quasar/el2_ifu_ifc_ctrl.v

295 lines
13 KiB
Verilog

module el2_ifu_ifc_ctrl(
input clock,
input reset,
input io_free_clk,
input io_active_clk,
input io_scan_mode,
input io_ic_hit_f,
input io_ifu_ic_mb_empty,
input io_ifu_fb_consume1,
input io_ifu_fb_consume2,
input io_dec_tlu_flush_noredir_wb,
input io_exu_flush_final,
input [30:0] io_exu_flush_path_final,
input io_ifu_bp_hit_taken_f,
input [30:0] io_ifu_bp_btb_target_f,
input io_ic_dma_active,
input io_ic_write_stall,
input io_dma_iccm_stall_any,
input [31:0] io_dec_tlu_mrac_ff,
output [30:0] io_ifc_fetch_addr_f,
output [30:0] io_ifc_fetch_addr_bf,
output io_ifc_fetch_req_f,
output io_ifu_pmu_fetch_stall,
output io_ifc_fetch_uncacheable_bf,
output io_ifc_fetch_req_bf,
output io_ifc_fetch_req_bf_raw,
output io_ifc_iccm_access_bf,
output io_ifc_region_acc_fault_bf,
output io_ifc_dma_access_ok
);
`ifdef RANDOMIZE_REG_INIT
reg [31:0] _RAND_0;
reg [31:0] _RAND_1;
reg [31:0] _RAND_2;
reg [31:0] _RAND_3;
reg [31:0] _RAND_4;
reg [31:0] _RAND_5;
reg [31:0] _RAND_6;
`endif // RANDOMIZE_REG_INIT
reg dma_iccm_stall_any_f; // @[el2_ifu_ifc_ctl.scala 62:58]
wire dma_stall = io_ic_dma_active | dma_iccm_stall_any_f; // @[el2_ifu_ifc_ctl.scala 61:36]
reg miss_a; // @[el2_ifu_ifc_ctl.scala 64:44]
wire _T_2 = ~io_exu_flush_final; // @[el2_ifu_ifc_ctl.scala 66:26]
wire _T_3 = ~io_ifc_fetch_req_f; // @[el2_ifu_ifc_ctl.scala 66:49]
wire _T_4 = ~io_ic_hit_f; // @[el2_ifu_ifc_ctl.scala 66:71]
wire _T_5 = _T_3 | _T_4; // @[el2_ifu_ifc_ctl.scala 66:69]
wire sel_last_addr_bf = _T_2 & _T_5; // @[el2_ifu_ifc_ctl.scala 66:46]
wire _T_7 = _T_2 & io_ifc_fetch_req_f; // @[el2_ifu_ifc_ctl.scala 67:46]
wire _T_8 = _T_7 & io_ifu_bp_hit_taken_f; // @[el2_ifu_ifc_ctl.scala 67:67]
wire sel_btb_addr_bf = _T_8 & io_ic_hit_f; // @[el2_ifu_ifc_ctl.scala 67:92]
wire _T_11 = ~io_ifu_bp_hit_taken_f; // @[el2_ifu_ifc_ctl.scala 68:69]
wire _T_12 = _T_7 & _T_11; // @[el2_ifu_ifc_ctl.scala 68:67]
wire sel_next_addr_bf = _T_12 & io_ic_hit_f; // @[el2_ifu_ifc_ctl.scala 68:92]
wire [30:0] _T_17 = io_exu_flush_final ? io_exu_flush_path_final : 31'h0; // @[Mux.scala 27:72]
wire [30:0] _T_18 = sel_last_addr_bf ? io_ifc_fetch_addr_f : 31'h0; // @[Mux.scala 27:72]
wire [30:0] _T_19 = sel_btb_addr_bf ? io_ifu_bp_btb_target_f : 31'h0; // @[Mux.scala 27:72]
wire [29:0] _T_29 = io_ifc_fetch_addr_f[30:1] + 30'h1; // @[el2_ifu_ifc_ctl.scala 80:51]
wire [30:0] _T_30 = {_T_29,1'h0}; // @[Cat.scala 29:58]
wire [31:0] fetch_addr_next = {{1'd0}, _T_30}; // @[el2_ifu_ifc_ctl.scala 80:19]
wire [31:0] _T_20 = sel_next_addr_bf ? fetch_addr_next : 32'h0; // @[Mux.scala 27:72]
wire [30:0] _T_21 = _T_17 | _T_18; // @[Mux.scala 27:72]
wire [30:0] _T_22 = _T_21 | _T_19; // @[Mux.scala 27:72]
wire [31:0] _GEN_1 = {{1'd0}, _T_22}; // @[Mux.scala 27:72]
wire [31:0] _T_23 = _GEN_1 | _T_20; // @[Mux.scala 27:72]
reg [1:0] state; // @[el2_ifu_ifc_ctl.scala 103:19]
wire idle = state == 2'h0; // @[el2_ifu_ifc_ctl.scala 122:17]
wire _T_32 = io_ifu_fb_consume2 | io_ifu_fb_consume1; // @[el2_ifu_ifc_ctl.scala 85:91]
wire _T_33 = ~_T_32; // @[el2_ifu_ifc_ctl.scala 85:70]
wire [3:0] _T_118 = io_exu_flush_final ? 4'h1 : 4'h0; // @[Mux.scala 27:72]
wire _T_78 = ~io_ifu_fb_consume2; // @[el2_ifu_ifc_ctl.scala 107:38]
wire _T_79 = io_ifu_fb_consume1 & _T_78; // @[el2_ifu_ifc_ctl.scala 107:36]
wire _T_45 = io_ifc_fetch_req_f & _T_4; // @[el2_ifu_ifc_ctl.scala 90:32]
wire miss_f = _T_45 & _T_2; // @[el2_ifu_ifc_ctl.scala 90:47]
wire _T_81 = _T_3 | miss_f; // @[el2_ifu_ifc_ctl.scala 107:81]
wire _T_82 = _T_79 & _T_81; // @[el2_ifu_ifc_ctl.scala 107:58]
wire _T_83 = io_ifu_fb_consume2 & io_ifc_fetch_req_f; // @[el2_ifu_ifc_ctl.scala 108:25]
wire fb_right = _T_82 | _T_83; // @[el2_ifu_ifc_ctl.scala 107:92]
wire _T_95 = _T_2 & fb_right; // @[el2_ifu_ifc_ctl.scala 114:16]
reg [3:0] fb_write_f; // @[el2_ifu_ifc_ctl.scala 127:24]
wire [3:0] _T_98 = {1'h0,fb_write_f[3:1]}; // @[Cat.scala 29:58]
wire [3:0] _T_119 = _T_95 ? _T_98 : 4'h0; // @[Mux.scala 27:72]
wire [3:0] _T_123 = _T_118 | _T_119; // @[Mux.scala 27:72]
wire fb_right2 = io_ifu_fb_consume2 & _T_81; // @[el2_ifu_ifc_ctl.scala 110:36]
wire _T_100 = _T_2 & fb_right2; // @[el2_ifu_ifc_ctl.scala 115:16]
wire [3:0] _T_103 = {2'h0,fb_write_f[3:2]}; // @[Cat.scala 29:58]
wire [3:0] _T_120 = _T_100 ? _T_103 : 4'h0; // @[Mux.scala 27:72]
wire [3:0] _T_124 = _T_123 | _T_120; // @[Mux.scala 27:72]
wire _T_88 = io_ifu_fb_consume1 | io_ifu_fb_consume2; // @[el2_ifu_ifc_ctl.scala 111:56]
wire _T_89 = ~_T_88; // @[el2_ifu_ifc_ctl.scala 111:35]
wire _T_90 = io_ifc_fetch_req_f & _T_89; // @[el2_ifu_ifc_ctl.scala 111:33]
wire _T_91 = ~miss_f; // @[el2_ifu_ifc_ctl.scala 111:80]
wire fb_left = _T_90 & _T_91; // @[el2_ifu_ifc_ctl.scala 111:78]
wire _T_105 = _T_2 & fb_left; // @[el2_ifu_ifc_ctl.scala 116:16]
wire [3:0] _T_108 = {fb_write_f[2:0],1'h0}; // @[Cat.scala 29:58]
wire [3:0] _T_121 = _T_105 ? _T_108 : 4'h0; // @[Mux.scala 27:72]
wire [3:0] _T_125 = _T_124 | _T_121; // @[Mux.scala 27:72]
wire _T_110 = ~fb_right; // @[el2_ifu_ifc_ctl.scala 117:18]
wire _T_111 = _T_2 & _T_110; // @[el2_ifu_ifc_ctl.scala 117:16]
wire _T_112 = ~fb_right2; // @[el2_ifu_ifc_ctl.scala 117:30]
wire _T_113 = _T_111 & _T_112; // @[el2_ifu_ifc_ctl.scala 117:28]
wire _T_114 = ~fb_left; // @[el2_ifu_ifc_ctl.scala 117:43]
wire _T_115 = _T_113 & _T_114; // @[el2_ifu_ifc_ctl.scala 117:41]
wire [3:0] _T_122 = _T_115 ? fb_write_f : 4'h0; // @[Mux.scala 27:72]
wire [3:0] fb_write_ns = _T_125 | _T_122; // @[Mux.scala 27:72]
wire fb_full_f_ns = fb_write_ns[3]; // @[el2_ifu_ifc_ctl.scala 125:30]
wire _T_34 = fb_full_f_ns & _T_33; // @[el2_ifu_ifc_ctl.scala 85:68]
wire _T_35 = ~_T_34; // @[el2_ifu_ifc_ctl.scala 85:53]
wire _T_36 = io_ifc_fetch_req_bf_raw & _T_35; // @[el2_ifu_ifc_ctl.scala 85:51]
wire _T_37 = ~dma_stall; // @[el2_ifu_ifc_ctl.scala 86:5]
wire _T_38 = _T_36 & _T_37; // @[el2_ifu_ifc_ctl.scala 85:114]
wire _T_39 = ~io_ic_write_stall; // @[el2_ifu_ifc_ctl.scala 86:18]
wire _T_40 = _T_38 & _T_39; // @[el2_ifu_ifc_ctl.scala 86:16]
wire _T_41 = ~io_dec_tlu_flush_noredir_wb; // @[el2_ifu_ifc_ctl.scala 86:39]
wire fetch_bf_en = io_exu_flush_final | io_ifc_fetch_req_f; // @[el2_ifu_ifc_ctl.scala 88:37]
wire _T_48 = io_ifu_ic_mb_empty | io_exu_flush_final; // @[el2_ifu_ifc_ctl.scala 92:39]
wire _T_50 = _T_48 & _T_37; // @[el2_ifu_ifc_ctl.scala 92:61]
wire _T_52 = _T_50 & _T_91; // @[el2_ifu_ifc_ctl.scala 92:74]
wire _T_53 = ~miss_a; // @[el2_ifu_ifc_ctl.scala 92:86]
wire mb_empty_mod = _T_52 & _T_53; // @[el2_ifu_ifc_ctl.scala 92:84]
wire goto_idle = io_exu_flush_final & io_dec_tlu_flush_noredir_wb; // @[el2_ifu_ifc_ctl.scala 94:35]
wire _T_57 = io_exu_flush_final & _T_41; // @[el2_ifu_ifc_ctl.scala 96:36]
wire leave_idle = _T_57 & idle; // @[el2_ifu_ifc_ctl.scala 96:67]
wire _T_60 = ~state[1]; // @[el2_ifu_ifc_ctl.scala 98:23]
wire _T_62 = _T_60 & state[0]; // @[el2_ifu_ifc_ctl.scala 98:33]
wire _T_63 = _T_62 & miss_f; // @[el2_ifu_ifc_ctl.scala 98:44]
wire _T_64 = ~goto_idle; // @[el2_ifu_ifc_ctl.scala 98:55]
wire _T_65 = _T_63 & _T_64; // @[el2_ifu_ifc_ctl.scala 98:53]
wire _T_67 = ~mb_empty_mod; // @[el2_ifu_ifc_ctl.scala 99:17]
wire _T_68 = state[1] & _T_67; // @[el2_ifu_ifc_ctl.scala 99:15]
wire _T_70 = _T_68 & _T_64; // @[el2_ifu_ifc_ctl.scala 99:31]
wire next_state_1 = _T_65 | _T_70; // @[el2_ifu_ifc_ctl.scala 98:67]
wire _T_72 = _T_64 & leave_idle; // @[el2_ifu_ifc_ctl.scala 101:34]
wire _T_75 = state[0] & _T_64; // @[el2_ifu_ifc_ctl.scala 101:60]
wire next_state_0 = _T_72 | _T_75; // @[el2_ifu_ifc_ctl.scala 101:48]
wire wfm = state == 2'h3; // @[el2_ifu_ifc_ctl.scala 123:16]
reg fb_full_f; // @[el2_ifu_ifc_ctl.scala 126:26]
wire _T_135 = _T_32 | io_exu_flush_final; // @[el2_ifu_ifc_ctl.scala 130:61]
wire _T_136 = ~_T_135; // @[el2_ifu_ifc_ctl.scala 130:19]
wire _T_137 = fb_full_f & _T_136; // @[el2_ifu_ifc_ctl.scala 130:17]
wire _T_138 = _T_137 | dma_stall; // @[el2_ifu_ifc_ctl.scala 130:84]
wire _T_139 = io_ifc_fetch_req_bf_raw & _T_138; // @[el2_ifu_ifc_ctl.scala 129:60]
wire [31:0] _T_141 = {io_ifc_fetch_addr_bf,1'h0}; // @[Cat.scala 29:58]
wire iccm_acc_in_region_bf = _T_141[31:28] == 4'he; // @[el2_lib.scala 211:47]
wire iccm_acc_in_range_bf = _T_141[31:16] == 16'hee00; // @[el2_lib.scala 214:29]
wire _T_144 = ~io_ifc_iccm_access_bf; // @[el2_ifu_ifc_ctl.scala 136:30]
wire _T_147 = fb_full_f & _T_33; // @[el2_ifu_ifc_ctl.scala 137:16]
wire _T_148 = _T_144 | _T_147; // @[el2_ifu_ifc_ctl.scala 136:53]
wire _T_149 = ~io_ifc_fetch_req_bf; // @[el2_ifu_ifc_ctl.scala 138:13]
wire _T_150 = wfm & _T_149; // @[el2_ifu_ifc_ctl.scala 138:11]
wire _T_151 = _T_148 | _T_150; // @[el2_ifu_ifc_ctl.scala 137:62]
wire _T_152 = _T_151 | idle; // @[el2_ifu_ifc_ctl.scala 138:35]
wire _T_154 = _T_152 & _T_2; // @[el2_ifu_ifc_ctl.scala 138:44]
wire _T_156 = ~iccm_acc_in_range_bf; // @[el2_ifu_ifc_ctl.scala 140:33]
wire [4:0] _T_159 = {io_ifc_fetch_addr_bf[30:27],1'h0}; // @[Cat.scala 29:58]
wire [31:0] _T_160 = io_dec_tlu_mrac_ff >> _T_159; // @[el2_ifu_ifc_ctl.scala 141:53]
reg _T_163; // @[el2_ifu_ifc_ctl.scala 143:32]
reg [30:0] _T_165; // @[Reg.scala 27:20]
assign io_ifc_fetch_addr_f = _T_165; // @[el2_ifu_ifc_ctl.scala 145:23]
assign io_ifc_fetch_addr_bf = _T_23[30:0]; // @[el2_ifu_ifc_ctl.scala 71:24]
assign io_ifc_fetch_req_f = _T_163; // @[el2_ifu_ifc_ctl.scala 143:22]
assign io_ifu_pmu_fetch_stall = wfm | _T_139; // @[el2_ifu_ifc_ctl.scala 129:26]
assign io_ifc_fetch_uncacheable_bf = ~_T_160[0]; // @[el2_ifu_ifc_ctl.scala 141:31]
assign io_ifc_fetch_req_bf = _T_40 & _T_41; // @[el2_ifu_ifc_ctl.scala 85:23]
assign io_ifc_fetch_req_bf_raw = ~idle; // @[el2_ifu_ifc_ctl.scala 83:27]
assign io_ifc_iccm_access_bf = _T_141[31:16] == 16'hee00; // @[el2_ifu_ifc_ctl.scala 135:25]
assign io_ifc_region_acc_fault_bf = _T_156 & iccm_acc_in_region_bf; // @[el2_ifu_ifc_ctl.scala 140:30]
assign io_ifc_dma_access_ok = _T_154 | dma_iccm_stall_any_f; // @[el2_ifu_ifc_ctl.scala 136:24]
`ifdef RANDOMIZE_GARBAGE_ASSIGN
`define RANDOMIZE
`endif
`ifdef RANDOMIZE_INVALID_ASSIGN
`define RANDOMIZE
`endif
`ifdef RANDOMIZE_REG_INIT
`define RANDOMIZE
`endif
`ifdef RANDOMIZE_MEM_INIT
`define RANDOMIZE
`endif
`ifndef RANDOM
`define RANDOM $random
`endif
`ifdef RANDOMIZE_MEM_INIT
integer initvar;
`endif
`ifndef SYNTHESIS
`ifdef FIRRTL_BEFORE_INITIAL
`FIRRTL_BEFORE_INITIAL
`endif
initial begin
`ifdef RANDOMIZE
`ifdef INIT_RANDOM
`INIT_RANDOM
`endif
`ifndef VERILATOR
`ifdef RANDOMIZE_DELAY
#`RANDOMIZE_DELAY begin end
`else
#0.002 begin end
`endif
`endif
`ifdef RANDOMIZE_REG_INIT
_RAND_0 = {1{`RANDOM}};
dma_iccm_stall_any_f = _RAND_0[0:0];
_RAND_1 = {1{`RANDOM}};
miss_a = _RAND_1[0:0];
_RAND_2 = {1{`RANDOM}};
state = _RAND_2[1:0];
_RAND_3 = {1{`RANDOM}};
fb_write_f = _RAND_3[3:0];
_RAND_4 = {1{`RANDOM}};
fb_full_f = _RAND_4[0:0];
_RAND_5 = {1{`RANDOM}};
_T_163 = _RAND_5[0:0];
_RAND_6 = {1{`RANDOM}};
_T_165 = _RAND_6[30:0];
`endif // RANDOMIZE_REG_INIT
if (reset) begin
dma_iccm_stall_any_f = 1'h0;
end
if (reset) begin
miss_a = 1'h0;
end
if (reset) begin
state = 2'h0;
end
if (reset) begin
fb_write_f = 4'h0;
end
if (reset) begin
fb_full_f = 1'h0;
end
if (reset) begin
_T_163 = 1'h0;
end
if (reset) begin
_T_165 = 31'h0;
end
`endif // RANDOMIZE
end // initial
`ifdef FIRRTL_AFTER_INITIAL
`FIRRTL_AFTER_INITIAL
`endif
`endif // SYNTHESIS
always @(posedge io_free_clk or posedge reset) begin
if (reset) begin
dma_iccm_stall_any_f <= 1'h0;
end else begin
dma_iccm_stall_any_f <= io_dma_iccm_stall_any;
end
end
always @(posedge io_free_clk or posedge reset) begin
if (reset) begin
miss_a <= 1'h0;
end else begin
miss_a <= _T_45 & _T_2;
end
end
always @(posedge clock or posedge reset) begin
if (reset) begin
state <= 2'h0;
end else begin
state <= {next_state_1,next_state_0};
end
end
always @(posedge clock or posedge reset) begin
if (reset) begin
fb_write_f <= 4'h0;
end else begin
fb_write_f <= _T_125 | _T_122;
end
end
always @(posedge clock or posedge reset) begin
if (reset) begin
fb_full_f <= 1'h0;
end else begin
fb_full_f <= fb_write_ns[3];
end
end
always @(posedge clock or posedge reset) begin
if (reset) begin
_T_163 <= 1'h0;
end else begin
_T_163 <= io_ifc_fetch_req_bf;
end
end
always @(posedge clock or posedge reset) begin
if (reset) begin
_T_165 <= 31'h0;
end else if (fetch_bf_en) begin
_T_165 <= io_ifc_fetch_addr_bf;
end
end
endmodule