Merge pull request #47 from YosysHQ/settings_propagate

Use settings for placer1 and router1

8 files changed, 118 insertions, 14 deletions

diff --git a/common/command.cc b/common/command.cc
index d5639e9a..ab0c92f2 100644
--- a/common/command.cc
+++ b/common/command.cc
@@ -144,7 +144,7 @@ void CommandHandler::setupContext(Context *ctx)
     }
 
     if (vm.count("cstrweight")) {
-        // ctx->placer_constraintWeight = vm["cstrweight"].as<float>();
+        settings->set("placer1/constraintWeight", vm["cstrweight"].as<float>());
     }
 
     if (vm.count("freq")) {
@@ -261,6 +261,7 @@ int CommandHandler::exec()
         } else {
             ctx = createContext();
         }
+        settings = std::unique_ptr<Settings>(new Settings(ctx.get()));
         setupContext(ctx.get());
         setupArchContext(ctx.get());
         return executeMain(std::move(ctx));
diff --git a/common/command.h b/common/command.h
index 13d5a250..900cf74b 100644
--- a/common/command.h
+++ b/common/command.h
@@ -24,6 +24,7 @@
 #include <boost/program_options.hpp>
 #include "nextpnr.h"
 #include "project.h"
+#include "settings.h"
 
 NEXTPNR_NAMESPACE_BEGIN
 
@@ -56,6 +57,7 @@ class CommandHandler
   protected:
     po::variables_map vm;
     ArchArgs chipArgs;
+    std::unique_ptr<Settings> settings;
 
   private:
     po::options_description options;
diff --git a/common/placer1.cc b/common/placer1.cc
index 88f2fc47..363b4d58 100644
--- a/common/placer1.cc
+++ b/common/placer1.cc
@@ -23,6 +23,7 @@
 
 #include "placer1.h"
 #include <algorithm>
+#include <boost/lexical_cast.hpp>
 #include <cmath>
 #include <iostream>
 #include <limits>
@@ -108,14 +109,12 @@ class SAPlacer
                 if (bel_type != cell->type) {
                     log_error("Bel \'%s\' of type \'%s\' does not match cell "
                               "\'%s\' of type \'%s\'\n",
-                              loc_name.c_str(), bel_type.c_str(ctx), cell->name.c_str(ctx),
-                              cell->type.c_str(ctx));
+                              loc_name.c_str(), bel_type.c_str(ctx), cell->name.c_str(ctx), cell->type.c_str(ctx));
                 }
                 if (!ctx->isValidBelForCell(cell, bel)) {
                     log_error("Bel \'%s\' of type \'%s\' is not valid for cell "
                               "\'%s\' of type \'%s\'\n",
-                              loc_name.c_str(), bel_type.c_str(ctx), cell->name.c_str(ctx),
-                              cell->type.c_str(ctx));
+                              loc_name.c_str(), bel_type.c_str(ctx), cell->name.c_str(ctx), cell->type.c_str(ctx));
                 }
 
                 ctx->bindBel(bel, cell, STRENGTH_USER);
@@ -492,6 +491,8 @@ class SAPlacer
     std::vector<decltype(NetInfo::udata)> old_udata;
 };
 
+Placer1Cfg::Placer1Cfg(Context *ctx) : Settings(ctx) { constraintWeight = get<float>("placer1/constraintWeight", 10); }
+
 bool placer1(Context *ctx, Placer1Cfg cfg)
 {
     try {
diff --git a/common/placer1.h b/common/placer1.h
index d8f64b84..55db1fa5 100644
--- a/common/placer1.h
+++ b/common/placer1.h
@@ -20,12 +20,14 @@
 #define PLACE_H
 
 #include "nextpnr.h"
+#include "settings.h"
 
 NEXTPNR_NAMESPACE_BEGIN
 
-struct Placer1Cfg
+struct Placer1Cfg : public Settings
 {
-    float constraintWeight = 10;
+    Placer1Cfg(Context *ctx);
+    float constraintWeight;
 };
 
 extern bool placer1(Context *ctx, Placer1Cfg cfg);
diff --git a/common/project.cc b/common/project.cc
index 949f6878..b0ebe961 100644
--- a/common/project.cc
+++ b/common/project.cc
@@ -18,6 +18,7 @@
  */
 
 #include "project.h"
+#include <algorithm>
 #include <boost/filesystem/convenience.hpp>
 #include <boost/property_tree/json_parser.hpp>
 #include <fstream>
@@ -64,17 +65,36 @@ void ProjectHandler::save(Context *ctx, std::string filename)
         root.put("project.name", boost::filesystem::basename(filename));
         root.put("project.arch.name", ctx->archId().c_str(ctx));
         root.put("project.arch.type", ctx->archArgsToId(ctx->archArgs()).c_str(ctx));
-        std::string fn = ctx->settings[ctx->id("project/input/json")];
+        std::string fn = ctx->settings[ctx->id("input/json")];
         root.put("project.input.json", make_relative(fn, proj.parent_path()).string());
         root.put("project.params.freq", int(ctx->target_freq / 1e6));
         root.put("project.params.seed", ctx->rngstate);
         saveArch(ctx, root, proj.parent_path().string());
+        for (auto const &item : ctx->settings) {
+            std::string path = "project.settings.";
+            path += item.first.c_str(ctx);
+            std::replace(path.begin(), path.end(), '/', '.');
+            root.put(path, item.second);
+        }
         pt::write_json(f, root);
     } catch (...) {
         log_error("Error saving project file.\n");
     }
 }
 
+void addSettings(Context *ctx, std::string path, pt::ptree sub)
+{
+    for (pt::ptree::value_type &v : sub) {
+        const std::string &key = v.first;
+        const boost::property_tree::ptree &subtree = v.second;
+        if (subtree.empty()) {
+            ctx->settings.emplace(ctx->id(path + key), subtree.get_value<std::string>().c_str());
+        } else {
+            addSettings(ctx, path + key + "/", subtree);
+        }
+    }
+}
+
 std::unique_ptr<Context> ProjectHandler::load(std::string filename)
 {
     std::unique_ptr<Context> ctx;
@@ -110,6 +130,10 @@ std::unique_ptr<Context> ProjectHandler::load(std::string filename)
             if (params.count("seed"))
                 ctx->rngseed(params.get<uint64_t>("seed"));
         }
+        if (project.count("settings")) {
+            addSettings(ctx.get(), "", project.get_child("settings"));
+        }
+
         loadArch(ctx.get(), root, proj.parent_path().string());
     } catch (...) {
         log_error("Error loading project file.\n");
diff --git a/common/router1.cc b/common/router1.cc
index 0733a61e..5cd4414c 100644
--- a/common/router1.cc
+++ b/common/router1.cc
@@ -682,6 +682,14 @@ void cleanupReroute(Context *ctx, const Router1Cfg &cfg, RipupScoreboard &scores
 
 NEXTPNR_NAMESPACE_BEGIN
 
+Router1Cfg::Router1Cfg(Context *ctx) : Settings(ctx)
+{
+    maxIterCnt = get<int>("router1/maxIterCnt", 200);
+    cleanupReroute = get<bool>("router1/cleanupReroute", true);
+    fullCleanupReroute = get<bool>("router1/fullCleanupReroute", true);
+    useEstimate = get<bool>("router1/useEstimate", true);
+}
+
 bool router1(Context *ctx, const Router1Cfg &cfg)
 {
     try {
@@ -953,7 +961,7 @@ bool Context::getActualRouteDelay(WireId src_wire, WireId dst_wire, delay_t *del
                                   std::unordered_map<WireId, PipId> *route, bool useEstimate)
 {
     RipupScoreboard scores;
-    Router1Cfg cfg;
+    Router1Cfg cfg(this);
     cfg.useEstimate = useEstimate;
 
     Router router(this, cfg, scores, src_wire, dst_wire);
diff --git a/common/router1.h b/common/router1.h
index 0380adc2..a184cbe7 100644
--- a/common/router1.h
+++ b/common/router1.h
@@ -21,15 +21,18 @@
 #define ROUTER1_H
 
 #include "nextpnr.h"
+#include "settings.h"
 
 NEXTPNR_NAMESPACE_BEGIN
 
-struct Router1Cfg
+struct Router1Cfg : Settings
 {
-    int maxIterCnt = 200;
-    bool cleanupReroute = true;
-    bool fullCleanupReroute = true;
-    bool useEstimate = true;
+    Router1Cfg(Context *ctx);
+
+    int maxIterCnt;
+    bool cleanupReroute;
+    bool fullCleanupReroute;
+    bool useEstimate;
 };
 
 extern bool router1(Context *ctx, const Router1Cfg &cfg);
diff --git a/common/settings.h b/common/settings.h
new file mode 100644
index 00000000..e1f1166a
--- /dev/null
+++ b/common/settings.h
@@ -0,0 +1,63 @@
+/*
+ *  nextpnr -- Next Generation Place and Route
+ *
+ *  Copyright (C) 2018  Miodrag Milanovic <miodrag@symbioticeda.com>
+ *
+ *  Permission to use, copy, modify, and/or distribute this software for any
+ *  purpose with or without fee is hereby granted, provided that the above
+ *  copyright notice and this permission notice appear in all copies.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ *  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ *  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ *  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ *  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ *  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+#ifndef SETTINGS_H
+#define SETTINGS_H
+
+#include <boost/lexical_cast.hpp>
+#include "log.h"
+#include "nextpnr.h"
+
+NEXTPNR_NAMESPACE_BEGIN
+
+class Settings
+{
+  public:
+    explicit Settings(Context *ctx) : ctx(ctx) {}
+
+    template <typename T> T get(const char *name, T defaultValue)
+    {
+        try {
+            IdString id = ctx->id(name);
+            auto pair = ctx->settings.emplace(id, std::to_string(defaultValue));
+            if (!pair.second) {
+                return boost::lexical_cast<T>(pair.first->second);
+            }
+            
+        } catch (boost::bad_lexical_cast &) {
+            log_error("Problem reading setting %s, using default value\n", name);
+        }
+        return defaultValue;
+    }
+
+    template <typename T> void set(const char *name, T value)
+    {
+        IdString id = ctx->id(name);
+        auto pair = ctx->settings.emplace(id, std::to_string(value));
+        if (!pair.second) {
+            ctx->settings[pair.first->first] = value;
+        }        
+    }
+
+  private:
+    Context *ctx;
+};
+
+NEXTPNR_NAMESPACE_END
+
+#endif // SETTINGS_H