Andrew Waterman
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474d321cc7
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fix meta hazard counter to reset on new meta writes
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2013-05-01 16:35:24 -07:00 |
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Andrew Waterman
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a6a88fce19
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Revert "broaden scope of s1_nack to include new probes accepted by the probe unit on that cycle"
This reverts commit b41e6bc50519631ba097ac1196737be7107295f9.
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2013-05-01 16:34:45 -07:00 |
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Andrew Waterman
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63a38e7982
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Revert "temp"
This reverts commit 73705e6ed8f98d08ce6b30fbe760de694c6563ae.
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2013-05-01 16:34:33 -07:00 |
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Henry Cook
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b6945408cb
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temp
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2013-05-01 10:24:36 -07:00 |
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Henry Cook
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722bc917d3
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broaden scope of s1_nack to include new probes accepted by the probe unit on that cycle
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2013-05-01 10:05:54 -07:00 |
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Andrew Waterman
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1501e90c1f
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interlock probe unit on tag RAW hazards
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2013-04-30 00:38:22 -07:00 |
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Henry Cook
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e8b20f3d38
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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 |
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Andrew Waterman
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50ccc20bf3
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replace RDNPC with AUIPC
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2013-04-22 04:20:15 -07:00 |
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Henry Cook
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db5a060c7d
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fix io dir
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2013-04-10 13:47:30 -07:00 |
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Andrew Waterman
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ae7720e284
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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.
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2013-04-07 19:27:21 -07:00 |
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Andrew Waterman
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e74e032c87
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simplify MSHR memory response logic
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2013-04-06 01:03:37 -07:00 |
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Andrew Waterman
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1abb9277db
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fix LR/SC atomicity violation
note, it's still not starvation-free.
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2013-04-05 19:13:38 -07:00 |
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Andrew Waterman
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8cbdeb2abf
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add LR/SC support
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2013-04-04 17:07:09 -07:00 |
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Andrew Waterman
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fc46daecf6
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don't flush pipeline on writes to side-effect-free PCRs
notably, K0, K1, and EPC
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2013-04-04 17:07:09 -07:00 |
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Andrew Waterman
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8b439ef20d
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only support setpcr/clearpcr of SR
the full PCR RMW support was wasted area/power
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2013-04-04 17:07:08 -07:00 |
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Andrew Waterman
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d43f484feb
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take interrupts on nonzero fromhost values
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2013-04-04 17:07:08 -07:00 |
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Andrew Waterman
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d4a3351cfc
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expose pending interrupts in status register
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2013-04-04 17:07:08 -07:00 |
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Henry Cook
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f8aebcbf8c
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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 |
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Henry Cook
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16113a96ba
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fixes after merge
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2013-03-25 19:09:08 -07:00 |
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Henry Cook
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95f0a688e9
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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 |
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Henry Cook
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273bd34091
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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 |
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Henry Cook
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6d2541aced
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nTiles -> nClients in LogicalNetworkConfig
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2013-03-20 14:12:36 -07:00 |
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Andrew Waterman
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ea9d0b771e
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remove aborts; simplify probes
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2013-03-19 15:29:40 -07:00 |
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Yunsup Lee
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0f50970913
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move HellaQueue to uncore
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2013-03-19 00:43:20 -07:00 |
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Henry Cook
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e0361840bd
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writebacks on release network pass asm tests and bmarks
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2013-02-28 18:11:40 -08:00 |
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Andrew Waterman
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35349d227f
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update to new Mem style
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2013-02-20 16:09:46 -08:00 |
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Andrew Waterman
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9f89c812b7
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fix HTIF memory size reporting
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2013-01-29 23:08:25 -08:00 |
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Yunsup Lee
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a0bd0adeb2
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change write/read port ordering for vlsi_mem_gen script
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2013-01-29 21:32:42 -08:00 |
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Andrew Waterman
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66eb3720a4
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fix SRAM semantics bug in HellaFlowQueue
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2013-01-29 21:16:42 -08:00 |
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Yunsup Lee
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60bd3a6413
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Revert "shuffled FPU control logic around to make functional unit retiming work better"
This reverts commit 20dd308067b143adff4913fc7ac710a393ca1d86.
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2013-01-29 19:34:55 -08:00 |
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Andrew Waterman
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6275e009f8
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fix HellaQueue deq.valid signal
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2013-01-28 20:57:43 -08:00 |
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Andrew Waterman
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45d8066f45
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add HellaQueue, an SRAM-based queue
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2013-01-28 20:54:25 -08:00 |
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Andrew Waterman
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37c67f1d87
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pipeline reset to the vector unit
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2013-01-28 17:56:32 -08:00 |
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Rimas Avizienis
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f2df6147df
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shuffled FPU control logic around to make functional unit retiming work better
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2013-01-28 17:17:09 -08:00 |
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Henry Cook
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f5729c9f25
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removed ack_required field from grant messages
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2013-01-28 16:44:17 -08:00 |
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Henry Cook
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8cbd316b5e
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Merge branch 'ready-sig-fix' into pin-cleanup
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2013-01-27 23:04:58 -08:00 |
|
Henry Cook
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931cffa749
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ready signal fix
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2013-01-27 23:04:35 -08:00 |
|
Henry Cook
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83c207c852
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pin cleanup in htif
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2013-01-27 12:00:28 -08:00 |
|
Henry Cook
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409b549d3c
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actually cleared up tile ios
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2013-01-27 11:27:09 -08:00 |
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Henry Cook
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696dd102eb
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cleans up unconnected tile io pins (networking headers overwritten at top level)
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2013-01-27 10:59:41 -08:00 |
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Andrew Waterman
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c890099e09
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add System Control Register space to HTIF
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2013-01-24 23:41:24 -08:00 |
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Andrew Waterman
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575bd3445a
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re-generalize scoreboard
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2013-01-24 18:00:39 -08:00 |
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Andrew Waterman
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1fbc20450e
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don't allow simultaneous reads and writes to the tag ram
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2013-01-24 17:55:00 -08:00 |
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Andrew Waterman
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37ee843b2c
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don't use reset combinationally
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2013-01-24 17:55:00 -08:00 |
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Andrew Waterman
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bb6fbddf1f
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don't probe the mshr file to inquire about refills
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2013-01-24 17:54:59 -08:00 |
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Andrew Waterman
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5b9f938263
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correctly sign-extend badvaddr, epc, and ebase
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2013-01-24 17:54:59 -08:00 |
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Rimas Avizienis
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63060bc0a8
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minor tweaks for eos18 tapeout (SRAM r/w port ordering, etc)
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2013-01-23 19:27:53 -08:00 |
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Henry Cook
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6b00e7ff74
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New TileLink bundle names
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2013-01-21 17:18:23 -08:00 |
|
Henry Cook
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a2fa3fd04d
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Refactored packet headers/payloads
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2013-01-15 15:50:37 -08:00 |
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Henry Cook
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e1225c5114
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standardize IO naming convention
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2013-01-07 13:41:36 -08:00 |
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Henry Cook
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261e14f831
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Refactored uncore conf
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2013-01-07 13:41:36 -08:00 |
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Andrew Waterman
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78868f6075
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add config option to trade mul/div area for speed
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2013-01-06 03:47:17 -08:00 |
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Andrew Waterman
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ce9f4881d2
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remove broken multiplier early out
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2013-01-06 03:47:00 -08:00 |
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Andrew Waterman
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05f19b21d0
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merge multiplier and divider
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2012-12-12 02:22:47 -08:00 |
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Andrew Waterman
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c921fc34a9
|
merge ALU left and right shifters
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2012-12-12 02:22:34 -08:00 |
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Andrew Waterman
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f5c53ce35d
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add ecc support to d$ data rams
i haven't injected errors yet; it may well be incorrect.
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2012-12-11 15:58:53 -08:00 |
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Andrew Waterman
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3f59e439ef
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fix d$ tag raw hazard
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2012-12-07 15:14:20 -08:00 |
|
Andrew Waterman
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e9752f1d72
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pipeline host pcr access
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2012-12-06 14:22:07 -08:00 |
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Andrew Waterman
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4dda38204f
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fix d$ reset bug
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2012-12-06 03:13:22 -08:00 |
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Andrew Waterman
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290d3d226c
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fix AMO and store bypass bugs
thanks, torture tester
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2012-12-06 02:07:52 -08:00 |
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Andrew Waterman
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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.
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2012-12-04 05:57:53 -08:00 |
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Andrew Waterman
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90cae54ac4
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fix D$ read/write concurrency bug
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2012-11-27 02:42:27 -08:00 |
|
Andrew Waterman
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9c857b83f0
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refactor PCR file
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2012-11-27 01:28:06 -08:00 |
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Andrew Waterman
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64674d4d39
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clean up PTW and support PADDR_BITS < VADDR_BITS
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2012-11-26 20:38:45 -08:00 |
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Andrew Waterman
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608f65e716
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don't wastefully read 2x the bits from D$ RAMs
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2012-11-26 20:34:30 -08:00 |
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Andrew Waterman
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352bb464b5
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clock gate X/M and M/W store data registers
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2012-11-26 20:33:41 -08:00 |
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Andrew Waterman
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8a6ff5f9aa
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fix D$ writeback bug
I swear I did this last week... perhaps I am finally losing it!
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2012-11-25 19:46:48 -08:00 |
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Andrew Waterman
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de2f28193a
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get rid of more global constants
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2012-11-25 04:24:25 -08:00 |
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Andrew Waterman
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c036cdc1ea
|
add option for 2-cycle load-use delay
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2012-11-24 22:01:08 -08:00 |
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Andrew Waterman
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b514c7b725
|
clean up I$ parity code
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2012-11-24 22:00:43 -08:00 |
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Andrew Waterman
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55082e45c4
|
add AVec, which automatically infers element type
should consider modifying Vec as such
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2012-11-24 18:19:28 -08:00 |
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Andrew Waterman
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2b26082132
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use 1r1w ram for tags; merge tags & permissions
setting the dirty bit now allocates an MSHR (to reuse the existing datapath)
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2012-11-20 04:09:26 -08:00 |
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Andrew Waterman
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72f94d1141
|
fix virtual address sign extension detection
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2012-11-20 04:06:57 -08:00 |
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Andrew Waterman
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30038bda8a
|
bypass stores to subsequent loads
since we handle subword stores as RMW operations, this occurs frequently
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2012-11-20 01:33:32 -08:00 |
|
Yunsup Lee
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395e4e3dd6
|
andrew'x fix for D$ corner case in writeback->abort->probe
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2012-11-18 03:11:06 -08:00 |
|
Yunsup Lee
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06eeb90e2a
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vector unit interfaces to the new D$
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2012-11-17 20:07:41 -08:00 |
|
Yunsup Lee
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81d711e892
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fix D$ bug; now D$ doesn't respond to prefetches
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2012-11-17 20:06:13 -08:00 |
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Andrew Waterman
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29bc361d6c
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remove global constants; disentangle hwacha a bit
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2012-11-17 17:24:08 -08:00 |
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Andrew Waterman
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5a7777fe4d
|
clock gate integer datapath more aggressively
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2012-11-17 06:48:44 -08:00 |
|
Andrew Waterman
|
cc067026a2
|
pipeline D$ response -> FPU regfile
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2012-11-17 06:48:11 -08:00 |
|
Andrew Waterman
|
e68b039133
|
fix misc. D$ control bugs
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2012-11-17 06:47:27 -08:00 |
|
Andrew Waterman
|
dad7b71062
|
provide cmd/addr with cache response
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2012-11-16 21:26:12 -08:00 |
|
Andrew Waterman
|
cb8ac73045
|
provide store data with cache response
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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
|
a90a1790a5
|
improve tlb qor
|
2012-11-16 01:59:38 -08:00 |
|
Andrew Waterman
|
ff8c736d94
|
move icache invalidate out of request bundle
|
2012-11-16 01:55:45 -08:00 |
|
Andrew Waterman
|
6d10115b19
|
fix D$ tag width
|
2012-11-15 16:46:39 -08:00 |
|
Yunsup Lee
|
be1980dd2d
|
refactored vector queue interface
|
2012-11-07 01:15:33 -08:00 |
|
Yunsup Lee
|
8764fe786a
|
refactored vector tlb
|
2012-11-06 23:53:52 -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
|
e76892f758
|
remove more global constants
|
2012-11-06 02:55:45 -08:00 |
|
Andrew Waterman
|
c5b93798fb
|
factor out more global constants
|
2012-11-05 23:52:32 -08:00 |
|
Yunsup Lee
|
ee081d1671
|
modify code to fix UFix := Bits error
|
2012-11-05 01:35:55 -08:00 |
|
Yunsup Lee
|
2a25307a8f
|
revamp the vector unit with the new frontend
|
2012-11-05 01:35:55 -08:00 |
|
Andrew Waterman
|
5b20ed71be
|
move rd=0 check into bypass logic
before, the check was in the write enable logic, but moving it obviated
an awkward corner case for mtpcr with rd=0.
|
2012-11-05 01:30:57 -08:00 |
|
Andrew Waterman
|
5e103054fd
|
fix bug in quine mccluskey
|
2012-11-05 00:28:25 -08:00 |
|
Andrew Waterman
|
e9eca6a95d
|
refactor I$ config; remove Top class
|
2012-11-04 16:59:36 -08:00 |
|
Andrew Waterman
|
7380c9fe60
|
aggressively clock gate int and fp datapaths
|
2012-11-04 16:40:14 -08:00 |
|