David Harris
c306884e2c
Adding custom Wally test infrastructure
2021-11-01 08:48:46 -07:00
bbracker
38d26e857b
fix buildroot graphical sim
2021-10-31 18:33:43 -07:00
David Harris
717f9d48e9
tesgen cleanup, added riscv-arch-test D tests
2021-10-29 22:31:48 -07:00
David Harris
0421b7af56
Changes for floating point sims
2021-10-27 10:37:35 -07:00
David Harris
f793dd7a5e
removed unused signal from wave.do
2021-10-26 09:02:22 -07:00
bbracker
f39a509b5b
adapt testbench linux to use reset_ext
2021-10-25 13:26:44 -07:00
Ross Thompson
2f4ee26b60
Fixed issue with dtim (fpga) external abhlite select not triggering.
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Setup the bootloader (bios.s) to copy 127MB and blink LEDs for 5 seconds with 1 second period.
2021-10-25 14:51:54 -05:00
bbracker
2c9c9328a9
Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main
2021-10-25 12:25:37 -07:00
bbracker
c61cbf9618
change CHECKPOINT to be a parameter (not a macro) so that do scripts can control it; clean up checkpoint initialization macros
2021-10-25 12:25:32 -07:00
Ross Thompson
f7583d0e0d
Updated uncore to use sdc.
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Fixed bug with fence instruction not correctly clearing dirty bits in d cache.
2021-10-25 14:07:44 -05:00
David Harris
47124f36c8
Added synchronizer to reset
2021-10-25 10:05:41 -07:00
bbracker
9423b90780
switch linux graphical sim over to Ross's waves
2021-10-24 18:39:23 -07:00
bbracker
4544d28bc9
or actually needed to reduce expectations of buildroot
2021-10-24 06:59:34 -07:00
bbracker
23bff55c6e
increase regression's expectations of buildroot
2021-10-24 06:50:22 -07:00
bbracker
366cb12a13
buildroot do scripts now compile flops
2021-10-23 23:14:59 -07:00
bbracker
3b63dde570
Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main
2021-10-23 13:17:37 -07:00
bbracker
d6fb441666
add option for regression to do a partial execution of buildroot
2021-10-23 13:17:30 -07:00
David Harris
67f3fc9962
wrapping up lint cleanup; many unused signals removed
2021-10-23 12:15:14 -07:00
David Harris
bf3eb7b814
update scripts for handling src/*/* subdirectories
2021-10-23 08:54:29 -07:00
David Harris
8b854bb1c2
Cleaned up LINT erors
2021-10-23 06:28:49 -07:00
David Harris
3407b63c8a
Added -lint flag to vsim. Cleaned some lint errors. Moved lint-wally to regression directory for convenience.
2021-10-23 06:15:26 -07:00
Ross Thompson
09dc3e1143
Merge branch 'main' into fpga
2021-10-20 16:24:55 -05:00
Ross Thompson
77a89c30de
Fixed bug with the external memory region selection.
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Updated bios program to copy just 127MB to dram.
2021-10-19 11:23:23 -05:00
James E. Stine
eb64a7f0c9
Update to fpdivsqrt to go on posedge as it should. Also an update to
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individual regression test for TestFloat (still needs some tweaking)
2021-10-13 17:14:42 -05:00
bbracker
886a650da4
change infrastructure to expect only 6.3 million from buildroot
2021-10-12 10:41:15 -07:00
Ross Thompson
5fdac9fa3b
Merge branch 'main' into fpga
2021-10-11 18:17:58 -05:00
Ross Thompson
3d9d4cc03f
Partially working sd card reader.
2021-10-11 10:23:45 -05:00
David Harris
a8ce4568aa
Divider FSM simplification
2021-10-10 22:24:14 -07:00
David Harris
a077735ecc
Major reorganization of regression and simulation and testbenches
2021-10-10 15:07:51 -07:00
bbracker
50e5b0a8f4
Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main
2021-10-10 13:12:44 -07:00
bbracker
efe9f5d857
make regression expect what buildroot is actually able to reach
2021-10-10 13:12:36 -07:00
David Harris
bfe8bf3855
Removed negedge flops from divider
2021-10-10 10:41:13 -07:00
bbracker
64a3043a88
update wave-do
2021-10-07 19:16:52 -04:00
James E. Stine
739e17ddac
Add generic wave command file
2021-10-06 13:17:49 -05:00
James E. Stine
658dcc8c1b
Update to testbench for FP stuff
2021-10-06 13:16:38 -05:00
Ross Thompson
e4e353c186
updated fpga wavefile.
2021-10-03 12:14:22 -05:00
Ross Thompson
4c81d3453e
Added fpga wave file.
2021-10-03 11:56:11 -05:00
David Harris
9809e57d0c
Replacing XE and DE with SrcAE and SrcBE in divider
2021-10-03 11:11:53 -04:00
David Harris
8f36297569
Added suffixes to more divider signals
2021-10-03 00:32:58 -04:00
David Harris
24bb3f4baf
Added more pipeline stage suffixes to divider
2021-10-02 22:54:01 -04:00
David Harris
fe69513bb7
Partial divider cleanup
2021-10-02 20:55:37 -04:00
David Harris
d4437b842a
Divider code cleanup
2021-10-02 10:13:49 -04:00
David Harris
0e0e204d3d
Moved negating divider otuput to M stage
2021-10-02 10:03:02 -04:00
Ross Thompson
ec4a07de64
Movied tristate to test bench level.
2021-09-30 11:27:42 -05:00
Ross Thompson
db18aac9af
Partially sd card read on fpga.
2021-09-30 11:23:09 -05:00
David Harris
e1ad732178
SRT Division unsigned passing Imperas tests
2021-09-30 12:17:24 -04:00
Ross Thompson
99070127d8
Added debugging directives to system verilog.
2021-09-27 13:57:46 -05:00
Ross Thompson
5bdd6a9d0c
Almost done writting driver for flash card reader.
2021-09-25 19:05:07 -05:00
Ross Thompson
3a15cc7872
We now have a rough sdc read routine.
2021-09-25 17:51:38 -05:00
Ross Thompson
dd9fe60b28
Write of the SDC address register is correct. The command register is not yet working.
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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
5663522a3f
Now have software interacting with the initialization and settting the address register.
2021-09-24 18:30:26 -05:00
Ross Thompson
232d4a554f
Have program which checks for sdc init and issues read, but read done is
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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
af28cfb70c
Added SDC defines to each config mode.
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Added sd_top which is the sd card reader.
2021-09-24 12:24:30 -05:00
Ross Thompson
78028947bf
Updated Imperas test bench to work with the SDC reader.
2021-09-24 11:22:54 -05:00
Ross Thompson
d09b381183
Fixed the amo on dcache miss cpu stall issue.
2021-09-17 22:15:03 -05:00
Ross Thompson
99d675b872
Finished adding the d cache flush. Required ensuring the write data, address, and size are
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correct when transmitting to AHBLite interface.
2021-09-17 13:03:04 -05:00
Ross Thompson
b92070a67a
Updated Dcache to fully support flush. This appears to work.
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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
d4398c23fb
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
eb7b5f1d63
Added invalidate to icache.
2021-09-16 16:15:54 -05:00
bbracker
92ddc9b20a
Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main
2021-09-15 17:31:11 -04:00
bbracker
b1be8f4858
fix regression
2021-09-15 17:30:59 -04:00
David Harris
72c1cc33f5
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
David Harris
654f3d1940
Fixed MTVAL contents during breakpoint. Now all riscv-arch-test vectors pass in rv32 and rv64
2021-09-13 12:40:40 -04:00
David Harris
1847198da9
Cleaned up wally-arch test scripts
2021-09-13 00:02:32 -04:00
David Harris
cb624fe679
Lint cleaning, riscv-arch-test testing
2021-09-09 11:05:12 -04:00
David Harris
a31828e925
Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main
2021-09-08 16:00:12 -04:00
David Harris
30e2ec3987
Added testbench-arch for riscv-arch-test suite
2021-09-08 15:59:40 -04:00
Ross Thompson
6606eea27e
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2021-09-08 12:47:03 -05:00
Ross Thompson
5bc90ef32f
Slight modification to wave file.
2021-09-08 10:40:46 -05:00
bbracker
5e9a39e755
fixed bug where M mode was sensitive to S mode traps
2021-09-07 19:14:39 -04:00
bbracker
28fed18421
No longer forcing CSRReadValM because that can feedback to corrupt some CSRs
2021-09-06 22:59:54 -04:00
Ross Thompson
00f50184d8
Changed name of memory in icache.
2021-09-06 20:54:52 -05:00
bbracker
58d478eb23
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
Ross Thompson
5c2deab4e4
Partial multiway set associative icache.
2021-08-30 10:49:24 -05:00
Ross Thompson
4b0344898b
Fixed bugs I introduced to the icache.
2021-08-27 15:00:40 -05:00
Ross Thompson
de9e234ffa
Modified icache to no longer need StallF in the PCMux logic. Instead this is handled in the icachefsm.
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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
cbb47956cb
Swapped out the icachemem for cacheway. cacheway is modified to optionally support dirty bits.
2021-08-26 15:43:02 -05:00
Ross Thompson
642efbb563
Converted the icache type from logic to state type.
2021-08-26 10:41:42 -05:00
Ross Thompson
d2b3b7345e
Moved dcache fsm to separate module.
2021-08-25 21:37:10 -05:00
Ross Thompson
7be0a73db1
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.
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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
c48556836b
Removed generate around the dcache memories.
2021-08-25 13:27:26 -05:00
Ross Thompson
699053bab0
Updated linux test bench documenation and scripts.
2021-08-25 10:54:47 -05:00
Ross Thompson
b7972eafeb
Added function tracking to linux test bench.
2021-08-24 11:08:46 -05:00
Ross Thompson
c0667f30bb
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
4eca94268c
Added logic to linux test bench to not stop simulation on csr write faults.
2021-08-15 11:13:32 -05:00
Ross Thompson
15085448d7
Updated linux-wave.do to have cursors at the timer interrupt problem.
2021-08-13 17:29:37 -05:00
Ross Thompson
4f3f26c5cb
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
a1c26a16d6
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
467e24c05c
Fixed another bug with the atomic instrucitons implemention in the dcache.
2021-08-08 22:50:31 -05:00
Ross Thompson
20a04d8cee
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
25533bdc49
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
839822d3b1
Now past the CLINT issues.
2021-08-06 16:16:39 -05:00
Ross Thompson
e1319a2fbe
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
d430659983
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
cd8a66353c
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
ef66cdeecf
Moved the test bench modules to a common directory.
2021-07-30 14:16:14 -05:00
Ross Thompson
32ec457e09
Removed the hardware page table walker fault state from the icache so that the icache will only unstall CPU for 1 cycle.
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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
Ross Thompson
007812dbdc
Moved the ReadDataW register into the datapath.
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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
89e22bc5e8
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2021-07-22 10:38:24 -05:00
Ross Thompson
e907d57340
Tested all numbers of ways for dcache 1, 2, 4, and 8.
2021-07-22 10:38:07 -05:00
