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2319 Commits

Author SHA1 Message Date
Megan Wachs
64d3731e45 RegFieldDesc: don't put characters into names that need to be sanitized 2018-02-15 13:25:06 -08:00
Megan Wachs
197699b93a Debug: don't need to fully populate flags array 2018-02-15 13:23:51 -08:00
Wesley W. Terpstra
fa412246b3 Error: don't be an exception wrt. caching 
Prior to this PR, the error device was allowed to be cached by
multiple actors despite never probing any of them. This is a
pretty unusual set of properties that has caused us trouble
several times now in the past.

Let's instead put the Error device into one of two very well
established categories: a straight-up MMIO device or a tracked
memory region.
 2018-02-14 23:02:55 -08:00
Megan Wachs
de91672e9a RegFieldDesc: simplify the output RegFieldDesc JSON to just a list of reg fields 2018-02-12 08:32:52 -08:00
Megan Wachs
7bf0121f07 PLIC: correct some descriptions 2018-02-12 08:31:29 -08:00
Megan Wachs
08acbe1a29 RegFieldDesc: Clean up both descriptions and JSON presentations 2018-02-11 23:57:57 -08:00
Megan Wachs
5ab4204e8a RegField: the JSON will just leave things out of type None 2018-02-11 22:51:36 -08:00
Megan Wachs
3b44f380d8 TLRegMapper: emit a JSON file describing the register fields 2018-02-11 22:51:36 -08:00
Megan Wachs
256f8ffc6b Clint: Annotate regmap with RegFieldDesc 2018-02-11 21:33:09 -08:00
Megan Wachs
718c88a8f9 PLIC: Annotate regmap with RegFieldDescs 2018-02-11 21:05:17 -08:00
Megan Wachs
13b120fb01 Debug: Annotate regmaps with RegFieldDescs 2018-02-10 20:11:24 -08:00
Megan Wachs
7abf6e1c8a RegMapper: Update cover props to use new RegFieldDesc objects 2018-02-10 13:17:38 -08:00
Megan Wachs
4ab1585a78 Register Field: Add a more verbose description object 
Add versions of the RegField functions to take it in, and
update Example device to use it.
 2018-02-10 13:17:18 -08:00
Henry Cook
fe277cf6f0
Merge branch 'master' into auto-plusargs 2018-02-06 18:38:44 -08:00
Andrew Waterman
9f6d586e8c
Add PLIC covers (#1229) 
* Add another FPU hazard cover

* Add some PLIC covers
 2018-02-06 17:33:33 -08:00
Andrew Waterman
efc6c9cbd3 Let user of CSRFile decide when to set tval 
I also renamed badaddr to tval (the correct name).
 2018-02-06 14:05:03 -08:00
Andrew Waterman
a59fc3bdaa Teach MulDiv to do either mul-only or div-only by setting unroll=0 2018-02-06 14:03:17 -08:00
Andrew Waterman
69441930b5 Rationalize ALU function encoding 
MULHSU and MULHU should match their ISA funct3 encodings to slightly
reduce HW cost.
 2018-02-06 14:00:37 -08:00
solomatnikov
5294523551
Keep io.cpu.s1_data for visibility (#1218) 2018-01-31 14:31:42 -08:00
Henry Cook
7dad486707 util: updates to internal Generator API 2018-01-30 15:19:37 -08:00
Henry Cook
bd50a1a4bc config: remove deprecated Parameters.root 2018-01-30 11:52:44 -08:00
Henry Cook
46751bedeb config: MapParameters are back in style 2018-01-30 11:52:44 -08:00
Jacob Chang
f4853c4f63
Add cover properties to Core CSRs (#1212) 2018-01-30 00:01:19 -08:00
Andrew Waterman
b5ff853e86
Sign-extend the depc CSR (#1209) 2018-01-26 12:07:33 -08:00
Andrew Waterman
8d8e4e1399
Merge pull request #1196 from freechipsproject/interrupt-cover 
Cover all exceptions and interrupts
 2018-01-25 18:06:13 -08:00
Andrew Waterman
d2399b6d0e Cover all exceptions and interrupts 2018-01-25 16:14:56 -08:00
Jacob Chang
a749326deb
Add cover points to registers (#1208) 2018-01-24 21:37:24 -08:00
Andrew Waterman
7a0252fdfc Add some covers for FPU structural hazards 2018-01-23 16:32:03 -08:00
Andrew Waterman
a2ca82f92c Add VM covers 2018-01-23 16:13:35 -08:00
Wesley W. Terpstra
c32150b994
ResetCatchAndSync: work also in the context of a RawModule (#1202) 2018-01-19 19:45:52 -08:00
Wesley W. Terpstra
f6f5606f8e
diplomacy: run user instantiate() method after nodes are initialized (#1198) 2018-01-18 14:57:47 -08:00
Henry Cook
5cc1411e14
Merge pull request #1199 from freechipsproject/require-messages 
rocket: add address to tlb permissions require msgs
 2018-01-18 14:53:25 -08:00
Jack Koenig
bf5dd6dac3
Replace Parameters in cover with globally setable implementation (#1200) 
This change is made in anticipation of a proper coverage library
 2018-01-18 14:45:36 -08:00
Henry Cook
24c1235500 rocket: add address to tlb permissions require msgs 2018-01-18 10:31:51 -08:00
Wesley W. Terpstra
5854fb5f7c
SourceShrinker improvements (#1197) 
* SourceShrinker: preserve FIFO guarantees of slaves

* tilelink: document that Releases can use TtoT, BtoB, and NtoN

TtoT is needed for write-through caches.
 2018-01-17 18:02:19 -08:00
Megan Wachs
338e453a91
JTAG: Use new withClock way of overriding clocks (#1072) 
* JTAG: Use new withClock way of overriding clocks

the override clock way is deprecated

* JTAG: use withClock instead of override clock

* JTAG:  extend Module for ClockedCounter

* JTAG: Don't use deprecated clock constructs

* JTAG: Remove another override_clock

* Rename "NegativeEdgeLatch"

because it's not a latch, it's just a register on the negative edge of the clock.

* Use the appropriately named NegEdgeReg

* JTAG: Rename another NegativeEdgeLatch
 2018-01-17 13:59:05 -08:00
Schuyler Eldridge
355d3b15e8 Merge 'origin/master' into auto-plusargs 2018-01-16 15:45:53 -05:00
Jacob Chang
80ca018e3a
Add cover points for BusErrorUnit (#1193) 2018-01-15 18:00:29 -08:00
Schuyler Eldridge
04af785a5f Emit plusArgs for unit tests 
Signed-off-by: Schuyler Eldridge <schuyler.eldridge@gmail.com>
 2018-01-15 17:54:40 -05:00
Schuyler Eldridge
09c1d034fa Explicitly name PlusArg serializers as *_cHeader 
Signed-off-by: Schuyler Eldridge <schuyler.eldridge@gmail.com>
 2018-01-15 17:00:12 -05:00
Schuyler Eldridge
cfd49f87c1 Use longname for ElaborationArtefact emission 
Signed-off-by: Schuyler Eldridge <schuyler.eldridge@gmail.com>
 2018-01-15 16:55:13 -05:00
Schuyler Eldridge
e52d52ae99 Link PlusArg to emulator command line options 
- adds a mutable singleton (PlusArgArtefacts) to store information
  about Rocket PlusArgs
- adds methods to PlusArgArtefacts to emit C snippets that are
  consumed by emulator.cc for correct argument parsing and help text
  generation
- emits snippets in $(CONFIG).plusArgs via BaseCoreplex-set
  ElaborationArtefacts
- modify emulator/Makefrag-verilator to include $(CONFIG).plusArgs
- cleanup help text (docstring) for existing PlusArgs

Signed-off-by: Schuyler Eldridge <schuyler.eldridge@gmail.com>
 2018-01-15 14:32:55 -05:00
Megan Wachs
5fe0bb0d6a Merge remote-tracking branch 'origin/master' into refactored_rbb 2018-01-09 21:34:14 -08:00
Henry Cook
f5211765e9
Merge pull request #1177 from freechipsproject/dont-touch-2 
Make more use of chisel3.experimental.DontTouch
 2018-01-09 15:13:55 -08:00
pentin-as
c152962642 Dual-port RAM replaced with single-port RAM for tag_array in HellaCache (#1181) 
In accordance with https://github.com/freechipsproject/chisel3/issues/752
 2018-01-09 13:06:43 -08:00
Henry Cook
15c54b1c5a tile: intSinkNode belongs in HasExternalInterrupts 2018-01-08 19:38:10 -08:00
Henry Cook
11e5b620f8 tile: disable more monitors on slave port 2018-01-08 18:42:25 -08:00
Henry Cook
5075a93e6c util: dontTouch work-around for zero width aggregates 2018-01-08 15:58:28 -08:00
Albert Huntington
7fc8337cdb
Merge pull request #1180 from freechipsproject/addrwregdesc 
Allow rwReg to pass name and description to RegField for documentation.
 2018-01-08 09:44:44 -08:00
Megan Wachs
a530646d15 Merge remote-tracking branch 'origin/master' into refactored_rbb 2018-01-08 09:11:27 -08:00
Henry Cook
4fd4ae38e3
Merge pull request #1176 from freechipsproject/fix-tl-port 
Fix TL MMIO port
 2018-01-05 20:37:44 -08:00
Megan Wachs
e6661a6982 Debug regressions: use a plusarg to enable remote bitbang. 2018-01-05 17:08:21 -08:00
Albert Huntington
8425086f98 Allow rwReg to pass name and description to RegField for documentation. 2018-01-05 16:59:58 -08:00
Megan Wachs
4449dd0baa Debug regressions: Add necessary config scripts 2018-01-05 16:03:59 -08:00
Megan Wachs
e82328336e Add in a SimJTAG to connect to OpenOCD's remote-bitbang interface. 
This is simpler than JTAGVPI and is supported better by Verilor.
It is also the same thing Spike uses.
 2018-01-05 16:02:52 -08:00
Henry Cook
b77b93b0b4 util: dontTouchPortsExcept 2018-01-05 14:06:00 -08:00
Andrew Waterman
000cde2f8a Make ErrorDevice UNCACHEABLE instead of UNCACHED 
...even though it still supports Acquire.  This avoids needing to flush
the D$ on FENCE.I because of the presence of the ErrorDevice.
 2018-01-05 14:00:42 -08:00
Andrew Waterman
ad0b9a0b1b Reduce cases in which FENCE.I must flush D$ 
Memory regions that are uncacheable or have get/put effects should not
reside in the D$, so there is no need to flush them.
 2018-01-05 13:58:14 -08:00
Henry Cook
4853d1355f rocket: dontTouch HellaCache.io.cpu.resp 2018-01-05 12:50:24 -08:00
Henry Cook
847efde385 coreplex: dontTouch the tile_inputs wire 2018-01-05 12:47:41 -08:00
Wesley W. Terpstra
f749e986cf coreplex: fix TL MMIO port example 2018-01-05 12:29:47 +01:00
Andrew Waterman
206892899f
Merge pull request #1171 from freechipsproject/fix-msb-check 
Enforce physical-address canonicalization
 2018-01-03 12:06:18 -08:00
Andrew Waterman
ee1a9485df Enforce physical-address canonicalization 
When xLen > paddrBits, enforce that physical addresses are zero-extended.
This works by checking that the _virtual_ address is _sign_-extended, then
checking that its sign is positive.
 2018-01-02 18:47:30 -08:00
Andrew Waterman
7c9a1b0265 Correctly check for virtual-address canonicalization 
The previous check was necessary but not sufficient.
 2018-01-02 18:41:25 -08:00
Henry Cook
320900f76c tile: BaseTileModule => BaseTileModuleImp 2018-01-02 17:55:54 -08:00
Henry Cook
b0e1bc3071 tile: cake reduction 
* merge HasScratchpadSlavePort into RocketTile
* merge CanHaveSharedFPUModule into BaseTileModule
 2018-01-02 17:49:08 -08:00
Henry Cook
efe7165b54 tile: BaseTile refactor, pt 2 
* 2 layer cake
* no more bundle traits, only call to IO
 2018-01-02 15:37:31 -08:00
Henry Cook
1579ddb97e tile: removed RocketTileWrapper. RocketTile now HasCrossing. 2017-12-28 14:00:13 -08:00
Henry Cook
1cd018546c tile: BaseTile refactor, pt 1 
* Make dts generation reusable across tile subclasses
* First attempt to standardize tile IO nodes and connect methods
* hartid => hartId when talking about scala Ints
 2017-12-26 11:04:15 -08:00
Henry Cook
ba6dd160a3 diplomacy: allow access to sram Device info 2017-12-22 19:00:43 -08:00
Henry Cook
d9c5ec4f7b coreplex: HasTiles supplies def tileParams 2017-12-20 17:18:55 -08:00
Henry Cook
ddaeedf2d0 coreplex: make HasTiles more generic 
HasTiles now deals with only extremely general tile IOs.
Some RocketTiles specific behavior moved into RocketCoreplex.
BaseTile now has optional LocalInterruptNode.
 2017-12-20 17:18:55 -08:00
Henry Cook
895c4b9261
Revert "ICache: stores to the ITIM have effects (shrinking valid ITIM data) (#1144)" (#1162) 
This reverts commit a542ae687e.
 2017-12-19 12:16:26 -08:00
Megan Wachs
74d9326ebc
JTAG: Revert to Chisel._ for Issue 1160 (#1161) 
* JTAG: Revert to Chisel._ for Issue 1160

* JTAG: Revert to Chisel._ for Issue 1160

* jtag: revert everything to Chisel._

* jtag: Revert all modules to Chisel._ vs chisel3, due to FIRRTL issues with chisel3 generated code
 2017-12-18 21:02:31 -08:00
Henry Cook
a31ba2ea2e
diplomacy: LazyModule factory uses ValName (#1159) 
* diplomacy: LazyModule factory uses ValName
 2017-12-18 15:40:30 -08:00
Jacob Chang
09160d0cd5
Changed label for DCache and ICache error covers + take away exclusio… (#1155) 
* Changed label for DCache and ICache error covers + take away exclusion that shouldn't be there

* rocket: add d-channel error to I$
 2017-12-13 20:16:36 -08:00
Wesley W. Terpstra
a542ae687e
ICache: stores to the ITIM have effects (shrinking valid ITIM data) (#1144) 2017-12-08 17:35:14 -08:00
Wesley W. Terpstra
c2a0319dc4
Merge pull request #1151 from freechipsproject/error-atoms 
Error atomics
 2017-12-08 17:34:55 -08:00
Wesley W. Terpstra
efc793d52e CloneModule: must be public to be used in pattern matches 2017-12-08 14:57:08 -08:00
Wesley W. Terpstra
2ca03384ec diplomacy: skip anonymous class names 2017-12-08 14:36:12 -08:00
Jack Koenig
588dacec17
Bump Chisel and Firrtl (#1134) 2017-12-08 14:22:18 -08:00
Wesley W. Terpstra
18b8a61775 Error device: require explicit control of atomic and transfer sizes 2017-12-08 13:41:09 -08:00
Wesley W. Terpstra
6a0150aad7 Error device: mark executable to support testing erroneous I$ refill 2017-12-08 12:38:06 -08:00
Andrew Waterman
676110bc1f Add cover for a1ebe6da4d 2017-12-07 21:03:42 -08:00
Andrew Waterman
a1ebe6da4d Prevent frontend deadlock fetching from uncacheable memory 
After detecting a corrupted BTB, don't speculatively update it until
the next non-speculative fetch.  This prevents the frontend from replaying
forever.
 2017-12-07 18:56:06 -08:00
Jacob Chang
ec3789b365
Add Cross Cover Property Library (#1149) 
Add cover points related to memory error to I/D Cache
 2017-12-07 18:46:10 -08:00
Andrew Waterman
5c204f98d5
When writing full words to ITIM, ECC errors are correctable (#1148) 
* When writing full words to ITIM, ECC errors are correctable

* Disable D$ tag reset state machine when using scratchpad
 2017-12-07 16:00:26 -08:00
Richard Xia
50de991f18 Fix typo in breakpoint cover property. 2017-12-04 14:04:24 -08:00
Wesley W. Terpstra
b8098d18be
diplomacy: remove the :=? operator in favour of magic :*=* (#1139) 
The reason for the :=? operator was for when you have an adapter chain
whose direction of cardinality you could not know. We used explicit
directives to tell these compositions which way to go.

Unfortunately, that makes the API leaky. You think the chain of adapters
is just one adapter, but you have to use strange Cardinality scopes to
use it. That's just bad.

The new :*=* just automagically figures it out from the graph.
 2017-12-01 18:28:37 -08:00
Wesley W. Terpstra
dedf396915
groundtest: connect the ibus to a fictitious master (#1140) 2017-12-01 18:28:24 -08:00
Henry Cook
71ddd797bf
Merge pull request #1138 from freechipsproject/cover_tag_ecc_error_during_fence_i 
Added coverage point to cover the case when ECC error happens during …
 2017-12-01 18:00:11 -08:00
Gleb Gagarin
7c2df9f0bf Cover the case when there is an ECC error in DCache data array during fence.i execution 2017-12-01 16:28:28 -08:00
Gleb Gagarin
74bd61c556 Added coverage point to cover the case when ECC error happens during fence.i execution 2017-12-01 15:50:31 -08:00
Wesley W. Terpstra
8781d2b2e7 diplomacy: provide a val name for all LazyModule constructions 2017-12-01 11:28:21 -08:00
Wesley W. Terpstra
fe8d557751 PeripheryBus: automatically disappear when not used 2017-12-01 11:26:59 -08:00
Wesley W. Terpstra
93c8010aca FrontBus: automatically disappear when not used 2017-12-01 11:26:59 -08:00
Wesley W. Terpstra
e489c4226e diplomacy: remove node arity and allow empty Nexus nodes (Xbars) 
This removes the mostly obsolete 'numIn/Out' range restrictions on nodes.
It also makes it possible to connect optional crossbars that disappear.

val x = TLXbar()
x := master
slave := x

val y = TLXbar()
x :=* y // only connect y if it gets used

This will create crossbar x, but crossbar y will disappear.
 2017-12-01 11:26:59 -08:00
Wesley W. Terpstra
6a25a3b7ac tilelink: we can have helper objects for terminal nodes now too! 
The new rule is you should have an object.apply method if you only have a
single .node.
 2017-12-01 11:26:59 -08:00
Wesley W. Terpstra
2092cb4ec8 diplomacy: reprotect Node bundles after module construction is completed 2017-12-01 11:26:59 -08:00
Wesley W. Terpstra
fdeed7bbb3 unittest: add an API for describing LazyModule unit tests 2017-12-01 11:26:59 -08:00