diff options
Diffstat (limited to 'ice40')
| -rw-r--r-- | ice40/arch.h | 35 |
1 files changed, 1 insertions, 34 deletions
diff --git a/ice40/arch.h b/ice40/arch.h index 8428dc29..36e34d7b 100644 --- a/ice40/arch.h +++ b/ice40/arch.h @@ -328,28 +328,15 @@ struct ArchArgs std::string package; }; -/// Forward declare proxy classes for Arch. - class ArchRWProxyMethods; class ArchRProxyMethods; class ArchRWProxy; class ArchRProxy; - -/// Arch/Context -// Arch is the main state class of the PnR algorithms. It keeps note of mapped -// cells/nets, locked switches, etc. -// -// In order to mutate state in Arch, you can do one of two things: -// - directly call one of the wrapper methods to mutate state -// - get a read or readwrite proxy to the Arch, and call methods on it - class Arch : public BaseCtx { - // We let proxy methods access our state. friend class ArchRWProxyMethods; friend class ArchRProxyMethods; - // We let proxy objects access our mutex. friend class ArchRWProxy; friend class ArchRProxy; private: @@ -372,13 +359,7 @@ public: ArchArgs args; Arch(ArchArgs args); - // Get a readwrite proxy to arch - this will keep a readwrite lock on the - // entire architecture until the proxy object goes out of scope. ArchRWProxy rwproxy(void); - // Get a read-only proxy to arch - this will keep a read lock on the - // entire architecture until the proxy object goes out of scope. Other read - // locks can be taken while this one still exists. Ie., the UI can draw - // elements while the PnR is going a RO operation. ArchRProxy rproxy(void) const; std::string getChipName(); @@ -397,9 +378,6 @@ public: /// Wrappers around getting a r(w)proxy and calling a single method. // Deprecated: please acquire a proxy yourself and call the methods // you want on it. - // Warning: these will content with locks taken by the r(w)proxies, and - // thus can cause difficult to debug deadlocks - we'll be getting rid of - // them because of that. void unbindWire(WireId wire); void unbindPip(PipId pip); void unbindBel(BelId bel); @@ -576,7 +554,6 @@ public: // ------------------------------------------------- - // TODO(q3k) move this to archproxies? GroupId getGroupByName(IdString name) const; IdString getGroupName(GroupId group) const; std::vector<GroupId> getGroups() const; @@ -587,8 +564,6 @@ public: // ------------------------------------------------- - // These are also specific to the chip and not state, so they're available - // on arch directly. void estimatePosition(BelId bel, int &x, int &y, bool &gb) const; delay_t estimateDelay(WireId src, WireId dst) const; delay_t getDelayEpsilon() const { return 20; } @@ -633,9 +608,7 @@ public: IdString id_dff_en, id_neg_clk; }; -// Read-only methods on Arch that require state access. class ArchRProxyMethods { - // We let proxy objects access our private constructors. friend class ArchRProxy; friend class ArchRWProxy; private: @@ -668,6 +641,7 @@ public: WireId getWireBelPin(BelId bel, PortPin pin) const; PipId getPipByName(IdString name) const; + IdString getConflictingWireNet(WireId wire) const; IdString getConflictingPipNet(PipId pip) const; IdString getConflictingBelCell(BelId bel) const; @@ -679,8 +653,6 @@ public: BelId getBelByName(IdString name) const; }; -// A proxy object that keeps an Arch shared/readonly lock until it goes out -// of scope. All const/read-only ArchRProxyMethods are available on it. class ArchRProxy : public ArchRProxyMethods { friend class Arch; friend class ArchRWProxy; @@ -703,9 +675,7 @@ public: } }; -// State mutating methods on Arch. class ArchRWProxyMethods { - // We let proxy objects access our private constructors. friend class ArchRWProxy; private: Arch *parent_; @@ -721,12 +691,9 @@ public: void bindWire(WireId wire, IdString net, PlaceStrength strength); void bindPip(PipId pip, IdString net, PlaceStrength strength); void bindBel(BelId bel, IdString cell, PlaceStrength strength); - // Returned pointer is valid as long as Proxy object exists. CellInfo *getCell(IdString cell); }; -// A proxy object that keeps an Arch readwrite lock until it goes out of scope. -// All ArchRProxyMethods and ArchRWProxyMethods are available on it. class ArchRWProxy : public ArchRProxyMethods, public ArchRWProxyMethods { friend class Arch; private: |