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Moved GPR to back-end

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This commit is contained in:
felsabbagh3
2019-10-14 19:08:32 -04:00
parent e67310acfb
commit ee83e6d8c8
26 changed files with 2320 additions and 2564 deletions
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34
rtl/VX_front_end.v
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@@ -7,8 +7,10 @@ module VX_front_end (
input wire forwarding_fwd_stall,
input wire memory_delay,
input wire execute_branch_stall,
input wire in_gpr_stall,
VX_warp_ctl_inter VX_warp_ctl,
VX_icache_response_inter icache_response_fe,
VX_icache_request_inter icache_request_fe,
@@ -17,8 +19,6 @@ module VX_front_end (
VX_branch_response_inter VX_branch_rsp,
VX_wb_inter VX_writeback_inter,
VX_forward_reqeust_inter VX_fwd_req_de,
VX_forward_response_inter VX_fwd_rsp,
VX_frE_to_bckE_req_inter VX_bckE_req,
@@ -27,9 +27,6 @@ module VX_front_end (
output wire fetch_ebreak
);
wire[`NW_M1:0] fetch_which_warp;
VX_warp_ctl_inter VX_warp_ctl();
VX_inst_meta_inter fe_inst_meta_fd();
@@ -41,8 +38,11 @@ wire decode_branch_stall;
wire decode_gpr_stall;
wire total_freeze = memory_delay || fetch_delay;
wire total_freeze = memory_delay || fetch_delay || in_gpr_stall;
/* verilator lint_off UNUSED */
wire real_fetch_ebreak;
/* verilator lint_on UNUSED */
VX_fetch vx_fetch(
.clk (clk),
@@ -58,8 +58,7 @@ VX_fetch vx_fetch(
.icache_request (icache_request_fe),
.VX_branch_rsp (VX_branch_rsp),
.out_delay (fetch_delay),
.out_ebreak (fetch_ebreak),
.out_which_wspawn (fetch_which_warp),
.out_ebreak (real_fetch_ebreak), // fetch_ebreak
.fe_inst_meta_fd (fe_inst_meta_fd)
);
@@ -75,26 +74,21 @@ VX_f_d_reg vx_f_d_reg(
VX_decode vx_decode(
.clk (clk),
.fd_inst_meta_de (fd_inst_meta_de),
.VX_writeback_inter(VX_writeback_inter),
.VX_fwd_rsp (VX_fwd_rsp),
.in_which_wspawn (fetch_which_warp),
.VX_frE_to_bckE_req(VX_frE_to_bckE_req),
.VX_fwd_req_de (VX_fwd_req_de),
.VX_warp_ctl (VX_warp_ctl),
.out_gpr_stall (decode_gpr_stall),
.out_branch_stall (decode_branch_stall)
.out_gpr_stall (decode_gpr_stall),
.out_branch_stall (decode_branch_stall),
.out_ebreak (fetch_ebreak)
);
wire special_what = total_freeze || forwarding_fwd_stall;
VX_d_e_reg vx_d_e_reg(
.clk (clk),
.reset (reset),
.in_fwd_stall (forwarding_fwd_stall),
.in_fwd_stall (0),
.in_branch_stall(execute_branch_stall),
.in_freeze (total_freeze),
.in_freeze (special_what),
.in_gpr_stall (decode_gpr_stall),
.VX_frE_to_bckE_req(VX_frE_to_bckE_req),
.VX_bckE_req (VX_bckE_req)