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Added Snoop Invalidate/Writeback Req type

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This commit is contained in:
felsabbagh3
2020-03-05 01:30:16 -08:00
parent e0620a6f6a
commit 457e8644f3
9 changed files with 151 additions and 33 deletions
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41
rtl/VX_cache/VX_cache.v
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@@ -39,7 +39,15 @@ module VX_cache (
output wire dram_req_read,
output wire [31:0] dram_req_addr,
output wire [31:0] dram_req_size,
output wire [`BANK_LINE_SIZE_RNG][31:0] dram_req_data
output wire [`BANK_LINE_SIZE_RNG][31:0] dram_req_data,
output wire dram_req_because_of_wb,
output wire dram_snp_full,
// Snoop Req
input wire snp_req,
input wire[31:0] snp_req_addr
);
@@ -60,6 +68,7 @@ module VX_cache (
wire[`NUMBER_BANKS-1:0] per_bank_dram_wb_queue_pop;
wire[`NUMBER_BANKS-1:0] per_bank_dram_wb_req;
wire[`NUMBER_BANKS-1:0] per_bank_dram_because_of_snp;
wire[`NUMBER_BANKS-1:0][31:0] per_bank_dram_wb_req_addr;
wire[`NUMBER_BANKS-1:0][`BANK_LINE_SIZE_RNG][31:0] per_bank_dram_wb_req_data;
@@ -78,6 +87,7 @@ module VX_cache (
.per_bank_dram_fill_req_addr(per_bank_dram_fill_req_addr),
.per_bank_dram_wb_queue_pop (per_bank_dram_wb_queue_pop),
.per_bank_dram_wb_req (per_bank_dram_wb_req),
.per_bank_dram_because_of_snp(per_bank_dram_because_of_snp),
.per_bank_dram_wb_req_addr (per_bank_dram_wb_req_addr),
.per_bank_dram_wb_req_data (per_bank_dram_wb_req_data),
.dram_req (dram_req),
@@ -85,7 +95,8 @@ module VX_cache (
.dram_req_read (dram_req_read),
.dram_req_addr (dram_req_addr),
.dram_req_size (dram_req_size),
.dram_req_data (dram_req_data)
.dram_req_data (dram_req_data),
.dram_req_because_of_wb (dram_req_because_of_wb)
);
@@ -140,6 +151,8 @@ module VX_cache (
wire curr_bank_dfqq_full;
wire curr_bank_dram_fill_req;
wire curr_bank_dram_because_of_snp;
wire curr_bank_dram_snp_full;
wire[31:0] curr_bank_dram_fill_req_addr;
wire curr_bank_dram_wb_queue_pop;
@@ -147,6 +160,9 @@ module VX_cache (
wire[31:0] curr_bank_dram_wb_req_addr;
wire[`BANK_LINE_SIZE_RNG][31:0] curr_bank_dram_wb_req_data;
wire curr_bank_snp_req;
wire[31:0] curr_bank_snp_req_addr;
wire curr_bank_reqq_full;
// Core Req
@@ -181,10 +197,15 @@ module VX_cache (
assign per_bank_dram_fill_accept[curr_bank] = curr_bank_dram_fill_accept;
// Dram writeback request
assign curr_bank_dram_wb_queue_pop = per_bank_dram_wb_queue_pop[curr_bank];
assign per_bank_dram_wb_req[curr_bank] = curr_bank_dram_wb_req;
assign per_bank_dram_wb_req_addr[curr_bank] = curr_bank_dram_wb_req_addr;
assign per_bank_dram_wb_req_data[curr_bank] = curr_bank_dram_wb_req_data;
assign curr_bank_dram_wb_queue_pop = per_bank_dram_wb_queue_pop[curr_bank];
assign per_bank_dram_wb_req[curr_bank] = curr_bank_dram_wb_req;
assign per_bank_dram_because_of_snp[curr_bank] = curr_bank_dram_because_of_snp;
assign per_bank_dram_wb_req_addr[curr_bank] = curr_bank_dram_wb_req_addr;
assign per_bank_dram_wb_req_data[curr_bank] = curr_bank_dram_wb_req_data;
// Snoop Request
assign curr_bank_snp_req = snp_req && (snp_req_addr[`BANK_SELECT_ADDR_RNG] == curr_bank);
assign curr_bank_snp_req_addr = snp_req_addr;
VX_bank bank (
@@ -226,7 +247,13 @@ module VX_cache (
.dram_wb_queue_pop (curr_bank_dram_wb_queue_pop),
.dram_wb_req (curr_bank_dram_wb_req),
.dram_wb_req_addr (curr_bank_dram_wb_req_addr),
.dram_wb_req_data (curr_bank_dram_wb_req_data)
.dram_wb_req_data (curr_bank_dram_wb_req_data),
.dram_because_of_snp (curr_bank_dram_because_of_snp),
.dram_snp_full (curr_bank_dram_snp_full),
// Snoop Request
.snp_req (curr_bank_snp_req),
.snp_req_addr (curr_bank_snp_req_addr)
);
end