Ross Thompson
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1a003019d6
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Actually fixed non-power of 2 issue with RAS.
Added RAS swapping to branch predictor scripts and configurations.
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2023-09-27 12:25:05 -05:00 |
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Ross Thompson
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9ec2bfd052
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Fixed sutble RAS bug when the stack size was not a power of 2.
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2023-09-27 12:00:47 -05:00 |
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Ross Thompson
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3bf2b35704
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Wow. The newest version of Vivado does not like the enums as parameters.
The solution is simple. I changed the type to logic [31:0] and defined macros for the branch predictor types as 32 bit integers.
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2023-07-18 15:07:10 -05:00 |
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Ross Thompson
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a011b7d591
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Merge branch 'testbench-params2'
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2023-06-15 15:31:13 -05:00 |
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Ross Thompson
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44c72c20e2
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Actually removed old `define configuration file for rv64gc. There were a lot of dangling problems.
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2023-06-15 14:05:44 -05:00 |
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Ross Thompson
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e431f90cf3
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Found a whole bunch of files still using the old `define configurations.
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2023-06-15 13:09:07 -05:00 |
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David Harris
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e2e6f6f255
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Added named support for Zicntr and Zihpm
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2023-06-09 09:35:51 -07:00 |
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Ross Thompson
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e56497101a
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Updated source code to be compatible with verilator 5.011 for lint only.
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2023-05-31 10:44:23 -05:00 |
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Ross Thompson
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903f2f9063
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Merge branch 'param-lim-merge'
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2023-05-26 16:25:35 -05:00 |
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Ross Thompson
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340aac0934
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Got the branch predictor parameterized using Lim's method. Also had to add a global enum included in both cvw.sv and the configs which defines the branch predictor types. This should be synthesizable, but I'll need to double check.
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2023-05-26 16:00:14 -05:00 |
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Ross Thompson
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3de3a42f97
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Merged changes.
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2023-05-24 13:15:52 -05:00 |
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Ross Thompson
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b28a75f32a
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Updated headers to local branch history predictors.
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2023-05-24 12:52:42 -05:00 |
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Ross Thompson
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6163fc29e1
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Adds local history predictor.
Fixes performance counters, but not coremark.
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2023-05-23 18:53:46 -05:00 |
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Ross Thompson
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03823a9bc1
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Partially working local history repair.
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2023-05-11 14:56:26 -05:00 |
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Ross Thompson
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e34b25511a
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Baseline localhistory with speculative repair built.
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2023-05-05 15:23:45 -05:00 |
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Ross Thompson
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faf71294d6
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Fixed bug in local history predictor.
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2023-05-04 16:54:41 -05:00 |
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Ross Thompson
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e11d42b270
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Almost working ahead pipelined local history predictor.
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2023-05-04 16:17:31 -05:00 |
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Ross Thompson
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8da2b18543
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Maybe I finally have the ahead pipelined local history predictor working.
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2023-05-04 14:11:34 -05:00 |
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Ross Thompson
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afafa9718d
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Ahead pipelining is not yet working. :(
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2023-05-03 17:41:38 -05:00 |
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Ross Thompson
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35a59a1193
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I think ahead pipelining is working for local history.
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2023-05-03 12:52:32 -05:00 |
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Ross Thompson
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c4d6724867
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Updated configs for local branch history `defines.
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2023-05-02 11:11:04 -05:00 |
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Ross Thompson
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9ee6ba8964
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Added comment explaining the difference between global history and local history basic implementations.
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2023-05-02 11:01:46 -05:00 |
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Ross Thompson
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799c25cc60
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Swapped the m and k parameters for local history predictor.
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2023-05-02 10:52:41 -05:00 |
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Ross Thompson
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b9abb2a491
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Maybe have the baseline local history predictor working.
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2023-05-01 15:45:27 -05:00 |
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Ross Thompson
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89a242d143
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Might actually have a correct implementation of local history branch prediction.
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2023-04-24 13:05:28 -05:00 |
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Ross Thompson
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7588de5a36
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Fixed the local branch predictor so that it at least compiles.
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2023-04-24 11:06:53 -05:00 |
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Limnanthes Serafini
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95223bf11c
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More cleanup
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2023-04-13 21:34:50 -07:00 |
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David Harris
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495f2ed274
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Improved RAS predictor coverage by eliminating unreachable StallM term
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2023-04-07 21:37:12 -07:00 |
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Ross Thompson
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730f3ac84e
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Fixed all tap/space issue in RTL.
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2023-03-24 17:32:25 -05:00 |
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Ross Thompson
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ede9d49ce4
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Changes BTA to BPBTA.
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2023-03-12 14:36:46 -05:00 |
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Ross Thompson
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7dd8fa16c1
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Renamed BTB misprediction to BTA.
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2023-03-03 00:18:34 -06:00 |
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Ross Thompson
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3d1ffac7d7
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Cleaned up branch predictor performance counters.
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2023-03-01 17:05:42 -06:00 |
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Ross Thompson
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a61f8bc4cf
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Set bp to use instruction class prediction by default.
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2023-03-01 11:52:42 -06:00 |
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Ross Thompson
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e8744684cd
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Branch predictor cleanup.
I think Ch 10 is now done except for BTB performance analysis and the section on running benchmarks and collecting data.
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2023-03-01 11:24:24 -06:00 |
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Ross Thompson
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08a1153ae9
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More btb cleanup.
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2023-03-01 10:47:00 -06:00 |
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Ross Thompson
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dd2433f7ff
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Minor fix to btb.
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2023-03-01 10:45:40 -06:00 |
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Ross Thompson
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2773048bd4
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Name cleanup.
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2023-02-28 17:48:58 -06:00 |
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Ross Thompson
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87013ccaf0
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Found the performance bug with the branch predictor btb power saving update.
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2023-02-28 15:57:34 -06:00 |
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Ross Thompson
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8af61c0cc0
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Name changes to reflect diagrams.
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2023-02-28 15:37:25 -06:00 |
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Ross Thompson
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a823d8d021
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Undid the btb update as it reduces performance.
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2023-02-28 15:21:56 -06:00 |
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Ross Thompson
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3261f31e88
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This icpred and btb changes are causing a performance issue.
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2023-02-27 20:00:50 -06:00 |
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Ross Thompson
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69e8358639
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Modified the BTB to save power by not updating when the prediction is unchanged.
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2023-02-27 17:37:29 -06:00 |
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Ross Thompson
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a81cc883e9
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Signal name changes.
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2023-02-27 00:39:19 -06:00 |
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Ross Thompson
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447f6b1443
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Branch predictor cleanup.
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2023-02-26 21:28:36 -06:00 |
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Ross Thompson
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3804626166
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Create module for instruction class prediction and decoding.
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2023-02-26 20:20:30 -06:00 |
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Ross Thompson
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7500bb75c6
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PHT was enabled using the wrong ~flush and ~stall.
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2023-02-24 22:57:32 -06:00 |
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Ross Thompson
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63b9f9ca3d
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gshare cleanup.
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2023-02-24 22:55:51 -06:00 |
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Ross Thompson
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ed7ab402ad
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More signal renames.
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2023-02-24 19:56:55 -06:00 |
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Ross Thompson
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e549bec060
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Renamed signals to match new figures.
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2023-02-24 19:51:47 -06:00 |
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Ross Thompson
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6ff524d843
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Renamed signals to match figure 10.18.
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2023-02-24 19:22:14 -06:00 |
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