gem5
v20.1.0.0
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Special instance of CacheBlk for use with tempBlk that deals with its block address regeneration. More...
#include <cache_blk.hh>
Public Member Functions | |
TempCacheBlk (unsigned size) | |
Creates a temporary cache block, with its own storage. More... | |
TempCacheBlk (const TempCacheBlk &)=delete | |
TempCacheBlk & | operator= (const TempCacheBlk &)=delete |
~TempCacheBlk () | |
void | invalidate () override |
Invalidate the block and clear all state. More... | |
void | insert (const Addr addr, const bool is_secure, const int src_requestor_ID=0, const uint32_t task_ID=0) override |
Set member variables when a block insertion occurs. More... | |
Addr | getAddr () const |
Get block's address. More... | |
Public Member Functions inherited from CacheBlk | |
CacheBlk () | |
CacheBlk (const CacheBlk &)=delete | |
CacheBlk & | operator= (const CacheBlk &)=delete |
virtual | ~CacheBlk () |
bool | isWritable () const |
Checks the write permissions of this block. More... | |
bool | isReadable () const |
Checks the read permissions of this block. More... | |
bool | isValid () const |
Checks that a block is valid. More... | |
bool | isDirty () const |
Check to see if a block has been written. More... | |
bool | wasPrefetched () const |
Check if this block was the result of a hardware prefetch, yet to be touched. More... | |
bool | isSecure () const |
Check if this block holds data from the secure memory space. More... | |
virtual void | setValid () |
Set valid bit. More... | |
virtual void | setSecure () |
Set secure bit. More... | |
Tick | getWhenReady () const |
Get tick at which block's data will be available for access. More... | |
void | setWhenReady (const Tick tick) |
Set tick at which block's data will be available for access. More... | |
void | trackLoadLocked (PacketPtr pkt) |
Track the fact that a local locked was issued to the block. More... | |
void | clearLoadLocks (const RequestPtr &req) |
Clear the any load lock that intersect the request, and is from a different context. More... | |
std::string | print () const override |
Pretty-print tag, set and way, and interpret state bits to readable form including mapping to a MOESI state. More... | |
bool | checkWrite (PacketPtr pkt) |
Handle interaction of load-locked operations and stores. More... | |
Public Member Functions inherited from ReplaceableEntry | |
ReplaceableEntry ()=default | |
virtual | ~ReplaceableEntry ()=default |
virtual void | setPosition (const uint32_t set, const uint32_t way) |
Set both the set and way. More... | |
uint32_t | getSet () const |
Get set number. More... | |
uint32_t | getWay () const |
Get way number. More... | |
Private Attributes | |
Addr | _addr |
Copy of the block's address, used to regenerate tempBlock's address. More... | |
Additional Inherited Members | |
Public Types inherited from CacheBlk | |
typedef unsigned | State |
block state: OR of CacheBlkStatusBit More... | |
Public Attributes inherited from CacheBlk | |
uint32_t | task_id |
Task Id associated with this block. More... | |
Addr | tag |
Data block tag value. More... | |
uint8_t * | data |
Contains a copy of the data in this block for easy access. More... | |
State | status |
The current status of this block. More... | |
Tick | whenReady |
Which curTick() will this block be accessible. More... | |
unsigned | refCount |
Number of references to this block since it was brought in. More... | |
int | srcRequestorId |
holds the source requestor ID for this block. More... | |
Tick | tickInserted |
Tick on which the block was inserted in the cache. More... | |
Public Attributes inherited from ReplaceableEntry | |
std::shared_ptr< ReplacementData > | replacementData |
Replacement data associated to this entry. More... | |
Protected Attributes inherited from CacheBlk | |
std::list< Lock > | lockList |
List of thread contexts that have performed a load-locked (LL) on the block since the last store. More... | |
Protected Attributes inherited from ReplaceableEntry | |
uint32_t | _set |
Set to which this entry belongs. More... | |
uint32_t | _way |
Way (relative position within the set) to which this entry belongs. More... | |
Special instance of CacheBlk for use with tempBlk that deals with its block address regeneration.
Definition at line 441 of file cache_blk.hh.
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inline |
Creates a temporary cache block, with its own storage.
size | The size (in bytes) of this cache block. |
Definition at line 454 of file cache_blk.hh.
References CacheBlk::data.
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delete |
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inline |
Definition at line 460 of file cache_blk.hh.
References CacheBlk::data.
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inline |
Get block's address.
Definition at line 495 of file cache_blk.hh.
References _addr.
Referenced by BaseCache::regenerateBlkAddr().
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inlineoverridevirtual |
Set member variables when a block insertion occurs.
Resets reference count to 1 (the insertion counts as a reference), and touch block if it hadn't been touched previously. Sets the insertion tick to the current tick. Marks the block valid.
tag | Block address tag. |
is_secure | Whether the block is in secure space or not. |
src_requestor_ID | The source requestor ID. |
task_ID | The new task ID. |
Reimplemented from CacheBlk.
Definition at line 471 of file cache_blk.hh.
References _addr, addr, CacheBlk::setSecure(), CacheBlk::setValid(), and CacheBlk::status.
Referenced by BaseCache::handleFill().
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inlineoverridevirtual |
Invalidate the block and clear all state.
Reimplemented from CacheBlk.
Definition at line 465 of file cache_blk.hh.
References _addr, CacheBlk::invalidate(), and MaxAddr.
Referenced by BaseCache::invalidateBlock().
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delete |
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private |
Copy of the block's address, used to regenerate tempBlock's address.
Definition at line 447 of file cache_blk.hh.
Referenced by getAddr(), insert(), and invalidate().