Wesley W. Terpstra
b74a419bfb
FrontBus: FIFOFixer should not have a buffer between it and Xbar
2017-09-05 16:27:57 -07:00
Megan Wachs
e9e46db600
sync reg: Rename the file to reflect the more generic shift registers also in the file.
2017-09-05 15:54:25 -07:00
Megan Wachs
5df23c5514
Synchronizers: remove some newlines and unncessary gen's
2017-09-05 15:17:21 -07:00
Wesley W. Terpstra
e65f49b89a
FrontBus: attach to splitter for cross-chip visibility
2017-09-05 15:03:41 -07:00
Wesley W. Terpstra
5886025b1a
sbus => pbus: 2 buffers should already be enough
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There is a buffer on the sbus backside.
There is a buffer on the pbus frontside.
Between them is only an AtomicAutomata.
That should be enough for most designs.
2017-09-05 15:03:38 -07:00
Henry Cook
a902e15987
pbus: clarify that we are adding buffers when attaching to sbus
2017-09-05 15:03:38 -07:00
Henry Cook
8fc4d78c84
frontbus: provide fifofixer on the side of the front bus where masters connect
2017-09-05 15:03:38 -07:00
Megan Wachs
667d966410
TLBuffer: Create a wrapper module for TLBufferChain, to allow for more stable naming
2017-09-05 15:03:38 -07:00
Megan Wachs
94f06dc85c
pbus: turn down overkill buffering between PBus and SBus
2017-09-05 15:03:38 -07:00
Megan Wachs
c353f68dc0
buses: name dummy buffers too
2017-09-05 15:03:38 -07:00
Henry Cook
3bde9506c6
coreplex: allow buffer chains on certain bus ports
2017-09-05 15:03:36 -07:00
Megan Wachs
57d0360c35
frontbus: Name the connection.
2017-08-30 18:07:34 -07:00
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
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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
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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
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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 )
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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
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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
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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
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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
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a62e76cb16
2017-08-17 21:27:08 -07:00
Shreesha Srinath
b1719cfee0
Fixing requirements for PAddrBits ( #961 )
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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
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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
