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pipeline refactoring: centralized issue buffer

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This commit is contained in:
Blaise Tine
2020-07-26 11:21:08 -04:00
parent 1f63f9da25
commit 7c86b68977
62 changed files with 923 additions and 820 deletions
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86
hw/rtl/VX_define.vh
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@@ -27,12 +27,14 @@
/* verilator lint_off PINCONNECTEMPTY */ \
/* verilator lint_off WIDTH */ \
/* verilator lint_off UNOPTFLAT */ \
/* verilator lint_off UNDRIVEN */ \
/* verilator lint_off DECLFILENAME */
`define IGNORE_WARNINGS_END /* verilator lint_on UNUSED */ \
/* verilator lint_on PINCONNECTEMPTY */ \
/* verilator lint_on WIDTH */ \
/* verilator lint_on UNOPTFLAT */ \
/* verilator lint_on UNDRIVEN */ \
/* verilator lint_on DECLFILENAME */
`define UNUSED_VAR(x) /* verilator lint_off UNUSED */ \
@@ -50,6 +52,9 @@
if (!(cond)) $error(msg); \
endgenerate
`define ENABLE_TRACING /* verilator tracing_on */
`define DISABLE_TRACING /* verilator tracing_off */
`define CLOG2(x) $clog2(x)
`define FLOG2(x) ($clog2(x) - (((1 << $clog2(x)) > (x)) ? 1 : 0))
`define LOG2UP(x) (((x) > 1) ? $clog2(x) : 1)
@@ -80,8 +85,9 @@
`define CSR_WIDTH 12
`define LATENCY_IDIV 21
`define ISTAG_BITS `LOG2UP(`ISSUEQ_SIZE)
`define LATENCY_IDIV 21
`define LATENCY_IMUL 2
`define LATENCY_FMULADD 2
@@ -259,19 +265,31 @@
///////////////////////////////////////////////////////////////////////////////
`ifdef EXT_M_ENABLE
`define ISA_EXT_M (1 << 12)
`else
`define ISA_EXT_M 0
`endif
`ifdef EXT_F_ENABLE
`define ISA_EXT_F (1 << 5)
`else
`define ISA_EXT_F 0
`endif
`define ISA_CODE (0 << 0) // A - Atomic Instructions extension \
| (0 << 1) // B - Tentatively reserved for Bit operations extension \
| (0 << 2) // C - Compressed extension \
| (0 << 3) // D - Double precsision floating-point extension \
| (0 << 4) // E - RV32E base ISA \
| (`EXT_F_ENABLE << 5) // F - Single precsision floating-point extension \
|`ISA_EXT_F // F - Single precsision floating-point extension \
| (0 << 6) // G - Additional standard extensions present \
| (0 << 7) // H - Hypervisor mode implemented \
| (1 << 8) // I - RV32I/64I/128I base ISA \
| (0 << 9) // J - Reserved \
| (0 << 10) // K - Reserved \
| (0 << 11) // L - Tentatively reserved for Bit operations extension \
| (`EXT_M_ENABLE << 12) // M - Integer Multiply/Divide extension \
|`ISA_EXT_M // M - Integer Multiply/Divide extension \
| (0 << 13) // N - User level interrupts supported \
| (0 << 14) // O - Reserved \
| (0 << 15) // P - Tentatively reserved for Packed-SIMD extension \
@@ -288,7 +306,7 @@
///////////////////////////////////////////////////////////////////////////////
`ifdef DBG_CORE_REQ_INFO // pc, wb, rd, warp_num
`ifdef DBG_CORE_REQ_INFO // pc, wb, rd, warp_num
`define DEBUG_CORE_REQ_MDATA_WIDTH (32 + 1 + `NR_BITS + `NW_BITS)
`else
`define DEBUG_CORE_REQ_MDATA_WIDTH 0
@@ -300,7 +318,7 @@
`define DCACHE_ID (((`L3_ENABLE && `L2_ENABLE) ? 2 : `L2_ENABLE ? 1 : 0) + (CORE_ID * 3) + 0)
// TAG sharing enable
`define DCORE_TAG_ID_BITS `LOG2UP(`DCREQ_SIZE)
`define DCORE_TAG_ID_BITS `ISTAG_BITS
// Core request tag bits
`define DCORE_TAG_WIDTH (`DEBUG_CORE_REQ_MDATA_WIDTH + `DCORE_TAG_ID_BITS)
@@ -335,7 +353,7 @@
`define ICORE_BYTEEN_WIDTH `DWORD_SIZE
// TAG sharing enable
`define ICORE_TAG_ID_BITS `LOG2UP(`ICREQ_SIZE)
`define ICORE_TAG_ID_BITS `NW_BITS
// Core request tag bits
`define ICORE_TAG_WIDTH (`DEBUG_CORE_REQ_MDATA_WIDTH + `ICORE_TAG_ID_BITS)
@@ -438,8 +456,6 @@
///////////////////////////////////////////////////////////////////////////////
task print_ex_type;
input [`EX_BITS-1:0] ex;
begin
@@ -488,20 +504,7 @@ task print_instr_op;
`ALU_DRET: $write("DRET");
default: $write("?");
endcase
end
`EX_MUL: begin
case (`MUL_BITS'(op))
`MUL_MUL: $write("MUL");
`MUL_MULH: $write("MULH");
`MUL_MULHSU:$write("MULHSU");
`MUL_MULHU: $write("MULHU");
`MUL_DIV: $write("DIV");
`MUL_DIVU: $write("DIVU");
`MUL_REM: $write("REM");
`MUL_REMU: $write("REMU");
default: $write("?");
endcase
end
end
`EX_LSU: begin
case (`LSU_BITS'(op))
`LSU_LB: $write("LB");
@@ -525,6 +528,45 @@ task print_instr_op;
default: $write("?");
endcase
end
`EX_MUL: begin
case (`MUL_BITS'(op))
`MUL_MUL: $write("MUL");
`MUL_MULH: $write("MULH");
`MUL_MULHSU:$write("MULHSU");
`MUL_MULHU: $write("MULHU");
`MUL_DIV: $write("DIV");
`MUL_DIVU: $write("DIVU");
`MUL_REM: $write("REM");
`MUL_REMU: $write("REMU");
default: $write("?");
endcase
end
`EX_FPU: begin
case (`FPU_BITS'(op))
`FPU_ADD: $write("ADD");
`FPU_SUB: $write("SUB");
`FPU_MUL: $write("MUL");
`FPU_DIV: $write("DIV");
`FPU_SQRT: $write("SQRT");
`FPU_MADD: $write("MADD");
`FPU_NMSUB: $write("NMSUB");
`FPU_NMADD: $write("NMADD");
`FPU_SGNJ: $write("SGNJ");
`FPU_SGNJN: $write("SGNJN");
`FPU_SGNJX: $write("SGNJX");
`FPU_MIN: $write("MIN");
`FPU_MAX: $write("MAX");
`FPU_CVTWS: $write("CVTWS");
`FPU_CVTWUS:$write("CVTWUS");
`FPU_CVTSW: $write("CVTSW");
`FPU_CVTSWU:$write("CVTSWU");
`FPU_MVXW: $write("MVXW");
`FPU_MVWX: $write("MVWX");
`FPU_CLASS: $write("CLASS");
`FPU_CMP: $write("CMP");
default: $write("?");
endcase
end
`EX_GPU: begin
case (`GPU_BITS'(op))
`GPU_TMC: $write("TMC");