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269 commits

Author SHA1 Message Date
Sean Cross
a36ceb00c2 kernel: use crossbeam for tests 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-12-30 16:51:21 +08:00
Sean Cross
c9cb50b579 kernel: use crossbeam-channel internally 
This provides better performance than MPSC.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-12-30 16:50:28 +08:00
bunnie
ed5624635b Merge branch 'master' of https://github.com/betrusted-io/xous-core into hardware 2020-12-14 17:58:39 +08:00
bunnie
c9a18125df add hardware TRNG support to kernel (issue #16) 2020-12-14 17:57:29 +08:00
Sean Cross
ddd57c30bd kernel: fix compile error when debug-print enabled 
This tracks a variable that has been renamed, and was preventing the
kernel from compiling when debug printing is enabled.

This fixes #19.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-12-14 17:02:58 +08:00
hasheddan
1953c0f9d9
Update kernel README.md links to other docs 
Fixes links in kernel directory README.md to top-level documentation.

Signed-off-by: hasheddan <georgedanielmangum@gmail.com>
 2020-12-06 10:41:53 -06:00
Sean Cross
f49518f7d5 kernel: add connect_for_process() 
This allows one process to establish a connection to a server on behalf
of another process.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-12-04 23:25:41 +08:00
Sean Cross
b094f1147b xous: implement sender.pid() 
This is mostly an implementation detail, but appears to work.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-12-04 22:38:35 +08:00
Sean Cross
1fa83d1d94 xous: make MessageSender a struct 
This is now an object instead of an alias for `usize`, in preparation
for adding a `.pid()` function.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-12-04 22:16:24 +08:00
Sean Cross
1f1a535801 kernel: fix pid generation for non-test case 
When compiling under non-test scenarios, the `rand` create conflicts
with the new `rand` module.

Disambiguate this field.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-12-04 21:12:18 +08:00
Sean Cross
168ffe004e kernel: use create_server() for some tests 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-12-04 20:59:21 +08:00
Sean Cross
85b6357d26 kernel: implement CreateServer 
This implements CreateServer, which creates a server with a random name.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-12-04 20:58:14 +08:00
Sean Cross
25e4d16de3 xous-os: rename CreateServer to CreateServerWithAddress 
Servers will, by default, get randomly-assigned SIDs. Certain servers
will want to have well-known SIDs, such as the log server or the
nameserver. These will use a separate call in order to perform this
priveledged operation.

A subsequent patch will add `CreateServer`.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-12-04 20:33:33 +08:00
Sean Cross
f2e2505d4b kernel: server: remove bounds checks from take_waiting_message 
This function has been rewritten to no longer have a bounds check.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-12-01 13:27:30 +08:00
Sean Cross
e4f7c7286d kernel: fix commented code in server 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-12-01 13:20:34 +08:00
Sean Cross
d5f82b7972 kernel: test: fix message ordering test 
It turns out that it was working fine, the test was just broken.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-12-01 13:18:49 +08:00
Sean Cross
e7744b25ec kernel: services: format document 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-12-01 11:54:23 +08:00
Sean Cross
8c994e0397 kernel: add test for message ordering 
Messages are arriving out-of-order, which is considered a bug.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-12-01 10:29:46 +08:00
bunnie
19a7a9ce98 get threaded version of COM handler working 2020-11-27 01:32:10 +08:00
bunnie
99d8f2a525 version with threads compiles, but doesn't work yet 2020-11-27 00:35:29 +08:00
Sean Cross
f0db281c7d kernel: add test for try_receive_message() 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-11-25 20:52:13 +08:00
Sean Cross
8927ef00a2 kernel: add TryReceiveMessage support 
This is a nonblocking form of ReceiveMessage.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-11-25 20:26:21 +08:00
bunnie
db25b05a14 Merge branch 'master' of github.com:betrusted-io/xous-core 2020-11-24 22:46:24 +08:00
bunnie
772bceeb2d fix interrupt pending clear issue in debug module 
during conversion to documented interrupts from Litex a case was
missed.
 2020-11-24 22:46:10 +08:00
Sean Cross
59b108f0d2 Cargo: update to latest lockfiles 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-11-24 22:30:40 +08:00
Sean Cross
f3a2c31067 kernel: add test for out-of-order blockingscalars 
This already works, we just want to make sure it works.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-11-24 15:35:54 +08:00
Sean Cross
e3cb05baf5 kernel: syscall: send WouldBlock to retry messages 
This is handled by the client library to re-send the request.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-11-23 20:04:37 +08:00
bunnie
1aa01fdf5d confirm sleep works, some minor fixup to UTRA style usage 2020-11-23 19:02:02 +08:00
Sean Cross
65c8c6eef5 kernel: implement and use klog!() macro 
This replaces the majority of println!() and print!() calls, and works
on baremetal and hosted modes.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-11-23 17:24:28 +08:00
Sean Cross
eecd9c2367 kernel: syscall: return Ok for yield() on hosted 
When running in Hosted mode, a yield shouldn't do anything.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-11-23 17:23:53 +08:00
Sean Cross
dfa20cc1b1 kernel: test: rename send_repeat_mutableborrow_message 
This function would previously clash with the other name.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-11-23 17:22:59 +08:00
Sean Cross
657604a199 kernel: test: use as_ptr() for memory messages 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-11-23 17:22:37 +08:00
Sean Cross
1291a2b3aa kernel: hosted: fix unused variable warnings 
These only appear when not printing messages.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-11-23 17:21:57 +08:00
Sean Cross
6041269033 kernel: Cargo: minor spacing reformat 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-11-23 17:14:39 +08:00
Sean Cross
8a3f6a2b43 kernel: fix mutableborrow message returning 
We weren't properly updating the packet when a mutableborrow was getting
returned.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-11-23 15:19:02 +08:00
Sean Cross
be1687ffdd Merge branch 'master' of github.com:betrusted-io/xous-core 2020-11-23 14:20:27 +08:00
bunnie
2d5bd20c16 bouncing ball "招财猫"-like totem now working 2020-11-23 03:18:43 +08:00
bunnie
710abce418 fixup to latest soc.svd register documentation standard 2020-11-22 03:45:44 +08:00
Sean Cross
5186594f17 kernel: remove excess debug output from hosted mode 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-11-11 16:22:29 +08:00
Sean Cross
b8d9d1e1b3 Revert "kernel: hosted: don't send responses twice" 
This causes problems, and fixes an issue that doesn't actually exist.
Revert it.

This reverts commit fc9f597092.
 2020-11-11 16:18:39 +08:00
Sean Cross
4e6a189e4e kernel: fix returning scalars in interrupt context 
This is now allowed.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-11-11 16:06:08 +08:00
Sean Cross
4b83edc43b kernel: server: replace ctx with tid 
Threads haven't been called contexts for a very long time.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-11-11 16:04:35 +08:00
Sean Cross
7156ab5e79 kernel: mem: match riscv printf with rest of formatting 
We don't use `println` anymore, we use `print`.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-11-11 16:03:52 +08:00
Sean Cross
aee42bf264 kernel: print message when idling 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-11-11 16:03:29 +08:00
Sean Cross
fc9f597092 kernel: hosted: don't send responses twice 
If we've already sent a response, don't send a second response.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-11-11 12:55:58 +08:00
Sean Cross
2698333382 kernel: allow making syscalls from an interrupt 
This enables calling some syscalls from within an interrupt context.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-11-01 17:59:26 +08:00
Sean Cross
c6e12a5ecd kernel: remove dead code from hosted/irq.rs 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-11-01 16:29:36 +08:00
Sean Cross
7ab2338ff3 kernel: add in_irq parameter to syscall::handle() 
This parameter will determine whether a syscall is being handled from
within an interrupt context. This is because certain calls cannot be
called from such a context.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-11-01 16:27:39 +08:00
Sean Cross
719549a2cb xous: rename ReturnToParentI -> ReturnToParent 
This syscall isn't the only one that can be called from an interrupt
context.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-11-01 16:26:19 +08:00
Sean Cross
d76832dada kernel: services: return ServerNotFound when server isn't found 
This is more intuitive than `OutOfMemory`.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-10-30 20:43:59 +08:00