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lsu unit fmax optimization

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This commit is contained in:
Blaise Tine
2021-09-06 23:47:09 -07:00
parent 105a24d65e
commit c8d705158c
1 changed files with 6 additions and 6 deletions
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10
hw/rtl/VX_lsu_unit.v
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@@ -119,11 +119,12 @@ module VX_lsu_unit #(
wire [`NUM_THREADS-1:0] dcache_req_fire = dcache_req_if.valid & dcache_req_if.ready; wire [`NUM_THREADS-1:0] dcache_req_fire = dcache_req_if.valid & dcache_req_if.ready;
wire dcache_req_fire_any = (| dcache_req_fire);
wire dcache_rsp_fire = dcache_rsp_if.valid && dcache_rsp_if.ready; wire dcache_rsp_fire = dcache_rsp_if.valid && dcache_rsp_if.ready;
wire mbuf_push = dcache_req_fire_any wire [`NUM_THREADS-1:0] req_tmask_dup = req_tmask & {{(`NUM_THREADS-1){~req_is_dup}}, 1'b1};
wire mbuf_push = ~mbuf_full
&& (| ({`NUM_THREADS{req_valid}} & req_tmask_dup & dcache_req_if.ready))
&& is_req_start // first submission only && is_req_start // first submission only
&& req_wb; // loads only && req_wb; // loads only
@@ -148,8 +149,6 @@ module VX_lsu_unit #(
.empty (mbuf_empty) .empty (mbuf_empty)
); );
wire [`NUM_THREADS-1:0] req_tmask_dup = req_tmask & {{(`NUM_THREADS-1){~req_is_dup}}, 1'b1};
wire dcache_req_ready = &(dcache_req_if.ready | req_sent_mask | ~req_tmask_dup); wire dcache_req_ready = &(dcache_req_if.ready | req_sent_mask | ~req_tmask_dup);
wire [`NUM_THREADS-1:0] req_sent_mask_n = req_sent_mask | dcache_req_fire; wire [`NUM_THREADS-1:0] req_sent_mask_n = req_sent_mask | dcache_req_fire;
@@ -331,6 +330,7 @@ module VX_lsu_unit #(
`endif `endif
`ifdef DBG_PRINT_CORE_DCACHE `ifdef DBG_PRINT_CORE_DCACHE
wire dcache_req_fire_any = (| dcache_req_fire);
always @(posedge clk) begin always @(posedge clk) begin
if (lsu_req_if.valid && fence_wait) begin if (lsu_req_if.valid && fence_wait) begin
dpi_trace("%d: *** D$%0d fence wait\n", $time, CORE_ID); dpi_trace("%d: *** D$%0d fence wait\n", $time, CORE_ID);