riscv/rocket-chip
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Author SHA1 Message Date
Wesley W. Terpstra
b42cfdc9dd tilelink2 Arbiter: there is only one winner 2016-10-13 17:02:17 -07:00
Wesley W. Terpstra
b6e9b0c558 tilelink2 Arbiter: allow preemption of first beat 2016-10-13 17:02:17 -07:00
Wesley W. Terpstra
0aebf9e341 tilelink2 ToAXI4: no arbitration path register needed 2016-10-13 17:02:17 -07:00
Wesley W. Terpstra
0e897b905f tilelink2 RegisterRouter: data path register is no longer required 2016-10-13 17:02:17 -07:00
Wesley W. Terpstra
c4eadd3ab3 tilelink2 Monitor: enforce stricter transaction ordering 2016-10-13 17:02:17 -07:00
Wesley W. Terpstra
d8a1163131 tilelink2 Monitor: don't enforce Irrevocable any more 2016-10-13 17:02:17 -07:00
Wesley W. Terpstra
405f66da32 tilelink2 WidthWidget: cope with Decoupled inputs 2016-10-13 17:02:17 -07:00
Wesley W. Terpstra
e2e72ac979 tilelink2 Fragmenter: cope with Decoupled input 2016-10-13 17:02:17 -07:00
Wesley W. Terpstra
023c6402e9 tilelink2: switch to DecoupledIO syntax 2016-10-13 17:02:17 -07:00
Wesley W. Terpstra
980bb3fbfd Merge pull request #395 from ucb-bar/axi4-fragmenter 
AXI4 fragmenter
 2016-10-13 17:01:53 -07:00
Wesley W. Terpstra
4c1c52486b axi4 Fragmenter: handle more inflight AXI requests than we have space 2016-10-13 15:52:32 -07:00
Wesley W. Terpstra
8005266131 axi4 Fragmenter: refine sideband FSM for case of last fragment 2016-10-13 15:52:32 -07:00
Wesley W. Terpstra
19064e602b axi4 Fragmenter: align all output accesses 
We promised the output is aligned. Make good on that!
 2016-10-13 15:52:27 -07:00
Wesley W. Terpstra
84be93f9f3 axi4 Fragmenter: confirm correct handling of last 2016-10-13 14:01:23 -07:00
Wesley W. Terpstra
1c79a23a8b axi4 Fragmenter: initialize error response to 0 2016-10-13 13:46:24 -07:00
Wesley W. Terpstra
958af132ba axi4 Fragmenter: optimize dynamic slave lookup 2016-10-12 17:29:38 -07:00
Wesley W. Terpstra
11169d155c axi4: add a Buffer to put between nodes 2016-10-12 17:08:52 -07:00
Wesley W. Terpstra
a9a3f7dd4e tilelink2 RAMModel: include name of test in output 2016-10-12 17:08:52 -07:00
Wesley W. Terpstra
345eefd81b axi4: include unit tests 2016-10-12 17:08:52 -07:00
Wesley W. Terpstra
a6c6d99848 axi4: prototype Fragmenter 2016-10-12 17:08:49 -07:00
Wesley W. Terpstra
c918aa6d89 axi4: name AdapterNode parameters properly 2016-10-12 17:02:02 -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
38b6c1c820 tilelink2 axi4: RegisterRouter can cut ready dependency 2016-10-12 17:02:01 -07:00
Wesley W. Terpstra
dc26736f32 axi4 tilelink2: include minAlignment and maxAddress in slaves 2016-10-12 17:02:01 -07:00
Wesley W. Terpstra
538437384a tilelink2 Fragmenter: combine AccessAck errors 2016-10-12 17:02:01 -07:00
Wesley W. Terpstra
4caa543ad7 tilelink2: Fragmenter should not cut Acquire parameters 
The correct response to misuse is to fail a requirement check.
Pretending that things are not caches could lead to inconsistency.
 2016-10-11 22:38:03 -07:00
Wesley W. Terpstra
6336f94fa2 tilelink2: only caches can support B requests 2016-10-11 22:38:02 -07:00
Wesley W. Terpstra
4a975ca380 tilelink2: add a rightOR to go with our leftOR 2016-10-11 22:38:02 -07:00
Wesley W. Terpstra
b2a5d18e37 diplomacy: simplify address range fragmentation 2016-10-11 22:36:21 -07:00
Wesley W. Terpstra
73e9508c09 Merge pull request #387 from ucb-bar/safer-crossings 
Safer crossings
 2016-10-10 14:44:33 -07:00
Wesley W. Terpstra
b0e33f4a39 tilelink2: use TLArbiter in HintHandler 2016-10-10 13:15:28 -07:00
Wesley W. Terpstra
683a2e6785 tilelink2: refactor firstlast helper method 2016-10-10 13:15:28 -07:00
Wesley W. Terpstra
a404cd2abf tilelink2: use NodeHandle to restore Crossing.node API 2016-10-10 13:15:28 -07:00
Wesley W. Terpstra
876609eb0e diplomacy: add NodeHandles to support abstraction 2016-10-10 13:15:25 -07:00
Wesley W. Terpstra
97af07eb3e tilelink2: clarify use of Isolation 2016-10-10 13:13:32 -07:00
Wesley W. Terpstra
76388117bb regmapper: detect improper reset sequencing in RegisterCrossing 2016-10-10 13:13:32 -07:00
Wesley W. Terpstra
b5f5ef69c1 regmapper: eliminate race condition in RegisterCrossing bypass 2016-10-10 13:13:32 -07:00
Wesley W. Terpstra
f250426728 tilelink2: blow up if the channels carry data when they should not 2016-10-10 13:13:32 -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)" 
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 
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! 
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() 
This seems to be the more common API
 2016-10-10 13:13:31 -07:00
Wesley W. Terpstra
6d6aa3eb13 tilelink2: Isolation must also connect reset_n 2016-10-10 13:13:31 -07:00