riscv/rocket-chip
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e652cd155b
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599 Commits

Author SHA1 Message Date
Wesley W. Terpstra
e652cd155b tilelink2: edge parameters on the same link had better match 2016-09-05 20:58:40 -07:00
Wesley W. Terpstra
c411a3e77f tilelink2: simpler sizes requirement for users to understand 2016-09-05 20:58:40 -07:00
Wesley W. Terpstra
ab998c08f1 tilelink2: save some hardware in HintHandler if no BCE 2016-09-05 20:58:40 -07:00
Wesley W. Terpstra
18e7d4cd65 tilelink2: make it possible to write Node-only adapters 2016-09-05 20:58:40 -07:00
Wesley W. Terpstra
4a401fc480 tilelink2: add a Buffer adapter to insert pipeline stages 2016-09-05 20:58:39 -07:00
Wesley W. Terpstra
50f0dee69e tilelink2: add an IdentityNode for adapters that change nothing 2016-09-05 20:58:39 -07:00
Wesley W. Terpstra
9cd2991fb3 tilelink2: AddressSet always has an assigned base address 
The consensus seems to be that TileLink should not be assigning
addresses dynamically. The reasons:

1. We can come up with another scheme for assigning addresses that is
   independent of TileLink.  This decoupling is good, because it would
   allow us to use the same mechanism for different buses in the SoC.

2. The informational flow of addresses is more likely to naturally follow
   the module hierarchy than the TileLike bus topology. Thus, it seems
   better to pass address parameterization using Module constructors.

3. Addresses are still checked by TileLink, so using a Module-centric
   flow for addresses will not pose a correctness concern.

4. An address need only be provided to a slave on its construction and
   TileLink parameterization spreads this globally. Thus, the burden to
   manually assign an address is low.
 2016-09-05 20:58:39 -07:00
Wesley W. Terpstra
ae2bc4da21 tilelink2: refactor RegField into interface and implementation 2016-09-05 20:58:39 -07:00
Wesley W. Terpstra
d6727abbbc tilelink2: rename Operations to Edges (as it only includes Edges) 2016-09-05 20:58:39 -07:00
Wesley W. Terpstra
ee3e31cb23 tilelink2: refactor TLNodes into a seperate file 2016-09-05 20:58:39 -07:00
Wesley W. Terpstra
69b3de92a8 tilelink2: decouple BaseNode from TileLink bus (so it can be reused) 2016-09-05 20:58:39 -07:00
Wesley W. Terpstra
c785375276 tilelink2: use 'connect' instead of TL-specific 'tl' to connect nodes 2016-09-05 20:58:39 -07:00
Wesley W. Terpstra
05221d7073 tilelink2: rename Bases.scala to LazyModule.scala 2016-09-05 20:58:39 -07:00
Wesley W. Terpstra
8d54ae8508 tilelink2: move TL-specific stuff out of the LazyModule base classes 2016-09-05 20:58:39 -07:00
Wesley W. Terpstra
f99a3dbec7 tilelink2: rename Factory=>LazyModule and TLModule=>LazyModuleImp 2016-09-05 20:58:39 -07:00
Wesley W. Terpstra
5b31fb81fe tilelink2: IDNode needs to be specialized for output vs. input passthrough 2016-09-05 20:58:39 -07:00
Wesley W. Terpstra
eac4d44131 tilelink2: don't apply HintHandler to B=>C by default 2016-09-05 20:58:39 -07:00
Wesley W. Terpstra
cc8112d02e tilelink2: pass E through the HintHandler 2016-09-05 20:58:39 -07:00
Wesley W. Terpstra
a72f7115ae tilelink2: optimize support testing circuits 2016-09-05 20:58:39 -07:00
Wesley W. Terpstra
f0cfd81820 tilelink2: add an adapter to add support for Hints to devices 2016-09-05 20:58:39 -07:00
Wesley W. Terpstra
5f6ca0bd0d tilelink2: rename wmask => mask since it also applies to reads 2016-09-05 20:58:39 -07:00
Wesley W. Terpstra
7347b0c4dd tilelink2: TLLegacy converts from legacy TileLink to TileLink2 2016-09-05 20:58:39 -07:00
Wesley W. Terpstra
fa472e38fb tilelink2: monitor error line legality 2016-09-05 20:58:39 -07:00
Wesley W. Terpstra
edb17d1e34 tilelink2: document allowed (and required) response messages 2016-09-05 20:58:38 -07:00
Wesley W. Terpstra
ec1f901a38 tilelink2: move error from type into Bundle and add HintAck 
We need Grant with errors too.
We also want to match response type to request type more easily.
 2016-09-05 20:58:38 -07:00
Wesley W. Terpstra
534d7f6eb6 tilelink2: implement SRAM manager 2016-09-05 20:58:38 -07:00
Wesley W. Terpstra
32894a8e20 tilelink2: transfers must never exceed 4kB 2016-09-05 20:58:38 -07:00
Wesley W. Terpstra
dd27a60daa tilelink2: use consistent in/out ports for TLSimpleFactories 2016-09-05 20:58:38 -07:00
Wesley W. Terpstra
1a87eef3e2 tilelink2: add atomic message types 2016-09-05 20:58:38 -07:00
Wesley W. Terpstra
5f7711a0c0 tilelink2: add an intermediate type for simple factories 2016-09-05 20:58:38 -07:00
Wesley W. Terpstra
967d8f108c tilelink2: support ready-valid enqueue+dequeue on register fields 2016-09-05 20:58:38 -07:00
Wesley W. Terpstra
77cf186cf0 tilelink2: make bundle parameterization reusable 2016-09-05 20:58:38 -07:00
Wesley W. Terpstra
594850eaae tilelink2: assert-fail on something more user understandable 2016-09-05 20:58:38 -07:00
Wesley W. Terpstra
dc1164a996 tilelink2: defer bundle construction until after Module base class instantiated 2016-09-05 20:58:38 -07:00
Wesley W. Terpstra
18e149098a tilelink2: connect abstract register-based modules to TileLink 2016-09-05 20:58:38 -07:00
Wesley W. Terpstra
917a9c8e5d tilelink2: forward declarations for message constructors 2016-09-05 20:58:38 -07:00
Wesley W. Terpstra
4649c42f50 tilelink2: use a new type in the signature of null-parameter Bundle methods 2016-09-05 20:58:38 -07:00
Wesley W. Terpstra
0ff33a31a4 tilelink2: add a stub SRAM manager 2016-09-05 20:58:38 -07:00
Wesley W. Terpstra
a87c2d13e2 tilelink2: include an abstract definition for register mapped devices 2016-09-05 20:58:38 -07:00
Wesley W. Terpstra
3a441d853f tilelink2: clarify that fifoId only applies to accesses (not hints) 2016-09-05 20:58:38 -07:00
Wesley W. Terpstra
4b99bd3be1 tilelink2: mask out unnecessary address bits 2016-09-05 20:58:38 -07:00
Wesley W. Terpstra
e24ba61754 tilelink2: distinguish two levels of uncacheability 2016-09-05 20:58:38 -07:00
Wesley W. Terpstra
e506309998 tilelink2: prototype crossbar implementation 2016-09-05 20:58:37 -07:00
Wesley W. Terpstra
34f65938b6 tilelink2: add a TLBundle constructor 2016-09-05 20:58:37 -07:00
Wesley W. Terpstra
1cd85ff050 tilelink2: add some bundle introspection to scaffold the xbar 2016-09-05 20:58:37 -07:00
Wesley W. Terpstra
9c62f5d9c1 tilelink2: shave off a few more firrtl monitor lines 2016-09-05 20:58:37 -07:00
Wesley W. Terpstra
af29595979 tilelink2: eliminate common subexpressions in Monitor to reduce firrtl output 2016-09-05 20:58:37 -07:00
Wesley W. Terpstra
d7e839280f tilelink2: include legal message monitor 2016-09-05 20:58:37 -07:00
Wesley W. Terpstra
492a38aedc tilelink2: only accesses can have errors (release must make forward progress) 2016-09-05 20:58:37 -07:00
Wesley W. Terpstra
6599bcb77b tilelink2: statically check Operations are remotely plausible 2016-09-05 20:58:37 -07:00