riscv/rocket-chip
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17 Commits

Author SHA1 Message Date
Wesley W. Terpstra
fb24e847fd rocketchip: globals are for sissies 2016-09-15 21:28:56 -07:00
Wesley W. Terpstra
644f8fe974 rocketchip: switch to TL2 mmio + port PRCI 2016-09-15 21:28:56 -07:00
Howard Mao
f5db83a72f NTiles should not be a Knob 2016-09-14 21:16:54 -07:00
Andrew Waterman
61cbe6164d Add option to execute JAL from decode stage 
This is particularly helpful for designs that don't have a BTB, but
it becomes the critical path for designs with RVC.  Caveat emptor.
 2016-09-13 02:32:00 -07:00
Andrew Waterman
266a2f24bd Disable Mul early out by default if XLen == 32 
With a default unroll of 8, it doesn't help performance, but costs area.
 2016-09-12 16:50:08 -07:00
Yunsup Lee
bb3f514e8d now able to add periphery devices through traits 
Unfortunately, I had to touch a lot of code, which weren't quite possible to split up into multiple commits.
This commit gets rid of the "extra" infrastructure to add periphery devices into Top.
 2016-09-10 23:39:29 -07:00
Andrew Waterman
70cfd7ce13 Make DefaultRV32Config be RV32IMAFCS, not RV32IMC 
The latter is more the domain of TinyConfig.
 2016-09-07 01:58:25 -07:00
Andrew Waterman
9fea4c83da Add RV32F support 2016-09-07 00:05:39 -07:00
Andrew Waterman
63679bb019 Add support for L1 data scratchpads instead of caches 
They fit in the same part of the address space as DRAM would be, and
are coherent (because they are not cacheable).

They are currently limited to single cores without DRAM.  We intend
to lift both restrictions, probably when we add support for
heterogeneous tiles.
 2016-09-02 16:22:07 -07:00
Andrew Waterman
fb50f7c9dd Set default TileLink width to XLen 2016-09-02 15:27:54 -07:00
Andrew Waterman
6872000f5e Merge pull request #239 from ucb-bar/move_rtc 
Move RTC
 2016-09-02 15:17:49 -07:00
Megan Wachs
8163a6b597 Make it easier to override the 'placeholder' Real-Time-Clock, to allow more real-world applications 2016-09-02 11:11:40 -07:00
Andrew Waterman
c05ba1e864 Add TileId parameter, generalizing GroundTestId 
This usually shouldn't be used in Tiles that are meant to be P&R'd once
and multiply instantiated, as their RTL would no longer be homogeneous.
However, it is useful for conditionalizing RTL generation for
heterogeneous tiles.
 2016-09-02 00:10:50 -07:00
Andrew Waterman
8dbee2b133 Don't conditionalize running bmarks on UseVM 2016-08-29 13:43:29 -07:00
Andrew Waterman
f91552a650 Add performance counter support 2016-08-29 12:31:52 -07:00
Andrew Waterman
9ca82dd397 reset default MulDiv config to moderately fast default 
Closes #228.

In commit 3f8c60bbd6 I inadvertently
changed the configuration while refactoring it.
 2016-08-29 12:31:52 -07:00
Howard Mao
7b20609d4d reorganize moving non-submodule packages into src/main/scala 2016-08-19 13:45:23 -07:00