riscv/rocket-chip
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260 Commits

Author SHA1 Message Date
Andrew Waterman
51e0870e23 Separate I$ and D$ interface signals that span clock cycles 
For example, Decopuled[HellaCacheReq].bits.kill doesn't make sense,
since it doesn't come the same cycle as ready/valid.
 2016-04-01 19:30:39 -07:00
Andrew Waterman
72f7f71eb5 No need to allow finishes to be sent in s_refill_resp state 
This is a hold-over from when writebacks needed finish messages.
 2016-04-01 16:19:57 -07:00
Henry Cook
78bc18736e LRSC startvation fix: HellaCache generates its own Finish messages again. 2016-04-01 16:04:25 -07:00
Henry Cook
54dd82ff76 bugfix for WB data buffer 2016-03-31 17:53:49 -07:00
Christopher Celio
1792d01ce1 fix leaky assert in nbdcache 
Squash of #33.
 2016-03-31 15:56:14 -07:00
Andrew Waterman
1ae6d09751 Slightly ameliorate D$->I$ critical path via scoreboard 2016-03-25 15:29:32 -07:00
Andrew Waterman
8d1ba4d1ec Remove hard-coded XLEN values from D$ 2016-03-24 14:52:12 -07:00
Andrew Waterman
7ae44d4905 Add RV32 support 2016-03-10 17:32:00 -08:00
Howard Mao
7937fbf074 fix number of IOMSHRs at 1 2016-01-29 14:51:56 -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
Andrew Waterman
6d1bf5c014 Use generic LoadGen/StoreGen 2015-11-24 18:13:33 -08:00
Howard Mao
b0a06a77db fix a few Chisel3 compat issues 2015-11-20 13:33:15 -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
Henry Cook
4f8468b60f depend on external cde library 2015-10-21 18:19:23 -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
Henry Cook
6f8997bee9 Minor refactor of StoreGen/AMOALU. 2015-10-16 19:12:46 -07:00
Henry Cook
68cb54bc68 refactor tilelink params 2015-10-14 12:14:36 -07:00
Henry Cook
84576650b5 Removed all traces of params 2015-10-05 21:48:05 -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
Howard Mao
2f3d15675c fix DataArray writemask in L1D 2015-09-28 16:02:39 -07:00
Andrew Waterman
b93a94597c Remove needless control logic 2015-09-27 13:31:52 -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
382faba4a6 Implement bypassing L1 data cache for MMIO 2015-09-22 10:10:57 -07:00
Andrew Waterman
78b2e947de Chisel3 compatibility fixes 2015-09-11 15:43:07 -07:00
Andrew Waterman
546205b174 Chisel3 compatibility: use >>Int instead of >>UInt 2015-08-05 15:29:03 -07:00
Andrew Waterman
c345d72af4 Chisel3: Flip order of := and <> 2015-08-03 18:53:09 -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
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
Andrew Waterman
be2ff6dec7 Vec(Reg) -> Reg(Vec) 2015-07-15 12:33:46 -07:00
Andrew Waterman
3233867390 Use Chisel3 SeqMem construct 2015-07-11 13:34:57 -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
Henry Cook
a315fe93c1 simplify ClientMetadata.makeRelease 2015-04-20 10:46:24 -07:00
Henry Cook
3048f4785a HeaderlessTileLinkIO -> ClientTileLinkIO 2015-04-17 16:56:53 -07:00
Henry Cook
91e882e3f8 Use HeaderlessTileLinkIO 2015-04-13 15:58:10 -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