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Code Activity

Harmonize BRAM/LUTRAM descriptions across all of Yosys.

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This commit:
  * renames all remaining instances of "DRAM" (which is ambiguous)
    to "LUTRAM" (which is not), finishing the work started in
    the commit 698ab9be;
  * renames memory rule files to brams.txt/lutrams.txt;
  * adds/renames script labels map_bram/map_lutram;
  * extracts where necessary script labels map_ffram and map_gates;
  * adds where necessary options -nobram/-nolutram.

The end result is that BRAM/LUTRAM/FFRAM aspects of every target
are now consistent with each other.

Per architecture:
  * anlogic: rename drams.txt→lutrams.txt, add -nolutram, add
    :map_lutram, :map_ffram, :map_gates
  * ecp5: rename bram.txt→brams.txt, lutram.txt→lutrams.txt
  * efinix: rename bram.txt→brams.txt, add -nobram, add :map_ffram,
    :map_gates
  * gowin: rename bram.txt→brams.txt, dram.txt→lutrams.txt,
    rename -nodram→-nolutram (-nodram still recognized), rename
    :bram→:map_bram, :dram→:map_lutram, add :map_ffram, :map_gates
This commit is contained in:
whitequark 2020-01-01 12:30:00 +00:00
parent 22fe931c86
commit 550310e264
18 changed files with 67 additions and 40 deletions
Download patch file Download diff file Expand all files Collapse all files

22
techlibs/efinix/synth_efinix.cc
View file

@ -60,6 +60,9 @@ struct SynthEfinixPass : public ScriptPass
log(" -retime\n");
log(" run 'abc' with -dff option\n");
log("\n");
log(" -nobram\n");
log(" do not use EFX_RAM_5K cells in output netlist\n");
log("\n");
log("\n");
log("The following commands are executed by this synthesis command:\n");
help_script();
@ -67,7 +70,7 @@ struct SynthEfinixPass : public ScriptPass
}
string top_opt, edif_file, json_file;
bool flatten, retime;
bool flatten, retime, nobram;
void clear_flags() YS_OVERRIDE
{
@ -76,6 +79,7 @@ struct SynthEfinixPass : public ScriptPass
json_file = "";
flatten = true;
retime = false;
nobram = false;
}
void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE
@ -114,6 +118,10 @@ struct SynthEfinixPass : public ScriptPass
retime = true;
continue;
}
if (args[argidx] == "-nobram") {
nobram = true;
continue;
}
break;
}
extra_args(args, argidx, design);
@ -150,18 +158,22 @@ struct SynthEfinixPass : public ScriptPass
run("synth -run coarse");
}
if (check_label("map_bram", "(skip if -nobram)"))
if (!nobram || check_label("map_bram", "(skip if -nobram)"))
{
run("memory_bram -rules +/efinix/bram.txt");
run("memory_bram -rules +/efinix/brams.txt");
run("techmap -map +/efinix/brams_map.v");
run("setundef -zero -params t:EFX_RAM_5K");
}
if (check_label("fine"))
if (check_label("map_ffram"))
{
run("opt -fast -mux_undef -undriven -fine");
run("memory_map");
run("opt -undriven -fine");
}
if (check_label("map_gates"))
{
run("techmap -map +/techmap.v -map +/efinix/arith_map.v");
if (retime || help_mode)
run("abc -dff", "(only if -retime)");
@ -194,7 +206,7 @@ struct SynthEfinixPass : public ScriptPass
run("efinix_fixcarry");
run("clean");
}
if (check_label("check"))
{
run("hierarchy -check");