diff options
Diffstat (limited to 'generic/arch.h')
| -rw-r--r-- | generic/arch.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/generic/arch.h b/generic/arch.h index 5b5d8c55..58e5faa4 100644 --- a/generic/arch.h +++ b/generic/arch.h @@ -25,6 +25,11 @@ NEXTPNR_NAMESPACE_BEGIN struct ArchArgs { + // Number of LUT inputs + int K = 4; + // y = mx + c relationship between distance and delay for interconnect + // delay estimates + double delayScale = 0.1, delayOffset = 0; }; struct WireInfo; @@ -127,6 +132,9 @@ struct Arch : BaseCtx void setPipAttr(IdString pip, IdString key, const std::string &value); void setBelAttr(IdString bel, IdString key, const std::string &value); + void setLutK(int K); + void setDelayScaling(double scale, double offset); + // --------------------------------------------------------------- // Common Arch API. Every arch must provide the following methods. @@ -222,7 +230,7 @@ struct Arch : BaseCtx uint32_t getDelayChecksum(delay_t v) const { return 0; } bool getBudgetOverride(const NetInfo *net_info, const PortRef &sink, delay_t &budget) const; - bool pack() { return true; } + bool pack(); bool place(); bool route(); @@ -243,6 +251,11 @@ struct Arch : BaseCtx static const std::string defaultPlacer; static const std::vector<std::string> availablePlacers; + + // --------------------------------------------------------------- + // Internal usage + void assignArchInfo(); + bool cellsCompatible(const CellInfo **cells, int count) const; }; NEXTPNR_NAMESPACE_END |