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Commit Graph

161 Commits

Author SHA1 Message Date
Yunsup Lee
98b830201a add wen signal to dasm printf 2014-02-25 03:31:06 -08:00
Yunsup Lee
97b1841fcf change dcache tag bits to 7 2014-02-22 22:53:04 -08:00
Andrew Waterman
a09ff9fdc7 Revert to old AUIPC definition 2014-02-10 19:04:42 -08:00
Quan Nguyen
f021213b1d Merge remote-tracking branch 'origin/master' into hwacha-port 2014-02-06 00:21:28 -08:00
Andrew Waterman
62e9313aef Add 16 microarchitectural counters 2014-02-06 00:13:02 -08:00
Yunsup Lee
ff7cae29f7 hookup rocc interrupt and s bit 2014-02-06 00:09:42 -08:00
Andrew Waterman
a7489920ce Support CSR atomics on all CSRs, not just STATUS 2014-01-21 16:17:39 -08:00
Andrew Waterman
e8486817e6 Clean up formatting (i.e. remove tabs, semicolons) 2014-01-13 21:43:56 -08:00
Andrew Waterman
4d236979bd Fix very far forward JALs
We were sign-extending from the wrong bit, causing a backwards jump.
2014-01-13 00:55:48 -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
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
Yunsup Lee
c1966e2b0a forgot to put htif into uncore package 2013-11-07 15:42:03 -08:00
Andrew Waterman
b44dafbdca Simplify branch offset mux 2013-10-29 13:20:40 -07:00
Andrew Waterman
1d2f4f8437 New ISA encoding, AUIPC semantics 2013-09-21 06:32:40 -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
243c4ae342 sync up rocket with new isa 2013-09-12 03:44:38 -07:00
Andrew Waterman
67f80ba4b2 Stall div/mul writeback until WB slot is free 2013-08-24 14:44:17 -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
3a266cbbfa final Reg changes 2013-08-15 15:28:15 -07:00
Henry Cook
1a9e43aa11 initial attempt at upgrade 2013-08-12 10:39:11 -07:00
Henry Cook
4eaab214d2 Fold uncore constants into TileLinkConfiguration, update coherence API 2013-08-02 16:29:51 -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
Andrew Waterman
95c5147dc5 Add RISC-V instruction disassembler 2013-06-13 10:31:04 -07:00
Andrew Waterman
50ccc20bf3 replace RDNPC with AUIPC 2013-04-22 04:20:15 -07:00
Andrew Waterman
8cbdeb2abf add LR/SC support 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
Henry Cook
6d2541aced nTiles -> nClients in LogicalNetworkConfig 2013-03-20 14:12:36 -07:00
Henry Cook
e1225c5114 standardize IO naming convention 2013-01-07 13:41:36 -08:00
Andrew Waterman
78868f6075 add config option to trade mul/div area for speed 2013-01-06 03:47:17 -08:00
Andrew Waterman
05f19b21d0 merge multiplier and divider 2012-12-12 02:22:47 -08:00
Andrew Waterman
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.
2012-12-04 05:57:53 -08:00
Andrew Waterman
9c857b83f0 refactor PCR file 2012-11-27 01:28:06 -08:00
Andrew Waterman
352bb464b5 clock gate X/M and M/W store data registers 2012-11-26 20:33:41 -08:00
Andrew Waterman
de2f28193a get rid of more global constants 2012-11-25 04:24:25 -08:00
Andrew Waterman
c036cdc1ea add option for 2-cycle load-use delay 2012-11-24 22:01:08 -08:00
Andrew Waterman
72f94d1141 fix virtual address sign extension detection 2012-11-20 04:06:57 -08:00
Andrew Waterman
29bc361d6c remove global constants; disentangle hwacha a bit 2012-11-17 17:24:08 -08:00
Andrew Waterman
5a7777fe4d clock gate integer datapath more aggressively 2012-11-17 06:48:44 -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
Yunsup Lee
8764fe786a refactored vector tlb 2012-11-06 23:53:52 -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
c5b93798fb factor out more global constants 2012-11-05 23:52:32 -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
7380c9fe60 aggressively clock gate int and fp datapaths 2012-11-04 16:40:14 -08:00