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370 commits

Author SHA1 Message Date
Sean Cross
80860f0a51 Merge remote-tracking branch 'origin/main' into debugger 2021-06-21 13:22:51 +08:00
Sean Cross
2a1aa24040 kernel: debug: add command to print processes 
This changes the `p` command to only print processes, and renames the
existing behavior to `P` which prints processes and threads.

Signed-off-by: Sean Cross <sean@xobs.io>
 2021-06-18 12:56:27 +08:00
Sean Cross
9ced90190e kernel: fix process suspension 
This enables processes to be "suspended" by going into a Debug state.
Messages will back up and processes will continue to be scheduled around
the suspended process, while the system will continue to operate.

Signed-off-by: Sean Cross <sean@xobs.io>
 2021-06-18 12:55:21 +08:00
Sean Cross
13204d1714 Merge branch 'master' into debugger 
Signed-off-by: Sean Cross <sean@xobs.io>
 2021-06-18 10:56:30 +08:00
bunnie
96ca0eb8a1 Merge remote-tracking branch 'origin/master' into ux-refactor 2021-06-16 17:56:44 +08:00
Sean Cross
180c99aa8d kernel: services: free servers on process termination 
When a process is terminated, we disconnect it from all other processes.
We also need to free the slot in the server table.

Signed-off-by: Sean Cross <sean@xobs.io>
 2021-06-16 17:55:23 +08:00
Sean Cross
76b16579b0 kernel: syscall: remove warning in hosted mode 
This was a function whose only purpose is useful in baremetal mode.

Signed-off-by: Sean Cross <sean@xobs.io>
 2021-06-16 17:54:55 +08:00
Sean Cross
62623f995c Merge branch 'master' of github.com:betrusted-io/xous-core 2021-06-16 16:54:06 +08:00
Sean Cross
fb839f3217 wip 
Signed-off-by: Sean Cross <sean@xobs.io>
 2021-06-16 16:53:40 +08:00
bunnie
a70b858812 convert to using the urandom interface 2021-06-11 16:29:25 +08:00
Sean Cross
651844ba20 Merge remote-tracking branch 'origin/master' into debugger 2021-06-06 19:21:18 +08:00
Sean Cross
3becfc03c5 kernel: debug: store only a single object in GDB_STATE 
This keeps a single object in the global singleton.

Signed-off-by: Sean Cross <sean@xobs.io>
 2021-06-06 11:46:00 +08:00
Sean Cross
29c36c3b0f debug: get kernel building 
Signed-off-by: Sean Cross <sean@xobs.io>
 2021-06-06 11:39:41 +08:00
bunnie
bbfe0fb605 Merge remote-tracking branch 'betrusted/aes' into bunnie-dev 2021-06-02 14:49:11 +08:00
bunnie
fadc9c29ab Merge remote-tracking branch 'origin/master' into bunnie-dev 2021-06-02 03:59:25 +08:00
Sean Cross
bbda4365ae wip commit 
Signed-off-by: Sean Cross <sean@xobs.io>
 2021-06-01 17:57:01 +08:00
bunnie
2f9fa57bdd clock-gate based power management now seems to be more or less working 2021-05-31 23:14:35 +08:00
bunnie
d9e56fd321 very preliminary power savings working 2021-05-31 05:20:54 +08:00
bunnie
7c55925926 intermediate check-in on wfi 2021-05-30 23:07:16 +08:00
Sean Cross
be6e0a9895 kernel: fix thread termination and waiting 
Signed-off-by: Sean Cross <sean@xobs.io>
 2021-05-21 17:23:13 +08:00
Sean Cross
714aff830c kernel: implement JoinThread(tid) 
Signed-off-by: Sean Cross <sean@xobs.io>
 2021-05-21 16:32:38 +08:00
Sean Cross
7c2d3a2247 kernel: implement thread exit support 
Threads now have the ability to exit. Previously this resulted in a
kernel panic.

Signed-off-by: Sean Cross <sean@xobs.io>
 2021-05-21 13:04:14 +08:00
Sean Cross
e616a4bf4f kernel: fix hosted build/warnings 
Signed-off-by: Sean Cross <sean@xobs.io>
 2021-05-20 11:52:03 +08:00
Sean Cross
09b8242bb2 kernel: get process termination "working" on risc-v 
This successfully allows a process to call `terminate_process(val)`.

Signed-off-by: Sean Cross <sean@xobs.io>
 2021-05-20 11:42:31 +08:00
Sean Cross
eb7895d601 xous: add a return code to TerminateProcess 
As part of this refactor, make `terminate_process()` a divergent call.

Signed-off-by: Sean Cross <sean@xobs.io>
 2021-05-20 11:01:00 +08:00
Sean Cross
6e57fbe29b kernel: riscv: make sure to flush mmu 
THe MMU flushing logic got disabled due to an experiment. Re-enable it
to ensure pages are consistent when shifting them across boundaries.

Signed-off-by: Sean Cross <sean@xobs.io>
 2021-05-19 20:55:45 +08:00
Sean Cross
d15127fef6 kernel: run cargo fmt 
Signed-off-by: Sean Cross <sean@xobs.io>
 2021-05-19 14:18:46 +08:00
Sean Cross
47bf453325 kernel: riscv: use raw pointers for mmu mapping 
This avoids using uninitialized arrays to manage the pagetables, and
instead uses raw pointers. This should avoid using potentially
uninitialized data.

Signed-off-by: Sean Cross <sean@xobs.io>
 2021-05-19 14:17:53 +08:00
Sean Cross
25f976dbb6 kernel: claim uart irq before we enable irqs 
In order to prevent a race at the start, claim the IRQ before we enable
the IRQ.

Signed-off-by: Sean Cross <sean@xobs.io>
 2021-05-19 14:17:07 +08:00
Sean Cross
30b82b25b1 kernel: run cargo fmt 
Signed-off-by: Sean Cross <sean@xobs.io>
 2021-05-19 14:12:01 +08:00
Sean Cross
9a9cd25414 kernel: debug: add help screen to debug output 
Signed-off-by: Sean Cross <sean@xobs.io>
 2021-05-10 19:37:30 +08:00
Sean Cross
1b7ee904b2 kernel: print running total of memory usage size 
Print the total of all processes in the system.

Signed-off-by: Sean Cross <sean@xobs.io>
 2021-05-10 15:09:46 +08:00
Sean Cross
5bca939c37 kernel: mem: fix build on hosted mode 
Signed-off-by: Sean Cross <sean@xobs.io>
 2021-05-10 14:42:53 +08:00
Sean Cross
49904988c3 kernel: debug: add simple uart interface 
Wire up the interrupt handler to allow printing various debug
information.

Signed-off-by: Sean Cross <sean@xobs.io>
 2021-05-10 14:37:33 +08:00
Sean Cross
1b85d8a4de kernel: format syscalls as hex 
This improves readability, particuarly when addresses are involved.

Signed-off-by: Sean Cross <sean@xobs.io>
 2021-05-10 14:37:33 +08:00
Sean Cross
040759af25 kernel: services: add process_name(pid) 
Add a function to determine the name of a process.

Signed-off-by: Sean Cross <sean@xobs.io>
 2021-05-10 14:37:33 +08:00
Sean Cross
1818256f5e kernel: mem: add ram_used_by() function 
This can be used to determine the amount of ram used by a particular
process ID.

Signed-off-by: Sean Cross <sean@xobs.io>
 2021-05-10 14:37:33 +08:00
Sean Cross
5b92dd9874 kernel: services: use exception stack for kernel interrupts 
When the kernel is processing an interrupt, use the exception stack.
This ensures that the kernel interrupt handler can switch processes
without having its stack go away.

This is used for debug information.

Signed-off-by: Sean Cross <sean@xobs.io>
 2021-05-10 14:37:33 +08:00
Sean Cross
ce66a6bde2 kernel: riscv: add exception const to mem 
The address of the exception page is now available for use as a standard
variable.

Signed-off-by: Sean Cross <sean@xobs.io>
 2021-05-10 14:37:33 +08:00
Sean Cross
5bd9e40ace kernel: riscv: add print_thread_* family 
These calls can be used to print out thread information for debugging.
This augments the existing `print_thread()` call, which has been renamed
to `print_current_thread()`.

Signed-off-by: Sean Cross <sean@xobs.io>
 2021-05-10 14:37:33 +08:00
bunnie
08a86749fe fix hosted mode bugs 2021-05-09 01:13:16 +08:00
bunnie
c0d72c282b increase process limit 2021-05-06 00:44:32 +08:00
bunnie
f975884f1e increase server limit to 128 2021-05-06 00:41:27 +08:00
Sean Cross
23e759ffd8 kernel: fix multi-page lending 
Due to several errors, multi-page lending did not work properly.

To begin with, if a page was not allocated then it would not be able to
be sent. That is, if you allocated 8192 bytes but only ever accessed the
first 4096 bytes, then an error would be encountered when lending the
unaccessed upper page.

Furthermore, due to a striding error in accessing pointers, half-pages
were treated as full pages.

Signed-off-by: Sean Cross <sean@xobs.io>
 2021-05-05 10:58:12 +08:00
bunnie
46fe3885dc cleanup more turds left over during the bringup of suspend/resume 2021-05-01 00:35:32 +08:00
bunnie
48074b626b clean up more debug messages 2021-04-30 23:33:35 +08:00
bunnie
260b154741 clean up some boot process holdovers 2021-04-30 23:28:31 +08:00
bunnie
640ddb48e8 suspend/resume now works to hardware 2021-04-30 19:29:36 +08:00
bunnie
0e2d57c9fb retrofit the kernel and loader to handle resume 
and now the even harder debuggening begins...zomg o_O
 2021-04-30 01:55:38 +08:00
bunnie
308cda1af4 remove unused sie use 2021-04-25 21:44:21 +08:00