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235 commits

Author SHA1 Message Date
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
Sean Cross
2244a78f16 kernel: allow syscall processing when printing is disabled 
Due to a missing comment, syscalls wouldn't work at all when printing
was disabled. Fix this.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-10-30 20:43:22 +08:00
Sean Cross
6e312ffc8a kernel: process: only print process inits when printing is enabled 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-10-30 20:42:57 +08:00
Sean Cross
e5003eee6d kernel: only print RISC-V exceptions when printing is enabled 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-10-30 20:42:25 +08:00
Sean Cross
49d3ce8a6f kernel: syscall: unify print!() messages 
Use `print!()` instead of `println!()` in order to make error messages
easier to read in the debug console.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-10-30 10:19:28 +08:00
Sean Cross
b3d918358e kernel: syscall: don't error on unaligned memory when Hosted 
When running in a Hosted environment, unaligned memory is not an error,
so don't return `BadAlignment`.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-10-30 10:18:50 +08:00
Sean Cross
95ab9d3c02 kernel: server: unify print messages 
Don't use `println!()`, and instead prefer to use `print!()` when in the
kernel.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-10-30 10:17:27 +08:00
Sean Cross
20a65b88f2 kernel: server: don't Forget Borrow and MutableBorrow messages 
These should be returned to the client process after the message is
done, not forgotten straightaway.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-10-30 10:16:52 +08:00
Sean Cross
cb2d810b38 kernel: irq: prefix pagefault message with KERNEL(pid) 
This unifies this message with other kernel messages.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-10-30 10:16:14 +08:00
Sean Cross
04a3493550 kernel: hosted: print status adding memory to return val 
When returning memory to a thread, attach memory if present.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-10-30 10:15:32 +08:00
Sean Cross
74b3fde198 kernel: add memory from Results to network packets 
If a Result contains attached memory, add that memory on to the network
packet that gets sent by the kernel.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-10-30 10:14:43 +08:00
Sean Cross
702676031e kernel: hosted: run rustfmt 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-10-30 10:14:33 +08:00
Sean Cross
5f6b42d534 kernel: hosted: print pid of a process that exited 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-10-30 10:14:02 +08:00
Sean Cross
fa9a3e0954 kernel: rework hosted network protocol 
This fixes issues regarding passing memory between processes.

We now properly catch `ReturnMemory` and give the memory back.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-10-29 19:46:17 +08:00
bunnie
9a8c402cc2 add hosted mode bits back in 2020-10-14 23:04:54 +08:00
bunnie
6ff8c8518c Merge branch 'master' of github.com:betrusted-io/xous-core 2020-10-14 23:02:14 +08:00
bunnie
ac4d79ea68 logging server bringup 2020-10-14 23:01:57 +08:00
Sean Cross
797d622cc7 kernel: use connect() for some kernel tests 
Now that `connect()` works, use that for some tests rather than
exclusively using `try_connect()`.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-10-14 19:19:01 +08:00
Sean Cross
80a003c839 kernel: syscall: implement connect() 
This implements the `connect()` syscall as a blocking version of
`try_connect()`.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-10-14 19:18:16 +08:00
bunnie
5cf8e9e3bc Merge remote-tracking branch 'origin/master' into ticktimer 2020-10-14 15:30:47 +08:00
Sean Cross
54a8de2776 kernel: fix return_scalar and return_scalar2 
These didn't correctly set the thread status in the server when
returning a value. Instead of marking a server as runnable, it remained
in an idle state.

This correctly sets the thread status in the server, and resumes the
client.

This has been tested in Renode as well as using `cargo test`.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-10-14 11:16:21 +08:00
Sean Cross
ecd2d00f47 kernel: fix return_scalar2 
This call did not work, because it wasn't properly returning control to
the parent process.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-10-14 10:54:23 +08:00
Sean Cross
61fdd5be15 kernel: hosted: add current_tid() to Process 
This allows us to mock the current TID for debugging purposes on hosted
environments.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-10-14 10:54:19 +08:00
Sean Cross
e5100bcb33 kernel: syscall: implement SendMessage 
SendMessage is a blocking version of TrySendMessage, except this call
will block if the server queue is full.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-10-14 10:14:43 +08:00
Sean Cross
0c344efb60 kernel: syscall: move do_yield() to its own function 
This will allow us to call `Yield` for other operations that need to be
blocking.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-10-14 10:14:43 +08:00
Sean Cross
585e55e8b7 kernel: implement retry_instruction() 
This function is used to decrement the program counter to re-run a given
instruction. This can be used as a cheap way to implement blocking
calls.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-10-14 10:04:36 +08:00
bunnie
62b625ec60 convert kernel debug to utra 2020-10-14 03:04:33 +08:00
bunnie
67c49ddbce clean up a warning 2020-10-14 03:04:25 +08:00
bunnie
4d21f2d868 intermediate progress on debugging return messages 2020-10-14 01:28:10 +08:00
Sean Cross
84b39c931a kernel: services: switch address space prior to passing messages 
Switch address spaces to pass messages to the new process, and switch
backafterwards.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-10-13 22:56:04 +08:00
Sean Cross
39c7dced01 kernel: services: switch address space prior to passing messages 
Switch address spaces to pass messages to the new process, and switch
backafterwards.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-10-13 22:54:43 +08:00
Sean Cross
53f1b3c416 kernel: main: make utralib incusion conditional 
Only include utralib when running on baremetal.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-10-13 22:54:12 +08:00
bunnie
154384e3bb output hex for kernel debug 
makes it much easier to read memory allocation requests
 2020-10-13 16:15:15 +08:00
bunnie
cab4c7d4a9 fix more UTRA issues; migrate to dual-UART for kernel/console messages 2020-10-13 05:22:19 +08:00
bunnie
9a50de8b4e refactor: utra -> utralib naming 
this cleans up some namespace issues when including
the utra crate which also refers to utra::generated::utra,
and there are CONST at the crate-level, and also functions
at the module-level which need disambiguation. By naming
the crate utra-lib this saves a bit of syntatic wrangling
at the top of every file.
 2020-10-12 03:56:10 +08:00