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added support for write-through cache, removed cache snooping support

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This commit is contained in:
Blaise Tine
2020-12-23 23:51:02 -08:00
parent d956e268b9
commit 703a861fe9
55 changed files with 1077 additions and 2178 deletions
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54
hw/rtl/VX_mem_unit.v
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@@ -20,10 +20,6 @@ module VX_mem_unit # (
VX_cache_core_req_if core_icache_req_if,
VX_cache_core_rsp_if core_icache_rsp_if,
// Dcache Snoop
VX_cache_snp_req_if dcache_snp_req_if,
VX_cache_snp_rsp_if dcache_snp_rsp_if,
// DRAM
VX_cache_dram_req_if dram_req_if,
VX_cache_dram_rsp_if dram_rsp_if
@@ -95,12 +91,9 @@ module VX_mem_unit # (
.CREQ_SIZE (`ICREQ_SIZE),
.MSHR_SIZE (`IMSHR_SIZE),
.DRSQ_SIZE (`IDRSQ_SIZE),
.SREQ_SIZE (1),
.CRSQ_SIZE (`ICRSQ_SIZE),
.DREQ_SIZE (`IDREQ_SIZE),
.SRSQ_SIZE (1),
.DRAM_ENABLE (1),
.FLUSH_ENABLE (0),
.WRITE_ENABLE (0),
.CORE_TAG_WIDTH (`ICORE_TAG_WIDTH),
.CORE_TAG_ID_BITS (`ICORE_TAG_ID_BITS),
@@ -145,18 +138,6 @@ module VX_mem_unit # (
.dram_rsp_tag (icache_dram_rsp_if.tag),
.dram_rsp_ready (icache_dram_rsp_if.ready),
// Snoop request
.snp_req_valid (1'b0),
.snp_req_addr (0),
.snp_req_inv (1'b0),
.snp_req_tag (0),
`UNUSED_PIN (snp_req_ready),
// Snoop response
`UNUSED_PIN (snp_rsp_valid),
`UNUSED_PIN (snp_rsp_tag),
.snp_rsp_ready (1'b0),
// Miss status
`UNUSED_PIN (miss_vec)
);
@@ -171,17 +152,13 @@ module VX_mem_unit # (
.CREQ_SIZE (`DCREQ_SIZE),
.MSHR_SIZE (`DMSHR_SIZE),
.DRSQ_SIZE (`DDRSQ_SIZE),
.SREQ_SIZE (`DSREQ_SIZE),
.CRSQ_SIZE (`DCRSQ_SIZE),
.DREQ_SIZE (`DDREQ_SIZE),
.SRSQ_SIZE (`DSRSQ_SIZE),
.DREQ_SIZE (`DDREQ_SIZE),
.DRAM_ENABLE (1),
.FLUSH_ENABLE (1),
.WRITE_ENABLE (1),
.CORE_TAG_WIDTH (`DCORE_TAG_WIDTH),
.CORE_TAG_ID_BITS (`DCORE_TAG_ID_BITS),
.DRAM_TAG_WIDTH (`DDRAM_TAG_WIDTH),
.SNP_TAG_WIDTH (`DSNP_TAG_WIDTH)
.DRAM_TAG_WIDTH (`DDRAM_TAG_WIDTH)
) dcache (
`SCOPE_BIND_VX_mem_unit_dcache
@@ -222,18 +199,6 @@ module VX_mem_unit # (
.dram_rsp_tag (dcache_dram_rsp_if.tag),
.dram_rsp_ready (dcache_dram_rsp_if.ready),
// Snoop request
.snp_req_valid (dcache_snp_req_if.valid),
.snp_req_addr (dcache_snp_req_if.addr),
.snp_req_inv (dcache_snp_req_if.invalidate),
.snp_req_tag (dcache_snp_req_if.tag),
.snp_req_ready (dcache_snp_req_if.ready),
// Snoop response
.snp_rsp_valid (dcache_snp_rsp_if.valid),
.snp_rsp_tag (dcache_snp_rsp_if.tag),
.snp_rsp_ready (dcache_snp_rsp_if.ready),
// Miss status
`UNUSED_PIN (miss_vec)
);
@@ -250,12 +215,9 @@ module VX_mem_unit # (
.CREQ_SIZE (`SCREQ_SIZE),
.MSHR_SIZE (8),
.DRSQ_SIZE (1),
.SREQ_SIZE (1),
.CRSQ_SIZE (`SCRSQ_SIZE),
.DREQ_SIZE (1),
.SRSQ_SIZE (1),
.DRAM_ENABLE (0),
.FLUSH_ENABLE (0),
.WRITE_ENABLE (1),
.CORE_TAG_WIDTH (`DCORE_TAG_WIDTH),
.CORE_TAG_ID_BITS (`DCORE_TAG_ID_BITS),
@@ -300,18 +262,6 @@ module VX_mem_unit # (
.dram_rsp_tag (0),
`UNUSED_PIN (dram_rsp_ready),
// Snoop request
.snp_req_valid (1'b0),
.snp_req_addr (0),
.snp_req_inv (0),
.snp_req_tag (0),
`UNUSED_PIN (snp_req_ready),
// Snoop response
`UNUSED_PIN (snp_rsp_valid),
`UNUSED_PIN (snp_rsp_tag),
.snp_rsp_ready (1'b0),
// Miss status
`UNUSED_PIN (miss_vec)
);