github-mirrors/vortex
1
0
Fork 0
mirror of https://github.com/vortexgpgpu/vortex.git synced 2025-04-24 05:47:35 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

duplicate addressing fix

Browse source
This commit is contained in:
Blaise Tine 2021-06-14 05:53:18 -04:00
parent 01c1c02648
commit ee06337553
1 changed files with 4 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

13
hw/rtl/VX_lsu_unit.v
View file

@ -49,26 +49,21 @@ module VX_lsu_unit #(
assign full_addr[i] = lsu_req_if.base_addr[i] + lsu_req_if.offset;
end
wire [`NUM_THREADS-1:0][REQ_ADDRW-1:0] word_addr;
for (genvar i = 0; i < `NUM_THREADS; i++) begin
assign word_addr[i] = full_addr[i][REQ_ASHIFT +: REQ_ADDRW];
end
// detect duplicate addresses
wire [`NUM_THREADS-1:0] addr_matches;
for (genvar i = 0; i < `NUM_THREADS; i++) begin
assign addr_matches[i] = (word_addr[0] == word_addr[i]) || ~lsu_req_if.tmask[i];
assign addr_matches[i] = (full_addr[0] == full_addr[i]) || ~lsu_req_if.tmask[i];
end
wire lsu_is_dup = lsu_req_if.tmask[0] && (& addr_matches);
for (genvar i = 0; i < `NUM_THREADS; i++) begin
// is non-cacheable address
wire is_addr_nc = (word_addr[i][(MEM_ASHIFT-REQ_ASHIFT) +: MEM_ADDRW] >= MEM_ADDRW'(`IO_BASE_ADDR >> MEM_ASHIFT));
wire is_addr_nc = (full_addr[i][MEM_ASHIFT +: MEM_ADDRW] >= MEM_ADDRW'(`IO_BASE_ADDR >> MEM_ASHIFT));
if (`SM_ENABLE) begin
// is shared memory address
wire is_addr_sm = (word_addr[i][(MEM_ASHIFT-REQ_ASHIFT) +: MEM_ADDRW] >= MEM_ADDRW'((`SMEM_BASE_ADDR - `SMEM_SIZE) >> MEM_ASHIFT))
& (word_addr[i][(MEM_ASHIFT-REQ_ASHIFT) +: MEM_ADDRW] < MEM_ADDRW'(`SMEM_BASE_ADDR >> MEM_ASHIFT));
wire is_addr_sm = (full_addr[i][MEM_ASHIFT +: MEM_ADDRW] >= MEM_ADDRW'((`SMEM_BASE_ADDR - `SMEM_SIZE) >> MEM_ASHIFT))
& (full_addr[i][MEM_ASHIFT +: MEM_ADDRW] < MEM_ADDRW'(`SMEM_BASE_ADDR >> MEM_ASHIFT));
assign lsu_addr_type[i] = {is_addr_nc, is_addr_sm};
end else begin
assign lsu_addr_type[i] = is_addr_nc;