gem5::Plic::PlicRegisters Class Reference

MMIO Registers. More...

Inheritance diagram for gem5::Plic::PlicRegisters:

Public Member Functions
	PlicRegisters (const std::string &name, Addr base, Plic *plic)
void	init ()
Public Member Functions inherited from gem5::RegisterBank< ByteOrder::little >
void	setDebugFlag (const ::gem5::debug::SimpleFlag &flag)
constexpr	RegisterBank (const std::string &new_name, Addr new_base)
virtual	~RegisterBank ()
void	addRegisters (std::initializer_list< RegisterAdder > adders)
void	addRegistersAt (std::initializer_list< RegisterAdder > adders)
void	addRegister (RegisterAdder reg)
Addr	base () const
Addr	size () const
const std::string &	name () const
virtual void	read (Addr addr, void *buf, Addr bytes)
virtual void	write (Addr addr, const void *buf, Addr bytes)
virtual void	reset ()

Public Attributes
const Addr	pendingStart = 0x1000
const Addr	enableStart = 0x2000
const Addr	thresholdStart = 0x0200000
const Addr	enablePadding = 0x80
const Addr	thresholdPadding = 0x1000
const Addr	maxBankSize = 0x4000000
std::vector< Register32 >	priority
std::vector< Register32 >	pending
std::vector< std::vector< Register32 > >	enable
std::vector< Register32 >	threshold
std::vector< Register32 >	claim
std::vector< RegisterRaz >	enable_holes
std::vector< RegisterRaz >	claim_holes
std::vector< RegisterRaz >	reserved
Plic *	plic

Additional Inherited Members
Public Types inherited from gem5::RegisterBank< ByteOrder::little >
using	Register8
using	Register8LE
using	Register8BE
using	Register16
using	Register16LE
using	Register16BE
using	Register32
using	Register32LE
using	Register32BE
using	Register64
using	Register64LE
using	Register64BE
Static Public Member Functions inherited from gem5::RegisterBank< ByteOrder::little >
static constexpr Data	readWithMask (const Data &value, const Data &bitmask)
static constexpr Data	writeWithMask (const Data &old, const Data &value, const Data &bitmask)

Detailed Description

MMIO Registers.

Priority (0-7):

• memory map: 0x0000000 - 0x0000FFC (1024 sources, 32 bits each)
• gem5: vector<uint32_t> (index: source_id, size: n_src)

... reserved[0]

Pending:

• memory map: 0x0001000 - 0x0001080 (1024 sources, 1 bit each)
• gem5: vector<bitset<32>> (index: addr_offset, size: ceil(n_src/32))

... reserved[1]

Enable:

• memory map: 0x0002000 - 0x01F2000 (15872 contexts, 1024 sources, 1 bit each)
• gem5: vector<vector<bitset<32>>> (index: [context_id addr_offset], size: [n_context, ceil(n_src/32)]) ... reserved[2]

Threshold:

• memory map: 0x0200000 - 0x3FFFFFC (15872 contexts, 32-bit each, 0x1000 byte spacing)
• gem5: vector<uint32_t> (index: context_id, size: n_context)

Claim / Complete:

• memory map: 0x0200004 - 0x3FFFFFC (15872 contexts, 32-bit each, 0x1000 byte spacing)
• gem5: getter / setter functions

... reserved[3]

Definition at line 197 of file plic.hh.

Constructor & Destructor Documentation

PlicRegisters()

gem5::Plic::PlicRegisters::PlicRegisters ( const std::string & name, Addr base, Plic * plic )

inline

Definition at line 217 of file plic.hh.

Member Function Documentation

init()

void gem5::Plic::PlicRegisters::init

(

)

Definition at line 204 of file plic.cc.

References gem5::RegisterBank< ByteOrder::little >::addRegister(), claim, claim_holes, gem5::Plic::contextConfigs, enable, enable_holes, enablePadding, enableStart, gem5::ArmISA::i, maxBankSize, gem5::Plic::nSrc, gem5::Plic::nSrc32, pending, pendingStart, gem5::BasicPioDevice::pioSize, plic, priority, gem5::Plic::readClaim(), reserved, threshold, thresholdPadding, thresholdStart, gem5::Plic::writeClaim(), gem5::Plic::writeEnable(), gem5::Plic::writePriority(), and gem5::Plic::writeThreshold().

Referenced by gem5::Plic::init().

Member Data Documentation

claim

std::vector<Register32> gem5::Plic::PlicRegisters::claim

Definition at line 212 of file plic.hh.

Referenced by init(), gem5::Plic::serialize(), and gem5::Plic::unserialize().

claim_holes

std::vector<RegisterRaz> gem5::Plic::PlicRegisters::claim_holes

Definition at line 214 of file plic.hh.

Referenced by init().

enable

std::vector<std::vector<Register32> > gem5::Plic::PlicRegisters::enable

Definition at line 210 of file plic.hh.

Referenced by init(), gem5::Plic::post(), gem5::Plic::serialize(), gem5::Plic::unserialize(), and gem5::Plic::writePriority().

enable_holes

std::vector<RegisterRaz> gem5::Plic::PlicRegisters::enable_holes

Definition at line 213 of file plic.hh.

Referenced by init().

enablePadding

const Addr gem5::Plic::PlicRegisters::enablePadding = 0x80

Definition at line 203 of file plic.hh.

Referenced by init().

enableStart

const Addr gem5::Plic::PlicRegisters::enableStart = 0x2000

Definition at line 201 of file plic.hh.

Referenced by init().

maxBankSize

const Addr gem5::Plic::PlicRegisters::maxBankSize = 0x4000000

Definition at line 205 of file plic.hh.

Referenced by init().

pending

std::vector<Register32> gem5::Plic::PlicRegisters::pending

Definition at line 209 of file plic.hh.

Referenced by gem5::Plic::clear(), init(), gem5::Plic::post(), gem5::Plic::readClaim(), gem5::Plic::serialize(), gem5::Plic::unserialize(), and gem5::Plic::writePriority().

pendingStart

const Addr gem5::Plic::PlicRegisters::pendingStart = 0x1000

Definition at line 200 of file plic.hh.

Referenced by init().

plic

Plic* gem5::Plic::PlicRegisters::plic

Definition at line 221 of file plic.hh.

Referenced by init().

priority

std::vector<Register32> gem5::Plic::PlicRegisters::priority

Definition at line 208 of file plic.hh.

Referenced by init(), gem5::Plic::post(), gem5::Plic::serialize(), and gem5::Plic::unserialize().

reserved

std::vector<RegisterRaz> gem5::Plic::PlicRegisters::reserved

Definition at line 215 of file plic.hh.

Referenced by init().

threshold

std::vector<Register32> gem5::Plic::PlicRegisters::threshold

Definition at line 211 of file plic.hh.

Referenced by init(), gem5::Plic::serialize(), gem5::Plic::unserialize(), and gem5::Plic::updateInt().

thresholdPadding

const Addr gem5::Plic::PlicRegisters::thresholdPadding = 0x1000

Definition at line 204 of file plic.hh.

Referenced by init().

thresholdStart

const Addr gem5::Plic::PlicRegisters::thresholdStart = 0x0200000

Definition at line 202 of file plic.hh.

Referenced by init().

---

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

• dev/riscv/plic.hh
• dev/riscv/plic.cc