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-rw-r--r--fpga_interchange/arch.cc18
-rw-r--r--fpga_interchange/arch.h8
-rw-r--r--fpga_interchange/family.cmake9
-rw-r--r--fpga_interchange/main.cc22
-rw-r--r--fpga_interchange/xdc.cc152
-rw-r--r--fpga_interchange/xdc.h33
6 files changed, 239 insertions, 3 deletions
diff --git a/fpga_interchange/arch.cc b/fpga_interchange/arch.cc
index 583813f0..1abf6f30 100644
--- a/fpga_interchange/arch.cc
+++ b/fpga_interchange/arch.cc
@@ -33,6 +33,7 @@
#include "router2.h"
#include "timing.h"
#include "util.h"
+#include "xdc.h"
NEXTPNR_NAMESPACE_BEGIN
@@ -558,6 +559,23 @@ TimingClockingInfo Arch::getPortClockingInfo(const CellInfo *cell, IdString port
return info;
}
+// -----------------------------------------------------------------------
+
+void Arch::read_logical_netlist(const std::string &filename) {}
+void Arch::write_physical_netlist(const std::string &filename) const {}
+
+void Arch::parse_xdc(const std::string &filename)
+{
+ TclInterp interp(getCtx());
+ auto result = Tcl_EvalFile(interp.interp, filename.c_str());
+ if (result != TCL_OK) {
+ log_error("Error in %s:%d => %s\n", filename.c_str(), Tcl_GetErrorLine(interp.interp),
+ Tcl_GetStringResult(interp.interp));
+ }
+}
+
+// -----------------------------------------------------------------------
+
#ifdef WITH_HEAP
const std::string Arch::defaultPlacer = "heap";
#else
diff --git a/fpga_interchange/arch.h b/fpga_interchange/arch.h
index 5964a38f..886978f1 100644
--- a/fpga_interchange/arch.h
+++ b/fpga_interchange/arch.h
@@ -650,6 +650,7 @@ struct BelBucketRange
struct ArchArgs
{
std::string chipdb;
+ std::string package;
};
struct ArchRanges
@@ -660,6 +661,7 @@ struct ArchRanges
using TileBelsRangeT = BelRange;
using BelAttrsRangeT = std::vector<std::pair<IdString, std::string>>;
using BelPinsRangeT = IdStringRange;
+ using CellBelPinRangeT = std::array<IdString, 1>;
// Wires
using AllWiresRangeT = WireRange;
using DownhillPipRangeT = DownhillPipRange;
@@ -865,6 +867,8 @@ struct Arch : ArchAPI<ArchRanges>
return str_range;
}
+ std::array<IdString, 1> getBelPinsForCellPin(CellInfo *cell_info, IdString pin) const override { return {pin}; }
+
// -------------------------------------------------
WireId getWireByName(IdStringList name) const override;
@@ -1301,7 +1305,9 @@ struct Arch : ArchAPI<ArchRanges>
static const std::vector<std::string> availableRouters;
// -------------------------------------------------
- void write_physical_netlist(const std::string &filename) const {}
+ void read_logical_netlist(const std::string &filename);
+ void write_physical_netlist(const std::string &filename) const;
+ void parse_xdc(const std::string &filename);
};
NEXTPNR_NAMESPACE_END
diff --git a/fpga_interchange/family.cmake b/fpga_interchange/family.cmake
index e69de29b..c3fefaba 100644
--- a/fpga_interchange/family.cmake
+++ b/fpga_interchange/family.cmake
@@ -0,0 +1,9 @@
+find_package(TCL)
+if(NOT ${TCL_FOUND})
+ message(FATAL_ERROR "Tcl is required for FPGA interchange Arch.")
+endif()
+
+foreach (target ${family_targets})
+ target_link_libraries(${target} LINK_PUBLIC ${TCL_LIBRARY})
+ include_directories (${TCL_INCLUDE_PATH})
+endforeach()
diff --git a/fpga_interchange/main.cc b/fpga_interchange/main.cc
index 1f98b186..48b07584 100644
--- a/fpga_interchange/main.cc
+++ b/fpga_interchange/main.cc
@@ -49,8 +49,10 @@ po::options_description FpgaInterchangeCommandHandler::getArchOptions()
{
po::options_description specific("Architecture specific options");
specific.add_options()("chipdb", po::value<std::string>(), "name of chip database binary");
- specific.add_options()("xdc", po::value<std::vector<std::string>>(), "XDC-style constraints file");
+ specific.add_options()("xdc", po::value<std::vector<std::string>>(), "XDC-style constraints file to read");
+ specific.add_options()("netlist", po::value<std::string>(), "FPGA interchange logical netlist to read");
specific.add_options()("phys", po::value<std::string>(), "FPGA interchange Physical netlist to write");
+ specific.add_options()("package", po::value<std::string>(), "Package to use");
return specific;
}
@@ -70,7 +72,23 @@ std::unique_ptr<Context> FpgaInterchangeCommandHandler::createContext(std::unord
log_error("chip database binary must be provided\n");
}
chipArgs.chipdb = vm["chipdb"].as<std::string>();
- return std::unique_ptr<Context>(new Context(chipArgs));
+ if (vm.count("package")) {
+ chipArgs.package = vm["package"].as<std::string>();
+ }
+
+ auto ctx = std::unique_ptr<Context>(new Context(chipArgs));
+
+ if (vm.count("netlist")) {
+ ctx->read_logical_netlist(vm["netlist"].as<std::string>());
+ }
+
+ if (vm.count("xdc")) {
+ for (auto &x : vm["xdc"].as<std::vector<std::string>>()) {
+ ctx->parse_xdc(x);
+ }
+ }
+
+ return ctx;
}
void FpgaInterchangeCommandHandler::customAfterLoad(Context *ctx) {}
diff --git a/fpga_interchange/xdc.cc b/fpga_interchange/xdc.cc
new file mode 100644
index 00000000..584a1777
--- /dev/null
+++ b/fpga_interchange/xdc.cc
@@ -0,0 +1,152 @@
+/*
+ * nextpnr -- Next Generation Place and Route
+ *
+ * Copyright (C) 2019 David Shah <david@symbioticeda.com>
+ * Copyright (C) 2021 Symbiflow Authors
+ *
+ * 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.
+ *
+ */
+
+#include "xdc.h"
+#include <string>
+#include "log.h"
+#include "nextpnr.h"
+
+NEXTPNR_NAMESPACE_BEGIN
+
+static int port_set_from_any(Tcl_Interp *interp, Tcl_Obj *objPtr) { return TCL_ERROR; }
+
+static void set_tcl_obj_string(Tcl_Obj *objPtr, const std::string &s)
+{
+ NPNR_ASSERT(objPtr->bytes == nullptr);
+ // Need to have space for the end null byte.
+ objPtr->bytes = Tcl_Alloc(s.size() + 1);
+
+ // Length is length of string, not including the end null byte.
+ objPtr->length = s.size();
+
+ std::copy(s.begin(), s.end(), objPtr->bytes);
+ objPtr->bytes[objPtr->length] = '\0';
+}
+
+static void port_update_string(Tcl_Obj *objPtr)
+{
+ const Context *ctx = static_cast<const Context *>(objPtr->internalRep.twoPtrValue.ptr1);
+ PortInfo *port_info = static_cast<PortInfo *>(objPtr->internalRep.twoPtrValue.ptr2);
+
+ std::string port_name = port_info->name.str(ctx);
+ set_tcl_obj_string(objPtr, port_name);
+}
+
+static void port_dup(Tcl_Obj *srcPtr, Tcl_Obj *dupPtr)
+{
+ dupPtr->internalRep.twoPtrValue = srcPtr->internalRep.twoPtrValue;
+}
+
+static void port_free(Tcl_Obj *objPtr) {}
+
+static void Tcl_SetStringResult(Tcl_Interp *interp, const std::string &s)
+{
+ char *copy = Tcl_Alloc(s.size() + 1);
+ std::copy(s.begin(), s.end(), copy);
+ copy[s.size()] = '\0';
+ Tcl_SetResult(interp, copy, TCL_DYNAMIC);
+}
+
+static Tcl_ObjType port_object = {
+ "port", port_free, port_dup, port_update_string, port_set_from_any,
+};
+
+static int get_ports(ClientData data, Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])
+{
+ const Context *ctx = static_cast<const Context *>(data);
+ if (objc == 1) {
+ // Return list of all ports.
+ Tcl_SetStringResult(interp, "Unimplemented");
+ return TCL_ERROR;
+ } else if (objc == 2) {
+ const char *arg0 = Tcl_GetString(objv[1]);
+ IdString port_name = ctx->id(arg0);
+
+ auto iter = ctx->ports.find(port_name);
+ if (iter == ctx->ports.end()) {
+ Tcl_SetStringResult(interp, "Could not find port " + port_name.str(ctx));
+ return TCL_ERROR;
+ }
+
+ Tcl_Obj *result = Tcl_NewObj();
+ result->typePtr = &port_object;
+ result->internalRep.twoPtrValue.ptr1 = (void *)(ctx);
+ result->internalRep.twoPtrValue.ptr2 = (void *)(&iter->second);
+
+ result->bytes = nullptr;
+ port_update_string(result);
+
+ Tcl_SetObjResult(interp, result);
+ return TCL_OK;
+ } else {
+ return TCL_ERROR;
+ }
+}
+
+static int set_property(ClientData data, Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])
+{
+ // set_property <property> <value> <object>
+ if (objc != 4) {
+ Tcl_SetStringResult(interp, "Only simple 'set_property <property> <value> <object>' is supported");
+ return TCL_ERROR;
+ }
+
+ const char *property = Tcl_GetString(objv[1]);
+ const char *value = Tcl_GetString(objv[2]);
+ const Tcl_Obj *object = objv[3];
+
+ if (object->typePtr != &port_object) {
+ Tcl_SetStringResult(interp, "Only port objects are handled right now!");
+ return TCL_ERROR;
+ }
+
+ const Context *ctx = static_cast<const Context *>(object->internalRep.twoPtrValue.ptr1);
+ PortInfo *port_info = static_cast<PortInfo *>(object->internalRep.twoPtrValue.ptr2);
+ NPNR_ASSERT(port_info->net != nullptr);
+ CellInfo *cell = ctx->port_cells.at(port_info->name);
+
+ cell->attrs[ctx->id(property)] = Property(value);
+
+ return TCL_OK;
+}
+
+TclInterp::TclInterp(Context *ctx)
+{
+ interp = Tcl_CreateInterp();
+ NPNR_ASSERT(Tcl_Init(interp) == TCL_OK);
+
+ Tcl_RegisterObjType(&port_object);
+
+ NPNR_ASSERT(Tcl_Eval(interp, "rename unknown _original_unknown") == TCL_OK);
+ NPNR_ASSERT(Tcl_Eval(interp, "proc unknown args {\n"
+ " set result [scan [lindex $args 0] \"%d\" value]\n"
+ " if { $result == 1 && [llength $args] == 1 } {\n"
+ " return \\[$value\\]\n"
+ " } else {\n"
+ " uplevel 1 [list _original_unknown {*}$args]\n"
+ " }\n"
+ "}") == TCL_OK);
+ Tcl_CreateObjCommand(interp, "get_ports", get_ports, ctx, nullptr);
+ Tcl_CreateObjCommand(interp, "set_property", set_property, ctx, nullptr);
+}
+
+TclInterp::~TclInterp() { Tcl_DeleteInterp(interp); }
+
+NEXTPNR_NAMESPACE_END
diff --git a/fpga_interchange/xdc.h b/fpga_interchange/xdc.h
new file mode 100644
index 00000000..c6b80870
--- /dev/null
+++ b/fpga_interchange/xdc.h
@@ -0,0 +1,33 @@
+/*
+ * nextpnr -- Next Generation Place and Route
+ *
+ * Copyright (C) 2021 Symbiflow Authors
+ *
+ * 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.
+ *
+ */
+
+#include <tcl.h>
+#include "nextpnr.h"
+
+NEXTPNR_NAMESPACE_BEGIN
+
+struct TclInterp
+{
+ TclInterp(Context *ctx);
+ ~TclInterp();
+
+ Tcl_Interp *interp;
+};
+
+NEXTPNR_NAMESPACE_END
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-04 05:26:46 +0000