cturek
d7571bb9b1
Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally
2022-12-16 03:41:39 +00:00
David Harris
b7abc0037e
Use FlushE to reset integer divider FSM
2022-12-15 11:00:54 -08:00
David Harris
4365c99b52
Refactored stalls and flushes, including FDIV flush with FlushE
2022-12-15 10:56:18 -08:00
David Harris
5b040b7935
Regression delete wkdir files to prevent spurious failures
2022-12-15 10:24:58 -08:00
David Harris
2457448e29
Renamed DIV_BITSPERCYCLE to IDIV_BITSPERCYCLE
2022-12-15 08:23:34 -08:00
Ross Thompson
fa19a111c6
Hazard cleanup.
2022-12-15 10:05:17 -06:00
Ross Thompson
e774dd2db9
Reworked the hazards to eliminate StallFCause. Flush and CSRWrites now flush F,D,E stages and set the correct PCNextF in the M stage.
2022-12-15 09:53:35 -06:00
Ross Thompson
b02550b05c
Merge branch 'main' into hazards
2022-12-15 08:44:59 -06:00
David Harris
33aca5d35e
Added IDIV_ON_FPU flag to control whether integer division uses FPU
2022-12-15 06:37:55 -08:00
David Harris
5f637ef4a7
Use FPU divider for integer division when F is supported
2022-12-14 17:03:13 -08:00
cturek
8829e627eb
Fixed BZero and initU/initUM muxes
2022-12-14 16:44:46 +00:00
Ross Thompson
09dcb56217
Signal renames to reflect figures.
2022-12-14 09:49:15 -06:00
Ross Thompson
a3ec829b80
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2022-12-14 09:34:34 -06:00
Ross Thompson
6da7849d27
Reduced complexity of linebytemask.
2022-12-14 09:34:29 -06:00
cturek
ed59736a4b
Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally
2022-12-14 15:13:44 +00:00
Ross Thompson
1ba1bed0b0
Broken dont' use.
2022-12-11 23:24:01 -06:00
Ross Thompson
0716aedbd5
Removed unused flushf.
2022-12-11 16:28:11 -06:00
Ross Thompson
115e9e7bb3
Renamed CPUBusy to GatedStallF in IFU.
2022-12-11 15:54:19 -06:00
Ross Thompson
ffc5bce0b6
Renamed CPUBusy in LSU.
2022-12-11 15:52:51 -06:00
Ross Thompson
c50a2bd8bf
Changed CPUBusy to Stall in ebu modules.
2022-12-11 15:51:35 -06:00
Ross Thompson
3ddf509f28
Renamed CPUBusy to Stall in cache.
2022-12-11 15:49:34 -06:00
Ross Thompson
4aadd87679
Moved CPUBusy out of HPTW.
2022-12-11 15:48:00 -06:00
cturek
f57211bb49
Fixed D sizing issues across fdivsqrt. Fixed preproc to accept either int or float inputs
2022-12-10 21:56:35 +00:00
Ross Thompson
d15cf5c65c
Added comments about why it is not possible to use FlushWay and VictimWay directly.
2022-12-09 17:07:35 -06:00
Ross Thompson
1463e9b1d4
Finished merge of kip and ross's ifu fix.
2022-12-09 16:52:22 -06:00
Ross Thompson
6f01ea12e8
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2022-12-09 16:42:16 -06:00
Ross Thompson
38adcb5b17
Minor simplification of cacheway way selection muxes.
2022-12-09 16:42:05 -06:00
Kip Macsai-Goren
f486a763d9
Addded fix for 32 bit periph test and added test to regression
2022-12-06 09:56:08 -08:00
Ross Thompson
033f844d09
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2022-12-06 10:38:14 -06:00
Ross Thompson
9ee2d84c7c
Fixed bug Kip found.
...
The no cache and no bus versions lacked assignment of CacheCommittedF in the IFU.
2022-12-06 10:37:45 -06:00
Kip Macsai-Goren
2dfa426e10
added passing GPIO test to 64 bit tests
2022-12-05 21:31:00 -08:00
Kip Macsai-Goren
c6c0ef05db
commented out periph test from wally32 periph so rv32ic doesn't hang
2022-12-05 20:23:16 -08:00
Kip Macsai-Goren
ae32e2a9ee
added passing tests to regression
2022-12-05 20:16:02 -08:00
Kip Macsai-Goren
282d06b45f
added -01 to all WALLY tests
2022-12-05 20:16:02 -08:00
Ross Thompson
9806babe9e
Renamed SelBusBuffer to SelFetchBuffer.
2022-12-05 17:51:13 -06:00
Ross Thompson
0fdbfb87eb
Removed commented code.
2022-12-05 17:21:56 -06:00
Ross Thompson
bcb927d172
Renamed VictimTag to just Tag. Tag is used for both the victim and flush tags.
2022-12-05 17:19:51 -06:00
Ross Thompson
2bcaacb179
Cache signal renames.
2022-12-04 16:09:09 -06:00
Ross Thompson
b84b709182
Optimized way selection logic.
2022-12-04 12:30:56 -06:00
Ross Thompson
74d5ccc2b1
Found possible optimization as the way selection is shared in cache, cacheway, and cachelru.
2022-12-04 01:20:51 -06:00
Ross Thompson
62e495c739
Moved selectedway mux into cacheway. It makes way more sense there.
2022-12-04 01:15:47 -06:00
Ross Thompson
e1ac736d43
Rename LineByteMux to FetchbufferbyteSel.
2022-12-04 01:00:04 -06:00
Ross Thompson
128b3d20e7
Updated riscv arch test removed misaligned1.
2022-12-04 00:18:10 +00:00
Ross Thompson
de99663b97
Revert "Changed weird D sizing. Better names in preproc. Finalized Int/Float input to divider."
...
This reverts commit 70b89e5214
2022-12-04 00:01:58 +00:00
cturek
70b89e5214
Changed weird D sizing. Better names in preproc. Finalized Int/Float input to divider.
2022-12-02 21:44:29 +00:00
cturek
1f32603c30
Added flops to preproc
2022-12-02 20:31:08 +00:00
David Harris
9395414df3
Renamed FPUStallD to FCvtIntStallD
2022-12-02 11:55:23 -08:00
David Harris
d64cd715f9
Renamed DivStartE to IFDivStartE
2022-12-02 11:30:49 -08:00
David Harris
9c1b7e53e4
FPU divider working with execute stage stall
2022-12-02 11:11:53 -08:00
David Harris
01028e7088
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2022-12-02 04:28:50 -08:00
David Harris
4c6003d9e2
update test list
2022-12-02 04:28:47 -08:00
Ross Thompson
33e4361de5
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2022-12-01 22:36:07 -06:00
David Harris
8afc054e74
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2022-12-01 16:27:36 -08:00
David Harris
ed39099405
reorder tests
2022-12-01 16:27:33 -08:00
Ross Thompson
1d9b5badee
Properly flush cacheLRU.
2022-12-01 17:32:58 -06:00
David Harris
f64c0589fe
FPU test list
2022-12-01 10:18:36 -08:00
Ross Thompson
da92cdccd0
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2022-12-01 11:47:54 -06:00
Ross Thompson
cb310bfb1d
Removed unused port on cacheway.
2022-12-01 11:47:48 -06:00
David Harris
558f0b655e
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2022-12-01 08:15:51 -08:00
David Harris
4e5f62a5c1
code cleanup
2022-12-01 08:15:48 -08:00
Ross Thompson
b0b16acaf5
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2022-11-30 17:19:04 -06:00
David Harris
aa26a97b36
signal sufixes in integer division
2022-11-30 15:15:37 -08:00
Ross Thompson
f9ffcf377b
Reverted the IROM/DTIM address range modelsim assignment.
2022-11-30 17:13:33 -06:00
Ross Thompson
bfd238a4fc
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2022-11-30 13:30:37 -06:00
Ross Thompson
813b2963fb
More optimization.
2022-11-30 11:26:48 -06:00
Ross Thompson
da7b13ba0a
Removed reset on dirty cache bits.
2022-11-30 11:04:37 -06:00
Ross Thompson
5e5cca6ae1
Turns out the merge of dirty and tag bits is complicated by the need to have byte write enables rather than bit write enables. Putting on hold for now.
2022-11-30 11:01:25 -06:00
Ross Thompson
ac3e02692b
Preparing to merge dirty and tag srams.
2022-11-30 10:40:48 -06:00
Ross Thompson
8692ccbafb
Intermediate commit. Replaced flip flop dirty bit array with sram.
2022-11-30 00:08:31 -06:00
cturek
e28a6901a9
div tests in sim-wally
2022-11-30 02:32:04 +00:00
Ross Thompson
e3577781b0
Optimization of cacheway.
2022-11-29 18:30:47 -06:00
Ross Thompson
1e2180ef98
Updated HPTW to route access faults generated by the HPTW to the original access type either instruction access fault, load access fault or store access fault.
2022-11-29 17:19:31 -06:00
Ross Thompson
5e550fe5e6
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2022-11-29 14:57:38 -06:00
Ross Thompson
9e4166407b
Fixed a bug with the replacement policy. It was updating the wrong set on load hits.
2022-11-29 14:51:09 -06:00
Ross Thompson
179d321683
Cleaned up the wavefile and added logic to linearly populate the LRU before all ways are filled.
2022-11-29 14:09:48 -06:00
Kip Macsai-Goren
66fcb2bffe
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2022-11-29 10:43:44 -08:00
Kip Macsai-Goren
26b4147f40
added failing satp invalid tests to regression
2022-11-29 10:43:38 -08:00
Ross Thompson
ed54959378
Renamed signals in the cache.
2022-11-29 10:52:40 -06:00
Ross Thompson
4e52755c9f
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2022-11-22 18:07:32 -06:00
cturek
7140642c93
Almost done with Int division
2022-11-22 22:22:59 +00:00
cturek
3fbccbf119
Updated testbench/wave for fdivsqrt new start signals
2022-11-22 22:22:26 +00:00
Ross Thompson
1736983557
Cleanup cacheLRU.
2022-11-22 14:59:01 -06:00
Ross Thompson
2ae7b555be
File name change for cachereplacement policy to cacheLRU
2022-11-20 22:35:02 -06:00
Ross Thompson
84679c0062
Signal name changes for LRU.
2022-11-20 22:31:36 -06:00
Ross Thompson
736a30afac
Missing a file. Last commit will fail.
2022-11-17 17:45:41 -06:00
Ross Thompson
a1f39a8186
Finally have the correct replacement policy implementation.
2022-11-17 17:36:37 -06:00
Ross Thompson
ac0f6ddb7b
I found the issue with the cache changes. FlushW is not asserted for all TrapM. Ecall and Ebreak don't flush the W stage. However the ifu's bus controllable must disable the BusRW for all traps.
2022-11-16 15:38:37 -06:00
Ross Thompson
9b2236b2a0
Progress on the cache replacement policy implementation.
2022-11-16 15:35:34 -06:00
Ross Thompson
cf964e30fb
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2022-11-16 12:42:29 -06:00
Ross Thompson
5f7b0b8a9b
Oups found a bug with my cache changes. I took TrapM out of the logic path for selecting the cache's address CAdr (previously RAdr) to improve the critical path. This is fine for the dcache because both the E and M stages are flushed. However for the ICache only F is flushed. PCNextF is valid and points to XTVEC so the cache must take NextAdr rather than PAdr as CAdr.
2022-11-16 12:36:58 -06:00
David Harris
bc3b783543
comment cleanup
2022-11-16 10:23:20 -08:00
David Harris
ddba68605e
Renamed DivBusy to FDivBusyE in FPU
2022-11-16 10:13:27 -08:00
David Harris
e008d663f4
Moved DivStartE to fdivsqrtfsm
2022-11-16 10:00:07 -08:00
Ross Thompson
900a326a23
Created improved cache replacement policy implementation. This version is generic and works for any number of ways. Not fully tested and is currently commented out.
2022-11-16 11:15:34 -06:00
cturek
6fe35ee0e3
Attempt to fix FPGA synth errors
2022-11-15 20:34:28 +00:00
cturek
1c49d4a1c2
Fixed lint errors in postprocessing
2022-11-15 20:31:23 +00:00
Ross Thompson
ec6517fadd
Fixed a bug with the hptw configuration not correctly avoiding UPDATE_PTE state.
2022-11-14 16:02:20 -06:00
Ross Thompson
f03d5d3ac8
Renamed Flush to FlushStage in the cache.
2022-11-14 14:11:05 -06:00
Ross Thompson
1bf838fa6b
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2022-11-14 13:48:56 -06:00
David Harris
895ee3d773
Removed comment about nonexistent possible bug
2022-11-14 09:56:33 -08:00
David Harris
cae3e00751
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2022-11-14 09:52:24 -08:00
David Harris
79d416537a
Removed comment about nonexistent possible bug
2022-11-14 09:52:21 -08:00
Ross Thompson
1a00e7bbee
Changed names of cache signals.
2022-11-13 21:36:12 -06:00
Ross Thompson
5800dfde60
Updated wave file.
2022-11-13 21:34:45 -06:00
cturek
0b2c8b9d46
Added majority of combinational logic
2022-11-14 00:06:38 +00:00
cturek
74f58b5d89
Added Quotient/Remainder calcs to normal termination
2022-11-13 23:44:34 +00:00
cturek
b3bfdbad18
Added flops for n and m, added B=0 signal
2022-11-13 23:02:43 +00:00
cturek
9c70ab917c
Added A<B signal to fdivsqrt, started postprocessing merge
2022-11-13 22:40:26 +00:00
Ross Thompson
a27b81ef90
Changed IMWriteDataM to IHWriteDataM.
2022-11-13 12:27:48 -06:00
Ross Thompson
3ac6514856
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
...
hazard was not a straight forward merge. I changed the way the LSU and IFU generate IFUStallF and LSUStallM. They need to be suppressed by TrapM now.
2022-11-13 12:25:22 -06:00
David Harris
0ce3cc393a
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2022-11-13 04:23:26 -08:00
David Harris
157f816cd3
HPTW cleanup
2022-11-13 04:23:23 -08:00
David Harris
0502b8ea4d
Comments about division hazards
2022-11-13 04:17:37 -08:00
Ross Thompson
90697ef888
Moved all remaining bus logic from the LSU into ahbcacheinterface.
2022-11-11 14:30:32 -06:00
cturek
ff410cd849
Added integer step counter to fsm
2022-11-11 00:23:25 +00:00
Ross Thompson
c2e3bad3f5
Fixed name change in hptw.
2022-11-10 16:13:31 -06:00
Ross Thompson
7311eca5ff
Wavefile update.
2022-11-10 15:48:06 -06:00
Ross Thompson
64b818c49a
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2022-11-10 15:46:25 -06:00
Ross Thompson
31d5eabd77
Renamed Word to Beat for ahbcacheinterface.
2022-11-09 17:52:50 -06:00
Ross Thompson
3653d6b3ed
Renamed CACHE_EVICT to CACHE_WRITEBACK.
2022-11-09 17:43:06 -06:00
cturek
d5c5450f8d
Reoredered tests for arch32m
2022-11-09 18:42:00 +00:00
cturek
e7c25f9562
Fixed asign and bsign
2022-11-09 18:41:26 +00:00
Ross Thompson
42c0a10d07
Removed TrapM from the LSU and IFU. TrapM is replaced with FlushW for both. (Don't like this for the IFU).
...
FlushW prevents writting the cache, dtim, and bus state. FlushW still gates HTRANS.
FlushW does not impact the mealy outputs of the cache and bus FSMs and hazard is updated to
not stall W if we get a trap.
2022-11-07 15:50:55 -06:00
David Harris
9b20bf341e
Moved lsuvirtmem muxes into hptw
2022-11-07 11:13:34 -08:00
Ross Thompson
922513c22f
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2022-11-07 09:10:51 -06:00
cturek
b137a95a35
propagated otfc swap to Rad2 and 4 qslc
2022-11-06 23:32:38 +00:00
Ross Thompson
8d57e488c8
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2022-11-06 17:22:25 -06:00
cturek
1e927df1a0
Added conditional OTFC swap for simplified int postprocessing
2022-11-06 23:09:09 +00:00
cturek
56b7bb3590
Finished Int Preprocessinggit add ../src/fpu/fdivsqrt/fdivsqrtpreproc.sv
2022-11-06 22:40:21 +00:00
cturek
ee048325cb
Added n and rightshiftx
2022-11-06 22:31:48 +00:00
cturek
67f2cb0595
p calculation
2022-11-06 22:24:21 +00:00
cturek
7567f388c2
Changed lzc names, started int/fp size merge in preproc
2022-11-06 22:21:35 +00:00
cturek
333da5c945
Added n, p, and m signals between fdivsqrt submodules. Added w64 and mdue to divsqrt testbench.
2022-11-06 22:08:18 +00:00
cturek
b893d9249d
Added new macros for int div preprocessing, added p, n, and rightshiftx logic
2022-11-06 21:53:48 +00:00
David Harris
c78643f4e4
Reorder embench tests to prevent crash
2022-11-04 15:21:51 -07:00
David Harris
e57083a0ef
HPTW cleanup
2022-11-04 15:21:09 -07:00
Ross Thompson
977ad1c33c
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2022-11-04 13:30:08 -05:00
cturek
39bf6a456e
renamed remOp to RemOp
2022-11-03 22:37:25 +00:00
cturek
890b26466f
Added rem/div operation to postprocessor
2022-11-02 17:49:40 +00:00
Ross Thompson
98d4929c57
Reduced complexity of logic supressing cache operations.
2022-11-01 15:23:24 -05:00
cturek
2a45787b37
Added buffered signals for int/fp
2022-10-28 21:47:24 +00:00
cturek
2ae0a9bb5d
Config Cleanup
2022-10-27 22:38:56 +00:00
Ross Thompson
03f68a4cf5
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2022-10-26 14:48:50 -05:00
Ross Thompson
36d9a00471
Fixed the uart transmit fifo overrun bug.
2022-10-26 14:48:09 -05:00
cturek
51fc4de0e1
small signal cleanup
2022-10-26 18:42:49 +00:00
cturek
544c142c4f
abs for int inputs
2022-10-26 16:18:05 +00:00
cturek
e401d12889
Added signed division to fdivsqrt
2022-10-26 16:13:41 +00:00
cturek
a8a89f8dfc
unbroke DIVb
2022-10-26 16:11:51 +00:00
cturek
8475de128b
Config cleanup
2022-10-25 21:04:09 +00:00
Jacob Pease
ec0cede2f2
Added PLIC signals for debugging on FPGA.
2022-10-25 13:57:09 -05:00
