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Author SHA1 Message Date
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
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)" 
This reverts commit a84a961a39.

The changes to RegisterCrossing.scala were unneeded after application of this branch.
The name changes made to the AsyncQueue.scala are reapplied at the end of this branch.
 2016-10-10 13:13:31 -07:00
Wesley W. TerpstraandGitHub b6bc6b7a4d Merge pull request #382 from ucb-bar/axi4 
axi4: diplomacy capable AXI4 with TL2 bridge
 2016-10-10 13:11:12 -07:00
Wesley W. Terpstra adf5f1807b tilelink2: ToAXI4 bridge added 2016-10-10 11:21:50 -07:00
Wesley W. Terpstra e856cbe3a6 axi4: SRAM for testing 2016-10-10 11:21:50 -07:00
Wesley W. Terpstra abb02aa6f4 axi4: add a RegisterRouter for generic devices 2016-10-10 11:21:50 -07:00
Wesley W. Terpstra 2f7081aeaf tilelink2: make mask generation reusable 2016-10-10 11:21:50 -07:00
Wesley W. Terpstra b29d34038e axi4: diplomacy capable AXI4 2016-10-10 11:21:50 -07:00
Wesley W. Terpstra dcb9383568 PositionalMultiQueue: work around vcs Lint report 
Lint-[PCTIO-L] Ports coerced to inout
rocket-chip/vsim/generated-src/unittest.UncoreUnitTestConfig.v, 127524
"io_deq_0_valid"
  Port "io_deq_0_valid" declared as output in module "PositionalMultiQueue_16"
  may need to be inout. Coercing to inout.
 2016-10-10 11:21:49 -07:00
Wesley W. Terpstra 5d905a5310 PositionalMultiQueue: shared storage FIFO 1-push n-pop 2016-10-10 11:21:49 -07:00
Wesley W. TerpstraandMegan Wachs e5ac0f717f tilelink2: split isolation gates by direction 2016-10-07 12:03:43 -07:00
Wesley W. TerpstraandGitHub 6ec2e7c5bd tilelink2: Legacy should preserve the access size (#378) 
* tilelink2: Legacy should preserve the access size
* Legacy: extract missing size information for TL1 Puts
 2016-10-03 17:25:31 -07:00
Wesley W. TerpstraandGitHub 72e8c6f589 Merge pull request #379 from ucb-bar/axi-prefactor 
Axi prefactor
 2016-10-03 16:49:37 -07:00
Wesley W. Terpstra f05298d9bc tilelink2: move general-purpose code out of tilelink2 package 2016-10-03 16:22:28 -07:00
Wesley W. Terpstra c85e42a303 tilelink2: Nodes should accept full PortParameters 
We need this for terminal clients/managers that bridge multiple
non-TL2 devices.
 2016-10-03 16:09:49 -07:00
Wesley W. TerpstraandYunsup Lee f2ca2178bf graphML: CTO's like colour 2016-10-03 15:05:45 -07:00
Wesley W. TerpstraandYunsup Lee fe0875b084 LazyModule: output final verilog Module name 2016-10-03 15:05:45 -07:00
Wesley W. TerpstraandYunsup Lee 0a4ef66894 BaseTop: record top module; more general than GraphML 2016-10-03 15:05:45 -07:00
Wesley W. TerpstraandAndrew Waterman 52c1a053ff tilelink2 RegisterRouter: test fully Decoupled behaviour 2016-10-02 02:24:02 -07:00
Wesley W. TerpstraandAndrew Waterman 422e6357a4 tilelink2 RegisterCrossing: Queues go from RV to Irrevocable 
AsyncQueue is still a Queue.
 2016-10-02 02:24:02 -07:00
Wesley W. TerpstraandAndrew Waterman 02f89fb530 RegMapper: clarify interface is DecoupledIO 2016-10-02 02:24:02 -07:00
Wesley W. TerpstraandAndrew Waterman 8a268268ad tilelink2 RegField: clarify restrictions on functions 
RegMapper is fundamentaly DecoupledIO.
Let the user take advantage of this.
Clarify that rules on data handling.
 2016-10-02 02:24:02 -07:00
Wesley W. TerpstraandAndrew Waterman bff0ffa428 tilelink2 RegisterRouter: fix output data glitches 
If a device changes a register while it's being read but not yet accepted,
this an lead to 'data' changing while 'valid' is high. A violation. The
problem is that RegMapper is fundamentally DecoupledIO. So fix it with a
Queue.
 2016-10-02 02:24:02 -07:00
Wesley W. TerpstraandGitHub 0ebab0976a tilelink2 Isolation: add enable signal (#368) 2016-09-30 04:54:40 -07:00
Wesley W. TerpstraandGitHub 891a253bee Merge pull request #367 from ucb-bar/tl2-isolation 
Tl2 isolation
 2016-09-30 02:19:44 -07:00
Wesley W. Terpstra d3547a6193 tilelink2: Isolation gate insertion module 2016-09-30 01:50:33 -07:00
Wesley W. Terpstra 9b0654be52 tilelink2 Crossing: helpful constructor objects 2016-09-30 01:48:47 -07:00
Wesley W. Terpstra 80f7bb49e3 tilelink2: helper objects operate on OutwardNodes 2016-09-30 01:39:35 -07:00
Wesley W. TerpstraandGitHub 8730887baa Merge pull request #364 from ucb-bar/tl2-async-nodes 
Tl2 async nodes
 2016-09-29 18:18:31 -07:00
Wesley W. Terpstra 6d8c965f04 tilelink2 Crossing: cut the crossing between clock domains 2016-09-29 17:35:10 -07:00
Wesley W. Terpstra 20f42a8762 tilelink2: reuse the halves of the AsyncQueue 2016-09-29 17:35:08 -07:00
Wesley W. Terpstra 8e4c1e567c tilelink2: add types for a TL clockless interface 2016-09-29 17:33:11 -07:00
Wesley W. Terpstra 02ce8c2ca4 tilelink2 Nodes: rename RootNode => BaseNode 2016-09-29 17:33:11 -07:00
Wesley W. Terpstra 754fcf9831 tilelink2: rename BaseNode to SimpleNode 2016-09-29 17:33:11 -07:00
Wesley W. Terpstra cfdb8ca797 tilelink2 LazyModule: remove obsolete connect method 2016-09-29 17:33:11 -07:00
Wesley W. Terpstra f2e438833c tilelink2 Nodes: generalize a node into inner and outer halves 
This lets us create nodes which transform from one bus to another.
 2016-09-29 17:33:11 -07:00
Wesley W. TerpstraandHenry Cook 3926cb936b rocketchip: add pbus width and AMO With classes (#357) 2016-09-27 15:52:13 -07:00
Wesley W. TerpstraandAndrew Waterman eaea138d0d tilelink2: don't use chisel3 namespace (#355) 2016-09-27 14:44:26 -07:00
Wesley W. TerpstraandHenry Cook 357d06ac9c tilelink2 WidthWidget: Gets must have their mask adjusted (#353) 
The mask of a Get should also be converted.

This manifested as a bug when going from 32=>64 bits. A large Get
could end up with mask that was not full.
 2016-09-27 14:06:02 -07:00
Wesley W. TerpstraandGitHub d9e209365d Tl2 addr width0 (#346) 
* tilelink2 Edges: add accessor methods for address and addr_{hi,lo}

* tilelink2: use addr_lo instead of relying on truncation

Truncation can mess up if the width should be 0, but IS 1.
 2016-09-26 17:00:03 -07:00
Wesley W. TerpstraandGitHub 72c205b54f tilelink2 AddressSet: add .misaligned(low, size) helper method (#345) 
This helps devices with misaligned ranges still connect to TL2.
 2016-09-26 16:01:09 -07:00
Wesley W. TerpstraandYunsup Lee dd9558f45d rocketchip: generate GraphML output 2016-09-26 14:35:46 -07:00
Wesley W. TerpstraandYunsup Lee 1773eb4405 tilelink2 LazyModule: output GraphML of the bus 2016-09-26 14:35:46 -07:00
Wesley W. TerpstraandYunsup Lee 35da9320bc tilelink2 Nodes: expose connectivity in RootNode 2016-09-26 14:35:46 -07:00
Wesley W. TerpstraandGitHub 14cd39e045 rocketchip: rename identically names devices with _%d (#340) 
* rocketchip: rename identically names devices with _%d

If you connect two devices with the same name in TL2 (totally ok there),
when they get put into the TL1 addrmap, one gets silently overwritten.
This renames the second occurance as _1, third as _2, and so on...

* junctions: blow if duplicates add to addrmap
 2016-09-26 13:05:49 -07:00
Wesley W. TerpstraandGitHub d787bae0d0 tilelink2 Xbar: decouple ready from valid (#338) 
This moves the Xbar from using custom code to using the Arbiter.
The arbiter has better ready-valid decoupling.
 2016-09-23 16:24:29 -07:00
Wesley W. TerpstraandYunsup Lee d175bb314d Periphery: make bus width and arithmetic atomics configurable (#337) 2016-09-23 15:25:58 -07:00
Wesley W. TerpstraandGitHub 47843d8ec1 tilelink2: maxLgSize should be accurate (#332) 2016-09-22 22:06:22 -07:00
Wesley W. TerpstraandGitHub 7ee79efc15 Merge pull request #333 from ucb-bar/tl2-api-changes 
Tl2 api changes
 2016-09-22 21:20:27 -07:00
Wesley W. Terpstra c5706afc11 RegField: remove obsolete split method 
This is now natively supported by the regmap(...) invocation.
 2016-09-22 20:52:47 -07:00
Wesley W. Terpstra fc44151f10 RegField: add name and description fields 
In the future we can generate interesting documentation and headers.
 2016-09-22 20:52:46 -07:00
Wesley W. Terpstra 5e34b313ee RegMapper: regmap(...) now takes BYTE addresses 
If a device has configurable bus-width, we need a stable way of
enumerating registers. The byte offset stays unchanged.

This change also makes it possible to put an arbitrary number of RegFields
starting at some address which are then chopped up into appropriately bus-
sized registers.
 2016-09-22 20:52:46 -07:00
Wesley W. Terpstra 972ca06729 RegField: remove RegField.bytes; it was dangerous 
The implementation unconditionally drove the register.
This made it incompatible with drivers from the device itself.
Besides, writing only parts of a register at a time is ultra-shady.
 2016-09-22 20:52:46 -07:00
Wesley W. Terpstra a421469754 tilelink2: change adapters to use TLAdapter(params, defaults)(node) 
This API makes it much more readable when you have multiple adapters
combined into a single line. The arguments for each adapter stay
beside the adapter.

For example, this:
  peripheryBus.node := TLWidthWidget(TLBuffer(TLAtomicAutomata()(TLHintHandler(legacy.node))), legacy.tlDataBytes)
becomes this:
  peripheryBus.node := TLWidthWidget(legacy.tlDataBytes)(TLBuffer()(TLAtomicAutomata()(TLHintHandler()(legacy.node))))
 2016-09-22 20:52:46 -07:00
Wesley W. Terpstra a3e88fa13a tilelink2 Atomics: optimize the sign-extension circuit 2016-09-22 15:18:54 -07:00
Wesley W. Terpstra 9f1f6fc61f Comparator: tolerate mismatched data when it is undefined 2016-09-22 15:18:54 -07:00
Wesley W. Terpstra ed038678ef tilelink2 Fuzzer: work around for firrtl/verilator performance issue 
Big Vec()s cause very slow compilation.
 2016-09-22 15:18:54 -07:00
Wesley W. Terpstra 1e7480b6fc tilelink2 Monitor: work around for firrtl/verilator performance issue 
Big Vec()s cause problems for these tools.
 2016-09-22 15:18:54 -07:00
Wesley W. Terpstra ec2030df31 tilelink2 Legacy: convert TL1 atomic operand size 2016-09-22 15:18:54 -07:00
Wesley W. Terpstra 0a3718881f rocketchip: re-enable testing of atomics 2016-09-22 15:18:54 -07:00
Wesley W. Terpstra e5da3eb8bb tilelink2 Atomics: support arithmetic atomics 2016-09-22 15:18:54 -07:00
Wesley W. Terpstra 5b80fe5b51 tilelink2 Atomics: support Logical AMOs 2016-09-22 15:18:54 -07:00
Wesley W. Terpstra 4066fbe18f tilelink2 RAMModel: exploit latency to remove bypass 2016-09-22 15:18:54 -07:00
Wesley W. Terpstra e0ade8c5a9 tilelink2 Atomics: exploit minLatency to eliminate bypass 2016-09-22 15:18:54 -07:00
Wesley W. Terpstra 3bb2580223 tilelink2 Monitor: detect minLatency violations 2016-09-22 15:18:54 -07:00
Wesley W. Terpstra 2b24c4b1b4 tilelink2: most adapters can wipe away latency 2016-09-22 15:18:54 -07:00
Wesley W. Terpstra c115913624 tilelink2 Buffer: increase the minLatency on ports 2016-09-22 15:18:54 -07:00
Wesley W. Terpstra 05beb20dc4 tilelink2: specify the minLatency for SRAM+RR 2016-09-22 15:18:54 -07:00
Wesley W. Terpstra 44277c1db3 tilelink2 Parameters: include a minLatency parameter for optimization 2016-09-22 15:18:54 -07:00
Wesley W. Terpstra cf39c32b0e tilelink2 Fuzzer: test Atomics 2016-09-22 15:18:53 -07:00
Wesley W. Terpstra 2b9403633d tilelink2 RAMModel: support (by ignoring) atomics 2016-09-22 15:18:53 -07:00
Wesley W. Terpstra ce204f604a tilelink2 AtomicAutomata: prototype flow control complete 2016-09-22 15:18:53 -07:00
Wesley W. Terpstra 42b10356fa tilelink2: add a general-purpose Arbiter 2016-09-22 15:18:53 -07:00
Wesley W. Terpstra 7636e772c8 tilelink2 Fuzzer: only generate legal atomics 2016-09-22 15:18:53 -07:00
Wesley W. Terpstra f5d604d8f8 tilelink2 Parameters: poison ports with unsafe atomics 
We need to detect if an AtomicAutomata's output ever gets mixed
with some other source of operations.
 2016-09-22 15:18:53 -07:00
Wesley W. Terpstra d1151e2f0f tilelink2 Nodes: split connect into eager and lazy halves 2016-09-22 15:18:50 -07:00
Wesley W. Terpstra 684072023f tilelink2 Monitor: make it a LazyModule in the hierarchy 2016-09-22 15:14:20 -07:00
Wesley W. Terpstra def497861b tilelink2 Bundles: add 1-way snoop bundles 2016-09-22 15:14:20 -07:00
Wesley W. Terpstra 69a1f8cd1f tilelink2 Monitor: detect if sources are mishandled 2016-09-22 15:14:19 -07:00
Wesley W. TerpstraandGitHub 3f3defb130 Merge pull request #329 from ucb-bar/fragmenter 
tilelink2 Fragmenter: Mask low bits of D channel addr_lo
 2016-09-22 14:42:55 -07:00
Wesley W. TerpstraandGitHub aa956c0108 Merge pull request #312 from ucb-bar/tl2-cheap-address-decode 
Tl2 cheap address decode
 2016-09-17 17:37:03 -07:00
Wesley W. Terpstra 9817a00ed9 tilelink2: Fuzzer should check address validity before injection 2016-09-17 17:07:21 -07:00
Wesley W. Terpstra b11839f5a1 tilelink2: differentiate fast/safe address lookup cases 2016-09-17 17:04:18 -07:00
Wesley W. Terpstra b4baae4214 tilelink2: minimize Xbar decode logic 2016-09-17 16:14:25 -07:00