Ross Thompson
230888db8b
Fixed bug #47 discovered by Lee Moore.
...
ECALL and EBREAK do not commit their results.
2023-02-02 08:52:06 -06:00
Ross Thompson
d62a72a76f
Merge branch 'main' of https://github.com/openhwgroup/cvw into main
2023-02-02 08:48:19 -06:00
James Stine
6ce80b6b8a
Update ram2 and other memories and associated wrappers
2023-02-01 17:03:48 -06:00
Ross Thompson
0035579553
Minor branch predictor bug fix.
2023-02-01 10:59:38 -06:00
Ross Thompson
2a5b6408f2
Removed unused signal.
2023-02-01 10:27:58 -06:00
David Harris
0280942563
Fixed merge conflict to get synthesis working again
2023-02-01 04:43:57 -08:00
Ross Thompson
c3e3afe398
Minor change to btb.
2023-02-01 00:24:54 -06:00
Madeleine Masser-Frye
ad6d7eb5e2
added memories (not tested)
2023-02-01 06:08:27 +00:00
Ross Thompson
8a6eaa23cc
Minor optimization to btb.
2023-01-31 22:03:51 -06:00
David Harris
c666015c56
Merge branch 'main' of https://github.com/openhwgroup/cvw into dev
2023-01-31 14:40:19 -08:00
Ross Thompson
81b280576f
Updates to RAS.
2023-01-31 15:17:32 -06:00
Ross Thompson
fc2e3fed91
Simplified RAS.
2023-01-31 14:54:05 -06:00
Ross Thompson
a89f9dc92c
RAS file name was spelled wrong.
2023-01-31 14:35:05 -06:00
Ross Thompson
026071e247
Merge branch 'imperas'
2023-01-31 12:46:22 -06:00
Ross Thompson
5a770f148c
Minor bug fix in gshare.
2023-01-31 10:45:32 -06:00
Ross Thompson
ad0a0f0d51
Renamed signals in RAS.
2023-01-31 10:44:11 -06:00
Ross Thompson
0e3c77bed3
Found small bug in gshare.
2023-01-31 00:17:49 -06:00
Ross Thompson
8feac6d242
Parameterized testbench branch predictor preload.
2023-01-31 00:08:11 -06:00
Ross Thompson
238c4d14a9
More branch predictor cleanup.
2023-01-30 23:55:52 -06:00
Ross Thompson
80f50f10d3
Improved signal names.
2023-01-30 23:51:04 -06:00
Ross Thompson
a15889e0aa
Major cleanup of branch predictor.
2023-01-30 23:37:34 -06:00
Ross Thompson
42828e6ec4
Simplified gshare.
2023-01-30 19:27:18 -06:00
Ross Thompson
4cbefd9834
Minor gshare optimization.
2023-01-30 18:13:12 -06:00
David Harris
1121ff0fa7
Restored top-level modules without import statements
2023-01-30 12:54:40 -08:00
David Harris
4a4be04530
Moved out version of wally using package because synthesis isn't working yet
2023-01-30 12:48:52 -08:00
David Harris
a2f66313ea
Merge branch 'main' of https://github.com/openhwgroup/cvw into dev
2023-01-30 11:00:51 -08:00
Ross Thompson
cc48cdc97b
Imperas found a real bug in virtual memory.
...
If the instruction address spilled across two pages and the second page misses the TLB,
the HPTW received a tlb miss at the address of the first page rather than the second.
After the walk the TLB was updated with the PTE from the first page at the address of the
second page.
Example bug
Instruction PCF = 0x2ffe
First page in 0x2ffe and second page in 0x3000.
The second page misses the TLB and generates HPTW request at 0x2ffe rather than 0x3000.
TLB is updated with PTE from 0x2ffe at 0x3000.
2023-01-30 11:47:51 -06:00
Ross Thompson
6040a45698
optimized branch predictor by removing unnecessary registers.
2023-01-29 22:39:37 -06:00
Ross Thompson
392716a608
Updated global history branch predictcor with the gshare improvements.
2023-01-29 16:26:44 -06:00
David Harris
234860d4e5
Merged PR#37 branch predictor
2023-01-29 14:25:28 -08:00
David Harris
9d44c59a38
Removed unused TESTSBP parameter
2023-01-29 14:19:24 -08:00
Ross Thompson
a9a7054e2f
Merge branch 'main' of https://github.com/openhwgroup/cvw
...
This merges the branch predictor improvements into the main repo.
2023-01-29 15:24:20 -06:00
Ross Thompson
d6ae1156d0
gshare cleanup.
2023-01-29 15:07:45 -06:00
Ross Thompson
ef874f3409
Gshare cleanup.
2023-01-29 15:06:35 -06:00
Ross Thompson
74b4f78099
Found bug in gshare.
2023-01-29 15:03:25 -06:00
David Harris
d1afc2f14a
Fixed configuration of ram to use macro when depth is corret
2023-01-29 11:35:17 -08:00
Ross Thompson
1044c290c2
Fixed bug with the btb's valid bit not beind held on a stall.
2023-01-29 00:49:23 -06:00
Ross Thompson
f93eaeef8e
Fixed another bug with the speculative gshare with instruction class prediction.
2023-01-29 00:33:40 -06:00
David Harris
481cb8bad0
Renamed BPTYPE to BPRED_TYPE
2023-01-28 20:06:12 -08:00
David Harris
94daedeed6
Renamed DCACHE to DCACHE_SUPPORTED and ICACHE to ICACHE_SUPPORTED
2023-01-28 18:52:00 -08:00
David Harris
e4e7e827d6
Renamed BUS to BUS_SUPPORTED
2023-01-28 18:35:53 -08:00
David Harris
a0b4e7fb24
Config cleanup and renamed BPRED_ENABLED to BPRED_SUPPORTED
2023-01-28 18:17:42 -08:00
David Harris
33143e5958
Fixed typo in ram2p1r1wbe_1024x69 and renamed for consistency
2023-01-28 18:07:33 -08:00
David Harris
1bb1fc7604
Merge branch 'main' of https://github.com/openhwgroup/cvw into dev
2023-01-28 17:55:08 -08:00
James Stine
a1d892703c
Modified changes as follows
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* Add docs directory for Docker including Dockerfile
* Change to synthesis script to include fpu stuff
* Add wrappers for IP (may need some cleanup but will cleanup shortly)
2023-01-28 19:33:00 -06:00
Ross Thompson
f6aafd6bad
Fixed bug with the new csr.
2023-01-28 17:56:56 -06:00
Ross Thompson
6371d91b37
Added another performance counter to track overall branch miss-predictions.
2023-01-28 17:50:46 -06:00
Ross Thompson
57deb68fb3
Found an issue where the btb was not forwarding the valid bit!
2023-01-28 17:00:50 -06:00
Ross Thompson
6d9c463893
Possible workign instruction class prediction repair.
2023-01-28 16:42:19 -06:00
Ross Thompson
8a277f6b75
Possible fix for speculative gshare.
2023-01-28 16:14:19 -06:00
