diff options
Diffstat (limited to 'ice40/arch.h')
-rw-r--r-- | ice40/arch.h | 130 |
1 files changed, 27 insertions, 103 deletions
diff --git a/ice40/arch.h b/ice40/arch.h index 4311f4a5..5d4eaedf 100644 --- a/ice40/arch.h +++ b/ice40/arch.h @@ -22,9 +22,6 @@ #error Include "arch.h" via "nextpnr.h" only. #endif -#include <boost/thread/shared_lock_guard.hpp> -#include <boost/thread/shared_mutex.hpp> - NEXTPNR_NAMESPACE_BEGIN /**** Everything in this section must be kept in sync with chipdb.py ****/ @@ -330,11 +327,8 @@ struct ArchArgs /// Forward declare proxy classes for Arch. -class ArchRWProxyMethods; -class ArchRProxyMethods; -class ArchRWProxy; -class ArchRProxy; - +class ArchMutateMethods; +class ArchReadMethods; /// Arch/Context // Arch is the main state class of the PnR algorithms. It keeps note of mapped @@ -347,11 +341,8 @@ class ArchRProxy; 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; + friend class ArchMutateMethods; + friend class ArchReadMethods; private: // All of the following... std::vector<IdString> bel_to_cell; @@ -362,9 +353,6 @@ private: mutable std::unordered_map<IdString, int> wire_by_name; mutable std::unordered_map<IdString, int> pip_by_name; - // ... are guarded by the following lock: - mutable boost::shared_mutex mtx_; - public: const ChipInfoPOD *chip_info; const PackageInfoPOD *package_info; @@ -372,15 +360,6 @@ 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(); IdString archId() const { return id("ice40"); } @@ -632,22 +611,9 @@ public: }; // 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; +class ArchReadMethods : public BaseReadCtx { private: const Arch *parent_; - ArchRProxyMethods(const Arch *parent) : parent_(parent), chip_info(parent->chip_info), - bel_to_cell(parent->bel_to_cell), wire_to_net(parent->wire_to_net), - pip_to_net(parent->pip_to_net), switches_locked(parent->switches_locked), - bel_by_name(parent->bel_by_name), wire_by_name(parent->wire_by_name), - pip_by_name(parent->pip_by_name) {} - ArchRProxyMethods(ArchRProxyMethods &&other) noexcept : ArchRProxyMethods(other.parent_) {} - ArchRProxyMethods(const ArchRProxyMethods &other) : ArchRProxyMethods(other.parent_) {} - - // Let methods access hot members directly without having to go through - // parent_. const ChipInfoPOD *chip_info; const std::vector<IdString> &bel_to_cell; const std::vector<IdString> &wire_to_net; @@ -656,8 +622,17 @@ private: std::unordered_map<IdString, int> &bel_by_name; std::unordered_map<IdString, int> &wire_by_name; std::unordered_map<IdString, int> &pip_by_name; + public: - ~ArchRProxyMethods() noexcept { } + ~ArchReadMethods() noexcept { } + ArchReadMethods(const Arch *parent) : BaseReadCtx(parent), parent_(parent), + chip_info(parent->chip_info), bel_to_cell(parent->bel_to_cell), + wire_to_net(parent->wire_to_net), pip_to_net(parent->pip_to_net), + switches_locked(parent->switches_locked), + bel_by_name(parent->bel_by_name), wire_by_name(parent->wire_by_name), + pip_by_name(parent->pip_by_name) {} + ArchReadMethods(ArchReadMethods &&other) noexcept : ArchReadMethods(other.parent_) {} + ArchReadMethods(const ArchReadMethods &other) : ArchReadMethods(other.parent_) {} /// Perform placement validity checks, returning false on failure (all implemented in arch_place.cc) @@ -693,44 +668,11 @@ public: std::vector<GraphicElement> getDecalGraphics(DecalId decal) 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; -private: - boost::shared_mutex *lock_; - ArchRProxy(const Arch *parent) : ArchRProxyMethods(parent), lock_(&parent->mtx_) - { - lock_->lock_shared(); - } - -public: - ~ArchRProxy() { - if (lock_ != nullptr) { - lock_->unlock_shared(); - } - } - ArchRProxy(ArchRProxy &&other) : ArchRProxyMethods(other), lock_(other.lock_) - { - other.lock_ = nullptr; - } -}; - // State mutating methods on Arch. -class ArchRWProxyMethods { - // We let proxy objects access our private constructors. - friend class ArchRWProxy; +class ArchMutateMethods : public BaseMutateCtx { + friend class MutateContext; private: Arch *parent_; - ArchRWProxyMethods(Arch *parent) : parent_(parent), chip_info(parent->chip_info), - bel_to_cell(parent->bel_to_cell), wire_to_net(parent->wire_to_net), - pip_to_net(parent->pip_to_net), switches_locked(parent->switches_locked), - bel_by_name(parent->bel_by_name), wire_by_name(parent->wire_by_name), - pip_by_name(parent->pip_by_name) {} - ArchRWProxyMethods(ArchRWProxyMethods &&other) : ArchRWProxyMethods(other.parent_) {} - ArchRWProxyMethods(const ArchRWProxyMethods &other) : ArchRWProxyMethods(other.parent_) {} - const ChipInfoPOD *chip_info; std::vector<IdString> &bel_to_cell; std::vector<IdString> &wire_to_net; @@ -739,8 +681,17 @@ private: std::unordered_map<IdString, int> &bel_by_name; std::unordered_map<IdString, int> &wire_by_name; std::unordered_map<IdString, int> &pip_by_name; + public: - ~ArchRWProxyMethods() {} + ArchMutateMethods(Arch *parent) : BaseMutateCtx(parent), parent_(parent), + chip_info(parent->chip_info), bel_to_cell(parent->bel_to_cell), + wire_to_net(parent->wire_to_net), pip_to_net(parent->pip_to_net), + switches_locked(parent->switches_locked), + bel_by_name(parent->bel_by_name), wire_by_name(parent->wire_by_name), + pip_by_name(parent->pip_by_name) {} + ArchMutateMethods(ArchMutateMethods &&other) : ArchMutateMethods(other.parent_) {} + ArchMutateMethods(const ArchMutateMethods &other) : ArchMutateMethods(other.parent_) {} + ~ArchMutateMethods() {} void unbindWire(WireId wire); void unbindPip(PipId pip); @@ -750,33 +701,6 @@ public: void bindBel(BelId bel, IdString cell, PlaceStrength strength); // Returned pointer is valid as long as Proxy object exists. CellInfo *getCell(IdString cell); - - - // Methods to be used by UI for detecting whether we need to redraw. - UIUpdatesRequired getUIUpdatesRequired(void); -}; - -// 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: - boost::shared_mutex *lock_; - ArchRWProxy(Arch *parent) : ArchRProxyMethods(parent), ArchRWProxyMethods(parent), lock_(&parent->mtx_) { - lock_->lock(); - } - -public: - ArchRWProxy(ArchRWProxy &&other) : ArchRProxyMethods(other), ArchRWProxyMethods(other), lock_(other.lock_) - { - other.lock_ = nullptr; - } - ~ArchRWProxy() - { - if (lock_ != nullptr) { - lock_->unlock(); - } - } }; NEXTPNR_NAMESPACE_END |