riscv/rocket-chip
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Author SHA1 Message Date
Andrew Waterman
d4fb7ad6a2 DefaultRV32Config should provide fdiv/fsqrt 
This is a holdover from before we had built the functional unit.
 2018-02-20 16:16:39 -08:00
Andrew Waterman
b487448961 Add FPUParams.fLen option, decoupled from xLen 2018-02-20 16:16:39 -08:00
Andrew Waterman
5e35015651 Minor Rocket fixes to support fLen != xLen 2018-02-20 16:16:39 -08:00
Andrew Waterman
bd29184e11 debug: get beatBytes from pbus, not XLen 2018-02-20 16:16:39 -08:00
Andrew Waterman
62f9b84439 plic: get beatBytes from pbus, not XLen 2018-02-20 16:16:39 -08:00
Andrew Waterman
52e22a1dd8 clint: get beatBytes from pbus, not XLen 2018-02-20 16:16:39 -08:00
Andrew Waterman
1b158d2caf
Merge pull request #1244 from freechipsproject/dtim-priority 
Give Rocket priority over DTIM TL port
 2018-02-20 14:19:21 -08:00
Andrew Waterman
1bac2cbdf8 Give Rocket priority over DTIM TL port 
The TL port can easily starve the processor, even at only 20% utilization,
because of a bad interaction with the pipeline.  Giving the processor
static priority is OK in practice, since <50% of instructions are loads
and stores in typical workloads.  Even if it executes 100% loads and stores,
it must eventually encounter an I$ miss, taken branch, or exception, so
even malicious code can't permanently starve the TL port.
 2018-02-20 11:23:10 -08:00
Megan Wachs
db35f45bf7
Merge pull request #1242 from freechipsproject/unnamed_reg_fix 
RegFieldDesc: fix the output produced for undescribed registers
 2018-02-16 14:27:53 -08:00
Schuyler Eldridge
135f06cefc Clarify errors, init jtag error code to zero (#1241) 
Signed-off-by: Schuyler Eldridge <schuyler.eldridge@ibm.com>
 2018-02-16 13:03:51 -08:00
Megan Wachs
5affd3bec2 RegFieldDesc: fix the output produced for undescribed registers 2018-02-16 10:24:12 -08:00
Megan Wachs
cf7cd03d64
Merge pull request #1239 from freechipsproject/reduce_debug_flags 
Reduce Debug Module "flags"
 2018-02-16 08:53:41 -08:00
Wesley W. Terpstra
bb1976552f
Merge pull request #1238 from freechipsproject/error-bifurcate 
Error: don't be an exception wrt. caching
 2018-02-15 22:19:27 -08:00
Megan Wachs
d72abb7a12
Debug: revert change to how flags are named 2018-02-15 21:49:32 -08:00
Wesley W. Terpstra
dcfbdabe60 CacheCork: better document edge conditions 2018-02-15 19:14:30 -08:00
Wesley W. Terpstra
ecd069dca4 tilelink: allow FIFO caches 
Probably not a smart thing to build, but not illegal!
 2018-02-15 19:09:37 -08:00
Wesley W. Terpstra
acecc407a5 HellaCache: we do NOT really support probe below the block size! 
If we did, you would somehow have to retain ownership of the
unprobed parts of the block, in case they happened to be dirty.
 2018-02-15 19:08:43 -08:00
Megan Wachs
c34b940d9a
ElaborationArtefacts: revert unintentional change 2018-02-15 14:23:54 -08:00
Megan Wachs
e0c3b22d61
RegFieldDesc: same string used to insert/compare 2018-02-15 14:23:27 -08:00
Megan Wachs
b95f68447f RegFieldDesc: Prevent different RegField JSONS from overwriting eachother. 2018-02-15 14:01:47 -08:00
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
e2e678d53d
Merge pull request #1183 from freechipsproject/regfield_descriptions 
more detailed RegField descriptions
 2018-02-12 14:25:06 -08:00
Megan Wachs
6f70d25ef9
Merge pull request #1184 from freechipsproject/regfield_json 
TLRegMapper: emit a JSON file describing the register fields
 2018-02-12 12:00:01 -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
1bfdfacda0
Merge pull request #1234 from grebe/bindFixup 
Use bind from global namespace
 2018-02-09 15:59:51 -08:00
Paul Rigge
ac62bf7f22 Use bind from global namespace 2018-02-09 14:16:20 -08:00
Henry Cook
9a56221566
Merge pull request #1192 from seldridge/auto-plusargs 
Automatic PlusArg for emulator.cc
 2018-02-08 18:29:31 -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
36cba65e60
Merge pull request #1228 from freechipsproject/no-mul 
Teach MulDiv to do div-only
 2018-02-06 15:38:20 -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
Colin Schmidt
c1eb795aba move sbt-launch to match project/build.properties (#1222) 
therefore *everything* is now 1.0.4
 2018-02-02 17:13:05 -08:00
Andrew Waterman
e26363a176
Don't pass deprecated -ffaaf option to firrtl (#1221) 2018-02-01 14:46:38 -08:00
Jack Koenig
18e3bf3701 Bump Firrtl (#1219) 2018-01-31 14:31:54 -08:00
solomatnikov
5294523551
Keep io.cpu.s1_data for visibility (#1218) 2018-01-31 14:31:42 -08:00
Henry Cook
ad58b37437
Merge pull request #1215 from freechipsproject/config-altermap 
Misc updates to Config and Generator APIs
 2018-01-31 14:22:17 -08:00
Henry Cook
b1fa19e801 bump hardfloat for scala 2.11.12 (#1216) 2018-01-30 20:42:36 -08:00