riscv/rocket-chip
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2093 Commits

Author SHA1 Message Date
Wesley W. Terpstra
8b58327fa4 axi4: conversion from TL does not need beatBytes (#1051) 
We used to pack the addr_lo into user bits. We don't do that anymore.
There is thus no need to waste those bits, nor to pass that arg.
 2017-10-12 16:41:54 -07:00
Andrew Waterman
21b5367259 Expand C.UNIMP correctly (#1052) 
It was expanding to AMOADD.W, which is clearly not an illegal instruction.
 2017-10-12 14:00:14 -07:00
Henry Cook
ad243ef9f5 tilelink: cacheable resource permission now reports whether a address space could possibly be cached, even if no visible adapters make it so 2017-10-12 13:49:40 -07:00
Henry Cook
ad543e5bb6 Merge pull request #1050 from freechipsproject/uncacheable-tims 
rocket: TIMs should never be cached
 2017-10-12 13:04:00 -07:00
Wesley W. Terpstra
f82e441426 axi4: implement a diplomatic AXI4 clock crossing (#1049) 2017-10-12 00:05:45 -07:00
Henry Cook
66e4bfc2d9 rocket: TIMs should never be cached 2017-10-11 18:22:52 -07:00
Henry Cook
b64609bfe8 Merge pull request #1039 from freechipsproject/tile-crossing-params 
Improvements wrt connecting RocketTiles to SystemBus
 2017-10-11 17:12:03 -07:00
Megan Wachs
7b4c48d005 Correctly hook up the Local Interrupts into the Coreplex. Name some IntXBars 2017-10-11 15:10:50 -07:00
Henry Cook
60934ac622 coreplex: TilePortParams use BasicBusBlockers 2017-10-11 13:36:46 -07:00
Henry Cook
2dbe882e58 tilelink: add BasicBusBlocker device 2017-10-11 13:36:42 -07:00
Henry Cook
9f8e3d8879 tilelink: BusBypass can be sent to DeadlockDevice 2017-10-11 12:45:36 -07:00
Henry Cook
ec056535dc tilelink: add DeadlockDevice 2017-10-11 12:44:23 -07:00
Wesley W. Terpstra
b566ffedea system: fix DefaultFPGAConfig (#1047) 
It was missing cores. Fixes #736.
 2017-10-11 10:48:41 -07:00
Henry Cook
329a5c35d4 tilelink: unsafe cache cork discards outer d.sink 2017-10-11 00:30:51 -07:00
Henry Cook
1240cb275c coreplex: TilePortParams formatting 2017-10-11 00:29:11 -07:00
Wesley W. Terpstra
5d62c321f4 generator: create annotation file 2017-10-10 23:23:06 -07:00
Henry Cook
75345b6048 rocket: don't remove ports on top module 2017-10-10 21:28:59 -07:00
Wesley W. Terpstra
b3bdf5eca6 RegField: default argument for .bytes 2017-10-10 19:49:35 -07:00
Wesley W. Terpstra
e094b94ce5 clint: use RegField.toBytes to save some work 2017-10-10 19:49:35 -07:00
Wesley W. Terpstra
10472b4296 diplomacy: auto connect bundles in a stable order (#1045) 2017-10-10 19:41:46 -07:00
Henry Cook
1867a5b226 rocket: only cache when AcquireT is possible 2017-10-10 18:06:58 -07:00
Andrew Waterman
b2bc46471b Conditionalize some covers that are sometimes impossible (#1043) 2017-10-10 17:14:33 -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
Henry Cook
8f5f80f958 coreplex: TileSlavePortParams inject adapters into PBus 2017-10-10 15:25:08 -07:00
Henry Cook
660355004e coreplex: TileMasterPortParams inject adapters into SBus 2017-10-10 15:02:50 -07:00
Andrew Waterman
50429daef4 Merge pull request #1036 from freechipsproject/l1-cover 
Add some covers for L1 memory system
 2017-10-10 12:28:48 -07:00
Henry Cook
9026646459 coreplex: first cut at using RocketCrossingParams 2017-10-10 12:02:04 -07:00
Wesley W. Terpstra
d6766a8c68 RocketTile: make sure 'hartid' is available for traits (#1037) 2017-10-09 21:03:18 -07:00
Andrew Waterman
1474ab438d Remove extraneous signal 2017-10-09 18:33:50 -07:00
Andrew Waterman
f3825270c1 Add some covers for L1 memory system 2017-10-09 18:33:36 -07:00
Andrew Waterman
2c4009a138 Fix paddrBits < xLen && paddrBits == vaddrBits case 
Require and/or force vaddrBits to be bigger than paddrBits so there's
room to zero-extend a physical address by 1 bit, so that when the virtual
address is sign-extended, the sign is zero.
 2017-10-09 16:48:04 -07:00
Megan Wachs
0e6aa7ae9d Merge pull request #1024 from freechipsproject/jtag_coverage 
Add Coverage points for JTAG TAP
 2017-10-09 12:29:18 -07:00
Megan Wachs
0916cf1bdd JTAG Coverage: Correct jtag_reset case 2017-10-09 09:54:15 -07:00
Megan Wachs
9efe1c448e Merge remote-tracking branch 'origin/master' into HEAD 2017-10-09 09:48:38 -07:00
Andrew Waterman
986cbfb6b1 For Rockets without VM, widen vaddrBits to paddrBits 
This supports addressing a >39-bit physical address space.
 2017-10-08 01:21:47 -07:00
Andrew Waterman
a0e5a20b60 Don't route branch comparison result through ALU output mux 
This potentially mitigates a critical path, and makes the ALU usable
in processors that have dedicated branch comparators.
 2017-10-07 17:36:24 -07:00
Andrew Waterman
36c39d01e4 Factor out most of HasRocketTiles into HasTiles 2017-10-07 17:36:24 -07:00
Andrew Waterman
70a4127cb8 Factor out some of HaveRocketTiles into HaveTiles 2017-10-07 17:36:24 -07:00
Andrew Waterman
34e96c03b1 Move HCF to BaseTile 2017-10-07 17:36:24 -07:00
Andrew Waterman
71205b70cc Make RocketTileWrapper a BaseTile 2017-10-07 17:36:24 -07:00
Andrew Waterman
4645b61fd3 Decouple BaseTile from HasTileLinkMasterPort 2017-10-07 17:36:24 -07:00
Henry Styles
5498468743 FPU : simplify pipeline register generation in FMA 2017-10-05 15:18:19 -07:00
Henry Styles
7a46715cbc FPU : to assist retiming move upto first 2 register stages of into FMA 2017-10-05 15:18:04 -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
Wei Song (宋威)
81b9ac42a3 add comments to diplomacy resource. (#913) 2017-10-05 12:45:56 -07:00
Henry Cook
8da7aabd51 tile: supply hartid from RocketTileParams 
make WithNCores partial configs override rather than append more tiles
 2017-10-05 00:31:53 -07:00
Henry Cook
45581e60f0 Revert "Merge pull request #1027 from freechipsproject/dont-touch-hartid" 
This reverts commit 5232a29d7d, reversing
changes made to a2dc13669a.
 2017-10-05 00:26:44 -07:00
Andrew Waterman
5a84564203 Merge pull request #1023 from freechipsproject/csr-cleanup 
Generalize CSR file to support simpler cores
 2017-10-04 14:04:59 -07:00
Andrew Waterman
32fda51a2c Get rid of paddrBits from SystemBus (#1029) 2017-10-04 12:11:37 -07:00
Andrew Waterman
7bcf28c585 Define fetchBytes in HasCoreParams, not Frontend 
It is more generally useful.
 2017-10-03 17:34:18 -07:00
Andrew Waterman
2786e42d99 Don't register interrupts in CSRFile 
They are usually registered outside the tile in a CDC.
 2017-10-03 17:34:18 -07:00
Andrew Waterman
5cfe070932 Add option to make misa read-only 2017-10-03 17:34:18 -07:00
Andrew Waterman
09468a272b Add option to remove basic counters (mcycle/minstret) 2017-10-03 17:34:18 -07:00
Andrew Waterman
ab0821f25b Move microarchitecture-neutral params from Rocket to Core 
This makes some of the units more reusable.
 2017-10-03 17:34:18 -07:00
Andrew Waterman
190d5c50d9 Remove deprecated custom-CSR support 2017-10-03 17:34:18 -07:00
Henry Cook
5232a29d7d Merge pull request #1027 from freechipsproject/dont-touch-hartid 
Make use of the new DontTouch annotation
 2017-10-03 12:55:34 -07:00
Henry Cook
d33737802a util: add DontTouch trait with dontTouchPorts method 2017-10-02 19:36:34 -07:00
Henry Cook
aa3a18222c HellaCache: users like to peep resp.data and resp.addr 2017-10-02 19:36:30 -07:00
Henry Cook
cedfb0e784 coreplex: dontTouch the rocket_tile_inputs wire 
which contains hartid.
 2017-10-02 19:36:10 -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
Megan Wachs
9c9cb68462 JTAG Coverage: Add reset coverage points 2017-10-02 11:08:13 -07:00
Megan Wachs
a8ab06d572 JTAG: Add coverage points to the JTAG Tap 2017-10-02 11:08:13 -07:00
Jack Koenig
8891bf1b64 Bump chisel3 and firrtl, update plugin versions 
And update chisel3 code
 2017-09-29 15:44:27 -07:00
Henry Cook
547bdc2b5b diplomacy: standardize sram device resource naming (#1022) 2017-09-29 14:52:26 -07:00
Andrew Waterman
9137f54f59 Merge pull request #1020 from freechipsproject/fix-trace-insn 
Provide correct trace insn on interrupts when possible
 2017-09-27 18:47:24 -07:00
Andrew Waterman
9eaf50762e Don't report exceptions as valid instructions in the printed log 2017-09-27 16:29:42 -07:00
Wesley W. Terpstra
0a287df0f7 Merge remote-tracking branch 'origin/master' into auto-diplomacy-bundles 2017-09-27 16:28:10 -07:00
Andrew Waterman
31c5246446 Provide correct trace insn on interrupts when possible 2017-09-27 16:27:53 -07:00
Wesley W. Terpstra
feae216f05 clint: output interrupts in the correct direction 2017-09-27 15:18:42 -07:00
Henry Cook
05112b49a3 Merge branch 'master' into tl-error 2017-09-27 14:50:17 -07:00
Henry Cook
652d57291c Merge pull request #1018 from freechipsproject/refine-trace-port 
Separate interrupt bit from cause field in trace bundle
 2017-09-27 14:46:27 -07:00
Wesley W. Terpstra
9307092d14 coreplex: draw the FrontBus at the bottom and SystemBus at the top 2017-09-27 14:20:39 -07:00
Henry Cook
f48bf2ac2f rocket: connect uncrossed output interrupts 2017-09-27 12:53:19 -07:00
Andrew Waterman
78f3877e02 Trace tval field should be zero when not taking exceptions 2017-09-27 12:51:10 -07:00
Wesley W. Terpstra
e07d86aecd rocket: flip interrupt rendering so cores are on top 2017-09-27 12:46:29 -07:00
Andrew Waterman
583adeee88 Separate interrupt bit from cause field in trace bundle 2017-09-27 12:41:30 -07:00
Wesley W. Terpstra
1fda05970a rocket: move interrupt synchronizers to correct side of crossing 2017-09-27 12:33:08 -07:00
Wesley W. Terpstra
ce01ab2700 RegisterRouter: correctly create interrupts vector 2017-09-27 12:27:16 -07:00
Wesley W. Terpstra
0268959c24 rocket: move interrupt synchronizers to correct side of crossing 2017-09-27 12:02:04 -07:00
Wesley W. Terpstra
e35d3df6ea diplomacy: detect and report cycles in the diplomatic graph 2017-09-27 11:46:06 -07:00
Wesley W. Terpstra
5af08966d8 coreplex: fix WithoutTLMonitors 
closes #1017
 2017-09-27 00:57:18 -07:00
Wesley W. Terpstra
d87536ff8b diplomacy: make NodeHandle recursively composable 2017-09-26 18:47:16 -07:00
Wesley W. Terpstra
31a934bec0 coreplex: buses are now LazyModules with LazyScope 2017-09-26 14:58:56 -07:00
Wesley W. Terpstra
da40573a64 diplomacy: replace LazyModule.stack with an optional scope 2017-09-26 14:56:50 -07:00
Wesley W. Terpstra
a2b423d647 diplomacy: add LazyScope to post-hoc add children to a LazyModule 2017-09-26 14:40:45 -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
870ed3d219 diplomacy: fix the order of auto signals 2017-09-26 11:56:55 -07:00
Wesley W. Terpstra
d22ec1eddf diplomacy: beautify node signal prefixes 2017-09-26 11:56:53 -07:00
Henry Cook
9d5e96672e coreplex: clean up coherence manager attachment point 2017-09-25 18:07:51 -07:00
Wesley W. Terpstra
fef5054cec diplomacy: disambiguate names only when necessary 
If two (or more) 'auto_' things have the same name, append _0 and _1 to them.

The order of definitions is unaffected; ie:
  a => a_0
  b => b_0
  b => b_1
  c => c
  a => a_1
 2017-09-25 16:12:34 -07:00
Wesley W. Terpstra
5323cf88dd util: add Option.unzip 2017-09-25 12:06:31 -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
16969eb1f6 diplomacy: spelling fix 2017-09-22 15:01:42 -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
6fa5250e1f config: fix warning 2017-09-22 14:58:36 -07:00