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

Before way logic change

Browse Source
This commit is contained in:
felsabbagh3
2019-11-08 18:16:40 -05:00
parent c79d08e12c
commit 8b81989bfd
9 changed files with 314 additions and 442 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
rtl/cache/VX_cache_data_per_index.v vendored
View File

@@ -46,7 +46,7 @@ module VX_cache_data_per_index
wire [CACHE_WAYS-1:0] valid_use_per_way;
wire [CACHE_WAYS-1:0] dirty_use_per_way;
wire [CACHE_WAYS-1:0] hit_per_way;
reg [NUM_IND-1:0][CACHE_WAY_INDEX-1:0] eviction_way_index;
reg [CACHE_WAY_INDEX-1:0] eviction_way_index;
wire [CACHE_WAYS-1:0][NUM_WORDS_PER_BLOCK-1:0][3:0] we_per_way;
wire [CACHE_WAYS-1:0][NUM_WORDS_PER_BLOCK-1:0][31:0] data_write_per_way;
wire [CACHE_WAYS-1:0] write_from_mem_per_way;
@@ -89,11 +89,11 @@ module VX_cache_data_per_index
wire update = |we && !miss;
wire valid = &valid_use_per_way;
assign way = hit ? way_index : (valid ? eviction_way_index[addr] : (invalid_found ? invalid_index : 0));
assign tag_use = hit ? tag_use_per_way[way_index] : (valid ? tag_use_per_way[eviction_way_index[addr]] : (invalid_found ? tag_use_per_way[invalid_index] : 0));
assign data_use = hit ? data_use_per_way[way_index] : (valid ? data_use_per_way[eviction_way_index[addr]] : (invalid_found ? data_use_per_way[invalid_index] : 0));
assign valid_use = hit ? valid_use_per_way[way_index] : (valid ? valid_use_per_way[eviction_way_index[addr]] : (invalid_found ? valid_use_per_way[invalid_index] : 0));
assign dirty_use = hit ? dirty_use_per_way[way_index] : (valid ? dirty_use_per_way[eviction_way_index[addr]] : (invalid_found ? dirty_use_per_way[invalid_index] : 0));
assign way = hit ? way_index : (valid ? eviction_way_index : (invalid_found ? invalid_index : 0));
assign tag_use = hit ? tag_use_per_way[way_index] : (valid ? tag_use_per_way[eviction_way_index] : (invalid_found ? tag_use_per_way[invalid_index] : 0));
assign data_use = hit ? data_use_per_way[way_index] : (valid ? data_use_per_way[eviction_way_index] : (invalid_found ? data_use_per_way[invalid_index] : 0));
assign valid_use = hit ? valid_use_per_way[way_index] : (valid ? valid_use_per_way[eviction_way_index] : (invalid_found ? valid_use_per_way[invalid_index] : 0));
assign dirty_use = hit ? dirty_use_per_way[way_index] : (valid ? dirty_use_per_way[eviction_way_index] : (invalid_found ? dirty_use_per_way[invalid_index] : 0));
@@ -132,11 +132,12 @@ module VX_cache_data_per_index
if (rst) begin
eviction_way_index <= 0;
end else begin
if((miss && dirty_use && valid_use && !evict && valid_in)) begin // can be either evict or invalid cache entries
if((eviction_way_index[addr]+1) == CACHE_WAYS) begin
eviction_way_index[addr] <= 0;
// if((miss && dirty_use && valid_use && !evict && valid_in)) begin // can be either evict or invalid cache entries
if((state == SEND_MEM_REQ)) begin // can be either evict or invalid cache entries
if((eviction_way_index+1) == CACHE_WAYS) begin
eviction_way_index <= 0;
end else begin
eviction_way_index[addr] <= (eviction_way_index[addr] + 1);
eviction_way_index <= (eviction_way_index + 1);
end
end
end