Inheritance diagram for TraceHostMem:

Collaboration diagram for TraceHostMem:

[legend]

Classes
struct	TraceHostMemRegion

Public Member Functions
	TraceHostMem (TraceAccelerator::Impl &impl)

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. More...

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. More...

virtual void	unmapMemory (void *ptr) const override
	Unmap memory which was previously mapped with 'mapMemory'. More...

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. More...

Public Member Functions inherited from esi::services::Service
virtual	~Service ()=default

virtual Service *	getChildService (AcceleratorConnection *conn, Service::Type service, AppIDPath id={}, std::string implName={}, ServiceImplDetails details={}, HWClientDetails clients={})
	Create a "child" service of this service. More...

virtual ServicePort *	getPort (AppIDPath id, const BundleType *type, const std::map< std::string, ChannelPort & > &, AcceleratorConnection &) const
	Get specialized port for this service to attach to the given appid path. More...

Private Attributes
TraceAccelerator::Impl &	impl

Additional Inherited Members
Public Types inherited from esi::services::Service
using	Type = const std::type_info &

Detailed Description

Definition at line 287 of file Trace.cpp.

Constructor & Destructor Documentation

◆ TraceHostMem()

TraceHostMem::TraceHostMem ( TraceAccelerator::Impl & impl )

inline

Definition at line 289 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 312 of file Trace.cpp.

References esi::backends::trace::TraceAccelerator::impl, 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 322 of file Trace.cpp.

References esi::backends::trace::TraceAccelerator::impl, esi::services::HostMem::Options::useLargePages, and esi::services::HostMem::Options::writeable.