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Merge remote-tracking branch 'origin/master' into xc7mux

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Eddie Hung 2019-05-02 10:44:59 -07:00
commit 5cd19b52da
23 changed files with 312 additions and 221 deletions
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8
techlibs/xilinx/cells_map.v
View file

@ -17,6 +17,14 @@
*
*/
// Convert negative-polarity reset to positive-polarity
module \$_DFF_NN0_ (input D, C, R, output Q); \$_DFF_NP0_ _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .R(~R)); endmodule
module \$_DFF_PN0_ (input D, C, R, output Q); \$_DFF_PP0_ _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .R(~R)); endmodule
module \$_DFF_NN1_ (input D, C, R, output Q); \$_DFF_NP1 _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .R(~R)); endmodule
module \$_DFF_PN1_ (input D, C, R, output Q); \$_DFF_PP1 _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .R(~R)); endmodule
module \$__SHREG_ (input C, input D, input E, output Q);
parameter DEPTH = 0;
parameter [DEPTH-1:0] INIT = 0;

13
techlibs/xilinx/ff_map.v
View file

@ -22,26 +22,21 @@
`ifndef _NO_FFS
`ifndef _NO_POS_SR
module \$_DFF_N_ (input D, C, output Q); FDRE_1 #(.INIT(|0)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .R(1'b0)); endmodule
module \$_DFF_P_ (input D, C, output Q); FDRE #(.INIT(|0)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .R(1'b0)); endmodule
module \$_DFFE_NP_ (input D, C, E, output Q); FDRE_1 #(.INIT(|0)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(E), .R(1'b0)); endmodule
module \$_DFFE_PP_ (input D, C, E, output Q); FDRE #(.INIT(|0)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(E), .R(1'b0)); endmodule
module \$_DFF_NN0_ (input D, C, R, output Q); FDCE_1 #(.INIT(|0)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .CLR(!R)); endmodule
module \$_DFF_NP0_ (input D, C, R, output Q); FDCE_1 #(.INIT(|0)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .CLR( R)); endmodule
module \$_DFF_PN0_ (input D, C, R, output Q); FDCE #(.INIT(|0)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .CLR(!R)); endmodule
module \$_DFF_PP0_ (input D, C, R, output Q); FDCE #(.INIT(|0)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .CLR( R)); endmodule
module \$_DFF_NN1_ (input D, C, R, output Q); FDPE_1 #(.INIT(|0)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .PRE(!R)); endmodule
module \$_DFF_NP1_ (input D, C, R, output Q); FDPE_1 #(.INIT(|0)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .PRE( R)); endmodule
module \$_DFF_PN1_ (input D, C, R, output Q); FDPE #(.INIT(|0)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .PRE(!R)); endmodule
module \$_DFF_PP1_ (input D, C, R, output Q); FDPE #(.INIT(|0)) _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .CE(1'b1), .PRE( R)); endmodule
`endif
module \$_DFF_NN0_ (input D, C, R, output Q); \$_DFF_NP0_ _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .R(~R)); endmodule
module \$_DFF_PN0_ (input D, C, R, output Q); \$_DFF_PP0_ _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .R(~R)); endmodule
module \$_DFF_NN1_ (input D, C, R, output Q); \$_DFF_NP1 _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .R(~R)); endmodule
module \$_DFF_PN1_ (input D, C, R, output Q); \$_DFF_PP1 _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .R(~R)); endmodule
`endif
`endif

275
techlibs/xilinx/synth_xilinx.cc
View file

@ -25,18 +25,9 @@
USING_YOSYS_NAMESPACE
PRIVATE_NAMESPACE_BEGIN
bool check_label(bool &active, std::string run_from, std::string run_to, std::string label)
struct SynthXilinxPass : public ScriptPass
{
if (label == run_from)
active = true;
if (label == run_to)
active = false;
return active;
}
struct SynthXilinxPass : public Pass
{
SynthXilinxPass() : Pass("synth_xilinx", "synthesis for Xilinx FPGAs") { }
SynthXilinxPass() : ScriptPass("synth_xilinx", "synthesis for Xilinx FPGAs") { }
void help() YS_OVERRIDE
{
@ -94,81 +85,32 @@ struct SynthXilinxPass : public Pass
log("\n");
log("\n");
log("The following commands are executed by this synthesis command:\n");
log("\n");
log(" begin:\n");
log(" read_verilog -lib +/xilinx/cells_sim.v\n");
log(" read_verilog -lib +/xilinx/cells_xtra.v\n");
log(" read_verilog -lib +/xilinx/brams_bb.v\n");
log(" hierarchy -check -top <top>\n");
log("\n");
log(" flatten: (only if -flatten)\n");
log(" proc\n");
log(" flatten\n");
log("\n");
log(" coarse:\n");
log(" synth -run coarse\n");
log("\n");
log(" bram: (only executed when '-nobram' is not given)\n");
log(" memory_bram -rules +/xilinx/brams.txt\n");
log(" techmap -map +/xilinx/brams_map.v\n");
log("\n");
log(" dram: (only executed when '-nodram' is not given)\n");
log(" memory_bram -rules +/xilinx/drams.txt\n");
log(" techmap -map +/xilinx/drams_map.v\n");
log("\n");
log(" fine:\n");
log(" opt -fast\n");
log(" memory_map\n");
log(" dffsr2dff\n");
log(" dff2dffe\n");
log(" techmap -map +/xilinx/arith_map.v (without '-nocarry' only)\n");
log(" opt -fast\n");
log("\n");
log(" map_cells:\n");
log(" pmux2shiftx (without '-nosrl' and '-nomux' only)\n");
log(" simplemap t:$dff t:$dffe (without '-nosrl' only)\n");
log(" opt_expr -mux_undef (without '-nosrl' only)\n");
log(" shregmap -tech xilinx -minlen 3 (without '-nosrl' only)\n");
log(" techmap -map +/xilinx/cells_map.v\n");
log(" clean\n");
log("\n");
log(" map_luts:\n");
log(" opt -full\n");
log(" techmap -map +/techmap.v -D _NO_POS_SR -map +/xilinx/ff_map.v\n");
log(" abc -luts 2:2,3,6:5,10,20 [-dff]\n");
log(" clean\n");
log(" shregmap -minlen 3 -init -params -enpol any_or_none (without '-nosrl' only)\n");
log(" techmap -map +/xilinx/lut_map.v -map +/xilinx/ff_map.v -map +/xilinx/cells_map.v\n");
log(" dffinit -ff FDRE Q INIT -ff FDCE Q INIT -ff FDPE Q INIT -ff FDSE Q INIT \\\n");
log(" -ff FDRE_1 Q INIT -ff FDCE_1 Q INIT -ff FDPE_1 Q INIT -ff FDSE_1 Q INIT\n");
log("\n");
log(" check:\n");
log(" hierarchy -check\n");
log(" stat\n");
log(" check -noinit\n");
log("\n");
log(" edif: (only if -edif)\n");
log(" write_edif <file-name>\n");
log("\n");
log(" blif: (only if -blif)\n");
log(" write_blif <file-name>\n");
help_script();
log("\n");
}
std::string top_opt, edif_file, blif_file, abc;
bool flatten, retime, vpr, nocarry, nobram, nodram, nosrl, nomux;
void clear_flags() YS_OVERRIDE
{
top_opt = "-auto-top";
edif_file.clear();
blif_file.clear();
abc = "abc";
flatten = false;
retime = false;
vpr = false;
nobram = false;
nodram = false;
nosrl = false;
nomux = false;
}
void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE
{
std::string top_opt = "-auto-top";
std::string edif_file;
std::string blif_file;
std::string run_from, run_to;
std::string abc = "abc";
bool flatten = false;
bool retime = false;
bool vpr = false;
bool nocarry = false;
bool nobram = false;
bool nodram = false;
bool nosrl = false;
bool nomux = false;
clear_flags();
size_t argidx;
for (argidx = 1; argidx < args.size(); argidx++)
@ -219,8 +161,8 @@ struct SynthXilinxPass : public Pass
}
if (args[argidx] == "-nosrl") {
nosrl = true;
continue;
}
continue;
}
if (args[argidx] == "-nomux") {
nomux = true;
continue;
@ -236,135 +178,130 @@ struct SynthXilinxPass : public Pass
if (!design->full_selection())
log_cmd_error("This command only operates on fully selected designs!\n");
bool active = run_from.empty();
log_header(design, "Executing SYNTH_XILINX pass.\n");
log_push();
if (check_label(active, run_from, run_to, "begin"))
{
if (vpr) {
Pass::call(design, "read_verilog -lib -D_EXPLICIT_CARRY +/xilinx/cells_sim.v");
} else {
Pass::call(design, "read_verilog -lib +/xilinx/cells_sim.v");
}
run_script(design, run_from, run_to);
Pass::call(design, "read_verilog -lib +/xilinx/cells_xtra.v");
log_pop();
}
if (!nobram) {
Pass::call(design, "read_verilog -lib +/xilinx/brams_bb.v");
}
void script() YS_OVERRIDE
{
if (check_label("begin")) {
if (vpr)
run("read_verilog -lib -D_EXPLICIT_CARRY +/xilinx/cells_sim.v");
else
run("read_verilog -lib +/xilinx/cells_sim.v");
Pass::call(design, stringf("hierarchy -check %s", top_opt.c_str()));
run("read_verilog -lib +/xilinx/cells_xtra.v");
if (!nobram || help_mode)
run("read_verilog -lib +/xilinx/brams_bb.v", "(skip if '-nobram')");
run(stringf("hierarchy -check %s", top_opt.c_str()));
}
if (flatten && check_label(active, run_from, run_to, "flatten"))
{
Pass::call(design, "proc");
Pass::call(design, "flatten");
}
if (check_label(active, run_from, run_to, "coarse"))
{
Pass::call(design, "synth -run coarse");
}
if (check_label(active, run_from, run_to, "bram"))
{
if (!nobram) {
Pass::call(design, "memory_bram -rules +/xilinx/brams.txt");
Pass::call(design, "techmap -map +/xilinx/brams_map.v");
if (check_label("flatten", "(with '-flatten' only)")) {
if (flatten || help_mode) {
run("proc");
run("flatten");
}
}
if (check_label(active, run_from, run_to, "dram"))
{
if (!nodram) {
Pass::call(design, "memory_bram -rules +/xilinx/drams.txt");
Pass::call(design, "techmap -map +/xilinx/drams_map.v");
if (check_label("coarse")) {
run("synth -run coarse");
}
if (check_label("bram", "(skip if '-nobram')")) {
if (!nobram || help_mode) {
run("memory_bram -rules +/xilinx/brams.txt");
run("techmap -map +/xilinx/brams_map.v");
}
}
if (check_label(active, run_from, run_to, "fine"))
{
Pass::call(design, "opt -fast -full");
Pass::call(design, "memory_map");
Pass::call(design, "dffsr2dff");
Pass::call(design, "dff2dffe");
if (!nocarry) {
if (vpr)
Pass::call(design, "techmap -D _EXPLICIT_CARRY -map +/xilinx/arith_map.v");
else
Pass::call(design, "techmap -map +/xilinx/arith_map.v");
if (check_label("dram", "(skip if '-nodram')")) {
if (!nodram || help_mode) {
run("memory_bram -rules +/xilinx/drams.txt");
run("techmap -map +/xilinx/drams_map.v");
}
}
if (check_label("fine")) {
// shregmap -tech xilinx can cope with $shiftx and $mux
// cells for identifying variable-length shift registers,
// so attempt to convert $pmux-es to the former
// Also: wide multiplexer inference benefits from this too
if (!nosrl || !nomux)
Pass::call(design, "pmux2shiftx");
run("pmux2shiftx", "(skip if '-nosrl' and '-nomux')");
Pass::call(design, "opt -full");
Pass::call(design, "techmap");
Pass::call(design, "opt -fast");
run("opt -fast -full");
run("memory_map");
run("dffsr2dff");
run("dff2dffe");
run("opt -full");
// shregmap with '-tech xilinx' infers variable length shift regs
if (!nosrl)
Pass::call(design, "shregmap -tech xilinx -minlen 3");
if (!vpr || help_mode)
run("techmap -map +/xilinx/arith_map.v");
else
run("techmap -map +/xilinx/arith_map.v -D _EXPLICIT_CARRY");
if (!nomux)
Pass::call(design, "muxcover -mux8 -mux16");
if (!nosrl || help_mode) {
// shregmap operates on bit-level flops, not word-level,
// so break those down here
run("simplemap t:$dff t:$dffe", "(skip if '-nosrl')");
// shregmap with '-tech xilinx' infers variable length shift regs
run("shregmap -tech xilinx -minlen 3", "(skip if '-nosrl')");
}
Pass::call(design, "opt -fast");
run("techmap");
run("opt -fast");
if (!nomux || help_mode)
run("muxcover -mux8 -mux16");
}
if (check_label(active, run_from, run_to, "map_cells"))
{
if (check_label("map_cells")) {
std::string define;
if (nomux)
define += " -D NO_MUXFN";
Pass::call(design, "techmap" + define + " -map +/xilinx/cells_map.v");
Pass::call(design, "clean");
run("techmap -map +/techmap.v -map +/xilinx/cells_map.v" + define);
run("clean");
}
if (check_label(active, run_from, run_to, "map_luts"))
{
Pass::call(design, "techmap -map +/techmap.v -D _NO_POS_SR -map +/xilinx/ff_map.v");
if (check_label("map_luts")) {
if (abc == "abc9")
Pass::call(design, abc + " -lut +/xilinx/abc.lut -box +/xilinx/abc.box" + string(retime ? " -dff" : ""));
run(abc + " -lut +/xilinx/abc.lut -box +/xilinx/abc.box" + string(retime ? " -dff" : ""));
else if (help_mode)
run(abc + " -luts 2:2,3,6:5,10,20 [-dff]");
else
Pass::call(design, abc + " -luts 2:2,3,6:5,10,20" + string(retime ? " -dff" : ""));
Pass::call(design, "clean");
run(abc + " -luts 2:2,3,6:5,10,20" + string(retime ? " -dff" : ""));
run("clean");
// This shregmap call infers fixed length shift registers after abc
// has performed any necessary retiming
if (!nosrl)
Pass::call(design, "shregmap -minlen 3 -init -params -enpol any_or_none");
Pass::call(design, "techmap -map +/xilinx/lut_map.v -map +/xilinx/ff_map.v -map +/xilinx/cells_map.v");
Pass::call(design, "dffinit -ff FDRE Q INIT -ff FDCE Q INIT -ff FDPE Q INIT -ff FDSE Q INIT "
if (!nosrl || help_mode)
run("shregmap -minlen 3 -init -params -enpol any_or_none", "(skip if '-nosrl')");
run("techmap -map +/xilinx/lut_map.v -map +/xilinx/ff_map.v -map +/xilinx/cells_map.v");
run("dffinit -ff FDRE Q INIT -ff FDCE Q INIT -ff FDPE Q INIT -ff FDSE Q INIT "
"-ff FDRE_1 Q INIT -ff FDCE_1 Q INIT -ff FDPE_1 Q INIT -ff FDSE_1 Q INIT");
run("clean");
}
if (check_label(active, run_from, run_to, "check"))
{
Pass::call(design, "hierarchy -check");
Pass::call(design, "stat");
Pass::call(design, "check -noinit");
if (check_label("check")) {
run("hierarchy -check");
run("stat");
run("check -noinit");
}
if (check_label(active, run_from, run_to, "edif"))
{
if (!edif_file.empty())
Pass::call(design, stringf("write_edif -pvector bra %s", edif_file.c_str()));
}
if (check_label(active, run_from, run_to, "blif"))
{
if (!blif_file.empty())
Pass::call(design, stringf("write_blif %s", edif_file.c_str()));
if (check_label("edif")) {
if (!edif_file.empty() || help_mode)
run(stringf("write_edif -pvector bra %s", edif_file.c_str()));
}
log_pop();
if (check_label("blif")) {
if (!blif_file.empty() || help_mode)
run(stringf("write_blif %s", edif_file.c_str()));
}
}
} SynthXilinxPass;