Andrew Waterman
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1501e90c1f
|
interlock probe unit on tag RAW hazards
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2013-04-30 00:38:22 -07:00 |
|
Henry Cook
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e8b20f3d38
|
clear meta state of silently-dropped, clean evictee, so as to prevent a write race on meta array between probes on evictee and refill grant
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2013-04-25 17:41:04 -07:00 |
|
Andrew Waterman
|
ae7720e284
|
guarantee LR/SC forward progress
the mechanism is to block new probes for several cycles after a successful LR.
this also cleans up the MSHR <-> ProbeUnit interface slightly.
|
2013-04-07 19:27:21 -07:00 |
|
Andrew Waterman
|
e74e032c87
|
simplify MSHR memory response logic
|
2013-04-06 01:03:37 -07:00 |
|
Andrew Waterman
|
1abb9277db
|
fix LR/SC atomicity violation
note, it's still not starvation-free.
|
2013-04-05 19:13:38 -07:00 |
|
Andrew Waterman
|
8cbdeb2abf
|
add LR/SC support
|
2013-04-04 17:07:09 -07:00 |
|
Henry Cook
|
f8aebcbf8c
|
fix for cache controller bug: failing to mux correct metadata into mshr.io.old_meta on tag match
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2013-04-04 15:50:29 -07:00 |
|
Henry Cook
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95f0a688e9
|
Merge branch 'release-xacts'
Conflicts:
src/htif.scala
src/icache.scala
src/nbdcache.scala
src/tile.scala
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2013-03-20 17:37:50 -07:00 |
|
Henry Cook
|
273bd34091
|
Generalized mem arbiter, moved to uncore. Support for multiple banks when acking grants.
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2013-03-20 15:53:36 -07:00 |
|
Andrew Waterman
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ea9d0b771e
|
remove aborts; simplify probes
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2013-03-19 15:29:40 -07:00 |
|
Henry Cook
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e0361840bd
|
writebacks on release network pass asm tests and bmarks
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2013-02-28 18:11:40 -08:00 |
|
Andrew Waterman
|
35349d227f
|
update to new Mem style
|
2013-02-20 16:09:46 -08:00 |
|
Andrew Waterman
|
1fbc20450e
|
don't allow simultaneous reads and writes to the tag ram
|
2013-01-24 17:55:00 -08:00 |
|
Andrew Waterman
|
37ee843b2c
|
don't use reset combinationally
|
2013-01-24 17:55:00 -08:00 |
|
Andrew Waterman
|
bb6fbddf1f
|
don't probe the mshr file to inquire about refills
|
2013-01-24 17:54:59 -08:00 |
|
Rimas Avizienis
|
63060bc0a8
|
minor tweaks for eos18 tapeout (SRAM r/w port ordering, etc)
|
2013-01-23 19:27:53 -08:00 |
|
Henry Cook
|
6b00e7ff74
|
New TileLink bundle names
|
2013-01-21 17:18:23 -08:00 |
|
Henry Cook
|
a2fa3fd04d
|
Refactored packet headers/payloads
|
2013-01-15 15:50:37 -08:00 |
|
Henry Cook
|
e1225c5114
|
standardize IO naming convention
|
2013-01-07 13:41:36 -08:00 |
|
Henry Cook
|
261e14f831
|
Refactored uncore conf
|
2013-01-07 13:41:36 -08:00 |
|
Andrew Waterman
|
f5c53ce35d
|
add ecc support to d$ data rams
i haven't injected errors yet; it may well be incorrect.
|
2012-12-11 15:58:53 -08:00 |
|
Andrew Waterman
|
3f59e439ef
|
fix d$ tag raw hazard
|
2012-12-07 15:14:20 -08:00 |
|
Andrew Waterman
|
4dda38204f
|
fix d$ reset bug
|
2012-12-06 03:13:22 -08:00 |
|
Andrew Waterman
|
290d3d226c
|
fix AMO and store bypass bugs
thanks, torture tester
|
2012-12-06 02:07:52 -08:00 |
|
Andrew Waterman
|
4608660f6e
|
torture revealed a couple bugs
FP loads/stores with certain negative offsets could cause illegal rounding
mode traps, and x's were cropping up in situations that are benign in HW.
|
2012-12-04 05:57:53 -08:00 |
|
Andrew Waterman
|
90cae54ac4
|
fix D$ read/write concurrency bug
|
2012-11-27 02:42:27 -08:00 |
|
Andrew Waterman
|
608f65e716
|
don't wastefully read 2x the bits from D$ RAMs
|
2012-11-26 20:34:30 -08:00 |
|
Andrew Waterman
|
8a6ff5f9aa
|
fix D$ writeback bug
I swear I did this last week... perhaps I am finally losing it!
|
2012-11-25 19:46:48 -08:00 |
|
Andrew Waterman
|
de2f28193a
|
get rid of more global constants
|
2012-11-25 04:24:25 -08:00 |
|
Andrew Waterman
|
c036cdc1ea
|
add option for 2-cycle load-use delay
|
2012-11-24 22:01:08 -08:00 |
|
Andrew Waterman
|
2b26082132
|
use 1r1w ram for tags; merge tags & permissions
setting the dirty bit now allocates an MSHR (to reuse the existing datapath)
|
2012-11-20 04:09:26 -08:00 |
|
Andrew Waterman
|
30038bda8a
|
bypass stores to subsequent loads
since we handle subword stores as RMW operations, this occurs frequently
|
2012-11-20 01:33:32 -08:00 |
|
Yunsup Lee
|
395e4e3dd6
|
andrew'x fix for D$ corner case in writeback->abort->probe
|
2012-11-18 03:11:06 -08:00 |
|
Yunsup Lee
|
81d711e892
|
fix D$ bug; now D$ doesn't respond to prefetches
|
2012-11-17 20:06:13 -08:00 |
|
Andrew Waterman
|
29bc361d6c
|
remove global constants; disentangle hwacha a bit
|
2012-11-17 17:24:08 -08:00 |
|
Andrew Waterman
|
e68b039133
|
fix misc. D$ control bugs
|
2012-11-17 06:47:27 -08:00 |
|
Andrew Waterman
|
dad7b71062
|
provide cmd/addr with cache response
|
2012-11-16 21:26:12 -08:00 |
|
Andrew Waterman
|
cb8ac73045
|
provide store data with cache response
|
2012-11-16 21:15:13 -08:00 |
|
Andrew Waterman
|
9e010beffe
|
fix D$ refill bug
|
2012-11-16 21:05:29 -08:00 |
|
Andrew Waterman
|
8dce89703a
|
new D$ with better QoR and AMO pipelining
Vector unit is disabled because nack handling needs to be fixed.
|
2012-11-16 02:39:33 -08:00 |
|
Andrew Waterman
|
6d10115b19
|
fix D$ tag width
|
2012-11-15 16:46:39 -08:00 |
|
Yunsup Lee
|
9a02298f6f
|
andrew's fix for tlb lockup
|
2012-11-06 23:52:58 -08:00 |
|
Andrew Waterman
|
4d1ca8ba3a
|
remove more global consts; refactor DTLBs
D$ now contains DTLB. provide full VAddr with initial request.
VU now has its own DTLBs.
|
2012-11-06 08:13:44 -08:00 |
|
Andrew Waterman
|
c5b93798fb
|
factor out more global constants
|
2012-11-05 23:52:32 -08:00 |
|
Henry Cook
|
88ac5af181
|
Merged consts-as-traits
|
2012-10-16 16:32:35 -07:00 |
|
Andrew Waterman
|
fc648d13a1
|
remove old Mux1H; add implicit conversions
|
2012-10-16 02:24:37 -07:00 |
|
Henry Cook
|
8970b635b2
|
improvements to implicit RocketConfiguration parameter
|
2012-10-15 16:29:49 -07:00 |
|
Henry Cook
|
9025d0610c
|
first pass at configuration object passed as implicit parameter
|
2012-10-07 22:37:29 -07:00 |
|
Andrew Waterman
|
ed8cc4a1cf
|
eliminate D$ probe->WB critical path
|
2012-10-04 09:05:14 -07:00 |
|
Huy Vo
|
e909093f37
|
factoring out uncore into separate uncore repo
|
2012-10-01 16:08:41 -07:00 |
|