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f315a8a44d5105537688caabd7f3f009e5729621
kernels/rtl/VX_dmem_controller.v
felsabbagh3 f315a8a44d Icache working
2020-03-08 13:59:35 -07:00

238 lines
8.8 KiB
Verilog
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`include "VX_define.v"
module VX_dmem_controller (
input wire clk,
input wire reset,
// Dram <-> Dcache
VX_gpu_dcache_dram_req_inter VX_gpu_dcache_dram_req,
VX_gpu_dcache_dram_res_inter VX_gpu_dcache_dram_res,
// Dram <-> Icache
VX_gpu_dcache_dram_req_inter VX_gpu_icache_dram_req,
VX_gpu_dcache_dram_res_inter VX_gpu_icache_dram_res,
// Core <-> Dcache
VX_gpu_dcache_res_inter VX_dcache_rsp,
VX_gpu_dcache_req_inter VX_dcache_req,
// Core <-> Icache
VX_gpu_dcache_res_inter VX_icache_rsp,
VX_gpu_dcache_req_inter VX_icache_req
);
wire to_shm = VX_dcache_req.core_req_addr[0][31:24] == 8'hFF;
wire[`NT_M1:0] cache_driver_in_valid = VX_dcache_req.core_req_valid & {`NT{~to_shm}};
wire[`NT_M1:0] sm_driver_in_valid = VX_dcache_req.core_req_valid & {`NT{to_shm}};
wire[2:0] sm_driver_in_mem_read = !(|sm_driver_in_valid) ? `NO_MEM_READ : VX_dcache_req.core_req_mem_read;
wire[2:0] sm_driver_in_mem_write = !(|sm_driver_in_valid) ? `NO_MEM_WRITE : VX_dcache_req.core_req_mem_write;
wire[`NT_M1:0][31:0] cache_driver_out_data;
wire[`NT_M1:0][31:0] sm_driver_out_data;
wire[`NT_M1:0] cache_driver_out_valid; // Not used for now
wire sm_delay;
VX_shared_memory #(
.SM_SIZE (`SHARED_MEMORY_SIZE),
.SM_BANKS (`SHARED_MEMORY_BANKS),
.SM_BYTES_PER_READ (`SHARED_MEMORY_BYTES_PER_READ),
.SM_WORDS_PER_READ (`SHARED_MEMORY_WORDS_PER_READ),
.SM_LOG_WORDS_PER_READ (`SHARED_MEMORY_LOG_WORDS_PER_READ),
.SM_BANK_OFFSET_START (`SHARED_MEMORY_BANK_OFFSET_ST),
.SM_BANK_OFFSET_END (`SHARED_MEMORY_BANK_OFFSET_ED),
.SM_BLOCK_OFFSET_START (`SHARED_MEMORY_BLOCK_OFFSET_ST),
.SM_BLOCK_OFFSET_END (`SHARED_MEMORY_BLOCK_OFFSET_ED),
.SM_INDEX_START (`SHARED_MEMORY_INDEX_OFFSET_ST),
.SM_INDEX_END (`SHARED_MEMORY_INDEX_OFFSET_ED),
.SM_HEIGHT (`SHARED_MEMORY_HEIGHT),
.NUM_REQ (`SHARED_MEMORY_NUM_REQ),
.BITS_PER_BANK (`SHARED_MEMORY_BITS_PER_BANK)
)
shared_memory
(
.clk (clk),
.reset (reset),
.in_valid (sm_driver_in_valid),
.in_address(VX_dcache_req.core_req_addr),
.in_data (VX_dcache_req.core_req_writedata),
.mem_read (sm_driver_in_mem_read),
.mem_write (sm_driver_in_mem_write),
.out_valid (cache_driver_out_valid),
.out_data (sm_driver_out_data),
.stall (sm_delay)
);
wire Dllvq_pop;
wire[`DNUMBER_REQUESTS-1:0] Dllvq_valid;
wire[`DNUMBER_REQUESTS-1:0][31:0] Dllvq_res_addr;
wire[`DNUMBER_REQUESTS-1:0][`DBANK_LINE_SIZE_RNG][31:0] Dllvq_res_data;
assign Dllvq_pop = 0;
VX_cache #(
.CACHE_SIZE_BYTES (`DCACHE_SIZE_BYTES),
.BANK_LINE_SIZE_BYTES (`DBANK_LINE_SIZE_BYTES),
.NUMBER_BANKS (`DNUMBER_BANKS),
.WORD_SIZE_BYTES (`DWORD_SIZE_BYTES),
.NUMBER_REQUESTS (`DNUMBER_REQUESTS),
.STAGE_1_CYCLES (`DSTAGE_1_CYCLES),
.REQQ_SIZE (`DREQQ_SIZE),
.MRVQ_SIZE (`DMRVQ_SIZE),
.DFPQ_SIZE (`DDFPQ_SIZE),
.SNRQ_SIZE (`DSNRQ_SIZE),
.CWBQ_SIZE (`DCWBQ_SIZE),
.DWBQ_SIZE (`DDWBQ_SIZE),
.DFQQ_SIZE (`DDFQQ_SIZE),
.LLVQ_SIZE (`DLLVQ_SIZE),
.FILL_INVALIDAOR_SIZE (`DFILL_INVALIDAOR_SIZE),
.SIMULATED_DRAM_LATENCY_CYCLES(`DSIMULATED_DRAM_LATENCY_CYCLES)
)
gpu_dcache
(
.clk (clk),
.reset (reset),
// Core req
.core_req_valid (cache_driver_in_valid),
.core_req_addr (VX_dcache_req.core_req_addr),
.core_req_writedata(VX_dcache_req.core_req_writedata),
.core_req_mem_read (VX_dcache_req.core_req_mem_read),
.core_req_mem_write(VX_dcache_req.core_req_mem_write),
.core_req_rd (VX_dcache_req.core_req_rd),
.core_req_wb (VX_dcache_req.core_req_wb),
.core_req_warp_num (VX_dcache_req.core_req_warp_num),
.core_req_pc (VX_dcache_req.core_req_pc),
// Delay Core Req
.delay_req (VX_dcache_rsp.delay_req),
// Core Cache Can't WB
.core_no_wb_slot (VX_dcache_req.core_no_wb_slot),
// Cache CWB
.core_wb_valid (VX_dcache_rsp.core_wb_valid),
.core_wb_req_rd (VX_dcache_rsp.core_wb_req_rd),
.core_wb_req_wb (VX_dcache_rsp.core_wb_req_wb),
.core_wb_warp_num (VX_dcache_rsp.core_wb_warp_num),
.core_wb_readdata (VX_dcache_rsp.core_wb_readdata),
.core_wb_pc (VX_dcache_rsp.core_wb_pc),
// DRAM response
.dram_fill_rsp (VX_gpu_dcache_dram_res.dram_fill_rsp),
.dram_fill_rsp_addr(VX_gpu_dcache_dram_res.dram_fill_rsp_addr),
.dram_fill_rsp_data(VX_gpu_dcache_dram_res.dram_fill_rsp_data),
// DRAM accept response
.dram_fill_accept (VX_gpu_dcache_dram_req.dram_fill_accept),
// DRAM Req
.dram_req (VX_gpu_dcache_dram_req.dram_req),
.dram_req_write (VX_gpu_dcache_dram_req.dram_req_write),
.dram_req_read (VX_gpu_dcache_dram_req.dram_req_read),
.dram_req_addr (VX_gpu_dcache_dram_req.dram_req_addr),
.dram_req_size (VX_gpu_dcache_dram_req.dram_req_size),
.dram_req_data (VX_gpu_dcache_dram_req.dram_req_data),
// Snoop Response
.dram_req_because_of_wb(VX_gpu_dcache_dram_req.dram_because_of_snp),
.dram_snp_full (VX_gpu_dcache_dram_req.dram_snp_full),
// Snoop Request
.snp_req (0),
.snp_req_addr (0),
// LLVQ stuff
.llvq_pop (Dllvq_pop),
.llvq_valid (Dllvq_valid),
.llvq_res_addr (Dllvq_res_addr),
.llvq_res_data (Dllvq_res_data)
);
VX_cache #(
.CACHE_SIZE_BYTES (`ICACHE_SIZE_BYTES),
.BANK_LINE_SIZE_BYTES (`IBANK_LINE_SIZE_BYTES),
.NUMBER_BANKS (`INUMBER_BANKS),
.WORD_SIZE_BYTES (`IWORD_SIZE_BYTES),
.NUMBER_REQUESTS (`INUMBER_REQUESTS),
.STAGE_1_CYCLES (`ISTAGE_1_CYCLES),
.REQQ_SIZE (`IREQQ_SIZE),
.MRVQ_SIZE (`IMRVQ_SIZE),
.DFPQ_SIZE (`IDFPQ_SIZE),
.SNRQ_SIZE (`ISNRQ_SIZE),
.CWBQ_SIZE (`ICWBQ_SIZE),
.DWBQ_SIZE (`IDWBQ_SIZE),
.DFQQ_SIZE (`IDFQQ_SIZE),
.LLVQ_SIZE (`ILLVQ_SIZE),
.FILL_INVALIDAOR_SIZE (`IFILL_INVALIDAOR_SIZE),
.SIMULATED_DRAM_LATENCY_CYCLES(`ISIMULATED_DRAM_LATENCY_CYCLES)
)
gpu_icache
(
.clk (clk),
.reset (reset),
// Core req
.core_req_valid (VX_icache_req.core_req_valid),
.core_req_addr (VX_icache_req.core_req_addr),
.core_req_writedata(VX_icache_req.core_req_writedata),
.core_req_mem_read (VX_icache_req.core_req_mem_read),
.core_req_mem_write(VX_icache_req.core_req_mem_write),
.core_req_rd (VX_icache_req.core_req_rd),
.core_req_wb (VX_icache_req.core_req_wb),
.core_req_warp_num (VX_icache_req.core_req_warp_num),
.core_req_pc (VX_icache_req.core_req_pc),
// Delay Core Req
.delay_req (VX_icache_rsp.delay_req),
// Core Cache Can't WB
.core_no_wb_slot (VX_icache_req.core_no_wb_slot),
// Cache CWB
.core_wb_valid (VX_icache_rsp.core_wb_valid),
.core_wb_req_rd (VX_icache_rsp.core_wb_req_rd),
.core_wb_req_wb (VX_icache_rsp.core_wb_req_wb),
.core_wb_warp_num (VX_icache_rsp.core_wb_warp_num),
.core_wb_readdata (VX_icache_rsp.core_wb_readdata),
.core_wb_pc (VX_icache_rsp.core_wb_pc),
// DRAM response
.dram_fill_rsp (VX_gpu_icache_dram_res.dram_fill_rsp),
.dram_fill_rsp_addr(VX_gpu_icache_dram_res.dram_fill_rsp_addr),
.dram_fill_rsp_data(VX_gpu_icache_dram_res.dram_fill_rsp_data),
// DRAM accept response
.dram_fill_accept (VX_gpu_icache_dram_req.dram_fill_accept),
// DRAM Req
.dram_req (VX_gpu_icache_dram_req.dram_req),
.dram_req_write (VX_gpu_icache_dram_req.dram_req_write),
.dram_req_read (VX_gpu_icache_dram_req.dram_req_read),
.dram_req_addr (VX_gpu_icache_dram_req.dram_req_addr),
.dram_req_size (VX_gpu_icache_dram_req.dram_req_size),
.dram_req_data (VX_gpu_icache_dram_req.dram_req_data),
// Snoop Response
.dram_req_because_of_wb(VX_gpu_icache_dram_req.dram_because_of_snp),
.dram_snp_full (VX_gpu_icache_dram_req.dram_snp_full),
// Snoop Request
.snp_req (0),
.snp_req_addr (0),
// LLVQ stuff
.llvq_pop (Dllvq_pop),
.llvq_valid (Dllvq_valid),
.llvq_res_addr (Dllvq_res_addr),
.llvq_res_data (Dllvq_res_data)
);
endmodule
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