riscv/rocket-chip
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Author SHA1 Message Date
Albert Magyar
ab30983aa9 Add support for per-way cache metadata 
Exposes new parameter field SplitMetadata to determine whether the metadata array in a particular cache is stored in a single SeqMem or with one SeqMem per way.

Closes #14
 2016-03-01 12:19:42 -08:00
Howard Mao
6d984273b7 finally fix all release assertions ... hopefully 2016-02-29 15:22:24 -08:00
John Wright
6095e7361e Move N_CORES and MMIO_BASE to SCRFile instance in RocketChip 2016-02-27 16:19:25 -08:00
Palmer Dabbelt
ebffd69b8e Provide both __OFFSET and __PADDR for SCR entries 
This was recently changed to write out physical addresses for SCR file entries,
but to bring up the chip we need SCR offsets so we can write the uncore SCR
file over HTIF.  This changes the map generator to generate both.

Without this change things happened to work anyway because the high bits were
getting dropped by the SCR file.
 2016-02-25 21:48:32 -08:00
John Wright
19420cd5df add utility overloads of SCRIO.attach, pass base address so that generated c header is correct, and print debug messages/header in hex instead of decimal 2016-02-24 15:26:55 -08:00
Howard Mao
8873222e42 fix cache release assertion 2016-02-23 16:03:51 -08:00
Henry Cook
929d8e31f7 refactor ready/valid logic for routing release messages in the l2 2016-02-19 16:30:26 -08:00
Howard Mao
f97bd70df5 add NastiIO to HostIO converter 2016-02-19 11:21:23 -08:00
Palmer Dabbelt
1ac9f59b31 Allow SCR files to be enumerated in C headers 
Right now there's no way to ensure that SCR addresses don't conflict within
RocketChip.  Since upstream only has one of them this isn't a big deal, but we
want to add a whole bunch more to control all the IP on Hurricane.

This patch adds some Scala code to allocate registers inside the SCR file,
ensure they don't conflict, to provide names for SCRs, attach registers to the
SCR file, and generate a C header file that contains the addresses of every SCR
on a chip.

With this patch we'll be able to get rid of that constant in the testbench.
This also allows us to kill one of the Raven diffs, which is does pretty much
the same thing (just in a second SCR file, and hacked in).
 2016-02-17 14:21:12 -08:00
Howard Mao
53ad8387cc add NASTI to TL converter 2016-02-10 11:06:52 -08:00
Howard Mao
2825b2d645 make sure TL to NASTI converter handles MT_WU 2016-02-10 11:06:41 -08:00
Howard Mao
66e9cc8c82 make sure CSR width is parameterizable 2016-02-02 12:49:58 -08:00
Howard Mao
adaec18bec add TL manager for MMIO requests 2016-02-02 12:49:58 -08:00
Howard Mao
c1fe188c81 some fixes to RTC 2016-02-02 12:49:58 -08:00
Howard Mao
ba94010928 DMA requests should go through MMIO 2016-02-02 12:49:58 -08:00
Howard Mao
0dc8cd5b11 move ReorderQueue and DecoupledHelper to junctions 2016-01-21 15:36:22 -08:00
Andrew Waterman
2946bc928e Avoid muxing between bundles of different size 2016-01-16 19:01:24 -08:00
Howard Mao
4ff1aea288 fix more Chisel3 deprecations 2016-01-14 14:55:45 -08:00
Andrew Waterman
0b90b8fe5f Avoid zero-width wire case :-/ 2016-01-12 15:32:29 -08:00
Andrew Waterman
a953ff384a Chisel3 compatibility: use more concrete types 2016-01-12 15:32:14 -08:00
Howard Mao
c81745eb8e lowercase SMI to Smi 2016-01-11 16:18:44 -08:00
Howard Mao
d0a14c6de9 separate TileLink converter/wrapper/unwrapper/narrower into separate file 2016-01-11 16:14:56 -08:00
Howard Mao
46069ea13b implement streaming DMA functionality 2016-01-06 21:37:56 -08:00
Henry Cook
09f3c5a6e3 Merge pull request #6 from ucb-bar/dma 
Implement DMA engine
 2015-12-21 13:54:38 -08:00
Howard Mao
872b162e1b implement DMA engine 2015-12-16 21:27:31 -08:00
Howard Mao
8a61177224 generalize TwoWayCounter 2015-12-16 21:07:30 -08:00
Howard Mao
a48237f36d get rid of the rest of the PutBlock special casing in L2 2015-12-16 20:56:29 -08:00
Albert Magyar
922b1adc9c Add optional PLRU replacement to the L2 2015-12-16 10:00:56 -08:00
Howard Mao
ddc79674f9 fix some issues with cache request merging 2015-12-15 21:31:02 -08:00
Howard Mao
e71293e2ae fix bug in narrower logic 2015-12-06 02:58:12 -08:00
Sagar Karandikar
93aa370b87 yunsup's fix for dgemm-opt assertion failure 2015-12-03 14:03:10 -08:00
Andrew Waterman
e52685f2e9 Fix LoadGen zero flag 2015-11-25 20:52:30 -08:00
Andrew Waterman
27df04354f Add ROM with NASTI interface 2015-11-25 20:04:31 -08:00
Andrew Waterman
57e82442a1 Make LoadGen and StoreGen generic 2015-11-24 18:12:42 -08:00
Howard Mao
ee6514e4f4 make sure WritebackUnit sends correct probe addresses 2015-11-21 15:55:11 -08:00
Howard Mao
04383a31f5 Revert "make sure L2MetadataArray assigns unoccupied way if available" 
This reverts commit 1857f36c1e6f2b2859c724eea6ae3cfb2618f81b.
 2015-11-21 10:35:40 -08:00
Howard Mao
3c95afebc6 Shift set index for multi-bank configurations 
Prior to this commit, the L2 cache banks used the lower bits of the
block address as the set index. However, the lower bits are also used to
route addresses to different banks. As a result, in multi-bank
configurations, only a fraction of the sets in each bank could be
accessed. This commit fixes that problem by using the bits ahead of the
bank index as the set index, so that all sets in the cache can be
accessed.
 2015-11-20 23:24:57 -08:00
Howard Mao
55a85cc67a make sure wmask is passed for PutBlock in broadcast hub 2015-11-20 14:09:24 -08:00
Howard Mao
941b64cd62 make partial write-masking PutBlock constructor always set alloc bit 2015-11-20 13:34:07 -08:00
Howard Mao
24f7b9f472 make sure L2MetadataArray assigns unoccupied way if available 2015-11-19 10:45:54 -08:00
Howard Mao
e50c7ad306 add NASTI error assertions back in 2015-11-18 17:05:54 -08:00
Henry Cook
2b977325e3 Make prefetch type available in a_type, issue probeInvalidates for putPrefetches 2015-11-16 23:26:13 -08:00
Andrew Waterman
d426ecee78 Remove IPI network 
This is now provided via MMIO.
 2015-11-16 21:52:24 -08:00
Henry Cook
0290635454 amo_shift_bits -> amo_shift_bytes 2015-11-16 19:07:58 -08:00
Henry Cook
64aaf71b06 L2AcquireTracker refactor to support merging Gets and Puts into Prefetches of the correct type. 
Transaction metadata for primary and seconday misses now stored in the secondary miss queue.

Added BuiltInAcquireBuilder factory.
 2015-11-16 18:10:09 -08:00
Henry Cook
03fa06e6e7 fix prefetch lockup on L2 hit 2015-11-15 12:51:34 -08:00
Howard Mao
e12efab423 skip meta_write state if no meta write pending 2015-11-13 13:50:35 -08:00
Howard Mao
7e7d688a01 make sure L2 passes no-alloc acquires through to outer memory 2015-11-12 15:40:58 -08:00
Howard Mao
b3865c370a make sure correct addr_beat is sent for Get response by narrower/converter 2015-11-12 15:40:38 -08:00
Howard Mao
f397d61033 add alloc option to Put constructor 2015-11-12 11:39:59 -08:00