Wesley W. Terpstra
ac0bb841da
AsyncQueue: cope with far reset propagation delay
2016-10-14 18:05:35 -07:00
Wesley W. Terpstra
1b09f1360d
AsyncQueue: adjust register names to match vals
2016-10-10 13:13:32 -07:00
Wesley W. Terpstra
e7f8a7e9ea
AsyncQueue: make it clear that the SyncChain is not Gray specific
2016-10-10 13:13:32 -07:00
Wesley W. Terpstra
52b8121e68
Apply "async_queue: Give names to all the registers which show up in the queue ( #390 )"
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Adjusted to include names for the new registers.
Changes to RegisterCrossing were discarded.
2016-10-10 13:13:31 -07:00
Wesley W. Terpstra
ffb734ac0e
AsyncQueue: disambiguiate the reset_n signal names
2016-10-10 13:13:31 -07:00
Wesley W. Terpstra
5ee53c61d6
util: clarify an AsyncQueue corner-case
2016-10-10 13:13:31 -07:00
Wesley W. Terpstra
609fd97a71
util: AsyncQueue detect power-down/reset of non-empty queue
2016-10-10 13:13:31 -07:00
Wesley W. Terpstra
75bb94017b
util: resynchronize AsyncQueue counters when far side resets
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If the other clock domain is much faster than ours, it's reset
might be shorter than a single cycle in our domain. In that case,
we need to catch the reset and extend it.
2016-10-10 13:13:31 -07:00
Wesley W. Terpstra
5e2609bdd2
AsyncQueueSource: don't feed reset into normal logic!
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There is no need to block writes to mem during reset.
The Queue must be empty anyway.
2016-10-10 13:13:31 -07:00
Wesley W. Terpstra
2f6985efd3
crossings: use flip not flip()
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This seems to be the more common API
2016-10-10 13:13:31 -07:00
Wesley W. Terpstra
cb7b16f1a9
util: exchange resets between AsyncQueue source and sink
2016-10-10 13:13:31 -07:00
Wesley W. Terpstra
8c7d469a95
Revert "async_queue: Give names to all the registers which show up in the queue ( #390 )"
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This reverts commit a84a961a39
2016-10-10 13:13:31 -07:00
mwachs5
a84a961a39
async_queue: Give names to all the registers which show up in the queue ( #390 )
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This is to aid debugging but even more so for backend constraint writers, who generally
need predictable names for registers to set false paths, etc.
2016-10-08 17:50:50 -07:00
mwachs5
e952f8f222
asyncqueue: Fix typo in the Async Queue ( #381 )
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* asyncqueue: Fix typo in the Async Queue that would cause the sync depth to be one less than expected.
* asyncqueue: Typo in the typo fix
2016-10-04 21:02:06 -07:00
Wesley W. Terpstra
20f42a8762
tilelink2: reuse the halves of the AsyncQueue
2016-09-29 17:35:08 -07:00
Howard Mao
9910c69c67
Move a bunch more things into util package
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A lot of utility code was just being imported willy-nilly from one
package to another. This moves the common code into util to make things
more sensible. The code moved were
* The AsyncQueue and AsyncDecoupledCrossing from junctions.
* All of the code in rocket's util.scala
* The BlackBox asynchronous reset registers from uncore.tilelink2
* The implicit definitions from uncore.util
2016-09-29 14:23:42 -07:00
