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+Added icache stage -- 3rd case of AUIPC os broken?

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This commit is contained in:
felsabbagh3
2020-03-01 18:01:02 -08:00
parent ca61801199
commit f98f5c414d
4 changed files with 96 additions and 37 deletions
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35
rtl/VX_front_end.v
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@@ -20,12 +20,15 @@ module VX_front_end (
);
VX_inst_meta_inter fe_inst_meta_fd();
VX_inst_meta_inter fe_inst_meta_fi();
VX_inst_meta_inter fe_inst_meta_fi2();
VX_inst_meta_inter fe_inst_meta_id();
VX_frE_to_bckE_req_inter VX_frE_to_bckE_req();
VX_inst_meta_inter fd_inst_meta_de();
wire total_freeze = schedule_delay;
wire icache_stage_delay;
/* verilator lint_off UNUSED */
// wire real_fetch_ebreak;
@@ -47,20 +50,38 @@ VX_fetch vx_fetch(
.VX_join (VX_join),
.schedule_delay (schedule_delay),
.VX_jal_rsp (VX_jal_rsp),
.icache_response (icache_response_fe),
.VX_warp_ctl (VX_warp_ctl),
.icache_request (icache_request_fe),
.icache_stage_delay (icache_stage_delay),
.VX_branch_rsp (VX_branch_rsp),
.out_ebreak (vortex_ebreak), // fetch_ebreak
.fe_inst_meta_fd (fe_inst_meta_fd)
.fe_inst_meta_fi (fe_inst_meta_fi)
);
VX_f_d_reg vx_f_d_reg(
wire freeze_fi_reg = total_freeze || icache_stage_delay;
VX_f_d_reg vx_f_i_reg(
.clk (clk),
.reset (reset),
.in_freeze (freeze_fi_reg),
.fe_inst_meta_fd(fe_inst_meta_fi),
.fd_inst_meta_de(fe_inst_meta_fi2)
);
VX_icache_stage VX_icache_stage(
.clk (clk),
.reset (reset),
.icache_stage_delay(icache_stage_delay),
.fe_inst_meta_fi (fe_inst_meta_fi2),
.fe_inst_meta_id (fe_inst_meta_id),
.icache_response (icache_response_fe),
.icache_request (icache_request_fe)
);
VX_f_d_reg vx_i_d_reg(
.clk (clk),
.reset (reset),
.in_freeze (total_freeze),
.fe_inst_meta_fd(fe_inst_meta_fd),
.fe_inst_meta_fd(fe_inst_meta_id),
.fd_inst_meta_de(fd_inst_meta_de)
);