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** the beginning of switch allocation (comb-nonspec).
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** the beginning of switch allocation (comb-nonspec).
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**
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**
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***********************************************************************/
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***********************************************************************/
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module comb_nonspec_allocator
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module comb_nonspec_allocator # (
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import pronoc_pkg::*;
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parameter NOC_ID = 0,
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#(
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parameter P = 5 //port number
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parameter P = 5 //port number
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)
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)(
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(
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//VC allocator
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//VC allocator
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//input
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//input
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dest_port_all, // from input port
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dest_port_all, // from input port
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masked_ovc_request_all,
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masked_ovc_request_all,
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pck_is_single_flit_all,
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pck_is_single_flit_all,
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clk,
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clk,
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reset
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reset
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);
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);
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`NOC_CONF
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localparam
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localparam
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P_1 = (SELF_LOOP_EN == "NO")? P-1 : P,
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P_1 = (SELF_LOOP_EN == "NO")? P-1 : P,
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PV = V * P,
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PV = V * P,
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VV = V * V,
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VV = V * V,
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VP_1 = V * P_1,
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VP_1 = V * P_1,
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output [PP_1-1 : 0] granted_dest_port_all;
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output [PP_1-1 : 0] granted_dest_port_all;
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output [PV-1 : 0] ivc_num_getting_sw_grant;
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output [PV-1 : 0] ivc_num_getting_sw_grant;
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output [P-1 : 0] any_ivc_sw_request_granted_all;
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output [P-1 : 0] any_ivc_sw_request_granted_all;
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output [P-1 : 0] any_ovc_granted_in_outport_all;
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output [P-1 : 0] any_ovc_granted_in_outport_all;
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output [PV-1 : 0] nonspec_first_arbiter_granted_ivc_all;
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output [PV-1 : 0] nonspec_first_arbiter_granted_ivc_all;
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// input [PVP_1-1 : 0] lk_destination_all;
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input clk,reset;
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input clk,reset;
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input [PV-1 : 0] vc_weight_is_consumed_all;
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input [PV-1 : 0] vc_weight_is_consumed_all;
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input [P-1 : 0] iport_weight_is_consumed_all;
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input [P-1 : 0] iport_weight_is_consumed_all;
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output [P-1 : 0] granted_dst_is_from_a_single_flit_pck;
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output [P-1 : 0] granted_dst_is_from_a_single_flit_pck;
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//internal wires switch allocator
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//internal wires switch allocator
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wire [PV-1 : 0] first_arbiter_granted_ivc_all;
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wire [PV-1 : 0] first_arbiter_granted_ivc_all;
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wire [PV-1 : 0] ivc_request_masked_all;
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wire [PV-1 : 0] ivc_request_masked_all;
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wire [P-1 : 0] any_cand_ovc_exsit;
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wire [P-1 : 0] any_cand_ovc_exsit;
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wire [PV-1 : 0] ivc_request_all;
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wire [PV-1 : 0] ivc_request_all;
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wire [PV-1 : 0] ovc_is_assigned_all;
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wire [PV-1 : 0] ovc_is_assigned_all;
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wire [PV-1 : 0] assigned_ovc_not_full_all;
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wire [PV-1 : 0] assigned_ovc_not_full_all;
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assign nonspec_first_arbiter_granted_ivc_all = first_arbiter_granted_ivc_all;
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assign nonspec_first_arbiter_granted_ivc_all = first_arbiter_granted_ivc_all;
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//nonspeculative switch allocator
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//nonspeculative switch allocator
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nonspec_sw_alloc #(
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nonspec_sw_alloc #(
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.V(V),
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.V(V),
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.P(P),
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.P(P),
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.FIRST_ARBITER_EXT_P_EN(FIRST_ARBITER_EXT_P_EN),
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.FIRST_ARBITER_EXT_P_EN(FIRST_ARBITER_EXT_P_EN),
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.any_ovc_granted_all (any_ovc_granted_in_outport_all),
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.any_ovc_granted_all (any_ovc_granted_in_outport_all),
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.vc_weight_is_consumed_all(vc_weight_is_consumed_all),
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.vc_weight_is_consumed_all(vc_weight_is_consumed_all),
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.iport_weight_is_consumed_all(iport_weight_is_consumed_all),
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.iport_weight_is_consumed_all(iport_weight_is_consumed_all),
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.clk (clk),
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.clk (clk),
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.reset (reset)
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.reset (reset)
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);
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);
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wire [PVV-1 : 0] masked_ovc_request_all;
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wire [PVV-1 : 0] masked_ovc_request_all;
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wire [V-1 : 0] masked_non_assigned_request [PV-1 : 0] ;
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wire [V-1 : 0] masked_non_assigned_request [PV-1 : 0] ;
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wire [PV-1 : 0] masked_assigned_request;
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wire [PV-1 : 0] masked_assigned_request;
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wire [PV-1 : 0] assigned_ovc_request_all ;
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wire [PV-1 : 0] assigned_ovc_request_all ;
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wire [VV-1 : 0] masked_candidate_ovc_per_port [P-1 : 0] ;
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wire [VV-1 : 0] masked_candidate_ovc_per_port [P-1 : 0] ;
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wire [V-1 : 0] vc_pririty [PV-1 : 0] ;
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wire [V-1 : 0] vc_pririty [PV-1 : 0] ;
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assign assigned_ovc_request_all = ivc_request_all & ovc_is_assigned_all;
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assign assigned_ovc_request_all = ivc_request_all & ovc_is_assigned_all;
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genvar i,j;
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genvar i,j;
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generate
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generate
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// IVC loop
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// IVC loop
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for(i=0;i< PV;i=i+1) begin :total_vc_loop
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for(i=0;i< PV;i=i+1) begin :total_vc_loop
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// mask unavailable ovc from requests
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// mask unavailable ovc from requests
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assign masked_non_assigned_request [i] = masked_ovc_request_all [(i+1)*V-1 : i*V ];
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assign masked_non_assigned_request [i] = masked_ovc_request_all [(i+1)*V-1 : i*V ];
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assign masked_assigned_request [i] = assigned_ovc_not_full_all [i] & assigned_ovc_request_all [i];
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assign masked_assigned_request [i] = assigned_ovc_not_full_all [i] & assigned_ovc_request_all [i];
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// summing assigned and non-assigned VC requests
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// summing assigned and non-assigned VC requests
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assign summ_in[i] ={masked_non_assigned_request [i],masked_assigned_request [i]};
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assign summ_in[i] ={masked_non_assigned_request [i],masked_assigned_request [i]};
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assign ivc_request_masked_all[i] = | summ_in[i];
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assign ivc_request_masked_all[i] = | summ_in[i];
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//first level arbiter to candidate only one OVC
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//first level arbiter to candidate only one OVC
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// if(VC_ARBITER_TYPE=="RRA")begin :round_robin
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// if(VC_ARBITER_TYPE=="RRA")begin :round_robin
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arbiter #(
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arbiter #(
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.ARBITER_WIDTH(V)
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.ARBITER_WIDTH(V)
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