Quan Nguyen
|
ebec444ad2
|
Increase tag width for configurable precision in Hwacha
|
2013-12-13 03:33:02 -08:00 |
|
Andrew Waterman
|
07a91bb99a
|
Miscellaneous cleanup
|
2013-12-09 19:53:14 -08:00 |
|
Andrew Waterman
|
da3135ac9b
|
Begin integer unit clean-up
...to make it easier to generate the superscalar version of the core.
|
2013-12-09 15:06:13 -08:00 |
|
Andrew Waterman
|
16d5250924
|
Correct FP trap behavior on FCSR
|
2013-12-05 04:18:04 -08:00 |
|
Andrew Waterman
|
5814a90472
|
Make DecodeLogic interface more flexible
|
2013-12-05 04:16:48 -08:00 |
|
Andrew Waterman
|
924261e2b2
|
Update to new privileged ISA... phew
|
2013-11-25 04:35:15 -08:00 |
|
Andrew Waterman
|
65b8340cea
|
Mitigate D$ hit -> branch -> NPC critical path
|
2013-11-24 14:21:03 -08:00 |
|
Andrew Waterman
|
53f726008b
|
Use Mem instead of Vec[Reg] for TLB
QoR-neutral, improves simulation speed
|
2013-11-24 14:21:02 -08:00 |
|
Yunsup Lee
|
d450b85483
|
Merge branch 'master', remote-tracking branch 'origin' into hwacha
|
2013-11-21 14:57:38 -08:00 |
|
Yunsup Lee
|
68e270eeb2
|
fix slli/slliw encoding bug
|
2013-11-21 14:44:58 -08:00 |
|
Quan Nguyen
|
3b109763ad
|
Connect FMA to Hwacha pipes
|
2013-11-19 20:54:47 -08:00 |
|
Stephen Twigg
|
a662e85f2a
|
Merge branch 'master' into hwacha
|
2013-11-14 16:02:44 -08:00 |
|
Yunsup Lee
|
c1966e2b0a
|
forgot to put htif into uncore package
|
2013-11-07 15:42:03 -08:00 |
|
Yunsup Lee
|
da033af0b0
|
move htif to uncore
|
2013-11-07 13:18:46 -08:00 |
|
Yunsup Lee
|
4c56323f6f
|
hookup all memory ports
|
2013-11-05 17:12:09 -08:00 |
|
Stephen Twigg
|
eae571e371
|
Remove rocc memory simplifye module (Hwacha has its own)
|
2013-11-05 15:31:03 -08:00 |
|
Andrew Waterman
|
12f0369e6e
|
Simplify divide early out circuitry
|
2013-10-29 13:20:40 -07:00 |
|
Andrew Waterman
|
b44dafbdca
|
Simplify branch offset mux
|
2013-10-29 13:20:40 -07:00 |
|
Andrew Waterman
|
23f7bab4f3
|
Reduce FMA pipeline depths
FMA QoR has improved enough to allow this change.
|
2013-10-29 13:20:40 -07:00 |
|
Yunsup Lee
|
1583560757
|
fix replay bug, don't respond when cmd is a NOP
|
2013-10-28 22:35:18 -07:00 |
|
Stephen Twigg
|
36b85b8ee2
|
Fix issue where the MSB of D$ req tag was getting lost for all agents when an accelerator was attached.
|
2013-09-25 11:51:10 -07:00 |
|
Stephen Twigg
|
891e459625
|
Export stats pcr register (#28 currently) to the top-level
|
2013-09-25 01:16:32 -07:00 |
|
Stephen Twigg
|
730a6ec76b
|
AccumulatorExample now properly sets its busy bit. Also, pepper some helpful comments into AccumulatorExample
|
2013-09-24 16:32:49 -07:00 |
|
Andrew Waterman
|
81c752de84
|
Support disabling virtual memory
|
2013-09-24 13:58:47 -07:00 |
|
Andrew Waterman
|
adc386f889
|
Turn off virtual memory inside RoCC base class
|
2013-09-24 13:58:47 -07:00 |
|
Stephen Twigg
|
3532ae0b79
|
From Andrew, actually mark scoreboard when rocc instruction with a writeback is issued. Also, fix an issue with AccumulatorExample not properly tagging its memory requests. Finally, reverted changes from f27429c to more properly follow the spike model (always return previous value of accumulator).
|
2013-09-24 10:54:09 -07:00 |
|
Stephen Twigg
|
db1e09f0d0
|
Fix issues with RoCC AccumulatorExample stalls on memory interface
|
2013-09-23 00:21:43 -07:00 |
|
Stephen Twigg
|
158cee08af
|
Adjust ordering of RoCCInstruction to reflect new ISA encoding. (Note: Fixes register op issues with AccumulatorExample but still slight issue with executing memory loads)
|
2013-09-22 03:18:06 -07:00 |
|
Andrew Waterman
|
1d2f4f8437
|
New ISA encoding, AUIPC semantics
|
2013-09-21 06:32:40 -07:00 |
|
Andrew Waterman
|
25ab402932
|
swap JAL, JALR encodings
|
2013-09-15 04:29:06 -07:00 |
|
Andrew Waterman
|
110e53cb48
|
Revert "Add early out to multiplier"
This broke recently and I don't have time to figure out why.
|
2013-09-15 04:15:32 -07:00 |
|
Andrew Waterman
|
88d1c47665
|
don't disassemble within chisel
|
2013-09-15 04:14:45 -07:00 |
|
Andrew Waterman
|
f12bbc1e43
|
working RoCC AccumulatorExample
|
2013-09-14 22:34:53 -07:00 |
|
Andrew Waterman
|
18968dfbc7
|
Move store data generation into cache
|
2013-09-14 16:15:07 -07:00 |
|
Andrew Waterman
|
a0cb711451
|
Start adding RoCC
|
2013-09-14 15:31:50 -07:00 |
|
Andrew Waterman
|
d053bdc89f
|
Remove Hwacha from Rocket
Soon it will use the coprocessor interface.
|
2013-09-12 22:34:38 -07:00 |
|
Andrew Waterman
|
1edb1e2a0a
|
Ignore LSB of PC
|
2013-09-12 17:55:58 -07:00 |
|
Andrew Waterman
|
59f5358435
|
Implement AQ/RL; move fence logic out of cache
|
2013-09-12 16:07:30 -07:00 |
|
Andrew Waterman
|
243c4ae342
|
sync up rocket with new isa
|
2013-09-12 03:44:38 -07:00 |
|
Andrew Waterman
|
95dd0d8be1
|
Remove DebugIO/error mode
|
2013-09-11 20:15:21 -07:00 |
|
Henry Cook
|
f9b85d8158
|
NetworkIOs no longer use thunks
|
2013-09-10 16:15:19 -07:00 |
|
Henry Cook
|
d06e24ac24
|
new enum syntax
|
2013-09-10 10:51:35 -07:00 |
|
Stephen Twigg
|
cfbfa6b895
|
Add errors due to merge issues. Note, DebugIO re-introduced here but slated for possible removal in later commits.
|
2013-09-05 19:22:34 -07:00 |
|
Stephen Twigg
|
d896ccbd43
|
Merge branch 'master' into chisel-v2
Conflicts:
src/main/scala/htif.scala
|
2013-09-05 16:11:53 -07:00 |
|
Andrew Waterman
|
b9f6e1a7ec
|
Don't update BTB when garbage was fetched
|
2013-08-26 14:53:04 -07:00 |
|
Yunsup Lee
|
44e92edf92
|
fix scr parameterization bug
|
2013-08-24 22:42:51 -07:00 |
|
Andrew Waterman
|
3895b75a56
|
Support non-power-of-2 BTBs; prefer invalid entries
|
2013-08-24 17:33:11 -07:00 |
|
Yunsup Lee
|
2ca5127785
|
parameterize number of SCRs
|
2013-08-24 15:47:14 -07:00 |
|
Andrew Waterman
|
daf23b8f79
|
Add early out to multiplier
|
2013-08-24 14:44:23 -07:00 |
|
Andrew Waterman
|
67f80ba4b2
|
Stall div/mul writeback until WB slot is free
|
2013-08-24 14:44:17 -07:00 |
|
Andrew Waterman
|
d1b5076fee
|
Don't update BTB when garbage was fetched
|
2013-08-24 14:44:11 -07:00 |
|
Andrew Waterman
|
52e31f3298
|
Bypass scoreboard updates
This reduces div/mul/D$ miss latency by 1 cycle.
|
2013-08-24 14:44:04 -07:00 |
|
Andrew Waterman
|
d4a0db4575
|
Reflect ISA changes
|
2013-08-24 14:43:55 -07:00 |
|
Henry Cook
|
ff7b486006
|
standardized sbt build
|
2013-08-15 18:13:19 -07:00 |
|
Henry Cook
|
ae02ebd153
|
Merge branch 'chisel-v2' of github.com:ucb-bar/riscv-rocket into chisel-v2
Conflicts:
src/core.scala
src/ctrl.scala
src/dpath_util.scala
src/fpu.scala
src/nbdcache.scala
src/tile.scala
|
2013-08-15 16:35:27 -07:00 |
|
Henry Cook
|
3a266cbbfa
|
final Reg changes
|
2013-08-15 15:28:15 -07:00 |
|
Henry Cook
|
b570435847
|
Reg standardization
|
2013-08-13 17:50:02 -07:00 |
|
Henry Cook
|
858169917e
|
removed dummy DNCs handled by pruning
|
2013-08-12 22:34:46 -07:00 |
|
Henry Cook
|
d9b3c7cfc8
|
Moved RenEn to ChiselUtil
|
2013-08-12 22:18:25 -07:00 |
|
Huy Vo
|
387cf0ebe0
|
reset -> resetVal, getReset -> reset
|
2013-08-12 20:51:54 -07:00 |
|
Henry Cook
|
1a9e43aa11
|
initial attempt at upgrade
|
2013-08-12 10:39:11 -07:00 |
|
Henry Cook
|
de313d97de
|
Merge branch 'master' of github.com:ucb-bar/riscv-rocket
|
2013-08-02 16:30:09 -07:00 |
|
Henry Cook
|
4eaab214d2
|
Fold uncore constants into TileLinkConfiguration, update coherence API
|
2013-08-02 16:29:51 -07:00 |
|
Henry Cook
|
bef6c1db35
|
minor nbdcache cleanup
|
2013-08-02 16:29:37 -07:00 |
|
Stephen Twigg
|
3132db4f90
|
Add stats PCR (cr28) to be used to flag whether a core is doing 'interesting' activity.
|
2013-07-30 16:36:28 -07:00 |
|
Henry Cook
|
9abdf4e154
|
Make compatible with scala 2.10. List.sort deprecated. Refactor constants into package object.
|
2013-07-23 20:27:58 -07:00 |
|
Henry Cook
|
5c00d0a030
|
new tilelink arbiter type
|
2013-07-09 15:31:46 -07:00 |
|
Andrew Waterman
|
7cc53c7725
|
clean up Str
|
2013-06-15 00:45:53 -07:00 |
|
Andrew Waterman
|
95c5147dc5
|
Add RISC-V instruction disassembler
|
2013-06-13 10:31:04 -07:00 |
|
Henry Cook
|
569d8fd796
|
Merge branch 'tilelink-data'
|
2013-05-23 14:14:40 -07:00 |
|
Henry Cook
|
12205b9684
|
remove obsolete config file reader prototype
|
2013-05-23 14:09:03 -07:00 |
|
Andrew Waterman
|
fe9adfe71b
|
Simplify and correct integer multiplier
|
2013-05-22 17:27:50 -07:00 |
|
Yunsup Lee
|
11133d6d4c
|
clock gate s2 registers in the frontend
|
2013-05-21 18:59:21 -07:00 |
|
Yunsup Lee
|
c837c1d800
|
fix bug in previous JALR commit
on commit tag 9a122c06d1bf11237d7fb0769d454a67bbb7400e
|
2013-05-21 18:28:44 -07:00 |
|
Henry Cook
|
69b508ff39
|
ported caches and htif to use new tilelink
|
2013-05-21 17:21:04 -07:00 |
|
Andrew Waterman
|
28f914c3f2
|
don't JALR to speculatively-bypassed addresses
Technically not necessary, but probably improves performance.
|
2013-05-21 16:56:58 -07:00 |
|
Yunsup Lee
|
dcde377303
|
Fix DM I$ deadlock
BTB predictions were causing infinite miss loops
|
2013-05-20 15:22:58 -07:00 |
|
Andrew Waterman
|
3a1b5f01b2
|
don't take interrupts while they're disabled!
a control bug allowed an interrupt to be taken on the instruction immediately
following an interrupt-disabling instruction (but not thereafter).
|
2013-05-19 23:27:47 -07:00 |
|
Andrew Waterman
|
6eb4c2542a
|
comment out I$ assert for now
|
2013-05-18 18:09:23 -07:00 |
|
Andrew Waterman
|
1dab984231
|
use UFix instead of Bits for arithmetic
|
2013-05-18 00:45:29 -07:00 |
|
Andrew Waterman
|
dfa7a03f73
|
use assert, not Assert
|
2013-05-18 00:45:13 -07:00 |
|
Andrew Waterman
|
d405ffa949
|
assume all I$ grants bear data
|
2013-05-01 21:01:20 -07:00 |
|
Andrew Waterman
|
474d321cc7
|
fix meta hazard counter to reset on new meta writes
|
2013-05-01 16:35:24 -07:00 |
|
Andrew Waterman
|
a6a88fce19
|
Revert "broaden scope of s1_nack to include new probes accepted by the probe unit on that cycle"
This reverts commit b41e6bc50519631ba097ac1196737be7107295f9.
|
2013-05-01 16:34:45 -07:00 |
|
Andrew Waterman
|
63a38e7982
|
Revert "temp"
This reverts commit 73705e6ed8f98d08ce6b30fbe760de694c6563ae.
|
2013-05-01 16:34:33 -07:00 |
|
Henry Cook
|
b6945408cb
|
temp
|
2013-05-01 10:24:36 -07:00 |
|
Henry Cook
|
722bc917d3
|
broaden scope of s1_nack to include new probes accepted by the probe unit on that cycle
|
2013-05-01 10:05:54 -07:00 |
|
Andrew Waterman
|
1501e90c1f
|
interlock probe unit on tag RAW hazards
|
2013-04-30 00:38:22 -07:00 |
|
Henry Cook
|
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
|
2013-04-25 17:41:04 -07:00 |
|
Andrew Waterman
|
50ccc20bf3
|
replace RDNPC with AUIPC
|
2013-04-22 04:20:15 -07:00 |
|
Henry Cook
|
db5a060c7d
|
fix io dir
|
2013-04-10 13:47:30 -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 |
|
Andrew Waterman
|
fc46daecf6
|
don't flush pipeline on writes to side-effect-free PCRs
notably, K0, K1, and EPC
|
2013-04-04 17:07:09 -07:00 |
|
Andrew Waterman
|
8b439ef20d
|
only support setpcr/clearpcr of SR
the full PCR RMW support was wasted area/power
|
2013-04-04 17:07:08 -07:00 |
|
Andrew Waterman
|
d43f484feb
|
take interrupts on nonzero fromhost values
|
2013-04-04 17:07:08 -07:00 |
|
Andrew Waterman
|
d4a3351cfc
|
expose pending interrupts in status register
|
2013-04-04 17:07:08 -07:00 |
|
Henry Cook
|
f8aebcbf8c
|
fix for cache controller bug: failing to mux correct metadata into mshr.io.old_meta on tag match
|
2013-04-04 15:50:29 -07:00 |
|