xilinx: Add Python bindings

Signed-off-by: David Shah <[email protected]>
gatecat · Feb 3, 2020 · c88e37e · c88e37e
1 parent 4ebf212
commit c88e37e
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Showing 6 changed files with 187 additions and 9 deletions.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -3,7 +3,7 @@ cmake_minimum_required(VERSION 3.3)
 project(nextpnr)
 
 option(BUILD_GUI "Build GUI" OFF)
-option(BUILD_PYTHON "Build Python Integration" OFF)
+option(BUILD_PYTHON "Build Python Integration" ON)
 option(BUILD_TESTS "Build GUI" OFF)
 option(BUILD_HEAP "Build HeAP analytic placer" ON)
 option(USE_OPENMP "Use OpenMP to accelerate analytic placer" ON)

diff --git a/common/arch_pybindings_shared.h b/common/arch_pybindings_shared.h
@@ -91,11 +91,11 @@ fn_wrapper_1a<Context, decltype(&Context::getBoundPipNet), &Context::getBoundPip
 fn_wrapper_1a<Context, decltype(&Context::getConflictingPipNet), &Context::getConflictingPipNet,
               deref_and_wrap<NetInfo>, conv_from_str<PipId>>::def_wrap(ctx_cls, "getConflictingPipNet");
 
-fn_wrapper_1a<Context, decltype(&Context::getPipsDownhill), &Context::getPipsDownhill, wrap_context<PipRange>,
+fn_wrapper_1a<Context, decltype(&Context::getPipsDownhill), &Context::getPipsDownhill, wrap_context<DownhillPipRange>,
               conv_from_str<WireId>>::def_wrap(ctx_cls, "getPipsDownhill");
-fn_wrapper_1a<Context, decltype(&Context::getPipsUphill), &Context::getPipsUphill, wrap_context<PipRange>,
+fn_wrapper_1a<Context, decltype(&Context::getPipsUphill), &Context::getPipsUphill, wrap_context<UphillPipRange>,
               conv_from_str<WireId>>::def_wrap(ctx_cls, "getPipsUphill");
-fn_wrapper_1a<Context, decltype(&Context::getWireAliases), &Context::getWireAliases, wrap_context<PipRange>,
+fn_wrapper_1a<Context, decltype(&Context::getWireAliases), &Context::getWireAliases, wrap_context<AliasPipRange>,
               conv_from_str<WireId>>::def_wrap(ctx_cls, "getWireAliases");
 
 fn_wrapper_1a<Context, decltype(&Context::getPipSrcWire), &Context::getPipSrcWire, conv_to_str<WireId>,
@@ -105,11 +105,6 @@ fn_wrapper_1a<Context, decltype(&Context::getPipDstWire), &Context::getPipDstWir
 fn_wrapper_1a<Context, decltype(&Context::getPipDelay), &Context::getPipDelay, pass_through<DelayInfo>,
               conv_from_str<PipId>>::def_wrap(ctx_cls, "getPipDelay");
 
-fn_wrapper_1a<Context, decltype(&Context::getPackagePinBel), &Context::getPackagePinBel, conv_to_str<BelId>,
-              pass_through<std::string>>::def_wrap(ctx_cls, "getPackagePinBel");
-fn_wrapper_1a<Context, decltype(&Context::getBelPackagePin), &Context::getBelPackagePin, pass_through<std::string>,
-              conv_from_str<BelId>>::def_wrap(ctx_cls, "getBelPackagePin");
-
 fn_wrapper_0a<Context, decltype(&Context::getChipName), &Context::getChipName, pass_through<std::string>>::def_wrap(
         ctx_cls, "getChipName");
 fn_wrapper_0a<Context, decltype(&Context::archId), &Context::archId, conv_to_str<IdString>>::def_wrap(ctx_cls,

diff --git a/ecp5/arch_pybindings.cc b/ecp5/arch_pybindings.cc
@@ -58,6 +58,10 @@ void arch_wrap_python()
     readonly_wrapper<BelPin, decltype(&BelPin::bel), &BelPin::bel, conv_to_str<BelId>>::def_wrap(belpin_cls, "bel");
     readonly_wrapper<BelPin, decltype(&BelPin::pin), &BelPin::pin, conv_to_str<IdString>>::def_wrap(belpin_cls, "pin");
 
+    typedef PipRange AliasPipRange;
+    typedef PipRange UphillPipRange;
+    typedef PipRange DownhillPipRange;
+
 #include "arch_pybindings_shared.h"
 
     WRAP_RANGE(Bel, conv_to_str<BelId>);

diff --git a/ice40/arch_pybindings.cc b/ice40/arch_pybindings.cc
@@ -66,6 +66,10 @@ void arch_wrap_python()
     readonly_wrapper<BelPin, decltype(&BelPin::bel), &BelPin::bel, conv_to_str<BelId>>::def_wrap(belpin_cls, "bel");
     readonly_wrapper<BelPin, decltype(&BelPin::pin), &BelPin::pin, conv_to_str<IdString>>::def_wrap(belpin_cls, "pin");
 
+    typedef PipRange AliasPipRange;
+    typedef PipRange UphillPipRange;
+    typedef PipRange DownhillPipRange;
+
 #include "arch_pybindings_shared.h"
 
     WRAP_RANGE(Bel, conv_to_str<BelId>);

diff --git a/xilinx/arch_pybindings.cc b/xilinx/arch_pybindings.cc
@@ -0,0 +1,78 @@
+/*
+ *  nextpnr -- Next Generation Place and Route
+ *
+ *  Copyright (C) 2020  David Shah <[email protected]>
+ *
+ *  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 NO_PYTHON
+
+#include "arch_pybindings.h"
+#include "nextpnr.h"
+#include "pybindings.h"
+
+NEXTPNR_NAMESPACE_BEGIN
+
+void arch_wrap_python()
+{
+    using namespace PythonConversion;
+    class_<ArchArgs>("ArchArgs");
+
+    class_<BelId>("BelId").def_readwrite("index", &BelId::index);
+
+    class_<WireId>("WireId").def_readwrite("index", &WireId::index);
+
+    class_<PipId>("PipId").def_readwrite("index", &PipId::index);
+
+    class_<BelPin>("BelPin").def_readwrite("bel", &BelPin::bel).def_readwrite("pin", &BelPin::pin);
+
+    auto arch_cls = class_<Arch, Arch *, bases<BaseCtx>, boost::noncopyable>("Arch", init<ArchArgs>());
+    auto ctx_cls = class_<Context, Context *, bases<Arch>, boost::noncopyable>("Context", no_init)
+                           .def("checksum", &Context::checksum)
+                           .def("pack", &Context::pack)
+                           .def("place", &Context::place)
+                           .def("route", &Context::route);
+
+    fn_wrapper_2a<Context, decltype(&Context::isValidBelForCell), &Context::isValidBelForCell, pass_through<bool>,
+                  addr_and_unwrap<CellInfo>, conv_from_str<BelId>>::def_wrap(ctx_cls, "isValidBelForCell");
+
+    typedef std::unordered_map<IdString, std::unique_ptr<CellInfo>> CellMap;
+    typedef std::unordered_map<IdString, std::unique_ptr<NetInfo>> NetMap;
+    typedef std::unordered_map<IdString, IdString> AliasMap;
+    typedef std::unordered_map<IdString, HierarchicalCell> HierarchyMap;
+
+    auto belpin_cls = class_<ContextualWrapper<BelPin>>("BelPin", no_init);
+    readonly_wrapper<BelPin, decltype(&BelPin::bel), &BelPin::bel, conv_to_str<BelId>>::def_wrap(belpin_cls, "bel");
+    readonly_wrapper<BelPin, decltype(&BelPin::pin), &BelPin::pin, conv_to_str<IdString>>::def_wrap(belpin_cls, "pin");
+
+    typedef UphillPipRange AliasPipRange;
+
+#include "arch_pybindings_shared.h"
+
+    WRAP_RANGE(Bel, conv_to_str<BelId>);
+    WRAP_RANGE(Wire, conv_to_str<WireId>);
+    WRAP_RANGE(AllPip, conv_to_str<PipId>);
+    WRAP_RANGE(UphillPip, conv_to_str<PipId>);
+    WRAP_RANGE(DownhillPip, conv_to_str<PipId>);
+    WRAP_RANGE(BelPin, wrap_context<BelPin>);
+
+    WRAP_MAP_UPTR(CellMap, "IdCellMap");
+    WRAP_MAP_UPTR(NetMap, "IdNetMap");
+    WRAP_MAP(HierarchyMap, wrap_context<HierarchicalCell &>, "HierarchyMap");
+}
+
+NEXTPNR_NAMESPACE_END
+
+#endif // NO_PYTHON
diff --git a/xilinx/arch_pybindings.h b/xilinx/arch_pybindings.h
@@ -0,0 +1,97 @@
+/*
+ *  nextpnr -- Next Generation Place and Route
+ *
+ *  Copyright (C) 2020  David Shah <[email protected]>
+ *
+ *  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 ARCH_PYBINDINGS_H
+#define ARCH_PYBINDINGS_H
+#ifndef NO_PYTHON
+
+#include "nextpnr.h"
+#include "pybindings.h"
+
+NEXTPNR_NAMESPACE_BEGIN
+
+namespace PythonConversion {
+
+template <> struct string_converter<BelId>
+{
+    BelId from_str(Context *ctx, std::string name) { return ctx->getBelByName(ctx->id(name)); }
+
+    std::string to_str(Context *ctx, BelId id)
+    {
+        if (id == BelId())
+            throw bad_wrap();
+        return ctx->getBelName(id).str(ctx);
+    }
+};
+
+template <> struct string_converter<WireId>
+{
+    WireId from_str(Context *ctx, std::string name) { return ctx->getWireByName(ctx->id(name)); }
+
+    std::string to_str(Context *ctx, WireId id)
+    {
+        if (id == WireId())
+            throw bad_wrap();
+        return ctx->getWireName(id).str(ctx);
+    }
+};
+
+template <> struct string_converter<const WireId>
+{
+    WireId from_str(Context *ctx, std::string name) { return ctx->getWireByName(ctx->id(name)); }
+
+    std::string to_str(Context *ctx, WireId id)
+    {
+        if (id == WireId())
+            throw bad_wrap();
+        return ctx->getWireName(id).str(ctx);
+    }
+};
+
+template <> struct string_converter<PipId>
+{
+    PipId from_str(Context *ctx, std::string name) { return ctx->getPipByName(ctx->id(name)); }
+
+    std::string to_str(Context *ctx, PipId id)
+    {
+        if (id == PipId())
+            throw bad_wrap();
+        return ctx->getPipName(id).str(ctx);
+    }
+};
+
+template <> struct string_converter<BelPin>
+{
+    BelPin from_str(Context *ctx, std::string name)
+    {
+        NPNR_ASSERT_FALSE("string_converter<BelPin>::from_str not implemented");
+    }
+
+    std::string to_str(Context *ctx, BelPin pin)
+    {
+        if (pin.bel == BelId())
+            throw bad_wrap();
+        return ctx->getBelName(pin.bel).str(ctx) + "/" + pin.pin.str(ctx);
+    }
+};
+
+} // namespace PythonConversion
+
+NEXTPNR_NAMESPACE_END
+#endif
+#endif