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

instr_sched => ibuffer

Browse Source
This commit is contained in:
Blaise Tine
2021-06-27 19:36:43 -07:00
parent 212581a33d
commit f84c8a0b5d
10 changed files with 117 additions and 114 deletions
Download Patch File Download Diff File Expand all files Collapse all files

96
hw/rtl/VX_issue.v
View File

@@ -21,36 +21,36 @@ module VX_issue #(
VX_fpu_req_if fpu_req_if,
VX_gpu_req_if gpu_req_if
);
VX_instr_sched_if instr_sched_if();
VX_instr_sched_if execute_if();
VX_ibuffer_if ibuffer_if();
VX_ibuffer_if execute_if();
VX_gpr_req_if gpr_req_if();
VX_gpr_rsp_if gpr_rsp_if();
wire scoreboard_delay;
VX_instr_sched #(
VX_ibuffer #(
.CORE_ID(CORE_ID)
) instr_sched (
.clk (clk),
.reset (reset),
.decode_if (decode_if),
.instr_sched_if (instr_sched_if)
) ibuffer (
.clk (clk),
.reset (reset),
.decode_if (decode_if),
.ibuffer_if (ibuffer_if)
);
VX_scoreboard #(
.CORE_ID(CORE_ID)
) scoreboard (
.clk (clk),
.reset (reset),
.instr_sched_if (instr_sched_if),
.writeback_if (writeback_if),
.delay (scoreboard_delay)
.clk (clk),
.reset (reset),
.ibuffer_if (ibuffer_if),
.writeback_if(writeback_if),
.delay (scoreboard_delay)
);
assign gpr_req_if.wid = instr_sched_if.wid;
assign gpr_req_if.rs1 = instr_sched_if.rs1;
assign gpr_req_if.rs2 = instr_sched_if.rs2;
assign gpr_req_if.rs3 = instr_sched_if.rs3;
assign gpr_req_if.wid = ibuffer_if.wid;
assign gpr_req_if.rs1 = ibuffer_if.rs1;
assign gpr_req_if.rs2 = ibuffer_if.rs2;
assign gpr_req_if.rs3 = ibuffer_if.rs3;
VX_gpr_stage #(
.CORE_ID(CORE_ID)
@@ -62,24 +62,24 @@ module VX_issue #(
.gpr_rsp_if (gpr_rsp_if)
);
assign execute_if.valid = instr_sched_if.valid && ~scoreboard_delay;
assign execute_if.wid = instr_sched_if.wid;
assign execute_if.tmask = instr_sched_if.tmask;
assign execute_if.PC = instr_sched_if.PC;
assign execute_if.ex_type = instr_sched_if.ex_type;
assign execute_if.op_type = instr_sched_if.op_type;
assign execute_if.op_mod = instr_sched_if.op_mod;
assign execute_if.wb = instr_sched_if.wb;
assign execute_if.rd = instr_sched_if.rd;
assign execute_if.rs1 = instr_sched_if.rs1;
assign execute_if.imm = instr_sched_if.imm;
assign execute_if.use_PC = instr_sched_if.use_PC;
assign execute_if.use_imm = instr_sched_if.use_imm;
assign execute_if.valid = ibuffer_if.valid && ~scoreboard_delay;
assign execute_if.wid = ibuffer_if.wid;
assign execute_if.tmask = ibuffer_if.tmask;
assign execute_if.PC = ibuffer_if.PC;
assign execute_if.ex_type = ibuffer_if.ex_type;
assign execute_if.op_type = ibuffer_if.op_type;
assign execute_if.op_mod = ibuffer_if.op_mod;
assign execute_if.wb = ibuffer_if.wb;
assign execute_if.rd = ibuffer_if.rd;
assign execute_if.rs1 = ibuffer_if.rs1;
assign execute_if.imm = ibuffer_if.imm;
assign execute_if.use_PC = ibuffer_if.use_PC;
assign execute_if.use_imm = ibuffer_if.use_imm;
VX_instr_demux instr_demux (
.clk (clk),
.reset (reset),
.execute_if (execute_if),
.ibuffer_if (execute_if),
.gpr_rsp_if (gpr_rsp_if),
.alu_req_if (alu_req_if),
.lsu_req_if (lsu_req_if),
@@ -89,23 +89,23 @@ module VX_issue #(
);
// issue the instruction
assign instr_sched_if.ready = !scoreboard_delay && execute_if.ready;
assign ibuffer_if.ready = !scoreboard_delay && execute_if.ready;
`SCOPE_ASSIGN (issue_fire, instr_sched_if.valid && instr_sched_if.ready);
`SCOPE_ASSIGN (issue_wid, instr_sched_if.wid);
`SCOPE_ASSIGN (issue_tmask, instr_sched_if.tmask);
`SCOPE_ASSIGN (issue_pc, instr_sched_if.PC);
`SCOPE_ASSIGN (issue_ex_type, instr_sched_if.ex_type);
`SCOPE_ASSIGN (issue_op_type, instr_sched_if.op_type);
`SCOPE_ASSIGN (issue_op_mod, instr_sched_if.op_mod);
`SCOPE_ASSIGN (issue_wb, instr_sched_if.wb);
`SCOPE_ASSIGN (issue_rd, instr_sched_if.rd);
`SCOPE_ASSIGN (issue_rs1, instr_sched_if.rs1);
`SCOPE_ASSIGN (issue_rs2, instr_sched_if.rs2);
`SCOPE_ASSIGN (issue_rs3, instr_sched_if.rs3);
`SCOPE_ASSIGN (issue_imm, instr_sched_if.imm);
`SCOPE_ASSIGN (issue_use_pc, instr_sched_if.use_PC);
`SCOPE_ASSIGN (issue_use_imm, instr_sched_if.use_imm);
`SCOPE_ASSIGN (issue_fire, ibuffer_if.valid && ibuffer_if.ready);
`SCOPE_ASSIGN (issue_wid, ibuffer_if.wid);
`SCOPE_ASSIGN (issue_tmask, ibuffer_if.tmask);
`SCOPE_ASSIGN (issue_pc, ibuffer_if.PC);
`SCOPE_ASSIGN (issue_ex_type, ibuffer_if.ex_type);
`SCOPE_ASSIGN (issue_op_type, ibuffer_if.op_type);
`SCOPE_ASSIGN (issue_op_mod, ibuffer_if.op_mod);
`SCOPE_ASSIGN (issue_wb, ibuffer_if.wb);
`SCOPE_ASSIGN (issue_rd, ibuffer_if.rd);
`SCOPE_ASSIGN (issue_rs1, ibuffer_if.rs1);
`SCOPE_ASSIGN (issue_rs2, ibuffer_if.rs2);
`SCOPE_ASSIGN (issue_rs3, ibuffer_if.rs3);
`SCOPE_ASSIGN (issue_imm, ibuffer_if.imm);
`SCOPE_ASSIGN (issue_use_pc, ibuffer_if.use_PC);
`SCOPE_ASSIGN (issue_use_imm, ibuffer_if.use_imm);
`SCOPE_ASSIGN (scoreboard_delay, scoreboard_delay);
`SCOPE_ASSIGN (execute_delay, ~execute_if.ready);
`SCOPE_ASSIGN (gpr_rsp_a, gpr_rsp_if.rs1_data);
@@ -145,7 +145,7 @@ module VX_issue #(
if (decode_if.valid & !decode_if.ready) begin
perf_ibf_stalls <= perf_ibf_stalls + `PERF_CTR_BITS'd1;
end
if (instr_sched_if.valid & scoreboard_delay) begin
if (ibuffer_if.valid & scoreboard_delay) begin
perf_scb_stalls <= perf_scb_stalls + `PERF_CTR_BITS'd1;
end
if (alu_req_if.valid & !alu_req_if.ready) begin