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VexRiscv
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595 Commits 39 Branches 2 Tags 15 MiB
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595 Commits

Author SHA1 Message Date
Charles Papon ac16558b6b Add haltItByOther 
Axi4, remove some pipelining
 2017-05-30 17:49:29 +02:00
Charles Papon 6b62d8da52 VexRiscv in Briey SoC is working on FPGA (including jtag debugging) 2017-05-29 21:17:14 +02:00
Charles Papon 213e154b40 Fix regression test debugPlugin bus 2017-05-28 17:41:09 +02:00
Charles Papon 8dddc7e334 GDB + openOCD successfully connect ! 2017-05-25 13:36:54 +02:00
Charles Papon 75f6b78daf OpenOCD successfuly connected to target 2017-05-24 23:53:31 +02:00
Charles Papon 1efed60307 Fix DebugPlugin 
Add DebugPlugin regression (PASS)
 2017-05-22 19:23:11 +02:00
Charles Papon cc875d1c0b Add TCP server socket to manage debug access from openOCD (as instance) 2017-05-22 00:42:19 +02:00
Charles Papon 5cda2632df Start implementing debugPlugin test infrastructures 2017-05-21 23:50:40 +02:00
Charles Papon 9995c5109d move tests 2017-05-21 16:53:48 +02:00
Charles Papon 6c1d953647 DebugPlugin fully implemented 2017-05-20 18:15:15 +02:00
Charles Papon 619739d33a preliminary DebugPlugin 2017-05-20 15:16:45 +02:00
Dolu1990 cabf602efc Update README.md 2017-05-19 17:13:33 +02:00
Charles Papon a5364ad001 Add flush support instruction into the instruction cache 2017-05-19 11:20:33 +02:00
Charles Papon 736478ff1d CsrPlugin now catch illegal CSR access (wrong address + to low privilege level) 2017-05-09 00:40:44 +02:00
Charles Papon fe184636dd Improve CsrPlugin FMax 2017-05-08 22:59:05 +02:00
Charles Papon c69fdf7987 Add basics of the USER mode to CsrPlugin 2017-05-07 23:41:54 +02:00
Charles Papon 579e93bb5a Rename MachineCsr plugin into CsrPlugin 2017-05-07 22:26:17 +02:00
Charles Papon 392f3a7d8c Add PrivilegeService (User) (not implemented) 
Split caches from their plugins file
 2017-05-07 20:16:41 +02:00
Charles Papon a51c27970b Add opcode for clean/invalidate the datacache 
Change mmu opcodes
 2017-05-07 16:02:55 +02:00
Charles Papon 4d6a6fbb02 Fix Instruction Data cache exceptions 
Pass all tests including CSR/FreeRTOS
 2017-05-07 12:51:47 +02:00
Charles Papon ca1bc9cf69 DataCache plugin now support all exceptions 2017-05-07 10:44:41 +02:00
Charles Papon 5ba8ab7947 DataCache add invalidate/clean/invalidateClean on a virtual address/way 2017-05-05 00:43:41 +02:00
Charles Papon 48a5dc8e79 DCache move the exception bus outside the cache component 2017-05-04 21:01:08 +02:00
Charles Papon 534a4c3494 mmu working for instruction and data bus (both tested) 2017-05-03 18:42:54 +02:00
Charles Papon c647ef8bb6 Rework constructors 2017-05-01 20:20:21 +02:00
Charles Papon 889a040f90 Fix multi port MMU design 
Change machineCSR to handle exceptions from the writeBack stage
Change the DBusCachedPlugin to emit miss exception
 2017-05-01 14:29:37 +02:00
Charles Papon 2ed33106d6 MMU pass simple regression ! 2017-04-29 19:58:17 +02:00
Charles Papon 227772f19c Add miss files 2017-04-28 16:41:44 +02:00
Charles Papon 010ba568f0 MMU implemented 
Datacached using MMU implemented
It compile, but nothing is tested
 2017-04-28 16:41:23 +02:00
Charles Papon ba2ca77114 Two stage datacache now pass dhrystone benchmark without error 2017-04-23 23:15:38 +02:00
Charles Papon 9040326273 WIP two stage DCache, nearly passed the dhrystone benchmark 2017-04-23 18:31:16 +02:00
Charles Papon e00bf028cb Add HazardPessimisticPlugin for light and very good FMAX hazard tracking 2017-04-17 17:56:47 +02:00
Charles Papon 024e14ae58 Smaller and faster single stage instruction cache 
Add fast two stage instruction cache
Remove useless address == 0 checks in the HazardPlugin
 2017-04-13 18:27:03 +02:00
Charles Papon c83a157c64 IBusCachedPlugin with twoStage config is now compatible with syncronous regfile 2017-04-09 11:59:09 +02:00
Charles Papon 9a4c35d7b6 IBusCachedPlugin twoStage config fix 2017-04-08 18:34:44 +02:00
Charles Papon e3b9e671ec IBusCachedPlugin add two stage cache option for better FMax and better scaling 2017-04-08 17:42:13 +02:00
Charles Papon 5c594d6d2a IBusCachedPlugin move memory access outside the pipeline 2017-04-07 13:27:47 +02:00
Charles Papon 8f09867bda Cleaning 2017-04-07 13:09:31 +02:00
Charles Papon efb27390a7 Better IntAluPlugin 
Better SrcPlugin
Better DBusCachedPlugin
 2017-04-06 01:28:52 +02:00
Charles Papon 2e02a6f0e7 DBusCachedPlugin better write to read hazard logic (FMAX) 
Add some TODO FMAX comments
 2017-04-05 18:37:02 +02:00
Charles Papon 179e7f7b4c IBusCachedPlugin add asyncTagMemory option 2017-04-05 14:25:11 +02:00
Charles Papon 2b24cbc8e1 Add pessimistic harzard options 
Add separated add/sum option in srcPlugin
 2017-04-04 00:25:39 +02:00
Charles Papon acb85a1fb8 Add some decoder comments 2017-04-03 01:33:54 +02:00
Charles Papon 8ff05bd2a8 Much better decoder using Quine-Mc Cluskey 2017-04-02 21:05:25 +02:00
Charles Papon a9f7177181 Data cache pass dhrystone benchmark. 
Data cache todo -> bus error handling
 2017-04-01 17:06:59 +02:00
Charles Papon 2f384364d8 Data cache WIP 
refractoring
 2017-03-31 15:20:51 +02:00
Charles Papon 26597f78cd cleaning 2017-03-31 11:06:40 +02:00
Charles Papon 19fe998a52 Instruction cache is now able to catch bus errors 2017-03-30 17:34:24 +02:00
Charles Papon 95585b4d9a Add instruction cache plugin (tested) 2017-03-30 10:03:53 +02:00
Charles Papon 32d32845bd Add tests for iRsp, dRsp access faults 2017-03-28 20:25:58 +02:00