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snooping response handling

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This commit is contained in:
Blaise Tine
2020-05-11 22:55:44 -04:00
parent b6c4aa0baa
commit c49f01b769
36 changed files with 848 additions and 456 deletions
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74
hw/rtl/VX_dmem_ctrl.v
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@@ -12,6 +12,7 @@ module VX_dmem_ctrl (
VX_cache_dram_req_if dcache_dram_req_if,
VX_cache_dram_rsp_if dcache_dram_rsp_if,
VX_cache_snp_req_if dcache_snp_req_if,
VX_cache_snp_rsp_if dcache_snp_rsp_if,
// Core <-> Icache
VX_cache_core_req_if icache_core_req_if,
@@ -63,7 +64,7 @@ module VX_dmem_ctrl (
.DWBQ_SIZE (`SDWBQ_SIZE),
.DFQQ_SIZE (`SDFQQ_SIZE),
.LLVQ_SIZE (`SLLVQ_SIZE),
.FFSQ_SIZE (`SFFSQ_SIZE),
.SRPQ_SIZE (`SSRPQ_SIZE),
.PRFQ_SIZE (`SPRFQ_SIZE),
.PRFQ_STRIDE (`SPRFQ_STRIDE),
.FILL_INVALIDAOR_SIZE (`SFILL_INVALIDAOR_SIZE),
@@ -110,12 +111,24 @@ module VX_dmem_ctrl (
// Snoop request
.snp_req_valid (0),
.snp_req_addr (0),
.snp_req_tag (0),
.snp_req_ready (),
// Snoop forwarding
.snp_fwd_valid (),
.snp_fwd_addr (),
.snp_fwd_ready (0)
// Snoop response
.snp_rsp_valid (),
.snp_rsp_tag (),
.snp_rsp_ready (0),
// Snoop forward out
.snp_fwdout_valid (),
.snp_fwdout_addr (),
.snp_fwdout_tag (),
.snp_fwdout_ready (0),
// Snoop forward in
.snp_fwdin_valid (0),
.snp_fwdin_tag (0),
.snp_fwdin_ready ()
`IGNORE_WARNINGS_END
);
@@ -134,7 +147,7 @@ module VX_dmem_ctrl (
.DWBQ_SIZE (`DDWBQ_SIZE),
.DFQQ_SIZE (`DDFQQ_SIZE),
.LLVQ_SIZE (`DLLVQ_SIZE),
.FFSQ_SIZE (`DFFSQ_SIZE),
.SRPQ_SIZE (`DSRPQ_SIZE),
.PRFQ_SIZE (`DPRFQ_SIZE),
.PRFQ_STRIDE (`DPRFQ_STRIDE),
.FILL_INVALIDAOR_SIZE (`DFILL_INVALIDAOR_SIZE),
@@ -143,7 +156,8 @@ module VX_dmem_ctrl (
.WRITE_ENABLE (1),
.CORE_TAG_WIDTH (`CORE_REQ_TAG_WIDTH),
.CORE_TAG_ID_BITS (`CORE_TAG_ID_BITS),
.DRAM_TAG_WIDTH (`DDRAM_TAG_WIDTH)
.DRAM_TAG_WIDTH (`DDRAM_TAG_WIDTH),
.SNP_REQ_TAG_WIDTH (`DSNP_TAG_WIDTH)
) gpu_dcache (
.clk (clk),
.reset (reset),
@@ -177,16 +191,28 @@ module VX_dmem_ctrl (
.dram_rsp_tag (dcache_dram_rsp_if.dram_rsp_tag),
.dram_rsp_ready (dcache_dram_rsp_if.dram_rsp_ready),
// Snoop Request
// Snoop request
.snp_req_valid (dcache_snp_req_if.snp_req_valid),
.snp_req_addr (dcache_snp_req_if.snp_req_addr),
.snp_req_tag (dcache_snp_req_if.snp_req_tag),
.snp_req_ready (dcache_snp_req_if.snp_req_ready),
// Snoop response
.snp_rsp_valid (dcache_snp_rsp_if.snp_rsp_valid),
.snp_rsp_tag (dcache_snp_rsp_if.snp_rsp_tag),
.snp_rsp_ready (dcache_snp_rsp_if.snp_rsp_ready),
`IGNORE_WARNINGS_BEGIN
// Snoop Forward
.snp_fwd_valid (),
.snp_fwd_addr (),
.snp_fwd_ready (0)
// Snoop forward out
.snp_fwdout_valid (),
.snp_fwdout_addr (),
.snp_fwdout_tag (),
.snp_fwdout_ready (0),
// Snoop forward in
.snp_fwdin_valid (0),
.snp_fwdin_tag (0),
.snp_fwdin_ready ()
`IGNORE_WARNINGS_END
);
@@ -205,7 +231,7 @@ module VX_dmem_ctrl (
.DWBQ_SIZE (`IDWBQ_SIZE),
.DFQQ_SIZE (`IDFQQ_SIZE),
.LLVQ_SIZE (`ILLVQ_SIZE),
.FFSQ_SIZE (`IFFSQ_SIZE),
.SRPQ_SIZE (`ISRPQ_SIZE),
.PRFQ_SIZE (`IPRFQ_SIZE),
.PRFQ_STRIDE (`IPRFQ_STRIDE),
.FILL_INVALIDAOR_SIZE (`IFILL_INVALIDAOR_SIZE),
@@ -249,15 +275,27 @@ module VX_dmem_ctrl (
.dram_rsp_ready (icache_dram_rsp_if.dram_rsp_ready),
`IGNORE_WARNINGS_BEGIN
// Snoop Request
// Snoop request
.snp_req_valid (0),
.snp_req_addr (0),
.snp_req_tag (0),
.snp_req_ready (),
// Snoop Forward
.snp_fwd_valid (),
.snp_fwd_addr (),
.snp_fwd_ready (0)
// Snoop response
.snp_rsp_valid (),
.snp_rsp_tag (),
.snp_rsp_ready (0),
// Snoop forward out
.snp_fwdout_valid (),
.snp_fwdout_addr (),
.snp_fwdout_tag (),
.snp_fwdout_ready (0),
// Snoop forward in
.snp_fwdin_valid (0),
.snp_fwdin_tag (0),
.snp_fwdin_ready ()
`IGNORE_WARNINGS_END
);