riscv/rocket-chip
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1091 Commits

Author SHA1 Message Date
Christopher Celio
31dd311aff [fpu] fix rounding mode bug in fdivfsqrt 2016-02-08 17:38:31 -08:00
Howard Mao
5abfd1a4ab make sure to check for region violations in DMA frontend 2016-02-03 15:40:44 -08:00
Howard Mao
78579672d3 make mtvec configurable and writeable 2016-01-29 14:51:56 -08:00
Howard Mao
7937fbf074 fix number of IOMSHRs at 1 2016-01-29 14:51:56 -08:00
Howard Mao
305185c034 send DMA requests through MMIO and get responses through CSRs 2016-01-29 14:51:56 -08:00
Andrew Waterman
58fcc6b7c6 Get rid of useless mux 2016-01-28 11:44:59 -08:00
Howard Mao
d170fcd913 DecoupledHelper is now imported from junctions 2016-01-21 15:38:43 -08:00
Andrew Waterman
52d6b0b1a5 Improve ALU QoR 
Rejigger muxes; share XOR gates between ADD/SUB, XOR, and BEQ.
 2016-01-20 17:42:31 -08:00
Howard Mao
77e068c153 fix Chisel3 compat issue in SimpleHellaCacheIF 2016-01-14 22:42:44 -08:00
Howard Mao
120361226d fix more Chisel3 deprecations 2016-01-14 14:46:31 -08:00
Howard Mao
d51c127646 fix deprecation warnings in rocket.scala 2016-01-13 22:08:06 -08:00
Andrew Waterman
ae98af7077 don't mix SInt/UInt 2016-01-12 16:27:36 -08:00
Andrew Waterman
00d17abd78 Don't ignore data value when writing MIPI 2016-01-12 16:23:06 -08:00
Andrew Waterman
7bf503a275 Remove four integer/FP converters 2016-01-12 16:06:23 -08:00
Andrew Waterman
31d537c405 Add missing cloneType 2016-01-12 15:45:11 -08:00
Howard Mao
13ce91e453 fix Chisel3 compat warnings in ICache and FPU 2016-01-12 12:43:48 -08:00
Howard Mao
05b359d357 support streaming DMA in DMA frontend 2016-01-06 18:17:41 -08:00
Howard Mao
304d8b814a Implement client-side DMA controller 2015-12-16 21:24:24 -08:00
Albert Magyar
01a3447989 Remove duplicate PseudoLRU class from rocket TLB 2015-12-16 16:12:47 -08:00
Howard Mao
7690de07e1 allow icache to configure which side of the way mux gets buffered 2015-12-02 17:17:49 -08:00
Howard Mao
369ee74a2c change names of RoCC tilelink interfaces to be more sensible 2015-12-02 16:28:23 -08:00
Howard Mao
73b0263663 disconnect fpu port if no fpu-using RoCC accelerators 2015-12-01 20:41:58 -08:00
Howard Mao
dcca0b1d86 fix up FPU connection 2015-12-01 18:14:58 -08:00
Howard Mao
08f77ca90d Merge branch 'master' into rocc-fpu-port 2015-12-01 18:00:28 -08:00
Howard Mao
e76dfa55f7 change the way rocc is parameterized 2015-12-01 17:54:56 -08:00
Howard Mao
4833d41dbc make the connection of FPU ports optional per accelerator 2015-12-01 16:48:05 -08:00
Howard Mao
0b15b19381 add arbiter for FPU 2015-12-01 10:22:31 -08:00
Howard Mao
1db2da00f3 Merge branch 'master' into rocc-fpu-port 2015-11-30 19:18:58 -08:00
Howard Mao
e80340198a use implicit parameters for ALU 2015-11-30 17:35:33 -08:00
Howard Mao
9256239206 implement support for multiple RoCC accelerators 2015-11-26 12:46:01 -08:00
Howard Mao
58b0a86834 some modifications to AccumulatorExample 2015-11-26 08:48:19 -08:00
Andrew Waterman
e203b8b378 Make ALU generic for zscale 2015-11-24 19:17:07 -08:00
Andrew Waterman
5294e94794 Remove CSR back pressure ability 
We were using it for IPIs, but no longer need it.
 2015-11-24 18:28:14 -08:00
Andrew Waterman
4616db4695 Make RegFile/ImmGen usable by zscale 2015-11-24 18:27:07 -08:00
Andrew Waterman
6d1bf5c014 Use generic LoadGen/StoreGen 2015-11-24 18:13:33 -08:00
Sagar Karandikar
65632c875a Merge branch 'master' into rocc-fpu-port 2015-11-21 02:24:38 -08:00
Howard Mao
b0a06a77db fix a few Chisel3 compat issues 2015-11-20 13:33:15 -08:00
Yunsup Lee
94d2dd3053 Merge remote-tracking branch 'origin/master' into rocc-fpu-port 2015-11-16 23:29:25 -08:00
Andrew Waterman
0f092b9b59 Remove IPI network 
This is now provided via MMIO.
 2015-11-16 21:51:43 -08:00
Yunsup Lee
5e2698adbc Merge remote-tracking branch 'origin/master' into rocc-fpu-port 2015-11-14 16:44:55 -08:00
Yunsup Lee
213c1a4c81 fix fdiv/fsqrt control bug in fpu 2015-11-14 16:43:15 -08:00
Yunsup Lee
4dd097d156 Merge remote-tracking branch 'origin/master' into rocc-fpu-port 2015-11-14 14:52:13 -08:00
Yunsup Lee
3c3c946755 move to new version of hardfloat 2015-11-14 14:49:17 -08:00
Yunsup Lee
608e4b2851 Merge remote-tracking branch 'origin/master' into rocc-fpu-port 2015-11-12 20:44:25 -08:00
Howard Mao
19daee10f0 use default constructors for IOMSHR acquire construction 2015-11-12 15:54:05 -08:00
jackkoenig
1e259a55da Fix SimpleHellaCacheIF assumption about receiving rejected request back 2 cycles later 2015-11-08 21:16:31 -08:00
Yunsup Lee
df5daaa72e Merge remote-tracking branch 'origin/master' into rocc-fpu-port 2015-11-06 23:57:42 -08:00
Andrew Waterman
2f515b2af6 Reduce critical path for fdiv valid signal 2015-11-06 23:28:31 -08:00
Colin Schmidt
86d67051b2 Merge commit 'e31be75' into rocc-fpu-port 2015-10-26 16:29:51 -07:00
Yunsup Lee
c7235fecb5 further state optimization in CSRfile when not UseVM 2015-10-25 10:23:46 -07:00
Colin Schmidt
652fb393a3 Merge remote-tracking branch 'origin/master' into rocc-fpu-port 2015-10-22 16:38:28 -07:00
Henry Cook
4f8468b60f depend on external cde library 2015-10-21 18:19:23 -07:00
Colin Schmidt
942f6a7d7f Merge commit 'd1eae61970f864afe4fde8ca7f75380c70c4658f' into rocc-fpu-port 2015-10-21 17:18:20 -07:00
Colin Schmidt
97f29b1618 Merge remote-tracking branch 'origin/master' into rocc-fpu-port 2015-10-21 11:33:42 -07:00
Howard Mao
0b7c828b5d go back to using standard LockingArbiter 2015-10-21 09:15:51 -07:00
Howard Mao
c68d9f8137 make ProbeUnit state machine easier to understand 2015-10-20 23:25:23 -07:00
Henry Cook
1a1185be3f Vectorize ROCC and Tile memory interfaces 2015-10-20 15:02:24 -07:00
Colin Schmidt
2cee8c8bec Merge commit '3c3e35a56e954b35e6ceb17179ebadc52e8d9b3f' into rocc-fpu-port 2015-10-18 13:09:17 -07:00
Henry Cook
6f8997bee9 Minor refactor of StoreGen/AMOALU. 2015-10-16 19:12:46 -07:00
Henry Cook
1441590c3b add enabled field to BTBParameters 2015-10-16 19:12:39 -07:00
Henry Cook
969ecaecf8 pass parameters to BuildRoCC 2015-10-14 14:16:47 -07:00
Henry Cook
68cb54bc68 refactor tilelink params 2015-10-14 12:14:36 -07:00
Henry Cook
4508666d96 log2ceil 2015-10-06 18:22:47 -07:00
Henry Cook
8173695800 added HasAddrMapParameters 2015-10-06 18:22:40 -07:00
Henry Cook
84576650b5 Removed all traces of params 2015-10-05 21:48:05 -07:00
Henry Cook
69a4dd0a79 refactor NASTI to not use param 2015-10-02 14:20:47 -07:00
Howard Mao
19656e4abe make sure to generate release from clean coh state on probe miss 2015-09-30 16:58:18 -07:00
Andrew Waterman
833909a2b5 Chisel3 compatibility fixes 2015-09-30 14:36:26 -07:00
Andrew Waterman
a7c908cb83 Don't declare Reg inside of when 
We haven't yet decided what the Chisel3 semantics for this will be.
 2015-09-30 12:43:36 -07:00
Howard Mao
2f3d15675c fix DataArray writemask in L1D 2015-09-28 16:02:39 -07:00
Andrew Waterman
f8a7a80644 Make perf counters optional 2015-09-28 13:55:23 -07:00
Andrew Waterman
5e88ead984 Add pseudo-ops to instructions.scala 2015-09-28 11:52:27 -07:00
Andrew Waterman
b93a94597c Remove needless control logic 2015-09-27 13:31:52 -07:00
Howard Mao
4bda6b6757 fix bug in tlb refill 2015-09-26 21:27:36 -07:00
Howard Mao
6bf8f41cef make sure passthrough requests are treated as vm_enabled = false 2015-09-26 20:29:51 -07:00
Andrew Waterman
c3fff12ff0 Revert "replace remaining uses of Vec.fill" 
This reverts commit f7a0d125e83f8ca59d9913bb1db79cef5a6d344a.
 2015-09-25 17:09:06 -07:00
Andrew Waterman
0bfb2962a6 Assume coh.isRead returns true for store-conditional 
This requires an uncore update.
 2015-09-25 15:26:11 -07:00
Howard Mao
a66bdb1956 replace remaining uses of Vec.fill 2015-09-24 17:53:26 -07:00
Howard Mao
9eb988a4c6 make sure access to invalid physical address treated as exception 2015-09-22 10:11:43 -07:00
Howard Mao
16c748576a don't mux data_word_bypass between IOMSHR and cache 2015-09-22 10:10:57 -07:00
Howard Mao
d89bcd3922 modify csr file to bring in line with HTIF changes 2015-09-22 10:10:57 -07:00
Howard Mao
382faba4a6 Implement bypassing L1 data cache for MMIO 2015-09-22 10:10:57 -07:00
Andrew Waterman
e72e5a34b5 Fix storage of SP values in DP registers 
The SFMA was zero-extending the SP value to 65 bits, rather than filling
the upper 32 bits with 1s.  This meant that an FSD + FLD of that register
would not restore the value properly.

Also, minor code cleanup.
 2015-09-21 12:20:44 -07:00
Christopher Celio
76bf1da310 [commitlog] zero-extend SP write-back values 2015-09-15 16:47:26 -07:00
Scott Beamer
3b48d8569c [commitlog] don't print out writebacks to x0 2015-09-15 16:47:26 -07:00
Christopher Celio
e22bf02a80 [commitlog] CSR's cycle optionally set to instret 
- Allows debugging Rocket against Spike by having timer interrupts
    occur in the same place in the instruction stream for both.
 2015-09-15 16:47:26 -07:00
Christopher Celio
7d14abf262 [commitlog] Added privilege-level to output 2015-09-15 16:47:24 -07:00
Christopher Celio
53a02a62c8 [commitlog] Fix sp/dp bug in FPU writeback 2015-09-15 16:46:47 -07:00
Christopher Celio
d630a03857 [commitlog] Added FP instructions to the commitlog 2015-09-15 15:59:13 -07:00
Christopher Celio
91458bef1c [commitlog] Initial commit log for integer working 2015-09-15 15:59:03 -07:00
Andrew Waterman
78b2e947de Chisel3 compatibility fixes 2015-09-11 15:43:07 -07:00
Colin Schmidt
d292b6cb13 don't connect rocc-fpu-port without rocc accel 2015-09-08 14:44:12 -07:00
Colin Schmidt
cab12635f8 Merge master into rocc-fpu-port 
ebb33f2f4b658211960a4c6c023c139420c67212
 2015-08-06 08:03:10 -07:00
Andrew Waterman
1718333f83 Don't use Vec as lvalue 2015-08-05 15:29:33 -07:00
Andrew Waterman
546205b174 Chisel3 compatibility: use >>Int instead of >>UInt 2015-08-05 15:29:03 -07:00
Andrew Waterman
d4c94c6566 Chisel3 has different Vec semantics 
Vec(a, b) := c doesn't modify a and b in chisel3.
 2015-08-03 19:08:00 -07:00
Andrew Waterman
c345d72af4 Chisel3: Flip order of := and <> 2015-08-03 18:53:09 -07:00
Andrew Waterman
ef319edc84 Bits -> UInt 2015-08-02 21:03:42 -07:00
Andrew Waterman
52fc34a138 Chisel3: bulk connect is not commutative 
We haven't decided if this is a FIRRTL limitation that we should relax,
or a backwards incompatibility we're forced to live with.  Should make
for lively debate.
 2015-08-01 21:11:25 -07:00
Andrew Waterman
6c0e1e33ab Purge UInt := SInt assignments 2015-07-31 15:42:10 -07:00
Andrew Waterman
6d7cc37e87 Specify some uninferrable widths 
It's really scary that Chisel2 passed this stuff.
 2015-07-31 14:23:52 -07:00
Andrew Waterman
45cf64dbd7 Use UInt instead of Vec[Bool] 2015-07-31 04:59:45 -07:00
Andrew Waterman
57930e8a26 Chisel3 compatibility potpourri 2015-07-30 23:53:02 -07:00
Henry Cook
d2a594fb57 new junctions repo has mem size constants 2015-07-29 18:05:54 -07:00
Andrew Waterman
ce161b83e3 Chisel3 compatibility: avoid subword assignment 2015-07-29 15:03:13 -07:00
Andrew Waterman
c8c312e860 minor btb cleanup 2015-07-29 15:03:01 -07:00
Andrew Waterman
a2fdcdcaef Use Seq, not Iterable, when traversal order matters 2015-07-29 00:24:58 -07:00
Andrew Waterman
431dd2219b Another Bits -> BitPat 2015-07-28 20:13:56 -07:00
Andrew Waterman
049fc8dc24 Chisel3 compatibility: use BitPat for don't-cares 
This one's hella ugly, but for the time being, idgaf.
 2015-07-28 02:48:49 -07:00
Andrew Waterman
f2dcc40e67 Chisel3 compatibility changes 2015-07-27 12:42:20 -07:00
Andrew Waterman
ae73e3a997 Only instantiate div/sqrt unit if requested 2015-07-22 22:18:18 -07:00
Andrew Waterman
e9433ee01e Minor cleanup 2015-07-22 17:38:08 -07:00
Andrew Waterman
b4e4ceed3d Factor out some more hazard detection code 2015-07-22 15:52:13 -07:00
Andrew Waterman
bd785e7d19 Factor out common hazard detection code 2015-07-22 15:46:20 -07:00
Andrew Waterman
cc447c8110 Refactor pipeline RTL (merge ctrl + dpath into rocket) 2015-07-21 17:10:56 -07:00
Andrew Waterman
ac6e73e317 Add Wire() wrap 2015-07-15 20:24:18 -07:00
Andrew Waterman
5b7f3c3006 Don't use clone 2015-07-15 17:30:50 -07:00
Henry Cook
f5b3649b73 Merge commit 'd819fb28c3370747475d7c5f4b641723cab1fd0c' into rocc-fpu-port 2015-07-15 15:29:56 -07:00
Andrew Waterman
be2ff6dec7 Vec(Reg) -> Reg(Vec) 2015-07-15 12:33:46 -07:00
Andrew Waterman
a78e28523c Chisel3: Don't mix Mux types 2015-07-11 14:06:08 -07:00
Andrew Waterman
3233867390 Use Chisel3 SeqMem construct 2015-07-11 13:34:57 -07:00
Henry Cook
5ed2899e56 Merge pull request #10 from wsong83/fix 
L1 D$ writeback unit, reduce re-read data array
 2015-07-06 15:18:49 -07:00
Andrew Waterman
5362e2bbbd New machine-mode timer facility 2015-07-05 16:38:49 -07:00
Andrew Waterman
5e009ecc75 Fix an apparently benign PC sign-extension bug 2015-06-11 16:08:39 -07:00
Colin Schmidt
4b6cd7f3eb Merge branch 'master' of ucb-bar/rocket into rocc-fpu-port for priv1.7 2015-06-03 15:51:53 -07:00
Wei Song
4db60d9e9d code clean in dcache, no need to check the condition twice. 2015-06-02 22:06:12 +01:00
Wei Song
b6e68773fd nbdcache, writeback unit: when release is not ready and data is not ready for a beat too, no need to re-read data array. 2015-05-30 16:25:27 +01:00
Andrew Waterman
6a9390c50e Avoid spurious D$ assertion failures 
For the Rocket pipeline, this fix is needless and the problem is that the
assertion is too conservative, but I solved it this way to avoid problems
for other plausible use cases where physical and virtual accesses are
intermixed.
 2015-05-19 03:00:53 -07:00
Andrew Waterman
f460cb6c54 Update to privileged architecture 1.7 2015-05-19 02:32:21 -07:00
Andrew Waterman
254498042a Fix Split for 0-width wires 2015-05-18 18:23:17 -07:00
Andrew Waterman
d31b26c342 Clean up handling of icache's io.cpu.npc signal 2015-05-18 18:22:48 -07:00
Christopher Celio
b09832f1b5 ICache now returns the "next PC" signal. 
useful for other modules that need access to the fetch PC on the
   cycle it is sent to the SRAM.
 2015-05-07 04:53:05 -07:00
Colin Schmidt
c746ef8702 fix bug in rocc port resp for FPtoInt instructions 2015-05-04 11:20:55 -07:00
Yunsup Lee
b9fb1bb46e Merge remote-tracking branch 'origin/master' into rocc-fpu-port 2015-04-29 00:43:53 -07:00
Colin Schmidt
a37fad2e9b Merge branch 'retimeable-frontend' into rocc-fpu-port 2015-04-22 14:23:52 -07:00
Colin Schmidt
1f410ac42c move fetch buffer into frontend to allow retiming 2015-04-22 11:26:03 -07:00
Henry Cook
a315fe93c1 simplify ClientMetadata.makeRelease 2015-04-20 10:46:24 -07:00
Albert Ou
ca5b3d988d Merge branch 'master' into rocc-fpu-port 2015-04-19 15:00:00 -07:00
Henry Cook
3048f4785a HeaderlessTileLinkIO -> ClientTileLinkIO 2015-04-17 16:56:53 -07:00
Colin Schmidt
73fa28521d Merge branch 'master' of github.com:ucb-bar/rocket into rocc-fpu-port 2015-04-16 15:22:08 -07:00
Henry Cook
49f1c0aa7b moved ecc lib to uncore 2015-04-13 15:58:10 -07:00
Henry Cook
91e882e3f8 Use HeaderlessTileLinkIO 2015-04-13 15:58:10 -07:00
Christopher Celio
517d0d4b89 feedback on PR 2015-04-12 18:44:03 -07:00
Christopher Celio
4d6ebded02 Added assert to nbdcache 2015-04-11 02:58:34 -07:00
Christopher Celio
a564f08702 Rename dmem.sret signal to more accurate invalidate_lr 2015-04-11 02:26:33 -07:00
Christopher Celio
8fc2d38ca9 Removed unnecessary signal in CSRIO 2015-04-11 02:20:34 -07:00
Christopher Celio
2f88c5ca9d Renamed PCR to CSR 2015-04-11 02:16:44 -07:00
Christopher Celio
11dbd4221a Fixed front-end to support four-wide fetch. 2015-04-10 17:53:47 -07:00
Colin Schmidt
bd72db92c1 update rocc port to use fdiv/sqrt 2015-04-07 15:02:02 -07:00
Colin Schmidt
887a8de189 Merge branch 'master' of github.com:ucb-bar/rocket into rocc-fpu-port 2015-04-06 13:48:44 -07:00