Andrew Waterman
832e56d3c7
Fix toBits/toUInt/toSInt deprecation warnings
2016-07-31 17:13:52 -07:00
Howard Mao
dcfcac9530
fix LRSC issue (RocketChip issue #86 )
...
It was possible that the result of a store-conditional could get lost if it
did not depend on the result of the corresponding load-reserved.
This was because the MSHR does not update the client state based on the
secondary requests. So the LR would acquire the line in clientExcusiveClean,
but then we would fail to update the metadata array to change the state
to clientExclusiveDirty.
The solution is to track whether a secondary acquire would cause the
line to be dirty. If so, use M_XWR instead of the primary command to
generate the update coherence state.
2016-07-26 18:41:52 -07:00
Howard Mao
2723b2f515
fix issues in SimpleHellaCacheIF and document the changes
2016-07-18 17:02:47 -07:00
Andrew Waterman
d78f1aacd0
Clean up some zero-width wire cases using UInt.extract
2016-07-14 22:08:01 -07:00
Howard Mao
f7b392306e
make sure SimpleHellaCacheIF can work with blocking DCache
2016-07-07 18:59:23 -07:00
Andrew Waterman
25fdabdd59
Don't implicitly create Vecs, since they're heavyweight
2016-07-06 01:41:31 -07:00
Howard Mao
a9e0a5e2df
changes to imports after uncore refactor
2016-06-28 14:09:31 -07:00
Andrew Waterman
60bddddfe6
Merge sptbr and sasid
2016-06-17 18:29:05 -07:00
Colin Schmidt
2c325151bf
pass invalidate_lr through simple cache interface ( #45 )
2016-06-09 17:22:36 -07:00
Andrew Waterman
51379621d6
Flush blocking D$ on FENCE.I
2016-05-31 19:27:28 -07:00
Andrew Waterman
0c50bfcfb3
Work around more zero-width wire cases
2016-05-25 21:47:48 -07:00
Wesley W. Terpstra
e19c5e5d2c
IOMSHR: support atomic operations
2016-05-24 15:00:50 -07:00
Howard Mao
f228309bd1
add assertion to make sure SimpleHellaCacheIF doesn't get exception
2016-05-20 16:30:27 -07:00
Andrew Waterman
4aef567a80
Fix MMIO bug: replay_next wasn't set
2016-05-13 17:59:53 -07:00
Albert Ou
0ff4fd0ccd
Fix IOMSHR to send finishes for stores
2016-04-30 22:20:29 -07:00
Andrew Waterman
fe8c91f620
Fix IOMSHR state machine bug
...
Sending the finish too early causes the CPU response to get dropped.
attn @zhemao
2016-04-26 15:32:25 -07:00
Andrew Waterman
d93677a343
Support larger cache sets when not using VM
2016-04-26 15:31:32 -07:00
Howard Mao
b7527268bb
use address map instead of MMIOBase to find size of memory
2016-04-21 18:44:39 -07:00
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
