Xavi/cvw
1
0
Fork 0
forked from Github_Repos/cvw
Code Issues Pull Requests Packages Projects Releases Wiki Activity
2,306 Commits 14 Branches 1 Tag 31 MiB
86514a6a23
Commit Graph

1973 Commits

Author SHA1 Message Date
Ross Thompson
e3ddcbb11e Partial commit. 
Moved AMO, SWW, and SWR outside the dcache.
Step 1 of separate the fetching logic from the caches.
 2021-12-27 15:56:18 -06:00
David Harris
66ad7ddf1c Added D and F tests to regression 2021-12-27 04:35:34 +00:00
David Harris
6e20d011d5 Fixed imperas C tests 2021-12-26 04:45:06 +00:00
David Harris
e6ed1372a7 Incorporated new Imperas tests. f and d tests are failing and c tests are hanging. 2021-12-26 04:36:53 +00:00
David Harris
48bb534658 Started FIR test code and started incorporating Imperas tests 2021-12-25 22:39:51 +00:00
David Harris
d9e61fad67 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-12-25 06:37:30 -08:00
David Harris
9b491788b2 Checked in Chapter 2 C and assembly examples 2021-12-25 06:35:36 -08:00
Ross Thompson
7fe70c3cc6 Removed the fault state from the hptw. Now writing TLB faults into the I/DTLBs. This has two advantages. 
1: It simplifies the interactions between the caches and the hptw.
2: instruction page faults are fetched 3 times, caching them in the ITLB speeds up this process.

There are two downsides.
1: Pollute the TLBs with not very relavent translations
2: Have to compute the misalignment.  This can be cached in the TLB which only costs 1 flip flop
   for each TLB line.
 2021-12-23 12:40:22 -06:00
Ross Thompson
f863bdc495 linux-wave.do changes. 2021-12-21 22:37:55 -06:00
Ross Thompson
6a8e917e06 It was possible for a load/store followed by tlb miss and update to have an exception and still commit its result to memory or register. 2021-12-21 15:59:56 -06:00
Ross Thompson
7844d3f064 Fixed bug where the wrong address is read into the icache memory. 2021-12-21 15:16:00 -06:00
Ross Thompson
8b97aaac3e Fixed complex bug where FENCE is instruction class miss predicted as a taken branch. 2021-12-21 11:29:28 -06:00
Ross Thompson
3f62a64056 Identified bug in the IFU which selects PCNextF when InvalidateICacheM is true. If the ID is invalid PCNextF should NOT be PCE. 2021-12-20 23:45:55 -06:00
Ross Thompson
a157235a4b Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-12-20 23:27:46 -06:00
Ross Thompson
ffe792bcfc Fixed bug on icache spill. if the cpu stalled on the completion it was possible to use the wrong address for the sram read. Also miss spill hit always selected the wrong address. 2021-12-20 23:27:37 -06:00
David Harris
bf9082b0ad Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-12-20 21:09:20 -08:00
David Harris
475fa01767 Fixing paths in wally-setup.sh 2021-12-20 21:08:34 -08:00
Ross Thompson
50b307bc0e Looks like rdtime was accidentally replaced with rrame from a find and replace. 2021-12-20 21:26:38 -06:00
Ross Thompson
8416cae3fe Fixed Type 5b interaction between dcache and hptw. 
This is a load concurrent with ITLBMiss.
 2021-12-20 18:33:31 -06:00
Ross Thompson
b6d75d453a Modified LSU verilog is compatible with vivado. have to use extra logic IEUAdrExtM. 2021-12-20 10:03:56 -06:00
Ross Thompson
beb1988539 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-12-20 10:03:19 -06:00
Ross Thompson
df8bd78679 More signal name cleanup in LSU. 2021-12-19 22:47:48 -06:00
Ross Thompson
3eb5f33705 Remove verbosity from lsu state machine. 2021-12-19 22:41:34 -06:00
Ross Thompson
d3c3422d12 Rename of SelPTW to SelHPTW. 2021-12-19 22:24:07 -06:00
Ross Thompson
8feb36b926 Signal renames. 2021-12-19 22:21:03 -06:00
Ross Thompson
dc82d44f9e Hardware reductions in the lsu. 2021-12-19 22:00:28 -06:00
Ross Thompson
dc95896303 Removed HPTWStall. Not needed as InterlockStall from the LSU provides the equivalent. 2021-12-19 21:36:54 -06:00
Ross Thompson
138da1fefa Removed lsuArb and placed remaining logic in lsu.sv. 
Removed after itlb walk signal as the dcache no longer has any need for this.
Formated lsu.sv
 2021-12-19 21:34:40 -06:00
Ross Thompson
596cc4fde4 Moved convert2bin.py to the tests directory. This file converts the qemu ram.txt output into a binary for copy to flash card. 
mv qemu patches to tests directory.
 2021-12-19 20:11:32 -06:00
David Harris
a25d541dcf Moved generate of conditional units to hart 2021-12-19 17:03:57 -08:00
David Harris
3c3bfd055e Moved generate statements for optional units into wallypipelinedhart 2021-12-19 16:53:41 -08:00
Ross Thompson
d9cc9afd49 Changes to buildroot to support MemAdrM to IEUAdrM name changes. 2021-12-19 18:24:40 -06:00
Ross Thompson
32a4afc7a1 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-12-19 18:16:49 -06:00
Ross Thompson
a39b47d226 Switched to using an always block for lsu stall logic. This avoids the problematic x propagation. 2021-12-19 18:16:08 -06:00
Ross Thompson
eceb418056 Implemented what I think is the last required change for the lsu state machine. 2021-12-19 17:57:12 -06:00
Ross Thompson
fe5c05eb8d Created hack to get around imperas64mmu unknown (value = x) bug. 2021-12-19 17:53:13 -06:00
Ross Thompson
c453b285dc Fixed bug where icache did not replay PCF on itlb miss. 2021-12-19 17:01:13 -06:00
Ross Thompson
c9291655da Fixed bug most of the bugs related to the dcache changes, but the mmu tests don't pass. 2021-12-19 16:12:31 -06:00
David Harris
53cd2ac049 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-12-19 13:53:53 -08:00
David Harris
9e6c9c38c0 ALUControl cleanup 2021-12-19 13:53:45 -08:00
Katherine Parry
e3f2a252cd fixed some small errors in FMA 2021-12-19 13:51:46 -08:00
Ross Thompson
f4d778c2f6 Corrected the LSU's fsm for stalling CPU. Removed state from hptw fsm. 2021-12-19 15:10:33 -06:00
Ross Thompson
a445bedcd2 Modified the icache memory to read using the virtual (non physical) address in the PCNextF stage. 
This allows recovering from an ITLBMiss to be 1 cycle after and simplifies the hptw slightly.
 2021-12-19 14:57:42 -06:00
Ross Thompson
225cd5a114 Renamed MemAdrM to IEUAdrM. This will free the name MemAdrm for use in the DCache. 2021-12-19 14:00:30 -06:00
Ross Thompson
cd3c1032b7 Adds FSM to LSU which will handle the interactions between the hptw and dcache. This will dramatically simplify the dcache by removing all walker states. 2021-12-19 13:55:57 -06:00
Ross Thompson
1126135b80 minro change. comments about needed changes in dcache. 2021-12-19 13:53:02 -06:00
David Harris
f201af4bb7 Renamed zero to eq in flag generation 2021-12-19 11:49:15 -08:00
David Harris
406f129bed Controller fix 2021-12-18 22:08:23 -08:00
David Harris
67577d7c91 Renamed RD1D to R1D, etc. 2021-12-18 21:26:00 -08:00
David Harris
721d0b5bcf Simplified shifter right input 2021-12-18 10:25:40 -08:00
Ross Thompson
4daeb6657f Merge branch 'tlb_fixes' into main 2021-12-18 12:24:17 -06:00
David Harris
7e026f3e78 Simplified Shifter Right input 2021-12-18 10:21:17 -08:00
David Harris
27ec8ff893 Shared ALU mux input for shifts 2021-12-18 10:08:52 -08:00
David Harris
eed2765033 Factored out common parts of shifter 2021-12-18 10:01:12 -08:00
David Harris
53baf3e787 Cleaning shifter 2021-12-18 09:43:09 -08:00
David Harris
ebcffcdebd Moved W64 truncation after result mux 2021-12-18 09:27:25 -08:00
David Harris
23c6b6370f Forwarding logic factoring 2021-12-18 05:40:38 -08:00
David Harris
10dfefa8ad Simplified FWriteInt interfaces by merging into RegWrite 2021-12-18 05:36:32 -08:00
David Harris
0f319b45c1 Do File cleanups 2021-12-17 17:45:26 -08:00
Ross Thompson
bbd1332353 Merge remote-tracking branch 'origin/tlb_fixes' into main 2021-12-17 14:40:29 -06:00
Ross Thompson
a11597b6bd Added more debugging code for FPGA. 2021-12-17 14:40:25 -06:00
Ross Thompson
ee81cfff0c Possible fix for icache deadlock interaction with hptw. 2021-12-17 14:38:25 -06:00
David Harris
aebd746e71 Renamed MemAdrE to IEUAdrE and moved the MemAdrM flop from IEU to LSU to reduce wires crossing hierarchies 2021-12-15 12:10:45 -08:00
David Harris
4e35736e90 IEU cleanup: 2021-12-15 11:38:26 -08:00
Ross Thompson
6d2a4b8354 Oups missed files in the last commit. 2021-12-15 10:25:08 -06:00
David Harris
865d5ce0b1 Renamed dtim->ram and boottim ->bootrom 2021-12-14 13:43:06 -08:00
David Harris
d7e78f8707 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-12-14 13:05:47 -08:00
David Harris
ecce1e62ee changed ideal memory to MEM_DTIM and MEM_ITIM 2021-12-14 13:05:32 -08:00
Ross Thompson
9886ed3028 Comments for dcache and icache refactoring. 2021-12-14 14:46:29 -06:00
David Harris
8dcf2c65f2 renamed rv32/64g to rv32/64gc in configuration 2021-12-14 11:22:00 -08:00
David Harris
0e9fe6c214 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-12-14 11:15:58 -08:00
David Harris
2d24230093 ALU and datapath cleanup 2021-12-14 11:15:47 -08:00
Ross Thompson
997a733a97 Added patch file for the qemu modifications. 
Added instructions for building and installing qemu.
 2021-12-13 18:36:00 -06:00
Ross Thompson
af9f97454d Cleaned up fpga synthesis script. 2021-12-13 18:26:54 -06:00
Ross Thompson
2d662bc4be Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-12-13 17:16:20 -06:00
Ross Thompson
81da8b8d2a Formating changes to cache fsms. 2021-12-13 17:16:13 -06:00
Ross Thompson
4d6d72a082 Fixed some typos in the dcache ptw interaction documentation. 2021-12-13 15:47:20 -06:00
David Harris
55f3979b67 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-12-13 07:57:49 -08:00
David Harris
2039752740 Simplified ALU and source multiplexers pass tests 2021-12-13 07:57:38 -08:00
kwan
8f79a12cbb priviledge .* removed, passed regression 2021-12-13 00:34:43 -08:00
kwan
f0e425e4ea test 2021-12-13 00:31:51 -08:00
kwan
a365e86197 priviledge .* fixed, passed local regression 2021-12-13 00:22:01 -08:00
Kevin
03274de97c Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-12-12 17:53:41 -08:00
Kevin
98420cb988 dot stars conversions on the rest of the testbenches 2021-12-12 17:53:26 -08:00
Ross Thompson
051dd7d09d Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-12-12 17:33:29 -06:00
Ross Thompson
395766219b Revert "Privilige .*s removed" 
This reverts commit 82bab8e90e.
 2021-12-12 17:31:57 -06:00
Ross Thompson
f758a53247 Revert "Priviledged .* removed" 
This reverts commit a95efea0b3.
 2021-12-12 17:31:39 -06:00
Ross Thompson
39168a201b Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-12-12 17:21:51 -06:00
Ross Thompson
68745d40f2 Modified FPGA to add additional signals to ILA. Created advanced trigger for ILA using vivado's tsm language. 2021-12-12 17:21:44 -06:00
Ross Thompson
545c586186 Added proper credit to Richard Davis, the author of the original sd card reader. 2021-12-12 15:05:50 -06:00
kwan
a95efea0b3 Priviledged .* removed 2021-12-12 09:55:45 -08:00
kwan
82bab8e90e Privilige .*s removed 2021-12-12 09:54:14 -08:00
David Harris
a7e9dee77d Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-12-12 05:49:31 -08:00
Kevin
1a82b50483 edited one testbench, yet to run regression 2021-12-10 20:26:20 -08:00
Ross Thompson
4cea8d1a29 Performance counters now output of coremark. 2021-12-09 14:48:17 -06:00
Ross Thompson
37079626cd Fixed numerous errors in the preformance counter updates. 
Fixed dcache reporting of access and misses.
Added performance counter tracking to coremark.
 2021-12-09 11:44:12 -06:00
bbracker
f7b2d3b6df fix recursive signal logging for graphical sims 2021-12-08 16:07:26 -08:00
bbracker
d6ae6824ab Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-12-08 14:12:18 -08:00
bbracker
f8cffca2b2 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-12-08 14:12:09 -08:00
bbracker
5feccaec68 fix release of ReadDataM 2021-12-08 14:11:43 -08:00