riscv/rocket-chip
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78 Commits

Author SHA1 Message Date
Henry Cook
1867a5b226 rocket: only cache when AcquireT is possible 2017-10-10 18:06:58 -07:00
Henry Cook
37406706b4 coreplex: move CacheCork in front of SBus 
Continue to not allow caches to cache ROMs.
Update TinyConfig and WithStatelessBridge.
 2017-10-10 16:24:32 -07:00
Wesley W. Terpstra
bd045a3b95 tilelink: split Acquire into Acquire{Block,Perm} (#1030) 
We had planned for a while to add an 'Overwrite' message which obtains
permissions without requiring retrieval of data. This is useful whenever
a master knows it will completely replace the contents of a cache block.

Instead of calling it Overwrite, we decided to split the Acquire type.

If you AcquirePerm, you MUST Release and ProbeAck with Data.
 2017-10-05 12:49:49 -07:00
Wesley W. Terpstra
a2dc13669a Error grants (#1025) 
* CacheCork: an error Grant still says 'toT' even though it is transient

Grants with errors must be handled by a client as though no actual
permissions were obtained, so that two clients do not both end up believing
that they own a block which is only temporarily offline. However, the
Grant MESSAGE should still match the request; ie. if you did Acquire.NtoT,
the response must be Grant.toT, even though the 'error' bit signals that
the Grant actually grants no permissions.

This keeps the implementation of request-response tracking in interstitial
adapters and FSMs simple, consistent with the way multibeat errors must
include all their beats.

* Error: handle permissions properly
 2017-10-02 14:49:25 -07:00
Henry Cook
547bdc2b5b diplomacy: standardize sram device resource naming (#1022) 2017-09-29 14:52:26 -07:00
Wesley W. Terpstra
ce01ab2700 RegisterRouter: correctly create interrupts vector 2017-09-27 12:27:16 -07:00
Wesley W. Terpstra
31a934bec0 coreplex: buses are now LazyModules with LazyScope 2017-09-26 14:58:56 -07:00
Wesley W. Terpstra
a27e853101 diplomacy: move rendering properties to edges 
FlipRendering { implicit p => ... } now changes the render direction of edges.
diplomatic NodeImps can specify a default render flip using the new 'render' method.
 2017-09-26 13:24:36 -07:00
Wesley W. Terpstra
76c2aa1661 diplomacy: introduce the typing-saving SimpleNodeImp 2017-09-26 12:28:59 -07:00
Wesley W. Terpstra
60614055e3 diplomacy: eliminate some wasted IdentityNodes using cross-module refs 2017-09-25 12:06:27 -07:00
Wesley W. Terpstra
bc225a4e82 diplomacy: place Monitors inside LazyModules sinks 
We used to place Monitors at the point of the ':='.
This was problematic because the clock domain might be wrong.
Thus, we needed to shove Monitors a lot.

Furthermore, now that we have cross-module ':=', you might not even
have access to the wires at the point where ':=' is invoked.
 2017-09-22 23:36:17 -07:00
Wesley W. Terpstra
cfb7f13408 diplomacy: capture SourceInfo at point of := in Edge parameters 2017-09-22 22:25:56 -07:00
Wesley W. Terpstra
b9a2e4c243 diplomacy: API beautification 2017-09-22 15:01:42 -07:00
Wesley W. Terpstra
9217baf9d4 diplomacy: change API to auto-create node bundles => cross-module refs 2017-09-22 15:01:39 -07:00
Wesley W. Terpstra
53f6999ea8 Splitter: reuse TLCustom node instead of special diplomacy case 2017-09-22 14:58:39 -07:00
Wesley W. Terpstra
1fedabcb55 tilelink: invoke LazyModule() at point of monitor binding 2017-09-22 14:38:47 -07:00
Wesley W. Terpstra
d89ee9d9d4 nodes: grab a name on construction 2017-09-22 14:38:47 -07:00
Jacob Chang
b4fc5104d4 Add cover property API that can be refined through Config PropertyLibrary (#998) 2017-09-19 19:26:54 -07:00
Henry Cook
e50d14415e tilelink: more verbose requires 2017-09-13 11:25:42 -07:00
Henry Cook
b86f4b9bb7 config: use Field defaults over Config defaults 
Also rename some keys that had the same class name as their value's class name.
 2017-09-13 11:25:42 -07:00
Wesley W. Terpstra
6879f5bfb1 tilelink: Xbar now allows for fanout control 2017-09-07 16:03:35 -07:00
Wesley W. Terpstra
e831acba9c adapters: support bulk connections 2017-09-07 16:03:35 -07:00
Wesley W. Terpstra
06a244f9f9 diplomacy: rename {Left,Right}Star to refer to {Source,Sink}Cardinality 2017-09-07 16:03:35 -07:00
Wesley W. Terpstra
a450357744 tilelink: Monitor construction method is unconditional 
Whether or not a Monitor should be placed is decided by diplomacy.
 2017-09-07 16:03:35 -07:00
Wesley W. Terpstra
42f1ae27fc Xbar: use the IdentityModule to encourage wider fanout 2017-09-07 16:03:35 -07:00
Wesley W. Terpstra
4911a7d44f tilelink Bus: toAsyncSlaves now supports BufferChains 2017-09-07 16:03:35 -07:00
Wesley W. Terpstra
040f7e1d49 tilelink: add Bus.toSyncSlaves for easy BufferChain attachment 2017-09-07 16:03:35 -07:00
Wesley W. Terpstra
d5c6494f59 tilelink: Bus.toRationalSlaves can have a BufferChain 2017-09-07 16:03:35 -07:00
Wesley W. Terpstra
80965e8230 tilelink Buffer: use new :=? adapter API 2017-09-07 16:03:35 -07:00
Megan Wachs
dcafb5fea3 Merge remote-tracking branch 'origin/master' into async_reg 2017-09-06 11:07:19 -07:00
Megan Wachs
667d966410 TLBuffer: Create a wrapper module for TLBufferChain, to allow for more stable naming 2017-09-05 15:03:38 -07:00
Megan Wachs
c353f68dc0 buses: name dummy buffers too 2017-09-05 15:03:38 -07:00
Henry Cook
3bde9506c6 coreplex: allow buffer chains on certain bus ports 2017-09-05 15:03:36 -07:00
Megan Wachs
c99afe4c66 buses: Name all the things. 2017-08-30 17:31:42 -07:00
Henry Cook
32cb358c81 coreplex: include optional tile name for downstream name stabilization 2017-08-30 15:48:55 -07:00
Megan Wachs
a62ce0afe6 TLBuffer: Add a nodedebugstring for quick browsing of the properties of the buffer. 2017-08-29 10:36:46 -07:00
Megan Wachs
130b24355f syncregs: Use synchronizer primitives for IntXing 2017-08-24 17:39:07 -07:00
Wesley W. Terpstra
f191bb994c PatternPusher: can now expect a certain output (#952) 2017-08-11 18:10:27 -07:00
Wesley W. Terpstra
baf769f924 tilelink: add PatternPusher, a device to inject a fixed traffic pattern (#950) 2017-08-11 15:07:10 -07:00
Henry Cook
c8f8806df0 Merge pull request #932 from freechipsproject/tl-bus-delayer 
tilelink: allow insertion of TLDelayer on TLBus outward node
 2017-08-07 19:01:39 -07:00
Henry Cook
c4092dd0cc tilelink: improve entropy of bus delayer 2017-08-07 17:36:07 -07:00
Henry Cook
2910d6fa2a tilelink: make bus xbar protected so it can be suggestNamed 2017-08-07 17:30:24 -07:00
Henry Cook
c457c9cb9f tilelink: allow insertion of TLDelayer on TLBus outward node 2017-08-07 16:43:06 -07:00
Wesley W. Terpstra
f8b45564d1 tilelink: RAMModel must support source reuse 
If a multibeat response comes back, the source might be reused.
If response reordering has made the multibeat response invalid,
we need to remember this even if the valid bit is cleared on reuse.
 2017-08-07 16:01:15 -07:00
Megan Wachs
50c85f1b62 TLXbar: Allow more masters and slaves and issue a warning. 2017-08-03 15:46:06 -07:00
Megan Wachs
595415d207 TLFuzzer: Correct the number of ordered clients created 2017-08-02 15:48:21 -07:00
Megan Wachs
fc5c04ed4b TLFuzzer: Allow Ordered clients to be created as well by the fuzzer 2017-08-02 14:44:18 -07:00
Wesley W. Terpstra
d7fd9d2b82 tilelink: Filter, add another case 2017-07-31 16:51:26 -07:00
Wesley W. Terpstra
b126105230 tilelink: add TLMap to make it possible to move slaves 2017-07-31 16:39:00 -07:00
Wesley W. Terpstra
13d3ffbcaa tilelink: Filter now support arbitrary filter functions 2017-07-31 16:38:38 -07:00