Ross Thompson
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9dd3379744
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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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544abe2819
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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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bc5aecf948
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Merge branch 'main' of https://github.com/openhwgroup/cvw
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2023-02-27 09:48:03 -06:00 |
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David Harris
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cf8b5f0783
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Added support for ZMMUL
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2023-02-27 07:29:53 -08:00 |
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Ross Thompson
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318189e5e6
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Signal name changes.
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2023-02-27 00:39:19 -06:00 |
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David Harris
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f40352e82b
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hptw typo fix
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2023-02-26 19:38:34 -08:00 |
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Ross Thompson
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c89812b2d4
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Branch predictor cleanup.
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2023-02-26 21:28:36 -06:00 |
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David Harris
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e9ad6ae057
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Simplified Access fault logic in HPTW
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2023-02-26 18:50:37 -08:00 |
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David Harris
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2d7145901b
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StoreAmo faults are generated instead of load faults on AMO operations
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2023-02-26 18:35:10 -08:00 |
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Ross Thompson
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e8c5e5b5ff
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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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3964ce3309
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Merge branch 'main' of https://github.com/openhwgroup/cvw into main
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2023-02-26 19:58:24 -06:00 |
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David Harris
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21b28fd1bb
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Renamed DAPageFault to UpdateDA
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2023-02-26 17:51:45 -08:00 |
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David Harris
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4274071333
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renamed UpperBitsUnequalPageFault to UpperBitsUnequal
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2023-02-26 17:32:34 -08:00 |
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David Harris
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06bd4783af
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moved tlb to subdirectory
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2023-02-26 17:31:03 -08:00 |
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David Harris
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c774b44116
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Moved TLB into subdirectory of MMU
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2023-02-26 17:28:05 -08:00 |
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Ross Thompson
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72be4318b8
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Merge branch 'main' of https://github.com/openhwgroup/cvw into main
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2023-02-26 12:06:06 -06:00 |
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David Harris
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dc447ed5ed
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Removed unneeded TLBFlush from TLBMiss
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2023-02-26 10:04:16 -08:00 |
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David Harris
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54b8e7c629
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Access faults are geted by ~TLBMiss rather than ~(Translate & ~TLBHit)
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2023-02-26 09:58:34 -08:00 |
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David Harris
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35653a18b7
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Renamed HPTW_WRITES_SUPPORTED to SVADU_SUPPORTED
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2023-02-26 09:38:32 -08:00 |
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David Harris
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f31764c3e1
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Renamed DAPageFault to HPTWDAPageFault in hptw to avoid name conflict with DAPageFault from tlbcontrol
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2023-02-26 07:12:43 -08:00 |
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David Harris
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fe161f6bde
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Fixed missing assign when SSTC is not supported
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2023-02-26 07:12:13 -08:00 |
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David Harris
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8895114152
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Fixed SSTC being unusable in M-MODE without Status.TM. Disable STIMECMP registers when SSTC_SUPPORTED = 0
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2023-02-26 06:30:43 -08:00 |
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Ross Thompson
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7f8034013d
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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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eb9dc7e67d
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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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9df05f0b3d
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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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8bd4a4c35b
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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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f95f326b3d
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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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Ross Thompson
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40a164a8da
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Merge branch 'main' of https://github.com/openhwgroup/cvw
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2023-02-24 18:50:35 -06:00 |
|
Ross Thompson
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4031b89f18
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Possible fix to btb performance issue.
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2023-02-24 18:36:41 -06:00 |
|
Ross Thompson
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ea8cb7dd78
|
Cleanup.
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2023-02-24 18:20:42 -06:00 |
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Ross Thompson
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a14dcaa241
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Completed critical path gshare fix.
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2023-02-24 18:02:00 -06:00 |
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Ross Thompson
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31d6531af2
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Prep to fix gshare critical path.
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2023-02-24 17:54:48 -06:00 |
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Ross Thompson
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5db56460b9
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Modified btb forwarding logic to reduce critical path.
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2023-02-24 17:47:43 -06:00 |
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David Harris
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adfc01fc5a
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Fixed special cases of address decoder and documented better
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2023-02-24 07:52:46 -08:00 |
|
Ross Thompson
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2920179435
|
Major cleanup of bp.
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2023-02-23 16:19:03 -06:00 |
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Ross Thompson
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fa49de8391
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Partial replacement of InstrClassX with {JalX, RetX, JumpX, and BranchX}.
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2023-02-23 15:55:34 -06:00 |
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Ross Thompson
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8503982328
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Branch predictor cleanup.
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2023-02-23 15:15:14 -06:00 |
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Ross Thompson
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403b2b7be1
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Moved more branch predictor logic into the performance counter block.
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2023-02-23 15:14:56 -06:00 |
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Ross Thompson
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526f046fb0
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Added if generate around bp logic only used with performance counters.
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2023-02-23 14:39:31 -06:00 |
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Ross Thompson
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2d919fa9e3
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Renamed PCPredX to BTAX.
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2023-02-23 14:33:32 -06:00 |
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Ross Thompson
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c736d7c1f3
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Fixed bug in basic gshare.
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2023-02-22 12:54:46 -06:00 |
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Ross Thompson
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849856034b
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Merge branch 'main' of https://github.com/openhwgroup/cvw
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2023-02-22 09:11:57 -06:00 |
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Ross Thompson
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5dde3af22e
|
Oups. Turns out dc_shell does not like string parameters.
Switched gshare to use an integer parameter to select between gshare and global.
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2023-02-22 09:11:46 -06:00 |
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David Harris
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f0566173e6
|
Merge branch 'main' of https://github.com/openhwgroup/cvw into dev
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2023-02-21 09:58:18 -08:00 |
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David Harris
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b59df0fca7
|
Fixed Issue #65 fmv sign selection. Sign needs to come from most significant bit of raw X source without doing NaN Box fixes first.
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2023-02-21 09:57:57 -08:00 |
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David Harris
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a445e53e8d
|
Fixed Issue #106: fld rasies load access fault instead of illegal instruction. The IEU controller had considered all fp loads and stores to be legal regardless of whether the FPU is enabled or the type is supported. Merged illegal instruction detection from both units into the Decode stage, saving two bits of pipeline register as well.
|
2023-02-21 09:32:17 -08:00 |
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Ross Thompson
|
7f0d64d0a6
|
Fixed typo in the global branch predictor.
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2023-02-20 18:48:02 -06:00 |
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Ross Thompson
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2c2c1b5221
|
Cleanup branch predictor files.
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2023-02-20 18:45:45 -06:00 |
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Ross Thompson
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7df3a84060
|
Renamed branch predictors and consolidated global and gshare predictors.
|
2023-02-20 18:42:37 -06:00 |
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Ross Thompson
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6eefa5b1e3
|
Fixed another bug in the btb.
|
2023-02-20 17:54:22 -06:00 |
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