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sync rf, x0 fix

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This commit is contained in:
Richard Yan
2024-09-05 16:49:01 -07:00
parent 2b1a9b7c16
commit 3f8c28c7d6
6 changed files with 203 additions and 138 deletions
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15
hw/rtl/core/VX_operands.sv
View File

@@ -53,7 +53,7 @@ module VX_operands import VX_gpu_pkg::*; #(
reg [`NUM_THREADS-1:0][`XLEN-1:0] rs2_data, rs2_data_n;
reg [`NUM_THREADS-1:0][`XLEN-1:0] rs3_data, rs3_data_n;
reg [STATE_BITS-1:0] state, state_n;
reg [STATE_BITS-1:0] state, state_n, state_p;
reg [`NR_BITS-1:0] rs2, rs2_n;
reg [`NR_BITS-1:0] rs3, rs3_n;
reg rs2_ready, rs2_ready_n;
@@ -175,10 +175,12 @@ module VX_operands import VX_gpu_pkg::*; #(
always @(posedge clk) begin
if (reset) begin
state <= STATE_IDLE;
state_p <= STATE_IDLE;
cache_eop <= {ISSUE_RATIO{1'b1}};
data_ready <= 0;
end else begin
state <= state_n;
state_p <= state;
cache_eop <= cache_eop_n;
data_ready <= data_ready_n;
end
@@ -190,7 +192,7 @@ module VX_operands import VX_gpu_pkg::*; #(
rs3 <= rs3_n;
rs1_data <= rs1_data_n;
rs2_data <= rs2_data_n;
rs3_data <= rs3_data_n;
rs3_data <= rs3_data_n;
cache_data <= cache_data_n;
cache_reg <= cache_reg_n;
cache_tmask <= cache_tmask_n;
@@ -242,9 +244,9 @@ module VX_operands import VX_gpu_pkg::*; #(
.ready_out (operands_if[i].ready)
);
assign operands_if[i].data.rs1_data = rs1_data;
assign operands_if[i].data.rs2_data = rs2_data;
assign operands_if[i].data.rs3_data = rs3_data;
assign operands_if[i].data.rs1_data = (state_p == STATE_FETCH1) ? gpr_rd_data : rs1_data;
assign operands_if[i].data.rs2_data = (state_p == STATE_FETCH2) ? gpr_rd_data : rs2_data;
assign operands_if[i].data.rs3_data = (state_p == STATE_FETCH3) ? gpr_rd_data : rs3_data;
// GPR banks
@@ -279,7 +281,8 @@ module VX_operands import VX_gpu_pkg::*; #(
.INIT_ENABLE (1),
.INIT_VALUE (0),
`endif
.NO_RWCHECK (1)
.NO_RWCHECK (1),
.OUT_REG (1),
) gpr_ram (
.clk (clk),
.read (1'b1),

116
hw/rtl/core/VX_operands_dup.sv
View File

@@ -35,18 +35,26 @@ module VX_operands_dup import VX_gpu_pkg::*; #(
logic [`ISSUE_WIDTH-1:0][`PERF_CTR_BITS-1:0] perf_rf_write_per_warp;
`endif
logic [`ISSUE_WIDTH-1:0][DATAW-1:0] scoreboard_if_stored;
logic [`ISSUE_WIDTH-1:0] scoreboard_if_stored_valid;
logic [`ISSUE_WIDTH-1:0] full1;
logic [`ISSUE_WIDTH-1:0][`NUM_THREADS-1:0] full2;
logic [`ISSUE_WIDTH-1:0] empty1;
logic [`ISSUE_WIDTH-1:0][`NUM_THREADS-1:0] empty2;
logic [`ISSUE_WIDTH-1:0][2:0] size1;
for (genvar i = 0; i < `ISSUE_WIDTH; ++i) begin
VX_stream_buffer #(
.DATAW (DATAW)
) staging_buffer (
.clk (clk),
.reset (reset),
.valid_in (scoreboard_if[i].valid),
.data_in ({
always @(posedge clk) begin
if (reset) begin
scoreboard_if_stored[i] <= '0;
scoreboard_if_stored_valid[i] <= '0;
end else begin
scoreboard_if_stored[i] <= {
scoreboard_if[i].data.uuid,
scoreboard_if[i].data.wis,
scoreboard_if[i].data.tmask,
scoreboard_if[i].data.PC,
scoreboard_if[i].data.PC,
scoreboard_if[i].data.wb,
scoreboard_if[i].data.ex_type,
scoreboard_if[i].data.op_type,
@@ -55,14 +63,27 @@ module VX_operands_dup import VX_gpu_pkg::*; #(
scoreboard_if[i].data.use_imm,
scoreboard_if[i].data.imm,
scoreboard_if[i].data.rd
}),
.ready_in (scoreboard_if[i].ready),
.valid_out (operands_if[i].valid),
.data_out ({
};
scoreboard_if_stored_valid[i] <= scoreboard_if[i].valid && scoreboard_if[i].ready;
end
end
VX_fifo_queue #(
.DATAW (DATAW),
.DEPTH (4), // could be 3 but limited by power of 2
.OUT_REG (0),
.LUTRAM (0)
) fifo_queue (
.clk (clk),
.reset (reset),
.push (scoreboard_if_stored_valid[i]),
.pop (operands_if[i].ready && ~empty1[i]),
.data_in (scoreboard_if_stored[i]),
.data_out ({
operands_if[i].data.uuid,
operands_if[i].data.wis,
operands_if[i].data.tmask,
operands_if[i].data.PC,
operands_if[i].data.PC,
operands_if[i].data.wb,
operands_if[i].data.ex_type,
operands_if[i].data.op_type,
@@ -72,31 +93,52 @@ module VX_operands_dup import VX_gpu_pkg::*; #(
operands_if[i].data.imm,
operands_if[i].data.rd
}),
.ready_out (operands_if[i].ready)
.empty (empty1[i]),
.full (full1[i]),
`UNUSED_PIN (alm_empty),
`UNUSED_PIN (alm_full),
.size (size1[i])
);
assign operands_if[i].valid = ~empty1[i];
assign scoreboard_if[i].ready = (size1[i] < 2'd2);
// assert (full1[i] == full2[i]);
// assert (empty1[i] == empty2[i]);
wire [`NUM_THREADS-1:0][`XLEN-1:0] rs1_data;
wire [`NUM_THREADS-1:0][`XLEN-1:0] rs2_data;
wire [`NUM_THREADS-1:0][`XLEN-1:0] rs3_data;
reg [RAM_ADDRW-1:0] gpr_rd_addr_rs1_stored;
reg [RAM_ADDRW-1:0] gpr_rd_addr_rs2_stored;
reg [RAM_ADDRW-1:0] gpr_rd_addr_rs3_stored;
for (genvar j = 0; j < `NUM_THREADS; ++j) begin
VX_stream_buffer #(
.DATAW (`XLEN + `XLEN + `XLEN)
) staging_data_buffer (
.clk (clk),
.reset (reset),
.valid_in (scoreboard_if[i].valid),
.data_in ({
rs1_data[j], rs2_data[j], rs3_data[j]
VX_fifo_queue #(
.DATAW (`XLEN + `XLEN + `XLEN),
.DEPTH (4),
.OUT_REG (0),
.LUTRAM (0)
) fifo_queue (
.clk (clk),
.reset (reset),
.push (scoreboard_if_stored_valid[i]),
.pop (operands_if[i].ready && ~empty2[i][0]),
.data_in ({
(gpr_rd_addr_rs1_stored == '0) ? 32'd0 : rs1_data[j],
(gpr_rd_addr_rs2_stored == '0) ? 32'd0 : rs2_data[j],
(gpr_rd_addr_rs3_stored == '0) ? 32'd0 : rs3_data[j]
}),
`UNUSED_PIN (ready_in),
`UNUSED_PIN (valid_out),
.data_out ({
operands_if[i].data.rs1_data[j],
operands_if[i].data.rs2_data[j],
operands_if[i].data.rs3_data[j]
.data_out ({
operands_if[i].data.rs1_data[j],
operands_if[i].data.rs2_data[j],
operands_if[i].data.rs3_data[j]
}),
.ready_out (operands_if[i].ready)
.empty (empty2[i][j]),
.full (full2[i][j]),
`UNUSED_PIN (alm_empty),
`UNUSED_PIN (alm_full),
`UNUSED_PIN (size)
);
end
@@ -106,6 +148,19 @@ module VX_operands_dup import VX_gpu_pkg::*; #(
wire [RAM_ADDRW-1:0] gpr_rd_addr_rs2;
wire [RAM_ADDRW-1:0] gpr_rd_addr_rs3;
wire [RAM_ADDRW-1:0] gpr_wr_addr;
always @(posedge clk) begin
if (reset) begin
gpr_rd_addr_rs1_stored <= '0;
gpr_rd_addr_rs2_stored <= '0;
gpr_rd_addr_rs3_stored <= '0;
end else begin
gpr_rd_addr_rs1_stored <= gpr_rd_addr_rs1;
gpr_rd_addr_rs2_stored <= gpr_rd_addr_rs2;
gpr_rd_addr_rs3_stored <= gpr_rd_addr_rs3;
end
end
if (ISSUE_WIS != 0) begin
assign gpr_wr_addr = {writeback_if[i].data.wis, writeback_if[i].data.rd};
assign gpr_rd_addr_rs1 = {scoreboard_if[i].data.wis, scoreboard_if[i].data.rs1};
@@ -165,6 +220,7 @@ module VX_operands_dup import VX_gpu_pkg::*; #(
VX_dp_ram #(
.DATAW (`XLEN),
.SIZE (`NUM_REGS * ISSUE_RATIO),
.OUT_REG (1),
`ifdef GPR_RESET
.INIT_ENABLE (1),
.INIT_VALUE (0),
@@ -188,6 +244,7 @@ module VX_operands_dup import VX_gpu_pkg::*; #(
VX_dp_ram #(
.DATAW (`XLEN),
.SIZE (`NUM_REGS * ISSUE_RATIO),
.OUT_REG (1),
`ifdef GPR_RESET
.INIT_ENABLE (1),
.INIT_VALUE (0),
@@ -211,6 +268,7 @@ module VX_operands_dup import VX_gpu_pkg::*; #(
VX_dp_ram #(
.DATAW (`XLEN),
.SIZE (`NUM_REGS * ISSUE_RATIO),
.OUT_REG (1),
`ifdef GPR_RESET
.INIT_ENABLE (1),
.INIT_VALUE (0),