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86 Commits (cbdef0225c274979478fed3057b31b5beed5a2be)

Author SHA1 Message Date
David Nadlinger cbdef0225c ttl: Add target RTIO time argument to timestamp/count functions 
Software-based tracking of timestamps is problematic (e.g. when
using DMA, see GitHub #1113).
 2018-11-03 20:33:19 +08:00
David Nadlinger 11e8c9d5f7 coredevice: Add Core.wait_until_mu() 
(This supersedes TTLOut.sync(), see see GitHub #1113.)
 2018-11-03 20:33:19 +08:00
Sebastien Bourdeauducq d707d2f4fe test: relax TTL timing requirements to support DIO EEM 2018-08-17 13:35:16 +08:00
whitequark 38d60100ff firmware: optimize dma_record_output. 
This removes a number of bounds checks and adds a fast path for
outputting exactly one word to DMA, which is the most common
operation.
 2018-08-12 19:17:45 +00:00
Sebastien Bourdeauducq 052e400f12 test: skip test_dma_playback_time on Kasli (#946) 2018-08-09 18:08:21 +08:00
Sebastien Bourdeauducq bbc98410e4 test: dds → ad9914dds 
Prevent confusion with Urukul.
 2018-08-09 16:55:09 +08:00
Sebastien Bourdeauducq d2c8e62cb7 test_rtio: relax ClockGeneratorLoopback performance requirements 2018-07-09 18:07:25 +08:00
Sebastien Bourdeauducq 3027951dd8 integrate new AD9914 driver 
moninj, analyzer, docs, examples, tests.
 2018-05-13 23:29:35 +08:00
Sebastien Bourdeauducq 77f90cf93b test: relax RTIO counter test and print result 2018-01-24 10:07:22 +08:00
Sebastien Bourdeauducq ed0fbd5662 test: add test for RTIO counter (#883) 2018-01-24 00:28:39 +08:00
Sebastien Bourdeauducq f3f83174b1 test: check that DMA can underflow 2017-10-31 00:10:13 +08:00
Sebastien Bourdeauducq 415fa00846 test: relax rtio test_loopback 2017-10-30 23:07:54 +08:00
Sebastien Bourdeauducq 20a5f095f8 test: use longer DMA sequence when playing it back repeatedly 
The CPU has to keep up.
 2017-10-30 23:06:38 +08:00
Sebastien Bourdeauducq 9bf189ca10 test: relax timing requirements when not using DMA handle 
core_dma.playback() without handle incurs a round-trip with the comms
CPU and should not be used in critical real-time sections.

Closes #834.
 2017-10-30 22:57:12 +08:00
Sebastien Bourdeauducq 5437f0e3e3 rtio: make sequence errors consistently asychronous 2017-09-29 14:40:06 +08:00
Sebastien Bourdeauducq 4e31e9a9ac test: relax test_rtio.test_loopback 
With SED there are 8 additional FIFO output stages.
 2017-09-26 17:13:02 +08:00
Sebastien Bourdeauducq 53860868f4 test/rtio: wait for counter >= now before checking for async errors 2017-09-16 17:52:39 +08:00
Sebastien Bourdeauducq 770ce2658f test: adapt SequenceError test to SED 2017-09-16 16:28:57 +08:00
Sebastien Bourdeauducq 6262969d46 test: relax test_dma_record_time 2017-06-21 18:33:58 +08:00
Sebastien Bourdeauducq 5fc953119e fix usage of CommMgmt 2017-05-22 17:32:11 +08:00
Sebastien Bourdeauducq 5ccca74a3f fold comm device into core device 2017-05-22 15:45:45 +08:00
whitequark ed2b10c5aa compiler: in codegen for delay(), round fp instead of truncating. 
Consider delay(8*us). It results in the following computation...
  >>> 8*1e-06/1e-09
  7999.999999999999
with the result promptly getting truncated to 7999.

Fixes #706.
 2017-04-21 17:36:44 +00:00
whitequark fd994ceef3 DMA: various fixes to bring tests in line. 2017-04-20 20:05:03 +00:00
Sebastien Bourdeauducq e8f7f8ef9c DMA: speed up playback 
Time reduced from 1.53µs to 1.37µs.
 2017-04-19 10:59:12 +08:00
whitequark 41c4de4556 DMA: add API for a much faster replay using handles. 2017-04-18 08:20:12 +00:00
whitequark 9dfe9c1248 DMA: improve recording performance. 
This commit moves DMA serialization code to the kernel CPU
(to cope with the existence of rtio_output_wide) and batches
the resulting sequences. This results in less data being transferred
between kernel and comms CPUs (24 octets with one pointer before,
18 octets with no pointers now, for the common case of rtio_output),
but most importantly reduces cache flushes, which now happen
once per 64k octets.

On average, it now takes about 15us to record a single RTIO event
in a DMA trace.

Fixes #712.
 2017-04-15 07:29:52 +00:00
Sebastien Bourdeauducq f314f8b8f5 relax test_rpc_timing 2017-04-08 22:45:08 +08:00
whitequark 14ae1cc100 runtime: advance now on DMA replay. 
Fixes #700.
 2017-04-05 18:34:36 +00:00
whitequark 56918fb375 test: re-enable DMA tests as the feature is now stable. 2017-04-05 16:43:22 +00:00
whitequark 8b98e1ea6d test: relax test_rpc_timing: rpc_time_mean <2ms → <3ms. 2017-03-31 20:41:47 +00:00
whitequark 245e186347 Commit missing parts of 948ed6fb. 2017-03-29 18:34:08 +00:00
Sebastien Bourdeauducq 2e2d0be201 skip crashing DMA tests on buildbot 2017-03-29 09:36:51 +08:00
whitequark 7eb368fd5d test: add DMA test that checks the analyzer trace. 2017-03-28 14:22:20 +00:00
Sebastien Bourdeauducq 6caab4d10b test: verify that RTIO collisions appear in log 2017-03-27 18:08:03 +08:00
Sebastien Bourdeauducq 70343b244d test: add more RTIO slack in test_clock_generator_loopback 2017-03-27 17:26:23 +08:00
Sebastien Bourdeauducq 58ee09dbdc test: re-enable test_clock_generator_loopback 
It passes now for some reason.
 2017-03-27 17:26:02 +08:00
Sebastien Bourdeauducq b74d6fb9ba make collision and busy asynchronous errors, and simplify CPU/gateware handshake for output errors and reads 2017-03-27 16:32:23 +08:00
Sebastien Bourdeauducq 1ee3f96482 test: self.break_realtime → self.core.break_realtime 2017-03-27 16:31:11 +08:00
whitequark ac9e8b8568 test: avoid underflow in DMA replay test. 2017-03-17 12:09:02 +00:00
whitequark dbea679e96 Revert "test: relax test_rpc_timing on Windows." 
This reverts commit e9cf451c0b.
 2017-03-17 11:34:45 +00:00
whitequark e9cf451c0b test: relax test_rpc_timing on Windows. 2017-03-17 11:20:16 +00:00
whitequark 7dc7dcda2c test: relax test_pulse_rate_dds to only catch catastrophic slowdown. 2017-03-17 11:17:47 +00:00
Sebastien Bourdeauducq f121ca20fe test: relax test_pulse_rate_dds 2017-03-03 18:10:27 +08:00
whitequark a4ece19614 Implement DMA playback. 2017-02-28 21:28:40 +00:00
whitequark 9c93c760fc firmware: do not use PIC in Rust code. 
This fixes test_pulse_rate and test_pulse_rate_dds by making
rtio_output slightly faster.
 2017-02-02 12:22:55 +00:00
whitequark 609fd3d902 test: skip test_clock_generator_loopback as well. 
Both tests pass locally, which means there's some conda screwup
that prevents them from working on CI.
 2017-01-27 11:47:26 +00:00
whitequark c529cefc89 conda: bump llvmlite-artiq dependency. 2017-01-27 11:14:53 +00:00
whitequark 477664f931 test: temporarily skip pulse_rate_dds. 2017-01-26 20:53:30 +00:00
whitequark 0b67396630 test: convert test_pulse_rate_dds to use mu. 
Before this commit, this test was actually measuring soft-FP
performance.
 2017-01-25 11:26:30 +00:00
whitequark 3485c83429 Fix tests. 2016-11-21 06:40:47 +00:00