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Commit Graph

5181 Commits

Author SHA1 Message Date
Megan Wachs c99afe4c66 buses: Name all the things. 2017-08-30 17:31:42 -07:00
Henry Cook 32cb358c81 coreplex: include optional tile name for downstream name stabilization 2017-08-30 15:48:55 -07:00
Megan Wachs 183fefb2b9 Front/SystemBus: allow naming the intermediate TLNodes that get sprinkled in 2017-08-30 15:27:56 -07:00
Wesley W. Terpstra d5b62dffda SystemBus: add stupidly many (4 more) buffers from sbus=>pbus
This should probably be reverted.
2017-08-30 14:22:49 -07:00
Henry Styles f7330028cc Add optional frontbus for peripherals mastering into SBus. Switch FF and Buffer order on non-tile masters into SBus. Buffer non-L2 side of splitter 2017-08-30 14:22:49 -07:00
Wesley W. Terpstra 173f185b17 Merge pull request #976 from freechipsproject/system-buffer
SystemBus: add output buffering
2017-08-30 23:22:13 +02:00
Wesley W. Terpstra 656609d610 SystemBus: split FIFOFixers along bus boundaries
If you have a system with a lot of periphery slaves, you wan to FIFO fix
them on the periphery bus rather than paying the circuit cost at the sbus.
2017-08-30 13:28:11 -07:00
Megan Wachs a3bc5f2e33 synchronizers: Add a generic shift register and then extend from it, since an asynchronously resettable shift register is also a useful primitive 2017-08-30 12:59:16 -07:00
Megan Wachs 8139014c9e syncrhonizers: Remove unused sync from superclass 2017-08-30 12:33:03 -07:00
Megan Wachs 9dd6c4c32d synchronizers: New chisel ways of cloning type and use simpler lambda function 2017-08-30 12:11:14 -07:00
Megan Wachs bd32f0c122 synchronizers: properly pass parameters up to the superclass 2017-08-30 11:58:25 -07:00
Megan Wachs 483e63da19 synchronizers: Correctly pass the width through 2017-08-30 11:50:25 -07:00
Megan Wachs 91c3fa2865 Merge pull request #979 from freechipsproject/buffer_params_debuginfo
TLBuffer: Add a nodedebugstring
2017-08-29 17:52:50 -07:00
Megan Wachs a62ce0afe6 TLBuffer: Add a nodedebugstring for quick browsing of the properties of the buffer. 2017-08-29 10:36:46 -07:00
Megan Wachs c473538e36 Merge remote-tracking branch 'origin/master' into async_reg 2017-08-28 17:19:03 -07:00
Megan Wachs 451334ac73 Add 1-deep synchronizer register for output of AsyncQueue 2017-08-28 17:18:54 -07:00
Wesley W. Terpstra bf19440db5 SystemBus: use a full buffer on slaves 2017-08-26 02:47:04 -07:00
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