Ross Thompson
57ab5a7488
Simplified gshare.
2023-01-30 19:27:18 -06:00
Ross Thompson
0e29a5f9c2
Minor gshare optimization.
2023-01-30 18:13:12 -06:00
Ross Thompson
7a4218788c
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
63267ff378
optimized branch predictor by removing unnecessary registers.
2023-01-29 22:39:37 -06:00
Ross Thompson
dd9d2be89c
Updated global history branch predictcor with the gshare improvements.
2023-01-29 16:26:44 -06:00
Ross Thompson
a9902337cf
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
7c8b2b685f
gshare cleanup.
2023-01-29 15:07:45 -06:00
Ross Thompson
2a336cfb71
Gshare cleanup.
2023-01-29 15:06:35 -06:00
Ross Thompson
244885d3fa
Found bug in gshare.
2023-01-29 15:03:25 -06:00
Ross Thompson
49a7d10914
Fixed typo in testbench branch logger.
2023-01-29 01:00:52 -06:00
Ross Thompson
5c83de4c46
Fixed another bug with the branch logger.
2023-01-29 00:59:59 -06:00
Ross Thompson
6afd7f4fac
Fixed bug in the branch logger.
2023-01-29 00:58:50 -06:00
Ross Thompson
250a8df7c3
Updated testbench for branch logger.
2023-01-29 00:56:11 -06:00
Ross Thompson
c8df460b28
Fixed bug with the btb's valid bit not beind held on a stall.
2023-01-29 00:49:23 -06:00
Ross Thompson
9e3074689d
Fixed another bug with the speculative gshare with instruction class prediction.
2023-01-29 00:33:40 -06:00
David Harris
0f13941d3b
Removed unused BPRED file referenes from fpga config
2023-01-28 20:22:36 -08:00
David Harris
799caef2c9
Renamed BPTYPE to BPRED_TYPE
2023-01-28 20:06:12 -08:00
David Harris
b89fe9989e
Renamed DCACHE to DCACHE_SUPPORTED and ICACHE to ICACHE_SUPPORTED
2023-01-28 18:52:00 -08:00
David Harris
fa3643a064
Renamed BUS to BUS_SUPPORTED
2023-01-28 18:35:53 -08:00
David Harris
8a96dcf0ae
Config cleanup and renamed BPRED_ENABLED to BPRED_SUPPORTED
2023-01-28 18:17:42 -08:00
David Harris
c73fe4041e
Fixed typo in ram2p1r1wbe_1024x69 and renamed for consistency
2023-01-28 18:07:33 -08:00
David Harris
e27ab1a052
Merge branch 'main' of https://github.com/openhwgroup/cvw into dev
2023-01-28 17:55:08 -08:00
James Stine
5a0d8aed23
Modified changes as follows
...
* 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
6945eaf045
Fixed bug with the new csr.
2023-01-28 17:56:56 -06:00
Ross Thompson
684a7214cb
Added another performance counter to track overall branch miss-predictions.
2023-01-28 17:50:46 -06:00
Ross Thompson
3ddf95ac6e
Found an issue where the btb was not forwarding the valid bit!
2023-01-28 17:00:50 -06:00
Ross Thompson
b52990e2ce
Possible workign instruction class prediction repair.
2023-01-28 16:42:19 -06:00
Ross Thompson
3f25123c63
Possible fix for speculative gshare.
2023-01-28 16:14:19 -06:00
David Harris
ed1aaa6c8f
Comment cleanup in subcachelineread
2023-01-28 11:00:05 -08:00
David Harris
1b0b9314c4
removed unused memory model
2023-01-28 10:58:36 -08:00
David Harris
6c59c21a26
Updated cvw to be consistent with configs
2023-01-28 10:58:02 -08:00
David Harris
1041775be4
Removed DEISGN_COMPILER configuration paramter
2023-01-28 10:51:39 -08:00
David Harris
eeaa5d9982
Removed unneeded lint directive from core
2023-01-27 15:48:30 -08:00
David Harris
aee984ca69
Use CVW configuration in top-level
2023-01-27 15:47:36 -08:00
David Harris
c2ce2947f9
Removed unused BMU, added CVW configuration
2023-01-27 15:47:15 -08:00
David Harris
5547179a3c
Added missing PLIC_GPIO_ID to two config files
2023-01-27 15:23:32 -08:00
David Harris
848ccd8b90
Fixed license header for config files to SolderPad
2023-01-27 15:17:17 -08:00
Ross Thompson
a953954909
Clarified gshare bp.
2023-01-27 16:40:20 -06:00
David Harris
a99fc74976
Removed integer from localparams
2023-01-27 14:40:06 -08:00
David Harris
717cb4e6c5
Removed int/integer from parameters)
2023-01-27 14:27:04 -08:00
Ross Thompson
121fbd9646
Removed pessimistic x propagation issue for wally32priv test in the branch predictor.
2023-01-27 15:28:31 -06:00
Ross Thompson
cf49c7ddc1
Found issue with branch predictor.
2023-01-27 13:13:55 -06:00
David Harris
44c7102026
Renamed ram2p1rw1be to match modeule name
2023-01-27 09:54:50 -08:00
Ross Thompson
6c86c0389c
Very hacky. But I think gshare is now correct with respect to repair on instruction class miss prediction.
2023-01-27 11:34:45 -06:00
David Harris
4744996282
Removed suggestion about make allclean
2023-01-27 05:57:05 -08:00
David Harris
4f7e1b9423
Fixed typo in bpred preventing compiling
2023-01-27 05:55:53 -08:00
David Harris
e682b8d0d4
renamed brpred to bpred
2023-01-27 05:55:31 -08:00
David Harris
3986e84179
Merge branch 'main' of https://github.com/openhwgroup/cvw into dev
2023-01-26 14:52:25 -08:00
Ross Thompson
bbb47fc943
Changed the performance counters to track different data.
...
Now rather than tracking jump(r) we track jump(r) and taken branches.
2023-01-26 13:21:28 -06:00
Ross Thompson
e0ca23cdd6
Fixed another bug with the compressed instruction class decode.
2023-01-26 12:19:33 -06:00
