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Commit Graph

5114 Commits

Author SHA1 Message Date
Megan Wachs 85c39b2f97 syncregs: Not sure the use case for SynchronizerShiftRegInit, so remove it YAGNI 2017-08-24 17:47:04 -07:00
Megan Wachs 4e773f4738 syncregs: Use synchronizer primivites for LevelSyncCrossing 2017-08-24 17:42:31 -07:00
Megan Wachs 130b24355f syncregs: Use synchronizer primitives for IntXing 2017-08-24 17:39:07 -07:00
Megan Wachs 8b462d1595 syncregs: Use common primitives for AsyncQueue grey code synchronizers 2017-08-24 17:34:07 -07:00
Megan Wachs 3461cb47cc syncregs: Make Reset catcher use the synchronizer primitive 2017-08-24 17:26:38 -07:00
Megan Wachs c78ee9f0e4 syncreg: Refactor common code 2017-08-24 17:18:04 -07:00
Megan Wachs d83a6dc6af syncregs: Add utilities for Synchronizing Shift Registers 2017-08-24 16:55:17 -07:00
Megan Wachs bdaae40035 Merge pull request #973 from freechipsproject/named_buffers
systemBus: allowing naming the TLBuffers which get inserted
2017-08-24 16:31:14 -07:00
Megan Wachs 7f683eeb24 async_regs: Make modules have predictable names 2017-08-24 15:33:53 -07:00
Megan Wachs 0f75ebee92 async_reg: Rename the file to match scalastyle 2017-08-24 15:31:29 -07:00
Megan Wachs 103b6bc6d3 systemBus: allowing naming the TLBuffers which get inserted 2017-08-24 14:49:12 -07:00
Wesley W. Terpstra 17134125e1 SystemBus: remove misnamed functions (#972)
These functions were actually for cross connecting chips.
2017-08-24 23:35:01 +02:00
Megan Wachs 6e689f55ed Merge pull request #965 from freechipsproject/quash_x
async_reset_reg: Squash X's the same as for synchronous reg
2017-08-21 16:48:25 -07:00
Megan Wachs 81890e3a42 async_reg: Clean up some funky indentation 2017-08-21 16:06:36 -07:00
Megan Wachs 4f45379863 async_reset_reg: Squash X's the same as for reset reg 2017-08-21 14:33:19 -07:00
Andrew Waterman 82df766f4a Merge pull request #963 from freechipsproject/interrupt-order
Respect ISA requirements on interrupt priority order
2017-08-18 00:10:19 -07:00
Andrew Waterman 8087a205cc Remove redundant check in interrupt priority encoding
chooseInterrupts already sorts M interrupts above S interrupts.
2017-08-17 22:23:42 -07:00
Andrew Waterman cbe7c51b50 Respect ISA requirements on interrupt priority order
https://github.com/riscv/riscv-isa-manual/commit/a62e76cb16eb508199f74632eb8bf263739f25a3
2017-08-17 21:27:08 -07:00
Shreesha Srinath b1719cfee0 Fixing requirements for PAddrBits (#961)
Previously, the requirement for PAddrBits only checked to be equal or greater than the bundle bits. Changing it to check for these to match exactly as for cases when the PAddrBits greater than address bits we could run into scenarios which cause possible address wrap around issues.
2017-08-17 11:53:59 -07:00
Megan Wachs 1db4b3be9a Merge pull request #957 from freechipsproject/param_jtag_vpi
jtag_vpi: Use Parameterized Black Box
2017-08-14 18:37:30 -07:00
Megan Wachs 8783d51c97 jtag_vpi: Use Parameterized Black Box to allow TestHarnesses to override the clock speed 2017-08-14 17:25:47 -07:00
Wesley W. Terpstra 710a782145 HeterogenousBag: empty bags were being combined! (#956)
This lead to strange firrtl errors when you had two empty
HeterogeneousBags in the same Bundle.
2017-08-14 15:48:42 -07:00
Andrew Waterman e945f6e265 Merge pull request #955 from freechipsproject/fix-acquire-before-release
Fix acquire before release
2017-08-13 18:29:58 -07:00
Megan Wachs 57a5965bf4 Merge pull request #954 from freechipsproject/max-core-cycles
Add a +max-core-cycles PlusArg
2017-08-13 16:45:59 -07:00
Megan Wachs 88332bd885 max-core-cycles: Add a +max-core-cycles PlusArg 2017-08-13 15:47:14 -07:00
Andrew Waterman 3cbc5262ec Don't permit new acquires until the release queue is drained
If the queue is not empty before a dirty miss, C could block D.
I haven't seen this in the wild, but it could happen because of
dirty probe responses backed up in the queue.
2017-08-13 13:18:45 -07:00
Andrew Waterman 0190724492 Actually use the C-channel acquire-before-release queue
oops...
2017-08-13 13:03:35 -07:00
Andrew Waterman 41a2a03f90 Merge pull request #953 from freechipsproject/fix-dcache-ecc
Don't trigger ECC writebacks when a release is in flight
2017-08-12 16:47:19 -07:00
Andrew Waterman 7387f2a93a Don't block D-channel when handling a probe
This is an acquire-before-release regression.
2017-08-12 16:13:24 -07:00
Andrew Waterman 604abd5b07 Only report ECC errors when the RAM was actually read 2017-08-12 15:28:03 -07:00
Andrew Waterman 18fb052fc9 DRY 2017-08-12 15:27:30 -07:00
Andrew Waterman 176110b6d3 Don't trigger ECC writebacks when a release is in flight 2017-08-12 15:23:57 -07:00
Wesley W. Terpstra f191bb994c PatternPusher: can now expect a certain output (#952) 2017-08-11 18:10:27 -07:00
Wesley W. Terpstra baf769f924 tilelink: add PatternPusher, a device to inject a fixed traffic pattern (#950) 2017-08-11 15:07:10 -07:00
Andrew Waterman a3358f34a0 Fix priority inversion for two back-to-back divides (#948)
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
Wesley W. Terpstra fa867bc478 plusarg_reader: make synthesis path a no brainer (#947) 2017-08-10 16:35:30 -07:00
Andrew Waterman 0a591c5b5b Roll back use of UIntToOH1 (#946)
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
Yunsup Lee 0b8b136831 Merge pull request #943 from freechipsproject/fix-ibuf
Fix IBuf bug
2017-08-09 10:38:35 -07:00
Andrew Waterman 721770244e Fix IBuf bug
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
Yunsup Lee fb2c22ca80 Merge pull request #944 from freechipsproject/fix-vlsi-mem-gen
memgen: also randomize ren and rand register
2017-08-08 23:18:08 -07:00
Andrew Waterman 31b75987ca Avoid width warning 2017-08-08 20:57:31 -07:00
Yunsup Lee 8705b0e070 memgen: also randomize ren and rand register 2017-08-08 20:41:53 -07:00
Richard Xia 97ad528a32 Merge pull request #941 from freechipsproject/bump-riscv-tools
Bump riscv-tools to bump riscv-tests for mi-csr test fix.
2017-08-08 18:50:29 -07:00
Wesley W. Terpstra 49ba31ac34 Merge pull request #942 from freechipsproject/bus-blocker-lock
Bus blocker lock
2017-08-08 18:03:36 -07:00
Wesley W. Terpstra a9b1410f01 BusBlocker: parameterize page granularity 2017-08-08 17:10:01 -07:00
Wesley W. Terpstra 010ba94474 BusBlocker: rename a variable 2017-08-08 17:00:22 -07:00
Wesley W. Terpstra 6d6fc38787 BusBlocker: lock bit should affect the prior PMP address, not next 2017-08-08 17:00:12 -07:00
Richard Xia 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
Yunsup Lee 0a351f677d Merge pull request #940 from freechipsproject/fix-ecc-way
Don't merge stores that manifest WAW hazards
2017-08-08 16:05:21 -07:00
Yunsup Lee 8cc41ab46b Merge pull request #936 from freechipsproject/vlsi-mem-gen
Improve and use vlsi_mem_gen for verilator flow
2017-08-08 16:04:53 -07:00