riscv/rocket-chip
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Author SHA1 Message Date
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
Andrew Waterman
c28d115b30 Chisel3 compatibility fix 2016-03-10 17:32:23 -08:00
Andrew Waterman
7ae44d4905 Add RV32 support 2016-03-10 17:32:00 -08:00
Andrew Waterman
82c595d11a Fix no-FPU elaboration of CSR file 2016-03-10 17:30:56 -08:00
Henry Cook
93773a4496 Refactor L2 transaction trackers to each be capable of processing Voluntary Writebacks. 
To elide several races between reading and writing the metadata array for different types of transactions, all L2XactTrackers can now sink Voluntary Releases (writebacks from the L1 in the current implementation). These writebacks are merged with the ongoing transaction, and the merging tracker supplies an acknowledgment of the writeback in addition to its ongoing activities. This change involved another refactoring of the control logic for allocating new trackers and routing incoming Acquires and Releases. BroadcastHub uses the new routing logic, but still processes all voluntary releases through the VoluntaryReleaseTracker (not a problem because there are no metadata update races).

Closes #18
Closes #20
 2016-03-10 17:14:34 -08:00
Andrew Waterman
67ad36d74a Merge pull request #69 from ucb-bar/fix-tabs 
tabs are evil
 2016-03-10 16:17:46 -08:00
Andrew Waterman
7a75a03123 tabs are evil 2016-03-10 14:18:56 -08:00
Howard Mao
3c9e63f5a5 don't make HTIF clock divider tied to backup memory 2016-03-09 14:58:20 -08:00
Andrew Waterman
3e721fe80b Merge pull request #2 from ucb-bar/chisel3 
Pass a BitPat to Lookup
 2016-03-06 04:27:52 -08:00
Palmer Dabbelt
bf06ba0d37 Pass a BitPat to Lookup 
This is the only supported type of Lookup in Chisel 3.
 2016-03-05 18:50:56 -08:00
Andrew Waterman
36f2e6504c Fix width of NastiROM rows, preventing out-of-range extraction 2016-03-03 16:57:16 -08:00
Andrew Waterman
bc15e8649e WIP on priv spec v1.9 2016-03-02 23:29:58 -08:00
Howard Mao
5e145515e1 fix some Chisel assertions 2016-03-02 14:50:49 -08:00
Henry Cook
7eef3393f1 fix bug resulting in different g_types on tail beats in L2CacheBank.io.inner.grant 2016-03-02 14:11:45 -08:00
Henry Cook
57370bdf49 first and last on HasTileLinkData 2016-03-02 14:11:39 -08:00
Colin Schmidt
9c7e5bc6c0 bump hardfloat, tools(tests & spike) for fcvt fix 2016-03-01 19:53:26 -08:00
Albert Magyar
a80b0e959d Add support for per-way cache metadata 
Adds a new cache parameter (SplitMetadata) and an associated knob.

Closes #62
 2016-03-01 13:03:24 -08:00
Palmer Dabbelt
4acdc67485 Add an assertion in the NastiIOTileLink converter 
This uses an reorder queue but doesn't check to ensure that the data it fetches
from the queue is actually in the queue before using it.  It seems that during
correct operation this never breaks, but I'm trying to get the backup memory
port working again and this assertion fails with it enabled (without the
assertion the core just gets a bogus data beat dies).

Closes #16
 2016-03-01 12:23:32 -08:00
Albert Magyar
ab30983aa9 Add support for per-way cache metadata 
Exposes new parameter field SplitMetadata to determine whether the metadata array in a particular cache is stored in a single SeqMem or with one SeqMem per way.

Closes #14
 2016-03-01 12:19:42 -08:00
Colin Schmidt
a9380a3dc1 bump hardfloat,uncore,chisel,tools(tests) for sqrt fix 2016-02-29 16:59:55 -08:00
Howard Mao
6d984273b7 finally fix all release assertions ... hopefully 2016-02-29 15:22:24 -08:00
Howard Mao
760893e448 add makefile for float_fix and comlog tools 2016-02-29 11:24:53 -08:00
Howard Mao
be8a411f9c get rid of axe submodule and move toaxe.py script to scripts 2016-02-29 10:59:19 -08:00