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Author SHA1 Message Date
David Harris
b2a102ce79 Started to clean up fctrl 2023-03-30 12:57:14 -07:00
David Harris
2924179424 Merge pull request #176 from kipmacsaigoren/priv-tests 
Fixed regression after cause CSR fix
 2023-03-30 07:02:47 -07:00
Kip Macsai-Goren
3805cf993a unnecessary comments cleanup 2023-03-29 19:32:57 -07:00
Kip Macsai-Goren
cfb236dd13 Merge branch 'priv-tests' of github.com:kipmacsaigoren/cvw into priv-tests 2023-03-29 16:31:35 -07:00
Kip Macsai-Goren
a7c9d3d37b ported medelg fixes to 32 bit tests. Requires a make allclean 2023-03-29 16:31:28 -07:00
kipmacsaigoren
5cc1bc97da Merge branch 'openhwgroup:main' into priv-tests 2023-03-29 15:34:47 -07:00
David Harris
6934a32747 Merge pull request #175 from SydRiley/main 
Starting IFU coverage expansion
 2023-03-29 15:29:16 -07:00
Sydney Riley
4bd3121364 Manual merge in the coverage64gc 2023-03-29 15:25:27 -07:00
Kip Macsai-Goren
2e151b6b08 updated tests to reflect non-writeable bits of deleg 2023-03-29 15:24:00 -07:00
Sydney Riley
20fec0177d Corrected authorship for IFU.S tests file 2023-03-29 15:20:46 -07:00
Sydney Riley
b0237eaa8b Starting IFU tests including c.fld compressed instruction 2023-03-29 15:15:47 -07:00
Kip Macsai-Goren
491ef14b71 Resolved ImperasDV receiving incorrect cause values 2023-03-29 15:04:56 -07:00
Ross Thompson
5c4b753a1e Merge pull request #173 from davidharrishmc/dev 
Test improvements including FPU coverage
 2023-03-29 13:00:25 -05:00
David Harris
9d8f9e4428 Reduced number of bits in mcause and medeleg registers 2023-03-29 07:02:09 -07:00
David Harris
59f825a54b Merge branch 'main' of https://github.com/openhwgroup/cvw into dev 2023-03-29 06:19:10 -07:00
David Harris
d604a4fd33 Merge pull request #171 from AlecVercruysse/fix_152 
add check for legal funct3 for IW instructions
 2023-03-29 06:18:31 -07:00
David Harris
d059da6eca Turned on FS bit in fpu.S coverage test 2023-03-29 06:10:05 -07:00
David Harris
115c042015 Turned off hpm counters 2023-03-28 21:28:56 -07:00
David Harris
f2c24b869d Simplified fctrl 2023-03-28 21:13:48 -07:00
David Harris
3dc1c6673d Started adding fpu fctrl tests 2023-03-28 21:13:25 -07:00
Alec Vercruysse
46df428e56 add check for legal funct3 for IW instructions 2023-03-28 15:59:48 -07:00
David Harris
92a7e86942 Merge branch 'main' of https://github.com/openhwgroup/cvw into dev 2023-03-28 14:33:18 -07:00
David Harris
16742cbcb6 Merge pull request #170 from ross144/main 
Fixed issue 148 and problems with i/d cache address loggers.
 2023-03-28 14:32:54 -07:00
Ross Thompson
d0f8db7939 Merge branch 'main' of https://github.com/openhwgroup/cvw 2023-03-28 16:31:50 -05:00
Ross Thompson
84860a062d Modified the testbench to not use the loggers for unsupported configurations. 2023-03-28 16:27:54 -05:00
David Harris
6849eeae0c Merge branch 'main' of https://github.com/openhwgroup/cvw into dev 2023-03-28 14:27:08 -07:00
Ross Thompson
d33f4cfdef Merge branch 'main' of github.com:ross144/cvw 2023-03-28 16:22:26 -05:00
Ross Thompson
c65c9e52d4 Disable loggers by default. 2023-03-28 16:20:45 -05:00
Ross Thompson
650a1a8d7e Now reports if there is a hit or miss. 2023-03-28 16:20:14 -05:00
Ross Thompson
ef26600689 Restored performance counter reports. 2023-03-28 16:15:05 -05:00
Ross Thompson
a5601ea264 Now have logging of i/d cache addresses, but the performance counter reports are x's. 2023-03-28 16:09:54 -05:00
Ross Thompson
65d83b6f63 Merge branch 'main' of github.com:ross144/cvw 2023-03-28 14:47:16 -05:00
Ross Thompson
366a96a0fc Possible fix for issue 148. 
I found the problem. We use a Committed(F/M) signal to indicate the IFU or LSU has an ongoing cache or bus transaction and should not be interrupted. At the time of the mret, the IFU is fetching uncacheable invalid instructions asserting CommittedF. As the IFU finishes the request it unstalls the pipeline but continues to assert CommittedF. (This is not necessary for the IFU). In the same cycle the LSU d cache misses. Because CommittedF is blocking the interrupt the d cache submits a cache line fetch to the EBU.

I am thinking out loud here. At it's core the Committed(F/M) ensure memory operations are atomic and caches don't get into inconsistent states. Once the memory operation is completed the LSU/IFU removes the stall but continues to hold Committed(F/M) because the memory operation has completed and it would be wrong to allow an interrupt to occur with a completed load/store. However this is not true of the IFU. If we lower CommittedF once the operation is complete then this problem is solved. The interrupt won't be masked and the LSU will flush the d cache miss.

This requires a minor change in the cachebusfsm and cachefsm. I will report back after I've confirmed this works.
 2023-03-28 14:47:08 -05:00
David Harris
64bf9510ad Added support (untested) for half and quad conversions 2023-03-28 10:53:06 -07:00
David Harris
36a0d35ae5 fixed fp->fp conversions 2023-03-28 10:35:41 -07:00
David Harris
4e50cc3379 support more fp -> fp conversions 2023-03-28 10:28:01 -07:00
David Harris
074fd1d9c3 Fixed fmv decoder 2023-03-28 10:21:33 -07:00
Ross Thompson
e49cf8a028 Merge pull request #169 from davidharrishmc/dev 
PMP Fix to issue 132
 2023-03-28 11:49:00 -05:00
David Harris
2c8fcc24e0 Fixed bitrot in testfloat tests 2023-03-28 09:35:19 -07:00
David Harris
2427e43ffd Moved rv32 peripheral tests using TEST-LIB to wally32priv because rv32imc doesn't support PMP 2023-03-28 09:08:48 -07:00
David Harris
2e5c50e24a Fixed RV32 tests after PMP fix 2023-03-28 08:35:23 -07:00
David Harris
e8904411ce Fixed PMP issue 132. Updated tests to initialize PMP before using. Needs to remake tests 2023-03-28 06:58:17 -07:00
David Harris
4594dffc7f Set PMP to allow all user/supervisor accesses in WALLY-init-lib 2023-03-28 06:46:11 -07:00
David Harris
f24a9be4dc Merge pull request #168 from AlecVercruysse/makecoverage 
Add tests/coverage/ tests as a target to sim/Makefile
 2023-03-28 05:23:04 -07:00
David Harris
cce4d06f53 Merge pull request #167 from ross144/main 
Added clarificaiton to buildroot linux testvector generation
 2023-03-28 05:21:44 -07:00
David Harris
2e238c15aa CSRS privileged coverage test 2023-03-28 04:37:56 -07:00
Ross Thompson
514738ad96 Now reports i cache and d cache memory accesses. 2023-03-27 23:44:50 -05:00
Ross Thompson
03666dab1c Merge pull request #166 from magpyed/patch-1 
Fixing order of local repo commands in README
 2023-03-27 22:41:20 -05:00
Ross Thompson
3150d9244d Merge branch 'main' of github.com:ross144/cvw 2023-03-27 18:37:07 -05:00
Ross Thompson
059c73a4d2 First stab at the i cache logger. 2023-03-27 18:36:51 -05:00