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Commit Graph

255 Commits

Author SHA1 Message Date
Howard Mao
5a74a9b1e7 switch memory interconnect from AXI to TileLink 2016-03-31 18:18:30 -07:00
Howard Mao
7c3b57b8fa switch MMIO network to TileLink 2016-03-31 14:30:10 -07:00
Howard Mao
c081a36893 Revert "Bump chisel3 and firrtl, add support for firrtl $ delimiter"
This reverts commit 5378f79b50.
2016-03-30 19:06:32 -07:00
Howard Mao
1e03408323 get rid of mt benchmark suite 2016-03-29 20:16:07 -07:00
Howard Mao
ad93e0226d Changes to prepare for switch to TileLink interconnect
We are planning on switching to a TileLink interconnect throughout and
convert to AXI only on the very edge. Therefore, we need to get rid of
all the existing AXI masters other than the TileLink to AXI converter.

* Get rid of DMA engine for now
* Connect RTC to TileLink interconnect instead of AXI interconnect
2016-03-29 20:16:07 -07:00
jackkoenig
5378f79b50 Bump chisel3 and firrtl, add support for firrtl $ delimiter 2016-03-29 20:16:07 -07:00
Howard Mao
9b9c662952 fix w_last wire 2016-03-29 20:16:07 -07:00
Howard Mao
e1a03cc9ac fix issue with partial writemasks 2016-03-29 20:16:07 -07:00
Andrew Waterman
6c48dc3471 Use more sensible knob values for SmallConfig 2016-03-25 14:18:24 -07:00
Palmer Dabbelt
cddfdf0929 Add CHISEL_VERSION make argument
This allows users to specify if they want to build RocketChip against
Chisel 2 or 3.  Since Chisel 3 is now open source we can add these
submodule pointers directly to avoid a fork of upstream.
2016-03-24 12:00:13 -07:00
Palmer Dabbelt
d697559754 Correct the polarity of the non-backup-memory HTIF
This fails in FIRRTL because <> has polarity now.
2016-03-24 12:00:13 -07:00
Palmer Dabbelt
c989ec5813 Fix the SCR file for Chisel 3 2016-03-21 11:55:40 -07:00
Howard Mao
e90a9dfb2b make taking max of multiple integers in config a bit easier 2016-03-16 14:35:08 -07:00
Eric Love
4fc2a14a63 Fix MIF bug that cuts off upper xact id bits 2016-03-16 13:50:30 -07:00
Andrew Waterman
9dc0cbdfa4 WIP on privileged spec v1.9 2016-03-14 18:03:33 -07:00
Andrew Waterman
f2ded2721d Merge branch 'master' into add-rv32-support 2016-03-10 19:33:04 -08:00
Andrew Waterman
25091003af Add RV32 test/configuration options
These won't actually work until further commits.  Rocket RV32 support
is complete, but on the priv-1.9 branch.
2016-03-10 17:40:21 -08:00
Andrew Waterman
7a75a03123 tabs are evil 2016-03-10 14:18:56 -08:00
Howard Mao
3c9e63f5a5 don't make HTIF clock divider tied to backup memory 2016-03-09 14:58:20 -08:00
Howard Mao
5e145515e1 fix some Chisel assertions 2016-03-02 14:50:49 -08:00
Albert Magyar
a80b0e959d Add support for per-way cache metadata
Adds a new cache parameter (SplitMetadata) and an associated knob.

Closes #62
2016-03-01 13:03:24 -08:00
John Wright
ba96ad2b38 Move N_CORES and MMIO_BASE to SCRFile instance in RocketChip 2016-02-27 16:24:45 -08:00
Palmer Dabbelt
a0f3189c74 Change MIF_DATA_BITS back to 64
It turns out the Chisel C++ backend can't emit correct initialization
code for a 128 bit wide NastiROM.  Rather than trying to fix Chisel, I'm
just going to hack up the backup memory port Verilog harness a bit more
to make it work.

Note that the backup memory port Verilog already couldn't take arbitrary
parameters for MIF_*, so it's not like we're losing any flexibility
here.
2016-02-27 11:43:44 -08:00
Palmer Dabbelt
9ea8c4e781 Add an 8-channel backup memory port config
Now that the backup memory port works I want to test it.
2016-02-27 10:56:13 -08:00
Palmer Dabbelt
7319f430d0 Fix the backup memory port on multiple-channel configs
The backup memory port doesn't work on multi-channel configurations, it
just screws up the Nasti tag bits.  This patch always instantiates a
single-channel backup memory port, which relies on the memory channel
selector to only enable a single memory channel when the backup memory
port is enabled.  There are some assertions to make sure this happens,
as otherwise memory gets silently corrupted.

While this is a bit of a hack, the backup memory port will be going away
soon so I don't want to spend a whole lot of time fixing it.  The
generated hardware is actually very similar: we used to elaborate a
Nasti arbiter inside the backup memory support, now there's one outside
of it instead.
2016-02-27 10:47:52 -08:00
Palmer Dabbelt
7c0c48fac4 Resurrect the backup memory port
We need this to work for our chip, and it's not been tested in a long
time in upstream -- it didn't even used to build since the Nasti
conversion.  This makes a few changes:

 * Rather than calling the backup memory port parameters MEM_*, it calls
   them MIF_* (to match the MIT* paramater objects).  A new name was
   necessary because the Nasti stuff is now dumped as MEM_*, which has
   similar names but incompatible values.

 * p(MIFDataBits) was changed back to 128, as otherwise the backup
   memory port doesn't work (it only send half a TileLink transaction).
   64 also causes readmemh to bail out, but changing the elf2hex parameters
   works around that.

 * A configuration was added that enabled the backup memory port in the
   tester.  While this is kind of an awkward way to do it, I want to
   make sure I can start testing this regularly and this makes it easy to
   integrate.
2016-02-27 10:46:56 -08:00
Yunsup Lee
a2381d2faf RoCC PTW refactoring 2016-02-25 17:26:42 -08:00
Colin Schmidt
ef4915bd2c make the asm suites ordered by their insertion order 2016-02-24 19:49:35 -08:00
Colin Schmidt
ad81d95751 add run-asm-{p,pt,v}-tests targets for convenience 2016-02-24 19:49:35 -08:00
John Wright
b04cd545b6 pass base SCR address to SCRFile for address calculation 2016-02-24 15:32:46 -08:00
Howard Mao
8a877fa620 Add Matthew Naylor's trace generator and AXE scripts 2016-02-24 14:39:11 -08:00
Howard Mao
8c02cb09ca some additions to Travis and fixes for Testing 2016-02-23 23:37:29 -08:00
Palmer Dabbelt
c263c636b3 Actually reference all the tests from RISCV 2016-02-23 16:05:27 -08:00
Palmer Dabbelt
bae4c0c0c9 Point Testing to $RISCV/... not $base_dir/...
This uses the compiled tests in RISCV, which match the rest of the toolchain.
2016-02-23 10:58:51 -08:00
Colin Schmidt
4ce603e548 Memtest configs should not have a hex file loaded 2016-02-22 12:49:26 -08:00
Colin Schmidt
0c575403af only use a single asm test and 1 bmark for memtest 2016-02-22 09:36:53 -08:00
Howard Mao
5e4a02038c move FPGA AXI to HTIF converter into Chisel module 2016-02-19 13:53:31 -08:00
Palmer Dabbelt
926efd0cab Allow the number of memory channels to be picked at runtime
We're building a chip with 8 memory channels.  Since this will require a
complicated test setup we want to also be able to bring up the chip with fewer
memory channels.  This commit adds a SCR that controls the number of active
memory channels on a chip.  Toggling this SCR will scramble memory and drop
Nasti messages, so it's only possible to change while the chip is booting.

By default this just adds a 1-bit SCR, which essentially no extra logic.

When multiple memory channel configurations are enabled at elaboration time, a
NastiMemoryInterconnect is generated for each channel configuration.  The
number of outstanding misses is increased to coorespond to the maximum number
of banks per memory channel (added as a parameter), which I believe is
necessary to avoid deadlock in the memory system.

A configuration is added that supports 8 memory channels but has only 1 enabled
by default.
2016-02-17 15:23:30 -08:00
Palmer Dabbelt
db9de94588 Generate and use SCR address header files
This uses the new SCRFile changes to generate a header file containing a list
of all the SCRs in a core to remove the magic constant "63" (the HTIF clock
divider control register) and replace it with a generated number (which is
still 63).
2016-02-17 15:23:18 -08:00
Christopher Celio
c1b4d9372f Revert "add new parameters for new SCR file"
This reverts commit 4dad5b8b32.

The commit breaks the build.
2016-02-13 04:02:20 -08:00
Christopher Celio
6c6bbca92a Revert "use singleton for global"
This reverts commit 4d0f941de3.

The commit breaks the build.
2016-02-13 03:56:47 -08:00
John Wright
4d0f941de3 use singleton for global 2016-02-13 00:56:11 -08:00
John Wright
4dad5b8b32 add new parameters for new SCR file 2016-02-12 18:24:12 -08:00
Howard Mao
9fb2216548 get rid of unused external mmio port 2016-02-10 21:49:02 -08:00
Howard Mao
72a876bfba add NASTI to TL converter 2016-02-10 11:12:39 -08:00
Palmer Dabbelt
b2ed35e8aa Print a better error on missing config classes
Without this you don't actually see what config class you tried to use, which
makes it hard to grep around Makefiles to see why things are broken.
2016-02-05 09:59:02 -08:00
Palmer Dabbelt
8422aaf6fc Add a "/" when targetDir doesn't have one
This isn't Chisel 3 specific, but that's what I happened to do in the Chisel 3
Driver wrapper.
2016-02-05 09:57:47 -08:00
Palmer Dabbelt
3bb0f11e6c Chisel3 <> reverse fix 2016-02-05 09:56:42 -08:00
Howard Mao
06c3f9b655 Rocket Chip fixes in response to lowRISC team's comments
* DMA frontend-backend communication tunneled over TileLink/AXI
 * Split MMIO and Mem requests in l1tol2net instead of in AXI interconnect
 * Don't make NIOMSHRs configurable. Fixed at 1.
 * Connect accelerator-internal CSRs into the CSR file
 * Make mtvec register configurable and writeable
2016-02-02 13:14:52 -08:00
Howard Mao
33aa64212d fix more Chisel3 deprecations 2016-01-14 15:06:30 -08:00