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texture unit dcache arbitration

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This commit is contained in:
Blaise Tine
2021-03-18 14:23:53 -04:00
parent 6febdf7399
commit 124acfbf12
14 changed files with 606 additions and 115 deletions
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154
hw/rtl/VX_execute.v
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@@ -47,7 +47,74 @@ module VX_execute #(
VX_fpu_to_csr_if fpu_to_csr_if();
`ifdef EXT_TEX_ENABLE
VX_dcache_core_req_if #(
.LANES(`NUM_THREADS),
.WORD_SIZE(4),
.CORE_TAG_WIDTH(`LSU_TAG_WIDTH)
) tex_dcache_req_if();
VX_dcache_core_rsp_if #(
.LANES(`NUM_THREADS),
.WORD_SIZE(4),
.CORE_TAG_WIDTH(`LSU_TAG_WIDTH)
) tex_dcache_rsp_if();
VX_dcache_core_req_if #(
.LANES(`NUM_THREADS),
.WORD_SIZE(4),
.CORE_TAG_WIDTH(`LSU_TAG_WIDTH)
) lsu_dcache_req_if();
VX_dcache_core_rsp_if #(
.LANES(`NUM_THREADS),
.WORD_SIZE(4),
.CORE_TAG_WIDTH(`LSU_TAG_WIDTH)
) lsu_dcache_rsp_if();
VX_tex_csr_if tex_csr_if();
VX_tex_lsu_arb #(
.NUM_REQS (2),
.LANES (`NUM_THREADS),
.WORD_SIZE (4),
.TAG_IN_WIDTH (`LSU_TAG_WIDTH),
.TAG_OUT_WIDTH (`DCORE_TAG_WIDTH)
) tex_lsu_arb (
.clk (clk),
.reset (reset),
// Tex/LSU request
.req_valid_in ({tex_dcache_req_if.valid, lsu_dcache_req_if.valid}),
.req_rw_in ({tex_dcache_req_if.rw, lsu_dcache_req_if.rw}),
.req_byteen_in ({tex_dcache_req_if.byteen, lsu_dcache_req_if.byteen}),
.req_addr_in ({tex_dcache_req_if.addr, lsu_dcache_req_if.addr}),
.req_data_in ({tex_dcache_req_if.data, lsu_dcache_req_if.data}),
.req_tag_in ({tex_dcache_req_if.tag, lsu_dcache_req_if.tag}),
.req_ready_in ({tex_dcache_req_if.ready, lsu_dcache_req_if.ready}),
// Dcache request
.req_valid_out (dcache_req_if.valid),
.req_rw_out (dcache_req_if.rw),
.req_byteen_out (dcache_req_if.byteen),
.req_addr_out (dcache_req_if.addr),
.req_data_out (dcache_req_if.data),
.req_tag_out (dcache_req_if.tag),
.req_ready_out (dcache_req_if.ready),
// Tex/LSU response
.rsp_valid_out ({tex_dcache_rsp_if.valid, lsu_dcache_rsp_if.valid}),
.rsp_data_out ({tex_dcache_rsp_if.data, lsu_dcache_rsp_if.data}),
.rsp_tag_out ({tex_dcache_rsp_if.tag, lsu_dcache_rsp_if.tag}),
.rsp_ready_out ({tex_dcache_rsp_if.ready, lsu_dcache_rsp_if.ready}),
// Dcache response
.rsp_valid_in (dcache_rsp_if.valid),
.rsp_tag_in (dcache_rsp_if.tag),
.rsp_data_in (dcache_rsp_if.data),
.rsp_ready_in (dcache_rsp_if.ready)
);
`endif
wire[`NUM_WARPS-1:0] csr_pending;
@@ -63,105 +130,24 @@ module VX_execute #(
.alu_commit_if (alu_commit_if)
);
`ifdef EXT_TEX_ENABLE
VX_dcache_core_req_if #(
.NUM_REQS(`NUM_THREADS),
.WORD_SIZE(4),
.CORE_TAG_WIDTH(`DCORE_TAG_WIDTH)
) tex_dcache_req_if();
VX_dcache_core_rsp_if #(
.NUM_REQS(`NUM_THREADS),
.WORD_SIZE(4),
.CORE_TAG_WIDTH(`DCORE_TAG_WIDTH)
) tex_dcache_rsp_if();
VX_dcache_core_req_if #(
.NUM_REQS(`NUM_THREADS),
.WORD_SIZE(4),
.CORE_TAG_WIDTH(`DCORE_TAG_WIDTH)
) lsu_dcache_req_if();
VX_dcache_core_rsp_if #(
.NUM_REQS(`NUM_THREADS),
.WORD_SIZE(4),
.CORE_TAG_WIDTH(`DCORE_TAG_WIDTH)
) lsu_dcache_rsp_if();
VX_mem_arb #(
.NUM_REQS (2),
.DATA_WIDTH (`WORD_WIDTH),
.TAG_IN_WIDTH (`DCORE_TAG_WIDTH),
.TAG_OUT_WIDTH (`DCORE_TAG_WIDTH),
.BUFFERED_REQ (0),
.BUFFERED_RSP (0)
) dcache_arb (
.clk (clk),
.reset (reset),
// Tex/LSU request
.req_valid_in ({tex_dcache_req_if.valid, lsu_dcache_req_if.valid}),
.req_rw_in ({tex_dcache_req_if.rw, lsu_dcache_req_if.rw}),
.req_byteen_in ({tex_dcache_req_if.byteen, lsu_dcache_req_if.byteen}),
.req_addr_in ({tex_dcache_req_if.addr, lsu_dcache_req_if.addr}),
.req_data_in ({tex_dcache_req_if.data, lsu_dcache_req_if.data}),
.req_tag_in ({tex_dcache_req_if.tag, lsu_dcache_req_if.tag}),
.req_ready_in ({tex_dcache_req_if.ready, lsu_dcache_req_if.ready}),
// Dcache request
.req_valid_out (dcache_req_if.valid),
.req_rw_out (dcache_req_if.rw),
.req_byteen_out (dcache_req_if.byteen),
.req_addr_out (dcache_req_if.addr),
.req_data_out (dcache_req_if.data),
.req_tag_out (dcache_req_if.tag),
.req_ready_out (dcache_req_if.ready),
// Tex/LSU response
.rsp_valid_out ({tex_dcache_rsp_if.valid, lsu_dcache_rsp_if.valid}),
.rsp_data_out ({tex_dcache_rsp_if.data, lsu_dcache_rsp_if.data}),
.rsp_tag_out ({tex_dcache_rsp_if.tag, lsu_dcache_rsp_if.tag}),
.rsp_ready_out ({tex_dcache_rsp_if.ready, lsu_dcache_rsp_if.ready}),
// Dcache response
.rsp_valid_in (dcache_rsp_if.valid),
.rsp_tag_in (dcache_rsp_if.tag),
.rsp_data_in (dcache_rsp_if.data),
.rsp_ready_in (dcache_rsp_if.ready)
);
VX_lsu_unit #(
.CORE_ID(CORE_ID)
) lsu_unit (
`SCOPE_BIND_VX_execute_lsu_unit
.clk (clk),
.reset (reset),
`ifdef EXT_TEX_ENABLE
.dcache_req_if (lsu_dcache_req_if),
.dcache_rsp_if (lsu_dcache_rsp_if),
.lsu_req_if (lsu_req_if),
.ld_commit_if (ld_commit_if),
.st_commit_if (st_commit_if)
);
`else
VX_lsu_unit #(
.CORE_ID(CORE_ID)
) lsu_unit (
`SCOPE_BIND_VX_execute_lsu_unit
.clk (clk),
.reset (reset),
`else
.dcache_req_if (dcache_req_if),
.dcache_rsp_if (dcache_rsp_if),
`endif
.lsu_req_if (lsu_req_if),
.ld_commit_if (ld_commit_if),
.st_commit_if (st_commit_if)
);
`endif
VX_csr_unit #(
.CORE_ID(CORE_ID)
) csr_unit (