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1874 Commits

Author SHA1 Message Date
David Harris
6988c8c37c divider control signal simplificaiton 2021-10-10 10:55:02 -07:00
David Harris
c2bb0324c6 Removed negedge flops from divider 2021-10-10 10:41:13 -07:00
bbracker
2f02287f91 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-10-10 10:10:06 -07:00
bbracker
a88ae5aaff use correct string formatting function 2021-10-10 10:09:59 -07:00
David Harris
3aa9e088c8 Simplified divider sign handling 2021-10-10 08:35:26 -07:00
David Harris
39bbeefa78 renamed DivStart 2021-10-10 08:32:04 -07:00
David Harris
64ed267825 renamed DivSigned 2021-10-10 08:30:19 -07:00
Katherine Parry
77fe00947e FMA matches diagram and lint warnings fixed 2021-10-09 17:38:10 -07:00
bbracker
6fce53d146 make testbench-linux halt on some discrepancies with QEMUw 2021-10-09 17:22:30 -07:00
kipmacsaigoren
96565f9435 rename adder in fpu for synthesis 2021-10-08 17:47:54 -05:00
kipmacsaigoren
7fde7aae6e Merging new changes into the old one's I've made in the OKstate servers 2021-10-08 17:47:11 -05:00
Kip Macsai-Goren
303beaa083 updated pmp output to correspond to test changes, commented out execute tests until cache/fence interaction works fully. 2021-10-08 15:40:18 -07:00
Kip Macsai-Goren
f3058f94c6 removed loops and simplified mask generation logic. PMP's now pass my tests and linux tests up to around 300M instructions. 2021-10-08 15:33:18 -07:00
kipmacsaigoren
2d4623b49c Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-10-08 12:01:44 -05:00
David Harris
3d0383c154 moved fp vectors into vectors subdirectory 2021-10-07 23:28:06 -04:00
David Harris
6dd85b80a2 Included TestFloat and SoftFloat 2021-10-07 23:03:45 -04:00
bbracker
55f6584e62 update wave-do 2021-10-07 19:16:52 -04:00
bbracker
5d60a3a9df update linux wave-do 2021-10-07 19:15:11 -04:00
bbracker
1824b2af13 fix div restarting bug 2021-10-07 18:55:00 -04:00
James E. Stine
28e147bb19 update scripts 2021-10-07 15:14:54 -05:00
bbracker
f799a3f5e0 more checkpoint reformatting 2021-10-07 04:27:45 -04:00
bbracker
76b551cdb3 don't log rf[0] to checkpoint 2021-10-07 00:58:33 -04:00
bbracker
91d9b6800b update linker scripts to look for vmlinux files 2021-10-06 16:55:38 -04:00
bbracker
a5fbc36864 update linker scripts to look for vmlinux files 2021-10-06 16:51:31 -04:00
James E. Stine
8429078d4f TV for conversion and compare 2021-10-06 14:38:32 -05:00
James E. Stine
199ce88b39 Add generic wave command file 2021-10-06 13:17:49 -05:00
James E. Stine
93668b5185 Update to testbench for FP stuff 2021-10-06 13:16:38 -05:00
kipmacsaigoren
8db7ce002d Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-10-06 11:52:34 -05:00
James E. Stine
2afa6e7a6e Add TV for testbenches (to be added shortly) however had to leave off fma due to size. The TV were slightly modified within TestFloat to add underscores for readability. The scripts I created to create these TV were also included 2021-10-06 08:56:01 -05:00
James E. Stine
a91c0c8fc7 Make changes to fpdiv - still working on clock issue with fsm that was changed from posedge to negedge - also updated fpdivsqrt rounding to handle testfloat 2021-10-06 08:26:09 -05:00
Skylar Litz
5bcae393c9 added delayed MIP signal 2021-10-04 18:23:31 -04:00
kipmacsaigoren
b72e94badf Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-10-04 12:28:03 -05:00
Ross Thompson
047bbcf3d7 updated fpga wavefile. 2021-10-03 12:14:22 -05:00
Ross Thompson
e9135f1fd5 Added fpga wave file. 2021-10-03 11:56:11 -05:00
Ross Thompson
8653a87e24 Added more debug flags. 2021-10-03 11:41:21 -05:00
David Harris
36bbf0c502 Divider cleaup 2021-10-03 11:22:34 -04:00
David Harris
10ef563211 Divider cleanup 2021-10-03 11:16:48 -04:00
David Harris
78eba19a1f Replacing XE and DE with SrcAE and SrcBE in divider 2021-10-03 11:11:53 -04:00
David Harris
48e33c79a9 Reduced cycle count for DIVW/DIVUW by two 2021-10-03 09:42:22 -04:00
David Harris
648cc8ef64 Divider comments cleanup 2021-10-03 01:12:40 -04:00
David Harris
2ae51d1852 Parameterized number of bits per cycle for integer division 2021-10-03 01:10:15 -04:00
David Harris
d468357c24 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-10-03 00:43:47 -04:00
David Harris
81601e26a3 Divider cleanup 2021-10-03 00:41:41 -04:00
David Harris
c690a863b5 Added suffixes to more divider signals 2021-10-03 00:32:58 -04:00
bbracker
7fdb0158d4 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-10-03 00:30:49 -04:00
bbracker
bb868f7a37 checkpoint generator bugfixes 2021-10-03 00:30:04 -04:00
David Harris
0c08a7c05c More divider cleanup 2021-10-03 00:20:35 -04:00
David Harris
5e6b2490cb Eliminated extra inversion for subtraction in divider 2021-10-03 00:10:12 -04:00
David Harris
418e9cd6e6 Added more pipeline stage suffixes to divider 2021-10-03 00:06:57 -04:00
David Harris
b3bded9e6c Added more pipeline stage suffixes to divider 2021-10-02 22:54:01 -04:00
David Harris
5db800fac3 Divider mostly cleaned up 2021-10-02 21:10:35 -04:00
David Harris
3a85c972b6 Partial divider cleanup 3 2021-10-02 21:00:13 -04:00
David Harris
5d64f04752 Partial divider cleanup 2 2021-10-02 20:57:54 -04:00
David Harris
f913305993 Partial divider cleanup 2021-10-02 20:55:37 -04:00
David Harris
afd6babc13 Divider code cleanup 2021-10-02 10:41:09 -04:00
David Harris
e33ef58e67 Added negative edge triggered flop to save inputs; do absolute value in first cycle for signed division 2021-10-02 10:36:51 -04:00
David Harris
4926ae343a Divider code cleanup 2021-10-02 10:13:49 -04:00
David Harris
852eb24731 Moved negating divider otuput to M stage 2021-10-02 10:03:02 -04:00
David Harris
9d63aa683f Moved muldiv result selection to M stage for performance 2021-10-02 09:38:02 -04:00
David Harris
fbe6e41169 Divide performs 2 steps per cycle 2021-10-02 09:19:25 -04:00
David Harris
e11c565a6f Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-09-30 23:15:34 -04:00
bbracker
6aa79657ed Revert "first attempt at verilog side of checkpoint functionality" 
This reverts commit fec96218f6.
 2021-09-30 20:45:26 -04:00
David Harris
caa36f267d Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-09-30 20:07:43 -04:00
David Harris
9d8e7f2714 Integer Divide/Rem passing all regression. 2021-09-30 20:07:22 -04:00
David Harris
760f4d66dd RV32 div/rem working signed and unsigned 2021-09-30 15:24:43 -04:00
Ross Thompson
fca9b9e593 Movied tristate to test bench level. 2021-09-30 11:27:42 -05:00
Ross Thompson
cefbcd1b0c Partially sd card read on fpga. 2021-09-30 11:23:09 -05:00
David Harris
42d573be57 SRT Division unsigned passing Imperas tests 2021-09-30 12:17:24 -04:00
bbracker
fec96218f6 first attempt at verilog side of checkpoint functionality 2021-09-28 23:17:58 -04:00
bbracker
a835572836 first attemtpt at checkpoint infrastructure 2021-09-28 22:33:47 -04:00
Ross Thompson
7ca801113e Added debugging directives to system verilog. 2021-09-27 13:57:46 -05:00
bbracker
7117c0493c condense testbench code; debug_level of 0 means don't check at all 2021-09-27 03:03:11 -04:00
Ross Thompson
7d749b201b added support to due partial fpga simulation. 2021-09-26 15:00:00 -05:00
Ross Thompson
4d1b02c068 Merge branch 'main' into fpga 2021-09-26 13:22:53 -05:00
Ross Thompson
3a9bc1e8c1 Updated the fpga bios code to emulate the same behavior as qemu's bootloader and it also copies 
the flash card to dram.
Fixed latch issue in the sd card reader.
 2021-09-26 13:22:23 -05:00
Ross Thompson
af53657eaf Merge branch 'sdc' into fpga 2021-09-25 19:33:07 -05:00
Ross Thompson
c917f14b6b Almost done writting driver for flash card reader. 2021-09-25 19:05:07 -05:00
Ross Thompson
69674f272a We now have a rough sdc read routine. 2021-09-25 17:51:38 -05:00
Ross Thompson
23425c8d71 Write of the SDC address register is correct. The command register is not yet working. 
The root problem is the command register needs to be reset at the end of the SDC transaction.
 2021-09-24 18:48:11 -05:00
Ross Thompson
86524a5f64 Now have software interacting with the initialization and settting the address register. 2021-09-24 18:30:26 -05:00
Ross Thompson
44196af61a Have program which checks for sdc init and issues read, but read done is 
not correctly being read back by the software.  The error is in how the
sdc indicates busy.
 2021-09-24 15:53:38 -05:00
Ross Thompson
17c62b7d5a Fixed lint errors in the SDC. 2021-09-24 12:38:48 -05:00
Ross Thompson
4f7bc1be48 Added either the sdModel or constant driver for the SDC ports in all test benches. 2021-09-24 12:31:51 -05:00
Ross Thompson
80e37d2291 Added SDC defines to each config mode. 
Added sd_top which is the sd card reader.
 2021-09-24 12:24:30 -05:00
Ross Thompson
9fdb1d3cc9 setup so the sdc does not need to load a model in the imperas test bench. 2021-09-24 11:30:52 -05:00
Ross Thompson
c644e940c2 Updated Imperas test bench to work with the SDC reader. 2021-09-24 11:22:54 -05:00
Ross Thompson
fea439b84d SDC to ABHLite interface partially done. 
Added SDC to adrdec and uncore.
 2021-09-24 10:45:09 -05:00
Ross Thompson
92ea88c57b Added clock gater and divider to generate the SDCCLK. 2021-09-23 17:58:50 -05:00
Ross Thompson
3cbbd15763 Partial implementation of SDC AHBLite interface. 2021-09-23 17:45:45 -05:00
Ross Thompson
3473f1e612 Started the AHBLite to SDC interface. 2021-09-22 18:08:38 -05:00
bbracker
3f96ff0ac0 switch testbench-linux's interrupts from xcause to mip and improve warning messages 2021-09-22 12:33:11 -04:00
bbracker
8b97f8154f update setup scripts to new testvector files 2021-09-22 12:31:10 -04:00
Ross Thompson
a7be88a43b Changes to make fpga synthesizable. 
Added preload to test simple program on wally in fpga.
 2021-09-22 10:54:13 -05:00
Ross Thompson
ec0d2bc7d7 Initial SD Card reader. 2021-09-22 10:50:29 -05:00
kipmacsaigoren
523d25ee7b Merge branch 'ppa' into main 2021-09-20 01:01:47 -05:00
Ross Thompson
221dbe92b2 Fixed the amo on dcache miss cpu stall issue. 2021-09-17 22:15:03 -05:00
Ross Thompson
e16c27225b Finished adding the d cache flush. Required ensuring the write data, address, and size are 
correct when transmitting to AHBLite interface.
 2021-09-17 13:03:04 -05:00
Kip Macsai-Goren
4de4774a71 more input changes on prioirty thermometer. passes lint 2021-09-17 13:07:21 -04:00
kipmacsaigoren
cc4ad218cb added new fun ways of putting inputs into the priority thermometer 2021-09-17 12:00:38 -05:00
Ross Thompson
cfd522da6b The E stage needs to be flushed on InvalidateICacheM. FlushM should be asserted. 2021-09-17 10:33:57 -05:00
Ross Thompson
0b1e59d075 Updated Dcache to fully support flush. This appears to work. 
Updated PCNextF so it points to the correct PC after icache invalidate.
Build root crashes with PCW mismatch and invalid register writes.
 2021-09-17 10:25:21 -05:00
Ross Thompson
615fd41e7b Added states and all control and data path logic to support d cache flush. This is currently untested; however the existing regresss test passes. 2021-09-16 18:32:29 -05:00
Ross Thompson
348187ea70 Added counters to walk through d cache flush. 2021-09-16 17:12:51 -05:00
Ross Thompson
d901f60a6d Added flush controls to cachway. 2021-09-16 16:56:48 -05:00
Ross Thompson
cae350abb7 Added invalidate to icache. 2021-09-16 16:15:54 -05:00
bbracker
a158558b83 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-09-15 17:31:11 -04:00
bbracker
ff5379fd95 fix regression 2021-09-15 17:30:59 -04:00
kipmacsaigoren
97c474327c changed priority circuits for synthesis and light cleanup 2021-09-15 12:24:24 -05:00
David Harris
9ae25b0cea Added Zfencei support in instruction decoder and configurations. Also added riscv-arch-test 32-bit tests to regression. 2021-09-15 13:14:00 -04:00
bbracker
ee1503a249 created script to determine which functions are most frequently used 2021-09-14 19:41:05 -04:00
David Harris
92385a1d51 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-09-13 12:41:07 -04:00
David Harris
9fa048980d Fixed MTVAL contents during breakpoint. Now all riscv-arch-test vectors pass in rv32 and rv64 2021-09-13 12:40:40 -04:00
Ross Thompson
c60edb1a04 Merge branch 'main' into fpga 2021-09-13 09:45:59 -05:00
Ross Thompson
cd6d1e0b12 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-09-13 09:41:34 -05:00
David Harris
7be1160a48 Cleaned up wally-arch test scripts 2021-09-13 00:02:32 -04:00
David Harris
bbb6c7bef7 Restored old integer divider 2021-09-12 22:07:52 -04:00
Ross Thompson
296da4f437 FPGA test bench and test program. 2021-09-12 20:41:54 -05:00
David Harris
dd1e7548ed Modified rxfull determination in UART, started division 2021-09-12 20:00:24 -04:00
Ross Thompson
3e590717c2 Removed one more genout bit. 2021-09-11 18:42:47 -05:00
Ross Thompson
9cbc6755df Merge branch 'main' into fpga 2021-09-11 16:00:23 -05:00
Ross Thompson
5922bae299 Added calibration input. 
fixed HRESP duplication.
 2021-09-11 15:59:27 -05:00
Ross Thompson
be864abcc5 Fixed bug with or_rows. 
If ROWS == 1 then the output was always X.  Fixed by adding if to check if ROWS==1.
 2021-09-11 15:51:11 -05:00
Ross Thompson
570aab4275 Fixed FPGA synthesis bug in the fpdiv fsm. Was creating latches. 2021-09-11 15:40:27 -05:00
Ross Thompson
5744796431 Fixed dcache to prevent latches in FPGA synthesized design. 2021-09-11 12:03:48 -05:00
Ross Thompson
af74a8c5cb Third attempt at fixing the write enables for the icache cacheway. 2021-09-09 15:49:27 -05:00
Ross Thompson
6f4542f063 Third attempt at fixing the write enables for the icache cacheway. 2021-09-09 15:08:10 -05:00
Ross Thompson
6965bde95c Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 
Refixed some bit width issues in the icache.
 2021-09-09 12:44:02 -05:00
Ross Thompson
1d370ca71f fixed some lint bugs. 2021-09-09 12:38:57 -05:00
bbracker
4a17af5b7c Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-09-09 13:22:31 -04:00
bbracker
3a520cb540 changed fix_mem to not use hardcoded file names 2021-09-09 13:22:24 -04:00
David Harris
12bd351edf Lint cleaning, riscv-arch-test testing 2021-09-09 11:05:12 -04:00
David Harris
9480f8efdb Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-09-08 16:00:12 -04:00
David Harris
118cb7fb87 Added testbench-arch for riscv-arch-test suite 2021-09-08 15:59:40 -04:00
Ross Thompson
86fbe2a654 Changed configs to support 4 ways set associative caches. 2021-09-08 12:52:49 -05:00
Ross Thompson
6550f38af9 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-09-08 12:47:03 -05:00
Ross Thompson
a15d6c1c96 Slight modification to wave file. 2021-09-08 10:40:46 -05:00
bbracker
bb84354a47 fixed bug where M mode was sensitive to S mode traps 2021-09-07 19:14:39 -04:00
bbracker
f8272c45d1 make testbench successfully deactivate TimerIntM so as to create a nice pulse 2021-09-07 15:36:47 -04:00
Ross Thompson
49e75d579c Set associate icache working, but way 0 is never written. 2021-09-07 12:46:16 -05:00
bbracker
da9a366d20 No longer forcing CSRReadValM because that can feedback to corrupt some CSRs 2021-09-06 22:59:54 -04:00
Ross Thompson
05455f8392 Changed name of memory in icache. 2021-09-06 20:54:52 -05:00
bbracker
502ddb3bb5 help in case a script is run accidentally 2021-09-06 16:23:45 -04:00
bbracker
b3bc3cf6d0 modified testbench to not allow Wally to generate its own interrupts (because of fundamental interrupt imprecision limitations) 2021-09-04 19:49:26 -04:00
bbracker
c463f177e9 restore functionality of being able to turn on waves at a certain instruction count; restore linux-waves.do because wave.do seems to be in disrepair 2021-09-04 19:45:04 -04:00
bbracker
135404174e switching over to hopefully more consistent QEMU simulated clock 2021-09-04 19:43:39 -04:00
bbracker
9fde9f09f2 replace triple gdb breakpoint continue with a double breakpoint ignore in hopes of improving parsing 2021-09-04 19:41:55 -04:00
James E. Stine
02a1fda650 Not sure I understand the Misaligned hptw - seems like a bug and should be L1_ADR instead of L0_ADR 2021-09-03 10:26:38 -05:00
bbracker
f1a39b467d output trace to linux-testvectors folder 2021-09-01 17:37:46 -04:00
Ross Thompson
2968623f9a Partial multiway set associative icache. 2021-08-30 10:49:24 -05:00
Katherine Parry
70f332fe2f FMA cleanup 2021-08-28 10:53:35 -04:00
Ross Thompson
6a9fa2fae3 Fixed bugs I introduced to the icache. 2021-08-27 15:00:40 -05:00
Ross Thompson
d433db3048 Renamed PCMux (icache) to SelAdr to match dcache. 
Removed unused cache files.
 2021-08-27 11:14:10 -05:00
Ross Thompson
96cbd8e785 Modified icache to no longer need StallF in the PCMux logic. Instead this is handled in the icachefsm. 
One downside is it increases the icache complexity.  However it also fixes an untested bug.  If a region
was uncacheable it would have been possible for the request to be made multiple times.  Now that is
not possible.  Additionally spills were oscillating between the spill hit states without this change.
The impact was 'benign' as the final spilled instruction always had the correct upper 16 bits.
 2021-08-27 11:03:36 -05:00
Ross Thompson
4ace7fe946 Renamed ICacheCntrl to icachefsm. 2021-08-26 15:57:17 -05:00
Ross Thompson
d6ff89b7e6 Swapped out the icachemem for cacheway. cacheway is modified to optionally support dirty bits. 2021-08-26 15:43:02 -05:00
Ross Thompson
aea7afead6 Finished moving data path logic from the ICacheCntrl.sv to icache.sv. 2021-08-26 13:06:24 -05:00
Ross Thompson
86fc632790 Moved data path logic from icacheCntrl to icache. 2021-08-26 10:58:19 -05:00
Ross Thompson
fd28c4f556 Removed unused logic in icache. 2021-08-26 10:49:54 -05:00
Ross Thompson
e4bbd3bbc7 Converted the icache type from logic to state type. 2021-08-26 10:41:42 -05:00
Ross Thompson
91fba80a6d Additional cleanup of ahblite. 2021-08-25 22:53:20 -05:00
Ross Thompson
8836d91896 Removed amo logic from ahblite. Removed many unused signals from ahblite. 2021-08-25 22:45:13 -05:00
Ross Thompson
596bc138bc Forgot to include a few files in the last few commits. 
Also reorganized the dcache by read cpu path, write cpu path, and bus interface path.
Changed i/o names on subwordread to match signals in dcache.
 2021-08-25 22:30:05 -05:00
Ross Thompson
0530047f53 Moved dcache fsm to separate module. 2021-08-25 21:37:10 -05:00
Ross Thompson
d23b860c96 Moved LRU and storage for the LRU into a single module. Also found a subtle bug with the update address used to write the cache's memory. 
This was correct for the LRU but incorrect for the data, tag, valid, and dirty storage.
 2021-08-25 21:09:42 -05:00
Ross Thompson
c5e2443298 Replaced dcache generate ORing with or_rows. 2021-08-25 13:46:36 -05:00
Ross Thompson
e5336f4ee1 Rename of DCacheMem to cacheway. 
simplified dcache names.
 2021-08-25 13:33:15 -05:00
Ross Thompson
e9a1dc90f6 Removed generate around the dcache memories. 2021-08-25 13:27:26 -05:00
Ross Thompson
2ccf479354 Moved more logic inside the dcache memory. 2021-08-25 13:17:07 -05:00
Ross Thompson
35e57a7c61 partial dcache reorg. 2021-08-25 12:42:05 -05:00
Ross Thompson
983524e81b Updated linux test bench documenation and scripts. 2021-08-25 10:54:47 -05:00
David Harris
7d24ed3c51 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-08-25 06:47:20 -04:00
David Harris
3fa55a01f4 simplified or_rows generation and renamed oneHotDecoder to onehotdecoder 2021-08-25 06:46:41 -04:00
Ross Thompson
fe378f2692 Added function tracking to linux test bench. 2021-08-24 11:08:46 -05:00
Ross Thompson
0cc47f3daf Modified the preformance counter's InstRet to include ECALL and EBREAK by changing the hazard logic so these instructions don't self flush the W stage. 2021-08-23 15:46:17 -05:00
Ross Thompson
c31b7b4dc5 Wally previously was overcounting retired instructions when they were flushed. 
InstrValidM was used to control when the counter was updated.  However this is
not suppress the counter when the instruction is flushed in the M stage.
 2021-08-23 12:24:03 -05:00
Ross Thompson
9fdcc6c9ca Renamed output of qemu trace. 2021-08-22 22:56:34 -05:00
Ross Thompson
2825074114 Confirmed David's changes to the interrupt code. 
When a timer interrupt occurs it should be routed to the machine interrupt
pending MTIP even if MIDELEG[5] = 1 when the current privilege mode is
Machine.  This is true for all the interrupts. The interrupt should not be
masked even though it is delegated to a lower privilege.  Since the CPU
is currently in machine mode the interrupt must be taken if MIE.

Additionally added a new qemu script which pipes together all the parsing and
post processing scripts to produce the singular all.txt trace without the
massivie intermediate files.
 2021-08-22 21:36:31 -05:00
David Harris
4677b4bb38 possible interrupt code 2021-08-22 17:02:40 -04:00
Ross Thompson
ddbc659d7b Fixed bug with coremark do file. When I moved the testbench to have a common set of files i forgot to remove the old path reference to function_radix.sv in wally-coremark_bare.do. 2021-08-19 10:33:11 -05:00
Ross Thompson
65870877c3 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-08-17 16:06:54 -05:00
Ross Thompson
91b51c698e Minor changes to dcache. 2021-08-17 15:22:10 -05:00
Katherine Parry
c8847b27e8 all conversions go through the execute stage result mux 2021-08-16 13:06:09 -04:00
Ross Thompson
a70d51f4c9 Modified the hptw's simulation error message so that synthesis does not attempt to include this statement. 2021-08-16 10:02:29 -05:00
Ross Thompson
36761d9155 Fixed syntax errors in some floating point modules. This came up in 
Xilinx synthesis.
 2021-08-15 16:48:49 -05:00
Ross Thompson
6c57002d0e Added logic to linux test bench to not stop simulation on csr write faults. 2021-08-15 11:13:32 -05:00
Ross Thompson
af2c6fd6ff Updated linux-wave.do to have cursors at the timer interrupt problem. 2021-08-13 17:29:37 -05:00
Ross Thompson
766c829d31 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-08-13 17:23:04 -05:00
Ross Thompson
55fda4de62 Switched ExceptionM to dcache to be just exceptions. 
Added test bench logic to hold forces until the W stage is unstalled.
 2021-08-13 15:53:50 -05:00
Ross Thompson
32db21659f Fixed bugs with CSR checking. The parsing algorithm was messing up the token order after the CSR token. 2021-08-13 14:53:43 -05:00
Ross Thompson
e141a00934 Cleaned up the linux testbench by removing old code and signals. 
Added back in the csr checking logic.
Added code to force timer, external, and software interrupts by using the expected
values from qemu's (m/s)cause registers.
Still need to prevent wally's timer interrupt.
 2021-08-13 14:39:05 -05:00
Katherine Parry
aedd71d570 move some FPU select muxs to execute stage 2021-08-13 14:41:22 -04:00
Ross Thompson
6a6d5e9b15 Added documentation about how the dcache and ptw interact. 2021-08-12 18:05:36 -05:00
Ross Thompson
814fd80b0f Optimized subwordread to reduce critical path from 8 muxes to 5 muxes + 1 AND gate. 2021-08-12 13:36:33 -05:00
Ross Thompson
9ff9c4dff9 Minor cleanup of the linux test bench. 2021-08-12 11:14:55 -05:00
Ross Thompson
565c01709d Removed unused states from dcache fsm. 2021-08-11 17:06:09 -05:00
Ross Thompson
2be625d8b9 Modified invalid plic reads to return 0 rather than deadbeaf. 2021-08-11 16:56:22 -05:00
Ross Thompson
4b25fed6d8 Simplified Dcache by sharing the read data mux with the victim selection mux. 2021-08-11 16:55:55 -05:00
Ross Thompson
22f274c51e Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-08-10 13:36:29 -05:00
Ross Thompson
67c1028862 Dcache and LSU clean up. 2021-08-10 13:36:21 -05:00
Katherine Parry
e00f181bcf LZA added to FMA and attemting a merged FMA and adder in synthesis 2021-08-10 13:57:16 -04:00
Ross Thompson
cce0571925 Fixed another bug with the atomic instrucitons implemention in the dcache. 2021-08-08 22:50:31 -05:00
Ross Thompson
d3be04b7de Fixed another bug with AMO. If the CPU stalled as an AMO was finishing, the write to the 
cache's SRAM would occur.  Then in the next cycle the SRAM would be reread while stalled
providing the new update dated rather than the correct older value.
 2021-08-08 11:42:10 -05:00
Ross Thompson
fc7016eea6 Fixed the AMO dcache bug. The subword write needs to occur before the AMO logic. 
Fixed logic for trace update in the M and W stages.  The M stage should not update if there
is an instruction fault.
 2021-08-08 00:28:18 -05:00
Ross Thompson
aa9a5d879b Finally past the CLINT issues. 2021-08-06 16:41:34 -05:00
Ross Thompson
0bfbcef8ab Now past the CLINT issues. 2021-08-06 16:16:39 -05:00
Ross Thompson
9be10cdc8b Partial conversion of the linux trace checking to read in the file in the Memory Stage so it is possible to overwrite registers, memory, and interrupts. 2021-08-06 16:06:50 -05:00
Ross Thompson
c749d08542 fixed the read timer issue but we still have problems with interrupts and i/o devices. 2021-08-06 10:16:06 -05:00
Ross Thompson
3582be4dbb Fixed issue with desync of PCW and ExpectedPCW in linux test bench. The ERROR macro had a 10 ns delay which caused the trace to skip 1 instruction. 2021-08-05 16:49:03 -05:00
Ross Thompson
37ba6b19e5 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-07-30 17:57:13 -05:00
Ross Thompson
f808b29065 Added some comments to linux testbench. 2021-07-30 17:57:03 -05:00
Ross Thompson
e166cc84ee Patched up changes for wally-pipelined.do and wally-buildroot.do to support moved common testbench files. 2021-07-30 14:24:50 -05:00
Ross Thompson
74fba4bb06 Moved the test bench modules to a common directory. 2021-07-30 14:16:14 -05:00
Ross Thompson
7b9e53fbe5 Removed 1 cycle delay on store miss. 
Changed some logic to partially support atomics.
 2021-07-30 14:00:51 -05:00
Ross Thompson
d8878581f4 Created new linux test bench and parsing scripts. 2021-07-29 20:26:50 -05:00
Katherine Parry
d60e394ef9 all fpu units use the unpacking unit 2021-07-28 23:49:21 -04:00
Ross Thompson
915d8136e5 Fixed bug which caused stores to take an extra clock cycle. 2021-07-26 12:22:53 -05:00
Ross Thompson
79ebc53977 Fixed bug with the compressed immediate generation. Several formats should zero extend. 2021-07-26 11:55:31 -05:00
Ross Thompson
ef55b30e99 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
 2021-07-26 11:55:00 -05:00
Ross Thompson
60177b92a6 Added additional interlock for itlb miss -> instrPageFault with concurrent memory operation. 2021-07-25 23:14:28 -05:00
Katherine Parry
30ac22edff fixed some fpu lint errors 2021-07-24 16:41:12 -04:00
Katherine Parry
6c4aa624a5 fpu cleanup 2021-07-24 15:00:56 -04:00
Katherine Parry
ef28679721 fpu cleanup 2021-07-24 14:59:57 -04:00
Kip Macsai-Goren
3008111bcd added tests for 64/32 bit pma/pmp checker. They compile, but skip OVPsim simulation. They DO NOT pass regression yet 2021-07-23 16:02:42 -04:00
Kip Macsai-Goren
381a93b45b added sfence to legal instructions, zeroed out rom file to populate for tests 2021-07-23 15:55:08 -04:00
Kip Macsai-Goren
da9ead2d95 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-23 15:16:01 -04:00
bbracker
b093bf84a4 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-23 14:00:52 -04:00
bbracker
0e64b99dc0 testbench workaround for QEMU's SSTATUS XLEN bits 2021-07-23 14:00:44 -04:00
kipmacsaigoren
f3579032bd Cleaned up priority thermometer verilog. passses regression, ideally shortens critical path through pmp's 2021-07-23 11:57:58 -05:00
David Harris
5d2b30e332 Removed LEVELx states from HPTW 2021-07-23 08:11:15 -04:00
Ross Thompson
9939c66a1f Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-07-22 19:42:32 -05:00
Ross Thompson
3e916da36e Removed the hardware page table walker fault state from the icache so that the icache will only unstall CPU for 1 cycle. 
In the dcache we added a register to save the load read data in the event an itlb miss occurs concurrently with
the load in the memory stage.  Under this situation we need to record the load ReadDataM into a temporary register,
SavedReadDataM.  At this time the CPU is stall; however the walker is going to change the address in the dcache
which destroys this data.  When leaving the PTW_READY state via a walker instruction fault or ITLB write we select
this SavedReadDataM so that the CPU can capture it.
 2021-07-22 19:42:19 -05:00
Kip Macsai-Goren
52faa22774 include SFENCE.VMA in legal instructions 2021-07-22 20:24:24 -04:00
David Harris
98660e0d19 Minor unpacking cleanup 2021-07-22 17:52:37 -04:00
Ross Thompson
551e3491af Moved the ReadDataW register into the datapath. 
The StallW from the hazard unit controls this.
Previously it was in the dcache and controlled by both the HPTW and hazard unit.
This caused an issue when the CPU expected the data to stay constant while
stalled, but the HPTW was causing the data to be modified.
 2021-07-22 14:52:03 -05:00
Ross Thompson
fbbfc799b9 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-07-22 14:05:08 -05:00
Ross Thompson
9c90b4bdf7 Fixed bug with the itlb fault not dcache ptw ready state to ready state. 2021-07-22 14:04:56 -05:00
David Harris
c9890afb7f Move Z sign swapping out of unpacker 2021-07-22 14:32:38 -04:00
David Harris
31be570461 Move Z=0 mux out of unpacker. 2021-07-22 14:28:55 -04:00
David Harris
63718cef8f Move Z=0 mux out of unpacker. 2021-07-22 14:22:28 -04:00
David Harris
21a65f45cd Partial work on Unpacking exponents to larger word size. FCVT and FMA are presently broken. 2021-07-22 14:18:27 -04:00
David Harris
b53eb6d030 Simplify unpacker 2021-07-22 13:42:16 -04:00
David Harris
19dac66264 Simplify unpacker 2021-07-22 13:40:42 -04:00
David Harris
44141047ef Removed Assumed1 from FPU interface 2021-07-22 13:04:47 -04:00
David Harris
3ad2170ffd Simplified interface to fclassify and fsgn (fixed) 2021-07-22 12:33:38 -04:00
David Harris
5e155e4fd1 Simplified interface to fclassify and fsgn 2021-07-22 12:30:46 -04:00
Ross Thompson
b4029a2848 Cleaned up icache and dcache. 2021-07-22 11:06:44 -05:00
Ross Thompson
3dd89a7e62 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-07-22 10:38:24 -05:00
Ross Thompson
25a8920a69 Tested all numbers of ways for dcache 1, 2, 4, and 8. 2021-07-22 10:38:07 -05:00
bbracker
d3059dd04c fix UART RX FIFO bug where tail pointer can overtake head pointer 2021-07-22 02:09:41 -04:00
bbracker
57a2917997 make address translator signals visible in waveview 2021-07-21 20:07:49 -04:00
bbracker
cca16cc5b4 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-21 20:07:03 -04:00
bbracker
6e460c5032 replace physical address checking with virtual address checking because address translator is broken 2021-07-21 19:47:13 -04:00
bbracker
25391bcfce hardcoded hack to fix missing STVEC vector 2021-07-21 19:34:57 -04:00
Ross Thompson
dac93bb366 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-07-21 16:44:32 -05:00
Kip Macsai-Goren
c69a5dc8a6 fixed issue with tlbflush remaining high during a stalled sfence instruction 2021-07-21 17:43:36 -04:00
Ross Thompson
71375ba655 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-07-21 16:39:07 -05:00
Ross Thompson
7785401281 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-07-21 14:56:30 -05:00
Ross Thompson
313bc5255c Improved address bus names and usages in the walker, dcache, and tlbs. 
Merge branch 'walkerEnhance' into main
 2021-07-21 14:55:09 -05:00
Ross Thompson
310b454fa1 Added comment about better muxing. 2021-07-21 14:40:14 -05:00
Ross Thompson
5860f147d4 4 way set associative is now working. 2021-07-21 14:01:14 -05:00
Kip Macsai-Goren
4eaf95de60 Fixed TLB parameterization and valid bit flop to correctly do instr page faults 2021-07-21 14:44:43 -04:00
Katherine Parry
01f0b4e5df FDIV and FSQRT work 2021-07-21 14:08:14 -04:00
bbracker
f9c0d33773 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-21 13:04:11 -04:00
bbracker
82ce85c24f progress on recovering from QEMU's errors 2021-07-21 13:00:32 -04:00
Ross Thompson
e0990535e1 Fixed remaining bugs in 2 way set associative dcache. 2021-07-21 10:35:23 -05:00
Ross Thompson
3f780f012a Finally fixed bug with the set associative design. The issue was not in the LRU but instead in the way selection mux. 
Also forgot to include cacheLRU.sv file.
 2021-07-20 23:17:42 -05:00
Katherine Parry
b9081e514c FMA parameterized 2021-07-20 22:04:21 -04:00
Ross Thompson
14e949d6e3 Partially working 2 way set associative d cache. 2021-07-20 17:51:42 -05:00
bbracker
f9b6bd91f5 fix PC checking during InstrPageFault; fix order of S-mode CSR checking; rename peripheral scopes to not be genblk 2021-07-20 17:55:44 -04:00
bbracker
a02694a529 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-20 15:04:13 -04:00
bbracker
a3823ce3a9 commented out old hack that used hardcoded addresses 2021-07-20 15:03:55 -04:00
David Harris
e5e3f5abe6 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-20 14:46:58 -04:00
David Harris
1f3dfa20f6 flag for optional boottim 2021-07-20 14:46:37 -04:00
Ross Thompson
4c785845f3 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-07-20 13:27:58 -05:00
Ross Thompson
00081ebc68 Replaced FinalReadDataM with ReadDataM in dcache. 2021-07-20 13:27:29 -05:00
bbracker
6b72b1f859 ignore mhpmcounters because QEMU doesn't implement them 2021-07-20 13:37:52 -04:00
bbracker
a1ea654b11 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-20 12:08:46 -04:00
David Harris
e1a1a8395e Parameterized I$/D$ configurations and added sanity check assertions in testbench 2021-07-20 08:57:13 -04:00
bbracker
077662bfa1 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-20 05:40:49 -04:00
bbracker
9e658466e6 testbench hack to ignore MTVAL for illegal instr faults; testbench upgrade to not check PCW for illegal instr faults; testbench hack to not check speculative instrs following an MRET (it seems MRET has 1 stage more latency than a branch instr) 2021-07-20 05:40:39 -04:00
James E. Stine
12e09a7ace slight mod to fpdiv - still bug in batch vs. non-batch 2021-07-20 01:47:46 -04:00
bbracker
3b10ea9785 major fixes to CSR checking 2021-07-20 00:22:07 -04:00
Ross Thompson
365485bd8b Added performance counters for dcache access and dcache miss. 2021-07-19 22:12:20 -05:00
Ross Thompson
508c3e35af Restored TIM range. 2021-07-19 21:17:31 -05:00
bbracker
99fa2bbbc3 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-19 19:30:40 -04:00
bbracker
cb15d7e4c7 change debugBuildroot because GDB formatted list is now 50 lines long per instruction (we lost 6 CSRs on the whole) 2021-07-19 19:30:29 -04:00
David Harris
23b76a724d Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-19 18:19:59 -04:00
David Harris
4d40b5faef Added cache configuration to config files 2021-07-19 18:19:46 -04:00
bbracker
c1d63fe77c MemRWM shouldn't factor into PCD checking 2021-07-19 18:03:30 -04:00
bbracker
4d10cfc98b create qemu_output.txt 2021-07-19 18:02:41 -04:00
bbracker
c8203c171e Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-19 17:11:49 -04:00
bbracker
f7d040af1e make testbench ignore MIP because of timing imprecision and because QEMU maybe isn't getting MTIP right anyways 2021-07-19 17:11:42 -04:00
Kip Macsai-Goren
5880cbafe4 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-19 16:46:46 -04:00
bbracker
1aeef4e7d1 remove busybear from regression because it is not keeping up with buildroot's changes to testbench-linux 2021-07-19 16:22:05 -04:00
bbracker
bc5222e721 put MTIMECMP's reset value back to 0 because the reset value of -1 broke the MCAUSE tests 2021-07-19 16:19:24 -04:00
bbracker
65df5c087b adapt testbench to removal of ReadDataWEn signal 2021-07-19 15:42:14 -04:00
bbracker
ae5663a244 adapt testbench to removal of signal 2021-07-19 15:41:50 -04:00
bbracker
64e0fe4c5a whoops MTIMECMP is always 64 bits 2021-07-19 15:40:53 -04:00
bbracker
bdb1ece183 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-19 15:13:14 -04:00
bbracker
cd469035be make testbench check the same CSRs that QEMU logs; change CLINT to reset MTIMECMP to -1 so that we don't instantly get a timer interrupt upon reset 2021-07-19 15:13:03 -04:00
Kip Macsai-Goren
2614df627e added changes to priority encoders from synthesis branch (correctly this time I hope) 2021-07-19 15:06:14 -04:00
Ross Thompson
bf3ca50a9a Furture simplification of the dcache ReadDataW update. 2021-07-19 12:46:31 -05:00
Ross Thompson
9f76e1d64d Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-07-19 12:32:35 -05:00
Ross Thompson
b61dad4b83 Fixed a complex bug in the dcache, where back to back loads would lose data on the load before a stall occurred. The solution was to modify the logic for SelAdrM in the dcache so that a stall would cause the SRAM to reread the address in the Memory stage rather than Execution stage. This also required updating the ReadDataWEn control so it is always enabled on ~StallW. 2021-07-19 12:32:16 -05:00
bbracker
1b0b9d0f79 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-19 13:21:04 -04:00
bbracker
f31a0ded75 change buildroot expectations to match reality 2021-07-19 13:20:53 -04:00
Ross Thompson
4d53b9002f Broken. 
Possible change to walker, dcache, tlb addressing.
Improves the naming of address signals.
But has a problem when the walker finishes the dcache does not get the correct
address on the cycle the DTLB is updated.  This leads to incorrect index
selection in the dcache.
 2021-07-19 10:33:27 -05:00
bbracker
67eb1f5c6b change sram1rw to have a small delay so that we don't have signals changing on clock edges 2021-07-19 11:30:07 -04:00
David Harris
2ed6285a3d Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-19 10:34:18 -04:00
James Stine
7d571f27a6 delete sbtm_a4 and sbtm_a5 as they are not needed 2021-07-19 08:06:00 -05:00
James Stine
186b5dee69 remove sbtm3.sv - not needed 2021-07-19 08:00:53 -05:00
James Stine
5b1f9797f5 update part I on sbtm change 2021-07-19 07:59:27 -05:00
David Harris
8e01007d1c Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-19 00:25:06 -04:00
Katherine Parry
c9180f4ebd FDIV and FSQRT passes when simulating in modelsim 2021-07-18 23:00:04 -04:00
bbracker
e4a50a5bb8 change memread testvectors to not left-shift bytes and half-words 2021-07-18 21:49:53 -04:00
David Harris
46ab609498 Updated FMA1 with parameterized size 2021-07-18 20:40:49 -04:00
bbracker
5e9dcb3f1c linux testbench progress 2021-07-18 18:47:40 -04:00
David Harris
ed64d37e65 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-18 17:36:29 -04:00
David Harris
4f8f52f283 Added FLEN, NE, NF to config and started using these in FMA1 2021-07-18 17:28:25 -04:00
Katherine Parry
60dabb9094 fdivsqrt inegrated, but not completley working 2021-07-18 14:03:37 -04:00
David Harris
8317be5aed Renamed pagetablewalker to hptw 2021-07-18 04:11:33 -04:00
David Harris
c75d70126f LSUArb: Removed Demuxes on ReadDataW, DataMiisalignedM, HPTWStall 2021-07-18 03:51:30 -04:00
David Harris
3f7a3b280e HPTW: Simpliifieid PRegEn 2021-07-18 03:35:38 -04:00
David Harris
60bd27a40e Removed EndWalk signal and simplified TLBMissReg 2021-07-18 03:26:43 -04:00
Ross Thompson
14220684b6 Fixed bug with rv32a/WALLY-LRSC test in imperas. Minor issue. 2021-07-17 21:02:24 -05:00
Ross Thompson
009c5314b4 Fixed LRSC in 64bit version. 32bit version is broken. 2021-07-17 20:58:49 -05:00
David Harris
8bdf1eaf0f added lrsc.sv 2021-07-17 21:15:08 -04:00
David Harris
8d348dacce Started atomics 2021-07-17 21:11:41 -04:00
David Harris
574f7d9c32 moved subwordread to lsu 2021-07-17 20:37:20 -04:00
David Harris
e82374d19f Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-17 20:01:23 -04:00
David Harris
9a86fc899b LSU cleanup 2021-07-17 20:01:03 -04:00
David Harris
d9750c16a5 Pushing HPTWPAdrM flop into LSUArb 2021-07-17 19:39:18 -04:00
David Harris
586341a41a Simplified VPN case statement 2021-07-17 19:34:01 -04:00
Ross Thompson
9cfbc4aec0 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-07-17 18:27:44 -05:00
David Harris
35b7577be2 Finished HPTW TranslationPAdr simlification 2021-07-17 19:27:24 -04:00
Ross Thompson
1aac97030a Before returning to the ready state the dcache must set SelAdr = 0 on the cycle before. 2021-07-17 18:26:29 -05:00
David Harris
2b1fdfbae2 Further TranslationVAdr simplification 2021-07-17 19:24:37 -04:00
David Harris
b785a20f90 Continued Translation Address Cleanup of TranslationPAdrMux 2021-07-17 19:16:56 -04:00
David Harris
fc88b3a693 Continued Translation Address Cleanup 2021-07-17 19:09:13 -04:00
David Harris
6536ef8dce Refining address interface between HPTW and LSU 2021-07-17 19:02:18 -04:00
David Harris
7b92e7e590 Fixed bad register in I-FSD-01 Imperas test. 2021-07-17 17:08:07 -04:00
David Harris
a67292b5f3 trap.sv comment cleanup 2021-07-17 16:01:07 -04:00
David Harris
c1c3249709 trap.sv cleanup 2021-07-17 15:57:10 -04:00
David Harris
af5e1f7f39 Finished removing PageTableEntry redundant signals from hptw 2021-07-17 15:50:52 -04:00
David Harris
e182cac9bc hptw: Removed NonBusTrapM from LSU 2021-07-17 15:24:26 -04:00
David Harris
2f81e4c70d hptw: Removed NonBusTrapM from LSU 2021-07-17 15:22:24 -04:00
David Harris
428a9c1ca3 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-07-17 15:11:43 -04:00
David Harris
863e6e72d6 hptw: Propagating PageTableEntryF removal through IFU 2021-07-17 15:04:39 -04:00
David Harris
a855e0170e hptw: Propagating PageTableEntryF removal through LSU 2021-07-17 15:01:01 -04:00
bbracker
8d65d50085 separated buildroot debugging from buildroot logging 2021-07-17 14:52:34 -04:00