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

Merge branch 'master' of https://github.com/vortexgpgpu/vortex

Browse Source
This commit is contained in:
Blaise Tine
2021-10-19 03:07:13 -04:00
parent 67a76155b1 66e253ab95
commit e248f744d5
9 changed files with 172 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
hw/rtl/VX_lsu_unit.sv
View File

@@ -40,6 +40,7 @@ module VX_lsu_unit #(
wire [`NW_BITS-1:0] req_wid;
wire [31:0] req_pc;
wire req_is_dup;
wire req_is_prefetch;
wire mbuf_empty;
@@ -79,15 +80,17 @@ module VX_lsu_unit #(
wire lsu_valid = lsu_req_if.valid && ~fence_wait;
wire lsu_wb = lsu_req_if.wb | lsu_req_if.is_prefetch;
VX_pipe_register #(
.DATAW (1 + 1 + `NW_BITS + `NUM_THREADS + 32 + (`NUM_THREADS * 32) + (`NUM_THREADS * ADDR_TYPEW) + `INST_LSU_BITS + `NR_BITS + 1 + (`NUM_THREADS * 32)),
.DATAW (1 + 1 + 1 + `NW_BITS + `NUM_THREADS + 32 + (`NUM_THREADS * 32) + (`NUM_THREADS * ADDR_TYPEW) + `INST_LSU_BITS + `NR_BITS + 1 + (`NUM_THREADS * 32)),
.RESETW (1)
) req_pipe_reg (
.clk (clk),
.reset (reset),
.enable (!stall_in),
.data_in ({lsu_valid, lsu_is_dup, lsu_req_if.wid, lsu_req_if.tmask, lsu_req_if.PC, full_addr, lsu_addr_type, lsu_req_if.op_type, lsu_req_if.rd, lsu_req_if.wb, lsu_req_if.store_data}),
.data_out ({req_valid, req_is_dup, req_wid, req_tmask, req_pc, req_addr, req_addr_type, req_type, req_rd, req_wb, req_data})
.data_in ({lsu_valid, lsu_is_dup, lsu_req_if.is_prefetch, lsu_req_if.wid, lsu_req_if.tmask, lsu_req_if.PC, full_addr, lsu_addr_type, lsu_req_if.op_type, lsu_req_if.rd, lsu_wb, lsu_req_if.store_data}),
.data_out ({req_valid, req_is_dup, req_is_prefetch, req_wid, req_tmask, req_pc, req_addr, req_addr_type, req_type, req_rd, req_wb, req_data})
);
// Can accept new request?
@@ -99,8 +102,10 @@ module VX_lsu_unit #(
wire rsp_wb;
wire [`INST_LSU_BITS-1:0] rsp_type;
wire rsp_is_dup;
wire rsp_is_prefetch;
`UNUSED_VAR (rsp_type)
`UNUSED_VAR (rsp_is_prefetch)
reg [`LSUQ_SIZE-1:0][`NUM_THREADS-1:0] rsp_rem_mask;
wire [`NUM_THREADS-1:0] rsp_rem_mask_n;
@@ -131,10 +136,13 @@ module VX_lsu_unit #(
wire mbuf_pop = dcache_rsp_fire && (0 == rsp_rem_mask_n);
assign mbuf_raddr = dcache_rsp_if.tag[ADDR_TYPEW +: `LSUQ_ADDR_BITS];
`UNUSED_VAR (dcache_rsp_if.tag)
`UNUSED_VAR (dcache_rsp_if.tag)
// do not writeback from software prefetch
wire req_wb2 = req_wb && ~req_is_prefetch;
VX_index_buffer #(
.DATAW (`NW_BITS + 32 + `NUM_THREADS + `NR_BITS + 1 + `INST_LSU_BITS + (`NUM_THREADS * REQ_ASHIFT) + 1),
.DATAW (`NW_BITS + 32 + `NUM_THREADS + `NR_BITS + 1 + `INST_LSU_BITS + (`NUM_THREADS * REQ_ASHIFT) + 1 + 1),
.SIZE (`LSUQ_SIZE)
) req_metadata (
.clk (clk),
@@ -142,8 +150,8 @@ module VX_lsu_unit #(
.write_addr (mbuf_waddr),
.acquire_slot (mbuf_push),
.read_addr (mbuf_raddr),
.write_data ({req_wid, req_pc, req_tmask, req_rd, req_wb, req_type, req_offset, req_is_dup}),
.read_data ({rsp_wid, rsp_pc, rsp_tmask, rsp_rd, rsp_wb, rsp_type, rsp_offset, rsp_is_dup}),
.write_data ({req_wid, req_pc, req_tmask, req_rd, req_wb2, req_type, req_offset, req_is_dup, req_is_prefetch}),
.read_data ({rsp_wid, rsp_pc, rsp_tmask, rsp_rd, rsp_wb, rsp_type, rsp_offset, rsp_is_dup, rsp_is_prefetch}),
.release_addr (mbuf_raddr),
.release_slot (mbuf_pop),
.full (mbuf_full),
@@ -346,7 +354,7 @@ module VX_lsu_unit #(
`TRACE_ARRAY1D(dcache_req_if.data, `NUM_THREADS);
dpi_trace("\n");
end else begin
dpi_trace("%d: D$%0d Rd Req: wid=%0d, PC=%0h, tmask=%b, addr=", $time, CORE_ID, req_wid, req_pc, dcache_req_fire);
dpi_trace("%d: D$%0d Rd Req: prefetch=%b, wid=%0d, PC=%0h, tmask=%b, addr=", $time, CORE_ID, req_is_prefetch, req_wid, req_pc, dcache_req_fire);
`TRACE_ARRAY1D(req_addr, `NUM_THREADS);
dpi_trace(", tag=%0h, byteen=%0h, type=", req_tag, dcache_req_if.byteen);
`TRACE_ARRAY1D(req_addr_type, `NUM_THREADS);
@@ -354,8 +362,8 @@ module VX_lsu_unit #(
end
end
if (dcache_rsp_fire) begin
dpi_trace("%d: D$%0d Rsp: wid=%0d, PC=%0h, tmask=%b, tag=%0h, rd=%0d, data=",
$time, CORE_ID, rsp_wid, rsp_pc, dcache_rsp_if.tmask, mbuf_raddr, rsp_rd);
dpi_trace("%d: D$%0d Rsp: prefetch=%b, wid=%0d, PC=%0h, tmask=%b, tag=%0h, rd=%0d, data=",
$time, CORE_ID, rsp_is_prefetch, rsp_wid, rsp_pc, dcache_rsp_if.tmask, mbuf_raddr, rsp_rd);
`TRACE_ARRAY1D(dcache_rsp_if.data, `NUM_THREADS);
dpi_trace(", is_dup=%b\n", rsp_is_dup);
end