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Commit Graph

3823 Commits

Author SHA1 Message Date
51f23feeac dsp: implement sawg features 2016-11-17 03:20:37 +01:00
98193d6fa1 dsp/Delay: reset_less 2016-11-17 02:36:29 +01:00
424a1f8f4e dsp: move test tools 2016-11-16 13:39:19 +01:00
b9ce2bb1f0 Merge branch 'phaser' into phaser2
* phaser: (127 commits)
  phaser: use misoc cordic
  phaser: fix DDS dummy cfg
  runtime: disable the Nagle algorithm entirely.
  runtime: buffer RPC send packets.
  runtime: don't print debug messages to the UART.
  runtime: print microsecond timestamps in debug messages.
  artiq_devtool: abort if build failed.
  conda: bump llvmlite-artiq dep.
  conda: bump llvmlite-artiq dep.
  llvm_ir_generator: use !{→unconditionally.}invariant.load metadata.
  artiq_devtool: more robust port forwarding.
  setup: remove paramiko dependency (optional and developer-only)
  artiq_devtool: implement.
  artiq_compile: actually disable attribute writeback.
  conda: use pythonparser 1.0.
  conda: tighten pythonparser dependency (fixes #600).
  doc: clarify kernel_invariant doc (fixes #609).
  compiler: Emit all-kernel_invariant objects as LLVM constants
  conda: update for LLVM 3.9.
  add has_dds, use config flags
  ...
2016-11-13 17:30:37 +01:00
70a70320bd phaser: use misoc cordic 2016-11-13 17:29:38 +01:00
2e482505c6 phaser: fix DDS dummy cfg 2016-11-13 17:08:59 +01:00
aedb6747f2 Merge branch 'master' into phaser
* master: (47 commits)
  runtime: disable the Nagle algorithm entirely.
  runtime: buffer RPC send packets.
  runtime: don't print debug messages to the UART.
  runtime: print microsecond timestamps in debug messages.
  artiq_devtool: abort if build failed.
  conda: bump llvmlite-artiq dep.
  conda: bump llvmlite-artiq dep.
  llvm_ir_generator: use !{→unconditionally.}invariant.load metadata.
  artiq_devtool: more robust port forwarding.
  setup: remove paramiko dependency (optional and developer-only)
  artiq_devtool: implement.
  artiq_compile: actually disable attribute writeback.
  conda: use pythonparser 1.0.
  conda: tighten pythonparser dependency (fixes #600).
  doc: clarify kernel_invariant doc (fixes #609).
  compiler: Emit all-kernel_invariant objects as LLVM constants
  conda: update for LLVM 3.9.
  add has_dds, use config flags
  Revert "Revert "Revert "Revert "Update for LLVM 3.9.""""
  Revert "Revert "Revert "Update for LLVM 3.9."""
  ...
2016-11-13 16:54:28 +01:00
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
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
whitequark
124b257e05 conda: update for LLVM 3.9. 2016-11-08 23:24:03 +00:00
99ad9b5917 add has_dds, use config flags 2016-11-08 23:33:03 +08:00
whitequark
ec8fe6f8bd Revert "Revert "Revert "Revert "Update for LLVM 3.9.""""
This reverts commit 7b81ed1d18.
2016-11-08 14:22:47 +00:00
whitequark
7b81ed1d18 Revert "Revert "Revert "Update for LLVM 3.9."""
This reverts commit 0d7688017b.
2016-11-08 12:58:20 +00:00
whitequark
a8fd697d41 runtime: unbreak 453e8b7.
Running
  rustc --cfg 'foo="1"'
does not result in a statement of the form
  do_thing()
to be compilex in.
2016-11-08 12:57:06 +00:00
whitequark
e0297039c9 artiq_run: fix bitrot in .ll/.bc runners. 2016-11-08 12:08:20 +00:00
whitequark
0d7688017b Revert "Revert "Update for LLVM 3.9.""
This reverts commit 5f5975844a.
2016-11-08 11:59:16 +00:00
whitequark
798a5f70df Revert "runtime: remove some redundant libm functions copied inline."
This reverts commit fee75bd50f.

LLVM does not have lround as a libcall and this inhibits LICM.
2016-11-08 11:54:17 +00:00
David Nadlinger
6e77f65d50 compiler: Clarify recv_rpc value names and documentation [nfc]
Previously, the phi emitted for the pointer parameter to recv_rpc was –
rather confusingly – called "size", and the pseudo-code in the comment
had bit-rotted.

Signed-off-by: David Nadlinger <code@klickverbot.at>
2016-11-07 14:38:21 +00:00
453e8b7eb3 runtime: support configurations without moninj, log or dds 2016-11-06 23:53:10 +08:00
d158c69be0 phaser: fix frequency comment 2016-11-05 16:54:23 +01:00
David Nadlinger
7dcc987dd7 compiler: Fix break/continue targets in loop else blocks
Previously, they would still target the respective labels in the
just-exited loop.

Signed-off-by: David Nadlinger <code@klickverbot.at>
2016-11-05 02:35:01 +00:00
whitequark
f102f2d4e6 manual: fix rustc invocation. 2016-11-04 09:11:45 +00:00
8ec73cb9ec dashboard: pack moninj widgets (#603) 2016-11-04 16:20:46 +08:00
9d58b4516c manual: Vivado is now default 2016-11-04 11:54:04 +08:00
whitequark
208f3f8568 manual: fix Rust installation instructions. 2016-11-04 03:35:59 +00:00
77bc247744 manual: add missing cd 2016-11-04 00:04:26 +08:00
a252b88a36 manual: fix binutils patch download URL 2016-11-03 23:56:13 +08:00
whitequark
b30734a105 runtime: fix a race condition with async RPCs.
session.rs has code like:

    while !rpc_queue::empty() {
        try!(process_kern_queued_rpc(stream, &mut session))
    }

    // A

    if mailbox::receive() != 0 {
        try!(process_kern_message(waiter, Some(stream), &mut session));
    }

If both an async and a mailbox RPC (async or large sync) are posted
at point A then they will be processed out of order.
This commit fixes the issue by flushing the async RPC queue before
posting any RPC to the mailbox.
2016-11-01 13:22:22 +00:00
whitequark
6fcd57a41a runtime: fix remaining async RPC bugs. 2016-11-01 10:33:57 +00:00
whitequark
2095d01b84 runtime: dirty hacks to remove allocations in ksupport. 2016-11-01 08:55:49 +00:00
whitequark
c1e6d4b67c runtime: fix multiple async RPC bugs. 2016-11-01 06:51:44 +00:00
whitequark
636d4efe81 gateware: rewrite mailbox to use bits_for. 2016-11-01 06:28:43 +00:00
43cd970100 make set_dataset and mutate_dataset async RPCs 2016-11-01 11:11:41 +08:00
whitequark
18ae8d54a3 gateware: fix mailbox. 2016-11-01 02:33:00 +00:00
whitequark
898a716b91 runtime: work around mor1kx ignoring low bits of reset address.
Fixes #599.
2016-10-31 18:13:15 +00:00
whitequark
617e345d16 gateware: fix kernel CPU exec address. 2016-10-31 15:16:35 +00:00