Andrew Waterman
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ab0821f25b
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Move microarchitecture-neutral params from Rocket to Core
This makes some of the units more reusable.
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2017-10-03 17:34:18 -07:00 |
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Andrew Waterman
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ba4eecc0f0
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Use UIntToOH1 (#921)
Closes #920
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2017-08-03 14:55:39 -07:00 |
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Henry Cook
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4c595d175c
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Refactor package hierarchy and remove legacy bus protocol implementations (#845)
* Refactors package hierarchy.
Additionally:
- Removes legacy ground tests and configs
- Removes legacy bus protocol implementations
- Removes NTiles
- Adds devices package
- Adds more functions to util package
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2017-07-07 10:48:16 -07:00 |
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Andrew Waterman
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8c10caeef9
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Express PMP mask generation with incrementer, not adder
DC apparently doesn't always pick up the ((x + 1) ^ x) idiom.
Use (x + ~(x + 1)) instead.
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2017-04-27 15:16:29 -07:00 |
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Andrew Waterman
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debcbca7de
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Make PMP tolerant to PA size << VA size
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2017-04-17 10:28:33 -07:00 |
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Andrew Waterman
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fd39eadcd6
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New PMP encoding
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2017-03-30 00:36:23 -07:00 |
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Andrew Waterman
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5d1165c850
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Express PMP mask generator using a carry chain
This allows it to be optimized like an adder, improving QoR when it
is on the critical path.
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2017-03-26 14:20:16 -07:00 |
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Andrew Waterman
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17b1ee3037
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Default to 8 PMPs; support 0 PMPs
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2017-03-24 16:39:52 -07:00 |
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Andrew Waterman
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ccd5bc9a91
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Improve QoR of PMP homogeneity checker
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2017-03-24 16:39:52 -07:00 |
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Andrew Waterman
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8d7f1d777e
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Fix an embarrassing typo in the PMPHeterogeneityChecker
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2017-03-24 16:39:52 -07:00 |
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Andrew Waterman
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d3bda9574c
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Put page homogeneity checker in PMP
Avoids redundancy between ITLB and DTLB
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2017-03-24 16:39:52 -07:00 |
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Andrew Waterman
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9e05200e51
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Don't require that PMP ranges be aligned to access size
e.g., if a range permits access to 0x0-0xb, allow 8-byte accesses 0x0-0x7.
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2017-03-24 16:39:52 -07:00 |
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Andrew Waterman
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29e67279ba
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add comments
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2017-03-24 16:39:52 -07:00 |
|
Andrew Waterman
|
4c8be13a4d
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Improve homogeneity circuit QoR
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2017-03-24 16:39:52 -07:00 |
|
Andrew Waterman
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38808f55d5
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Share PMP mask gen between I$ and D$
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2017-03-24 16:39:52 -07:00 |
|
Andrew Waterman
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86d84959cf
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More WIP on PMP
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2017-03-24 16:39:52 -07:00 |
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Andrew Waterman
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723352c3e2
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Mitigate some more PMP critical paths
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2017-03-24 16:39:52 -07:00 |
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Andrew Waterman
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aace526857
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WIP on PMP
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2017-03-24 16:39:52 -07:00 |
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