Wesley W. Terpstra
66f64a9759
tilelink2 ToAXI4: don't interlock R+W for non-FIFO masters ( #822 )
...
idCount <= 1 implies that no more than one transaction can be inflight,
so there is no need to interlock R+W. However, when stripBits > 0, it is
possible for a non-FIFO master to have > 1 idCount. In this case, we
also don't need to interlock R+W.
2017-06-26 17:54:17 -07:00
Wesley W. Terpstra
8ca6c10994
tilelink2: ToAXI4 can strip off low source ID bits
...
Some TL converters place extra meta data in the low bits of source.
Examples include the TLFragmenter and CacheCork.
This new argument makes it possible to save AXI4 ID space by reclaiming
those bits upon conversion.
2017-06-23 17:22:45 -07:00
Wesley W. Terpstra
87a5665e43
axi4: only block writes if SAME master has outstanding reads ( #782 )
...
* axi4: only block writes if SAME master has outstanding reads
* tilelink2: ToAXI4 rename variable
TL uses sources, not IDs like AXI. Keep it less confusing.
* tilelink2: ToAXI4 improve stall circuit delay
Don't bother decoding the AXI ID to compute stall.
2017-06-05 16:54:00 -07:00
Wesley W. Terpstra
d25ad10592
diplomacy: require masters to have a name
2017-06-02 15:52:20 -07:00
Wesley W. Terpstra
9317a00896
tilelink2: ToAXI4, sort and print AXI IDs used
2017-06-02 14:27:37 -07:00
Wesley W. Terpstra
4847c32599
tilelink: ToAXI4 - must interlock till last beat
...
AXI4 makes no guarantee that bursts are handled atomicly.
Thus, you could be part-way through a read burst and suddenly
a write cuts ahead and is visible later, violating FIFO.
2017-05-08 00:17:06 -07:00
Wesley W. Terpstra
58a4529cc5
axi4: the last missing piece for safe FIFO ordering
2017-05-01 22:53:41 -07:00
Wesley W. Terpstra
d27e1928dd
axi4: make maxFlight a per-master parameter
2017-05-01 22:53:40 -07:00
Wesley W. Terpstra
9f08c484bd
tilelink2: ToAXI4 provide FIFO order semantics
2017-05-01 22:53:40 -07:00
Jacob Chang
1c6dde8c15
Make parameters for TLToAHB and TLToAXI4 accessable ( #581 )
2017-03-10 22:26:38 -08:00
Wesley W. Terpstra
cfd367248f
rocketchip: add blind ports to DTS
2017-03-02 21:19:22 -08:00
Wesley W. Terpstra
972953868c
uncore: switch to new diplomacy Node API
...
Most adapters should work on multiple ports.
This patch changes them all.
2017-01-29 15:54:45 -08:00
Wesley W. Terpstra
6ff35a387a
tilelink2: disable A=>D bypass in ToAXI4 whenever possible
2017-01-24 18:11:00 -08:00
Wesley W. Terpstra
64e1de751d
axi4: add a minLatency parameter
2017-01-24 18:11:00 -08:00
Wesley W. Terpstra
bf7823f1c8
tilelink2: split suportsAcquire into T and B variants
2017-01-19 19:07:13 -08:00
Wesley W. Terpstra
020fbe8be9
diplomacy: make config.Parameters available in bundle connect()
...
This makes it posisble to use Parameters to control Monitors.
However, we need to make all LazyModules carry Parameters.
2016-12-07 12:24:01 -08:00
Wesley W. Terpstra
b7963eca4e
copyright: ran scripts/modify-copyright
2016-11-27 22:15:43 -08:00
Henry Cook
c0efd247b0
[tl2] expand firstlast api and L1WB bugfix
2016-11-14 12:12:31 -08:00
Wesley W. Terpstra
d067e87a7d
tilelink2 Parameters: sinkId is per port, not per manager
2016-11-03 14:37:17 -07:00
Wesley W. Terpstra
4d50733548
tilelink2 ToAXI4: use helper method for a_last ( #418 )
2016-10-25 10:16:42 -07:00
Wesley W. Terpstra
0aebf9e341
tilelink2 ToAXI4: no arbitration path register needed
2016-10-13 17:02:17 -07:00
Wesley W. Terpstra
a423f97844
axi4: parameterized AXI master constraint for aligned access
2016-10-12 17:02:02 -07:00
Wesley W. Terpstra
673cf1fdb5
tilelink2 ToAXI4: must create irrevocable D for now
2016-10-12 17:02:01 -07:00
Wesley W. Terpstra
8e92ac32b7
tilelink2 ToAXI4: we need a Queue on B to guarantee deadlock freedom
2016-10-12 17:02:01 -07:00
Wesley W. Terpstra
adf5f1807b
tilelink2: ToAXI4 bridge added
2016-10-10 11:21:50 -07:00
