riscv/rocket-chip
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Author SHA1 Message Date
Christopher Celio
9cc35dee9a Returned history update to fetch. 
- Global history only contains branches.
   - Only update BHT and history on BTB hits.
   - Gate off speculative update on stall or icmiss.
   - Fixed bug where BHT updates were delayed a cycle.
 2014-09-29 21:41:07 -07:00
Christopher Celio
8ccd07cfeb Moved updating global history from fetch to decode. 
- No longer update global history in fetch stage.
   - Only update global history when instruction is a branch.
   - Does allow for the possibility of back-to-back branches to see
     slightly different histories on subsequent executions.
 2014-09-28 05:16:36 -07:00
Christopher Celio
681b43f398 Bug fixes with global history register. 
- Updated in fetch speculatively.
      * Updates gated off by cpu.resp.fire().
      * BTB direction factored into history update.
   - All branches update the BHT.
   - Each instruction carries history; index into BHT is recomputed by
     passing in mem_reg_pc.
 2014-09-26 10:39:57 -07:00
Christopher Celio
a71bdbbc54 Update history register in fetch speculatively 2014-09-26 05:42:08 -07:00
Christopher Celio
f917810061 Removed RocketCoreParameters from use. 
- The nbdache (among others?) use CoreParameters, which has nothing to do with RetireWidth requirements.
   - This conflicts with other cores which uses nbdcache.
   - RocketCoreParameters may be unneccessary, and the require() check can be moved deeper into Rocket.
 2014-09-26 05:14:50 -07:00
Christopher Celio
868e747656 Factored out Rocket specifics from CoreParameters 
- Added new RocketCoreParameters
   - Other cores using Rocket as a library will no longer conflict against
      Rocket's requires().
 2014-09-25 18:52:58 -07:00
Yunsup Lee
7a28d2b47c forgot to move more hwacha stuff out in rocket-chip 2014-09-25 15:34:18 -07:00
Henry Cook
8eb64205f5 bug fix for nbdcache s2_data 2014-09-25 12:00:20 -07:00
Henry Cook
b55c38cdc7 Remove spurious vec consts 2014-09-25 12:00:20 -07:00
Yunsup Lee
70b0f9fd4d error out for PCWM-L, port width mismatch 2014-09-25 06:50:50 -07:00
Adam Izraelevitz
15fb4730ec Add BuildTile parameter for Tile 
Conflicts:
	rocket
 2014-09-25 06:50:45 -07:00
Henry Cook
7398b00d93 dir supplied by function 2014-09-25 06:50:41 -07:00
Henry Cook
db4de7b806 bump chisel 2014-09-25 06:50:36 -07:00
Henry Cook
5a840c5520 support for multiple tilelink paramerterizations in same design 2014-09-25 06:50:30 -07:00
Yunsup Lee
e2ed81dcd2 push chisel 2014-09-25 06:50:05 -07:00
Donggyu Kim
eb384f6461 new RocketChipBackend implementation 2014-09-25 06:47:12 -07:00
Scott Beamer
f2ca887de3 better fpga configs 2014-09-25 06:47:03 -07:00
Donggyu Kim
4fe48f5a0a bump chisel 2014-09-25 06:46:58 -07:00
Donggyu Kim
60d90f5230 recover collectNodesIntoComp in Backends.scala 2014-09-25 06:46:50 -07:00
Donggyu Kim
a53091b40f remove collectNodesIntoComp from Backends.scala 2014-09-25 06:46:27 -07:00
Scott Beamer
1a101f8de5 don't use latches on mem ports for fpga 2014-09-25 06:46:21 -07:00
Scott Beamer
f4e6cd75ab turn off fpu for default fpga config. 
a larger fpga can use defaultconfig
 2014-09-25 06:46:16 -07:00
Stephen Twigg
fefa560017 Change addons subproject to use .addons-dont-touch directory instead of addons 
This hides the directory name under standard invocations of ls and thus avoids confusing the user with extra directory names.
 2014-09-25 06:46:06 -07:00
Stephen Twigg
69d765744c Adjustments to the build structure (see below) 
All 'addon' subprojects now have their sources aggregated into the addons subproject. This is done via a source copy (so that sbt will only rebuild sources that actually changed). To prevent caching issues the addons/src directory is CLEARED and then refilled every time addons is compiled. Thus, it is CRUCIAL NO SOURCES ARE MANUALLY ADDED TO addons/src AS THEY WILL BE WIPED BY addons/prepare. Due to sbt source caching, sbt will still be able to tell which sources have changed. (Strangely, sbt would not cache sources in extra unmanaged source directories and thus would always recompile them.) Also, cleaned up project/build.scala a bit to remove some warnings: Added import scala.language/postFixOps (so make! at the bottom no longer errors) and .toURI.toURL (as straight .toURL has been deprecated by the java standard library).
 2014-09-25 06:45:21 -07:00
Yunsup Lee
3b9624277a normalize rocket-chip to reference-chip 2014-09-25 06:45:09 -07:00
Henry Cook
7571695320 Removed broken or unfinished modules, new MemPipeIO converter 2014-09-24 15:11:24 -07:00
Adam Izraelevitz
3e256439c9 Add abstract class Tile 2014-09-24 13:04:20 -07:00
Henry Cook
82fe22f958 support for multiple tilelink paramerterizations in same design 
Conflicts:

	src/main/scala/cache.scala
 2014-09-24 11:30:40 -07:00
Henry Cook
53b8d7b031 use new coherence methods in l2, ready to query dir logic 2014-09-20 18:01:14 -07:00
Henry Cook
149d51d644 more coherence API cleanup 2014-09-20 16:57:13 -07:00
Henry Cook
faed47d131 use thunk for dir info 2014-09-20 16:54:28 -07:00
Henry Cook
f7b1e23ead functional style on MuxBundle 2014-09-20 16:54:28 -07:00
Christopher Celio
180d3d365d Expanded front-end to support superscalar fetch. 2014-09-17 14:24:03 -07:00
Yunsup Lee
6495d0e6f7 bump rocket,uncore 2014-09-17 11:26:12 -07:00
Yunsup Lee
f249da1803 update README 2014-09-17 11:25:14 -07:00
Yunsup Lee
238f7761f6 update README 2014-09-17 11:23:25 -07:00
Yunsup Lee
041a362943 push chisel 2014-09-17 11:12:12 -07:00
Yunsup Lee
221007595b allow BACKEND/CONFIG be environment variables 2014-09-17 11:12:08 -07:00
Adam Izraelevitz
484648d9c7 Changed CONFIG from a recursively expanded variable to a conditionally 
assigned variable, allowing users to define CONFIG external to Makefile
 2014-09-17 11:12:02 -07:00
Yunsup Lee
ef2e96211c bump chisel/hardfloat/rocket/uncore 2014-09-12 18:10:00 -07:00
Yunsup Lee
09de2e2794 compute number of outstanding misses for DRAMSideLLCNull 2014-09-12 18:09:38 -07:00
Yunsup Lee
8abf62fae3 add LICENSE 2014-09-12 18:06:41 -07:00
Yunsup Lee
25180b71f7 add LICENSE 2014-09-12 15:36:42 -07:00
Yunsup Lee
49b027db2c forgot to add LICENSE file 2014-09-12 15:36:29 -07:00
Yunsup Lee
0b51d70bd2 add LICENSE 2014-09-12 15:31:38 -07:00
Yunsup Lee
e40a6fdd64 more tweaks to README 2014-09-12 10:22:00 -07:00
Yunsup Lee
c57dea415c fix markdown 2014-09-12 10:18:14 -07:00
Yunsup Lee
1cfd9f5a0e add LICENSE 2014-09-12 10:15:04 -07:00
Stephen Twigg
2367b7beb5 Added logic to sbt so that, for rocketchip, it will automatically include src/main/scala sources from subdirectories into the rocketchip top-level project not already handled by formal subprojects 2014-09-12 01:08:11 -07:00
Yunsup Lee
2c33852c52 final touches 2014-09-12 00:19:29 -07:00