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2018-06-01mem-cache: Privatize extractSetDaniel R. Carvalho
Only BaseSetAssoc uses extractSet(). Besides, skewed caches need the way information to know which set an address is located at. Change-Id: Id222e907dc550d053018561bb2683cfc415471ec Reviewed-on: https://gem5-review.googlesource.com/9962 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-06-01mem-cache: Create an address aware TempCacheBlkDaniel R. Carvalho
tempBlock has its member variables manually set in order to allow it to be used in the block address regeneration function. This is not necessary, and ti can be simply given the address, so it does not need to be aware of set and tag. This will simplify implementation of sector and skewed caches. Change-Id: Iaffb10c323509722cd5589fe1030b818d43336d6 Reviewed-on: https://gem5-review.googlesource.com/9961 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-06-01mem-cache: Fix secure bit modificationDaniel R. Carvalho
Secure bit was being updated outside insertion. Change-Id: I83d9b010e8cf64013bbea9bae3ea68b0c414a189 Reviewed-on: https://gem5-review.googlesource.com/10622 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-05-31mem-cache: Replace block visitor with std::functionNikos Nikoleris
This change modifies forEachBlk tags function to accept std::function as parameter. It also adds an anyBlk tags function that given a condition, it iterates through the blocks and returns whether the condition is met. Finally, it uses forEachBlk to implement the print, computeStats and cleanupRefs functions that also work for the FALRU class. Change-Id: I2f75f4baa1fdd5a1d343a63ecace3eb9458fbf03 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/10621 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-05-31mem-cache: Fix include directives in the cache related classesNikos Nikoleris
Change-Id: I111b0f662897c43974aadb08da1ed85c7542585c Reviewed-on: https://gem5-review.googlesource.com/10433 Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-05-31mem-cache: Add a non-coherent cacheNikos Nikoleris
The class re-uses the existing MSHR and write queue. At the moment every single access is handled by the cache, even uncacheable accesses, and nothing is forwarded. This is a modified version of a changeset put together by Andreas Hansson <andreas.hansson@arm.com> Change-Id: I41f7f9c2b8c7fa5ec23712a4446e8adb1c9a336a Reviewed-on: https://gem5-review.googlesource.com/8291 Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com> Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br>
2018-05-31mem-cache: Move cache bypass mechanism to the portsNikos Nikoleris
Cache bypass is necessary for cpu models like the KvmCPU. Previously the bypass would happen at the cache classes. With this change the bypassing happens directly at the ports. Change-Id: I34de9fc63383aee8590643e169501ea6060d2d62 Reviewed-on: https://gem5-review.googlesource.com/10432 Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
2018-05-31mem-cache: Adopt a more sensible cache class hierarchyNikos Nikoleris
This patch changes what goes into the BaseCache and what goes into the Cache, to make it easier to add a NoncoherentCache with as much re-use as possible. A number of redundant members and definitions are also removed in the process. This is a modified version of a changeset put together by Andreas Hansson <andreas.hansson@arm.com> Change-Id: Ie9dd73c4ec07732e778e7416b712dad8b4bd5d4b Reviewed-on: https://gem5-review.googlesource.com/10431 Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-05-31mem-cache: Add helper function to perform evictionsNikos Nikoleris
Change-Id: I2df24eb1a8516220bec9b685c8c09bf55be18681 Reviewed-on: https://gem5-review.googlesource.com/10430 Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
2018-05-31mem-cache: Delegate block invalidation to block allocationNikos Nikoleris
For a block replacement we first select a victim block, we invalidate it and then populate it with the new information. Prior to this change BaseTags::insertBlock() did the invalidation and filled in the block with the new information. Now that the replacements stat is moved to the BaseCache, insertBlock does not need to perform the invalidation and as a result we can unify the block eviction code in BaseCache. Change-Id: I5bdf00b2dab2752ed2137ab7201ed1dc451333b3 Reviewed-on: https://gem5-review.googlesource.com/10429 Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br>
2018-05-31mem-cache: Refactor the recvAtomic functionNikos Nikoleris
The recvAtomic function in the cache handles atomic requests. Over time, recvAtomic has grown in complexity and code size. This change factors out some of its functionality in a separate functiona. The new functions handles atomic requests that miss. Change-Id: If77d2de1e3e802e1da37f889f68910e700c59209 Reviewed-on: https://gem5-review.googlesource.com/10425 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-05-31mem-cache: Refactor the cache recvTimingReq functionNikos Nikoleris
The recvTimingReq function in the cache handles timing requests. Over time, recvTimingReq has grown in complexity and code size. This change factors out some of its functionality in two separate functions. The new functions handle timing requests that hit and timing requests that miss separately. Change-Id: I09902d648d7272f0f9ec2851fa6376f7305ba418 Reviewed-on: https://gem5-review.googlesource.com/10424 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-05-31mem-cache: Refactor the cache recvTimingResp functionNikos Nikoleris
The recvTimingResp function in the cache handles timing responses. Over time, recvTimingResp has grown in complexity and code size. This change factors out some of its functionality to a separate function. The new function iterates through the in-service targets and handles them accordingly. Change-Id: I0ef28288640f6be1b30452b0664d32432e692ea6 Reviewed-on: https://gem5-review.googlesource.com/10423 Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-05-31mem-cache: Fix RandomReplDataDaniel R. Carvalho
Random replacement policy's data was being instantiated with the incorrect class. Change-Id: Ib573a6b5a63868d6069997c6279bec3b10c6b9b9 Reviewed-on: https://gem5-review.googlesource.com/10623 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-05-30mem-cache: Determine if an MSHR has requests from another cacheNikos Nikoleris
To decide whether we allocate upon receiving a response we need to determine if any of the currently serviced requests (non-deferred targets) is comming from another cache. This change adds support for tracking this information in the MSHR. Change-Id: If1db93c12b6af5813b91b9d6b6e5e196d327f038 Reviewed-on: https://gem5-review.googlesource.com/10422 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-05-18mem: Add support for more flexible DRAM timing and topologiesWendy Elsasser
This patch has 2 main aspects: 1) Add new parameter to adjust write-to-write delay 2) Enable support of more than 64 banks per controller Changes for new parameter: Incorporated a new parameter, tCCD_L_WR, which defaults to tCCD_L. This parameter can be used to set a unique delay between writes and between reads. To incorporate this parameter in the controller, modified the DRAMCtrl class to have separate variables for read and write column delays. Used these variables to account for tRTW, tWTR, tBURST, tCCD_L, and tCS as well as the new tCCD_L_WR parameter. Changes to support more than 64 banks: Modified the logic selecting the next command (reorderQueue and minBankPrep functions). Replaced the unint64_t variables with a vector of uint32_t elements. There is a uint32_t element defined per ranks to allow up to 32 banks per rank. This will automatically scale with ranks without issue. Change will allow analysis of memory sub-systems beyond the current landscape. Change-Id: I0ce466efed58276f843ad90e9ecc0ece6c37d646 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Reviewed-on: https://gem5-review.googlesource.com/10103 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-05-18mem: Optimize self-refresh entryWendy Elsasser
Self-refresh is entered during a refresh event, when the rank was previously in a precharge power-down state. The original code would enter self-refresh after a refresh was issued. The device subsequently will issue a refresh on self-refresh entry. On self-refresh exit, the controller will issue another refresh command. Devices require at least one additional refresh to be issued between self-refresh exit and re-entry. This ensures that enough refreshes occur in the case when the device narrowly missed a refresh on self-refresh exit. To minimize the number of refresh operations and still maintain the device requirement, the current logic does the following: 1) The controller will still enter self-refresh from a refresh event, when the previous state was precharge power-down. However, the refresh itself will be bypassed and the controller will immediately issue a self-refresh entry. 2) On a self-refresh exit, the controller will immediately issue a refresh command (per the original logic). This ensures the devices requirements are met and is a convenient way to kick off the command state machine. Change-Id: I1c4b0dcbfa3bdafd755f3ccd65e267fcd700c491 Reviewed-by: Curtis Dunham <curtis.dunham@arm.com> Reviewed-on: https://gem5-review.googlesource.com/10102 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-05-17mem-cache: Move reference count stats update to blk invalidationNikos Nikoleris
The tags in the cache keep track of the number of references to the blocks as well as the average number of references between an insertion and the next invalidation. Previously the stats where updated only on block insertion and invalidations were ignored. This changes moves the update of the counters to the block invalidation function. Change-Id: Ie7672c13813ec278a65232694024d2e5e17c4612 Reviewed-on: https://gem5-review.googlesource.com/10428 Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com> Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br>
2018-05-17mem-cache: Remove isTouched field from the CacheBlkNikos Nikoleris
At the moment isTouched is used in the warm-up detection mechanism but it keeps track of the same information as isValid(). This change removes it and substitutes its use by isValid(). Change-Id: I611ddf2fa4562ae3b3b2ed2fb74d26abd2e5ec62 Reviewed-on: https://gem5-review.googlesource.com/10427 Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br>
2018-05-17mem-cache: Move replacements stat to the base cache classNikos Nikoleris
Change-Id: I25dbcfcddfe1c422a76eb1af3f726c1360d8d110 Reviewed-on: https://gem5-review.googlesource.com/10426 Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com> Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br> Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
2018-05-17mem-cache: Simplify writeback for the tempBlock in recvTimingRespNikos Nikoleris
When we use the tempBlock to fill-in, we have to write it back and invalidate it at the end of current transaction. This patch simplifies the writeback flow by treating it as a regular writeback. Change-Id: I257be7bbff211e2832ad001a4e991daf67704485 Reviewed-on: https://gem5-review.googlesource.com/10421 Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-05-16style: fix amd license and style issuesTony Gutierrez
Change-Id: I26136fb49f743c4a597f8021cfd27f78897267b5 Reviewed-on: https://gem5-review.googlesource.com/10463 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Anthony Gutierrez <anthony.gutierrez@amd.com>
2018-05-08mem-cache: Create block insertion functionDaniel R. Carvalho
Create a block insertion function to be used when inserting blocks. This resets the number of references to 1 (the insertion is taken into account), sets the insertion tick, and set secure state. Change-Id: Ifc34cbbd1c125207ce47912d188809221c7a157e Reviewed-on: https://gem5-review.googlesource.com/9824 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-05-03mem-ruby: Consistent dprintf formats for issue outcomesBrad Beckmann
Change-Id: I053fc42f0d5f678f8e3434b53a0f09e00fc3e345 Reviewed-on: https://gem5-review.googlesource.com/10221 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.com>
2018-05-03mem-cache: Create Second-Chance replacement policyDaniel R. Carvalho
Implementation of a Second-Chance replacement policy. Similar to FIFO, but every block is given a second chance if it has been touched. Change-Id: Id4d52b698d0045a4914a4d848fdf9c3c00a28508 Reviewed-on: https://gem5-review.googlesource.com/9441 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-05-03mem-cache: ReplacementPolicy specific replacement dataDaniel R. Carvalho
Replacement data is specific for each replacement policy, and thus should be instantiated differently by each policy. Touch() and reset() do not need to be aware of CacheBlk, as they only update its ReplacementData. Invalidate() makes replacement policies independent of cache blocks, by removing the awareness of the valid state. An inheritable base ReplaceableEntry class was created to allow usage of replacement policies with any table-like structure. Change-Id: I998917d800fa48504ed95abffa2f1b7bfd68522b Reviewed-on: https://gem5-review.googlesource.com/9421 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-04-27sim,cpu,mem,arch: Introduced MasterInfo data structureGiacomo Travaglini
With this patch a gem5 System will store more info about its Masters. While it was previously keeping track of the Master name and Master ID only, it is now adding a per-Master pointer to the SimObject related to the Master. This will make it possible for a client to query a System for a Master using either the master's name or the master's pointer. Change-Id: I8b97d328a65cd06f329e2cdd3679451c17d2b8f6 Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/9781 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-04-26mem-cache: Use block iteration in BaseSetAssocDaniel R. Carvalho
Use block iteration instead of numSets and assoc in print(), cleanupRefs() and computeStats(). This makes these functions rely solely on what they are used for: printing and calculating stats of blocks. With the addition of Sectors an extra indirection level is added, and thus these functions would be skipping blocks. Change-Id: I0006f82736cce02ba3e501ffafe9236f748daf32 Reviewed-on: https://gem5-review.googlesource.com/10143 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-04-19mem-cache: Use findBlock in FALRU's block accessDaniel R. Carvalho
An access must perform a block search, which is done by findBlock. The tagHash is indexed by tags, so use extractTag instead of re- implementing its functionality. Change-Id: Ib5abacbc65cddf0f2d7e4440eb5355b56998a585 Reviewed-on: https://gem5-review.googlesource.com/10082 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.com>
2018-04-19mem-cache: Use secure flag in FALRU's findBlockDaniel R. Carvalho
FALRU's findBlock() must use the secure flag to assure proper functionality. Change-Id: I54e9fbd3c9093b3e8043c4c6c850b74a8f1f5ec0 Reviewed-on: https://gem5-review.googlesource.com/10081 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-04-18mem-cache: Create NRU Replacement PolicyDaniel R. Carvalho
Implementation of a Not Recently Used replacement policy. Change-Id: I24ab3a6f1db6dcb756b869cfebb5c4bc544170e8 Reviewed-on: https://gem5-review.googlesource.com/9001 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-04-18mem-cache: Revamp multiple size tracking for FALRU cachesNikos Nikoleris
This change fixes a few bugs and refactors the mechanism by which caches that use the FALRU tags can output statistics for multiple cache sizes ranging from the minimum cache of interest up to the actual configured cache size. Change-Id: Ibea029cf275a8c068c26eceeb06c761fc53aede2 Reviewed-on: https://gem5-review.googlesource.com/9826 Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-04-17mem-ruby: enable DPRINTFN calls in slicc for temporary debug printingJohn Alsop
Change-Id: Ib92f8bb4ab7b61ebc96b935cb8abc42cf5ec6ac8 Reviewed-on: https://gem5-review.googlesource.com/9921 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.com>
2018-04-17mem: Add a helper function to get a word of variable lengthAndreas Sandberg
There are many devices that need to handle reads/writes of different word sizes. A common pattern is a switch statement that check for the size of a packet and then calls the corresponding Packet::(get|set)<uintXX_t> methods. Simplify this by implementing Packet::(get|set)UintX helper functions. The getter reads a word of the size specified in the packet and the specified endianness. The word is then zero-extended to 64 bits. Conversely, the setter truncates the word down to the size required in the packet and then byte-swaps it to the desired endianness. Change-Id: I2f0c27fe3903abf3859bea13b07c7f5f0fb0809f Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Reviewed-on: https://gem5-review.googlesource.com/9761 Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-04-13ruby,gpu-compute: bugfix for GPU_VIPER* protocolsBrandon Potter
12db50c895 changed how directory mapping works, but it seems to have broken the VIPER variants of the GPU protocols. The fix involves declaring the function in the related '.sm' files. Change-Id: I116980d42a4aa648369058b529c9f8d9693eb894 Reviewed-on: https://gem5-review.googlesource.com/8521 Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Anthony Gutierrez <anthony.gutierrez@amd.com>
2018-04-13ruby: bugfix for MESI_Three_Level protocolBrandon Potter
Since a3177645, the MESI_Three_Level protocol does not build. This changeset addresses the problem by adding the L0Cache machine type to the static machine type declaration in Ruby's export file. Change-Id: I6327547fcb34595619caeb73932c0032f5f65c9f Reviewed-on: https://gem5-review.googlesource.com/8383 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.com>
2018-04-13mem-ruby: fix more style issues in AMD licensesTony Gutierrez
Change-Id: I6585c5664d966989991f61303548aed634cf298a Reviewed-on: https://gem5-review.googlesource.com/9841 Reviewed-by: Michael LeBeane <Michael.Lebeane@amd.com> Maintainer: Anthony Gutierrez <anthony.gutierrez@amd.com>
2018-04-13mem-cache: Add MoveToTail to FALRUDaniel R. Carvalho
FALRU was missing MoveToTail functionality within its invalidate function, and MoveToHead was doing unnecessary passes when the moved block was the head already. Besides, added some comments to make the code understandable. Change-Id: I2430d82b5d53c88b102a62610ea38b46d6e03a55 Reviewed-on: https://gem5-review.googlesource.com/9541 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-04-12configs, mem-ruby: fix issues with style in AMD licenseTony Gutierrez
fixes line length and white space issues. Change-Id: Ia04a91ec68cae2bcdabeb93bb1a0f74e8e5486c3 Reviewed-on: https://gem5-review.googlesource.com/9801 Reviewed-by: Bradford Beckmann <brad.beckmann@amd.com> Maintainer: Bradford Beckmann <brad.beckmann@amd.com>
2018-04-06mem: Remove unused 'using namespace'Daniel R. Carvalho
Removal of unused/barely used 'using namespace' from C++ files. Change-Id: I66dc548c04506db2e41180b9ea7ab5abd7d5375a Reviewed-on: https://gem5-review.googlesource.com/9601 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-04-06mem-cache: Move insertBlock functionality in FALRUDaniel R. Carvalho
Block insertion is being done in the getCandidates function, while the insertBlock function does not do anything. Besides, BaseTags' stats weren't being updated. Change-Id: Iadab9c1ea61519214f66fa24c4b91c4fc95604c0 Reviewed-on: https://gem5-review.googlesource.com/8882 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-04-06mem-cache: Create LIP Replacement PolicyDaniel R. Carvalho
Implementation of a LRU Insertion Policy replacement policy. Change-Id: I1a9aa0091ff2cdc1b1652c1d5ec7a3b33fba5b44 Reviewed-on: https://gem5-review.googlesource.com/9002 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-04-06mem-cache: Create BIP Replacement PolicyDaniel R. Carvalho
Implementation of a Bimodal Insertion Policy replacement policy. Change-Id: Ife058d0d4310dbcb35858348006189f0b2bf7c37 Reviewed-on: https://gem5-review.googlesource.com/9003 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-04-05mem-cache: Use Packet functions to write data blocksDaniel R. Carvalho
Instead of using raw memcpy, use the proper writer functions from the Packet class in Cache. Fixed typos in comments of these functions. Change-Id: I156a00989c6cbaa73763349006a37a18243d6ed4 Reviewed-on: https://gem5-review.googlesource.com/9661 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-03-30mem-cache: Remove unused return value from the recvTimingReq funcNikos Nikoleris
The recvTimingReq function in the cache always returns true. This changeset removes the return value. Change-Id: I00dddca65ee7224ecfa579ea5195c841dac02972 Reviewed-on: https://gem5-review.googlesource.com/8289 Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com> Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br>
2018-03-30mem-cache: Fix FALRU data block seg faultDaniel R. Carvalho
FALRU didn't initialize the blocks' data, causing seg faults. This patch does not make FALRU functional yet. Change-Id: I10cbcf5afc3f8bc357eeb8b7cb46789dec47ba8b Reviewed-on: https://gem5-review.googlesource.com/9302 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-03-30mem-cache: Create LFU replacement policyDaniel R. Carvalho
Implementation of a Least Frequently Used replacement policy. Change-Id: I772afccd3a7955777e53d59341e922718db44e5c Reviewed-on: https://gem5-review.googlesource.com/8890 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-03-30mem-cache: Create RRIP Replacement PolicyDaniel R. Carvalho
Implementation of a Re-Reference Interval Prediction replacement policy. Change-Id: Iba716eb5df2bf2be156e765f889d94f6ad00c91b Reviewed-on: https://gem5-review.googlesource.com/8981 Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com> Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
2018-03-30mem-cache: Create BRRIP replacement policyDaniel R. Carvalho
Implementation of a Bimodal Re-Reference Interval Prediction replacement policy. Change-Id: I25d4a59a60ef7ac496c66852e394fd6cbaf50912 Reviewed-on: https://gem5-review.googlesource.com/8891 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-03-23mem-cache: fix missing overrides in repl policiesJason Lowe-Power
Change-Id: I67759a4532e8a46c1643d4c3a9c546ad6b565b81 Signed-off-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-on: https://gem5-review.googlesource.com/9321 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>