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Author SHA1 Message Date
David Harris
b95730e3a1 Coverage improvements in ieu, hazard units 2023-03-31 08:33:46 -07:00
David Harris
820e3513c7 Privilege test improvements 2023-03-31 08:32:02 -07:00
David Harris
77d5f1c81b Refactored InstrValidNotFlushed into CSR Write signals 2023-03-30 17:06:09 -07:00
David Harris
25cd1cc432 Started factoring out InstrValidNotFlushed from CSRs 2023-03-30 14:56:19 -07:00
David Harris
a4ae1b9cbb fctrl updated and buildroot working again 2023-03-30 13:17:15 -07:00
David Harris
fc01f45c80 fctrl continued cleanup 2023-03-30 13:07:39 -07:00
David Harris
e68e473da9 fctrl continued cleanup 2023-03-30 13:05:56 -07:00
David Harris
b07c71ea41 Started to clean up fctrl 2023-03-30 12:57:14 -07:00
David Harris
3cb71125d1
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
94f03b0d78 unnecessary comments cleanup 2023-03-29 19:32:57 -07:00
Kip Macsai-Goren
dded6a640e Merge branch 'priv-tests' of github.com:kipmacsaigoren/cvw into priv-tests 2023-03-29 16:31:35 -07:00
Kip Macsai-Goren
7881c245a2 ported medelg fixes to 32 bit tests. Requires a make allclean 2023-03-29 16:31:28 -07:00
kipmacsaigoren
aec27965af
Merge branch 'openhwgroup:main' into priv-tests 2023-03-29 15:34:47 -07:00
David Harris
f5c66b4464
Merge pull request #175 from SydRiley/main 
Starting IFU coverage expansion
 2023-03-29 15:29:16 -07:00
Sydney Riley
6c1f9de8c2 Manual merge in the coverage64gc 2023-03-29 15:25:27 -07:00
Kip Macsai-Goren
414cd26a9d updated tests to reflect non-writeable bits of deleg 2023-03-29 15:24:00 -07:00
Sydney Riley
287df517b9 Corrected authorship for IFU.S tests file 2023-03-29 15:20:46 -07:00
Sydney Riley
ede13491ef Starting IFU tests including c.fld compressed instruction 2023-03-29 15:15:47 -07:00
Kip Macsai-Goren
da905b4eb9 Resolved ImperasDV receiving incorrect cause values 2023-03-29 15:04:56 -07:00
Ross Thompson
289b1ac3f6
Merge pull request #173 from davidharrishmc/dev 
Test improvements including FPU coverage
 2023-03-29 13:00:25 -05:00
David Harris
de2a0da9e9 Reduced number of bits in mcause and medeleg registers 2023-03-29 07:02:09 -07:00
David Harris
96e3c3bea8 Merge branch 'main' of https://github.com/openhwgroup/cvw into dev 2023-03-29 06:19:10 -07:00
David Harris
e858d8a2ff
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
0e02378532 Turned on FS bit in fpu.S coverage test 2023-03-29 06:10:05 -07:00
David Harris
4c41589329 Turned off hpm counters 2023-03-28 21:28:56 -07:00
David Harris
043e4fe5f4 Simplified fctrl 2023-03-28 21:13:48 -07:00
David Harris
7132271a83 Started adding fpu fctrl tests 2023-03-28 21:13:25 -07:00
Alec Vercruysse
bfb4f0d6eb add check for legal funct3 for IW instructions 2023-03-28 15:59:48 -07:00
David Harris
77affa7ccd Merge branch 'main' of https://github.com/openhwgroup/cvw into dev 2023-03-28 14:33:18 -07:00
David Harris
cac9d31696
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
73e6972f0b Merge branch 'main' of https://github.com/openhwgroup/cvw 2023-03-28 16:31:50 -05:00
Ross Thompson
b4338a5a50 Modified the testbench to not use the loggers for unsupported configurations. 2023-03-28 16:27:54 -05:00
David Harris
5e352bf72e Merge branch 'main' of https://github.com/openhwgroup/cvw into dev 2023-03-28 14:27:08 -07:00
Ross Thompson
6b58cb8d65 Merge branch 'main' of github.com:ross144/cvw 2023-03-28 16:22:26 -05:00
Ross Thompson
34dd2850e0 Disable loggers by default. 2023-03-28 16:20:45 -05:00
Ross Thompson
cef75cfe06 Now reports if there is a hit or miss. 2023-03-28 16:20:14 -05:00
Ross Thompson
a48049f6fe Restored performance counter reports. 2023-03-28 16:15:05 -05:00
Ross Thompson
7cc8d4f20c 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
f2edf0ff86 Merge branch 'main' of github.com:ross144/cvw 2023-03-28 14:47:16 -05:00
Ross Thompson
69f6b291c6 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
f0cab709f2 Added support (untested) for half and quad conversions 2023-03-28 10:53:06 -07:00
David Harris
40311c4f62 fixed fp->fp conversions 2023-03-28 10:35:41 -07:00
David Harris
e5955c5dd8 support more fp -> fp conversions 2023-03-28 10:28:01 -07:00
David Harris
fd2d08f501 Fixed fmv decoder 2023-03-28 10:21:33 -07:00
Ross Thompson
d55b0c8c1f
Merge pull request #169 from davidharrishmc/dev 
PMP Fix to issue 132
 2023-03-28 11:49:00 -05:00
David Harris
82ae3a74e2 Fixed bitrot in testfloat tests 2023-03-28 09:35:19 -07:00
David Harris
20d8c2476e 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
aa31b45d88 Fixed RV32 tests after PMP fix 2023-03-28 08:35:23 -07:00
David Harris
39d3bf8e8a 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
01113320f4 Set PMP to allow all user/supervisor accesses in WALLY-init-lib 2023-03-28 06:46:11 -07:00