wu-arch/vortex
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

RTL code refactoring

Browse Source
This commit is contained in:
Blaise Tine
2020-04-19 09:24:04 -04:00
parent 3139d37610
commit e9dfa828fe
33 changed files with 998 additions and 1022 deletions
Download Patch File Download Diff File Expand all files Collapse all files

48
hw/rtl/VX_scheduler.v
View File

@@ -1,13 +1,13 @@
`include "VX_define.vh"
module VX_scheduler (
input wire clk,
input wire reset,
input wire memory_delay,
input wire exec_delay,
input wire gpr_stage_delay,
VX_frE_to_bckE_req_if vx_bckE_req,
VX_wb_if vx_writeback_if,
input wire clk,
input wire reset,
input wire memory_delay,
input wire exec_delay,
input wire gpr_stage_delay,
VX_frE_to_bckE_req_if bckE_req_if,
VX_wb_if writeback_if,
output wire schedule_delay,
output wire is_empty
@@ -18,31 +18,31 @@ module VX_scheduler (
reg[31:0][`NUM_THREADS-1:0] rename_table[`NUM_WARPS-1:0];
wire valid_wb = (vx_writeback_if.wb != 0) && (|vx_writeback_if.wb_valid) && (vx_writeback_if.rd != 0);
wire wb_inc = (vx_bckE_req.wb != 0) && (vx_bckE_req.rd != 0);
wire valid_wb = (writeback_if.wb != 0) && (|writeback_if.wb_valid) && (writeback_if.rd != 0);
wire wb_inc = (bckE_req_if.wb != 0) && (bckE_req_if.rd != 0);
wire rs1_rename = rename_table[vx_bckE_req.warp_num][vx_bckE_req.rs1] != 0;
wire rs2_rename = rename_table[vx_bckE_req.warp_num][vx_bckE_req.rs2] != 0;
wire rd_rename = rename_table[vx_bckE_req.warp_num][vx_bckE_req.rd ] != 0;
wire rs1_rename = rename_table[bckE_req_if.warp_num][bckE_req_if.rs1] != 0;
wire rs2_rename = rename_table[bckE_req_if.warp_num][bckE_req_if.rs2] != 0;
wire rd_rename = rename_table[bckE_req_if.warp_num][bckE_req_if.rd ] != 0;
wire is_store = (vx_bckE_req.mem_write != `NO_MEM_WRITE);
wire is_load = (vx_bckE_req.mem_read != `NO_MEM_READ);
wire is_store = (bckE_req_if.mem_write != `NO_MEM_WRITE);
wire is_load = (bckE_req_if.mem_read != `NO_MEM_READ);
// classify our next instruction.
wire is_mem = is_store || is_load;
wire is_gpu = (vx_bckE_req.is_wspawn || vx_bckE_req.is_tmc || vx_bckE_req.is_barrier || vx_bckE_req.is_split);
wire is_csr = vx_bckE_req.is_csr;
wire is_gpu = (bckE_req_if.is_wspawn || bckE_req_if.is_tmc || bckE_req_if.is_barrier || bckE_req_if.is_split);
wire is_csr = bckE_req_if.is_csr;
wire is_exec = !is_mem && !is_gpu && !is_csr;
wire using_rs2 = (vx_bckE_req.rs2_src == `RS2_REG) || is_store || vx_bckE_req.is_barrier || vx_bckE_req.is_wspawn;
wire using_rs2 = (bckE_req_if.rs2_src == `RS2_REG) || is_store || bckE_req_if.is_barrier || bckE_req_if.is_wspawn;
wire rs1_rename_qual = ((rs1_rename) && (vx_bckE_req.rs1 != 0));
wire rs2_rename_qual = ((rs2_rename) && (vx_bckE_req.rs2 != 0 && using_rs2));
wire rd_rename_qual = ((rd_rename ) && (vx_bckE_req.rd != 0));
wire rs1_rename_qual = ((rs1_rename) && (bckE_req_if.rs1 != 0));
wire rs2_rename_qual = ((rs2_rename) && (bckE_req_if.rs2 != 0 && using_rs2));
wire rd_rename_qual = ((rd_rename ) && (bckE_req_if.rd != 0));
wire rename_valid = rs1_rename_qual || rs2_rename_qual || rd_rename_qual;
assign schedule_delay = ((rename_valid) && (|vx_bckE_req.valid))
assign schedule_delay = ((rename_valid) && (|bckE_req_if.valid))
|| (memory_delay && is_mem)
|| (gpr_stage_delay && (is_mem || is_exec))
|| (exec_delay && is_exec);
@@ -59,15 +59,15 @@ module VX_scheduler (
end
end else begin
if (valid_wb) begin
rename_table[vx_writeback_if.wb_warp_num][vx_writeback_if.rd] <= rename_table[vx_writeback_if.wb_warp_num][vx_writeback_if.rd] & (~vx_writeback_if.wb_valid);
rename_table[writeback_if.wb_warp_num][writeback_if.rd] <= rename_table[writeback_if.wb_warp_num][writeback_if.rd] & (~writeback_if.wb_valid);
end
if (!schedule_delay && wb_inc) begin
rename_table[vx_bckE_req.warp_num][vx_bckE_req.rd] <= vx_bckE_req.valid;
rename_table[bckE_req_if.warp_num][bckE_req_if.rd] <= bckE_req_if.valid;
end
if (valid_wb
&& (0 == (rename_table[vx_writeback_if.wb_warp_num][vx_writeback_if.rd] & ~vx_writeback_if.wb_valid))) begin
&& (0 == (rename_table[writeback_if.wb_warp_num][writeback_if.rd] & ~writeback_if.wb_valid))) begin
count_valid <= count_valid - 1;
end