riscv/rocket-chip
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740 Commits

Author SHA1 Message Date
Andrew Waterman
8103676b37 reduce physical address space to 4GB 2012-11-26 20:54:56 -08:00
Andrew Waterman
56f9b9721d treat prefetches as read requests 2012-11-20 05:38:49 -08:00
Yunsup Lee
6bd4f93f8c pull out prefetch commands from isRead 2012-11-18 03:13:17 -08:00
Andrew Waterman
3e6dc35809 issue self-probes for uncached read transactions 
this facilitates I$ coherence.  but it seems like a hack and perhaps
the mechanism should be rethought.
 2012-11-16 02:37:56 -08:00
Henry Cook
0cd0f8a9db Initial version of migratory protocol 2012-10-23 18:01:53 -07:00
Andrew Waterman
2aecb0024f UncoreConfiguration now contains coherence policy 2012-10-18 16:57:28 -07:00
Andrew Waterman
ffda0e41a9 parameterize width of MemSerdes/MemDesser 2012-10-18 16:56:36 -07:00
Henry Cook
9df5cfa552 Factored out tilelink classes 2012-10-16 14:26:33 -07:00
Henry Cook
8509cda813 Refined traits for use with rocket asserts, added UncoreConfiguration to handle ntiles 2012-10-16 13:58:18 -07:00
Henry Cook
1418604bf0 new constants organization 2012-10-15 18:52:48 -07:00
Huy Vo
08ab076217 forgot to change package + using fromBits in memserdes instead of manual unpacking 2012-10-10 15:42:39 -07:00
Huy Vo
9610622ab0 moving memserdes + slowio into src 2012-10-10 12:41:11 -07:00
Huy Vo
35f213e735 Merge branch 'master' of ../rocket-clone 2012-10-10 12:39:48 -07:00
Andrew Waterman
3973aef938 handle structural hazard on LLC tags 2012-10-09 18:04:55 -07:00
Huy Vo
916c1019af fixed memdessert unpacking 2012-10-09 13:03:17 -07:00
Huy Vo
cf8f20584e factoring out uncore into separate uncore repo 2012-10-01 16:08:41 -07:00
Huy Vo
2413763f3d henry's uncore and rocket changes for new xact types 2012-10-01 16:05:37 -07:00
Henry Cook
da6ec486f1 uncore and rocket changes for new xact types 2012-10-01 10:47:36 -07:00
Huy Vo
fa8075570a move srcs into src dir, factoring out uncore consts into consts 2012-09-27 12:59:45 -07:00
Andrew Waterman
6546dc84e2 rename queue to Queue 
fixes build with case-insensitive file system
 2012-08-08 22:11:59 -07:00
Andrew Waterman
aa7fd1f40b rename queue to Queue 
fixes build with case-insensitive file system
 2012-08-08 22:11:59 -07:00
Andrew Waterman
17dc2075dd fix some LLC control bugs 2012-08-06 17:10:04 -07:00
Andrew Waterman
115c25c34b fix some LLC control bugs 2012-08-06 17:10:04 -07:00
Andrew Waterman
875f3622af fix deadlock in coherence hub 2012-08-03 19:00:03 -07:00
Andrew Waterman
962423d2d1 fix deadlock in coherence hub 2012-08-03 19:00:03 -07:00
Andrew Waterman
e346f21725 fix control bug in LLC 
structural hazard on tag ram caused deadlock
 2012-08-03 18:59:37 -07:00
Andrew Waterman
92b7504c9a fix control bug in LLC 
structural hazard on tag ram caused deadlock
 2012-08-03 18:59:37 -07:00
Andrew Waterman
7a75334bb9 pipeline LLC further 2012-07-31 17:45:14 -07:00
Andrew Waterman
7b9cfd0b90 pipeline LLC further 2012-07-31 17:45:14 -07:00
Andrew Waterman
8db233c9b7 further pipeline the LLC 2012-07-30 20:12:11 -07:00
Andrew Waterman
85dc34df80 further pipeline the LLC 2012-07-30 20:12:11 -07:00
Yunsup Lee
4d4e28c138 remove reset pin on llc 2012-07-28 21:14:51 -07:00
Yunsup Lee
914b6b622d remove reset pin on llc 2012-07-28 21:14:51 -07:00
Yunsup Lee
465f2efca7 add reset pin to llc 2012-07-27 18:44:39 -07:00
Yunsup Lee
0a2d284d24 add reset pin to llc 2012-07-27 18:44:39 -07:00
Andrew Waterman
1ae3091261 memory system bug fixes 2012-07-26 00:05:21 -07:00
Andrew Waterman
1405718ca8 memory system bug fixes 2012-07-26 00:05:21 -07:00
Yunsup Lee
7736405726 fix bug in coherence hub, respect xact_rep.ready 2012-07-23 20:56:55 -07:00
Yunsup Lee
d0e12c13f6 fix bug in coherence hub, respect xact_rep.ready 2012-07-23 20:56:55 -07:00
Andrew Waterman
df8aff0906 don't dequeue probe queue during reset 2012-07-22 21:05:52 -07:00
Andrew Waterman
c6ac836581 don't dequeue probe queue during reset 2012-07-22 21:05:52 -07:00
Andrew Waterman
d01e70c672 decouple all interfaces between tile and top 
also, add an "incoherent" bit to tilelink to indicate no probes needed
 2012-07-17 22:55:40 -07:00
Andrew Waterman
0258dfb23f decouple all interfaces between tile and top 
also, add an "incoherent" bit to tilelink to indicate no probes needed
 2012-07-17 22:55:40 -07:00
Huy Vo
a79747a062 INPUT/OUTPUT orderring swapped 2012-07-12 18:16:57 -07:00
Huy Vo
18bc14058b INPUT/OUTPUT orderring swapped 2012-07-12 18:16:57 -07:00
Andrew Waterman
62a3ea4113 fix some LLC bugs 2012-07-11 17:56:39 -07:00
Andrew Waterman
0aa33bf909 fix some LLC bugs 2012-07-11 17:56:39 -07:00
Andrew Waterman
1ebfeeca8a add L2$ 
It still has performance bugs but no correctness bugs AFAIK.
 2012-07-10 05:23:29 -07:00
Andrew Waterman
66cf690261 add L2$ 
It still has performance bugs but no correctness bugs AFAIK.
 2012-07-10 05:23:29 -07:00
Huy Vo
166b857055 ioDecoupled -> FIFOIO, ioPipe -> PipeIO 2012-06-06 18:22:56 -07:00
Huy Vo
0c6bade592 ioDecoupled -> FIFOIO, ioPipe -> PipeIO 2012-06-06 18:22:56 -07:00
Huy Vo
9b3161920f moving util out into Chisel standard library 2012-06-06 12:51:26 -07:00
Huy Vo
f2942f79f9 moving util out into Chisel standard library 2012-06-06 12:51:26 -07:00
Huy Vo
6f2f1ba21c removing wires 2012-05-24 10:42:39 -07:00
Huy Vo
0208e9f95e removing wires 2012-05-24 10:42:39 -07:00
Andrew Waterman
f804c57bb0 reduce HTIF clock divider for now 2012-05-03 04:21:11 -07:00
Henry Cook
99bc99f2ad Fixed abort bug: removed uneeded state, added mshr guard on xact_abort.valid and xact_init.ready on same cycle 2012-04-24 17:17:42 -07:00
Henry Cook
00155f4bc4 Fixed abort bug: removed uneeded state, added mshr guard on xact_abort.valid and xact_init.ready on same cycle 2012-04-24 17:17:42 -07:00
Henry Cook
d61e6ee080 Fixed coherence bug: probe counting for single tile 2012-04-24 17:17:13 -07:00
Henry Cook
37eb1a4ae6 Fixed coherence bug: probe counting for single tile 2012-04-24 17:17:13 -07:00
Henry Cook
4a6c7dbc26 Policy determined by constants. MSI policy added. 2012-04-11 17:56:59 -07:00
Andrew Waterman
98a5d682a5 coherence mostly works now 2012-04-10 02:22:45 -07:00
Andrew Waterman
2a7d2888a7 coherence mostly works now 2012-04-10 02:22:45 -07:00
Henry Cook
1920c97066 Refactored coherence as member rather than trait. MI and MEI protocols. 2012-04-10 00:09:58 -07:00
Henry Cook
b22d7f8192 Refactored coherence as member rather than trait. MI and MEI protocols. 2012-04-10 00:09:58 -07:00
Henry Cook
5acf1d9820 defined abstract coherence traits in base trait, added Incoherent trait, cleaned up incoherent policy 2012-04-09 23:29:32 -07:00
Henry Cook
e71e3ce38f defined abstract coherence traits in base trait, added Incoherent trait, cleaned up incoherent policy 2012-04-09 23:29:32 -07:00
Henry Cook
a68f5e016d changed coherence type width names to represent max sizes for all protocols 2012-04-09 23:29:32 -07:00
Henry Cook
17a5d26c1e changed coherence type width names to represent max sizes for all protocols 2012-04-09 23:29:32 -07:00
Henry Cook
f7307ee411 changed coherence message type names 2012-04-09 23:29:31 -07:00
Henry Cook
6bc47a55b4 changed coherence message type names 2012-04-09 23:29:31 -07:00
Henry Cook
d301336c33 Refactored coherence better from uncore hub, better coherence function names 2012-04-09 23:29:31 -07:00
Henry Cook
27e3346c14 Refactored coherence better from uncore hub, better coherence function names 2012-04-09 23:29:31 -07:00
Andrew Waterman
73d8d42515 fix coherence bug with multiple probe replies 2012-04-09 21:40:35 -07:00
Andrew Waterman
257747a3a1 no dessert tonight :( 2012-03-26 23:50:09 -07:00
Andrew Waterman
25fe46dc18 remove bug from dessert 2012-03-26 14:18:57 -07:00
Andrew Waterman
4e6302fedc add dessert 2012-03-25 23:03:20 -07:00
Andrew Waterman
5a00143035 loop host.in to host.out during reset 2012-03-25 21:45:10 -07:00
Andrew Waterman
a7ebea13fc add mem serdes unit 2012-03-25 17:03:58 -07:00
Yunsup Lee
5f69c5a764 fix bug in coherence hub, specifically in abort handling logic 2012-03-20 02:16:28 -07:00
Andrew Waterman
e38114e4b0 fix coherence bug 
popping wrong store dependence queue
 2012-03-16 01:24:07 -07:00
Andrew Waterman
3129040bda use divided clk for htif. UDPATE YOUR FESVR 
by default, we now load programs via a backdoor, because otherwise
it takes too long to simulate.
 2012-03-15 18:36:51 -07:00
Andrew Waterman
77c405ffa1 use broadcast hub and coherent HTIF 2012-03-14 16:44:35 -07:00
Andrew Waterman
53cd543d3f fix minor coherence bugs 2012-03-13 19:10:54 -07:00
Andrew Waterman
53d69d3006 parameterize broadcast hub by # of tiles 2012-03-13 17:12:01 -07:00
Andrew Waterman
1258f31825 add probe unit 2012-03-13 16:43:51 -07:00
Henry Cook
23c822a82e fix hit logic for amos 2012-03-12 22:01:52 -07:00
Henry Cook
95f880da70 fixed abort bug 2012-03-12 22:01:52 -07:00
Henry Cook
cb5ce3fe73 More broadcast hub bugfixes 2012-03-11 14:17:27 -07:00
Andrew Waterman
d777f1cb24 fix null hub store ack bug 2012-03-10 15:19:12 -08:00
Henry Cook
2014db41bd Special cased NTILES == 1 due to log2up revision 2012-03-09 11:04:58 -08:00
Henry Cook
2df5c19f13 Added require_ack field to TransactionReply bundle 2012-03-08 18:07:44 -08:00
Henry Cook
ca5caf898c Hub addr comparison bug fix 2012-03-08 16:39:05 -08:00
Henry Cook
3fc94d627d Fixed dependency queue bug in Broadcast Hub 2012-03-08 11:36:10 -08:00
Andrew Waterman
df6ac34821 coherence hub fixes 2012-03-07 21:03:44 -08:00
Henry Cook
1a90e2a162 Broadcast hub bug fixes for load uncached mem req and store uncached xact rep 2012-03-07 11:40:49 -08:00
Andrew Waterman
7929600874 change D$ to use FourStateCoherence protocol 
instead of ThreeStateIncoherence.
 2012-03-07 01:26:35 -08:00
Henry Cook
35ffb80911 unified coherence trait functions 2012-03-06 17:33:11 -08:00
Henry Cook
1e02618cc8 hub code cleanup 2012-03-06 17:01:47 -08:00
Henry Cook
762f2551a7 newTransactionOnMiss() 2012-03-06 15:54:41 -08:00
Henry Cook
3874da4a4f Added store dependency queues to BroadcastHub. Minor improvements to utils. 2012-03-06 15:54:41 -08:00
Andrew Waterman
012b991ffe implement transaction finish messages 2012-03-06 15:48:08 -08:00
Andrew Waterman
1024a460f2 support memory transaction aborts 2012-03-06 00:35:02 -08:00
Henry Cook
82822dfeec Added aborted data dequeueing state machine for BroadcastHub 2012-03-05 17:44:30 -08:00
Henry Cook
a49625c114 Broadcast hub control logic bugfixes and code cleanup 2012-03-05 17:27:55 -08:00
Yunsup Lee
802f857cb6 fix store prefetch bug, it no longer occupies an entry in the sdq 2012-03-03 15:14:59 -08:00
Henry Cook
7846d5e01d Removed has_data fields from all coherence messages, increased message type names to compensate 2012-03-02 23:51:53 -08:00
Henry Cook
d76f664007 Filled out 4 state coherence functions for cache 2012-03-02 21:58:50 -08:00
Henry Cook
993341d27e Correction to probe reply w/ data handling 2012-03-02 17:20:22 -08:00
Andrew Waterman
6ad7aa5cdc flip direction of ioPipe to match ioDecoupled 2012-03-02 16:18:32 -08:00
Henry Cook
9ad4fd5814 BroadcastHub can be elaborated by C and vlsi backends 2012-03-02 12:19:27 -08:00
Yunsup Lee
bef59527d6 clean up ioDecoupled/ioPipe interface 2012-03-01 20:48:46 -08:00
Andrew Waterman
4c3f7a36ce clean up D$ store data unit 2012-03-01 19:20:00 -08:00
Henry Cook
de73eef409 Fixed elaboration errors in LockingArbiter and BoradcastHub. Fixed ioDecoupled direction error in XactTracker 2012-03-01 18:24:22 -08:00
Henry Cook
2152b0283d Made xact_rep an ioValid, removed has_data member 2012-03-01 18:24:21 -08:00
Henry Cook
4e33b68bea Unified hub ios. Fixed some hub elaboration errors. 2012-03-01 01:20:57 -08:00
Henry Cook
940027a888 Finished broadcast hub with split mem req types. Untested. 2012-02-29 17:58:15 -08:00
Andrew Waterman
8b519e7ea8 replace tile memory interface with ioTileLink 
work in progress towards coherent HTIF. for now, requests
are incoherently passed through a null coherence hub.
 2012-02-29 03:10:47 -08:00
Henry Cook
ef94f13087 Broadcast hub nears completion. Still does not handle generation/arbitration for decoupled mem reqs. 2012-02-29 02:59:27 -08:00
Henry Cook
6304aa992f Fixed race between read resps/reps and write req/reps in null hub 2012-02-29 00:44:03 -08:00
Andrew Waterman
eec369a1c7 separate memory request command and data 
also, merge some VLSI/C++ test harness functionality
 2012-02-28 19:06:23 -08:00
Henry Cook
e15284d22c Added temporary ioMemHub and made coherence hub implementations depend on it rather than ioMem 2012-02-28 17:33:32 -08:00
Henry Cook
ffc7652e01 Null coherence hub. Begin work on internal tracker logic 2012-02-27 19:10:15 -08:00
Andrew Waterman
7d331858e2 replace ioDCache with ioMem 2012-02-27 18:36:09 -08:00
Henry Cook
3393dc2d31 Added probe_req ready sigs, GenArray to Vec 2012-02-27 11:26:18 -08:00
Henry Cook
70cdf869ac probe req transactors in coherence hub 2012-02-27 09:24:33 -08:00
Henry Cook
b6e6d603cc xact init transactors in coherence hub 2012-02-27 09:24:32 -08:00
Huy Vo
e22106af3f updating rocket code to lastest version of chisel, passes assembly tests in C++ and Verilog as long as you dont use the vector unit 2012-02-26 17:24:08 -08:00
Yunsup Lee
ca2e70454e change package name and sbt project name to rocket 2012-02-25 17:09:26 -08:00
Henry Cook
8856e2b8bb More stylish bundle param names, some hub progress 2012-02-25 15:27:53 -08:00
Henry Cook
dfdcb7c696 Better foldR 2012-02-25 15:27:09 -08:00
Henry Cook
b3cf8f3f35 Better abstraction of data bundles 2012-02-25 12:57:01 -08:00
Henry Cook
1dcf25586f finished xact_finish and xact_abort transactors in coherence hub 2012-02-23 18:12:50 -08:00
Henry Cook
ffb88467db finished xact_rep transactor in coherence hub 2012-02-23 17:50:02 -08:00
Henry Cook
c3646e2e64 Improved TileIO organization, beginnings of hub implementation 2012-02-22 18:24:52 -08:00
Henry Cook
33a26424bd Refining tilelink interface 2012-02-22 12:15:47 -08:00
Henry Cook
b9c42a80c8 Added coherence message type enums 2012-02-22 12:15:47 -08:00
Henry Cook
cfb818aa97 Abstract class for coherence policies 2012-02-16 12:59:38 -08:00
Henry Cook
ecbf47fe16 Replace nbcache manipulation of meta state bits with abstracted functions 2012-02-16 10:43:40 -08:00
Henry Cook
76cacbd991 Added coherence tile function defs, with traits and constants 2012-02-16 00:16:45 -08:00