gem5  v22.1.0.0
Public Member Functions | Private Member Functions | Private Attributes | List of all members
gem5::AMDGPUVM::AGPTranslationGen Class Reference

Translation range generators. More...

#include <amdgpu_vm.hh>

Inheritance diagram for gem5::AMDGPUVM::AGPTranslationGen:
gem5::TranslationGen

Public Member Functions

 AGPTranslationGen (AMDGPUVM *_vm, Addr vaddr, Addr size)
 
- Public Member Functions inherited from gem5::TranslationGen
 TranslationGen (Addr new_start, Addr new_size)
 The starting virtual address and the size of the entire region being translated. More...
 
virtual ~TranslationGen ()
 
Addr start () const
 
Addr size () const
 
const_iterator begin () const
 
const_iterator end () const
 

Private Member Functions

void translate (Range &range) const override
 Subclasses implement this function to complete TranslationGen. More...
 

Private Attributes

AMDGPUVMvm
 

Additional Inherited Members

- Public Types inherited from gem5::TranslationGen
using const_iterator = TranslationGenConstIterator
 
- Protected Attributes inherited from gem5::TranslationGen
Addr _start
 
Addr _size
 

Detailed Description

Translation range generators.

AGP - Legacy interface to device memory. Addr range is set via MMIO GART - Legacy privledged translation table. Table in device memory MMHUB - Shadow range of VRAM

Definition at line 302 of file amdgpu_vm.hh.

Constructor & Destructor Documentation

◆ AGPTranslationGen()

gem5::AMDGPUVM::AGPTranslationGen::AGPTranslationGen ( AMDGPUVM _vm,
Addr  vaddr,
Addr  size 
)
inline

Definition at line 310 of file amdgpu_vm.hh.

Member Function Documentation

◆ translate()

void gem5::AMDGPUVM::AGPTranslationGen::translate ( Range range) const
overrideprivatevirtual

Subclasses implement this function to complete TranslationGen.

It should accept a Range reference which will have its "vaddr" field set to the virtual address to translate, and the "size" field set to the remaining size of the entire region being translated.

If there is a fault performing the translation of "vaddr", then this function should set the "fault" field of range and return.

If the translation was successful, this method should set "paddr" to the corresponding physical address, and set "size" to the number of bytes corresponding to the translation. Or more precisely, size should be set to the maximum "N" where vaddr + n maps to paddr + n for all 0 <= n <= N.

Implements gem5::TranslationGen.

Definition at line 258 of file amdgpu_vm.cc.

References AMDGPU_AGP_PAGE_SIZE, DPRINTF, gem5::AMDGPUVM::getAGPBase(), gem5::AMDGPUVM::getAGPBot(), gem5::AMDGPUVM::inAGP(), gem5::TranslationGen::Range::paddr, gem5::roundUp(), gem5::TranslationGen::Range::size, gem5::TranslationGen::Range::vaddr, and vm.

Member Data Documentation

◆ vm

AMDGPUVM* gem5::AMDGPUVM::AGPTranslationGen::vm
private

Definition at line 305 of file amdgpu_vm.hh.

Referenced by translate().


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

Generated on Wed Dec 21 2022 10:23:15 for gem5 by doxygen 1.9.1