riscv/rocket-chip
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Author SHA1 Message Date
mwachs5
77a0f76289 Cleanup jtag dtm (#342) 
* debug: Clean up Debug TransportModule synchronizer

With async reset async queues, I feel its safe/cleaner
to remove the one-off "AsyncMailbox verilog black-box
and use the common primitive.

I also added some comments about correct usage of this
block. Probably the 'TRST' signal should be renamed
to make it less confusing, as it requires some processing
of the real JTAG 'TRST' signal.
 2016-09-26 11:10:27 -07:00
mwachs5
8641639873 Async rst async queue (#336) 
* crossing: use async reset

* crossings: asyncqueue needs Asynchronous reset.

* crossing: Actually enable the head of the synchronizer flop chain

* crossing: remove reset from logic. This flop will no longer be written during reset because valid will be low.

* crossing: Tidy up code  & comments
 2016-09-26 11:08:38 -07:00
Wesley W. Terpstra
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. Terpstra
d175bb314d Periphery: make bus width and arithmetic atomics configurable (#337) 2016-09-23 15:25:58 -07:00
Wesley W. Terpstra
47843d8ec1 tilelink2: maxLgSize should be accurate (#332) 2016-09-22 22:06:22 -07:00
Wesley W. Terpstra
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
Howard Mao
a1d5102da9 Merge pull request #323 from ucb-bar/unittest-config 
Factor testsuite makefrag generation out of Configs and into Generator
 2016-09-22 18:14:40 -07:00
Howard Mao
22053289ef fix typo rv64iu -> rv64ui 2016-09-22 17:33:35 -07:00
Henry Cook
91aab2fabc no commas in yml 2016-09-22 17:28:34 -07:00
Henry Cook
673efb400d Merge branch 'master' into unittest-config 2016-09-22 16:20:53 -07:00
Henry Cook
06d8140b61 Merge pull request #328 from ucb-bar/atomics 
TileLink2 Atomics
 2016-09-22 16:20:25 -07:00
Henry Cook
1e54820f8c Merge remote-tracking branch 'origin/master' into unittest-config 2016-09-22 16:03:51 -07:00
Henry Cook
411ee378de Provide a GeneratorApp object per user package. Extract RocketTestSuite from coreplex into rocketchip and provide GeneratorApp defaults for other target packages. 2016-09-22 15:59:29 -07:00
Henry Cook
391be8d740 tilelink2 RegisterRouter: minLatency is never more than 1 2016-09-22 15:51:15 -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
Henry Cook
83c08a931d [WIP] Generators for unittest and groundtest; disambiguate groundtest.TrafficGenerator 2016-09-22 14:57:18 -07:00
Wesley W. Terpstra
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
Henry Cook
47c5d1a992 [WIP] Move RocketTestSuite generation into RocketchipGenerator 2016-09-22 14:31:45 -07:00
Albert Ou
d76b762657 tilelink2 Fragmenter: Mask low bits of D channel addr_lo 
This fixes an issue where passing addr_lo through unchanged triggered
unaligned address assertions in the Monitor.
 2016-09-22 12:36:28 -07:00
Howard Mao
cd96a66ba6 replace verilog clock divider with one written in Chisel 2016-09-22 11:32:29 -07:00
Howard Mao
cbd702e48e make sure junctions and uncore unittests both run 2016-09-21 20:17:52 -07:00