Andrew Waterman
4f4b990a4f
fix null hub store ack bug
2012-03-10 15:19:12 -08:00
Yunsup Lee
44ff22a26f
vector exception handler now handles prefetches correctly
2012-03-10 12:54:36 -08:00
Andrew Waterman
7eb73c325e
fix signedness of zero fmul results
...
We were using the FMA unit to compute rs1 * rs2 + 0.0 for fmul,
which incorrectly computes +0.0 when rs1 * rs2 == -0.0. Now we
add -0.0 if rs1*rs2 is negative.
2012-03-10 00:21:51 -08:00
Andrew Waterman
e3a68848e0
fix D$ critical paths and fix verilog build
2012-03-09 20:02:51 -08:00
Henry Cook
e591d83e91
Fixed global_xact_id propagation bug
2012-03-09 11:05:44 -08:00
Henry Cook
2014db41bd
Special cased NTILES == 1 due to log2up revision
2012-03-09 11:04:58 -08:00
Henry Cook
9319130483
Special cased NTILES == 1 due to log2up revision
2012-03-09 11:04:58 -08:00
Andrew Waterman
85504f0ddc
fix bug in fence.i and improve test
2012-03-09 03:26:05 -08:00
Andrew Waterman
766bac88f8
refactor D$ writebacks and flushes
...
MSHRs now arbitrate for writebacks and handle flushes.
2012-03-09 02:55:46 -08:00
Andrew Waterman
2607153b67
Merge branch 'master' of github.com:ucb-bar/riscv-rocket
2012-03-09 02:08:55 -08:00
Andrew Waterman
3a72ace057
Merge branch 'master' of github.com:ucb-bar/riscv-rocket
2012-03-09 02:08:55 -08:00
Andrew Waterman
ff2e47f380
Merge branch 'master' of github.com:ucb-bar/riscv-rocket
2012-03-09 02:08:55 -08:00
Yunsup Lee
a1b30282dd
major refactoring on vector exception interface
2012-03-09 01:09:22 -08:00
Yunsup Lee
8acbe98f53
change how fence.*.cv works, now control processor stalls on the fence instruction
2012-03-08 23:32:31 -08:00
Henry Cook
22726ae646
icache and htif now obey require_ack field of TransactionReply. Avoids extraneous TransactionFinish on prefetcher-supplied icache data
2012-03-08 18:47:32 -08:00
Henry Cook
2df5c19f13
Added require_ack field to TransactionReply bundle
2012-03-08 18:07:44 -08:00
Henry Cook
4d2e7172f6
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
35c4bd4084
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
Henry Cook
788ad327da
Fixed dependency queue bug in Broadcast Hub
2012-03-08 11:36:10 -08:00
Henry Cook
7f43dee0c9
PriorityEncoder apply() no longer has recursive depth param
2012-03-08 01:04:26 -08:00
Andrew Waterman
5a7c5772a8
clearly distinguish PPN and cache tag
2012-03-07 23:11:17 -08:00
Andrew Waterman
df6ac34821
coherence hub fixes
2012-03-07 21:03:44 -08:00
Andrew Waterman
941873bad1
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
Henry Cook
7deff5fbe2
Broadcast hub bug fixes for load uncached mem req and store uncached xact rep
2012-03-07 11:40:49 -08:00
Andrew Waterman
c09eeb7fd2
fix D$ next-state logic
...
it was using the CPU command from the wrong pipeline stage,
which was a don't-care with ThreeStateIncoherence.
2012-03-07 01:42:08 -08:00
Andrew Waterman
7929600874
change D$ to use FourStateCoherence protocol
...
instead of ThreeStateIncoherence.
2012-03-07 01:26:35 -08:00
Andrew Waterman
a0c9452b86
change D$ to use FourStateCoherence protocol
...
instead of ThreeStateIncoherence.
2012-03-07 01:26:35 -08:00
Andrew Waterman
6e2610b0ad
fix Mux1H for bundles
2012-03-06 23:38:36 -08:00
Yunsup Lee
81dcb194d3
new vector exception interface
2012-03-06 22:39:15 -08:00
Henry Cook
35ffb80911
unified coherence trait functions
2012-03-06 17:33:11 -08:00
Henry Cook
47a2097507
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
3dd404dcf4
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
c0ed010bc9
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
Henry Cook
962e5a54af
Added store dependency queues to BroadcastHub. Minor improvements to utils.
2012-03-06 15:54:41 -08:00
Andrew Waterman
499c5b4a2e
automatically infer MEM_TAG_BITS
2012-03-06 15:49:28 -08:00
Andrew Waterman
012b991ffe
implement transaction finish messages
2012-03-06 15:48:08 -08:00
Andrew Waterman
6e16b04ada
implement transaction finish messages
2012-03-06 15:48:08 -08:00
Yunsup Lee
dba99e07a9
set MEM_TAG_BITS to 5 when HAVE_VEC is true, since NMSHR=4
2012-03-06 08:54:21 -08:00
Andrew Waterman
5f33ab24b0
fix merge conflict
...
oops :(
2012-03-06 02:02:53 -08:00
Andrew Waterman
1024a460f2
support memory transaction aborts
2012-03-06 00:35:02 -08:00
Andrew Waterman
5f12990dfb
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
950b5cd900
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