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Commit Graph

804 Commits

Author SHA1 Message Date
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