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Commit Graph

11 Commits

Author SHA1 Message Date
Wesley W. Terpstra
147fad6387
Fix AXI4 FIFO ordering for masters with early source reuse (#1108)
* TLToAXI4: fix WaR for single-source FIFO masters
* TLToAXI4: fix potential counter overflow => WaR hazard

If you have a FIFO master with 2^n-1 sources that performs early
source re-use, the old code could potentially break FIFO order.
2017-11-13 20:32:09 -08:00
Wesley W. Terpstra
16116991e7
Fix stateless caching (#1084)
* tilelink: ToAXI4 should format it's error message

* WithStatelessBridge: mark the memory bus incoherent and cacheable

... and hope that the user doesn't put more than one master down.
2017-11-01 11:05:56 -07:00
Wesley W. Terpstra
2d12ddb4ed tilelink: ToAXI4 makes R channel errors sticky 2017-10-30 21:09:45 -07:00
Wesley W. Terpstra
6aac658184 diplomacy: convert all helper objects to return nodes 2017-10-28 11:34:16 -07:00
Wesley W. Terpstra
8b58327fa4 axi4: conversion from TL does not need beatBytes (#1051)
We used to pack the addr_lo into user bits. We don't do that anymore.
There is thus no need to waste those bits, nor to pass that arg.
2017-10-12 16:41:54 -07:00
Wesley W. Terpstra
9217baf9d4 diplomacy: change API to auto-create node bundles => cross-module refs 2017-09-22 15:01:39 -07:00
Wesley W. Terpstra
d89ee9d9d4 nodes: grab a name on construction 2017-09-22 14:38:47 -07:00
Jacob Chang
b4fc5104d4 Add cover property API that can be refined through Config PropertyLibrary (#998) 2017-09-19 19:26:54 -07:00
Wesley W. Terpstra
e831acba9c adapters: support bulk connections 2017-09-07 16:03:35 -07:00
Wesley W. Terpstra
9804bdc34e tilelink: remove obsolete addr_lo signal (#895)
When we first implemented TL, we thought this was helpful, because
it made WidthWidgets stateless in all cases. However, it put too
much burden on all other masters and slaves, none of which benefitted
from this signal. Furthermore, even with addr_lo, WidthWidgets were
information lossy because when they widen, they have no information
about what to fill in the new high bits of addr_lo.
2017-07-26 16:01:21 -07:00
Henry Cook
4c595d175c Refactor package hierarchy and remove legacy bus protocol implementations (#845)
* Refactors package hierarchy.

Additionally:
  - Removes legacy ground tests and configs
  - Removes legacy bus protocol implementations
  - Removes NTiles
  - Adds devices package
  - Adds more functions to util package
2017-07-07 10:48:16 -07:00