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531 Commits

Author SHA1 Message Date
Wesley W. Terpstra
fee67c4abf diplomacy: add methods to find {out,in}ner-most common node 2016-10-25 15:58:09 -07:00
Wesley W. Terpstra
67ab27f5a5 diplomacy: guess the LazyModule name from the containing class 2016-10-25 15:58:09 -07:00
Wesley W. Terpstra
4d50733548 tilelink2 ToAXI4: use helper method for a_last (#418) 2016-10-25 10:16:42 -07:00
Wesley W. Terpstra
a5ac106bb8 axi4 ToTL: fix decode error arbitration (#417) 
When selecting between error generation on R and real data on R,
correctly calculate the R backpressure.

This bug manifests when a valid request is immediately followed by
an invalid request, wedging the R channel.
 2016-10-24 22:15:19 -07:00
Wesley W. Terpstra
4c815f7958 tilelink2 Parameters: fix {contains,supports}Safe (#416) 
When there is only one manager, you still want to know if the address
was wrong on the link to that manager!
 2016-10-24 20:37:04 -07:00
Wesley W. Terpstra
8bfd6bcd4d axi4: ensure we accept AR before reporting R (#411) 2016-10-21 21:02:05 -07:00
Wesley W. Terpstra
7c334e3c34 axi4 ToTL: shorter critical path on Q.bits if errors go first 2016-10-17 01:00:49 -07:00
Wesley W. Terpstra
73010c79a3 axi4 ToTL: handle bad AXI addresses 2016-10-17 00:12:26 -07:00
Wesley W. Terpstra
501d6d689f axi4: Test ToTL 2016-10-16 22:04:06 -07:00
Wesley W. Terpstra
5a1da63b5a axi4: prototype ToTL adapter 2016-10-16 22:04:01 -07:00
Wesley W. Terpstra
72e5a97d40 tilelink2: factor out the OH1ToOH function 2016-10-16 22:04:01 -07:00
Wesley W. Terpstra
d09f43c32f axi4 Bundles: add a size calculation helper 
The old version was wrong.
Inverting before the << has a different width.
This means you end up with high bits set.
 2016-10-16 22:04:01 -07:00
Wesley W. Terpstra
20288729b9 tilelink2 Isolation: cross the valid signals as well 
Refactor the code to be less copy-pasty
 2016-10-14 18:28:36 -07:00
Wesley W. Terpstra
ac0bb841da AsyncQueue: cope with far reset propagation delay 2016-10-14 18:05:35 -07:00
Wesley W. Terpstra
8f3c2ddfc3 tilelink2 Crossing: these asserts should be done by the AsyncQueue 2016-10-14 16:54:09 -07:00
Wesley W. Terpstra
a82cfb8306 tilelink2: replace addr_hi with address (#397) 
When faced with ambiguous routing of wmask=0, we decided to include
all the address bits. Hopefully in most cases the low bits will be
optimized away anyway.
 2016-10-14 14:09:39 -07:00
Wesley W. Terpstra
54b73aef57 tilelink2: WidthWidget and Fragmenter no longer erase latency 2016-10-13 17:02:18 -07:00
Wesley W. Terpstra
200cf3dd13 tilelink2 Nodes: include some options to test for conformance 2016-10-13 17:02:18 -07:00
Wesley W. Terpstra
5d5b5a66f4 tilelink2 RAMModel: fix a write-bad-data bug 2016-10-13 17:02:17 -07:00
Wesley W. Terpstra
e5a1483358 tilelink2 Fragmenter: eliminate most of the registers on A 2016-10-13 17:02:17 -07:00
Wesley W. Terpstra
99c7003d11 tilelink2: allow preemption of Fragmenter and WidthWidget 2016-10-13 17:02:17 -07:00
Wesley W. Terpstra
b42cfdc9dd tilelink2 Arbiter: there is only one winner 2016-10-13 17:02:17 -07:00
Wesley W. Terpstra
b6e9b0c558 tilelink2 Arbiter: allow preemption of first beat 2016-10-13 17:02:17 -07:00
Wesley W. Terpstra
0aebf9e341 tilelink2 ToAXI4: no arbitration path register needed 2016-10-13 17:02:17 -07:00
Wesley W. Terpstra
0e897b905f tilelink2 RegisterRouter: data path register is no longer required 2016-10-13 17:02:17 -07:00
Wesley W. Terpstra
c4eadd3ab3 tilelink2 Monitor: enforce stricter transaction ordering 2016-10-13 17:02:17 -07:00
Wesley W. Terpstra
d8a1163131 tilelink2 Monitor: don't enforce Irrevocable any more 2016-10-13 17:02:17 -07:00
Wesley W. Terpstra
405f66da32 tilelink2 WidthWidget: cope with Decoupled inputs 2016-10-13 17:02:17 -07:00
Wesley W. Terpstra
e2e72ac979 tilelink2 Fragmenter: cope with Decoupled input 2016-10-13 17:02:17 -07:00
Wesley W. Terpstra
023c6402e9 tilelink2: switch to DecoupledIO syntax 2016-10-13 17:02:17 -07:00
Wesley W. Terpstra
4c1c52486b axi4 Fragmenter: handle more inflight AXI requests than we have space 2016-10-13 15:52:32 -07:00
Wesley W. Terpstra
8005266131 axi4 Fragmenter: refine sideband FSM for case of last fragment 2016-10-13 15:52:32 -07:00
Wesley W. Terpstra
19064e602b axi4 Fragmenter: align all output accesses 
We promised the output is aligned. Make good on that!
 2016-10-13 15:52:27 -07:00
Wesley W. Terpstra
84be93f9f3 axi4 Fragmenter: confirm correct handling of last 2016-10-13 14:01:23 -07:00
Wesley W. Terpstra
1c79a23a8b axi4 Fragmenter: initialize error response to 0 2016-10-13 13:46:24 -07:00
Wesley W. Terpstra
958af132ba axi4 Fragmenter: optimize dynamic slave lookup 2016-10-12 17:29:38 -07:00
Wesley W. Terpstra
11169d155c axi4: add a Buffer to put between nodes 2016-10-12 17:08:52 -07:00
Wesley W. Terpstra
a9a3f7dd4e tilelink2 RAMModel: include name of test in output 2016-10-12 17:08:52 -07:00
Wesley W. Terpstra
345eefd81b axi4: include unit tests 2016-10-12 17:08:52 -07:00
Wesley W. Terpstra
a6c6d99848 axi4: prototype Fragmenter 2016-10-12 17:08:49 -07:00
Wesley W. Terpstra
c918aa6d89 axi4: name AdapterNode parameters properly 2016-10-12 17:02:02 -07:00
Wesley W. Terpstra
a423f97844 axi4: parameterized AXI master constraint for aligned access 2016-10-12 17:02:02 -07:00
Wesley W. Terpstra
673cf1fdb5 tilelink2 ToAXI4: must create irrevocable D for now 2016-10-12 17:02:01 -07:00
Wesley W. Terpstra
8e92ac32b7 tilelink2 ToAXI4: we need a Queue on B to guarantee deadlock freedom 2016-10-12 17:02:01 -07:00
Wesley W. Terpstra
38b6c1c820 tilelink2 axi4: RegisterRouter can cut ready dependency 2016-10-12 17:02:01 -07:00
Wesley W. Terpstra
dc26736f32 axi4 tilelink2: include minAlignment and maxAddress in slaves 2016-10-12 17:02:01 -07:00
Wesley W. Terpstra
538437384a tilelink2 Fragmenter: combine AccessAck errors 2016-10-12 17:02:01 -07:00
Wesley W. Terpstra
4caa543ad7 tilelink2: Fragmenter should not cut Acquire parameters 
The correct response to misuse is to fail a requirement check.
Pretending that things are not caches could lead to inconsistency.
 2016-10-11 22:38:03 -07:00
Wesley W. Terpstra
6336f94fa2 tilelink2: only caches can support B requests 2016-10-11 22:38:02 -07:00
Wesley W. Terpstra
4a975ca380 tilelink2: add a rightOR to go with our leftOR 2016-10-11 22:38:02 -07:00
Wesley W. Terpstra
b0e33f4a39 tilelink2: use TLArbiter in HintHandler 2016-10-10 13:15:28 -07:00
Wesley W. Terpstra
683a2e6785 tilelink2: refactor firstlast helper method 2016-10-10 13:15:28 -07:00
Wesley W. Terpstra
a404cd2abf tilelink2: use NodeHandle to restore Crossing.node API 2016-10-10 13:15:28 -07:00
Wesley W. Terpstra
876609eb0e diplomacy: add NodeHandles to support abstraction 2016-10-10 13:15:25 -07:00
Wesley W. Terpstra
97af07eb3e tilelink2: clarify use of Isolation 2016-10-10 13:13:32 -07:00
Wesley W. Terpstra
b5f5ef69c1 regmapper: eliminate race condition in RegisterCrossing bypass 2016-10-10 13:13:32 -07:00
Wesley W. Terpstra
f250426728 tilelink2: blow up if the channels carry data when they should not 2016-10-10 13:13:32 -07:00
Wesley W. Terpstra
6d6aa3eb13 tilelink2: Isolation must also connect reset_n 2016-10-10 13:13:31 -07:00
Wesley W. Terpstra
cb7b16f1a9 util: exchange resets between AsyncQueue source and sink 2016-10-10 13:13:31 -07:00
Wesley W. Terpstra
adf5f1807b tilelink2: ToAXI4 bridge added 2016-10-10 11:21:50 -07:00
Wesley W. Terpstra
e856cbe3a6 axi4: SRAM for testing 2016-10-10 11:21:50 -07:00
Wesley W. Terpstra
abb02aa6f4 axi4: add a RegisterRouter for generic devices 2016-10-10 11:21:50 -07:00
Wesley W. Terpstra
2f7081aeaf tilelink2: make mask generation reusable 2016-10-10 11:21:50 -07:00
Wesley W. Terpstra
b29d34038e axi4: diplomacy capable AXI4 2016-10-10 11:21:50 -07:00
Henry Cook
1e69a2dc1c [tilelink2] allow TL monitors to be globally enabled or disabled (#392) 2016-10-09 12:34:10 -07:00
Wesley W. Terpstra
e5ac0f717f tilelink2: split isolation gates by direction 2016-10-07 12:03:43 -07:00
Albert Ou
ad618fd55d plic: Fix bit extraction 2016-10-06 18:05:03 -07:00
Andrew Waterman
b1c777c7a2 Fix PLIC enable bit access for #ints >= tlDataBits 2016-10-06 16:21:14 -07:00
Jacob Chang
fe641c14a1 tilelink2: Add support for different noise generator in fuzzer (#386) 2016-10-06 13:20:13 -07:00
Andrew Waterman
eddf1679f5 Use <> instead of := for bi-directional connections 2016-10-04 22:29:39 -07:00
Wesley W. Terpstra
6ec2e7c5bd tilelink2: Legacy should preserve the access size (#378) 
* tilelink2: Legacy should preserve the access size
* Legacy: extract missing size information for TL1 Puts
 2016-10-03 17:25:31 -07:00
Wesley W. Terpstra
f05298d9bc tilelink2: move general-purpose code out of tilelink2 package 2016-10-03 16:22:28 -07:00
Wesley W. Terpstra
c85e42a303 tilelink2: Nodes should accept full PortParameters 
We need this for terminal clients/managers that bridge multiple
non-TL2 devices.
 2016-10-03 16:09:49 -07:00
Wesley W. Terpstra
f2ca2178bf graphML: CTO's like colour 2016-10-03 15:05:45 -07:00
Wesley W. Terpstra
fe0875b084 LazyModule: output final verilog Module name 2016-10-03 15:05:45 -07:00
Wesley W. Terpstra
52c1a053ff tilelink2 RegisterRouter: test fully Decoupled behaviour 2016-10-02 02:24:02 -07:00
Wesley W. Terpstra
422e6357a4 tilelink2 RegisterCrossing: Queues go from RV to Irrevocable 
AsyncQueue is still a Queue.
 2016-10-02 02:24:02 -07:00
Wesley W. Terpstra
02f89fb530 RegMapper: clarify interface is DecoupledIO 2016-10-02 02:24:02 -07:00
Wesley W. Terpstra
8a268268ad tilelink2 RegField: clarify restrictions on functions 
RegMapper is fundamentaly DecoupledIO.
Let the user take advantage of this.
Clarify that rules on data handling.
 2016-10-02 02:24:02 -07:00
Wesley W. Terpstra
bff0ffa428 tilelink2 RegisterRouter: fix output data glitches 
If a device changes a register while it's being read but not yet accepted,
this an lead to 'data' changing while 'valid' is high. A violation. The
problem is that RegMapper is fundamentally DecoupledIO. So fix it with a
Queue.
 2016-10-02 02:24:02 -07:00
Megan Wachs
28eba9b5ac clint/plic: Move the default addresses 2016-10-01 15:46:55 -07:00
mwachs5
9a381e88d1 Suggest sane names for common objects (#369) 
* Suggest sane names for common objects frequently instantiated with factory methods

* Suggest names for common primitives using more Scala-esque Options
 2016-09-30 16:19:25 -07:00
Wesley W. Terpstra
0ebab0976a tilelink2 Isolation: add enable signal (#368) 2016-09-30 04:54:40 -07:00
Wesley W. Terpstra
d3547a6193 tilelink2: Isolation gate insertion module 2016-09-30 01:50:33 -07:00
Wesley W. Terpstra
9b0654be52 tilelink2 Crossing: helpful constructor objects 2016-09-30 01:48:47 -07:00
Wesley W. Terpstra
80f7bb49e3 tilelink2: helper objects operate on OutwardNodes 2016-09-30 01:39:35 -07:00
Wesley W. Terpstra
6d8c965f04 tilelink2 Crossing: cut the crossing between clock domains 2016-09-29 17:35:10 -07:00
Wesley W. Terpstra
20f42a8762 tilelink2: reuse the halves of the AsyncQueue 2016-09-29 17:35:08 -07:00
Wesley W. Terpstra
8e4c1e567c tilelink2: add types for a TL clockless interface 2016-09-29 17:33:11 -07:00
Wesley W. Terpstra
02ce8c2ca4 tilelink2 Nodes: rename RootNode => BaseNode 2016-09-29 17:33:11 -07:00
Wesley W. Terpstra
754fcf9831 tilelink2: rename BaseNode to SimpleNode 2016-09-29 17:33:11 -07:00
Wesley W. Terpstra
cfdb8ca797 tilelink2 LazyModule: remove obsolete connect method 2016-09-29 17:33:11 -07:00
Wesley W. Terpstra
f2e438833c tilelink2 Nodes: generalize a node into inner and outer halves 
This lets us create nodes which transform from one bus to another.
 2016-09-29 17:33:11 -07:00
Andrew Waterman
2bdf8c2be7 Merge branch 'master' into move-to-util 2016-09-29 14:42:11 -07:00
Howard Mao
ab3219cf6e don't use Scala to Chisel implicit conversions outside of rocket 2016-09-29 14:35:42 -07:00
Howard Mao
9910c69c67 Move a bunch more things into util package 
A lot of utility code was just being imported willy-nilly from one
package to another. This moves the common code into util to make things
more sensible. The code moved were

 * The AsyncQueue and AsyncDecoupledCrossing from junctions.
 * All of the code in rocket's util.scala
 * The BlackBox asynchronous reset registers from uncore.tilelink2
 * The implicit definitions from uncore.util
 2016-09-29 14:23:42 -07:00
Megan Wachs
45bd63fcc6 jtag: Prevent Debug RAM accesses from wrapping around, and bring the DTM closer to the Debug Spec 2016-09-29 13:49:14 -07:00
Henry Cook
32f3f94882 [tilelink2] Fix zero-width wires in RAMModel. 2016-09-28 18:02:04 -07:00
Henry Cook
69e121260e [tilelink2] Add unit tests for many TL2 components 
These tests mostly use the Fuzzer and RAMModel to check that adapters
correctly handle randomly generated legal traffic.
 2016-09-28 18:02:04 -07:00
Henry Cook
81123f84c9 [tilelink2] Make map generation in RRTests a def so that multiple RRTests can be instantiated as part of the same unit test suite. (#356) 2016-09-27 18:06:21 -07:00
mwachs5
f9e0a7ac24 Merge branch 'master' into async_register_crossing 2016-09-27 15:54:34 -07:00
Wesley W. Terpstra
eaea138d0d tilelink2: don't use chisel3 namespace (#355) 2016-09-27 14:44:26 -07:00
Henry Cook
f5502df6ab Merge branch 'master' into async_register_crossing 2016-09-27 14:08:27 -07:00
Wesley W. Terpstra
357d06ac9c tilelink2 WidthWidget: Gets must have their mask adjusted (#353) 
The mask of a Get should also be converted.

This manifested as a bug when going from 32=>64 bits. A large Get
could end up with mask that was not full.
 2016-09-27 14:06:02 -07:00
Megan Wachs
3ce08f40a5 crossing: Remove reset from the logic in Register Crossing because it is no longer needed when the underlying crossings are asynchronously reset. Update the order of operations 2016-09-27 13:36:28 -07:00
Howard Mao
ea9f0a868f TileLink utility objects should not take implicit parameters 
We have a handful of TileLink-related helper objects
(wrappers, unwrappers, width adapters, and enqueuers). Previously, using
them could be error-prone, because you had to make sure the implicit
parameters they took in had the same TLId as the TileLinkIO bundles
passed in as inputs. This is rather silly, we should just use the
parameters in the bundle.
 2016-09-26 17:28:21 -07:00
Wesley W. Terpstra
d9e209365d Tl2 addr width0 (#346) 
* tilelink2 Edges: add accessor methods for address and addr_{hi,lo}

* tilelink2: use addr_lo instead of relying on truncation

Truncation can mess up if the width should be 0, but IS 1.
 2016-09-26 17:00:03 -07:00
Wesley W. Terpstra
72c205b54f tilelink2 AddressSet: add .misaligned(low, size) helper method (#345) 
This helps devices with misaligned ranges still connect to TL2.
 2016-09-26 16:01:09 -07:00
Wesley W. Terpstra
1773eb4405 tilelink2 LazyModule: output GraphML of the bus 2016-09-26 14:35:46 -07:00
Wesley W. Terpstra
35da9320bc tilelink2 Nodes: expose connectivity in RootNode 2016-09-26 14:35:46 -07:00
mwachs5
77a0f76289 Cleanup jtag dtm (#342) 
* debug: Clean up Debug TransportModule synchronizer

With async reset async queues, I feel its safe/cleaner
to remove the one-off "AsyncMailbox verilog black-box
and use the common primitive.

I also added some comments about correct usage of this
block. Probably the 'TRST' signal should be renamed
to make it less confusing, as it requires some processing
of the real JTAG 'TRST' signal.
 2016-09-26 11:10:27 -07:00
Wesley W. Terpstra
d787bae0d0 tilelink2 Xbar: decouple ready from valid (#338) 
This moves the Xbar from using custom code to using the Arbiter.
The arbiter has better ready-valid decoupling.
 2016-09-23 16:24:29 -07:00
Wesley W. Terpstra
d175bb314d Periphery: make bus width and arithmetic atomics configurable (#337) 2016-09-23 15:25:58 -07:00
Wesley W. Terpstra
47843d8ec1 tilelink2: maxLgSize should be accurate (#332) 2016-09-22 22:06:22 -07:00
Wesley W. Terpstra
c5706afc11 RegField: remove obsolete split method 
This is now natively supported by the regmap(...) invocation.
 2016-09-22 20:52:47 -07:00
Wesley W. Terpstra
fc44151f10 RegField: add name and description fields 
In the future we can generate interesting documentation and headers.
 2016-09-22 20:52:46 -07:00
Wesley W. Terpstra
5e34b313ee RegMapper: regmap(...) now takes BYTE addresses 
If a device has configurable bus-width, we need a stable way of
enumerating registers. The byte offset stays unchanged.

This change also makes it possible to put an arbitrary number of RegFields
starting at some address which are then chopped up into appropriately bus-
sized registers.
 2016-09-22 20:52:46 -07:00
Wesley W. Terpstra
972ca06729 RegField: remove RegField.bytes; it was dangerous 
The implementation unconditionally drove the register.
This made it incompatible with drivers from the device itself.
Besides, writing only parts of a register at a time is ultra-shady.
 2016-09-22 20:52:46 -07:00
Wesley W. Terpstra
a421469754 tilelink2: change adapters to use TLAdapter(params, defaults)(node) 
This API makes it much more readable when you have multiple adapters
combined into a single line. The arguments for each adapter stay
beside the adapter.

For example, this:
  peripheryBus.node := TLWidthWidget(TLBuffer(TLAtomicAutomata()(TLHintHandler(legacy.node))), legacy.tlDataBytes)
becomes this:
  peripheryBus.node := TLWidthWidget(legacy.tlDataBytes)(TLBuffer()(TLAtomicAutomata()(TLHintHandler()(legacy.node))))
 2016-09-22 20:52:46 -07:00
Henry Cook
391be8d740 tilelink2 RegisterRouter: minLatency is never more than 1 2016-09-22 15:51:15 -07:00
Wesley W. Terpstra
a3e88fa13a tilelink2 Atomics: optimize the sign-extension circuit 2016-09-22 15:18:54 -07:00
Wesley W. Terpstra
ed038678ef tilelink2 Fuzzer: work around for firrtl/verilator performance issue 
Big Vec()s cause very slow compilation.
 2016-09-22 15:18:54 -07:00
Wesley W. Terpstra
1e7480b6fc tilelink2 Monitor: work around for firrtl/verilator performance issue 
Big Vec()s cause problems for these tools.
 2016-09-22 15:18:54 -07:00
Wesley W. Terpstra
ec2030df31 tilelink2 Legacy: convert TL1 atomic operand size 2016-09-22 15:18:54 -07:00
Wesley W. Terpstra
e5da3eb8bb tilelink2 Atomics: support arithmetic atomics 2016-09-22 15:18:54 -07:00
Wesley W. Terpstra
5b80fe5b51 tilelink2 Atomics: support Logical AMOs 2016-09-22 15:18:54 -07:00
Wesley W. Terpstra
4066fbe18f tilelink2 RAMModel: exploit latency to remove bypass 2016-09-22 15:18:54 -07:00
Wesley W. Terpstra
e0ade8c5a9 tilelink2 Atomics: exploit minLatency to eliminate bypass 2016-09-22 15:18:54 -07:00
Wesley W. Terpstra
3bb2580223 tilelink2 Monitor: detect minLatency violations 2016-09-22 15:18:54 -07:00
Wesley W. Terpstra
2b24c4b1b4 tilelink2: most adapters can wipe away latency 2016-09-22 15:18:54 -07:00
Wesley W. Terpstra
c115913624 tilelink2 Buffer: increase the minLatency on ports 2016-09-22 15:18:54 -07:00
Wesley W. Terpstra
05beb20dc4 tilelink2: specify the minLatency for SRAM+RR 2016-09-22 15:18:54 -07:00
Wesley W. Terpstra
44277c1db3 tilelink2 Parameters: include a minLatency parameter for optimization 2016-09-22 15:18:54 -07:00
Wesley W. Terpstra
cf39c32b0e tilelink2 Fuzzer: test Atomics 2016-09-22 15:18:53 -07:00
Wesley W. Terpstra
2b9403633d tilelink2 RAMModel: support (by ignoring) atomics 2016-09-22 15:18:53 -07:00
Wesley W. Terpstra
ce204f604a tilelink2 AtomicAutomata: prototype flow control complete 2016-09-22 15:18:53 -07:00
Wesley W. Terpstra
42b10356fa tilelink2: add a general-purpose Arbiter 2016-09-22 15:18:53 -07:00
Wesley W. Terpstra
7636e772c8 tilelink2 Fuzzer: only generate legal atomics 2016-09-22 15:18:53 -07:00
Wesley W. Terpstra
f5d604d8f8 tilelink2 Parameters: poison ports with unsafe atomics 
We need to detect if an AtomicAutomata's output ever gets mixed
with some other source of operations.
 2016-09-22 15:18:53 -07:00
Wesley W. Terpstra
d1151e2f0f tilelink2 Nodes: split connect into eager and lazy halves 2016-09-22 15:18:50 -07:00
Wesley W. Terpstra
684072023f tilelink2 Monitor: make it a LazyModule in the hierarchy 2016-09-22 15:14:20 -07:00
Wesley W. Terpstra
def497861b tilelink2 Bundles: add 1-way snoop bundles 2016-09-22 15:14:20 -07:00
Wesley W. Terpstra
69a1f8cd1f tilelink2 Monitor: detect if sources are mishandled 2016-09-22 15:14:19 -07:00
Albert Ou
d76b762657 tilelink2 Fragmenter: Mask low bits of D channel addr_lo 
This fixes an issue where passing addr_lo through unchanged triggered
unaligned address assertions in the Monitor.
 2016-09-22 12:36:28 -07:00
Howard Mao
cd96a66ba6 replace verilog clock divider with one written in Chisel 2016-09-22 11:32:29 -07:00
Yunsup Lee
7afd630d3e add multiclock support to Coreplex 2016-09-21 16:55:26 -07:00
Henry Cook
335e866176 [unittest] Parallelize UnitTestSuite (#319) 
* [unittest] Parallelize UnitTestSuite so all tests have their own timer, runs until all finish or any timeout. Adds SimpleTimer.

* [util] Timer spacing cleanup

* [unittest] Remove Config reference to UnitTestTimeout
 2016-09-21 13:05:22 -07:00
Andrew Waterman
12d0c00822 Fix mtime RegField handling 
RegField.bytes was unconditionally overwriting mtime, preventing it
from ever ticking.  Avoid RegField.bytes by splitting mtime into
a Seq of words.
 2016-09-20 15:00:52 -07:00
Wesley W. Terpstra
9817a00ed9 tilelink2: Fuzzer should check address validity before injection 2016-09-17 17:07:21 -07:00
Wesley W. Terpstra
b11839f5a1 tilelink2: differentiate fast/safe address lookup cases 2016-09-17 17:04:18 -07:00
Wesley W. Terpstra
b4baae4214 tilelink2: minimize Xbar decode logic 2016-09-17 16:14:25 -07:00
Wesley W. Terpstra
76d8ed6a69 tilelink2: remove 'strided'; !contiguous is clearer 2016-09-17 16:14:25 -07:00
Wesley W. Terpstra
fa0f119f3c tilelink2: consider the implications of negative address mask 2016-09-17 16:14:22 -07:00
Wesley W. Terpstra
e437508548 tilelink2: track interrupt connectivity like in TL2 2016-09-17 14:43:48 -07:00
Wesley W. Terpstra
6c3269a1d8 SRAM: optionally (default: true) executable 2016-09-17 00:19:37 -07:00
Wesley W. Terpstra
e749558190 ROM: optionally (default: true) executable 2016-09-17 00:19:09 -07:00
Wesley W. Terpstra
8876d83640 Prci: preserve Andrew's preferred clint name 2016-09-16 17:28:47 -07:00
Wesley W. Terpstra
a357c1d42e tilelink2: create DTS for devices automagically 2016-09-16 17:28:47 -07:00
Wesley W. Terpstra
2587234838 tilelink2 TLNodes: capture nodePath in {Client,Manager}Parameters 2016-09-16 17:28:47 -07:00
Wesley W. Terpstra
915a929af1 tilelink2: Nodes can now mix context into parameters 2016-09-16 17:28:47 -07:00
Wesley W. Terpstra
dae0918c85 tilelink2 RegisterRouter: support undefZero 2016-09-16 16:09:00 -07:00
Wesley W. Terpstra
f0f553f227 tilelink2 RegisterRouterTest: work around firrtl warning 
Using io.wready leads to verilog that reads from the output...

Lint-[PCTIO-L] Ports coerced to inout
/scratch/terpstra/federation/rocket-chip/vsim/generated-src/UnitTestHarness.UnitTestConfig.v, 24860
"io_wready"
  Port "io_wready" declared as output in module "RRTestCombinational_29" may
  need to be inout. Coercing to inout.
 2016-09-16 16:09:00 -07:00
Wesley W. Terpstra
3fcc1a4460 tilelink2 RegisterRouterTest: don't couple fire into helpers 2016-09-16 16:09:00 -07:00
Wesley W. Terpstra
2210e71f42 tilelink2 AddressDecoder: validate output of optimization 2016-09-16 16:09:00 -07:00
Wesley W. Terpstra
023a54f122 tilelink2 AddressDecoder: improved heuristic 2016-09-16 16:09:00 -07:00
Andrew Waterman
86b70c8c59 Rename PRCI to CoreplexLocalInterrupter 
That's all it's doing (there wasn't much PRC).
 2016-09-16 14:26:34 -07:00
Wesley W. Terpstra
4b1de82c1d RegField: separate UInt=>bytes and bytes=>regs 2016-09-16 14:24:28 -07:00
Wesley W. Terpstra
943c36954d tilelink2 RegField: .bytes should update more than one byte! 2016-09-16 14:24:24 -07:00
Andrew Waterman
6134384da4 Fix deprecation warnings 2016-09-16 14:24:19 -07:00
mwachs5
a031686763 util: Do BlackBox Async Set/Reset Registers more properly (#305) 
* util: Do Set/Reset Async Registers more properly

The way BlackBox "init" registers were coded before was
not really kosher verilog for most synthesis tools.
Also, the enable logic wasn't really pushed down into the flop.

This change is more explicit about set/reset flops,
again this is only a 'temporary' problem that would go away
with parameterizable blackboxes (or general async reset support).

* Tabs, not spaces, in Makefiles

* util: Fix typos in Async BB Reg Comments
 2016-09-16 13:50:09 -07:00
Andrew Waterman
a94b4af92d Simplify AsyncResetRegVec and make AsyncResetReg companion object 2016-09-16 11:25:10 -07:00
Wesley W. Terpstra
dd19e0911e tilelink2: handle bus width=1 2016-09-15 22:15:11 -07:00
Wesley W. Terpstra
e1d7f6d7df PRCI: always use bus width >= XLen 2016-09-15 22:15:07 -07:00
Wesley W. Terpstra
0e80f7fd0f HintHandler: don't violate Irrevocable rules 2016-09-15 21:28:56 -07:00
Wesley W. Terpstra
f05222a072 testconfigs: disable atomics until AtomicAbsorber finished 2016-09-15 21:28:56 -07:00
Wesley W. Terpstra
30fa4ea956 RegisterRouter: compress register mapping for sparse devices 2016-09-15 21:28:56 -07:00
Wesley W. Terpstra
6b1c57aedc tilelink2: compute minimal decisive mask 2016-09-15 21:28:56 -07:00
Wesley W. Terpstra
644f8fe974 rocketchip: switch to TL2 mmio + port PRCI 2016-09-15 21:28:56 -07:00
Wesley W. Terpstra
91e7da4de3 tilelink2: make RegisterRouter constructor args public 2016-09-15 21:28:56 -07:00
Wesley W. Terpstra
3875e11b26 tilelink2: RegField splits up big registers 2016-09-15 21:28:56 -07:00
Wesley W. Terpstra
5c8e52ca32 devices: TL2 version of ROM 2016-09-15 21:28:56 -07:00
Wesley W. Terpstra
3f30e11f16 tilelink2: Legacy, manager_xact_id does not matter for uncached 2016-09-15 21:28:55 -07:00
Wesley W. Terpstra
ddd93871d8 tilelink2: add an executable manager parameter 2016-09-15 21:28:55 -07:00
Wesley W. Terpstra
9442958d67 tilelink2: allow := on nodes outside the tilelink2 package 2016-09-15 21:28:55 -07:00
Jack Koenig
f2fe437fa4 Use CDEMatchError for improved performance (#304) 2016-09-15 19:47:18 -07:00
Henry Cook
0a65238920 Merge branch 'master' into tl2-irrevocable 2016-09-15 10:30:50 -07:00
Howard Mao
49863944c4 merge ClientTileLinkEnqueuer and ClientUncachedTileLinkEnqueuer objects into TileLinkEnqueuer 2016-09-14 21:36:27 -07:00
Howard Mao
646527c88e use named constants to set AXI resp, cache, and prot fields 2016-09-14 21:16:54 -07:00
Henry Cook
cde104b3fa [junctions] Removes the obsoleted SMI. 
Closes #280.
 2016-09-14 20:06:22 -07:00
Wesley W. Terpstra
1c7d7f9d32 tilelink2 RegisterRouterTest: stall on both edges 2016-09-14 18:22:12 -07:00
Henry Cook
1b53e477fa Merge branch 'master' of github.com:ucb-bar/rocket-chip into tl2-irrevocable 2016-09-14 17:50:17 -07:00
Henry Cook
e02d149cbe [tilelink2] Convert TileLink2 to use IrrevocableIO. Add checks to the Monitor to enforce Irrevocable semantics on TLEdges. Update the RegisterRouterTests to pass the new Monitor assertions. 2016-09-14 17:43:07 -07:00
Megan Wachs
1308680f75 Add some async/clock utilities 2016-09-14 16:30:59 -07:00
Henry Cook
aa3fa90fe3 [tilelink2] Monitor: miscopied name in assert message 2016-09-14 14:56:50 -07:00
Henry Cook
d76e19a6ab [tilelink2] Monitor: simplify monitor interface. EdgeIn and EdgeOut are required to be the same, so why pass around both? 2016-09-14 14:23:23 -07:00
Andrew Waterman
5566bf1b13 Don't route PLIC interrupts through PRCI 
The PLIC is local to the Coreplex, and PRCI should not be.
 2016-09-14 11:01:05 -07:00
mwachs5
47acbf928b Give AsyncCrossing slave interfaces registers visibility into when they were written (#288) 2016-09-14 00:17:26 -07:00
Howard Mao
bdb7b1de36 move tilelink-agnostic counters from uncore to util package 2016-09-13 20:47:05 -07:00
Howard Mao
1882241493 move junctions utils into top-level utils package 2016-09-13 20:47:04 -07:00
Henry Cook
7dd4492abb First cut at refactoring unittests into a top-level utility. Individual tests co-located with their DUT. No functional changes. 2016-09-13 20:30:14 -07:00
Wesley W. Terpstra
d23ab7370d tilelink2: Unit Test for the RegisterCrossing 2016-09-13 18:33:56 -07:00
Wesley W. Terpstra
acedd3688a tilelink2: unit test for the clock crossing 2016-09-13 18:33:56 -07:00
Wesley W. Terpstra
c8e6d47884 tilelink2: add a clock crossing adapter 2016-09-13 18:33:56 -07:00
Wesley W. Terpstra
44501cdbf8 crossings: change defaults to sync=3 for safer settling time 
Make the matching AsyncQueue depth=8 to support full throughput
 2016-09-13 18:33:56 -07:00
Wesley W. Terpstra
fe6a67dd0e tilelink2: add a RegisterCrossing primitive 2016-09-13 18:33:53 -07:00
Wesley W. Terpstra
ecdfb528c5 crossing: refactor AsyncDecoupled to provide AsyncDecoupledCrossing with no clock domain 2016-09-13 15:51:18 -07:00
Wesley W. Terpstra
33a05786db tilelink2 RAMModel: fix put, get, putAck, getAck case (#282) 
This case should result in undefined data for the Get.
It was previously requiring the Get to return the new Put data,
which is only guaranteed by a FIFO device.
 2016-09-13 15:44:36 -07:00
Henry Cook
632b5896b9 Delete TestGraphs.scala 
Re-do later using Fuzzer
 2016-09-13 13:29:48 -07:00
Henry Cook
e318c29d48 [tilelink2] Fuzzer: Allow noise-making to be parameterized. Better comments. 2016-09-13 12:25:57 -07:00
Wesley W. Terpstra
606f19a17f tilelink2: RegisterRouter Unit Test 2016-09-12 22:13:39 -07:00
Wesley W. Terpstra
7005422651 tilelink2 HintHandler: don't HintAck in the middle of a multibeat op 2016-09-12 19:06:35 -07:00
Wesley W. Terpstra
273d3a73f2 tilelink2: Unit Test passes! 2016-09-12 18:39:50 -07:00
Wesley W. Terpstra
9874bc553a tilelink2: Fragmenter supports Hints 2016-09-12 17:31:59 -07:00
Wesley W. Terpstra
42955a0490 tilelink2: HintHandler optimize to nothing if unneeded 2016-09-12 17:31:16 -07:00
Wesley W. Terpstra
94761f714d tilelink2 HintHandler: fill in correct sink in responses 2016-09-12 17:26:40 -07:00
Wesley W. Terpstra
ca5f98f138 tilelink2: Hints are not special 
Hints have a TransferSize limit just like all other message types.
 2016-09-12 17:15:28 -07:00
Henry Cook
ad8e563c89 [tilelink2] Fuzzer: Rewrite of fuzzer 
Multiple bug-fixes and actual source id generation.
 2016-09-12 17:00:58 -07:00
Henry Cook
0b0c891179 [tilelink2] Monitor: Allow zero-mask PutPartials 
this will require a larger address refactoring TBD
 2016-09-12 17:00:50 -07:00
Henry Cook
c57b52ec86 tilelink2 Fragmenter: bugfix using D.hasData 2016-09-12 16:58:21 -07:00
Henry Cook
82681179cb [tilelink2] Edges: add size to addr_lo. 
addr_lo cannot correctly be deciphered from the mask alone.
OxC still has addr_lo === 0 if size is >1.
 2016-09-12 16:58:09 -07:00
Henry Cook
a21b04a7c1 playground for making different DAGs to use as DUTs 2016-09-12 10:32:45 -07:00
Henry Cook
0671d5d637 Initial version of fuzzer and simple ram fuzz test 2016-09-12 10:32:45 -07:00
Wesley W. Terpstra
7760459b76 tilelink2 RegisterRouter: add RegField test patterns 2016-09-12 10:32:25 -07:00
Wesley W. Terpstra
85ae77c108 tilelink2 RAMModule: carefully stage the pipeline to make BRAMs possible 2016-09-12 10:32:25 -07:00
Wesley W. Terpstra
9560df537c tilelink2 RegisterRouter: allow sub-4k devices in order to make useful unit tests 2016-09-12 10:32:24 -07:00
Wesley W. Terpstra
26f9e2dfbd tilelink2 Parameters: fix width=1 address truncation bug 2016-09-12 10:32:24 -07:00
Wesley W. Terpstra
98a4facac7 tilelink2 RAMModel: clear Mems on power-up 2016-09-12 10:32:24 -07:00
Wesley W. Terpstra
17f7ab18de tilelink2 RAMModel: model the state a RAM would have for Put+Gets 2016-09-12 10:32:24 -07:00
Wesley W. Terpstra
488b93d146 tilelink2 Parameters: if you support PutPartial, you must support PutFull 2016-09-12 10:32:24 -07:00
Wesley W. Terpstra
d6261e8ce8 tilelink2 Edge: add a numBeats1 method for predecremented code 2016-09-12 10:32:24 -07:00
Wesley W. Terpstra
5604049927 tilelink2 Buffer: support an unlimited number of channels 2016-09-12 10:32:24 -07:00
Megan Wachs
77e4aa63f8 Get rid of the unecessary Parameters for Async Reset Reg 2016-09-09 16:24:35 -07:00
Megan Wachs
5f5989848c Merge remote-tracking branch 'origin/master' into black_box_regs 2016-09-09 13:12:52 -07:00
Wesley W. Terpstra
c28ca37944 tilelink2: get rid of fragile implicit lazyModule pattern, and support := 
We can more reliably find the current LazyModule from the LazyModule.stack
 2016-09-08 23:06:59 -07:00
Wesley W. Terpstra
b587a409a3 tilelink2 Node: make it possible for {Identity,Output,Input}Node to pass a Vec 
In order to implement a pass-through RAM Monitor model, we will want to support
a variable number of inputs and outputs with BOTH different manager and client
parameters on each bundle.
 2016-09-08 21:34:20 -07:00
Wesley W. Terpstra
48ca478578 Merge branch 'master' into intbar 2016-09-08 21:09:59 -07:00
Wesley W. Terpstra
808a7f60f4 tilelink2 Legacy: it's only an error if it's valid (#264) 2016-09-08 21:09:40 -07:00
Megan Wachs
fda4c2bd76 Add a way to create Async Reset Registers and a way to easily access them with TL2 2016-09-08 20:02:07 -07:00
Megan Wachs
c1eb1f12a2 tilelink2: Rename GPIO to Example to avoid conflicts with real GPIO devices 2016-09-08 20:02:07 -07:00
Wesley W. Terpstra
cbf0670156 tilelink2 Legacy: it's only an error if it's valid 2016-09-08 19:32:00 -07:00
Wesley W. Terpstra
1b07d53f70 tilelink2 IntNodes: record interrupt ranges in parameters 2016-09-08 18:51:43 -07:00
Wesley W. Terpstra
66f58cf2d0 tilelink2 RegisterRouter: support new TL2 interrupts 2016-09-08 15:25:50 -07:00
Wesley W. Terpstra
23e896ed5d tilelink2 IntNodes: support interrupt graphs 2016-09-08 15:25:48 -07:00
Wesley W. Terpstra
d7df7d3109 tilelink2: connect Nodes to LazyModules for better error messages 2016-09-08 15:24:04 -07:00
Wesley W. Terpstra
53987cd9d4 tilelink2 Nodes: support non-Bundle data for io type 2016-09-08 15:19:12 -07:00
Wesley W. Terpstra
60a503dc2f tilelink2 RegField: add a w1ToClear RegField 2016-09-08 14:02:49 -07:00
Wesley W. Terpstra
99b7e734cd tilelink2 Bundles: fix wrong sink width! 2016-09-08 13:47:40 -07:00
Wesley W. Terpstra
9bfd8c1cf5 TL2 WidthWidget (#258) 
* tilelink2 Narrower: support widenening and narrowing on all channels

Be extra careful with the mask transformations

We need to make sure that narrowing or widening do not cause a loss
of information about the operation. The addr_hi+(mask|addr_lo) conversions
are now 1-1, except on D, which should not matter.

* tilelink2 SRAM: work around firrtl SeqMem bug

* tilelink2 WidthWidget: renamed from Narrower (it now converts both ways)

* tilelink2 mask: fix an issue with width=1 data buses
 2016-09-08 10:38:38 -07:00
Andrew Waterman
23d0b31615 Merge branch 'master' into tilelink2.2 2016-09-07 11:47:50 -07:00
Andrew Waterman
02a2439222 Support a degenerate PLIC with no interrupts 
Resolves #249
 2016-09-07 11:21:13 -07:00
Wesley W. Terpstra
d2421654c4 tilelink2: refactor address into addr_hi on ABC and addr_lo on CD 
We need addr_lo in order to properly convert widths.
As part of the refactoring, move all methods out of the Bundles
 2016-09-06 23:46:44 -07:00
Wesley W. Terpstra
aae4230627 tilelink2: fix bugs found by Megan in Legacy converter 2016-09-06 13:12:33 -07:00
Wesley W. Terpstra
54ab14cd9d tilelink2: statically optimize numBeats for simple managers 2016-09-05 22:11:03 -07:00
Wesley W. Terpstra
314d6ebd6f tilelink2: stricter TransferSizes requirements 2016-09-05 22:10:28 -07:00
Wesley W. Terpstra
56170c605c tilelink2: be more forgiving in what Legacy TL requires 2016-09-05 21:12:51 -07:00
Wesley W. Terpstra
3167539331 tilelink2: Narrower must be little-endian 2016-09-05 20:58:41 -07:00
Wesley W. Terpstra
ded246fb95 tilelink2: relax max transfer size; the real requirement is not exceeding alignment 2016-09-05 20:58:41 -07:00
Wesley W. Terpstra
cf0291061d tilelink2: fix a bug in UIntToOH1 triggered if the size was too big 2016-09-05 20:58:41 -07:00
Wesley W. Terpstra
9f45212c95 tilelink2: Fragmenter needs to update subaddress 2016-09-05 20:58:41 -07:00
Wesley W. Terpstra
757d46279e tilelink2: expand data correctly in D channel narrower 2016-09-05 20:58:41 -07:00
Wesley W. Terpstra
0faa8c4051 tilelink2: fix Xbar bug where Mux1H broke FSM if only one manager 2016-09-05 20:58:41 -07:00
Wesley W. Terpstra
a0c25880c7 tilelink2: Monitor should check mask of reconstructed request 2016-09-05 20:58:41 -07:00
Wesley W. Terpstra
df32cc3887 tilelink2: be careful; apply Andrew's masking trick everywhere 2016-09-05 20:58:41 -07:00
Wesley W. Terpstra
fb262558ee tilelink2: helper objects should pass source line from where they were invoked 2016-09-05 20:58:41 -07:00
Wesley W. Terpstra
1a081b4dd5 tilelink2: Monitor should report which TL connection was the problem 2016-09-05 20:58:41 -07:00
Wesley W. Terpstra
cb54df0a8a tilelink2: tie off unused channels 2016-09-05 20:58:41 -07:00
Wesley W. Terpstra
68e64a9859 tilelink2: clarify ready-valid use of RegisterRouter 2016-09-05 20:58:40 -07:00
Wesley W. Terpstra
e3b3543841 tilelink2: ensure RegFields don't exceed their bounds 2016-09-05 20:58:40 -07:00
Wesley W. Terpstra
8343070639 tilelink2: detect 1-bit overflow in register definitions 2016-09-05 20:58:40 -07:00
Wesley W. Terpstra
a1fc01fd6d tilelink2: prevent mapping the same register twice 2016-09-05 20:58:40 -07:00
Wesley W. Terpstra
81162a2dc9 tilelink2: support attaching a DecoupledIO directly to a register 2016-09-05 20:58:40 -07:00
Wesley W. Terpstra
6a378e79e3 tilelink2: allow 0-stage backpressure in combinational regmap 2016-09-05 20:58:40 -07:00
Wesley W. Terpstra
4746cf00ce tilelink2: move files to new uncore directory 2016-09-05 20:58:40 -07:00
Howard Mao
a7f79aa409 get rid of TileLinkMemorySelector 2016-09-04 10:55:19 -07:00
Howard Mao
f0ab6d0214 tie off finish signals in tilelink wrapper and unwrapper 2016-09-04 10:55:19 -07:00
Jim Lawson
dc9ae19936 Work-around for current Scala compiler "structural type loses implicits". 
Running rocket-chip through the chisel3 gsdt branch which supports stricter connection checks and uses implicit definitions to deal with "old" direction overrides, exposed a possible bug in the Scala compiler.

    [error] .../src/main/scala/uncore/devices/Prci.scala:27: value asOutput is not a member of uncore.devices.PRCIInterrupts{val mtip: chisel3.core.Bool; val msip: chisel3.core.Bool}
    [error] possible cause: maybe a semicolon is missing before `value asOutput'?
    [error]   }.asOutput
    [error]     ^
    [error] one error found
    [error] (uncore/compile:compileIncremental) Compilation failed

This change isn't strictly required for current chisel3 code, but is being submitted in anticipation of an eventual merge of the gsdt branch prior to a compiler fix.
 2016-09-02 15:38:18 -07:00
Andrew Waterman
e23e4d6de5 Add ClientUncachedTileLinkEnqueuer utility 2016-09-02 15:27:54 -07:00
Andrew Waterman
7aeb42fa55 Allow narrow TL interface on PRCI; make mtime writable 2016-09-02 15:27:54 -07:00
Megan Wachs
3dd51ff734 This commit adds Logic & test support for JTAG implementation of Debug Transport Module. 
- The DebugTransportModuleJtag is written in Verilog. It probably could be written in
  Chisel except for some negative edge clocking requirement.
- For real implementations, the AsyncDebugBusTo/From is insufficient. This commit
  includes cases where they are used, but because they are not reset asynchronously,
  a Verilog 'AsyncMailbox' is used when p(AsyncDebug) is false.
- This commit differs significantly from the earlier attempt. Now, the
  DTM and synchronizer is instantiated within Top, as it is a real piece of
  hardware (vs. test infrastructure).
-TestHarness takes a parameter vs. creating an entirely new TestHarness class.
It does not make sense to instantiate TestHarness when p(IncludeJtagDTM) is false,
and it would not make sense to insantiate some other TestHarness if p(IncludeJtagDTM)
is true.

To build Verilog which includes the JtagDTM within Top:

make CONFIG=WithJtagDTM_...

To test using gdb->OpenOCD->jtag_vpi->Verilog:

First, install openocd (included in this commit)

./bootstrap
./configure --prefix=$OPENOCD --enable-jtag-vpi
make
make install

Then to run a simulation:

On a 32-bit core:

$(ROCKETCHIP)/riscv-tools/riscv-tests/debug/gdbserver.py \
  --run ./simv-TestHarness-WithJtagDTM_... \
  --cmd="$OPENOCD/bin/openocd --s $OPENOCD/share/openocd/scripts/" \
  --freedom-e300-sim \
  SimpleRegisterTest.test_s0

On a 64-bit core:

$(ROCKETCHIP)/riscv-tools/riscv-tests/debug/gdbserver.py \
  --run ./simv-TestHarness-WithJtagDTM_... \
  --cmd="$OPENOCD/bin/openocd --s $OPENOCD/share/openocd/scripts/" \
  --freedom-u500-sim \
  SimpleRegisterTest.test_s0
 2016-08-19 16:08:31 -07:00
Megan Wachs
dd4a50c452 Add JTAG DTM and test support in simulation 
Initial cut

checkpoint which compiles and runs but there is some off-by-1 in the protocol

Debugging the clock crossing logic

checkpoint which works

Clean up the AsyncMailbox black box
 2016-08-19 16:08:17 -07:00
Howard Mao
7b20609d4d reorganize moving non-submodule packages into src/main/scala 2016-08-19 13:45:23 -07:00