72 lines
2.8 KiB
C
72 lines
2.8 KiB
C
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#ifndef PHYSICAL_PB_H
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#define PHYSICAL_PB_H
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/********************************************************************
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* Include header files required by the data structure definition
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*******************************************************************/
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/* Headers from vtrutil library */
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#include "vtr_geometry.h"
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#include "vtr_vector.h"
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/* Headers from readarch library */
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#include "physical_types.h"
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/* Headers from vpr library */
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#include "atom_netlist_fwd.h"
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#include "physical_pb_fwd.h"
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/* Begin namespace openfpga */
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namespace openfpga {
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/********************************************************************
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* PhysicalPb object aims to store the mapped result for a programmable
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* logical block like the VPR data structure t_pb does.
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* Differently, it is tailored for the physical implementation of a
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* programmable block.
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* - It does not contain multi-mode for each child physical_pb while
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* VPR t_pb does have multi-mode. This is because that the hardware
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* implementation is unique
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* - It contains mode-selection bits for each primitive physical_pb
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* This is used to help bitstream generator to configure a primitive
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* circuit in the correct mode
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* - A primitive LUT can be mapped to various truth tables.
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* This is true for any fracturable LUTs.
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*******************************************************************/
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class PhysicalPb {
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public: /* Types and ranges */
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typedef vtr::vector<PhysicalPbId, PhysicalPbId>::const_iterator physical_pb_iterator;
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typedef vtr::Range<physical_pb_iterator> physical_pb_range;
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public: /* Public aggregators */
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physical_pb_range pbs() const;
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std::string name(const PhysicalPbId& pb) const;
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PhysicalPbId find_pb(const t_pb_graph_node* name) const;
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PhysicalPbId parent(const PhysicalPbId& pb) const;
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public: /* Public mutators */
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PhysicalPbId create_pb(const t_pb_graph_node* pb_graph_node);
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void add_child(const PhysicalPbId& parent,
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const PhysicalPbId& child,
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const t_pb_type* child_type);
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public: /* Public validators/invalidators */
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bool valid_pb_id(const PhysicalPbId& pb_id) const;
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bool empty() const;
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private: /* Internal Data */
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vtr::vector<PhysicalPbId, PhysicalPbId> pb_ids_;
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vtr::vector<PhysicalPbId, const t_pb_graph_node*> pb_graph_nodes_;
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vtr::vector<PhysicalPbId, std::string> names_;
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vtr::vector<PhysicalPbId, std::vector<AtomBlockId>> mapped_atoms_;
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/* Child pbs are organized as [0..num_child_pb_types-1][0..child_pb_type->num_pb-1] */
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vtr::vector<PhysicalPbId, std::map<const t_pb_type*, std::vector<PhysicalPbId>>> child_pbs_;
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vtr::vector<PhysicalPbId, PhysicalPbId> parent_pbs_;
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vtr::vector<PhysicalPbId, std::vector<size_t>> mode_bits_;
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/* Fast lookup */
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std::map<const t_pb_graph_node*, PhysicalPbId> type2id_map_;
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};
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} /* End namespace openfpga*/
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#endif
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