David Harris
48e33c79a9
Reduced cycle count for DIVW/DIVUW by two
2021-10-03 09:42:22 -04:00
David Harris
2ae51d1852
Parameterized number of bits per cycle for integer division
2021-10-03 01:10:15 -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"
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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
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
7117c0493c
condense testbench code; debug_level of 0 means don't check at all
2021-09-27 03:03:11 -04:00
bbracker
3f96ff0ac0
switch testbench-linux's interrupts from xcause to mip and improve warning messages
2021-09-22 12:33:11 -04:00
bbracker
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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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
