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32 Commits

Author SHA1 Message Date
whitequark b1d349cc1b firmware: implement a sampling profiler. 
Does not yet support constructing call graphs.
 2018-05-05 00:44:40 +00:00
whitequark 3b054855ec firmware: add allocator debug feature, invoked by artiq_coredebug frontend. 2018-04-21 19:39:46 +00:00
Sebastien Bourdeauducq 432e61bbb4 drtio: add kernel API to check for link status. Closes #941 2018-03-05 00:23:55 +08:00
Robert Jördens a7720d05cd firmware, sayma: port converter_spi to spi2 
* ksupport/nrt_bus
* port ad9154, hmc830, hmc7043
* port local_spi and drtio_spi
* port kernel_proto libdrtioaux, satman
* change sayma_rtm gateware over
* add spi2 NRTSPIMaster
* remove spi NRTSPIMaster
* change sayma device_db
* change HMC830 to open mode and explicitly sequence open mode
 2018-03-01 11:19:18 +01:00
Sebastien Bourdeauducq dc593ec0f0 Merge branch 'rtio-sed' into sed-merge 2018-01-10 12:04:54 +08:00
whitequark b7f38b123b frimware: update to log 0.4. 2018-01-01 11:45:55 +00:00
Sebastien Bourdeauducq 20d79c930c drtio: use SED and input collector 2017-09-24 12:23:47 +08:00
whitequark 4883eea252 libproto: simplify (NFC). 2017-08-31 02:48:59 +00:00
whitequark dd87508a7f Implement forwarding of logs from core device to master. 
Fixes #691.
 2017-07-18 05:31:59 +00:00
Sebastien Bourdeauducq 9045b4cc19 drtio: initial firmware support for multi-link 2017-07-18 00:40:21 +08:00
Sebastien Bourdeauducq c86029bca2 i2c: expose restart as syscall, add structure for I2C-over-DRTIO 2017-06-19 23:44:51 +08:00
Sebastien Bourdeauducq 5d63489080 i2c,spi: add busno error detection 2017-06-19 14:27:30 +08:00
Sebastien Bourdeauducq 8399f8893d add kernel access to non-realtime SPI buses (#740) 2017-06-18 12:45:07 +08:00
whitequark 284382b1f5 compiler: add support for bytearray values in RPC (#714). 2017-06-09 07:15:25 +00:00
whitequark 66a683f583 compiler: add support for bytes values in RPC (#714). 2017-06-09 07:10:48 +00:00
Sebastien Bourdeauducq fe05aede78 firmware: DmaPlayback → DMARetrieve 2017-04-19 11:11:42 +08:00
whitequark c6e8d5c901 runtime: allow setting UART log level explicitly. 
This is way more convenient than commenting out parts
of session.rs when debugging.
 2017-04-15 08:27:18 +00:00
whitequark 0531dc45c3 DMA: erase trace before re-recording it. 
Or we could needlessly OOM replacing a large trace.
 2017-04-15 07:48:02 +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
whitequark 296dc3b0c4 artiq_coreboot: allow hot-rebooting the device. 2017-04-11 03:24:24 +00:00
whitequark 14ae1cc100 runtime: advance now on DMA replay. 
Fixes #700.
 2017-04-05 18:34:36 +00:00
whitequark 948ed6fb0a Extract core device management interface from session interface (#691). 2017-03-29 03:36:21 +00:00
whitequark 795a3e24d8 artiq_coreboot: block until hotswap image is actually received. 2017-03-07 11:36:28 +00:00
whitequark b0cdef3211 firmware: implement hotswap through artiq_coreboot tool. 2017-03-06 16:01:28 +00:00
whitequark 4f94709e9f firmware: move packet dumps to the DEBUG log level. 2017-03-03 06:11:35 +00:00
whitequark e8c093deb3 Allow changing runtime log level without recompilation. 
This shouldn't affect performance much, as the log crate guards
every log statement with a branch, adding just two instructions.
 2017-03-03 06:06:26 +00:00
whitequark a4ece19614 Implement DMA playback. 2017-02-28 21:28:40 +00:00
whitequark 88bf7d2233 firmware: specialize protocol read/write functions. 
Before this commit, proto::io::{read,write}_* functions were taking
a &mut {Read,Write}. This means a lot of virtual dispatch.
After this commit, all these functions are specialized for
the specific IO trait.

This could be achieved with just changing the signature from
  fn read_x(reader: &mut Read)
to
  fn read_x<R: Read>(reader: &mut R)
but the functions were also grouped into ReadExt and WriteExt
traits as a refactoring.

Initially, it was expected that the generic traits from
the byteorder crate could be used, but they require endianness
to be specified on every call and thus aren't very ergonomic.
They also lack the equivalent to our read_string and read_bytes.

Thus, it seems fine to just define a slightly different extension
trait.

This also optimized the test_rpc_timing test: 1.7ms→1.2ms.
 2017-02-26 18:24:37 +00:00
Sebastien Bourdeauducq dff23293c7 Merge branch 'master' of github.com:m-labs/artiq 2017-02-27 01:05:40 +08:00
whitequark 5d3b00cf12 Implement recording of DMA traces on the core device. 2017-02-26 02:50:20 +00:00
whitequark a07bd918f0 firmware: use Rust naming conventions for enum variants. 2017-02-25 22:34:11 +00:00
whitequark 2a81819eb0 firmware: restructure to avoid #[path = "..."] mod ...; 
Such code is fragile, introduces mess in dependencies, and
inflates compile times.
 2017-02-25 17:54:14 +00:00