TraceHostMem Class Reference

Inheritance diagram for TraceHostMem:

Collaboration diagram for TraceHostMem:

Classes
struct	TraceHostMemRegion

Public Member Functions
	TraceHostMem (TraceAccelerator &conn)
virtual std::unique_ptr< HostMemRegion >	allocate (std::size_t size, HostMem::Options opts) const override
	Allocate a region of host memory in accelerator accessible address space.
virtual bool	mapMemory (void *ptr, std::size_t size, HostMem::Options opts) const override
	Try to make a region of host memory accessible to the accelerator.
virtual void	unmapMemory (void *ptr) const override
	Unmap memory which was previously mapped with 'mapMemory'.
Public Member Functions inherited from esi::services::HostMem
virtual	~HostMem ()=default
virtual std::string	getServiceSymbol () const override
virtual void	start ()
	In cases where necessary, enable host memory services.
	Service (AcceleratorConnection &conn)
Public Member Functions inherited from esi::services::Service
	Service (AcceleratorConnection &conn)
virtual	~Service ()=default
virtual Service *	getChildService (Service::Type service, AppIDPath id={}, std::string implName={}, ServiceImplDetails details={}, HWClientDetails clients={})
	Create a "child" service of this service.
virtual BundlePort *	getPort (AppIDPath id, const BundleType *type) const
	Get specialized port for this service to attach to the given appid path.
AcceleratorConnection &	getConnection () const

Private Attributes
TraceAccelerator::Impl &	impl

Additional Inherited Members
Public Types inherited from esi::services::Service
using	Type = const std::type_info &
Static Public Attributes inherited from esi::services::HostMem
static constexpr std::string_view	StdName = "esi.service.std.hostmem"
Protected Attributes inherited from esi::services::Service
AcceleratorConnection &	conn

Detailed Description

Definition at line 282 of file Trace.cpp.

Constructor & Destructor Documentation

TraceHostMem()

TraceHostMem::TraceHostMem ( TraceAccelerator &  conn )

inline

Definition at line 284 of file Trace.cpp.

Member Function Documentation

allocate()

virtual std::unique_ptr< HostMemRegion > TraceHostMem::allocate ( std::size_t  size, HostMem::Options  opts  ) const

inlineoverridevirtual

Allocate a region of host memory in accelerator accessible address space.

Implements esi::services::HostMem.

Definition at line 307 of file Trace.cpp.

References esi::services::HostMem::Options::useLargePages, and esi::services::HostMem::Options::writeable.

mapMemory()

virtual bool TraceHostMem::mapMemory ( void *  ptr, std::size_t  size, HostMem::Options  opts  ) const

inlineoverridevirtual

Try to make a region of host memory accessible to the accelerator.

Returns 'false' on failure. It is optional for an accelerator backend to implement this, so client code needs to have a fallback for when this returns 'false'. On success, it is the client's responsibility to ensure that the memory eventually gets unmapped.

Reimplemented from esi::services::HostMem.

Definition at line 317 of file Trace.cpp.

References esi::services::HostMem::Options::useLargePages, and esi::services::HostMem::Options::writeable.

unmapMemory()

virtual void TraceHostMem::unmapMemory ( void *  ptr ) const

inlineoverridevirtual

Unmap memory which was previously mapped with 'mapMemory'.

Undefined behavior when called with a pointer which was not previously mapped.

Reimplemented from esi::services::HostMem.

Definition at line 327 of file Trace.cpp.

Member Data Documentation

impl

TraceAccelerator::Impl& TraceHostMem::impl

private

Definition at line 333 of file Trace.cpp.

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The documentation for this class was generated from the following file:

• /home/runner/work/circt-www/circt-www/circt_src/lib/Dialect/ESI/runtime/cpp/lib/backends/Trace.cpp