generic: Cell timing support

Signed-off-by: David Shah <dave@ds0.me>

1 files changed, 34 insertions, 0 deletions

diff --git a/generic/arch.h b/generic/arch.h
index 02017c8d..92a2c331 100644
--- a/generic/arch.h
+++ b/generic/arch.h
@@ -86,6 +86,33 @@ struct GroupInfo
     DecalXY decalxy;
 };
 
+struct CellDelayKey
+{
+    IdString from, to;
+    inline bool operator==(const CellDelayKey &other) const { return from == other.from && to == other.to; }
+};
+
+NEXTPNR_NAMESPACE_END
+namespace std {
+template <> struct hash<NEXTPNR_NAMESPACE_PREFIX CellDelayKey>
+{
+    std::size_t operator()(const NEXTPNR_NAMESPACE_PREFIX CellDelayKey &dk) const noexcept
+    {
+        std::size_t seed = std::hash<NEXTPNR_NAMESPACE_PREFIX IdString>()(dk.from);
+        seed ^= std::hash<NEXTPNR_NAMESPACE_PREFIX IdString>()(dk.to) + 0x9e3779b9 + (seed << 6) + (seed >> 2);
+        return seed;
+    }
+};
+} // namespace std
+NEXTPNR_NAMESPACE_BEGIN
+
+struct CellTiming
+{
+    std::unordered_map<IdString, TimingPortClass> portClasses;
+    std::unordered_map<CellDelayKey, DelayInfo> combDelays;
+    std::unordered_map<IdString, std::vector<TimingClockingInfo>> clockingInfo;
+};
+
 struct Arch : BaseCtx
 {
     std::string chipName;
@@ -106,6 +133,8 @@ struct Arch : BaseCtx
     std::vector<std::vector<int>> tileBelDimZ;
     std::vector<std::vector<int>> tilePipDimZ;
 
+    std::unordered_map<IdString, CellTiming> cellTiming;
+
     void addWire(IdString name, IdString type, int x, int y);
     void addPip(IdString name, IdString type, IdString srcWire, IdString dstWire, DelayInfo delay, Loc loc);
     void addAlias(IdString name, IdString type, IdString srcWire, IdString dstWire, DelayInfo delay);
@@ -133,6 +162,11 @@ struct Arch : BaseCtx
     void setLutK(int K);
     void setDelayScaling(double scale, double offset);
 
+    void addCellTimingClock(IdString cell, IdString port);
+    void addCellTimingDelay(IdString cell, IdString fromPort, IdString toPort, DelayInfo delay);
+    void addCellTimingSetupHold(IdString cell, IdString port, IdString clock, DelayInfo setup, DelayInfo hold);
+    void addCellTimingClockToOut(IdString cell, IdString port, IdString clock, DelayInfo clktoq);
+
     // ---------------------------------------------------------------
     // Common Arch API. Every arch must provide the following methods.