bbracker
3f96ff0ac0
switch testbench-linux's interrupts from xcause to mip and improve warning messages
2021-09-22 12:33:11 -04:00
bbracker
ff5379fd95
fix regression
2021-09-15 17:30:59 -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
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
Ross Thompson
296da4f437
FPGA test bench and test program.
2021-09-12 20:41:54 -05:00
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
6550f38af9
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2021-09-08 12:47:03 -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
bbracker
da9a366d20
No longer forcing CSRReadValM because that can feedback to corrupt some CSRs
2021-09-06 22:59:54 -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
Ross Thompson
86fc632790
Moved data path logic from icacheCntrl to icache.
2021-08-26 10:58:19 -05:00
Ross Thompson
e9a1dc90f6
Removed generate around the dcache memories.
2021-08-25 13:27:26 -05:00
Ross Thompson
fe378f2692
Added function tracking to linux test bench.
2021-08-24 11:08:46 -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
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
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
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
Ross Thompson
9ff9c4dff9
Minor cleanup of the linux test bench.
2021-08-12 11:14:55 -05:00
Ross Thompson
cce0571925
Fixed another bug with the atomic instrucitons implemention in the dcache.
2021-08-08 22:50:31 -05:00
Ross Thompson
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
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
d8878581f4
Created new linux test bench and parsing scripts.
2021-07-29 20:26:50 -05:00
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
0e64b99dc0
testbench workaround for QEMU's SSTATUS XLEN bits
2021-07-23 14:00:44 -04:00
Kip Macsai-Goren
52faa22774
include SFENCE.VMA in legal instructions
2021-07-22 20:24:24 -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
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
Katherine Parry
01f0b4e5df
FDIV and FSQRT work
2021-07-21 14:08:14 -04:00
Katherine Parry
b9081e514c
FMA parameterized
2021-07-20 22:04:21 -04:00
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
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
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
bbracker
3b10ea9785
major fixes to CSR checking
2021-07-20 00:22:07 -04:00
bbracker
c1d63fe77c
MemRWM shouldn't factor into PCD checking
2021-07-19 18:03:30 -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
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
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
Katherine Parry
c9180f4ebd
FDIV and FSQRT passes when simulating in modelsim
2021-07-18 23:00:04 -04:00
bbracker
5e9dcb3f1c
linux testbench progress
2021-07-18 18:47:40 -04:00
Katherine Parry
60dabb9094
fdivsqrt inegrated, but not completley working
2021-07-18 14:03:37 -04:00
Ross Thompson
14220684b6
Fixed bug with rv32a/WALLY-LRSC test in imperas. Minor issue.
2021-07-17 21:02:24 -05:00
David Harris
8d348dacce
Started atomics
2021-07-17 21:11:41 -04:00
bbracker
82fc766819
swapped out linux testbench signal names
2021-07-17 14:48:12 -04:00
David Harris
87aa527de7
hptw: minor cleanup
2021-07-17 13:40:12 -04:00
David Harris
ef63e1ab52
hptw: factored pregen
2021-07-17 11:11:10 -04:00
David Harris
dac22d5016
Removed more unused signals from ahblite
2021-07-17 02:21:54 -04:00
Kip Macsai-Goren
d10fd25c33
included virtual memory tests in testbench
2021-07-16 17:57:24 -04:00
Ross Thompson
5e18a15a4c
Added guide for Ben to do linux conversion.
2021-07-16 15:04:30 -05:00
Ross Thompson
6521d2b468
Also changed the shadow ram's dcache copy widths.
...
Merge branch 'dcache' into main
2021-07-16 14:21:09 -05:00
Ross Thompson
e5d624c1fa
Found bug in the PMA such that invalid addresses were sent to the tim. Once addressing this issue the sv48 test fails early with a pma access fault.
2021-07-15 11:56:35 -05:00
Ross Thompson
fa26aec588
Merge branch 'main' into dcache
2021-07-15 11:55:20 -05:00
Ross Thompson
b9902b0560
Fixed how the dcache and page table walker stall cpu so that once a tlb miss occurs the CPU is always stalled until the walk is complete, the tlb updated, and the dcache fetched and hits.
2021-07-15 11:00:42 -05:00
Ross Thompson
704f4f724e
dcache STATE_CPU_BUSY needs to assert CommittedM. This is required to ensure a completed memory operation is not bound to an interrupt. ie. MEPC should not be PCM when committed.
2021-07-14 23:08:07 -05:00
Ross Thompson
ba1e1ec231
Finally have the ptw correctly walking through the dcache to update the itlb.
...
Still not working fully.
2021-07-14 22:26:07 -05:00
Katherine Parry
c74d26eea4
Fixed lint warning
2021-07-14 21:24:48 -04:00
Ross Thompson
2c946a282f
Fixed d cache not honoring StallW for uncache writes and reads.
2021-07-14 17:23:28 -05:00
Ross Thompson
e91501985c
Routed CommittedM and PendingInterruptM through the lsu arb.
2021-07-14 16:18:09 -05:00
Ross Thompson
3e57c899a2
Partially working changes to support uncached memory access. Not sure what CommitedM is.
2021-07-13 17:24:59 -05:00
Katherine Parry
efdec72df1
Fixed writting MStatus FS bits
2021-07-13 13:20:30 -04:00
Ross Thompson
3951eb56f5
Modularized the shadow memory to reduce performance hit.
2021-07-13 10:55:57 -05:00
Ross Thompson
e594eb540d
Got the shadow ram cache flush working.
2021-07-13 10:03:47 -05:00
Ross Thompson
49f6eec579
Team work on solving the dcache data inconsistency problem.
2021-07-12 23:46:32 -05:00
Ross Thompson
ecc9b5006e
Now updates the dtim with the dirty data in the dcache.
...
Simulation is showing issues. It lookslike the cache is not
evicting the correct data.
2021-07-12 15:13:27 -05:00
Ross Thompson
1cc258ade1
Progress towards the test bench flush.
2021-07-12 14:22:13 -05:00
Katherine Parry
36f59f3c99
Almost all convert instructions pass Imperas tests
2021-07-11 18:06:33 -04:00
bbracker
d3dd70e3e6
more completely uncomment MMU tests to make sim wally work
2021-07-06 14:33:52 -04:00
Kip Macsai-Goren
20cd0e208b
added new mmu tests to makefrag and commented out in the testbench
2021-07-05 10:54:30 -04:00
David Harris
5f91b339aa
Added F_SUPPORTED flag to disable floating point unit when not in MISA
2021-07-05 10:30:46 -04:00
David Harris
9645b023c9
Moved BOOTTIM to 0x1000-0x1FFF. Added logic to detect an access to undefined memory and assert HREADY so bus doesn't hang.
2021-07-04 01:19:38 -04:00
Ben Bracker
59b177beac
stop busybear from hanging
2021-07-02 17:22:09 -05:00
bbracker
13cf7c0934
linux testbench now ignores HWRITE glitches caused by flush glitches
2021-06-25 09:28:52 -04:00
bbracker
5b47da21ba
made testbench-linux's PCDwrong be FlushD
2021-06-25 08:15:19 -04:00
Katherine Parry
7e3483b283
FPU forwarding reworked pt.1
2021-06-24 18:39:18 -04:00
bbracker
13df69abdb
Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main
2021-06-24 01:42:41 -04:00
bbracker
be962cb1ff
overhauled linux testbench and spoofed MTTIME interrupt
2021-06-24 01:42:35 -04:00
Katherine Parry
8eed89616c
fpu clean-up
2021-06-23 16:42:40 -04:00
Katherine Parry
353a27f12f
rv64f FLW passes imperas tests
2021-06-22 16:36:16 -04:00
David Harris
7930c2ebb4
Commented out 100k tests to improve speed
2021-06-21 01:43:18 -04:00
David Harris
1ec90a5e1f
Reversed [0:...] with [...:0] in bus widths across the project
2021-06-21 01:17:08 -04:00
bbracker
bf3c2dc089
Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main
2021-06-20 22:29:40 -04:00
bbracker
3000c27acd
linux actually uses FPU now!
2021-06-20 22:29:21 -04:00
Katherine Parry
2b67f25683
all rv64f instructions except convert, divide, square root, and FLD pass
2021-06-20 20:24:09 -04:00
bbracker
2643130c41
read from MSTATUS workaround because QEMU has incorrect MSTATUS
2021-06-20 10:11:39 -04:00
bbracker
14ae87ff0a
testbench update b/c QEMU extends 32b CSRs to 64b
2021-06-20 09:24:19 -04:00
bbracker
c77aabdc6f
make buildroot ignore SSTATUS because QEMU did not originally log it
2021-06-20 05:31:24 -04:00
bbracker
918ff5093a
MSTATUS workaround
2021-06-20 04:48:09 -04:00
bbracker
069a79fafd
workaround for ignoring MTIME
2021-06-20 02:26:39 -04:00
bbracker
d62d9a7aac
make buildroot waves only turn on after a user-specified point
2021-06-20 00:39:30 -04:00
bbracker
8d242d73b5
fixed PCtext error by using blocking assignments
2021-06-18 17:37:40 -04:00
bbracker
03a45aeef1
restore graphical buildroot sim
2021-06-18 11:58:16 -04:00
bbracker
faae30c31c
remove unused testbench-busybear.sv
2021-06-18 08:15:19 -04:00
David Harris
35c74348a4
allow all size memory access in CLINT; added underscore to peripheral address symbols
2021-06-18 08:05:50 -04:00
David Harris
336936cc39
Cleaned up name of MTIME register in CSRC
2021-06-18 07:53:49 -04:00
bbracker
5b96f7fbd7
making linux waveforms more useful
2021-06-17 08:37:37 -04:00
bbracker
b459d0cc80
changed parsedCSRs2] to parsedCSRs
2021-06-17 05:18:14 -04:00
David Harris
01d6ca1e2a
Fixed lint WIDTH errors
2021-06-09 20:58:20 -04:00
David Harris
b613f46c2d
Resized BOOT TIM to 1 KB
2021-06-08 14:04:32 -04:00
bbracker
cc91c774a6
Ah big ole merge! Passes sim-wally-batch and linting, so should be fine
2021-06-08 12:41:25 -04:00
bbracker
e7e4105931
* GPIO comprehensive testing
...
* MEPC more aware if M stage has actually committed
* UART interrupt testing progress
* UART added read IIR side effect of lowering THRE intr
2021-06-08 12:32:46 -04:00
Kip Macsai-Goren
c96695b1b6
implemented simpler page mixers, cleaned up a bit
2021-06-07 18:32:34 -04:00
David Harris
2ae5ca19b5
Continued merge
2021-06-07 12:49:47 -04:00
David Harris
ff62000e2c
Second attept to commit refactoring config files
2021-06-07 12:37:46 -04:00
David Harris
dc0b19dfaa
Merge difficulties
2021-06-07 09:50:23 -04:00
David Harris
d5ec797ba4
Refactored configuration files and renamed testbench-busybear to testbench-linux
2021-06-07 09:46:52 -04:00
Katherine Parry
75a6097467
fixed lint warnings for fpu and lzd
2021-06-05 12:06:33 -04:00
Kip Macsai-Goren
22e8e06ac7
moved privilege dfinitions into wally-constants, upgraded relevant includes
2021-06-04 17:55:07 -04:00
Katherine Parry
fc65aedbd6
Double-precision FMA instructions
2021-06-04 14:00:11 -04:00
Kip Macsai-Goren
1ea9b94cf1
added tests for SV48 and translation off with vmem
2021-06-03 14:28:52 -04:00
James E. Stine
2eeb12c674
Updates to muldiv.sv for 32-bit div/rem
2021-06-01 15:31:07 -04:00
Ross Thompson
89ad4477e4
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2021-06-01 11:33:12 -05:00
Ross Thompson
857f59ab5c
Now have global history working correctly.
2021-06-01 10:57:43 -05:00
James E. Stine
ddbdd0d5a2
Modify muldiv.sv to handle W instructions for 64-bits
2021-05-31 23:27:42 -04:00
bbracker
39ae743543
turns out I should not have tried renaming FStallD to FPUStallD because that name was already used! All the same it does feel weird to have two such signals floating around \(ah pun!\)
2021-05-28 23:11:37 -04:00
Katherine Parry
778ba6bbf5
classify unit created and passes imperas tests
2021-05-27 18:53:55 -04:00
Katherine Parry
1459d840ed
All compare instructions pass imperas tests
2021-05-27 15:23:28 -04:00
Katherine Parry
309e6c3dc1
FADD and FSUB imperas tests pass
2021-05-26 12:33:33 -04:00
Kip Macsai-Goren
8ae43a15d4
partially complete MSTATUS test of sd, xs, fs, mie, mpp, mpie, sie, spie bitfields
2021-05-24 20:59:26 -04:00
James E. Stine
295263e122
Mod for DIV/REM instruction and update to div.sv unit
2021-05-24 19:29:13 -05:00
Ross Thompson
c5310e85c1
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2021-05-24 14:28:41 -05:00
Katherine Parry
90d5fdba04
FMV.X.D imperas test passes
2021-05-24 14:44:30 -04:00
Ross Thompson
8bf411c640
Updated branch predictor tests/benchmarks.
2021-05-24 11:13:33 -05:00
Katherine Parry
70968a4ec3
FSD and FLD imperas tests pass
2021-05-23 18:33:14 -04:00
bbracker
846553ac7d
improved PLIC test organization
2021-05-21 15:13:02 -04:00
James E. Stine
e70136ec78
Minor testbench updates to rv64icfd
2021-05-21 09:41:21 -05:00
James E. Stine
23769e36a5
Update to testbench-imperase for rv64icfd
2021-05-21 09:28:44 -05:00
James E. Stine
fed3b30557
Update to FLD/FSD testbench
2021-05-21 09:26:55 -05:00
