riscv/rocket-chip
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Author SHA1 Message Date
Christopher Celio
f526d380fd separate btb response mask from the frontend mask 
It is now the job of the pipeline to monitor the frontend's valid mask (of
instructions) and the BTB's suggested valid mask (based on the prediction it
makes). Some processors may want to ignore or override the BTB's prediction and
thus can supply their own instruction mask.
 2016-03-26 05:37:26 -07:00
Andrew Waterman
ed280fb3de Remove empty when statement (???) 2016-03-25 15:52:18 -07:00
Andrew Waterman
1ae6d09751 Slightly ameliorate D$->I$ critical path via scoreboard 2016-03-25 15:29:32 -07:00
Andrew Waterman
6c48dc3471 Use more sensible knob values for SmallConfig 2016-03-25 14:18:24 -07:00
Andrew Waterman
cce89f5fbc Bump rocket 2016-03-25 14:18:15 -07:00
Andrew Waterman
a4685a073f Don't instantiate PTW when UseVM=false 2016-03-25 14:17:25 -07:00
Andrew Waterman
27b3cca046 Discover D$, PTW port counts dynamically 
This is a generator, after all...
 2016-03-25 14:16:56 -07:00
Howard Mao
af3bc1cb79 don't use ROM for partial writemask regression 2016-03-25 14:06:06 -07:00
Howard Mao
5372f181b1 add in missing connections for regression test 2016-03-25 14:05:52 -07:00
Howard Mao
7f8f138d6a fix addPendingBitWhenPartialWritemask 2016-03-24 20:01:50 -07:00
Howard Mao
11bd15432a fix bug in RTC 2016-03-24 20:01:50 -07:00
Howard Mao
00b3908d92 git rid of reorder queue in narrower 2016-03-24 20:01:50 -07:00
Andrew Waterman
8d1ba4d1ec Remove hard-coded XLEN values from D$ 2016-03-24 14:52:12 -07:00
Andrew Waterman
d1639416cb Merge pull request #77 from ucb-bar/chisel3 
Preliminary Chisel 3 Support
 2016-03-24 12:56:36 -07:00
Palmer Dabbelt
39cf945efb Use Chisel 3 to build verilog on Travis 
Chisel 3 can't build the C++ emulator, so we currently can't have direct
support for testing RocketChip.  We can at least test to see if the
Verilog builds when run through Chisel 3, which this patch does.
 2016-03-24 12:00:13 -07:00
Palmer Dabbelt
cddfdf0929 Add CHISEL_VERSION make argument 
This allows users to specify if they want to build RocketChip against
Chisel 2 or 3.  Since Chisel 3 is now open source we can add these
submodule pointers directly to avoid a fork of upstream.
 2016-03-24 12:00:13 -07:00
Palmer Dabbelt
d697559754 Correct the polarity of the non-backup-memory HTIF 
This fails in FIRRTL because <> has polarity now.
 2016-03-24 12:00:13 -07:00
Palmer Dabbelt
7d5eac189b Bump the uncore for some Chisel3 fixes 2016-03-24 12:00:13 -07:00
Palmer Dabbelt
4744deec28 Fix the SCR file for Chisel 3 2016-03-24 12:00:13 -07:00
Palmer Dabbelt
476db6ef39 Move to a newer Scala version 
Chisel3 needs a newer version of Scala to run correctly.
 2016-03-24 12:00:13 -07:00
Palmer Dabbelt
c6e974b110 Merge pull request #30 from ucb-bar/chisel3 
Chisel 3 support
 2016-03-24 11:52:02 -07:00
Howard Mao
471f4c2695 change WriteMaskedPutBlockRegression for better bug detection 
Instead of sending puts back-to-back, separate the two puts with a get.
Also, stall a bit between each transaction. This makes sure the puts and
intermediate get are sent to the same transactor, which will cause the
data buffer to get overwritten between the two puts.
 2016-03-23 16:31:19 -07:00
Palmer Dabbelt
c9e1b72972 Don't assign SInt(-1) to a UInt 2016-03-23 16:24:27 -07:00
Howard Mao
3b0e87f42a pass CSRs through to ground test and get DMA tests working again 2016-03-22 20:18:02 -07:00
Howard Mao
7b7e954133 make sure DummyPTW does not invalidate the TLB 2016-03-22 19:59:58 -07:00
Matthew Naylor
6da45e7f26 Trace generator: updates and additions to the scripts directory. 
(1) Introduce tracegen.py, a script that invokes the emulator (built
    with TraceGenConfig), sending a SIGTERM once all cores are finished.

(2) Update toaxe.py to gather some statistics about the trace.

(3) Introduce tracestats.py, which displays the stats in a useful way.

(4) Introduce tracegen+check.py, a top-level script that generates
    traces, checks them, and emits stats.  If this commit is pulled, it
    should be done after pulling my latest groundtest commit.
 2016-03-21 15:28:15 -07:00
Palmer Dabbelt
aa22f175c3 Add cloneType methods for Chisel3 2016-03-21 13:35:02 -07:00
Palmer Dabbelt
c989ec5813 Fix the SCR file for Chisel 3 2016-03-21 11:55:40 -07:00
Palmer Dabbelt
1344d09cef Fix the SCR file for Chisel 3 2016-03-21 11:55:18 -07:00
Matthew Naylor
bda5772e98 Updates to the trace-generator: (1) Don't terminate via HTIF exit, which can cause other, unfinished, cores to be cut short. Instead emit FINISHED messsages allowing an external process to send a SIGTERM to the emulator once all cores have finished. (2) Add some support for greater address variation without having to recompile, disabled by default. (3) Generate atomic, LR/SC, and fence operations by default in addition to plain loads and stores. These changes require newer versions of files in the rocket-chip/scripts directory. I will submit a pull request for those too. 2016-03-18 12:11:11 +00:00
Henry Cook
c13b8d243d BroadcastHub race on allocating VolWBs vs Acquires 2016-03-17 18:32:35 -07:00
Henry Cook
5f3d3a0b2d Bugfix for probe flags in L2BroadcastHub 
Closes #25
 2016-03-17 16:42:40 -07:00
Henry Cook
49d82864bf Fix StoreDataQueue allocation bug in BroadcastHub 
Closes #27
 2016-03-17 12:31:18 -07:00
Colin Schmidt
b5992186df include top-level makefrag in regressions 
fixes issue with rocketchip_addons inclusion
 2016-03-16 15:52:28 -07:00
Howard Mao
e90a9dfb2b make taking max of multiple integers in config a bit easier 2016-03-16 14:35:08 -07:00
Eric Love
4fc2a14a63 Fix MIF bug that cuts off upper xact id bits 2016-03-16 13:50:30 -07:00
Eric Love
8a47c3f346 Make sure there's enough xact id bits 2016-03-16 13:49:30 -07:00
Matthew Naylor
04be438847 Avoid conflicting assigments to registers in timers. Give priority to start over stop. 2016-03-16 12:54:19 -07:00
Andrew Waterman
137b77d780 Merge pull request #4 from ucb-bar/chisel3 
Work around Chisel3's lack of 0-width wires
 2016-03-15 17:30:34 -07:00
Palmer Dabbelt
50f61687de Work around Chisel3's lack of 0-width wires 
This is super ugly, but it's necessary to get Chisel3 to compile.  Note
that this still fails simulations in Chisel3, so it might be wrong.
 2016-03-14 22:50:37 -07:00
Andrew Waterman
9dc0cbdfa4 WIP on privileged spec v1.9 2016-03-14 18:03:33 -07:00
Andrew Waterman
13dcb96b7f Update TLB interface 
n.b. no need to set mprv, since prv = S.
 2016-03-14 17:55:19 -07:00
Andrew Waterman
648437e7cb Merge pull request #70 from ucb-bar/add-rv32-support 
Add RV32 test/configuration options
 2016-03-14 17:06:39 -07:00
Eric Love
db09f310a1 Define MIFMasterTagBits as # bits a master can *use* in tag 2016-03-11 16:48:13 -08:00
Andrew Waterman
f2ded2721d Merge branch 'master' into add-rv32-support 2016-03-10 19:33:04 -08:00
Andrew Waterman
25091003af Add RV32 test/configuration options 
These won't actually work until further commits.  Rocket RV32 support
is complete, but on the priv-1.9 branch.
 2016-03-10 17:40:21 -08:00
Henry Cook
67e711844a index extraction bug 2016-03-10 17:37:40 -08:00
Palmer Dabbelt
e2185d40f6 Avoid right-shift by larger that the bit width 
FIRRTL bails out on this.  There's an outstanding bug, this is just a
workaround.  See https://github.com/ucb-bar/firrtl/issues/69
 2016-03-10 17:37:40 -08:00
Palmer Dabbelt
8c7e29eacd Avoid generating 0-width UInts 
Chisel3 requires a 1-bit width to represent UInt(0).
 2016-03-10 17:37:40 -08:00
Andrew Waterman
2eafc4c8f3 Extend AMOALU to support RV32 2016-03-10 17:32:23 -08:00