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3939 Commits

Author SHA1 Message Date
whitequark b562b0fbc4 artiq_devtool: detect a race condition during connect. 2016-11-21 03:10:41 +00:00
whitequark 7af41bd29c llvm_ir_generator: handle no-op coercions. 2016-11-21 02:25:34 +00:00
Sebastien Bourdeauducq eb18466820 conda: use development version of migen/misoc 2016-11-20 22:56:48 +08:00
whitequark cdb29f9caa Revert accidentally committed code. 2016-11-20 14:32:59 +00:00
Sebastien Bourdeauducq ad1049d59a Revert "gateware: increase RTIO FIFO sizes for NIST_CLOCK. Closes #623" 
This reverts commit 4a62e09bd4.
 2016-11-20 21:35:07 +08:00
whitequark f5cca6b09e analyses.invariant_detection: implement (#622). 2016-11-20 12:48:26 +00:00
whitequark 30598720f4 Fix whitespace. 2016-11-20 09:50:00 +00:00
whitequark abf2b32b20 coredevice.dds: work around the round(numpy.float64()) snafu. 2016-11-20 09:49:58 +00:00
whitequark d7f4397924 coredevice.dds: update from obsolete int(width=) syntax (fixes #621). 2016-11-20 09:49:39 +00:00
David Leibrandt 4a62e09bd4 gateware: increase RTIO FIFO sizes for NIST_CLOCK. Closes #623 2016-11-20 15:22:32 +08:00
Sebastien Bourdeauducq 02adae7397 drtio: fix link shutdown 2016-11-19 11:01:33 +08:00
Sebastien Bourdeauducq abd1b2a94e drtio: wait longer for remote (bruteforce clock aligner can be slow) 2016-11-19 11:01:09 +08:00
Sebastien Bourdeauducq 381e58434f drtio: handle link restarts at transceiver level 2016-11-19 10:46:56 +08:00
Sebastien Bourdeauducq ba94ed8f4b drtio: check for absence of disparity errors before claiming RX ready 2016-11-19 00:05:59 +08:00
whitequark 2015fe9de0 doc: update installing_from_source for LLVM 3.9 transitionl 2016-11-18 10:35:36 +00:00
Sebastien Bourdeauducq 4d07974a34 drtio: reset link from CPU 2016-11-18 17:45:33 +08:00
Sebastien Bourdeauducq f040e27041 drtio: add timeout on FIFO get space request 2016-11-18 17:44:48 +08:00
whitequark c7844d5223 runtime: use proper format for git commit. 
Fixes #620.
 2016-11-17 15:20:21 +00:00
Sebastien Bourdeauducq bb047aabe9 drtio: simpler link layer 2016-11-17 22:32:39 +08:00
Sebastien Bourdeauducq 09363e1da8 drtio: aux controller unittest 2016-11-16 19:45:28 +08:00
Sebastien Bourdeauducq 140bb0ecee drtio: aux controller fixes 2016-11-16 19:44:03 +08:00
Sebastien Bourdeauducq 7fa9a4efc3 drtio: aux controller unittest WIP 2016-11-15 12:02:53 +08:00
Sebastien Bourdeauducq 6c9965b444 drtio: aux controller fixes 2016-11-15 12:02:41 +08:00
Sebastien Bourdeauducq e1394db861 drtio: aux controller minor fixes 2016-11-14 17:26:30 +08:00
Sebastien Bourdeauducq 84bd962ed5 drtio: integrate aux controller 2016-11-14 17:20:47 +08:00
Sebastien Bourdeauducq a4d92716da drtio: fix aux receiver, add aux transmitter 2016-11-14 17:18:54 +08:00
Sebastien Bourdeauducq f2f131e0fb drtio: add aux receiver (untested) 2016-11-14 00:04:53 +08:00
whitequark 18c394976e runtime: disable the Nagle algorithm entirely. 
See also commit feed91d; that commit fixed the test_rpc_timing test,
but caused frequent hangs elsewhere, which were also caused by buggy
Nagle implementation. Just disable this entirely, as with our
explicit buffering it provides no benefit anyway.
 2016-11-13 00:33:24 +00:00
whitequark feed91d8b2 runtime: buffer RPC send packets. 
This brings mean RPC time from ~45ms to ~2ms.

The cause of the slowness without buffering is, primarily, that lwip
is severely pessimized by small writes, whether with Nagle on or off.
(In fact, disabling Nagle makes it function *better* on many small
writes, which begs the question of what's the point of having Nagle
there in the first place.) In practical terms, the slowness appears
only when writing a 4-byte buffer (the synchronization segment);
writing buffers of other sizes does not trigger the problem.

This all is extremely confusing and the fix is partly palliative,
but since it seems to work reliably and we're migrating off lwip
I think it is unwise to spend any more time debugging this.
 2016-11-12 23:06:33 +00:00
whitequark 3ce1826891 runtime: don't print debug messages to the UART. 
It takes ~4ms to print an empty log line because of how slow
the UART is. This makes the log timestamps useless for debugging
performance problems.

After this commit, it takes ~75us to print an empty log line instead,
which pessimizes test_rpc_timing by less than 2ms with tracing
enabled.
 2016-11-12 20:26:32 +00:00
whitequark acc5e53b32 runtime: print microsecond timestamps in debug messages. 2016-11-12 20:26:32 +00:00
whitequark dca3fb5c96 artiq_devtool: abort if build failed. 2016-11-12 20:26:32 +00:00
whitequark 7c2b1155ef conda: bump llvmlite-artiq dep. 2016-11-12 13:58:00 +00:00
whitequark 5eb940deb7 conda: bump llvmlite-artiq dep. 2016-11-12 04:09:34 +00:00
whitequark d3ee858d16 llvm_ir_generator: use !{→unconditionally.}invariant.load metadata. 
This helps LICM, among other things.
 2016-11-12 04:08:58 +00:00
whitequark 8b6418c604 artiq_devtool: more robust port forwarding. 2016-11-11 15:22:07 +00:00
Sebastien Bourdeauducq fbc2420443 setup: remove paramiko dependency (optional and developer-only) 2016-11-11 11:05:37 +08:00
whitequark 3b6cbb1f06 artiq_devtool: implement. 2016-11-10 20:25:15 +00:00
whitequark 0e76cbc414 artiq_compile: actually disable attribute writeback. 
I wrote both halves of this condition but forgot to hook
them together.

Fixes #586.
 2016-11-10 01:04:36 +00:00
whitequark 67e743d74a conda: use pythonparser 1.0. 2016-11-09 15:19:27 +00:00
whitequark 71f1d38860 conda: tighten pythonparser dependency (fixes #600). 2016-11-09 15:10:53 +00:00
whitequark eee8d05398 doc: clarify kernel_invariant doc (fixes #609). 2016-11-09 14:59:57 +00:00
David Nadlinger bfbdba9205 compiler: Emit all-kernel_invariant objects as LLVM constants 
This enables constant propagation optimisations, as verified by
the included test case. This is only a first stop-gap measure, though;
we should support optimisation based on kernel invariants on a more
fine-grained level.
 2016-11-09 14:50:48 +00:00
Sebastien Bourdeauducq 8a48d6d66e drtio: fix typo 2016-11-09 22:15:42 +08:00
Sebastien Bourdeauducq 863934c4fa drtio: more reliable link layer init 2016-11-09 22:03:47 +08:00
Sebastien Bourdeauducq c92ccd3b5b drtio: add pulse rate example 2016-11-09 15:29:15 +08:00
Sebastien Bourdeauducq 60e748eabe drtio: better LED demo 2016-11-09 14:53:45 +08:00
Sebastien Bourdeauducq d547c5d922 drtio: fix example ref_period 2016-11-09 14:44:01 +08:00
whitequark 124b257e05 conda: update for LLVM 3.9. 2016-11-08 23:24:03 +00:00
Sebastien Bourdeauducq 99ad9b5917 add has_dds, use config flags 2016-11-08 23:33:03 +08:00