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Commit Graph

5534 Commits

Author SHA1 Message Date
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
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