Ross Thompson
cef4b6399d
Switched to using an always block for lsu stall logic. This avoids the problematic x propagation.
2021-12-19 18:16:08 -06:00
Ross Thompson
814bcec7b7
Implemented what I think is the last required change for the lsu state machine.
2021-12-19 17:57:12 -06:00
Ross Thompson
54fd8678b0
Created hack to get around imperas64mmu unknown (value = x) bug.
2021-12-19 17:53:13 -06:00
Ross Thompson
13f0e9bafa
Fixed bug where icache did not replay PCF on itlb miss.
2021-12-19 17:01:13 -06:00
Ross Thompson
04d0b85f96
Fixed bug most of the bugs related to the dcache changes, but the mmu tests don't pass.
2021-12-19 16:12:31 -06:00
David Harris
5e1c3e322b
Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main
2021-12-19 13:53:53 -08:00
David Harris
691c1c0dd0
ALUControl cleanup
2021-12-19 13:53:45 -08:00
Katherine Parry
ece9e9df84
fixed some small errors in FMA
2021-12-19 13:51:46 -08:00
Ross Thompson
202203904c
Corrected the LSU's fsm for stalling CPU. Removed state from hptw fsm.
2021-12-19 15:10:33 -06:00
Ross Thompson
9adcf86a40
Modified the icache memory to read using the virtual (non physical) address in the PCNextF stage.
...
This allows recovering from an ITLBMiss to be 1 cycle after and simplifies the hptw slightly.
2021-12-19 14:57:42 -06:00
Ross Thompson
0257c08641
Renamed MemAdrM to IEUAdrM. This will free the name MemAdrm for use in the DCache.
2021-12-19 14:00:30 -06:00
Ross Thompson
620f4a58d4
Adds FSM to LSU which will handle the interactions between the hptw and dcache. This will dramatically simplify the dcache by removing all walker states.
2021-12-19 13:55:57 -06:00
Ross Thompson
fdf493bd47
minro change. comments about needed changes in dcache.
2021-12-19 13:53:02 -06:00
David Harris
c04c56dae1
Renamed zero to eq in flag generation
2021-12-19 11:49:15 -08:00
David Harris
e5d2d7a3fd
Controller fix
2021-12-18 22:08:23 -08:00
David Harris
8a597390e0
Renamed RD1D to R1D, etc.
2021-12-18 21:26:00 -08:00
David Harris
7fb4213751
Simplified shifter right input
2021-12-18 10:25:40 -08:00
Ross Thompson
f601b3ae53
Merge branch 'tlb_fixes' into main
2021-12-18 12:24:17 -06:00
David Harris
d97d34ee32
Simplified Shifter Right input
2021-12-18 10:21:17 -08:00
David Harris
852c521328
Shared ALU mux input for shifts
2021-12-18 10:08:52 -08:00
David Harris
a7d7f852a6
Factored out common parts of shifter
2021-12-18 10:01:12 -08:00
David Harris
7868c0da55
Cleaning shifter
2021-12-18 09:43:09 -08:00
David Harris
b453454b24
Moved W64 truncation after result mux
2021-12-18 09:27:25 -08:00
David Harris
2a5a7eff82
Forwarding logic factoring
2021-12-18 05:40:38 -08:00
David Harris
1212e21eba
Simplified FWriteInt interfaces by merging into RegWrite
2021-12-18 05:36:32 -08:00
Ross Thompson
2f86e84843
Merge remote-tracking branch 'origin/tlb_fixes' into main
2021-12-17 14:40:29 -06:00
Ross Thompson
79ec4161b6
Added more debugging code for FPGA.
2021-12-17 14:40:25 -06:00
Ross Thompson
5264577dcf
Possible fix for icache deadlock interaction with hptw.
2021-12-17 14:38:25 -06:00
David Harris
3a9071e509
Renamed MemAdrE to IEUAdrE and moved the MemAdrM flop from IEU to LSU to reduce wires crossing hierarchies
2021-12-15 12:10:45 -08:00
David Harris
f0059b7b3a
IEU cleanup:
2021-12-15 11:38:26 -08:00
Ross Thompson
9f798250ea
Oups missed files in the last commit.
2021-12-15 10:25:08 -06:00
David Harris
f4957fdac1
Renamed dtim->ram and boottim ->bootrom
2021-12-14 13:43:06 -08:00
Ross Thompson
45b38ea9fe
Comments for dcache and icache refactoring.
2021-12-14 14:46:29 -06:00
David Harris
eb33021f40
Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main
2021-12-14 11:15:58 -08:00
David Harris
dd0d4c0add
ALU and datapath cleanup
2021-12-14 11:15:47 -08:00
Ross Thompson
f061a26411
Cleaned up fpga synthesis script.
2021-12-13 18:26:54 -06:00
Ross Thompson
b9c8b808ea
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2021-12-13 17:16:20 -06:00
Ross Thompson
7d00649b61
Formating changes to cache fsms.
2021-12-13 17:16:13 -06:00
Ross Thompson
5361f69639
Fixed some typos in the dcache ptw interaction documentation.
2021-12-13 15:47:20 -06:00
David Harris
74cf0eb96a
Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main
2021-12-13 07:57:49 -08:00
David Harris
1ca949c0bb
Simplified ALU and source multiplexers pass tests
2021-12-13 07:57:38 -08:00
kwan
5ede8126fd
priviledge .* removed, passed regression
2021-12-13 00:34:43 -08:00
kwan
b05bc3c19e
test
2021-12-13 00:31:51 -08:00
kwan
83dae9d774
priviledge .* fixed, passed local regression
2021-12-13 00:22:01 -08:00
Ross Thompson
8e39034dbd
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2021-12-12 17:33:29 -06:00
Ross Thompson
2f282e5570
Revert "Privilige .*s removed"
...
This reverts commit 471f267987
2021-12-12 17:31:57 -06:00
Ross Thompson
fdbb7b6ef3
Revert "Priviledged .* removed"
...
This reverts commit 96ac298596
2021-12-12 17:31:39 -06:00
Ross Thompson
547093b705
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2021-12-12 17:21:51 -06:00
Ross Thompson
bb79f70a63
Modified FPGA to add additional signals to ILA. Created advanced trigger for ILA using vivado's tsm language.
2021-12-12 17:21:44 -06:00
Ross Thompson
b88ec949cf
Added proper credit to Richard Davis, the author of the original sd card reader.
2021-12-12 15:05:50 -06:00
kwan
96ac298596
Priviledged .* removed
2021-12-12 09:55:45 -08:00
kwan
471f267987
Privilige .*s removed
2021-12-12 09:54:14 -08:00
David Harris
d3c3ab3e85
Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main
2021-12-12 05:49:31 -08:00
Ross Thompson
cd59809e42
Fixed numerous errors in the preformance counter updates.
...
Fixed dcache reporting of access and misses.
Added performance counter tracking to coremark.
2021-12-09 11:44:12 -06:00
slmnemo
3ff994f50d
Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main
...
help
2021-12-08 14:09:58 -08:00
slmnemo
094f45e28b
Removed .* from /wally-pipelined/src/uncore/uart.sv
2021-12-08 14:02:53 -08:00
Ross Thompson
a55018b67a
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2021-12-08 15:50:43 -06:00
Ross Thompson
3bdda9687a
Fixed some issues with the SDC having a different counter. When this is copied into synthesis the file names where the same and it gave a conflict.
...
Remove preload from dtim.
2021-12-08 15:50:15 -06:00
David Harris
9e2c3bef3c
Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main
2021-12-08 13:48:49 -08:00
David Harris
0b63c1cede
Refactored IEU/ALU logic
2021-12-08 13:48:04 -08:00
Noah Limpert
e97dd080a0
updated fcmp.sv instantiation to remove x*'s
2021-12-08 13:34:33 -08:00
David Harris
a174c8b4d7
Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main
2021-12-08 12:33:59 -08:00
David Harris
5d4014d351
Refactoring ALU and datapath muxes
2021-12-08 12:33:53 -08:00
slmnemo
d58f318d39
Removed .*s from wally-pipelined/src/uncore/uncore.sv
2021-12-08 01:03:02 -08:00
slmnemo
52b4802600
Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main
2021-12-08 00:26:13 -08:00
Noah Limpert
feb21d1c4a
removed .* instantiation from ieu.sv and datapth.sv in ieu folder
2021-12-08 00:24:27 -08:00
slmnemo
acacd13ffc
Removed .* from mmu instance inside lsu.sv.
2021-12-08 00:15:30 -08:00
Katherine Parry
d0e708f239
FMA uses one LOA
2021-12-07 14:15:43 -08:00
bbracker
d459e35645
undo intentionally breaking commit
2021-12-07 13:43:47 -08:00
bbracker
3379b74bb2
intentionally breaking commit
2021-12-07 13:27:34 -08:00
bbracker
cf61187273
undo intentionally breaking commit
2021-12-07 13:27:06 -08:00
bbracker
69f025a642
intentionally breaking commit
2021-12-07 13:23:19 -08:00
Ross Thompson
8bb3d51aad
Added generate around the dtim preload.
...
Added readme to explain FPGA.
2021-12-07 13:12:47 -06:00
Ross Thompson
3d829dbbd3
Fixed two issues.
...
First the xci files already include the xdc constraints for each IP block. There is no need to include the xdc files explicitly.
Second the bidir buffer for the sd card was connected backwards.
2021-12-07 12:15:50 -06:00
Ross Thompson
517cae796c
Fixed more constraint issues in fpga.
...
Added back in the ILA.
Design does not work yet. Stil having issues with order of automatic
clock and I/O constraint ordering.
Added back in the preload for the boottim.
2021-12-05 15:14:18 -06:00
Ross Thompson
74ffb48c0a
Mostly integrated FPGA flow into main branch. Not all tests passing yet.
2021-12-02 18:00:32 -06:00
Ross Thompson
b7e8c74e61
Merge branch 'fpga' into main
2021-12-02 14:28:10 -06:00
kwan
e4f214090d
.* resolved in ifu.sv
2021-12-02 10:32:35 -08:00
kwan
2a77bc8053
.* in ifu/ifu.sv eliminated
2021-12-02 09:45:55 -08:00
Ross Thompson
d7df9c1054
Fixed uart for FPGA config after merge. This still needs some work.
2021-11-29 16:07:54 -06:00
Ross Thompson
8e4eacc18e
Merge branch 'main' into fpga
2021-11-29 10:10:37 -06:00
Ross Thompson
e43aa6ead4
Merge branch 'main' into fpga
2021-11-29 10:06:53 -06:00
Noah Limpert
cb77c1db3a
updated fpu instantion on wallypiplinedhart to remove .*, updated spacing as well
2021-11-24 23:22:04 -08:00
Noah Limpert
e66fdd3f80
replaced .* instation of priv module on wallypiplinedhart
2021-11-24 22:58:59 -08:00
Noah Limpert
0cd31bfc1f
Made abhlite instation on wallypipehart more clear, updated spacing for consistency
2021-11-24 22:48:01 -08:00
Noah Limpert
8a64510ee4
updated module instation of LSU on wallypiplinedhard
2021-11-24 22:09:39 -08:00
Ross Thompson
b909375289
Missed another change to uart.
2021-11-23 10:20:47 -06:00
Ross Thompson
fe00729d7c
Fixed syntax error which modelsim did not detect in my changes for making uart work with qemu's simulation.
2021-11-23 10:00:32 -06:00
Ross Thompson
e309017ec4
Added QEMU hack for initial LCR value in uart.
2021-11-22 15:23:19 -06:00
Ross Thompson
e568068c78
Hack added to uart so QEMU simulation can work with an ultra fast baud rate relative to the clock speed.
2021-11-22 15:20:54 -06:00
Ross Thompson
fcd14828d4
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2021-11-22 11:30:14 -06:00
bbracker
d90d708cf9
activate STVAL for buildroot
2021-11-21 10:40:28 -08:00
Ross Thompson
c661bb4894
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2021-11-20 22:44:45 -06:00
Ross Thompson
baa98e7015
Reversed bit order in uart.
2021-11-20 22:43:05 -06:00
Ross Thompson
2f85ac7f38
Fixed a very complex interaction between interrupts, the icache, dcache, and hptw.
...
If an interrupt occurred at the start of an ITLB miss or DTLB miss the page table
walk should be aborted before starting.
2021-11-20 22:35:47 -06:00
slmnemo
870549c01a
Removed .* from hazard hzu(.*).
2021-11-17 14:21:23 -08:00
slmnemo
a98dcd11ee
Removed .* from hazard hzu(.*) in wallypipelinedhart.sv.
2021-11-17 14:08:08 -08:00
slmnemo
fed613dc72
Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main
2021-11-17 13:38:51 -08:00
slmnemo
f4380faa4e
removed .* from muldiv.sv (REAL)
2021-11-17 13:37:50 -08:00
Noah Limpert
0ccc7d5fe8
ieu variable naming changed for clarity
2021-11-17 13:24:28 -08:00
