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Before Fetch->FE

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This commit is contained in:
felsabbagh3
2019-09-08 18:09:11 -04:00
parent c310e7381f
commit ad45758a35
26 changed files with 229 additions and 157 deletions
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30
rtl/VX_fetch.v
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@@ -4,26 +4,21 @@
module VX_fetch (
input wire clk,
input wire reset,
input wire in_branch_dir,
input wire in_freeze,
input wire[31:0] in_branch_dest,
input wire in_memory_delay,
input wire in_branch_stall,
input wire in_fwd_stall,
input wire in_branch_stall_exe,
input wire in_clone_stall,
input wire in_jal,
input wire[31:0] in_jal_dest,
input wire in_interrupt,
input wire in_debug,
input wire[`NW_M1:0] in_memory_warp_num,
VX_icache_response_inter icache_response,
VX_icache_request_inter icache_request,
output wire out_delay,
output wire out_ebreak,
output wire[`NW_M1:0] out_which_wspawn,
VX_inst_meta_inter fe_inst_meta_fd,
VX_warp_ctl_inter VX_warp_ctl
VX_jal_response_inter VX_jal_rsp,
VX_branch_response_inter VX_branch_rsp,
VX_inst_meta_inter fe_inst_meta_fd,
VX_warp_ctl_inter VX_warp_ctl
);
wire in_change_mask = VX_warp_ctl.change_mask;
@@ -33,6 +28,9 @@ module VX_fetch (
wire[`NW_M1:0] in_decode_warp_num = VX_warp_ctl.warp_num;
wire in_freeze = out_delay || in_memory_delay;
wire in_thread_mask[`NT_M1:0];
genvar ind;
@@ -96,7 +94,7 @@ module VX_fetch (
assign out_ebreak = (in_decode_warp_num == 0) && in_ebreak;
assign stall = in_clone_stall || in_branch_stall || in_fwd_stall || in_branch_stall_exe || in_interrupt || in_freeze || in_debug;
assign stall = in_clone_stall || in_branch_stall || in_fwd_stall || in_branch_stall_exe || in_freeze;
assign out_which_wspawn = (warp_state+1);
@@ -140,8 +138,8 @@ module VX_fetch (
for (cur_warp = 0; cur_warp < `NW; cur_warp = cur_warp + 1)
begin
wire warp_zero_change_mask = in_change_mask && (in_decode_warp_num == cur_warp);
wire warp_zero_jal = in_jal && (in_memory_warp_num == cur_warp);
wire warp_zero_branch = in_branch_dir && (in_memory_warp_num == cur_warp);
wire warp_zero_jal = VX_jal_rsp.jal && (VX_jal_rsp.jal_warp_num == cur_warp);
wire warp_zero_branch = VX_branch_rsp.branch_dir && (VX_branch_rsp.branch_warp_num == cur_warp);
wire warp_zero_stall = stall || (warp_num != cur_warp);
wire warp_zero_wspawn = (cur_warp == 0) ? 0 : (in_wspawn && ((warp_state+1) == cur_warp));
wire[31:0] warp_zero_wspawn_pc = in_wspawn_pc;
@@ -159,9 +157,9 @@ module VX_fetch (
.in_thread_mask(in_thread_mask),
.in_change_mask(warp_zero_change_mask),
.in_jal (warp_zero_jal),
.in_jal_dest (in_jal_dest),
.in_jal_dest (VX_jal_rsp.jal_dest),
.in_branch_dir (warp_zero_branch),
.in_branch_dest(in_branch_dest),
.in_branch_dest(VX_branch_rsp.branch_dest),
.in_wspawn (warp_zero_wspawn),
.in_wspawn_pc (warp_zero_wspawn_pc),
.out_PC (warp_glob_pc[cur_warp]),