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pipeline refactoring

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This commit is contained in:
Blaise Tine
2020-07-20 08:04:04 -04:00
parent 25f66e6490
commit 577a5791dc
29 changed files with 499 additions and 323 deletions
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12
hw/rtl/VX_branch_unit.v
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@@ -10,8 +10,8 @@ module VX_branch_unit #(
VX_branch_req_if branch_req_if,
// Outputs
VX_branch_rsp_if branch_rsp_if,
VX_wb_if branch_wb_if
VX_branch_ctl_if branch_ctl_if,
VX_commit_if branch_commit_if
);
wire [`NT_BITS-1:0] br_result_index;
@@ -19,7 +19,7 @@ module VX_branch_unit #(
VX_priority_encoder #(
.N(`NUM_THREADS)
) choose_alu_result (
.data_in (alu_req_if.valid),
.data_in (branch_req_if.valid),
.data_out (br_result_index),
`UNUSED_PIN (valid_out)
);
@@ -53,7 +53,7 @@ module VX_branch_unit #(
wire [31:0] base_addr = (br_op == `BR_JALR) ? rs1_data : branch_req_if.curr_PC;
wire [31:0] br_dest = $signed(base_addr) + $signed(branch_req_if.offset);
wire stall = (~branch_wb_if.ready && (| branch_wb_if.valid));
wire stall = (~branch_commit_if.ready && (| branch_commit_if.valid));
VX_generic_register #(
.N(1 + `NW_BITS + 1 + 32)
@@ -63,7 +63,7 @@ module VX_branch_unit #(
.stall (stall),
.flush (0),
.in ({in_valid, branch_req_if.warp_num, br_taken, br_dest}),
.out ({branch_rsp_if.valid, branch_rsp_if.warp_num, branch_rsp_if.taken, branch_rsp_if.dest})
.out ({branch_ctl_if.valid, branch_ctl_if.warp_num, branch_ctl_if.taken, branch_ctl_if.dest})
);
VX_generic_register #(
@@ -74,7 +74,7 @@ module VX_branch_unit #(
.stall (stall),
.flush (0),
.in ({branch_req_if.valid, branch_req_if.warp_num, branch_req_if.curr_PC, branch_req_if.rd, branch_req_if.wb, {`NUM_THREADS{branch_req_if.next_PC}}}),
.out ({branch_wb_if.valid, branch_wb_if.warp_num, branch_wb_if.curr_PC, branch_wb_if.rd, branch_wb_if.wb, branch_wb_if.data})
.out ({branch_commit_if.valid, branch_commit_if.warp_num, branch_commit_if.curr_PC, branch_commit_if.rd, branch_commit_if.wb, branch_commit_if.data})
);
assign branch_req_if.ready = ~stall;