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Author SHA1 Message Date
Wesley W. Terpstra
19eb9b6906 l1tol2: put a flow Q on the exits (#606) 
This Xbar connects the largest components in the design; the cores
and the L2 banks. We already have a full buffer on the core side.
However, the valid path going to the L2 comes back as a ready path.
Putting a flow Q also on the outputs of the l1tol2 cuts this path
in half at no cost to IPC.
 2017-03-23 16:28:32 -07:00
Henry Cook
055b8ba1f0 rocket: avoid LinkedHashMap.keys to preserve traversal order (#603) 2017-03-22 14:38:33 -07:00
Wesley W. Terpstra
4f78eafbdf Merge pull request #602 from ucb-bar/tl-mmio-pipeline 
TL pipeline MMIO
 2017-03-21 14:59:11 -07:00
Andrew Waterman
76f083b469 FIFOFixer: Not all D-channel messages are A-channel responses 2017-03-21 14:17:38 -07:00
Andrew Waterman
3609254e4a There's no structural hazard on MMIO store responses 
So don't stall as though there were.
 2017-03-21 14:17:32 -07:00
Yunsup Lee
5eae7e1da4 make DCache s1_nack less conservative for pipelined MMIO requests 2017-03-21 11:16:51 -07:00
Wesley W. Terpstra
4c00066746 rocket: describe dcache as two clients (fifo+cached) 2017-03-21 11:16:51 -07:00
Wesley W. Terpstra
81d717e82f coreplex: guarantee FIFO for those tiles that need it 2017-03-21 11:16:51 -07:00
Wesley W. Terpstra
198afddb4b tilelink2: add the FIFOFixer 2017-03-21 11:16:51 -07:00
Wesley W. Terpstra
c33f31dd3c tilelink2 RAMModel: weaken fifo requirement check 2017-03-21 11:16:51 -07:00
Wesley W. Terpstra
930438adba tilelink2 SourceShrinker: destroy FIFO behaviour 2017-03-21 11:16:51 -07:00
Wesley W. Terpstra
fd521c56a6 tilelink2: add client-side FIFO parameterization 2017-03-21 11:16:51 -07:00
Wesley W. Terpstra
d4c9c13fb4 Merge pull request #600 from ucb-bar/monitor-spec 
Update monitor spec
 2017-03-20 15:23:34 -07:00
Wesley W. Terpstra
4eef317e84 RegisterRouter: support devices with gaps 2017-03-20 14:49:22 -07:00
Wesley W. Terpstra
431cb41e27 tilelink2 Parameters: clarify client minLatency is B=>C, not D=>E 2017-03-20 14:49:22 -07:00
Wesley W. Terpstra
04892fea01 Monitor: support early ack 2017-03-20 14:49:19 -07:00
Wesley W. Terpstra
278f6fea24 tilelink2: define is{Request,Response} based on spec 2017-03-20 13:41:02 -07:00
Wesley W. Terpstra
778e189bba Monitor: ProbeAckData and ReleaseData may carry an error 2017-03-20 11:44:13 -07:00
Wesley W. Terpstra
48c7aed4e1 Monitor: any probe supported by the client is legal 2017-03-20 11:34:19 -07:00
Wesley W. Terpstra
5a50acfd9d Merge pull request #595 from ucb-bar/ignore-tl-c 
Ignore TL-C
 2017-03-19 18:49:11 -07:00
Wesley W. Terpstra
0c92283a61 rocket icache: tie off b ready 2017-03-19 17:18:50 -07:00
Wesley W. Terpstra
c9459fe4eb tilelink2 Xbar: don't use unnecessary ports 2017-03-19 17:02:24 -07:00
Wesley W. Terpstra
7971947d6c tilelink2 Monitor: don't inspect bits if valid is forbidden 2017-03-19 16:34:23 -07:00
Wesley W. Terpstra
a4ca424a22 AHBToTL: finally get the error signal right? (#594) 2017-03-18 22:24:20 -07:00
Wesley W. Terpstra
d4272db067 travis: only run 4 jobs at once (#593) 
We can only run 4 at a time; 5 causes the test time to double.
In the past we had a 50minute build deadline, but that's fixed.
 2017-03-18 04:14:50 -07:00
Wesley W. Terpstra
f6daa782d3 AHBToTL: fix the order of updates to d_pause (#592) 2017-03-17 19:34:40 -07:00
Megan Wachs
dcc9827ab4 Rename Prci.scala to Clint.scala (#591) 
The internals of this were renamed to CoreplexLocalInterrupter, so changing the top level name to match.
 2017-03-17 15:36:10 -07:00
Wesley W. Terpstra
db55a1d755 Fragmenter: fix a bug when underlying device supports larger bursts (#589) 2017-03-17 11:00:49 -07:00
Wesley W. Terpstra
eb953c40f0 Merge pull request #587 from ucb-bar/ahb-fix 
ahb: rewrote TLToAHB to avoid retracting requests on stall
 2017-03-16 20:55:39 -07:00
Wesley W. Terpstra
9b5b3279a6 AHBToTL: don't report error during idle cycles 2017-03-16 18:18:29 -07:00
Wesley W. Terpstra
5efd38bf97 apb: put both aFlow options under regression 2017-03-16 15:36:14 -07:00
Wesley W. Terpstra
882a7ff8ff TLToAPB: use the now standard aFlow parameter name 2017-03-16 15:34:59 -07:00
Wesley W. Terpstra
e31b84af33 axi4: use common BufferParams 2017-03-16 15:32:17 -07:00
Wesley W. Terpstra
ca2c709d29 TLBuffer: move TLBufferParams to diplomacy.BufferParams 2017-03-16 15:19:36 -07:00
Wesley W. Terpstra
778c8a5c97 ToAHB: appease AHB VIP 2017-03-16 15:17:05 -07:00
Wesley W. Terpstra
963d244094 unittest: try both aFlow settings of TLToAHB 2017-03-16 15:13:57 -07:00
Wesley W. Terpstra
604a164b97 TLToAHB: rename parameter to aFlow 2017-03-16 15:10:54 -07:00
Wesley W. Terpstra
bb49575368 ahb: rewrote TLToAHB to avoid retracting requests on stall 2017-03-16 14:36:30 -07:00
Henry Cook
4f5f686c7e bump riscv-tools (#586) 2017-03-15 18:09:26 -07:00
Wesley W. Terpstra
625919722c Merge pull request #584 from ucb-bar/ahb-in 
AHB master port support
 2017-03-14 19:28:09 -07:00
Wesley W. Terpstra
c95c2ca9c8 AHB: include bridge unit tests 2017-03-14 18:34:21 -07:00
Wesley W. Terpstra
0c5fd76089 ahb: implement a ToTL bridge 2017-03-14 18:34:17 -07:00
Wesley W. Terpstra
7f71df0925 apb: better test coverage 2017-03-14 18:34:17 -07:00
Wesley W. Terpstra
5885bf29b5 axi4: improve test harness 2017-03-14 18:34:17 -07:00
Wesley W. Terpstra
d98fd942f1 tilelink2: optimize the supportsX check circuits 2017-03-14 18:34:17 -07:00
Wesley W. Terpstra
3c5c877409 tilelink2: make TLBuffer API more flexible 2017-03-14 14:06:18 -07:00
Wesley W. Terpstra
6fc3ec3d63 tileink2: add a TestRAM; a zero-delay RAM useful for testing 
TLRAM always answers after 1 cycle. We need a RAM that answers in 0.
 2017-03-14 14:06:17 -07:00
Henry Cook
e9c694522b Merge pull request #578 from ucb-bar/priv-1.10 
Privileged architecture updates
 2017-03-14 13:20:19 -07:00
Henry Cook
bb0390630c Merge branch 'master' into priv-1.10 2017-03-13 21:40:12 -07:00
Leway Colin
1322a02637 Fixed Hasti can't handle N masters to one slave #571 (#576) 2017-03-13 20:36:53 -07:00