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588 Commits

Author SHA1 Message Date
David Harris
861fbd698b Run 4M instructions in buildroot test to get through kernel & VirtMem startup 2022-04-18 01:29:38 +00:00
Ross Thompson
c045e3afd8 Added back the instret counter to ILA. 2022-04-17 18:44:07 -05:00
Ross Thompson
c409bde6ae fixed no forcing bug in linux testbench. 2022-04-17 17:49:51 -05:00
David Harris
2819a1c305 Remvoed bytemask anding from FinalWriteDataM in subwordwrite 2022-04-17 22:33:25 +00:00
David Harris
812b56acc6 Prefix comparator cleanup 2022-04-17 21:53:11 +00:00
David Harris
de5b61291f Experiments with prefix comparator; minor fixes in WFI and testbench warnings 2022-04-17 21:43:12 +00:00
Kip Macsai-Goren
1f9c987efe added new tests to makefrag and tests.vh 2022-04-17 21:00:36 +00:00
Ross Thompson
059c04e2a8 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-04-17 15:23:46 -05:00
Ross Thompson
c16dec88de Increased uart baud rate to 230400. 
Added uart signals to debugger.
 2022-04-17 15:23:39 -05:00
David Harris
2436534687 First implementation of WFI timeout wait 2022-04-17 17:20:35 +00:00
David Harris
83d283354c Added comments in fcvt 2022-04-17 16:53:10 +00:00
David Harris
aa1bac361d Simplified SLT logic 2022-04-17 16:49:51 +00:00
Ross Thompson
238cc9f9fd Commented output power analysis to speed simulation. 2022-04-16 15:32:59 -05:00
Ross Thompson
16b3c64234 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-04-16 14:59:03 -05:00
Ross Thompson
b9a19304db Fixed possible bugs in LRSC. 2022-04-16 14:45:31 -05:00
David Harris
68d9c99fba Added WFI support to IFU to keep it in the pipeline 2022-04-14 17:26:17 +00:00
David Harris
a28831b83e Added WFI to the testbench instruction name decoder 2022-04-14 17:12:11 +00:00
David Harris
855d68afde WFI should set EPC to PC+4 2022-04-14 17:05:22 +00:00
bbracker
fe53dd1683 fix testbench timing bug where interrupt forcing didn't happen soon enough because it was waiting on StallM 2022-04-14 09:23:21 -07:00
bbracker
eb21e34000 fix ReadDataM forcing 2022-04-13 15:32:00 -07:00
Ross Thompson
2e8afd071e Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-04-13 13:39:47 -05:00
bbracker
5de92af0b1 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-04-13 05:35:56 -07:00
bbracker
735c75af55 change interrupt spoofing to happen at negative clock edges 2022-04-13 04:31:23 -07:00
bbracker
52ed99ca1b improve testbench-linux.sv to correctly load in PLIC IntEnable checkpoint and to handle edge case where interrupt is caused by enabling interrupts in SSTATUS 2022-04-13 03:37:53 -07:00
bbracker
03f1c01f14 whoops forgot to update AttemptedInstructionCount in interrupt spoofing 2022-04-13 00:49:37 -07:00
bbracker
d3e9703c19 change testbench-linux to by default use attempted instruction count for warning/error messages 2022-04-12 21:22:08 -07:00
Ross Thompson
bb6f1cf816 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-04-12 19:38:04 -05:00
Ross Thompson
fc173a7954 Missed the force on uart for no tracking. 2022-04-12 19:37:44 -05:00
Ross Thompson
ff826fdb02 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-04-12 17:56:48 -05:00
Ross Thompson
7d0462dc59 UART and clock speed changes to support 30Mhz. 2022-04-12 17:56:36 -05:00
Ross Thompson
ab9738d3be Hacky fix to prevent ITLBMissF and TrapM bug. 2022-04-12 17:56:23 -05:00
Ross Thompson
02d6829f8e Found the complex TrapM giving back the wrong instruction bug. 
As I was reviewing the busfsm I found a typo.

  assign UnCachedLSUBusRead = (BusCurrState == STATE_BUS_READY & UnCachedAccess & LSURWM[1] & IgnoreRequest) |
							  (BusCurrState == STATE_BUS_UNCACHED_READ);

It should be

  assign UnCachedLSUBusRead = (BusCurrState == STATE_BUS_READY & UnCachedAccess & LSURWM[1] & ~IgnoreRequest) |
							  (BusCurrState == STATE_BUS_UNCACHED_READ);

There is a ~ missing before IgnoreRequest. I restarted the FPGA and had it trigger on the specific faulting event.  Sure enough the bus makes an IFUBusRead, which UncachedLSUBusRead feeds into.   The specific instruction in the fetch stage had an ITLBMiss with a physical address in an unmapped area which is interpreted as an uncached operation.  IgnoreRequest is is high if there is a TrapM | ITLBMissF.  Without the & ~IgnoreRequest the invalid address translation makes the request.
 2022-04-11 13:07:52 -05:00
Ross Thompson
f995ec2a54 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-04-10 13:41:27 -05:00
Ross Thompson
c3d9eafe60 Modified the linux test bench to take a new parameter which can run simulation from 470M out to login prompt. This shouldn't break the regression test or checkpointing. 2022-04-10 13:27:54 -05:00
bbracker
aa71fe542d upgrade testbench interrupt forcing such that first m_timer interrupt now successfully spoofs 2022-04-08 13:45:27 -07:00
bbracker
3b6cb5f0ba small signs of life on new interrupt spoofing 2022-04-08 12:32:30 -07:00
Ross Thompson
2294cbc1c6 Possible fix for trap concurent with xret. Fixes the priority so trap has higher priority than either sret or mret. Previous code had priority to xret in the trap logic and privilege logic, but not the csrsr logic. This caused partial execution of the instruction. 2022-04-07 16:56:28 -05:00
Ross Thompson
5e4682fb65 Fixed typo in tests.vh 2022-04-07 16:28:28 -05:00
Katherine Parry
c307cff503 fixed errors and warnings in rv32e 2022-04-07 17:21:20 +00:00
Kip Macsai-Goren
7425c49f58 updated test signature locations 2022-04-06 07:28:38 +00:00
Kip Macsai-Goren
c82667653c Added missing ZFH macro to new configs 2022-04-06 07:13:51 +00:00
David Harris
c4f5b3fd7c Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2022-04-05 23:23:47 +00:00
David Harris
c22d6f2848 Added bootmem source ccode 2022-04-05 23:22:53 +00:00
Ross Thompson
9517fe9faf Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-04-05 15:42:07 -05:00
Ross Thompson
7abde2b566 Increazed fpga clock speed to 35Mhz. 
linux boot is much faster.
 2022-04-05 15:09:49 -05:00
Katherine Parry
20885f4dea generating all testfloat vectors 2022-04-04 17:17:12 +00:00
Ross Thompson
0ed34b8e63 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-04-04 10:56:10 -05:00
Ross Thompson
64846c800e Constraint changes for 40Mhz wally. 2022-04-04 10:50:48 -05:00
Ross Thompson
0806d1a134 Updated the bootloader to use the flash card divider. This will allow wally to run at a faster speed than flash. 2022-04-04 10:38:37 -05:00
Ross Thompson
d83db2cde5 Fixed the SDC clock divider so it actually can work during reset. This will enable the fpga to operate at a faster clock while the SDC is < 10Mhz. 2022-04-04 09:57:26 -05:00
Ross Thompson
fd9a33e453 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-04-03 17:56:55 -05:00
Ross Thompson
e7abcd862f fpga simulation works again. 2022-04-03 17:31:07 -05:00
David Harris
6966554ee8 Fixed bug with CSRRS/CSRRC for MIP/SIP 2022-04-03 20:18:25 +00:00
Ross Thompson
d135866098 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-04-02 16:39:54 -05:00
Ross Thompson
5ef6cde52e Added more ILA signals. 2022-04-02 16:39:45 -05:00
Kip Macsai-Goren
cdea062287 added RV64IA config to have a config without compressed instructions 2022-04-02 18:24:08 +00:00
Ross Thompson
987236e463 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-04-01 17:18:25 -05:00
Ross Thompson
57eba4355e Updated the fpga test bench. 2022-04-01 17:14:47 -05:00
Ross Thompson
f58a1eff9e Fixed linting issues. 2022-04-01 15:20:45 -05:00
Ross Thompson
178ecaa451 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-04-01 12:50:34 -05:00
Ross Thompson
0340c0fd44 Added wave config 
added new signals to ILA.
 2022-04-01 12:44:14 -05:00
bbracker
cbff9a7755 expand WALLY-PERIPH test to use SEIP on PLIC context 1 2022-03-31 18:02:06 -07:00
bbracker
36c30b14c1 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-03-31 17:54:43 -07:00
bbracker
e60139d3ee fix lingering overrun error bug 2022-03-31 17:54:32 -07:00
Ross Thompson
cb945a6a6a Added PLIC to ILA. 2022-03-31 16:44:49 -05:00
Ross Thompson
1586f893b1 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-03-31 16:30:55 -05:00
Ross Thompson
7e05935348 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-03-31 15:50:04 -05:00
Ross Thompson
e81f317764 Notes on what to change in ram.sv. 2022-03-31 15:48:15 -05:00
bbracker
d32e1147bf Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-03-31 13:46:32 -07:00
bbracker
34c94f150e simplify plic logic 2022-03-31 13:46:24 -07:00
David Harris
2ed1c9f14f Added SystemVerilog flag to fma.do so that fma16 compiles properly 2022-03-31 17:00:38 +00:00
Ross Thompson
fb0eec0f76 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-03-31 11:39:41 -05:00
Ross Thompson
0942429b7f Forced to go back to hard coded preload. 2022-03-31 11:39:37 -05:00
Ross Thompson
a6d090a7c0 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-03-31 11:38:55 -05:00
Ross Thompson
dc48d84dd6 Modified clint to support all byte write sizes. 2022-03-31 11:31:52 -05:00
David Harris
93d6b2fb62 Added synthesis script for fma16 2022-03-31 00:51:33 +00:00
David Harris
f917ed7ed0 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2022-03-30 23:06:36 +00:00
bbracker
54b9745a75 big interrupts refactor 2022-03-30 13:22:41 -07:00
Ross Thompson
b2a77da96b Changed sram1p1rw to have the same type of bytewrite enables as bram. 2022-03-30 11:38:25 -05:00
David Harris
44f94173bf Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2022-03-30 16:26:27 +00:00
David Harris
1f10a96aa2 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2022-03-30 16:13:42 +00:00
Ross Thompson
3ac736e2d5 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-03-30 11:09:44 -05:00
Ross Thompson
370a075fa1 Partial cleanup of memories. 2022-03-30 11:09:21 -05:00
Ross Thompson
1993069986 Converted over to the blockram/sram memories. Now I just need to cleanup. But before the cleanup I wan to make sure the FPGA synthesizes with these changes and actually keeps the preload. 2022-03-30 11:04:15 -05:00
Ross Thompson
fc2b4453ec rv32gc and rv64gc now use the updated ram3.sv (will rename to ram.sv) which uses a vivado block ram compatible memory. Still need to update simpleram.sv to use this block ram compatible memory. 2022-03-29 23:48:19 -05:00
Ross Thompson
de2672231d Partial fix to allow byte write enables with fpga and still get a preload to work. 2022-03-29 19:12:29 -05:00
Kip Macsai-Goren
b252122d62 fixed arch bge test signature output location after update 2022-03-29 20:45:18 +00:00
David Harris
057ee56d7e Updated synthesis to look at fma16.v, other scripts to use fma16.v instead of fma16.sv 2022-03-29 19:16:41 +00:00
David Harris
049c55769a fpu compare simplification, minor cleanup 2022-03-29 17:11:28 +00:00
Kip Macsai-Goren
ad106e7130 made machine timer bit of IP registers unwriteable so it can only change when the interrupt actually changes 2022-03-29 02:26:42 +00:00
Kip Macsai-Goren
c32f5e9cee fixed signature location of the new periph with no compressed instructions 2022-03-29 02:15:17 +00:00
bbracker
46ffa4b079 fix typo that Madeleine found 2022-03-28 15:39:29 -07:00
Kip Macsai-Goren
dc9635b757 fixed double multiplication on vectored interrupts 2022-03-28 19:12:31 +00:00
Kip Macsai-Goren
2e68ab7bb4 added test config that doesn't use compressed instructions for privileged tests 2022-03-28 19:12:31 +00:00
Skylar Litz
29d1f64588 add AtemptedInstructionCount signal 2022-03-26 21:28:57 +00:00
Skylar Litz
bb8587e06f update to match new filesystem organization 2022-03-26 21:28:32 +00:00
Kip Macsai-Goren
8cde06b886 added basic trap tests that do not pass regression yet. updated signature adresses 2022-03-25 22:57:41 +00:00
Ross Thompson
7099259ff7 I think this version of csri matches what is required in the spec. ExtIntS should not be written into the SEIP register bit. 2022-03-25 13:10:31 -05:00
Ross Thompson
7a824eaae1 Found a way to remove a bus input into MMU. PAdr can be made into VAdr by selecting the faulting virtual address when writing the DTLB. 2022-03-24 23:47:28 -05:00
bbracker
b08066381a fix multiple-context PLIC checkpoint generation 2022-03-25 01:02:22 +00:00