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Commit Graph

90 Commits

Author SHA1 Message Date
Andrew Waterman
7c70aa593e Minor stylistic and QoR improvements to PLIC 2017-04-27 19:35:20 -07:00
Megan Wachs
7ad4cc36f7 debug: Prevent writes to DATA/PROGBUF when busy 2017-04-26 11:11:21 -07:00
Megan Wachs
9002e7e532 debug: Debug Module needs to handle DMI NOPs even if DTM won't send them. 2017-04-20 10:19:50 -07:00
Megan Wachs
0c013a56c0 debug: Make DMI NOPs really NOPs.
This simplifies SW design and CDC issues.
2017-04-20 10:19:50 -07:00
Megan Wachs
1be13d6b4c PLIC: To avoid hazard between enable -> claim, enforce concurrency=1 2017-04-19 21:37:37 -07:00
Megan Wachs
af6b2d8051 debug: DATA Region has to be aligned for ld/sd to correctly detect 64-bit cores. 2017-04-17 10:28:33 -07:00
Megan Wachs
b44d5f9386 debug: correctly consider .transfer bit in COMMAND 2017-04-17 10:28:33 -07:00
Megan Wachs
79477fbea6 debug: Properly consider 'transfer' bit 2017-04-17 10:28:33 -07:00
Megan Wachs
2dc4be6294 debug: remove preexec. Simplify the state machine since you can always just 'execute' once. 2017-04-17 10:28:33 -07:00
Megan Wachs
051acee76c Debug: Fix off-by-1 for detecting nonexistent harts. 2017-04-07 16:47:16 -07:00
Megan Wachs
01372e1686 use Wire() correctly to assign a value 2017-04-07 16:47:16 -07:00
Megan Wachs
22c6f728c3 debug: Use flags for resume instead of program buffer. Untested. 2017-04-07 16:47:16 -07:00
Megan Wachs
d361e9e343 debug: temporarily leave preexec in place 2017-04-07 16:47:16 -07:00
Megan Wachs
0e2c34b0d6 debug: update register map with new spec 2017-04-07 16:47:16 -07:00
Megan Wachs
df5caba7bf debug: Make it easier to override parts of the Default Debug Config (#655)
* Handle single-step with a pipeline stall, not a flush

The pipeline flush approach broke when I changed the pipeline stage
the flush happens from

* debug: Make it easier to override parts of the Default Debug Config

* Fix typo in Debug code generation

abstractGeneratedI should be abstractGeneratedS when pulling out the opcode.
This doesn't actually break anything, but fix it for clarity.
2017-04-06 10:33:17 -07:00
Megan Wachs
2601740542 debug: fix some typos related to the ID->SEL mapping functions 2017-04-05 15:14:32 -07:00
Megan Wachs
b94f1f15b0 debug: redirect DMI NOPs to CONTROL register so things don't hang during reset 2017-04-05 15:14:32 -07:00
Megan Wachs
eef05cc1fc debug: Enforce mapping between hartsel and hartid, use more reasonable defaults for DATA and PROGBUF sizes. 2017-04-05 15:14:32 -07:00
Megan Wachs
629e9a2ef6 debug: Put DebugROM back inside the overall Debug Module (#647) 2017-04-03 16:36:53 -07:00
Megan Wachs
d2c1bdc2ce Debug Controls (#639)
* debug: Bump OpenOCD version to one that drives resets and sets cmderr appropriately.

* debug: Export the dmactive and ndreset signals to the top level and drive reset as intended in the TestHarness.
2017-04-03 13:31:35 -07:00
Megan Wachs
375a039279 debug: Use proper write-1-to-clear ABSTRACTCS.cmderr behavior (because fesvr code is using correct spec) 2017-03-28 21:14:22 -07:00
Megan Wachs
42ca597478 debug: Breaking change until FESVR is updated as well.
* Replace v11 Debug Module with v13 module.
* Correct all instantiating interfaces.
* Rename "Debug Bus" to "DMI" (Debug
  Module Interface)
* Use Diplomacy interrupts for DebugInterrupt
* Seperate device for TLDebugROM
2017-03-27 21:19:08 -07:00
Megan Wachs
0c3d85b52b debug: add generated ROM contents and register fields. 2017-03-27 21:01:36 -07:00
Megan Wachs
11507ac7d6 TLROM: Use Resource as a parameter rather than assuming SimpleDevice.
This allows more flexibility e.g. considering the ROM as part of other
devices.
2017-03-26 20:58:14 -07:00
Megan Wachs
bf648514e3 TLROM: allow name and compatibility strings to be provided by subclasses. 2017-03-26 20:58:14 -07:00
Wesley W. Terpstra
f36b1766f8 TLROM: use the smallest ROM implementation that works
The contents everywhere else are still zero.
2017-03-24 20:40:28 -07:00
Wesley W. Terpstra
4eef317e84 RegisterRouter: support devices with gaps 2017-03-20 14:49:22 -07:00
Megan Wachs
dcc9827ab4 Rename Prci.scala to Clint.scala (#591)
The internals of this were renamed to CoreplexLocalInterrupter, so changing the top level name to match.
2017-03-17 15:36:10 -07:00
Andrew Waterman
33b6d48376 Fix haltnot reporting (previously always returned 0) 2017-03-09 13:58:40 -08:00
Wesley W. Terpstra
4535de2669 rocket: use diplomatic interrupts
This makes it possible for the PLIC to work with heterogenous cores.
2017-03-02 21:19:23 -08:00
Wesley W. Terpstra
d3c5318714 build: remove the now obsolete config string 2017-03-02 21:19:23 -08:00
Wesley W. Terpstra
7ff9f88ad7 rocket: connect interrupt map for Plic+Clint 2017-03-02 21:19:22 -08:00
Wesley W. Terpstra
9a5e2e038b uncore: add DTS meta-data for devices 2017-03-02 21:19:22 -08:00
Henry Cook
e8c8d2af71 Heterogeneous Tiles (#550)
Fundamental new features:

* Added tile package: This package is intended to hold components re-usable across different types of tile. Will be the future location of TL2-RoCC accelerators and new diplomatic versions of intra-tile interfaces.
* Adopted [ModuleName]Params convention: Code base was very inconsistent about what to name case classes that provide parameters to modules. Settled on calling them [ModuleName]Params to distinguish them from config.Parameters and config.Config. So far applied mostly only to case classes defined within rocket and tile.
* Defined RocketTileParams: A nested case class containing case classes for all the components of a tile (L1 caches and core). Allows all such parameters to vary per-tile.
* Defined RocketCoreParams: All the parameters that can be varied per-core.
* Defined L1CacheParams: A trait defining the parameters common to L1 caches, made concrete in different derived case classes.
* Defined RocketTilesKey: A sequence of RocketTileParams, one for every tile to be created.
* Provided HeterogeneousDualCoreConfig: An example of making a heterogeneous chip with two cores, one big and one little.
* Changes to legacy code: ReplacementPolicy moved to package util. L1Metadata moved to package tile. Legacy L2 cache agent removed because it can no longer share the metadata array implementation with the L1. Legacy GroundTests on life support.

Additional changes that got rolled in along the way:

* rocket: 	Fix critical path through BTB for I$ index bits > pgIdxBits
* coreplex: tiles connected via :=*
* groundtest: updated to use TileParams
* tilelink: cache cork requirements are relaxed to allow more cacheless masters
2017-02-09 13:59:09 -08:00
Wesley W. Terpstra
972953868c uncore: switch to new diplomacy Node API
Most adapters should work on multiple ports.
This patch changes them all.
2017-01-29 15:54:45 -08:00
Wesley W. Terpstra
020fbe8be9 diplomacy: make config.Parameters available in bundle connect()
This makes it posisble to use Parameters to control Monitors.
However, we need to make all LazyModules carry Parameters.
2016-12-07 12:24:01 -08:00
Wesley W. Terpstra
3c9718ec8f clint: undefined registers must be zero (#480)
This is needed so that SMP-safe boot loaders can safely
read/write to the IPI register of non-existent harts.
2016-12-05 17:11:53 -08:00
Wesley W. Terpstra
b7963eca4e copyright: ran scripts/modify-copyright 2016-11-27 22:15:43 -08:00
Wesley W. Terpstra
c80ee06472 rocketchip: configString is a lazy property of outer 2016-11-22 17:27:58 -08:00
Wesley W. Terpstra
d1328a6b6f rocketchip: remove most uses of GlobalAddrMap 2016-11-18 19:38:02 -08:00
Wesley W. Terpstra
5b594ced29 Plic: support 0 interrupts gracefully 2016-11-18 18:07:44 -08:00
Wesley W. Terpstra
37a3c22639 rocketchip: move from using cde to config 2016-11-18 16:18:33 -08:00
Wesley W. Terpstra
119ccae9af rocketchip: don't use explicit cde namespace 2016-11-18 14:31:42 -08:00
Wesley W. Terpstra
10e459fedb rocket: change connection between rocketchip and coreplex
* rtc and dtm are now crossed half-and-half on the two sides
* groundtest no longer uses riscv platform traits
2016-11-15 18:27:52 -08:00
Wesley W. Terpstra
a12fea51e8 Plic: skip reserved interrupt in interrupt map printout 2016-10-31 11:42:47 -07:00
Wesley W. Terpstra
ba529c3716 rocketchip: use TileLink2 interrupts 2016-10-31 11:42:47 -07:00
Wesley W. Terpstra
0cc00e7616 regressions: test scratchpad 2016-10-31 11:42:47 -07:00
Wesley W. Terpstra
d2e9fa8ec6 Plic: remove path from ready to bits 2016-10-31 11:42:47 -07:00
Wesley W. Terpstra
9a26cb7ec7 Debug: mark the debug device executable 2016-10-31 11:42:47 -07:00
Wesley W. Terpstra
89139a9492 Plic: split constants from variables used in config string 2016-10-31 11:42:13 -07:00