1 | ---------------------------------------------------------------------------------- |
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2 | -- Company: |
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3 | -- Engineer: |
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4 | -- |
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5 | -- Create Date: 21:20:54 07/16/2012 |
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6 | -- Design Name: |
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7 | -- Module Name: PE - Behavioral |
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8 | -- Project Name: |
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9 | -- Target Devices: |
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10 | -- Tool versions: |
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11 | -- Description: |
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12 | -- |
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13 | -- Dependencies: |
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14 | -- |
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15 | -- Revision: |
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16 | -- Revision 0.01 - File Created |
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17 | -- Additional Comments: |
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18 | -- |
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19 | ---------------------------------------------------------------------------------- |
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20 | library IEEE; |
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21 | use IEEE.STD_LOGIC_1164.ALL; |
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22 | library NocLib ; |
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23 | --use IEEE.STD_LOGIC_ARITH.ALL; |
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24 | --use IEEE.STD_LOGIC_UNSIGNED.ALL; |
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25 | use NocLib.CoreTypes.all; |
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26 | use work.Packet_type.all; |
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27 | use work.MPI_RMA.all; |
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28 | use IEEE.NUMERIC_STD.ALL; |
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29 | |
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30 | |
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31 | entity PE is |
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32 | Generic (DestId : natural ); |
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33 | Port ( Instruction : out STD_LOGIC_VECTOR (Word-1 downto 0); |
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34 | Instruction_en : out STD_LOGIC; |
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35 | Core_PushOut : in STD_LOGIC_VECTOR (Word-1 downto 0); |
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36 | clk : in STD_LOGIC; |
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37 | reset : in STD_LOGIC; |
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38 | Core_RAM_Data_Out : out STD_LOGIC_VECTOR (Word-1 downto 0); |
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39 | Core_RAM_Data_In : in STD_LOGIC_VECTOR (Word-1 downto 0); |
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40 | Core_RAM_WE : in STD_LOGIC; |
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41 | Core_RAM_EN : in STD_LOGIC; |
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42 | --Core_RAM_ENB : in STD_LOGIC; |
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43 | Core_RAM_ADDRESS_WR : in STD_LOGIC_VECTOR (ADRLEN-1 downto 0); |
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44 | Core_RAM_ADDRESS_RD : in STD_LOGIC_VECTOR (ADRLEN-1 downto 0); |
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45 | Core_Hold_req : in STD_LOGIC; |
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46 | Core_Hold_Ack : out STD_LOGIC); |
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47 | end PE; |
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48 | |
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49 | architecture Behavioral of PE is |
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50 | COMPONENT RAM_v |
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51 | generic (width : positive;size :positive); |
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52 | PORT( |
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53 | clka : IN std_logic; |
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54 | clkb : IN std_logic; |
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55 | wea : IN std_logic; |
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56 | ena : IN std_logic; |
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57 | enb : IN std_logic; |
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58 | addra : IN std_logic_vector; |
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59 | addrb : IN std_logic_vector; |
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60 | dia : IN std_logic_vector; |
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61 | dob : OUT std_logic_vector |
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62 | ); |
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63 | END COMPONENT; |
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64 | --données du programme PE |
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65 | --signaux pour l'interconnexionsignal datain :std_logic_vector(word-1 downto 0):= (others => '0'); |
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66 | signal ram_we ,ram_ena,ram_enb,ramsel: std_logic:='0'; |
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67 | signal pe_ram_we ,pe_ram_ena,pe_ram_enb: std_logic; |
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68 | signal pe_instr_en,pe_hold_ack: std_logic:='0'; |
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69 | signal ram_do,ram_din:std_logic_vector(word-1 downto 0):= (others => '0'); |
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70 | signal pe_ram_do,pe_ram_din:std_logic_vector(word-1 downto 0):= (others => '0'); |
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71 | signal ram_addra,ram_addrb :std_logic_vector(ADRLEN-1 downto 0); |
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72 | signal pe_ram_addra,pe_ram_addrb :std_logic_vector(ADRLEN-1 downto 0); |
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73 | signal sram : typ_dpram; |
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74 | |
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75 | signal SrcAdr0,SrcAdr1,destAdr0,destAdr1,Datalen:std_logic_vector(word-1 downto 0); |
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76 | signal dpid,dpid_i : natural range 0 to 15:=DestId; |
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77 | signal MyRank :std_logic_vector(3 downto 0); |
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78 | signal Libr : Core_io; --regroupe tous les signaux IO de la bibliothèque |
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79 | signal Lib_Ready:std_logic; --indique que l'exécution de la fonction est terminée |
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80 | signal Lib_instr_ack : std_logic; -- l'instruction est copiée dans le tampon FIFO |
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81 | signal Lib_Init : std_logic; -- l'initialisation est terminée |
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82 | --signaux pour la gestion de la MAE |
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83 | type typ_mae is (start,Fillmem,NextFill,InitApp,InitCompleted,GetRank1,GetRank2,GetRank3,writeptr,InstrCopy, |
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84 | putdata,putdata2,putcompleted,getdata,getdata2,getcompleted,terminate,st_timeout); |
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85 | signal dcount : natural range 0 to 255:=0; --permet de compter le packet de données envoyées |
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86 | signal count,count_i : natural range 0 to 15:=0; |
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87 | |
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88 | |
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89 | signal RunState : typ_mae; |
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90 | signal Ram_busy :std_logic:='0'; |
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91 | begin |
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92 | Inst_RAM_v: RAM_v generic map(width=>word,size=>ADRLEN) |
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93 | PORT MAP( |
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94 | clka =>clk, |
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95 | clkb => clk, |
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96 | wea => ram_we, |
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97 | ena => ram_ena, |
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98 | enb => ram_enb, |
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99 | addra => ram_addra, |
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100 | addrb =>ram_addrb, |
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101 | dia => ram_din, |
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102 | dob => ram_do |
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103 | ); |
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104 | --================================================================ |
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105 | --MUX de la RAM |
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106 | |
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107 | Ram_mux: process (ramsel,pe_ram_addra,pe_ram_addrb,Core_ram_address_rd,Core_ram_address_wr, |
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108 | Core_ram_en,Core_ram_we,Core_ram_data_in,pe_ram_ena,pe_ram_enb,Ram_do, |
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109 | Pe_ram_din,Pe_ram_we ) |
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110 | begin |
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111 | case ramsel is |
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112 | |
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113 | when '1' => |
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114 | ram_addra <= Core_ram_address_wr ; |
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115 | ram_addrb <= Core_ram_address_rd ; |
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116 | ram_ena <= Core_ram_en; |
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117 | ram_enb <= Core_ram_en; |
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118 | ram_we<= Core_ram_we; |
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119 | ram_din <= Core_ram_data_in; |
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120 | pe_ram_do<=(others=>'Z'); |
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121 | Core_ram_data_out<=ram_do; |
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122 | |
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123 | when others => |
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124 | ram_addra <= pe_ram_addra; |
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125 | ram_addrb <= pe_ram_addrb; |
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126 | ram_ena <= pe_ram_ena; |
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127 | ram_enb <= pe_ram_enb; |
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128 | ram_we<= pe_ram_we; |
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129 | ram_din <=pe_ram_din; |
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130 | Core_ram_data_out<=(others=>'Z'); |
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131 | pe_ram_do<=ram_do; |
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132 | end case ; |
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133 | end process ; |
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134 | |
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135 | |
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136 | |
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137 | Instruction_En<=PE_instr_EN; -- Libr.Instr_en; --********A changer ********** |
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138 | --=== !!!!! attention la suppression de la ligne ci-dessous empêche ce |
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139 | -- composant de bien fonctionner !!! !!!!!!!!!!!!!!!!!!!!!!! |
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140 | instruction<=std_logic_vector(to_unsigned(Core_upper_adr,8)); |
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141 | |
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142 | dpid<=dpid_i; |
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143 | |
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144 | Lib_Instr_ack<=Core_Pushout(0); --l'instruction a été copié |
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145 | Lib_init<=Core_Pushout(4); -- Initialized |
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146 | -- pe_hold_req<=Core_hold_req; |
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147 | --Core_hold_ack<=pe_hold_ack; |
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148 | |
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149 | hold:process (Core_Hold_Req,clk,reset) |
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150 | begin |
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151 | if rising_edge(clk) then |
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152 | if reset='1' then |
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153 | Core_Hold_Ack<='0'; |
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154 | else |
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155 | if Core_Hold_Req='1' then |
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156 | |
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157 | ramsel<=not(ram_busy); |
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158 | Core_Hold_Ack<=not(ram_busy); --si la mémoire est occupé, forcé une libération |
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159 | Pe_hold_ack<=not(ram_busy); |
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160 | else |
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161 | Core_Hold_Ack<='0'; |
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162 | ramsel<='0'; |
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163 | Pe_hold_ack<='0'; |
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164 | |
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165 | end if; |
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166 | end if; |
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167 | end if; |
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168 | end process hold; |
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169 | --======================================================================= |
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170 | |
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171 | |
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172 | |
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173 | --======================================================================= |
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174 | --MAE du PE |
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175 | --======================================================================= |
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176 | |
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177 | pPutGet:process(clk,Core_Pushout,Core_Hold_req,PE_hold_Ack,RamSel,PE_Ram_do) |
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178 | |
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179 | constant DATAPTR : natural :=256; |
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180 | variable bfill,destrank,pid,mport : natural range 0 to 15; |
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181 | variable fsrc,ret : natural range 0 to 15:=0; |
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182 | variable timeout,ct,dlen : natural range 0 to 255; |
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183 | variable adrToset,SrcAdr,DestAdr : std_logic_vector(ADRLEN-1 downto 0); |
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184 | variable iack : std_logic:='0'; |
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185 | variable adresse,adresse_rd :natural range 0 to 65536; |
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186 | variable status_reg,config_reg :std_logic_vector(Word-1 downto 0):=(others=>'0'); |
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187 | begin |
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188 | --=== Partie combinatoire du process =================================== |
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189 | Libr.Instr_ack<=Core_pushout(0); |
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190 | Libr.InitOk<=Core_pushout(4); |
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191 | Libr.Hold_Req<=Core_Hold_req; |
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192 | Libr.Hold_Ack<=Pe_Hold_Ack; |
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193 | Libr.RamSel<=RamSel; |
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194 | sram.data_out<=PE_ram_do; |
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195 | --=== Fin de la partie combinatoire du process ========================== |
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196 | if (clk'event and clk='1') then |
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197 | if reset='1' then |
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198 | RunState<=start; |
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199 | |
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200 | else |
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201 | |
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202 | Libr.Instr_ack<=Core_pushout(0); |
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203 | Libr.InitOk<=Core_pushout(4); |
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204 | Libr.Hold_Req<=Core_Hold_req; |
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205 | Libr.Hold_Ack<=Pe_Hold_Ack; |
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206 | Libr.RamSel<=RamSel; |
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207 | sram.data_out<=PE_ram_do; |
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208 | case RunState is |
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209 | when start => |
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210 | Dcount<=0; |
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211 | if bfill=0 then -- si le nombre de bloc de mémoire remplis est vide |
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212 | RunState<=Fillmem; |
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213 | end if; |
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214 | Ram_busy<='0'; |
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215 | PE_Instr_En<='0'; |
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216 | iack:='0'; |
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217 | adresse:=DATAPTR; |
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218 | |
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219 | adresse_rd:=0; |
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220 | timeout:=0; |
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221 | dcount<=0; |
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222 | when Fillmem => |
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223 | if Ramsel='0' then |
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224 | |
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225 | |
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226 | |
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227 | PE_Ram_din<=std_logic_vector(to_unsigned(dcount,8)); -- x"0f"; |
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228 | PE_Instr_En<='0'; |
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229 | dcount<=dcount+1; |
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230 | |
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231 | if dcount=50 then |
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232 | bfill:=bfill+1; |
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233 | |
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234 | if bfill=4 then |
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235 | RunState<=InitApp; |
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236 | else |
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237 | RunState<=nextfill; |
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238 | end if; |
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239 | else |
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240 | adresse:=adresse+1; |
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241 | RunState<=Fillmem; |
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242 | end if; |
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243 | else -- attente de la libéraion de la mémoire |
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244 | timeout:=timeout+1; |
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245 | if timeout=100 then |
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246 | RunState<=st_timeout; |
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247 | end if; |
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248 | |
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249 | end if; |
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250 | when nextfill => --prépare le prochain bloc mémoire qui sera rempli |
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251 | adresse:=100*bfill; |
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252 | dcount<=0; |
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253 | ct:=0; |
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254 | RunState<=Fillmem; |
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255 | PE_Instr_En<='0'; |
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256 | when InitApp => |
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257 | --code pour Init |
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258 | |
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259 | pMPI_Init(ct,Libr,Clk,SRam); |
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260 | PE_Instr_EN<=Libr.instr_en; |
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261 | adresse:=to_integer(unsigned(sram.addr_wr)); |
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262 | adresse_rd:=to_integer(unsigned(sram.addr_rd)); |
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263 | PE_ram_din<=sram.data_in; |
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264 | |
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265 | --if Libr.InitOk='1' then |
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266 | if ct=0 then |
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267 | RunState<=GetRank1; |
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268 | end if; |
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269 | |
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270 | |
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271 | when writeptr => |
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272 | PE_Instr_En<='0'; |
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273 | if Ramsel= '0' then --s'assurer que le bus est disponible |
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274 | |
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275 | if dcount=0 then |
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276 | PE_RAM_Din<=AdrToSet(Word-1 downto 0); |
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277 | dcount <=dcount+1; |
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278 | --adresse:=adresse+1; --prépare la prochaine écriture |
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279 | elsif dcount=1 then |
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280 | dcount <=dcount+1; |
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281 | adresse:=adresse+1; --prépare la prochaine écriture |
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282 | PE_RAM_Din<=AdrToSet(15 downto 8); |
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283 | elsif dcount=2 then -- ce cycle permet juste de vider le tampon d'écriture en RAM |
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284 | ret:=fsrc; |
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285 | dcount<=0; |
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286 | timeout:=0; |
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287 | |
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288 | if fsrc=1 then |
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289 | RunState <= InitApp; |
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290 | elsif fsrc=2 then |
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291 | RunState <= putdata; |
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292 | elsif fsrc=3 then |
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293 | RunState <= getdata; |
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294 | else |
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295 | RunState <= start; |
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296 | end if; |
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297 | |
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298 | end if; |
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299 | |
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300 | end if; |
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301 | When InstrCopy => |
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302 | if Lib_instr_ack='1' then |
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303 | RunState<=Writeptr; |
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304 | PE_instr_en<='0'; |
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305 | iack:='1'; |
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306 | |
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307 | else |
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308 | PE_Instr_en<='1'; |
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309 | end if; |
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310 | |
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311 | when InitCompleted => |
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312 | adresse:=CORE_BASE_ADR; |
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313 | |
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314 | status_reg:=status_reg or x"10"; |
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315 | PE_Ram_din<=status_reg ; |
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316 | if Lib_Init='1' then |
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317 | RunState<=GetRank1; |
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318 | PE_Instr_En<='0'; |
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319 | --instruction(5)<='1'; |
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320 | else |
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321 | PE_Instr_En<='0'; |
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322 | end if; |
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323 | when GetRank1 => |
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324 | |
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325 | pMPI_Comm_rank(ct,Libr,sram,MPI_COMM_WORLD,MyRank); |
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326 | if ct=0 then |
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327 | RunState<=PutData2; |
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328 | end if; |
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329 | adresse_rd:=to_integer(unsigned(sram.addr_rd)); |
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330 | -- adresse_rd:=CORE_INIT_ADR+1; |
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331 | -- if ramsel='0' then |
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332 | -- RunState<=getrank2; |
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333 | -- end if; |
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334 | when GetRank2 => |
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335 | adresse_rd:=CORE_INIT_ADR+1; |
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336 | if ramsel='0' then |
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337 | RunState<=Getrank3; |
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338 | end if; |
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339 | when GetRank3=> |
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340 | adresse_rd:=CORE_INIT_ADR+1; |
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341 | if ramsel='0' then |
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342 | RunState<=putdata2; |
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343 | end if; |
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344 | when putdata => --construire le packet pour le Put |
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345 | if unsigned(MyRank) = 0 then |
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346 | Destrank:=1; |
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347 | else |
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348 | DestRank:=0; |
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349 | end if; |
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350 | adresse_rd:=core_base_adr+Core_Rank2port_base+DestRank; |
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351 | |
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352 | PE_Instr_En<='0'; |
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353 | timeout:=0; |
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354 | dcount<=0; |
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355 | fsrc:=2; |
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356 | adrToSet:=std_logic_vector(to_unsigned(core_put_adr,16)); |
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357 | if ret/=fsrc then |
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358 | adresse:=core_base_adr+2; |
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359 | RunState<=writeptr; |
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360 | ret:=0; |
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361 | else |
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362 | if Lib_instr_ack/='1' then |
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363 | RunState<= putdata2; |
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364 | end if; |
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365 | end if; |
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366 | |
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367 | when putdata2 => |
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368 | |
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369 | if unsigned(MyRank) = 0 then |
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370 | Destrank:=1; |
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371 | else |
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372 | DestRank:=0; |
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373 | end if; |
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374 | dlen:=10; --- to_integer(unsigned(datalen)); |
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375 | SrcAdr:=std_logic_vector(to_unsigned(DATAPTR,ADRLEN)); |
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376 | DestAdr:=X"2000"; |
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377 | |
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378 | pMPI_put(ct,Libr,Clk,Sram,SrcAdr,Dlen,MPI_int,destrank,DestAdr1 & DestAdr,Dlen,Mpi_int,Default_win); |
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379 | adresse:=to_integer(unsigned(sram.addr_wr)); |
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380 | adresse_rd:=to_integer(unsigned(sram.addr_rd)); |
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381 | PE_Instr_EN<=Libr.instr_en; |
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382 | PE_ram_din<=sram.data_in; |
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383 | dcount<=ct; |
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384 | |
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385 | if ct=0 then |
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386 | RunState<=GetData; |
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387 | end if; |
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388 | |
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389 | -- if dcount<=6 then |
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390 | -- |
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391 | -- elsif dcount=7 then |
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392 | -- |
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393 | -- PE_Instr_En<='1'; |
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394 | -- |
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395 | -- end if; |
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396 | |
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397 | -- elsif PE_instr_En='0' then |
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398 | -- timeout:=timeout+1; |
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399 | -- if timeout>=10 then -- reprendre le contrôle du Bus de force si nécessaire |
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400 | -- ram_busy<='1'; |
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401 | -- timeout:=0; |
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402 | -- PE_Instr_En<='0'; |
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403 | -- end if; |
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404 | -- end if; |
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405 | -- if dcount >=6 then |
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406 | -- Ram_busy<='0';--libérer le bus et attendre la réponse du Core MPI |
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407 | -- if Lib_instr_ack='1' then -- Instruction ack |
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408 | -- PE_Instr_En<='0'; |
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409 | -- if Ramsel='0' then |
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410 | -- adresse:=core_base_adr+1; |
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411 | -- config_reg:=config_reg and x"f6"; |
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412 | -- PE_Ram_din<=config_reg ; --ramener le IPulse à 0; |
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413 | -- Ram_busy<='0'; |
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414 | -- RunState<=putcompleted; |
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415 | -- else |
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416 | -- |
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417 | -- Ram_busy<='1'; --force la prise du bus |
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418 | -- end if; |
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419 | -- else |
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420 | -- |
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421 | -- timeout:=timeout+1; |
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422 | -- if timeout=150 then |
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423 | -- RunState<=st_timeout; |
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424 | -- end if; |
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425 | -- end if; |
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426 | -- end if; |
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427 | |
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428 | |
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429 | when putcompleted => |
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430 | adresse_rd:=core_put_adr+6; |
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431 | if PE_Ram_do(0)='1' then --Put completed |
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432 | RunState<=GetData; |
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433 | end if; |
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434 | PE_Instr_En<='0'; |
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435 | when getdata => --positionnement du mot de longueur des données |
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436 | |
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437 | --DestRank:=1; |
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438 | timeout:=0; |
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439 | dcount<=0; |
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440 | fsrc:=3; |
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441 | adrToSet:=std_logic_vector(to_unsigned(core_get_adr,16)); |
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442 | if ret/=fsrc then |
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443 | adresse:=core_base_adr+2; |
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444 | RunState<=writeptr; |
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445 | ret:=0; |
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446 | else |
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447 | adresse:=core_get_adr; |
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448 | RunState<= getdata2; |
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449 | end if; |
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450 | PE_Instr_En<='0'; |
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451 | when getdata2 => |
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452 | |
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453 | if ramsel='0' then |
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454 | if dcount<=6 then |
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455 | |
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456 | if dcount=0 then |
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457 | adresse:=core_get_adr; |
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458 | PE_Ram_din<=MPI_GET & std_logic_vector(to_unsigned(DestRank,4)); |
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459 | elsif dcount=1 then |
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460 | adresse:=core_get_adr+dcount; |
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461 | PE_Ram_din<=Datalen ; |
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462 | elsif dcount=2 then |
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463 | adresse:=core_get_adr+dcount; |
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464 | PE_Ram_din<=SrcAdr1 ; |
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465 | elsif dcount=3 then |
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466 | adresse:=core_get_adr+dcount; |
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467 | PE_Ram_din<=SrcAdr0 ; |
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468 | elsif dcount=4 then |
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469 | adresse:=core_get_adr+dcount; |
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470 | PE_Ram_din<=DestAdr1 ; |
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471 | elsif dcount=5 then |
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472 | adresse:=core_get_adr+dcount; |
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473 | PE_Ram_din<=DestAdr0 ; |
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474 | |
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475 | elsif dcount=6 then |
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476 | adresse:=core_base_adr+1; |
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477 | adresse_rd:=core_base_adr; |
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478 | PE_Instr_En<='1'; |
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479 | config_reg:=config_reg or x"01"; |
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480 | PE_Ram_din<=config_reg ; --instruction pulse enable; |
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481 | |
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482 | timeout:=0; |
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483 | end if; |
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484 | dcount<=dcount+1; |
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485 | end if; |
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486 | elsif PE_Instr_En='0'then |
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487 | timeout:=timeout+1; |
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488 | if timeout>=10 then -- reprendre le contrôle du Bus de force si nécessaire |
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489 | ram_busy<='1'; |
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490 | timeout:=0; |
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491 | PE_Instr_En<='0'; |
---|
492 | end if; |
---|
493 | end if; |
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494 | |
---|
495 | if dcount >=6 then |
---|
496 | Ram_busy<='0';--libérer le bus et attendre la réponse du Core MPI |
---|
497 | if Lib_instr_ack='1' then -- Instruction ack |
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498 | PE_Instr_En<='0'; |
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499 | if Ramsel='0' then |
---|
500 | adresse:=core_base_adr+1; |
---|
501 | config_reg:=config_reg and x"f6"; |
---|
502 | PE_Ram_din<=config_reg ; --ramener le IPulse à 0; |
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503 | |
---|
504 | Ram_busy<='0'; |
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505 | RunState<=getcompleted; |
---|
506 | else |
---|
507 | |
---|
508 | Ram_busy<='1'; --force la prise du bus |
---|
509 | end if; |
---|
510 | else |
---|
511 | |
---|
512 | timeout:=timeout+1; |
---|
513 | if timeout=150 then |
---|
514 | RunState<=st_timeout; |
---|
515 | end if; |
---|
516 | end if; |
---|
517 | |
---|
518 | |
---|
519 | end if; |
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520 | |
---|
521 | |
---|
522 | |
---|
523 | when getcompleted => |
---|
524 | adresse_rd:=core_get_adr+6; |
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525 | PE_Instr_En<='0'; |
---|
526 | if PE_Ram_do(0)='1' then --get completed |
---|
527 | if Ramsel='0' then |
---|
528 | adresse:=core_base_adr+1; |
---|
529 | config_reg:=config_reg and x"f6"; |
---|
530 | PE_Ram_din<=config_reg ; --ramener le IPulse à 0; |
---|
531 | |
---|
532 | RunState<=Terminate; |
---|
533 | else |
---|
534 | timeout:=timeout+1; |
---|
535 | end if; |
---|
536 | end if; |
---|
537 | |
---|
538 | |
---|
539 | when terminate => |
---|
540 | |
---|
541 | |
---|
542 | RunState<=start; |
---|
543 | |
---|
544 | when st_timeout => |
---|
545 | |
---|
546 | --if ram_busy='1' then |
---|
547 | RunState<=start; |
---|
548 | --end if |
---|
549 | |
---|
550 | RunState<=start; |
---|
551 | end case; |
---|
552 | pe_Ram_addra<=STD_LOGIC_VECTOR(to_unsigned(adresse,16)); |
---|
553 | pe_Ram_addrb<=STD_LOGIC_VECTOR(to_unsigned(adresse_rd,16)); |
---|
554 | end if; |
---|
555 | end if; |
---|
556 | |
---|
557 | end process pPutGet; |
---|
558 | |
---|
559 | majPutGet:process (RunState,pe_ram_do,sram,Lib_Init) |
---|
560 | |
---|
561 | begin |
---|
562 | case RunState is |
---|
563 | when start => |
---|
564 | |
---|
565 | PE_Ram_we<='0'; |
---|
566 | PE_Ram_ena<='0'; |
---|
567 | PE_Ram_enb<='0'; |
---|
568 | --PE_Instr_En<='0'; |
---|
569 | |
---|
570 | when fillmem => |
---|
571 | PE_Ram_we<='1'; |
---|
572 | PE_Ram_ena<='1'; |
---|
573 | |
---|
574 | PE_Ram_enb<='0'; |
---|
575 | --PE_Instr_En<='0'; |
---|
576 | when nextfill => |
---|
577 | PE_Ram_we<='1'; |
---|
578 | PE_Ram_ena<='1'; |
---|
579 | PE_Ram_enb<='0'; |
---|
580 | |
---|
581 | when InitApp => |
---|
582 | -- PE_Ram_we<='1'; |
---|
583 | -- PE_Ram_ena<='1'; |
---|
584 | -- PE_Ram_enb<='0'; |
---|
585 | PE_Ram_we<=sram.we; |
---|
586 | PE_Ram_ena<=sram.ena; |
---|
587 | PE_Ram_enb<=sram.enb; |
---|
588 | |
---|
589 | when Initcompleted => |
---|
590 | |
---|
591 | PE_Ram_ena<=Lib_Init; |
---|
592 | PE_Ram_we<='1'; |
---|
593 | PE_Ram_enb<='1'; |
---|
594 | |
---|
595 | when GetRank1 => |
---|
596 | -- PE_Ram_ena<='0'; |
---|
597 | -- --lecture du rang positionnement de l'adresse |
---|
598 | -- PE_Ram_enb<='1'; |
---|
599 | -- --MyRank<=PE_ram_do(3 downto 0); |
---|
600 | PE_Ram_we<=sram.we; |
---|
601 | PE_Ram_ena<=sram.ena; |
---|
602 | PE_Ram_enb<=sram.enb; |
---|
603 | when GetRank2 => |
---|
604 | PE_Ram_ena<='0'; |
---|
605 | --lecture effective du rang |
---|
606 | PE_Ram_enb<='1'; |
---|
607 | --MyRank<=PE_ram_do(3 downto 0); |
---|
608 | when GetRank3 => |
---|
609 | PE_Ram_ena<='0'; |
---|
610 | --lecture effective du rang |
---|
611 | PE_Ram_enb<='1'; |
---|
612 | --MyRank<=PE_ram_do(3 downto 0); |
---|
613 | when writeptr => |
---|
614 | PE_Ram_we <='1'; --écriture dans la RAM |
---|
615 | PE_Ram_ena <='1'; |
---|
616 | |
---|
617 | PE_Ram_enb <='0'; |
---|
618 | -- dcount<=dcount+1; |
---|
619 | |
---|
620 | --PE_Instr_En<='0'; |
---|
621 | when InstrCopy => --instruction copy |
---|
622 | PE_Ram_we<='0'; |
---|
623 | PE_Ram_ena<='0'; |
---|
624 | PE_Ram_enb<='0'; |
---|
625 | |
---|
626 | |
---|
627 | when putdata => --positionnement du mot de longueur des données |
---|
628 | --dcount<=0; |
---|
629 | srcadr0<=X"00"; |
---|
630 | srcadr1<=X"01"; |
---|
631 | destadr0<=X"00"; |
---|
632 | destadr1<=X"02"; |
---|
633 | PE_Ram_we<='0'; |
---|
634 | PE_Ram_ena<='0'; |
---|
635 | --lecture du n° de port de destination |
---|
636 | PE_Ram_enb<='1'; |
---|
637 | datalen<=std_logic_vector(to_unsigned(10,8)); |
---|
638 | dpid_i<=to_integer(unsigned(PE_ram_do(3 downto 0))); --le port est situé ur les 4 bits de poids faible |
---|
639 | --PE_Instr_En<='0'; |
---|
640 | when putdata2 => |
---|
641 | -- PE_Ram_we <='1'; --écriture dans la RAM |
---|
642 | -- PE_Ram_ena <='1'; |
---|
643 | -- PE_Ram_enb <='0'; |
---|
644 | srcadr0<=X"00"; |
---|
645 | srcadr1<=X"01"; |
---|
646 | destadr0<=X"00"; |
---|
647 | destadr1<=X"02"; |
---|
648 | PE_Ram_we<=sram.we; |
---|
649 | PE_Ram_ena<=sram.ena; |
---|
650 | PE_Ram_enb<=sram.enb; |
---|
651 | |
---|
652 | when putcompleted => |
---|
653 | PE_Ram_we <='1'; |
---|
654 | PE_Ram_ena <='1'; |
---|
655 | -- lecture du résultat |
---|
656 | PE_Ram_enb <='1'; |
---|
657 | --PE_Instr_En<='1'; |
---|
658 | when getdata => |
---|
659 | --dcount<=0; |
---|
660 | PE_Ram_we<='1'; |
---|
661 | PE_Ram_ena<='1'; |
---|
662 | PE_Ram_enb<='0'; |
---|
663 | |
---|
664 | srcadr0<=X"50"; |
---|
665 | srcadr1<=X"01"; |
---|
666 | destadr0<=X"00"; |
---|
667 | destadr1<=X"03"; |
---|
668 | datalen<=std_logic_vector(to_unsigned(10,8)); |
---|
669 | --PE_Instr_En<='0'; |
---|
670 | when getdata2 => |
---|
671 | PE_Ram_we <='1'; --écriture dans la RAM |
---|
672 | PE_Ram_ena <='1'; |
---|
673 | |
---|
674 | PE_Ram_enb <='0'; |
---|
675 | --dcount<=dcount+1; |
---|
676 | if dcount=5 then |
---|
677 | --PE_Instr_En<='1'; |
---|
678 | else |
---|
679 | --PE_Instr_En<='0'; |
---|
680 | end if; |
---|
681 | when getcompleted => |
---|
682 | PE_Ram_we <='1'; |
---|
683 | PE_Ram_ena <='1'; |
---|
684 | -- lecture du résultat |
---|
685 | PE_Ram_enb <='1'; |
---|
686 | --PE_Instr_En<='1'; |
---|
687 | when terminate => |
---|
688 | |
---|
689 | PE_Ram_we<='0'; |
---|
690 | PE_Ram_ena<='0'; |
---|
691 | PE_Ram_enb<='0'; |
---|
692 | --PE_Instr_En<='0'; |
---|
693 | |
---|
694 | when st_timeout => |
---|
695 | PE_Ram_we<='0'; |
---|
696 | PE_Ram_ena<='0'; |
---|
697 | PE_Ram_enb<='0'; |
---|
698 | --PE_Instr_En<='0'; |
---|
699 | |
---|
700 | end case; |
---|
701 | |
---|
702 | end process majPutGet ; |
---|
703 | end Behavioral; |
---|
704 | |
---|