Subversion Repositories sparc64soc

module l1dir(

   input clk,

   input reset,

   input        cpu,     // Issuing CPU number

   input        strobe,  // Start transaction

   input [ 1:0] way,     // Way to allocate for allocating loads

   input [39:0] address,

   input        load,

   input        ifill,

   input        store,

   input        cas,

   input        swap,

   input        strload,

   input        strstore,

   input        cacheable,

   input        prefetch,

   input        invalidate,

   input        blockstore,

   output [111:0] inval_vect0,    // Invalidation vector

   output [111:0] inval_vect1,

   output [  1:0] othercachehit, // Other cache hit in the same CPU, wayval0/wayval1

   output [  1:0] othercpuhit,   // Any cache hit in the other CPU, wayval0/wayval1

   output [  1:0] wayval0,       // Way valid

   output [  1:0] wayval1,       // Second way valid for ifill

   output         ready         // Directory init done   

);

wire [3:0] rdy;

wire dquery0=(!cpu) && store && (!blockstore);

wire dquery1=  cpu  && store && (!blockstore);

wire dalloc0=(!cpu) && cacheable && (!invalidate) && load && (!prefetch);

wire dalloc1=  cpu  && cacheable && (!invalidate) && load && (!prefetch);

wire ddealloc0=((!cpu) && ((ifill && (!prefetch) && (!invalidate)) || cas || swap || strstore || (store && blockstore))) ||

               (  cpu  && ((load && cacheable && (!prefetch) && (!invalidate)) || (ifill && (!prefetch) && (!invalidate)) || store || cas || swap || strload || strstore));

wire ddealloc1=(  cpu  && ((ifill && (!prefetch) && (!invalidate)) || cas || swap || strstore || (store && blockstore))) ||

               ((!cpu) && ((load && cacheable && (!prefetch) && (!invalidate)) || (ifill && (!prefetch) && (!invalidate)) || store || cas || swap || strload || strstore));

wire iquery0=0;

wire iquery1=0;

wire ialloc0=(!cpu) && cacheable && (!invalidate) && ifill;

wire ialloc1=  cpu  && cacheable && (!invalidate) && ifill;

wire idealloc0=((!cpu) && ((load && cacheable && (!prefetch) && (!invalidate))          || store || cas || swap || strstore)) ||

               (  cpu  && ((load && cacheable && (!prefetch) && (!invalidate)) || (ifill && (!prefetch) && (!invalidate)) || store || cas || swap || strload || strstore));

wire idealloc1=(  cpu  && ((load && cacheable && (!prefetch) && (!invalidate))          || store || cas || swap || strstore )) ||

               ((!cpu) && ((load && cacheable && (!prefetch) && (!invalidate)) || (ifill && (!prefetch) && (!invalidate)) || store || cas || swap || strload || strstore));

wire [2:0] cpu0_dhit0;

wire [2:0] cpu0_dhit1;

wire [2:0] cpu1_dhit0;

wire [2:0] cpu1_dhit1;

wire [2:0] cpu0_ihit;

wire [2:0] cpu1_ihit;

wire invalidate_d=invalidate && load;

wire invalidate_i=invalidate && ifill;

reg        ifill_d;

reg        load_d;

reg        cacheable_d;

reg        cpu_d;

reg [39:0] address_d;

reg        strobe_d;

reg        strobe_d1;

reg        strobe_d2;

always @(posedge clk)

   begin

      strobe_d<=strobe;

      strobe_d1<=strobe_d;

      strobe_d2<=strobe_d1;

   end

always @(posedge clk)

   if(strobe)

      begin

         ifill_d<=ifill;

         load_d<=load;

         cacheable_d<=cacheable;

         cpu_d<=cpu;

         address_d<=address;

      end

l1ddir cpu0_ddir(

   .clk(clk),

   .reset(reset),

   .index(address[10:4]),

   .way(way),

   .tag(address[39:11]),

        .strobe(strobe),

   .query(dquery0),

   .allocate(dalloc0),

   .deallocate(ddealloc0),

   .dualdealloc(ifill),

   .invalidate(invalidate_d && !cpu),

   .hit0(cpu0_dhit0),

   .hit1(cpu0_dhit1),

   .ready(rdy[0])

);

l1ddir cpu1_ddir(

   .clk(clk),

   .reset(reset),

   .index(address[10:4]),

   .way(way),

   .tag(address[39:11]),

        .strobe(strobe),

   .query(dquery1),

   .allocate(dalloc1),

   .deallocate(ddealloc1),

   .dualdealloc(ifill),

   .invalidate(invalidate_d && cpu),

   .hit0(cpu1_dhit0),

   .hit1(cpu1_dhit1),

   .ready(rdy[1])

);

l1idir cpu0_idir(

   .clk(clk),

   .reset(reset),

   .index(address[11:5]),

   .way(way),

   .tag(address[39:12]),

        .strobe(strobe),

   .query(iquery0),

   .allocate(ialloc0),

   .deallocate(idealloc0),

   .invalidate(invalidate_i && !cpu),

   .hit(cpu0_ihit),

   .ready(rdy[2])

);

l1idir cpu1_idir(

   .clk(clk),

   .reset(reset),

   .index(address[11:5]),

   .way(way),

   .tag(address[39:12]),

        .strobe(strobe),

   .query(iquery1),

   .allocate(ialloc1),

   .deallocate(idealloc1),

   .invalidate(invalidate_i && cpu),

   .hit(cpu1_ihit),

   .ready(rdy[3])

);

assign ready=(!rdy[0] | !rdy[1] | !rdy[2] | !rdy[3]) ? 0:1;

assign inval_vect0[3:0]={wayval0,cpu0_ihit[2] && (!address_d[5]),cpu0_dhit0[2] && (address_d[5:4]==2'b00)};

assign inval_vect0[7:4]={wayval0,cpu1_ihit[2] && (!address_d[5]),cpu1_dhit0[2] && (address_d[5:4]==2'b00)};

assign inval_vect0[31:8]=0;

assign inval_vect0[34:32]={wayval0,cpu0_dhit0[2] && (address_d[5:4]==2'b01)};

assign inval_vect0[37:35]={wayval0,cpu1_dhit0[2] && (address_d[5:4]==2'b01)};

assign inval_vect0[55:38]=0;

assign inval_vect0[59:56]={wayval0,cpu0_ihit[2] && address_d[5],cpu0_dhit0[2] && (address_d[5:4]==2'b10)};

assign inval_vect0[63:60]={wayval0,cpu1_ihit[2] && address_d[5],cpu1_dhit0[2] && (address_d[5:4]==2'b10)};

assign inval_vect0[87:64]=0;

assign inval_vect0[90:88]={wayval0,cpu0_dhit0[2] && (address_d[5:4]==2'b11)};

assign inval_vect0[93:91]={wayval0,cpu1_dhit0[2] && (address_d[5:4]==2'b11)};

assign inval_vect0[111:94]=0;

assign inval_vect1[3:0]={wayval1,cpu0_dhit1[2] && (address_d[5:4]==2'b00)};

assign inval_vect1[7:4]={wayval1,cpu1_dhit1[2] && (address_d[5:4]==2'b00)};

assign inval_vect1[31:8]=0;

assign inval_vect1[34:32]={wayval1,cpu0_dhit1[2] && (address_d[5:4]==2'b01)};

assign inval_vect1[37:35]={wayval1,cpu1_dhit1[2] && (address_d[5:4]==2'b01)};

assign inval_vect1[55:38]=0;

assign inval_vect1[59:56]={wayval1,cpu0_dhit1[2] && (address_d[5:4]==2'b10)};

assign inval_vect1[63:60]={wayval1,cpu1_dhit1[2] && (address_d[5:4]==2'b10)};

assign inval_vect1[87:64]=0;

assign inval_vect1[90:88]={wayval1,cpu0_dhit1[2] && (address_d[5:4]==2'b11)};

assign inval_vect1[93:91]={wayval1,cpu1_dhit1[2] && (address_d[5:4]==2'b11)};

assign inval_vect1[111:94]=0;

assign wayval0=cpu0_dhit0[1:0] | cpu1_dhit0[1:0] | cpu0_ihit[1:0] | cpu1_ihit[1:0];

assign wayval1=cpu0_dhit1[1:0] | cpu1_dhit1[1:0];

assign othercachehit[0]=((!cpu_d) && ifill_d && cpu0_dhit0[2]) ||

                        (  cpu_d  && ifill_d && cpu1_dhit0[2]) ||

                        ((!cpu_d) && load_d && cacheable_d && cpu0_ihit[2]) ||

                        (  cpu_d  && load_d && cacheable_d && cpu1_ihit[2]);

assign othercachehit[1]=((!cpu_d) && ifill_d && cpu0_dhit1[2]) ||

                        (  cpu_d  && ifill_d && cpu1_dhit1[2]);

assign othercpuhit[0]=((!cpu_d) && (cpu1_dhit0[2] || cpu1_ihit[2])) ||

                      (  cpu_d  && (cpu0_dhit0[2] || cpu0_ihit[2]));

assign othercpuhit[1]=((!cpu_d) && ifill_d && cpu1_dhit1[2]) ||

                      (  cpu_d  && ifill_d && cpu0_dhit1[2]);

wire [149:0] ILA_DATA;

st2 st2_inst(

        .acq_clk(clk),

        .acq_data_in(ILA_DATA),

        .acq_trigger_in(ILA_DATA),

        .storage_enable(strobe || strobe_d || strobe_d1 || strobe_d2)

);

assign ILA_DATA[39:0]=address;

assign ILA_DATA[41:40]=way;

assign ILA_DATA[42]=strobe;

assign ILA_DATA[43]=load;

assign ILA_DATA[44]=ifill;

assign ILA_DATA[45]=store;

assign ILA_DATA[46]=cas;

assign ILA_DATA[47]=swap;

assign ILA_DATA[48]=strload;

assign ILA_DATA[49]=strstore;

assign ILA_DATA[50]=cacheable;

assign ILA_DATA[51]=prefetch;

assign ILA_DATA[52]=invalidate;

assign ILA_DATA[53]=blockstore;

assign ILA_DATA[55:54]=othercachehit;

assign ILA_DATA[57:56]=othercpuhit;

assign ILA_DATA[59:58]=wayval0;

assign ILA_DATA[61:60]=wayval1;

assign ILA_DATA[69:62]=inval_vect0[7:0];

assign ILA_DATA[75:70]=inval_vect0[37:32];

assign ILA_DATA[83:76]=inval_vect0[63:56];

assign ILA_DATA[89:84]=inval_vect0[93:88];

assign ILA_DATA[97:90]=inval_vect1[7:0];

assign ILA_DATA[103:98]=inval_vect1[37:32];

assign ILA_DATA[111:104]=inval_vect1[63:56];

assign ILA_DATA[117:112]=inval_vect1[93:88];

assign ILA_DATA[118]=dquery0;

assign ILA_DATA[119]=dquery1;

assign ILA_DATA[120]=dalloc0;

assign ILA_DATA[121]=dalloc1;

assign ILA_DATA[122]=ddealloc0;

assign ILA_DATA[123]=ddealloc1;

assign ILA_DATA[124]=iquery0;

assign ILA_DATA[125]=iquery1;

assign ILA_DATA[126]=ialloc0;

assign ILA_DATA[127]=ialloc1;

assign ILA_DATA[128]=idealloc0;

assign ILA_DATA[129]=idealloc1;

endmodule