defined in /tmp/build_html/vhdl/sparc/leon_target.vhd

type cache_replace_type is (lru, lrr, rnd);

Enum astates defined in /tmp/build_html/vhdl/sparc/mmu_acache.vhd

type astates is (idle, dcache, icache, mmu);

Enum cpins_type defined in /tmp/build_html/vhdl/sparc/fp1eu.vhd

type cpins_type is (none, cpop, load, store);

Enum dsnoop_type defined in /tmp/build_html/vhdl/sparc/leon_target.vhd

type dsnoop_type is (none, slow, fast);

Enum txfsmtype defined in /tmp/build_html/vhdl/sparc/dcom_uart.vhd

type txfsmtype is (idle, data, stopbit);

Enum areatype defined in /tmp/build_html/vhdl/peripherals/mem/mctrl.vhd

type areatype is (rom, io, ram);

Enum fpu_state defined in /tmp/build_html/vhdl/sparc/fpu_lth.vhd

type fpu_state is (start, get_operand, pre_norm, add_sub, post_norm,
                   rnd_norm, hold_val);

Type cache_config_type defined in /tmp/build_html/vhdl/sparc/leon_target.vhd

type cache_config_type is record
  isets         : integer range 1 to 4;   -- # of sets in icache
  isetsize	: integer;	-- I-cache size per set in Kbytes
  ilinesize	: integer;	-- # words per I-cache line
  ireplace      : cache_replace_type;         -- icache replacement algorithm
  ilock     	: integer;	-- icache locking
  dsets         : integer range 1 to 4;   -- # of sets in dcache
  dsetsize	: integer;	-- D-cache size per set in Kbytes
  dlinesize	: integer;	-- # words per D-cache line
  dreplace      : cache_replace_type;         -- icache replacement algorithm
  dlock     	: integer;	-- dcache locking
  dsnoop    	: dsnoop_type;	-- data-cache snooping
  drfast    	: boolean;	-- data-cache fast read-data generation
  dwfast    	: boolean;	-- data-cache fast write-data generation
  dlram     	: boolean;	-- local data ram enable
  dlramsize 	: integer;	-- local data ram size in kbytes
  dlramaddr 	: integer;	-- local data ram start address (8 msb)
end record;

Constant cache_config defined in /tmp/build_html/vhdl/sparc/leon_device.vhd

constant cache_config : cache_config_type := (
    isets =>

File /tmp/build_html/vhdl/mem/cache/libs/gencmem_lib.vhd
used by /tmp/build_html/vhdl/mem/cache/libs/gendc_lib.vhd
used by /tmp/build_html/vhdl/mem/cache/libs/genic_lib.vhd
used by /tmp/build_html/vhdl/mem/cache/cache_comp.vhd
used by /tmp/build_html/vhdl/mem/cache/gencmem.vhd
used by /tmp/build_html/vhdl/mem/cache/genic.vhd
used by /tmp/build_html/vhdl/mem/cache/gendc.vhd

File /tmp/build_html/vhdl/mem/cache/libs/genic_lib.vhd
used by /tmp/build_html/vhdl/mem/cache/cache_comp.vhd
used by /tmp/build_html/vhdl/mem/cache/gencmem.vhd
used by /tmp/build_html/vhdl/mem/cache/genic.vhd
used by /tmp/build_html/vhdl/mem/cache/gendc.vhd
used by /tmp/build_html/vhdl/arm/armcache.vhd
used by /tmp/build_html/vhdl/arm/tbench_armcache.vhd

Type gicl_ctrl defined in /tmp/build_html/vhdl/mem/cache/libs/genic_lib.vhd

type gicl_ctrl is record
  burst : std_logic;
end record;

Constant lin_log2 defined in /tmp/build_html/vhdl/libs/int.vhd

constant lin_log2  : lin_log2arr := (0,1,2,2,3,3,3,3,4,4,4,4,4,4,4,4,
				5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,others =>

Constant CFG_IC_TLINE_SZ defined in /tmp/build_html/vhdl/mem/cache/cache_config.vhd

constant CFG_IC_TLINE_SZ  : integer range 2 to 8  := 4;

Constant GCML_IC_TLINE_BSZ defined in /tmp/build_html/vhdl/mem/cache/libs/gencmem_lib.vhd

constant GCML_IC_TLINE_BSZ : integer := lin_log2(CFG_IC_TLINE_SZ);

Constant CFG_IC_SET_SZ defined in /tmp/build_html/vhdl/mem/cache/cache_config.vhd

constant CFG_IC_SET_SZ   : integer range 1 to 64 := 1;

Constant GCML_IC_TADDR_BSZ defined in /tmp/build_html/vhdl/mem/cache/libs/gencmem_lib.vhd

constant GCML_IC_TADDR_BSZ : integer := ((8 +lin_log2(CFG_IC_SET_SZ))-lin_log2(CFG_IC_TLINE_SZ));

Constant GICL_TTAG_D defined in /tmp/build_html/vhdl/mem/cache/libs/genic_lib.vhd

constant GICL_TTAG_D : integer  :=  2 + GCML_IC_TLINE_BSZ + GCML_IC_TADDR_BSZ;

Constant CFG_IC_ADDR_SZ defined in /tmp/build_html/vhdl/mem/cache/cache_config.vhd

constant CFG_IC_ADDR_SZ  : integer := 32;

Constant GCML_IC_TTAG_BSZ defined in /tmp/build_html/vhdl/mem/cache/libs/gencmem_lib.vhd

constant GCML_IC_TTAG_BSZ : integer := CFG_IC_ADDR_SZ - (2 + (8 +lin_log2(CFG_IC_SET_SZ)));

Constant GICL_TTAG_U defined in /tmp/build_html/vhdl/mem/cache/libs/genic_lib.vhd

constant GICL_TTAG_U : integer  := (2 + GCML_IC_TLINE_BSZ + GCML_IC_TADDR_BSZ + GCML_IC_TTAG_BSZ) -1;

Constant GICL_TADDR_D defined in /tmp/build_html/vhdl/mem/cache/libs/genic_lib.vhd

constant GICL_TADDR_D : integer :=  2 + GCML_IC_TLINE_BSZ;

Constant GICL_TADDR_U defined in /tmp/build_html/vhdl/mem/cache/libs/genic_lib.vhd

constant GICL_TADDR_U : integer := (2 + GCML_IC_TLINE_BSZ + GCML_IC_TADDR_BSZ) -1;

Constant GICL_TLINE_D defined in /tmp/build_html/vhdl/mem/cache/libs/genic_lib.vhd

constant GICL_TLINE_D : integer :=  2;

Constant GICL_TLINE_U defined in /tmp/build_html/vhdl/mem/cache/libs/genic_lib.vhd

constant GICL_TLINE_U : integer := (2 + GCML_IC_TLINE_BSZ ) -1;

Constant CFG_IC_DLINE_SZ defined in /tmp/build_html/vhdl/mem/cache/cache_config.vhd

constant CFG_IC_DLINE_SZ  : integer range 1 to 4  := 1;

Constant GCML_IC_DLINE_BSZ defined in /tmp/build_html/vhdl/mem/cache/libs/gencmem_lib.vhd

constant GCML_IC_DLINE_BSZ : integer := lin_log2(CFG_IC_DLINE_SZ);

Constant GICL_DADDR_D defined in /tmp/build_html/vhdl/mem/cache/libs/genic_lib.vhd

constant GICL_DADDR_D : integer :=  2 + GCML_IC_DLINE_BSZ;

Constant GCML_IC_DADDR_BSZ defined in /tmp/build_html/vhdl/mem/cache/libs/gencmem_lib.vhd

constant GCML_IC_DADDR_BSZ : integer := ((8 +lin_log2(CFG_IC_SET_SZ))-lin_log2(CFG_IC_DLINE_SZ));

Constant GICL_DADDR_U defined in /tmp/build_html/vhdl/mem/cache/libs/genic_lib.vhd

constant GICL_DADDR_U : integer := (2 + GCML_IC_DLINE_BSZ + GCML_IC_DADDR_BSZ) -1;

Constant GICL_DLINE_D defined in /tmp/build_html/vhdl/mem/cache/libs/genic_lib.vhd

constant GICL_DLINE_D : integer :=  2;

Constant GICL_DLINE_U defined in /tmp/build_html/vhdl/mem/cache/libs/genic_lib.vhd

constant GICL_DLINE_U : integer := (2 + GCML_IC_DLINE_BSZ ) -1;

Type gcml_ic_tline defined in /tmp/build_html/vhdl/mem/cache/libs/gencmem_lib.vhd

type gcml_ic_tline is record
  tag   : std_logic_vector(GCML_IC_TTAG_BSZ-1 downto 0);
  valid : std_logic_vector(CFG_IC_TLINE_SZ-1 downto 0);
  lock : std_logic;
end record;

Function gicl_is_linevalid defined in /tmp/build_html/vhdl/mem/cache/libs/genic_lib.vhd

function gicl_is_linevalid (
  addr : std_logic_vector(31 downto 0);
  cline : gcml_ic_tline
) return boolean is
  variable tmp : boolean;
  variable line : std_logic_vector(GICL_TLINE_U downto GICL_TLINE_D);
begin
  tmp := false;
  line := addr(GICL_TLINE_U downto GICL_TLINE_D);
  if (cline.valid(lin_convint(line)) = '1')
  then
    tmp := true;
  end if;
  return tmp;
end;

Constant lastaddr defined in /tmp/build_html/vhdl/mem/cache/libs/kecs_libicache.vhd

constant lastaddr : std_logic_vector(KCML_IC_TLINE_BSZ-1 downto 0) := (others=>

Function gicl_is_onetogo defined in /tmp/build_html/vhdl/mem/cache/libs/genic_lib.vhd

function gicl_is_onetogo (
  addr : std_logic_vector(31 downto 0)
) return boolean is
  variable tmp : boolean;
begin
  tmp := false;
  if addr(GICL_TLINE_U downto GICL_TLINE_D+1) = lastaddr(GCML_IC_TLINE_BSZ-1 downto 1) then
    tmp := true;
  end if;
  return tmp;
end;

Function gicl_is_taghit defined in /tmp/build_html/vhdl/mem/cache/libs/genic_lib.vhd

function gicl_is_taghit (
  addr : std_logic_vector(31 downto 0);
  cline : gcml_ic_tline
) return boolean;

function gicl_is_linevalid (
  addr : std_logic_vector(31 downto 0);
  cline : gcml_ic_tline
) return boolean;

-- check weather next is last of line
function gicl_is_onetogo(
  addr : std_logic_vector(31 downto 0)
) return boolean;

end genic_lib;

package body genic_lib is

function gicl_is_taghit (
  addr : std_logic_vector(31 downto 0);
  cline : gcml_ic_tline
) return boolean is
  variable tmp : boolean;
  variable tag : std_logic_vector(GICL_TTAG_U downto GICL_TTAG_D);
begin
  tmp := false;
  tag := addr(GICL_TTAG_U downto GICL_TTAG_D);
  if (tag = cline.tag) then
    tmp := true;
  end if;
  return tmp;
end;

If you have question mail to: Konrad Eisele<eiselekd@web.de>, created: Wed Apr 14 13:07:33 WEDT 2004 ;
This is part of the Core distribution