riscv/rocket-chip
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c1eb1f12a2
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475 Commits

Author SHA1 Message Date
Megan Wachs
c1eb1f12a2 tilelink2: Rename GPIO to Example to avoid conflicts with real GPIO devices 2016-09-08 20:02:07 -07:00
Wesley W. Terpstra
cbf0670156 tilelink2 Legacy: it's only an error if it's valid 2016-09-08 19:32:00 -07:00
Wesley W. Terpstra
60a503dc2f tilelink2 RegField: add a w1ToClear RegField 2016-09-08 14:02:49 -07:00
Wesley W. Terpstra
99b7e734cd tilelink2 Bundles: fix wrong sink width! 2016-09-08 13:47:40 -07:00
Wesley W. Terpstra
9bfd8c1cf5 TL2 WidthWidget (#258) 
* tilelink2 Narrower: support widenening and narrowing on all channels

Be extra careful with the mask transformations

We need to make sure that narrowing or widening do not cause a loss
of information about the operation. The addr_hi+(mask|addr_lo) conversions
are now 1-1, except on D, which should not matter.

* tilelink2 SRAM: work around firrtl SeqMem bug

* tilelink2 WidthWidget: renamed from Narrower (it now converts both ways)

* tilelink2 mask: fix an issue with width=1 data buses
 2016-09-08 10:38:38 -07:00
Yunsup Lee
e35e7b2ee3 Fix routing in non-contiguous MMIO regions 
This is a temporary fix, which can generate more hardware than necessary, but this is OK for now, since this code will soon be replaced with tilelink2 code.
 2016-09-07 19:28:12 -07:00
Andrew Waterman
7603b86239 Merge branch 'master' into use-companion 2016-09-07 12:56:55 -07:00
Colin Schmidt
254f49093c only use companion objects for types 2016-09-07 12:32:34 -07:00
Andrew Waterman
23d0b31615 Merge branch 'master' into tilelink2.2 2016-09-07 11:47:50 -07:00
Andrew Waterman
02a2439222 Support a degenerate PLIC with no interrupts 
Resolves #249
 2016-09-07 11:21:13 -07:00
Andrew Waterman
70cfd7ce13 Make DefaultRV32Config be RV32IMAFCS, not RV32IMC 
The latter is more the domain of TinyConfig.
 2016-09-07 01:58:25 -07:00
Andrew Waterman
a7f47f3c23 Reduce default BTB size 
The old value 62 seems to have been a typo introduced over 2 years ago
in commit 63bd0b9d2a.  The intent was to
fit the dhrystone working set (rofl) which the new value of 40 does.
 2016-09-07 01:51:27 -07:00
Andrew Waterman
9fea4c83da Add RV32F support 2016-09-07 00:05:39 -07:00
Andrew Waterman
66e9f027e0 Add MuxT to mux on Tuple2 and Tuple3 2016-09-07 00:05:38 -07:00
Andrew Waterman
511cc6c5c5 Evaluate arg to Boolean.option lazily 2016-09-07 00:05:38 -07:00
Andrew Waterman
a0dcd42e80 avoid erroneously setting tags valid during flush 2016-09-07 00:05:38 -07:00
Yunsup Lee
fb05f5a07f remove parameter ExtIOAddrMapEntries (#250) 
with the AddrMap ordering constraint relaxed, this parameter is no longer needed.
 2016-09-07 00:05:00 -07:00
Wesley W. Terpstra
d2421654c4 tilelink2: refactor address into addr_hi on ABC and addr_lo on CD 
We need addr_lo in order to properly convert widths.
As part of the refactoring, move all methods out of the Bundles
 2016-09-06 23:46:44 -07:00
Yunsup Lee
b76612f357 relax contraint on adding AddrMapEntry to AddrMap (#248) 
now you can add them in any order.  there's an explicit check at the end to figure out whether there are overlapping regions.
 2016-09-06 21:53:55 -07:00
Wesley W. Terpstra
aae4230627 tilelink2: fix bugs found by Megan in Legacy converter 2016-09-06 13:12:33 -07:00
Yunsup Lee
56d81b0034 fix configstring printout with no memory 2016-09-06 10:40:11 -07:00
Wesley W. Terpstra
54ab14cd9d tilelink2: statically optimize numBeats for simple managers 2016-09-05 22:11:03 -07:00
Wesley W. Terpstra
314d6ebd6f tilelink2: stricter TransferSizes requirements 2016-09-05 22:10:28 -07:00
Wesley W. Terpstra
56170c605c tilelink2: be more forgiving in what Legacy TL requires 2016-09-05 21:12:51 -07:00
Wesley W. Terpstra
3167539331 tilelink2: Narrower must be little-endian 2016-09-05 20:58:41 -07:00
Wesley W. Terpstra
ded246fb95 tilelink2: relax max transfer size; the real requirement is not exceeding alignment 2016-09-05 20:58:41 -07:00
Wesley W. Terpstra
cf0291061d tilelink2: fix a bug in UIntToOH1 triggered if the size was too big 2016-09-05 20:58:41 -07:00
Wesley W. Terpstra
9f45212c95 tilelink2: Fragmenter needs to update subaddress 2016-09-05 20:58:41 -07:00
Wesley W. Terpstra
757d46279e tilelink2: expand data correctly in D channel narrower 2016-09-05 20:58:41 -07:00
Wesley W. Terpstra
0faa8c4051 tilelink2: fix Xbar bug where Mux1H broke FSM if only one manager 2016-09-05 20:58:41 -07:00
Wesley W. Terpstra
a0c25880c7 tilelink2: Monitor should check mask of reconstructed request 2016-09-05 20:58:41 -07:00
Wesley W. Terpstra
df32cc3887 tilelink2: be careful; apply Andrew's masking trick everywhere 2016-09-05 20:58:41 -07:00
Wesley W. Terpstra
fb262558ee tilelink2: helper objects should pass source line from where they were invoked 2016-09-05 20:58:41 -07:00
Wesley W. Terpstra
1a081b4dd5 tilelink2: Monitor should report which TL connection was the problem 2016-09-05 20:58:41 -07:00
Wesley W. Terpstra
cb54df0a8a tilelink2: tie off unused channels 2016-09-05 20:58:41 -07:00
Wesley W. Terpstra
68e64a9859 tilelink2: clarify ready-valid use of RegisterRouter 2016-09-05 20:58:40 -07:00
Wesley W. Terpstra
e3b3543841 tilelink2: ensure RegFields don't exceed their bounds 2016-09-05 20:58:40 -07:00
Wesley W. Terpstra
8343070639 tilelink2: detect 1-bit overflow in register definitions 2016-09-05 20:58:40 -07:00
Wesley W. Terpstra
a1fc01fd6d tilelink2: prevent mapping the same register twice 2016-09-05 20:58:40 -07:00
Wesley W. Terpstra
81162a2dc9 tilelink2: support attaching a DecoupledIO directly to a register 2016-09-05 20:58:40 -07:00
Wesley W. Terpstra
6a378e79e3 tilelink2: allow 0-stage backpressure in combinational regmap 2016-09-05 20:58:40 -07:00
Wesley W. Terpstra
4746cf00ce tilelink2: move files to new uncore directory 2016-09-05 20:58:40 -07:00
Howard Mao
a7f79aa409 get rid of TileLinkMemorySelector 2016-09-04 10:55:19 -07:00
Howard Mao
f0ab6d0214 tie off finish signals in tilelink wrapper and unwrapper 2016-09-04 10:55:19 -07:00
Howard Mao
66de89c4db allow fixed priority routing in Junctions arbiters 2016-09-04 10:55:19 -07:00
Howard Mao
efe8670283 allow Serializer/Deserializer to work with arbitrary Chisel data types 2016-09-04 10:55:19 -07:00
Howard Mao
b9b79e4fb6 get rid of AtoS RTL 2016-09-04 10:55:19 -07:00
Howard Mao
f34843f1b9 fix assignment of incoherent vector 2016-09-04 10:12:16 -07:00
Yunsup Lee
a4c1942958 flatten Coreplex module hierarchy 2016-09-02 17:45:08 -07:00
Andrew Waterman
63679bb019 Add support for L1 data scratchpads instead of caches 
They fit in the same part of the address space as DRAM would be, and
are coherent (because they are not cacheable).

They are currently limited to single cores without DRAM.  We intend
to lift both restrictions, probably when we add support for
heterogeneous tiles.
 2016-09-02 16:22:07 -07:00