f191bb994c
PatternPusher: can now expect a certain output ( #952 )
2017-08-11 18:10:27 -07:00
baf769f924
tilelink: add PatternPusher, a device to inject a fixed traffic pattern ( #950 )
2017-08-11 15:07:10 -07:00
a3358f34a0
Fix priority inversion for two back-to-back divides ( #948 )
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If the first one is killed for some unrelated reason (e.g. write port
hazard), the second one will still issue to the div-sqrt unit. While
it will itself later be killed, the fact that the later instruction
acquires a resource needed by the former instruction leads to deadlock.
2017-08-10 17:12:09 -07:00
fa867bc478
plusarg_reader: make synthesis path a no brainer ( #947 )
2017-08-10 16:35:30 -07:00
0a591c5b5b
Roll back use of UIntToOH1 ( #946 )
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These appear to be equivalent, but the old one seems to fail in Vivado and
this one seems to pass. This is not yet conclusive.
2017-08-09 18:39:47 -07:00
0b8b136831
Merge pull request #943 from freechipsproject/fix-ibuf
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Fix IBuf bug
2017-08-09 10:38:35 -07:00
721770244e
Fix IBuf bug
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Don't examine a packet's xcpt signal if it might be invalid. In this case,
the correct fix is to not examine xcpt at all; the deleted code was vestigial.
(Note, the other use of xcpt(j+1) in this code is indeed safe.)
2017-08-09 09:47:51 -07:00
fb2c22ca80
Merge pull request #944 from freechipsproject/fix-vlsi-mem-gen
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memgen: also randomize ren and rand register
2017-08-08 23:18:08 -07:00
31b75987ca
Avoid width warning
2017-08-08 20:57:31 -07:00
8705b0e070
memgen: also randomize ren and rand register
2017-08-08 20:41:53 -07:00
97ad528a32
Merge pull request #941 from freechipsproject/bump-riscv-tools
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Bump riscv-tools to bump riscv-tests for mi-csr test fix.
2017-08-08 18:50:29 -07:00
49ba31ac34
Merge pull request #942 from freechipsproject/bus-blocker-lock
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Bus blocker lock
2017-08-08 18:03:36 -07:00
a9b1410f01
BusBlocker: parameterize page granularity
2017-08-08 17:10:01 -07:00
010ba94474
BusBlocker: rename a variable
2017-08-08 17:00:22 -07:00
6d6fc38787
BusBlocker: lock bit should affect the prior PMP address, not next
2017-08-08 17:00:12 -07:00
dd5934b6dc
Bump riscv-tools to bump riscv-tests for mi-csr test fix and pull in stable binutils.
2017-08-08 16:29:26 -07:00
0a351f677d
Merge pull request #940 from freechipsproject/fix-ecc-way
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Don't merge stores that manifest WAW hazards
2017-08-08 16:05:21 -07:00
8cc41ab46b
Merge pull request #936 from freechipsproject/vlsi-mem-gen
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Improve and use vlsi_mem_gen for verilator flow
2017-08-08 16:04:53 -07:00
809c7e8551
Don't merge stores that manifest WAW hazards
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The following sequence would drop the first store when eccBytes=4:
sb x0, 0(t0)
nop
sb x0, 4(t0)
nop
sb x0, 1(t0)
Because the first and second store are to different ECC granules, the
hazard check correctly allowed the second one to proceed, but the third
was merged with the second, even though it conflicted with the first.
So, don't allow the third to be merged with the second, since the second
stored to a different ECC granule.
2017-08-08 15:19:05 -07:00
3ef6e4c9f2
Merge pull request #939 from freechipsproject/bus-blocker
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tilelink: PMP controlled BusBlocker prevents bus accesses
2017-08-08 15:06:55 -07:00
82e13443b2
Merge pull request #937 from freechipsproject/critical-paths
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Perform tag error detectoin/correction in same cycle as RAM
2017-08-08 15:03:28 -07:00
dd103ae7ec
Merge pull request #938 from freechipsproject/dtim-ignore-cacheable
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Don't report to the DTIM that data is cacheable
2017-08-08 15:00:13 -07:00
8f261adc6b
BusBlocker: change default policy to deny
2017-08-08 14:19:59 -07:00
0d76e96b88
tilelink: PMP controlled BusBlocker prevents bus accesses
2017-08-08 13:28:01 -07:00
7935c61c19
Don't report to the DTIM that data is cacheable
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Otherwise, it will attempt to perform AMOs where they're unsupported!
2017-08-08 11:55:04 -07:00
74d309c18e
Make I vs. D a static property of TLB, not an input pin
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The microarchitecture doesn't really support unified TLBs, so don't fake it.
2017-08-08 11:54:47 -07:00
e92981b0bd
DRY
2017-08-08 11:46:38 -07:00
62ccba304c
Perform tag error detectoin/correction in same cycle as RAM
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The tag RAMs tend to be fast, so take up some of the slack.
This makes s2_nack faster.
2017-08-08 10:21:30 -07:00
6d1d285464
Merge pull request #933 from freechipsproject/cinst
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Print out the compressed instruction when executing one
2017-08-07 21:40:10 -07:00
ea4b1bc349
Use vlsi_mem_gen for verilator flow
2017-08-07 20:36:22 -07:00
b0f32c8f09
Randomize disabled read ports in vlsi_mem_gen
2017-08-07 20:35:40 -07:00
cc1e2af336
Merge pull request #934 from freechipsproject/critical-paths
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Revert "Remove one gate from D$ ECC check"
2017-08-07 19:41:08 -07:00
c8f8806df0
Merge pull request #932 from freechipsproject/tl-bus-delayer
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tilelink: allow insertion of TLDelayer on TLBus outward node
2017-08-07 19:01:39 -07:00
c4092dd0cc
tilelink: improve entropy of bus delayer
2017-08-07 17:36:07 -07:00
402907990c
Revert "Remove one gate from D$ ECC check"
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This reverts commit 7d94074b05
2017-08-07 17:33:20 -07:00
2910d6fa2a
tilelink: make bus xbar protected so it can be suggestNamed
2017-08-07 17:30:24 -07:00
fc0d5fcf98
Print out the compressed instruction when executing one
2017-08-07 17:21:53 -07:00
e27072e063
Merge pull request #931 from freechipsproject/fix-ram-model-source-reuse
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Fix ram model source reuse
2017-08-07 16:56:13 -07:00
c457c9cb9f
tilelink: allow insertion of TLDelayer on TLBus outward node
2017-08-07 16:43:06 -07:00
d5a135914b
Revert "Disable AMBAUnitTestConfig, as it is blocking unrelated PRs"
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This reverts commit 39b7e930ca
2017-08-07 16:04:02 -07:00
03002b3106
Merge pull request #930 from freechipsproject/fix-maskrom
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maskrom: retain data for d channel is not ready
2017-08-07 16:01:38 -07:00
f8b45564d1
tilelink: RAMModel must support source reuse
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If a multibeat response comes back, the source might be reused.
If response reordering has made the multibeat response invalid,
we need to remember this even if the valid bit is cleared on reuse.
2017-08-07 16:01:15 -07:00
558fc7f293
maskrom: retain data for d channel is not ready
2017-08-07 12:17:10 -07:00
aff028f8f0
Merge pull request #926 from freechipsproject/bump-tools
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bump riscv-tools
2017-08-06 23:04:55 -07:00
3d0051e799
bump tools for test fixes
2017-08-06 22:36:25 -07:00
7fd8bb1159
Merge pull request #928 from freechipsproject/critical-paths
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Critical paths
2017-08-06 18:50:59 -07:00
658e36f98b
Reduce fanout on frontend io.cpu.req.valid signal
2017-08-06 17:38:51 -07:00
7d94074b05
Remove one gate from D$ ECC check
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The D$ corrects via writeback, so which word the error was in doesn't
matter, as the entire line is corrected.
2017-08-06 17:36:53 -07:00
d03fdc4f30
diplomacy: seal the LazyModuleImpLike trait ( #927 )
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This makes sure that all the base classes call instantiate()
2017-08-06 17:32:23 -07:00
5030a8b15a
Merge pull request #925 from freechipsproject/fix-lazy-raw-modules
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diplomacy: provide default clock/reset for LazyRawModuleImp
2017-08-06 14:42:14 -07:00
